Image forming device, a cartridge and a storage device mounted in the cartridge

FIELD: engineering of image forming devices.

SUBSTANCE: image forming device has first image forming mode for forming an image on image-carrying element by using a developer under given condition of image forming and second image forming mode for forming an image on an image-carrying element by using a developer under second condition of image forming, which is different from the first given image-forming condition and is set in such a manner, that developer flow value in second image forming mode is less than flow value in first image forming mode. Device also contains: storage means meant for storing information for setting second image-forming condition, corresponding to the set of levels of usability value of image-carrying element, differentiation means for differentiating an image subject to forming and control means, meant for setting second image forming condition in second image forming mode depending on the result of differentiation, produced by means of differentiation and usability value of image-carrying element and information, stored in the storage means. The cartridge contains information processing means, intended for processing information on the image, which should be formed, an image-carrying element, storage means, meant for storing information in the cartridge, and having first storage area for storage of information, used in conjunction with image information, for setting second image-forming condition depending on the set of levels of usability value of image-carrying element in second image forming mode.

EFFECT: creation of device for forming an image and of a cartridge, which allow to reduce amount of used developer, and to preserve stable quality of image independently from usability value of image-carrying element.

4 cl, 38 dwg

 

The technical field to which the invention relates.

The present invention relates to a device for the formation of images, in particular to the forming device of the image electrophotographic type, such as a laser printer. The present invention also relates to a cartridge for a device forming an image and a storage device intended for installation in the cartridge.

Prior art

Description presented with reference to the electrophotographic device for the formation of images, such as a laser printer, shown in figure 2.

Electrophotographic device imaging forms an electrostatic latent image by irradiating the carrier electrophotographic image element is uniformly charged by the charging means 2, and the light corresponds to the image information, and visualizes the electrostatic latent image by applying developer (below referred to as "toner") as a recording material through the use of manifesting money. Then toprove image is transferred from the image bearing element to the recording paper P used as a recording medium, and the recording paper P holding the toner, is served in the device is istwo 18 fastening so, in order not to violate toprove image. This image is then subjected to fixing by heat and pressure using a device 18 for fixing its output as a permanent image on the recording paper P. For showing the tool attached to the toner container as containing developer part 4 containing the toner. The toner consumed in the image formation. In many cases, the toner container, developing means, image bearing element, means to charge and so are one in the form of a cartridge handling (below referred to as "cartridge"). When the toner is consumed, the user can resume the formation of an image by replacing the cartridge with a new cartridge.

The cartridge contains a certain amount of toner is determined by the volume of the container. Therefore, the number of printable user-sheets, mostly, is in a certain proportion of the toner. Also, an increasing number of users who save toner, reducing its consumption, in order to obtain a greater number of printed sheets. In addition, it also increases the number of laser printers, with this mode of forming images, such as the small flow rate (toner) or draft mode, which postalautomation to reduce the amount of consumed toner.

As a means to reduce the amount of toner you can use the tool to change the contrast manifestations, the means for changing the number of the laser radiation, etc. as a result of changing the contrast of the manifestations or the laser light source changes the latent image formed on the raw image element. As a result, you reduce the coverage of toner at the time of manifestation.

However, in the case when the toner is reduced only by the contrast of the symptoms or the amount of laser radiation, the image of thin lines or the image of the characters has a very small line width, which in some cases gives a poor image quality even under such condition that the change of image quality is less noticeable in the solid black image having a somewhat larger area.

To resolve this problem as a means to reduce the flow rate of the toner, but at the same time guaranteeing the line width has been proposed such a method of control that part of the frame image made by means of a binary image, is printed with the original density, but the consumption of the toner is reduced in the inner part of the image, this is done in order to reduce the amount of toner at the same time to ensure Shi is inu line (see for example, laid claim to the Japan patent No. Hei 9-085993). More specifically, (3) control method allows to perform such image processing, the original image (image data) 301 to be printed, changed to pseudoplatanus image 302, and the part of the frame, as the region is concentrated pixels, like the solid black image is printed with the original density, but the inner part is provided with distributed empty dots that are not printed or grayscale image 303, and the amount of laser radiation or switching period of the laser varies as a unit at one point.

In the specified paved the application of this mode of imaging to suppress toner coverage through the modulation of the image is referred to as "the regime of small flow (toner)".

However, the above conventional means of image control has the following disadvantages.

In the management tool, the image of the small flow rate, which is typically used, as described above, part of the frame part comprises pixels of the resulting image is printed with the original density, and the image is converted to pseudoplatanus image and a grayscale image in the inner part (Central part)to reduce the th amount of toner. In this case, the management tool image evenly adaptable for all images except those that are part of the frame. The ratio between the template pseudoplatanus image and the template gray-scale image is switched in accordance with the terms of use, whereby it becomes possible to provide a small flow rate, which preserves the image quality.

However, in the case of the implementation of the regime of small flow pseudoplatanus image when, as expected, the amount of the toner is further reduced compared with the value in the normal mode of small flow occurs such a problem that a part of the empty points are very visible, making the image, which was originally a picture of a solid black, mesh image.

In addition, in modern laser printers, the number of available sheets for the toner cartridge increases as it gets more popular, so in practice requires a further increase of the lifetime and the number of available sheets. However, prolonged service life of the toner cartridge leads to a difference in density or the line width of the image solid black between the toner cartridge in its initial state and toner cartridge Assembly, whereby in the panels printing (copying) a very large number of sheets. As a result, in some cases worsens the resulting image quality. In particular, this phenomenon is more noticeable when the material, which is easily used up during the continuous formation of images used in the photosensitive layer carrying the image of the item (or in the case, when using a material having different sensitivity characteristics bearing the image of the item).

Further, in the case of the implementation of the regime of small flow of the halftone image obtained by changing the time of radiation or the amount of radiation of the laser scanning device, a problem arises related to the fact that the regime of small flow more affected by changes in the durability of the photosensitive layer carrying the image of the item. More specifically, in relation to conventional laser radiation when not executing halftone processing, essentially, the sensitivity does not change due to the abrasion of the photosensitive layer caused by prolonged use of bearing the image of the item. However, for laser radiation, variable in time, radiation, or for modifying the quantity of light sensitivity of the image bearing element becomes smaller, since the photosensitive layer becomes thinner in resultatives the photosensitive layer, i.e. the abrasion of the image bearing member. The result is a decrease in high-density and deterioration of the line width.

You can set the density sensor to detect changes in sensitivity of the image bearing member or the potential sensor platen for carrying the image of the item, but the installation of sensors is accompanied by an increase in the cost of embedding schemes for detection of the above-mentioned sensors, and a problem arises relating to the provision of space for installation of the sensors.

In addition, in the above-mentioned difference between the template image in a solid black color or line width in the normal means of image control the amount of toner required to save the image area, i.e. had to sacrifice a low degree of toner, if the means of reducing the amount of toner evenly reduces the amount of toner regardless of the area of the image.

When the expansion of the range of cartridges has been put into practical use a cartridge that can be installed with the possibility of withdrawal in the same device imaging, but has a different amount of toner. For example, implemented industrial introduction of the cartridge, which reduced the price by reducing the amount of toner. Developed bearing the picture is of the item (photosensitive element), used in this cartridge that has a different amount of toner, which has a thickness that is adapted to the respective amounts of toner, so that in some cases reduce costs. For this reason, in the case when the amount of toner consumption is reduced by using a small amount of toner corresponding to the initial thickness of the drum is different depending on the respective cartridges. As a result, there is such a problem that need a large, durable use drum or improving the quality of the image.

Summary of the invention

The technical task of the present invention is a device for forming an image and a cartridge which will allow you to reduce the amount of the developer, but at the same time to maintain stable image quality irrespective of the value of usability bearing the image of the item.

Another objective of the present invention is to provide a storage device to install in the cartridge.

The problem according to the present invention is solved by a device forming an image having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined is slowiy imaging and the second mode of image formation for forming an image on the raw image member by using developer under the second condition of forming images, which is different from the first specified condition of forming images, and set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than in the first mode of image formation, thus forming device of the image contains

the storage medium designed to store information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item, and

management tool to change the second condition of image formation in the second mode of forming the image based on the value of the currency bearing the image of the item and the information stored in the storage medium.

According to the present invention the task is solved by creating a print cartridge that is installed with the possibility of removing the device forming the image having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition and the formation of the image, which is different from the first specified condition of forming images, and set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than the consumption in the first mode of image formation, the cartridge contains

bearing the image element and the

the storage medium designed to store information on the cartridge, and storage medium has a first storage area for storing information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item in the second mode of forming the image.

According to the present invention the problem is solved additionally by creating storage device intended for installation in a cartridge that is installed with the possibility of removing the forming device of the image containing the image bearing element and having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the WTO is the first condition for the formation of the image, which is different from the first specified condition of forming images, and set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than the consumption in the first mode of image formation, the storage device contains

the first storage area intended for storing information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item in the second mode of forming the image.

According to the present invention also proposed a storage device for installation in a cartridge that is installed with the possibility of removing the forming device of the image containing the image bearing element and having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition for the formation of the image, which is different from the first specified condition of forming images, and is set so that the amount of consumption of developer disidentico image in the second mode of forming the image is less than the consumption in the first mode of image formation, the storage device contains

the first storage area intended for storing information for setting the second condition of image formation corresponding to the value of the currency bearing the image of the item

moreover, the information for setting the second condition of image formation corresponding to the value of the currency bearing the image of the item represents the information that is used in the second mode of forming the image, but not used in the first mode of forming the image.

Brief description of drawings

These distinctive features and advantages of the present invention will become clearer upon consideration of the following description of preferred embodiments of the invention with reference to the accompanying drawings, on which:

figure 1 depicts the diagram of a device for forming an image according to the first variant implementation of the present invention;

2 is a diagram of the device for forming images according to the first variant implementation of the present invention;

figure 3 diagram of a known image processing;

4 is a diagram of image formation according to the first variant embodiment of the invention;

5 is a diagram about what Abadi image according to the first variant embodiment of the invention;

6 is a diagram concerning the information about the image in the first embodiment of the invention;

Fig.7 is a diagram of electric potential on the raw image element used in the first embodiment of the invention;

Fig(a), 8(b) and 8(C) - diagram of the relationship between the ratio of the modulation period, turning on the laser and potential exposure on the raw image element between potential exposure and the density of solid black and between potential exposure and line width, respectively, in the first embodiment of the invention;

Fig.9 is a diagram for illustration of a sample for measuring the density of a solid black color and line width in the first embodiment of the invention;

figure 10(a) and 10(b) - diagram of the relationship between the number of received sheets and a solid black image and between the number of received sheets and line width, respectively, in the first embodiment of the invention;

11 is a diagram of the relation between the ratio of the modulation period, turning on the laser and potential exposure on the raw image element before and after the filing of the sheet in the first embodiment of the invention;

Fig - chart correlation between the number of received sheets, and potential exposure on the raw image the position of the element in the first embodiment of the invention;

Fig - chart correlation between the number of received sheets, and potential exposure on the raw image element under different conditions sheet feeder in the first embodiment of the invention;

Fig - chart of bias voltage for the charge and the time of rotation of the image bearing member in the first embodiment of the invention;

Fig - chart correlation between the number of received sheets and the value of the currency bearing the image of the item (the value of the usability of the drum) in the first embodiment of the invention;

Fig table values the usability of the drum and the corresponding ratio of the modulation period, turning on the laser in the first embodiment of the invention;

Fig - table threshold and ratio modulation when turning on the laser under different conditions of image processing in the first embodiment of the invention;

Fig(a) and 18(b) diagram of the switching effect of modulation depth when turning on the laser in the first embodiment of the invention;

figa, B - block diagram of the sequence of control operations in the first embodiment of the invention;

Fig - table ratio of the modulation period, turning on the laser in each of the modes of image formation in the first embodiment Khujand is the implementation of the invention;

Fig and 22 - circuit threshold information of the switch, stored in the storage device, and storing the identification number of the switch in the first embodiment and second embodiment, respectively;

Fig is a diagram showing the relationship between the storage device cartridge, a Central processing unit (CPU) of the host device and the storage device, host device in the second embodiment of the invention;

figa, B - block diagram of the sequence of control operations in the second embodiment of the invention;

Fig diagram of the threshold information of the switch, stored in the storage device, and storing the identification number of the switch in the third embodiment of the invention;

Fig is a diagram showing the relationship between the storage device of the cartridge, the CPU of the host device and the storage device, host device in the third embodiment of the invention;

figa, B - block diagram of the sequence of control operations in the third embodiment of the invention;

Fig diagram of a storage device used in the first embodiment of the invention;

Fig diagram of the threshold information of the switch, stored in the storage device, and storing the identification number of the switch in the fourth embodiment, implemented the program of the invention;

Fig is a diagram showing the relationship between the storage device of the cartridge, the CPU of the host device and the storage device, host device in the fourth embodiment of the invention;

figa, B - block diagram of the sequence of control operations in the fourth embodiment of the invention;

Fig - diagram between the characteristic sensitivity of the image bearing member and the potential exposure in the first embodiment of the invention;

Fig(a) and 33(b) - diagram of the relationship between the response curve and the solid black image and between the characteristics of sensitivity and line width in the first embodiment of the invention;

Fig(a) and 34(b) - allocation table of the moments of switching time and the ratio of the modulation period include laser for bearing the image elements having different photosensitive characteristics in the first embodiment of the invention;

Fig(a) and 35(b) - allocation table of the moments of switching time and information identifying those image elements having different photosensitive characteristics in the storage device used in the first embodiment of the invention;

Fig, 37, and 38 is a diagram explaining the kinds of processing methods is zobrazenie in the second, the third and fourth embodiments, respectively, according to the invention;

Preferred embodiments of the inventions

The first option exercise

Figure 2 presents a diagram of the device forming the image according to the present invention.

The device forming the image includes a photosensitive image bearing element 1, which is made by coating a photosensitive material such as an organic photoconductor (OPC) or amorphous Si on a cylindrical substrate made of aluminum, Nickel or the like, and bringing into rotation driving means in the clockwise direction indicated by arrow a with a certain peripheral speed.

The device forming the image additionally includes means 2 charge for uniformly charging the circumferential surface of the rotating photosensitive image bearing member 1 with a certain polarity and with a certain potential. In this embodiment, is used to contact the device charge using the charging roller.

The device forming the image further comprises means 3 display of image information, in this embodiment uses a laser scanner as a means of exposure.

The scanner 3 includes the impact of a semiconductor laser, the polygonal mirror, the lens F-Theta etc. and scans and exposes the uniformly charged surface of the photosensitive image bearing member by the laser beam L, which is controlled by on-off depending on the image information sent from the host device (not shown), forming an electrostatic latent image. Manifesting device 4 constituting the cartridge processing, shows the electrostatic latent image on the photosensitive bearing the image of the element 1 in the form of Theravada image.

As a way of manifesting used abrupt manifestation, two-manifestation or the like In many cases used a combination of document images and symptoms with treatment.

The roller 5 transfer, having an elastic layer is used as the contact charging like the rotating element is in contact with the photosensitive image bearing element 1 under pressure for the formation of the presser part of the N transfer between them and is driven by driving means In the counterclockwise direction by the arrow b with a certain peripheral speed.

Toprove the image formed on the photosensitive bearing the image of the element 1, the follower is about is transferred electrostatically to the recording material P to record (transmitting-receiving material), served from a portion of the paper in the presser portion N of the transfer.

The recording material P supplied from the paper, such as the part 7 of the manual feed paper or cassette portion 14 of the paper, after transfer to the idle state by a sensor 10 of the provisional filing is served in the presser part of the N transfer (part of image formation) by means of rollers 11 registration, the registration sensor 12 and the guide 13 pre-migration.

The recording material P is fed to the presser part of the N transfer between the photosensitive image bearing element 1 and the roller 5 transfer synchronously with toneroom image formed on the photosensitive bearing the image of the element 1, by means of the sensor 12 of the Desk.

To solve the problem of double feeding, when multiple sheets of the recording material mistakenly served simultaneously at the time of filing the recording material P from the paper feed, used rollers 8, 15 branch or the like. The recording material P supplied through the presser portion N of the transfer, where he takes toprove image, is separated from the surface of the photosensitive image bearing member and served in the device 18 fastening through the passage 9 to the leaves. The device 18 of the fastening used in this version done by the means, is a device fastening type film and consists of two clamping rollers comprising a block 18a of the film and pressure roller 18b. The recording material P that holds toprove the image is inserted between and is served in the presser part of TN fixing, which is a part of pressure contact between the block 18a of the film and the pressure roller 18b, and is subjected to heat and pressure, whereby toprove image is fixed on the recording material and becomes a permanent image.

The recording material P, on which is fixed toprove the image is sent to the discharge rollers 19 to the output tray 16 release faceup or tray 17 release facedown.

On the other hand, the surface of the photosensitive image bearing element after transfer Theravada image on the recording material P is cleaned by removing residual toner transfer cleaning device 6 of the cartridge processing, thereby repeatedly performing the image formation. In this embodiment, the cleaning device 6 includes a cleaning device with a squeegee.

Below describes in detail the controller and the cartridge handling device forming an image according to nastasemarian with reference to figure 1.

Electrophotographic device imaging (below referred to simply as "master node (device)")used in this embodiment is a laser printer that receives image signals from the host computer and outputs the signals as visual images. The device is a structure in which consumable items, such as photosensitive image bearing element, showing the tool and the developer (toner) are entirely cartridge processing, which can be installed with the possibility of removing the main device node.

The controller 101 (Fig 1) the device forming the image contains the CPU 103 (master node) as the Central computer processing unit to perform image formation, the controller 104 I / o for communication with the storage device installed in the cartridge, the controller 105 of the image processing for image processing result of the image signal, the controller 200 high output voltage high output voltage, such as the bias voltage for charging or the bias voltage for the display, the controller 106 of the excitation laser to control the laser scanning device depending on in which output the image signal and the device 124 for storage set values, such as the processing condition, the processing method of an image and image information sent from the host computer.

When the cartridge 102 of the handle inserted in the main unit and then power on the master node, the controller 104 I / o communicates with the device 111 storage installed in the cartridge 102, for various values of storage, such as the processing condition and background. The resulting values of storing received by the controller 104 I / o is sent to the CPU 103 of the main site along with the values stored in the device 124 is stored and processed with the values stored in the device 124 is stored, and processed as data at the time of formation of the image.

Signal 107 of the image sent from the host computer in the form of block 100 input images is connected to the forming device of the image subjected to image processing, such as matting or density adjustment, i.e. is treated as the image signal is able to carry out an optimal image formation.

The CPU 103 of the master node calculates the optimum machining conditions from the value storing received from device 111 storage cartridge, and the image signal on which the head is agrees image processing, and forms an image with the optimal value of the machining conditions.

Then the cartridge 102 of the handle is formed as one unit with (photosensitive) bearing the image element 112, the roller 113 of charge as a means of charge to uniformly charge the image bearing element 112, a developing device 114, the rod 115 as a cleaning means for cleaning the surface of the image bearing element 112, and the container 116 with waste toner to accommodate the remaining toner removed from the image bearing element 112 by means of the rod 115, and is installed with the possibility of removal in the main device node.

Manifesting device 114 includes a container 117 toner as containing the developer portion for accommodating toner T as a developer, the container 118 with the developer attached to the container 117 toner, showing the roller 119 as manifesting means, located opposite the image bearing element 112, the metering blade 120 as a control element developer for regulating the layer thickness of the toner, internal mixing element 121 of the toner container for stirring the toner T in the container 117 toner to supply the toner T in the container 118 with the developer and mixing element 122 for supplying the toner T supplied from the container 117 toner, h is showing the roller 119.

Before the cartridge will be used between the container 117 toner container 118 with the developer, glued sealing the toner element 123.

Sealing the toner element 123 is located so as to prevent precipitation of the toner even when there is a severe blow, for example, during transportation of the cartridge, and is removed by the user immediately prior to installation of the cartridge in the main node.

In this embodiment, as the developer used an insulating magnetic one-component toner.

In the device 111 of storage used in this embodiment, stores the set values of the process of image formation, such as set values of bias voltage for charging and manifestations, necessary for the formation of the image, and the set value of the laser radiation as a means of exposure, and amount of usage, such as the value of the currency bearing the image of the item and the amount of remaining toner. In the case when the set value of the bias voltage is switched depending on the prehistory of the sheet feeder, the device 111 storage is stored, for example, the threshold information or set a value that switches, based on the threshold information is.

The use of the above-described structure bearing the image element is uniformly charged by a charge roller, and its surface is subjected to the scanning exposure with laser light, which changes depending on the image signal emitted from the laser scanning device, whereby is formed an electrostatic latent image, providing information about the image of the object. The electrostatic latent image is visualized as Theravada image by joining the toner under the action of the developing roller, etc.

4 shows the sequence of operations of the image processing and describes the basic principles of image processing.

To the main printer Assembly connected computer equipment 100, such as a personal computer or host computer 107 transmits information about the image such as a character (text or graphics. Computer equipment sends information 107 about the image on the master node of the printer on the signal line 404, and this information 107 about the image is sent to the CPU 103 of the master node in the master node 403 printer or a volatile storage device (not shown)provided in the CPU 103 for temporary storage of image data prior to the period of time when the images are displayed.

When it is confirmed that you have received all information 107 about the image to be printed on one recording sheet, the main node of the printer starts a printing operation. After starting the print operation information 107 about the image is sent to the controller 106 of the excitation laser on signal line 408. On the basis of information 107 about the image controller 108 excitation laser transmits a signal for controlling emission/non-emission of laser radiation laser scanning device 108 via signal lines 410, thereby forming an electrostatic latent image 412 on a photosensitive element 411.

In the image data sent from the computer hardware, enter the code control emission of a laser scanning device for each pixel, which represents the minimum resolution of the main printer Assembly. For example, the stored binary data, to print or not to print a dot, or you can store multi-level data that includes halftone data for gray. The minimum unit of resolution, i.e. one point, referred to as one pixel.

Based on each one pixel of the binary or multilevel data, the time is adjusted emission or the amount of radiation of the laser scanning device 108, via switchout is sustained fashion element, the potential difference of the electrostatic latent image is provided to control the coating of toner and regulation of density, providing good gradation characteristics.

During normal image formation, based on the data for each one of the pixel corresponding to the image signal, the value of radiation (radiation or the amount of radiation) laser scanning device 108 is controlled by the CPU 103, is the laser radiation, forming an image on a photosensitive element by forming a latent image.

On the other hand, there is the mode of formation of the image, rather than the conditions of the normal image formation, i.e. the mode of the small amount of toner used for printing by means of further reducing the amount of toner than in the normal image formation, toner save.

Mode small amount of toner used in this embodiment is described with reference to figure 5. The method of image processing in this embodiment is based on the degree of concentration of pixels to reduce uneven amount of toner.

In the selection of the normal imaging mode and a small amount of toner, you can select the modes switch on the control panel (not shown)provided in the device forming the image, or input commands from an external computer(for example, 100 figure 1).

Image information sent from the external computer 100 (figure 5) on a laser printer, is received by the CPU 103 of the laser printer and stored in the CPU 103 or the storage device (not shown).

The CPU 103 decides whether or not to perform printing in the normal imaging mode or a small amount of toner in accordance with the signal instructions from the control panel (not shown) or command from an external computer. In that case, if the print mode is determined as the normal image formation, information 502 about the image (original image) is sent to the controller 106 of the excitation laser, as shown by the arrow A. In the case where the printing mode is determined as the mode of small toner, information 502 about the image (original image) is sent to the controller 105 of the image processing to perform image processing. The controller 105 of the image processing to the source image pixel is analyzed, so that the area of pixels classified into the presence of the field is concentrated pixels, which are small, and the existence of a region of concentrated pixels having a large size. If the field is concentrated pixels of the small size image processing is performed on the template 504 processing, and if the field is concentrated peaks is her large image processing is performed on the template 505 processing. After completion of the image processing information 506 about the image sent to the controller 105 of the image processing, the resulting image information is again sent to the CPU 103 of the main unit and is sent to the controller 106 of the excitation laser in the form of the processed image 507 after the image processing, thus is used to control the radiation.

Figure 6(a) and 6(b) presents the types of image processing in the case of reducing the amount of consumption of toner.

Figure 6(a) there is an image 601 small area with a relatively small area of pixels for the display, and the image 602 a large area, with a relatively large area of pixels for the display. These images 601 and 602 of the small and large area specified in the information 604 about the image as part of it.

Cell 603 shows one pixel and corresponds to 1/600 inch in the case of a resolution of 600 dpi. Pixel 605 labeled "B"represents a pixel, in which is printed the point in the presentation, and a blank pixel (which is not marked "In") is a pixel in which a dot is not printed.

In the field of 601 concentrated pixels, which is defined as the image of a small area in the CPU 103 of the image processing, the image processing is performed in accordance with the template (504 figure 5) of the processing image to image small area. Further, in the field 602 concentrated pixels, which is defined as the image of a large area, image processing is performed in accordance with the template (505 figure 5) image processing to image a large area.

In this embodiment, the area of the focused pixels large area represents, for example, a concentrated area of pixels with at least 8 points in the direction of the main scan and at least 8 points in the direction of auxiliary scanning. The area of the focused pixel small area represents, for example, a concentrated area of pixels having no more than 7 points in the direction of the main scan and no more than 7 points in the direction of auxiliary scanning. Determination in respect of areas of interest, pixels large/small area is not limited to the above method, but can be changed accordingly.

In image information after image processing (pigv) pixels processed as image 606 small area, are treated as data N1 (608) halftone gradation (gray), which significantly reduce the density. Next, the pixels are processed as image 607 large area, are treated as data H2 (609) grayscale, gradate the (grayscale), which maximally reduce the amount of toner at the same time keeping the density. Sets the processing condition of image halftone H2 for image processing a large area, so that the degree of decrease in density results in terms of image processing is greater than the degree of decrease in image processing halftone H1.

As shown in Fig.7, performs control of turning on the laser, which is based on the formation of the halftone image through analysis of binary data, used in this embodiment.

The ratio of the modulation period, turning on the laser is controlled to generate a potential difference in part of the exposure on the raw image element based on the time of radiation.

7 shows the coefficient 701 modulation with a switching period of the laser required for the formation of a single point, depending on the printer resolution. Is formed of a solid black image in the radiation 703 in sequence during formation of a single point. In this case, the potential 705 on the raw image element is equal to the potential Vl 708 exposed by the light of the potential Vd 707 dark part of the image bearing element.

The time of laser radiation by one pixel to the / establishment, which is the basis, required for forming one pixel is referred to as "reference time 701 radiation".

In the case when the ratio of the modulation period, turning on the laser is controlled so that it equals 50% of the reference time 701 radiation, the resulting coefficient 702 modulation period include laser to create a single point represents one that is shown in the upper right part of figure 7. A solid black image, for which the ratio of the modulation period, turning on the laser is controlled so that it is equal to 50% of the standard time of the radiation, is formed continuous emission 704 factor 702 modulation. As a result, the potential 706 on the raw image element has the potential Vl' 709 bright parts in the exposed portion relative to the surface potential Vd 707 carrying the image of the item. Therefore, the potential of the latent image on the raw image element changed to provide a difference 710 between the potentials Vl and Vl' exposure, thus changing the amount of toner. The difference between the potential Vl of the display and the DC component of the bias voltage for the display is referred to as the contrast of the display. The difference between the potential Vd of the dark part and a constant part of the bias voltage for the display is referred to as the reverse is intrastate.

On figa shows the relationship between the ratio of the modulation period, turning on the laser (the laser radiation and the potential Vl of exposure (potential of a light portion) on the raw image element. The abscissa represents the degree (ratio) (%) ratio of the modulation period, turning the laser on the reference time of the radiation. When the ratio of the modulation period, turning on the laser is 100%-60% in the reference period of the radiation, the change of potential Vl of the exposure on the raw image element is small. Also in the case of not more than 60% of the reference period radiation change is small, but gradually increases with the decrease of the modulation depth.

On fig.8b shows the relationship between the potential Vl of the exposure on the raw image element and density (image) solid black. The density of the solid black is not linear relative to the potential exposure. In particular, when the potential Vl of the display becomes small (large in terms of absolute values), the density of the solid black is sharply reduced. A sufficient density of a solid black, mostly, is not less than 1.4, so that the necessary potential exposure on the raw image element at the moment of time of not less than -200 C. Therefore, koeffizientenabscha period include laser can be reduced to about 60% on the reference exposure time (figa).

On Fig(C) shows the relationship between the potential Vl of the exposure on the raw image element and a width (image) line. Line width in this case is determined by measuring by means of a microscope, has a width of 4 dots (approximately 170 μm) at a resolution of 600 dpi. Found that the line width of the moderate change in relation to potential exposure, i.e., gradually decreases with decreasing potential Vl of exposure, as in the case of density of solid black. In relation to the width of 170 μm line in 4 points required line width to provide a satisfactory image quality is about 160 μm. To obtain the line width of not less than 160 μm, it is required that the potential exposure on the raw image element was no less than -180 C. Therefore, the ratio of the modulation period, turning on the laser can be reduced to about 80% at the reference time display.

The density of a solid black color and line width is influenced by (figa-c) on the potential exposure on the raw image element. In particular, the potential exposure varies significantly in relation to image solid black. Found that the potential exposure for the respective images (the image is solid black and the image is agenie line) to maintain satisfactory image quality differ from each other.

Figure 9 presents the image data to confirm the progress of the change of the density of a solid black color and line width. The image data include in the Central part, for example, a recording sheet of size A4 image 901 solid black in the form of a 5 cm square for measuring the density of a solid black and the adjacent vertical and horizontal lines 802, and each has a length of 5 cm (1180 points) and a width of 4 points for measuring the line width. The density of the solid black image is measured using a device for measuring optical density by reflection ("RD-918", manufactured by Macbeth Corp.) in respect of a square solid black image. The line width is determined by measuring the corresponding width of vertical and horizontal lines using a microscope and obtaining the average value of these widths.

In this embodiment, an experiment is performed in relation to changes in the density of a solid black color and line width depending on the number of submitted sheets, provided that the ratio of the modulation period include laser to image a large area, such as an image 901 solid black, is set equal to 60%, and that for small image regions, such as the image 901 line is, is set to 80% based on a certain ratio of the modulation period, turning the laser on for a single point (the reference exposure time).

In this experiment, the processing speed is set to 200 mm/s, with 30 of the recording sheets of size A4) can continuously be fed in their longitudinal direction. As a condition of application of the bias voltage is used for charging a constant bias voltage of -600 V, which is shifted (which is superimposed) variable voltage frequency 2400 Hz for charging the surface of the image bearing element to the potential charge -600 C. Similarly, as a condition of application of a bias voltage for the display uses a fixed bias voltage of -450 V, which is shifted alternating voltage with a frequency of 2400 Hz. To ensure that potential exposure -150 In on the raw image element, the amount of laser radiation is set to 2.4 MJ/m2.

Is determined by the contrast manifestations as the difference between the DC component of the bias voltage for the manifestation and potential exposure on the raw image element so that it has an appropriate value, so that the toner has a sufficient density in the part of the exposure on the raw image element. Reverse contrast as R is snasti between the DC component of the bias voltage for the manifestation and potential of the charge image bearing element is regulated to an appropriate value, to prevent this phenomenon (the veil from the developer), the developer is manifested in nestorgames the image side, causing skipping of toner on the original white part.

The toner cartridge contains 1000 g of the toner and allows the flow of 16,000 sheets with the size of the toner is 60 mg per piece. The resolution is 600 dpi, and the ratio of the modulation period, turning the laser on for a single point as the basis for creating a single point is in this case 63 NS. The recording sheets of size A4 are served in the intermittent mode sheet feeder in which the drive device of the image forming stops when printing of each single sheet. The image formation is performed in the regime of small toner using such a processing method, in which the means of image analysis to distinguish between the distribution of image signals to image processing distinguishes the field is concentrated pixels, so that the area having the size not more than 10 points × 10 points, is defined as a small area, and the area having a size not less than 11 points × 11 points, is defined as a large area.

Measuring the density of a solid black color and line width are performed using the sample image shown in Fig.9, and the measurement sample is kadie sheets. In this experiment, the utilization factor of the square bearing the image of the surface is reduced to ensure that the number of supplied sheets 1.5 times more than in the case of normal use, as the ratio of the modulation period, turning the laser on the reference time of the radiation is set at 60% for large area and 80% for small area studies course changes the density of the solid black and the line image in the case of using a small expense.

As a result, as shown in figa for course changes the density of the solid black and fig.10b for course changes the line width, it was found that as the density of a solid black color, and line width decreases with increasing number of submitted sheets. Consequently, through the use of the toner cartridge after continuous printing is measured by the ratio of the modulation period, turning on the laser and potential exposure. As a result, as shown at 11, in comparison with the course changes at the initial stage of the sheet feeder, indicated by dot line, the course changes after the sheet feeder, indicated by the solid line, shows that the potential exposure on the raw image element is increased after completion of the sheet feeder. Potential exposure does not change who I am, essentially, before and after the feed of the sheets when the ratio of the modulation period, turning on the laser is 100%, but varies at the modulation factor of close to 60%.

When the phase changes in the number of submitted sheets and potential exposure on the raw image element are investigated in relation to the solid black image was deteriorated significantly, particularly the image quality (Fig)found that the potential exposure, essentially, varies linearly with the number of received sheets. In other words, it is shown that the characteristics of the document bearing the image of the item for the toner cartridge is changed in the test paper.

This change of characteristics of the document bearing the image of the item, as it is known, can be attributed to changes in the thickness of the photosensitive layer. Further, because the change of the thickness of the photosensitive layer varies depending on the number of submitted lists, the potential exposure on the raw image element is also changed depending on the number of submitted sheets. In addition, changes in density of solid black in the ratio of the modulation period, turning on the laser, which deteriorates significantly (figa) by 60% for the reference time of the radiation, EIT is sustained fashion degree change as reduce potential exposure on the raw image element. Therefore, the above changes represent a problem inherent in occasion of application of the regime of small flow rate, when the image processing, the amount of toner varies with the reduction ratio of the modulation period, turning on the laser, and no small expense, and the change of potential exposure on the raw image element, i.e. the change of the image density of a solid black or a change in line width is on the level at which, essentially, no problem.

Change the thickness of the photosensitive layer varies depending on the number of submitted sheets, as described above. However, the relationship between the number of received sheets, and changing the thickness of the photosensitive layer varies depending on the conditions of the sheet feeder, such as intermittent sheet feeding or continuous feeding of sheets. This is because the change of the thickness of the photosensitive layer mainly depends on the time of application of a bias voltage for charging bias voltage for development. For this reason, in this experiment, the sheet feeding is performed in an intermittent mode in which the sheet feeding stops on every single sheet. In intermittent mode, the bias voltage for the charge and the bias voltage for the manifestation of applied n is only during the period of the sheet feeder, but also during processing prevrasheniya and processing potvrdenia, this quickly wears out the photosensitive layer during the test. For example, when comparing the potentials of exposure (Fig) on the raw image element in the case of intermittent feeding of sheets having a greater rate of wear of the photosensitive element, and in case of continuous supply of sheets having a lower rate of wear, I found that the change of potential exposure relative to the number of submitted sheets during the continuous sheet feeding is more moderate than in the case of intermittent feed of the sheets.

Therefore, in relation to changes in the thickness of the photosensitive layer carrying the image of the item compared to the change in the number of submitted sheets, it is desirable to apply the value of the currency bearing the image of the item (usable image bearing member), which is the amount of time the application of a bias voltage to charge, multiplied by the contribution factor in the wear of the photosensitive layer, and a rotation time of carrying the image of the item multiplied by the contribution factor in the wear of the photosensitive layer. In this embodiment, applies the value of the currency bearing the image of the item associated with the thickness of the light is chuvstvitelnaja layer carrying the image of the item.

Load bearing the image of the item is calculated by the following equation:

W=a × Pt+b × Dt,

where W is the load bearing the image of the item; Pt - time (period) application of a bias voltage for charging; Dt - time (period) of rotation of the image bearing element; and a and b are the coefficient of the contribution in relation to changes in the thickness of the photosensitive layer.

In this embodiment, a=1 and b=0.5 in. Next, Pt and Dt are shown in Fig. In the case of intermittent sheet feeding time of application (or rotation) represents the sum of the time prevrasheniya, time sheet entry and time potvrdenia. In the case of continuous sheet feeding time of application (rotation) represents the sum of the time sheet entry and the interval between feeding of the sheet, so as not met prevrashenie and post rotation.

On Fig shows the relationship between the number of received sheets and usability (W) bearing the image of the item in cases of intermittent sheet feeder (faster wear) and a continuous sheet feeder (lower rate of wear).

In this embodiment, is applied in an intermittent mode sheet feeder.

First investigated the ratio of the modulation period, turning on the laser needed to ensure potential exposure -200 In on the raw image cell battery (included) is those when a solid black image has a density of not less than 1.4 at a given usage (W) bearing the image of the item.

In this embodiment, measurements are performed every 5000 sheets. As a result, the coefficients of the modulation period, turning on the laser to get potential exposure image bearing element -200 In, enabling to obtain the changes of the density of a solid black 1.4 or above, shown in Fig, which shows the coefficients of the modulation period, turning on the laser in the range of usability bearing the image of the item from 0 to 121200. Load bearing the image of the item (usable drum) is not the number of received sheets, as it is, but represents the above-described load (W) bearing the image of the item.

By switching ratio of the modulation period, turning on the laser, depending on the usability of the drum in accordance with a result you can make the change in line width uniform, similar to the density of a solid black color.

The changes of the density of solid black and the changes in line width are investigated with actual test sheet feeder through the use of coefficients of the modulation period, turning on the laser, providing the resulting density with the falling black is not less than 1.4. In this test sheet feeder installed six conditions 0-5 imaging (Fig), which corresponds to the usability of the drum (usability bearing the image of the item) 0,37750 (corresponds to the number of received sheets 5000), 75500 (corresponding to 10,000 pages), 113250 (corresponds to 15000 sheets), 15100 (corresponding to 2000 sheets) and 181200 (corresponds to 25,000 sheets), respectively. The ratio of the modulation period, turning on the laser is switched in such times, when the load (W) of the drum reaches appropriate levels. The relationship between the conditions of image formation, the levels of usage of the drum and the coefficients of the modulation period, turning on the laser shown in Fig.

In the switching ratio of the modulation period, turning on the laser, depending on usage (W) of the drum (figa) stroke density changes when switching is not performed, gradually changes (decreases), as indicated by dot line. When switching is carried out, the changes of density is stable, as indicated by the solid line. Similarly, the line width (fig.18b) it is possible to ensure stable speed change through the implementation of the switch.

However, the variability in the cartridges includes not only the change in the wear rate of metaconstitutional layer, but also the aberration characteristics of the light carrying the image of the item. Therefore, on the basis of the characteristics sensitivity (normal sensitivity) bearing the image of the item used in the above test, in which the ratio of the modulation period, turning on the laser is switched depending on usage (W) of the drum, the relationship between the ratio of the modulation period, turning on the laser and potential exposure carrying the image of the item is assessed in relation to the image bearing element having a high sensitivity (referred to as "sensitive image bearing element, and bearing the image of an element having a low sensitivity (referred to as "less sensitive image bearing element).

The results are shown in Fig. In comparison with the curve indicated by a solid line for carrying the image of the item with normal sensitivity, the curve indicated by dotted line ("SENSITIVE") for sensitive bearing the image of the item moves down. On the other hand, the curve indicated by alternate long and short dashed lines ("LESS SENSITIVE") for the less sensitive image bearing element, is moved upwards.

Next, what redstem use the tool to switch the modulation factor of the period of turning on the laser, depending on usage (W) of the drum, the changes of the density of solid black and the changes the line width measured in relation to the sensitive and insensitive bearing the image elements in the formation of the image, are identical to those described above.

The results are shown in figa for course changes the density of the solid black and fig.33b for course changes the line width. The solid line represents the changes to sensitive image bearing element, and the dotted line represents the changes for the less sensitive image bearing member. The density of a solid black color and line width for sensitive image bearing element (solid line) are at higher levels relative to the target density of a solid black (=1,4) and the target line width (=170 μm), but at levels that do not create problems. On the other hand, for the less sensitive image bearing element (dotted line) they are at lower levels relative to the target density of a solid black color and line width, thus resulting in deterioration of image quality.

As the changes of the density of a solid black color, and the speed change line width is essentially constant relative usage (W) the drum is detected that the time and the interval of the switching ratio of the modulation period, turning on the laser does not create problems.

To prevent the change of the course of change of the density of a solid black color and stroke width change of line, even when changing the sensitivity of the image bearing element, examines the ratio of the modulation period, turning on the laser, depending on the usability of the drum.

The results are shown in figa for sensitive image bearing element and fig.34b - for the less sensitive image bearing element, which shows the optimum ratios (%) of the modulation period, turning on the laser relative to the reference time of the radiation.

In relation to the sensitive bearing the image of the item (figa) the values of the coefficients of modulation in terms of usability (W) drum from 75500 to 15,100 identical values when conditions 0-2 image processing for carrying the image of the item with normal sensitivity (Fig). In relation to the less sensitive image bearing element shown in fig.34b, the values of the coefficients of modulation in terms of usability (W) drum from 0 to 75500 identical values when conditions 2-4 image processing for carrying the image of the item (Fig).

Based on these results (Fig, 34a and 34b), it is possible to prepare a single table switching conditions for image processing, including changes in sensitivity the spine bearing the image of the item (Fig), listing numbers (ID number (EID)) to denote the relevant conditions of image processing.

If a table is used, switching, it is necessary to select an appropriate processing condition of the image based on the sensitivity of the image bearing element and the usability of the drum.

Therefore, in this embodiment, depending on the usability of the drum used toner cartridge switch means (template image analysis) to distinguish between the distribution of the image signal and the modulation factor of the period of turning on the laser, and threshold information for the implementation of the switch and the values of symbols (each for designating a corresponding combination of the template image analysis and factor modulation period include laser) are compared with each other and stored in the storage device installed in the cartridge.

The reason why selects the template image analysis depending on the usability of the drum, is as follows.

If you increase the usability of the drum.

If you increase the usability of the drum sensitivity of the image bearing element gradually becomes insensitive. While the image quality deteriorates in some cases, when large quantities ISOE is isremote bearing the image of the item when the ratio of the modulation period, turning on the laser is changed on the basis of a decision that is identical to the focused pixel is a large area of the image. By switching the template image analysis depending on the usability of the drum can effectively reduce the amount of toner in some cases, without compromising image quality.

The storage device installed in the cartridge, is described with reference to Fig, which shows a diagram of the conceptual representation of the region (zone) 2801 storage storage devices used in this embodiment.

Region 2801 storage, for example, divided by the area 2802, which stores the set values of the processing required to form the image, the region 2803 for storing information of the background sheet feeder, which increases depending on the operation of the sheet feeder, and the region 2804, which stores unique information of the cartridge.

The set values of the processing stored in the field 2801 include values 2805, which are switched using, and values 2806, which are constant for some cartridges.

In the area of the set 2805 processing are stored threshold 2807, such as the number of sheets to switch and to icesto spins and set values 2808 processing switch.

Is provided with sufficient storage area, so the area 2803 for storing data of the number of rotations of the image bearing element and the number of received sheets, generated as a result of use of the cartridge, may be sufficient to store the maximum available values.

In this embodiment, in the storage area of the storage device installed in the cartridge (Fig), stores threshold information for switching conditions for forming the image and values refer to the installation conditions of formation of the image) for image formation, are subject to switch.

Threshold information for switching conditions for forming the image is stored, for example, in the field 2802 storage (memory) (Fig), and the corresponding values denote (ID) for formation of image is also stored in the field 2802 storage (Fig).

These stored values, for example, shown in figa for sensitive image bearing element and fig.35b - for the less sensitive image bearing member. The threshold information and the values of the symbols are mapped to each other.

The data shown in figa must be stored in a storage device of granniecollege for sensitive image bearing element, and the data shown in fig.35b should be stored in the storage area of the storage device cartridge for the less sensitive image bearing member.

By the way, the value of usability (W) drum, calculated by the above equation, is updated and stored in the field 2803 (Fig) storage device, and information is read out and compared with the threshold information stored in the field 2807 storage devices. Based on this result, can be carried out in the moments of time when the load of the drum reaches the threshold information.

As data for the calculation of the usability (W) the drum can be used time Pt application of a bias voltage to the charge and the time Dt of rotation of the drum, which is updated and stored in the field 2803 storage device, and the coefficients (the contribution) a and b, which are stored in the field 2804 storage device.

In relation to the sensitivity of the image bearing element is measured sensitivity of each batch or every day at the production stage, so that you can save information about the sensitivity of the image bearing element based on the corresponding measurement result.

The sequence of operations management in the regime of small amount of toner used this option to implement the Oia is described with reference to figures 1 and 19.

Together with the instruction of printing the image information is sent from a computer connected to the printer through management begins in the printer (1901).

After the CPU 103 decides against that, if all the image information is accepted (1902), is calculated (1903) the value of the currency bearing the image of the item (the usability of the drum).

Together with the calculation of the usability of the drum controller 105 I / o communicates with the storage device installed in the cartridge, to read many portions of threshold information in the regime of small toner (1904).

The CPU 103 compares the calculated current load of the drum with the threshold information read from a storage device (1905).

As a result of comparison in the case where the threshold information coincides with the usability of the drum is determined by the value of the designation conditions for processing the image stored in Association with the matching threshold information (1906).

After determining the values indicate the conditions of image processing is read the many conditions for image processing stored in the storage device of the master node, located in the main unit of the image formation, to determine the conditions of image processing corresponding to a specific value hereafter the treatment (1907).

After determining the conditions of image processing are determined by the template image analysis and the corresponding ratio of the modulation period, turning the laser on each pixel for image processing (1908). Image processing is carried out in accordance with a specific focused pixel of the focused pixel having a large area (1909), concentrated pixel having a small area (1910), and other pixels, such as an empty point (1911).

After this decision (1912), is there a raw image in relation to the resulting image information. When confirmed (1913) the completion of image processing, image formation (1914).

When the image formation, a signal corresponding to the selected ratio of the modulation period, turning on the laser outputted from the CPU 103 to the controller 106 of the excitation laser for exposure to laser radiation, the photosensitive image bearing element, thus enabling the image formation (1914).

After this is done post-processing for the implementation of re-save in respect of the updated element, such as information about the usability bearing the image of the item on the basis of the background information used is ti, in the storage device.

After saving is complete (1915) all the print operation.

As described above, by storing threshold information of the switch to change the ratio of the modulation period, turning the laser on the basis of the value of usability bearing the image of the item (the usability of the drum), representing the state of usage of the toner cartridge in Association with the value denote the corresponding conditions of the image processing based on the usage of the drum, it becomes possible to implement this mode, a small amount of toner, which can save the change of potential exposure on the raw image element at a constant level on the basis of the usability of the drum as much as possible to reduce the amount of toner when the feeding of sheets to stabilize the quality of the images.

Table switching for the implementation of a comprehensive time control of laser radiation, including the management of abnormal sensitivity of the image bearing element, is stored in the storage device main unit of the image formation, and the threshold information of the switch and is denote the corresponding conditions of the image processing based on the usage of the drum is stored in the storage device, is installed in the cartridge, whereby it becomes possible to perform stable image output, as changes in the process of changing the density of the solid black and in the course of the change of line width depending on the deviation from the norm sensitivity can be maintained at a constant level for each cartridge.

In this embodiment, the prepared 9 types of image processing, but you can also increase or decrease the number of types of image processing to implement appropriate management.

In this embodiment, the value of the symbols stored in the storage device, is described as a simple numeric value that is subject to preservation, but the present invention is not limited to them.

Can be appropriately modified storage device, the time of laser radiation, the conditions of image processing to be switching threshold switching, etc.

The distribution of the image signal varies the classification of the focused pixel, which has a small area, and one that has a large area. However, it is also possible to carry out more detailed classification by performing a more specific analysis.

In this embodiment, a portion of the frame is concentrated peak of the ate is useful to add a sequence, that is not performed surgery to reduce the size of toner.

In the present invention conditions, including processing speed, resolution, ratio of the modulation period, turning on the laser, the usability of the drum, it calculated the equation, the coefficient of the contribution in relation to the thickness of the photosensitive layer used in the calculation equation, not limited to those used in this embodiment.

In this embodiment, describes a means for switching conditions of the image processing depending on the characteristics of the light carrying the image of the item. Characteristic sensitivity, however, is not limited to the sensitivity of the image bearing member. For example, also included a change in the material, which changes the characteristic of the light carrying the image of the item. According to this variant implementation becomes possible to obtain stable images, even if there is any change in the characteristics of light, including a change in the material. It becomes possible to flexibly compensate not only the change of the characteristics of high sensitivity, but also bearing the image of an element that have different speed wear, by changing the threshold the information, stored in the coefficient of modulation.

The second option exercise

In the first embodiment, based on the usability of the drum switches terms of image processing. By storing the threshold switching conditions of the image processing and the values of the symbols to select the appropriate conditions for the image processing corresponding to the threshold value switch, the corresponding image processing is performed on the basis of the usability of the drum to ensure the regime of small toner, which stabilizes the quality of the image.

In the second variant embodiment switches the processing condition of the image depending on the usability of the drum to switch the modulation factor of the period include laser similar to the first variant implementation. Then the threshold information for the implementation of the switch and one factor modulation period of turning on the laser, corresponding, as the value notation for the switching conditions of the image processing, are associated with each other and stored in the storage device. On the basis of the ratio of the modulation period, turning on the laser, selected in accordance with the threshold value, the comparison is performed with the ratio of the modulation period is and turning the laser on the conditions of image processing stored in the storage device of the master node, so that the processing condition of the image that have the same ratio of the modulation period, activate the laser is selected to complete the switch to the selected processing condition of the image.

In the subsequent explanation in this embodiment, omitting repeated explanations of the description made in the first embodiment. The results of the implementation of this option are identical to the results achieved in the first embodiment, so that also lowered their detailed description. In the first embodiment described bearing the image elements having different characteristics sensitivity, but in this embodiment, for explanation used only bearing the image element with normal sensitivity (response speed).

Similar to the first variant of implementation, the ratio of the modulation period, turning on the laser in this embodiment refers to the correlation time of a laser beam on a single point. Further, as described in the first embodiment, the tool (template image analysis) to distinguish between the size (distribution) of the region is concentrated pixel image information is a means for detecting the degree of con is entrale pixels, such as an area having a size of 11 points × 11 points. The processing condition of the image represents the condition for changing the ratio of the modulation period, turning on the laser, depending on the degree of concentration of pixels defined on the basis of the template image analysis.

Method for storing information in the storage device provided in the main cartridge in this embodiment is described with reference to Fig.

On Fig in the storage area for storing threshold information in the storage device stores threshold information 2201 corresponding to the usability of the drum. The ratio of the modulation period 2202 enable laser similarly stored in a storage area different from a storage area to store threshold information in the storage device. In this embodiment, the switching is carried out five times, similarly to the first variant implementation, so that is five servings threshold information and five pieces of information about the ratio of the modulation period, turning on the laser. In this embodiment, information on the ratio of the modulation period, turning on the laser, store, represents information on the coefficient of modulation used in the case when the region is concentrated pixels more concentrated area of the pixel is of a certain size.

The processing to determine the conditions of image processing using the storage device host device imaging and storage devices cartridge is described with reference to Fig.

On Fig many conditions 2302 image processing (for example, five conditions 1-5 image processing) is stored in the device 2301 storage host device imaging, to perform the optimum image formation on the basis of the usability of the drum.

In the device 2301 storage master node as conditions 2302 image processing uses templates 2303 image analysis (templates 1-5) for the control period activate the laser for each pixel, the corresponding value of each pixel (the size of the area is concentrated pixels), the coefficients of the modulation period 2304 enable laser (MD a-e) in the case where the scope of the focused pixel is determined as a pixel of a large area, and the coefficients of the modulation period 2305 enable laser (MD) in the case where the scope of the focused pixel is determined as the pixel small area.

The coefficients of the modulation period, MDa-MDe activate the laser (for large pixel area) are different from each other. The other coefficients of the modulation period, turning on the laser, different from those of the pixel large areas and, can be the same or different depending on the respective conditions of image processing.

In the device 2307 storage installed in the cartridge, stored values of the usability of the drum as the threshold information 2308 (TH1-5) for the implementation of the switch and the coefficients of the modulation period 2309 enable laser (MD1-5), which are the optimum values for pixels in a large area, the respective threshold values.

In the case when the printing operation and usage of the drum changes and reaches a threshold stored in the storage device of the cartridge, the information about the modulation factor of the value of the symbols stored in Association with the threshold value, is read by the CPU 2310 in the main node (2311) devices form the image.

For example, when the load of the drum reaches the threshold value 3 (TN), factor 3 modulation is a modulation factor of the period of turning on the laser in the case when the scope is focused pixel is determined as a pixel of a large area.

Through the use of factor 3 modulation CPU 2310 device imaging establishes communication with the device 2311 (2312) storing the master node and compares it to the coefficients of the modulation period flucticasone for pixels in a large area in terms of the image processing device storing the master node, thus removing the matching coefficient modulation.

For example, assuming that the coefficient d modulation of the coefficients a-e modulation coincides with the modulation ratio 3, pattern 4 image analysis is defined as a condition of image processing, including modulation factor d.

The image formation is carried out in accordance with a particular processing condition of the image.

Concrete option implementation is described with reference to Fig.

In the device 3601 storage cartridge is read and obtained the threshold information 3602. When the usability of the drum unit imaging is defined as the value of at least 37750 and less 75500, the corresponding ratio of the modulation period 80 (3603) enable laser is obtained as the value of the symbols stored in the storage device of the cartridge. The resulting factor of 80 modulation is compared with the coefficients of the modulation period 3605 activate the laser for pixels in a large area, stored in the device 3604 storage master node, whereby retrieves the matching coefficient modulation. When it is determined by matching the coefficient of modulation selected template 2 image analysis, which includes matching the coefficient of modulation, the modulation factor of 80 for large pixel area is and the coefficient of 60 modulation of the pixel small area, and based on their processing of the image.

The read operation from the storage device when the control (Fig) is performed by the controller 104 I / o (1), and the comparison is performed by the CPU 103 (or the CPU 2310, Fig). Next, image processing is performed by the controller 105 of the image processing.

The sequence of operations management in the regime of small amount of toner used in this embodiment is described with reference to figure 1 and 24.

Together with the instruction of printing the image information is sent from a computer connected to the printer through management begins in the printer (2401).

After the CPU 103 decides whether the whole of the image information is accepted (2402), calculates the amount of usability bearing the image of the item (the usability of the drum) (2403).

Together with the calculation of the usability of the drum controller 105 I / o communicates with the storage device installed in the cartridge, to read many portions of threshold information in the regime of small toner (2404).

The CPU 103 compares the calculated current load of the drum with the threshold information read from a storage device (2405).

As a result of comparison in the case where the threshold information coincides with the usability of the drum is determined by the ratio of the modulation period 2406 activate the laser for the large area pixel as the value of the designation, stored in Association with the matching threshold information (2407).

After determining the ratio of the modulation period, turning the laser on, the CPU 103 compares the ratio of the modulation period, turning the laser on for a pixel of a large area, a variety of processing conditions of the image stored in the storage device of the master node, located in the main unit of the image formation, with the ratio of the modulation period, turning on the laser, obtained from a storage device, for determining the conditions for the processing of images having matching coefficient modulation period include laser (2408).

By determining the conditions of image processing are determined by the template image analysis and the corresponding ratio of the modulation period, turning the laser on each pixel to the image processing controller 105 of the image processing (2409). Image processing is carried out (2413) in accordance with a specific focused pixel of the focused pixel having a large area (2410), concentrated pixel having a small area (2411), and other pixels, such as an empty point (2412).

After this decision in relation to whether the raw image in relation to the resulting image information (2414). When confirmed by soversheni the image processing (2415), by the formation of the image (2416).

When the image formation, the exposure laser light carrying the image of the item is carried out with the ratio of the modulation period, turning on the laser, corresponding to the selected ratio of the modulation period, turning on the laser, to form the image.

After this is done post-processing for the implementation of re-save the updated item, such as information about the usability bearing the image of the item on the basis of information of the history of usage of the storage device.

After saving is complete, all the print operation (2417).

As described above, by storing threshold information of the switch to change the ratio of the modulation period, turning the laser on the basis of the value of usability bearing the image of the item (the usability of the drum), representing the state of usage of the toner cartridge in Association with the ratio of the modulation period include laser as values indicate conditions of image processing based on the usage of the drum, it becomes possible to implement this mode, a small amount of toner, which can support the change of potential exposure on the raw image e is emente at a constant level on the basis of the usability of the drum as much as possible to reduce the amount of toner when the operation of the sheet feeder (based on the usability of the drum) in order to stabilize the image quality.

In this embodiment, used 5 types of image processing to be switching, and 5 threshold switch, but the invention is not limited to this only.

Image processing is performed by the classification of the focused pixel in the pixels, which have a small area, and the pixels that have a large area. However, it is also possible to carry out different classification by performing a more specific analysis.

In this embodiment, a portion of the frame is concentrated pixel effective to add a sequence that is not the operation was performed to reduce the amount of consumption of toner.

In the present invention conditions, including processing speed, resolution, ratio of the modulation period, turning on the laser, the usability of the drum, it calculated the equation, the contribution factor in the ratio of the thickness of the photosensitive layer used in the calculation equation, not limited to those used in this embodiment.

In this embodiment, uses the ratio of the modulation period, turning the laser on for a pixel of a large area, but can also be for a small pixel area. In this case also on sciatica similar effect.

In addition, the change of the template image analysis depending on the usability of the drum (as in the first embodiment) is an effective tool.

In the same way as in the first embodiment, it is also possible to carry out such a control that the calculated load of the drum and the information stored in the storage device installed in the cartridge, and read together with the threshold information (Fig).

A third option exercise

In this embodiment, the ratio of the modulation period, turning on the laser is switched depending on the usability of the drum, and together with the threshold information to perform a switching many different values denote the coefficients of the modulation period, turning on the laser, depending on the distribution of the image signal for each pixel is stored in Association with it in the storage device.

In this embodiment, are omitted repetitive explanation concerning the description given in the first embodiment. The effect of this variant implementation is identical to the effect achieved in the first embodiment, so the detailed description is also omitted. In the first embodiment described bearing the image elements having different characteristics is IKI sensitivity, but in this embodiment, for explanation used only bearing the image element with normal sensitivity (response speed).

Similar to the first variant of implementation, the ratio of the modulation period, turning on the laser in this embodiment refers to the correlation time of a laser beam on a single point. Further, as described in the first embodiment, the tool (template image analysis) to distinguish between the size (distribution) of the region is concentrated pixel image information is a means for detecting the degree of concentration of pixels, such as an area having a size of 11 pixels × 11 pixels. The condition of the image processing condition is to change the ratio of the modulation period, turning on the laser, depending on the degree of concentration of pixels defined on the basis of the template image analysis.

Method for storing information in the storage device provided in the main cartridge in this embodiment is described with reference to Fig.

In the area for storing threshold information in the storage device stores threshold information 2501 corresponding to the usability of the drum. The ratio of the modulation period 2502 enable laser similarly stored in the storage area of the personal from the storage area for storing threshold information in the storage device.

In this embodiment requires two types of coefficients of the modulation period, turning on the laser, stored in the storage device. The modulation coefficients include coefficients 1-5 (2503) modulation in the case where the scope of the focused pixel is determined as a pixel of a large area, and the coefficients 1'-5' (2504) modulation in the case where the scope of the focused pixel is determined as the pixel small area. For this reason, two storage areas for storing respective types of modulation coefficients provided in the storage device, and two types of modulation coefficients are stored in the respective storage areas, respectively.

In this embodiment, the switching is carried out five times, similarly to the first variant implementation, so that saved five servings threshold information and five pieces of information about the ratio of the modulation period, turning on the laser.

Mode small amount of toner used in this embodiment is described with reference to Fig.

On Fig templates image analysis used in the method of image processing is stored in the device forming the image.

In this embodiment, uses a tool that is used to distinguish the size of the area is concentrated pixels set signal the image and includes the template image analysis to identify areas of concentrated pixels as a pixel of a large area and the template image analysis to identify areas of concentrated pixels as a pixel small area.

In the device 2601 storage installed in the cartridge, the usability of the drum, you want to switch, is stored as the threshold information 2602 to implement the switching. In the device 2601 storage are two types of coefficients of the modulation period, turning on the laser, the respective threshold values, which includes the coefficients 2603 modulation for the large area pixel and the coefficients 2604 modulation of the pixel small area.

In the case when the printing operation, and the usability of the drum varies and reaches a threshold stored in the storage device of the cartridge, the information about the modulation factor of the value of the symbols stored in Association with the threshold value is read using the CPU 2606 in the main unit of the image formation.

On the basis of the coefficient of modulation received from the storage device of the cartridge, the image formation is carried out using tools 2608 to distinguish between size (distribution) of the region is concentrated pixels of the image information stored in the device 2607 main storage unit, and sets the coefficients of the modulation period, turning on the laser, stored in the storage device.

Concrete option implementation, the value of this device is described with reference to Fig.

In the unit 3701 of the storage cartridge is stored threshold information 3702 and read information from it. If the usability of the drum unit imaging is determined by the CPU as a value not less than 37750 and less 75500, we obtain the ratio of the modulation period 80 (3703) activate the laser for the large area pixel and the ratio of the modulation period of 60 activate the laser for the small area pixel. By using the resulting coefficients of the modulation period, turning on the laser, template 3705 image analysis for large pixel region and the template 3706 image analysis for small pixel area is image processing.

The read operation from the storage device when the control shown in Fig, is performed by the controller 104 I / o (figure 1) and the comparison is performed by the CPU 103 (or CPU 2606, Fig). Image processing is performed by the controller 105 of the image processing.

The sequence of operations management in the regime of small amount of toner used in this embodiment is described with reference to figure 1 and 27.

Together with the instruction of printing the image information is sent from a computer connected to the printer through management begins in the printer (2701).

After the CPU 103 decides whether all inform whether the information about the image is accepted (2702), calculates the amount of usability bearing the image of the item (the usability of the drum) (2703).

Together with the calculation of the usability of the drum controller 105 I / o communicates with the storage device installed in the cartridge, to read many portions of threshold information in the regime of small toner (2704).

The CPU 103 compares the calculated current load of the drum with the threshold information read from the storage device (2405).

As a result of comparison in the case where the threshold information coincides with the usability of the drum, the set of coefficients of the modulation period, turning on the laser, stored in Association with the matching threshold information is read by the controller 104 I / o (2706).

Regarding the coefficients of the modulation period, turning the laser on the ratio of the modulation period, turning the laser on for another large area pixel and the ratio of the modulation period, activate the laser for the small area pixel is read depending on the threshold information. After receiving the information about the modulation depth is determined by the processing condition of the image with the template image analysis, to be preserved in the main unit of the image formation (2708).

In the result of the condition determination processing of the image determine the I template image analysis and the corresponding ratio of the modulation period, turning the laser on each pixel for the implementation of the image processing controller 105 (2709) image processing. Image processing is carried out (2713) in accordance with a specific focused pixel of the focused pixel having a large area (2710), concentrated pixel having a small area (2711), and other pixels, such as an empty point (2712).

After this decision in relation to whether the raw image in relation to the resulting image information (2714). If confirmed by the completion of image processing (2715), by the formation of the image (2716).

When the image formation, the exposure laser light carrying the image of the item is carried out with the ratio of the modulation period, turning on the laser, corresponding to the selected ratio of the modulation period, turning on the laser, to perform image formation (2716).

After this is done post-processing for the implementation of re-save in respect of the updated element, such as information about the usability bearing the image of the item on the basis of information of historical usage, in the storage device.

After saving is complete, all the print operation (2717).

As described above, by storing threshold information of the switch to change the coefficient is odulele period turning the laser on the basis of the value of usability bearing the image of the item (the usability of the drum) representing the state of usage of the toner cartridge in Association with the set of coefficients of the modulation period, turning on the laser, it becomes possible to implement this mode, a small amount of toner, which can support the change of potential exposure on the raw image element at a constant level on the basis of the usability of the drum as much as possible to reduce the amount of toner when the feeding of sheets to stabilize the image quality.

In the case where the characteristic speed is outside of the estimated coefficients, as in the first embodiment, in some cases, the ratio of the modulation period, turning on the laser can be changed only in the range that is stored for this reason, in the storage device main unit. However, in this embodiment, it becomes possible to obtain a stable image, regardless of the characteristics of the light carrying the image of the item by storing the individual coefficients of the modulation period, turning on the laser.

In this embodiment, used 5 types of image processing to be switching, and 5 threshold switching, but this invention is not limited.

Image processing of the OS is done through the classification of the focused pixel to those which have a small area and large area. However, it is also possible to carry out more detailed classification by performing a more specific analysis.

In this embodiment, a portion of the frame is concentrated pixel effective to add a sequence that is not the operation was performed to reduce the amount of consumption of toner.

In this embodiment, tool is used for the immediate preservation of the ratio of the modulation period include laser as the value of the symbols to be stored together with the threshold information storage device of the cartridge, but the means used in the present invention is not limited to them.

In the present invention conditions, including processing speed, resolution, ratio of the modulation period, turning on the laser, the usability of the drum, it calculated the equation, the coefficient of the contribution in relation to the thickness of the photosensitive layer used in the calculation equation, not limited to those used in this invention.

In this embodiment, all the coefficients of the modulation period, turning on the laser used in the method of processing the image stored in the storage device. However, as described in the second embodiment, i.e. the measures information about the coefficients of the modulation period, turning on the laser, stored in the storage device, includes the ratio of the modulation period, activate the laser for the large area pixel and the ratio of the modulation period, activate the laser for the small area pixel, and the modulation coefficients for the other pixels are stored in Association with a modulation factor of a pixel at the small area in the storage device main unit of the image formation. Thus, such a method in which the modulation factor for other pixels is determined from the ratio of the modulation of the pixel small area, is effective to obtain a similar effect.

In addition, this embodiment describes the use of a single template image analysis in terms of image processing, but it is also possible to perform switching of multiple templates, image analysis by storing them in the storage device of the master node in Association with a modulation factor of a pixel at a large area.

Further, just as in the first embodiment, it is possible to perform such control that the calculated load of the drum and the information stored in the storage device installed in the cartridge, and read together with the threshold information (Fig).

every option exercise

In this embodiment, the ratio of the modulation period, turning on the laser is switched depending on the usability of the drum, and together with the threshold information to perform a switching value notation to denote the template image analysis to determine the various coefficients of the modulation period, turning on the laser, depending on the distribution of the image signal for each pixel, and values of symbols to denote the coefficients of the modulation period, turning on the laser are stored in Association with them in the storage device.

In the following description of this variant implementation omitted repetitive explanation concerning the first variant implementation. The effect of this variant implementation is identical to that achieved in the first embodiment, so that detailed description is omitted. In the first embodiment described bearing the image elements having different characteristics sensitivity, but in this embodiment, for explanation used only bearing the image element with normal sensitivity (response speed).

Like the first variant implementation, the ratio of the modulation period, turning on the laser in this embodiment Khujand the conduct relates to time in relation to the laser radiation at a single point. As described in the first embodiment, the tool (template image analysis) to distinguish between the size (distribution) of the region is concentrated pixels image information relates to the means for detecting the degree of concentration of pixels, such as a region having a size of 11 points × 11 points. The condition of the image processing refers to the condition for changing the ratio of the modulation period, turning on the laser, depending on the degree of concentration of pixels defined on the basis of the template image analysis.

Method for storing information in the storage device provided in the main cartridge in this embodiment is described with reference to Fig.

In the area for storing threshold information in the storage device is stored threshold information 2901 corresponding to the usability of the drum. The ratio of the modulation period 2902 enable laser similarly stored in a storage area different from a storage area to store threshold information in the storage device.

However, in this embodiment, the ratio of the modulation period, turning on the laser directly stored as its value notation.

In this embodiment, the ratio of the modulation period, turning on the laser, stored in the storage device, the performance is to place a modulation factor in the case, when the focused pixel is determined as a pixel of a large area.

In this embodiment, the switching is carried out five times, similarly to the first variant implementation, so that saved five servings threshold information and five pieces of information about the ratio of the modulation period, turning on the laser.

The process of determining the conditions of image processing using the storage device host device imaging and storage devices cartridge is described with reference to Fig.

On Fig many different patterns of image analysis used in the method of image processing is stored in the device 3001 storage master node in the device forming the image. For the corresponding template image analysis are assigned the corresponding values 3003 ID to identify patterns of image analysis. Analysis templates image stored in the storage device includes a set of two types of templates, image analysis, including pattern 3004 image analysis to identify areas of concentrated pixels as a pixel of a large area, and the pattern 3005 image analysis to identify areas of concentrated pixels as pixel small area.

Regardless of these sablone the image analysis two types of coefficients of the modulation period, turning on the laser, includes the coefficients of the modulation period 3006 turning the laser on for a pixel of a large area, and the coefficients of the modulation period 3007 activate the laser for the small area pixel, are stored in Association with each other.

In the device 3009 storage installed in the cartridge, the usability of the drum to be saved, is saved as the threshold information 3010 to implement the switching. In the device 3009 storage values are stored 3011 signs and the coefficients of the modulation period 3012 activate the laser, the corresponding threshold values.

In the case when the printing operation, and the usability of the drum changes and reaches a threshold stored in the storage device of the cartridge, get the value 3011 denote the template image analysis and the ratio of the modulation period, turning on the laser, stored in Association with the threshold value.

Depending on the values refer to template analysis of the image read from the storage device of the cartridge, the storage device host device imaging determined the optimal template image analysis for the usability of the drum, which includes a template image analysis for large pixel area and the template image analysis for the small area pixel.

In zavisimost and from the ratio of the modulation period, turning on the laser, received from a storage device of the cartridge, the comparison is made between the ratio of the modulation period include laser read from the storage device of the cartridge, and the ratio of the modulation period, turning the laser on for a pixel of a large area in the storage device host. If these coefficients modulation coincide with each other, is determined by an associated coefficient modulation period activate the laser for the small area pixel.

Through the use of the resulting ratio of the modulation period, turning on the laser, and the resultant pattern of image analysis by the formation of the image.

Its specific implementation is described with reference to Fig.

In the device 3801 storage cartridge is read threshold information. When the usability of the drum unit imaging is defined as the value of at least 37750 and less 75500, the result is a value of "2" (3803) identification to denote the corresponding template image analysis. At the same time it turns out (3804) the corresponding ratio of the modulation period 80 turning the laser on for a pixel of a large area. Table 3806 templates image analysis device 3805 main storage site information at least 13 points × 13 points in the template image analysis DL the pixel large area is obtained on the basis of the result values (3809) identification. Similarly, as a template image analysis for the small area pixel obtained information less than 13 points × 13 points. By comparing the ratio of the modulation period include laser for large pixel area ratio 3810 in table 3809 coefficients modulation is obtained the ratio of the modulation period 3811 activate the laser for the small area pixel associated with a matching ratio of the modulation period, turning on the laser. In this case, the ratio of the modulation period of 60 turning the laser is obtained for the small area pixel.

By using the above template, image analysis and coefficients of the modulation period, turning on the laser processing of the image.

The read operation from the storage device when the control shown in Fig, is performed by the controller 104 I / o (1), and is compared by the CPU 103 (or CPU 2606 Fig). Image processing is performed by the controller 105 of the image processing.

The sequence of operations management in the regime of small amount of toner used in this embodiment is described with reference to figure 1 and 31.

Together with the instruction of printing the image information is sent from a computer connected to the printer through management begins in the printer (3101).

After the CPU 103 decides whether the whole of the image information is accepted (3102), calculates the amount of usability bearing the image of the item (the usability of the drum) (3103).

Together with the calculation of the usability of the drum controller 105 I / o communicates with the storage device installed in the cartridge, to read many portions of threshold information in the regime of small toner (3104).

The calculated current load of the drum and the threshold information read from the storage device are compared with each other (3105).

As a result of comparison in the case where the threshold information coincides with the usability of the drum, determine the value (3106) denote the template image analysis and the ratio of the modulation period (3107) turning the laser on for a pixel of a large area in Association with the matching threshold information.

From the resulting values refer to t is obtained template (3108) image analysis, appropriate usage of the drum.

From the resulting ratio of the modulation period, turning on the laser turns (3109) the ratio of the modulation period, activate the laser for the small area pixel.

Therefore, image processing is performed by the controller 105 (3114) image processing in accordance with a particular with osentrylinenum pixel of the focused pixel, having a large area (3111), concentrated pixel having a small area (3112), and other pixels, such as an empty point (3113).

Then a decision is made regarding whether the raw image relative to the resulting information (3115) image. When confirmed (3116) completion of image processing is carried out (3117) forming the image.

When the image formation, the exposure laser light carrying the image of the item is carried out with the ratio of the modulation period, turning on the laser, corresponding to the selected ratio of the modulation period, turning on the laser, to form (3117) image.

After this is done post-processing for the implementation of re-save in respect of the updated element, such as information about the usability bearing the image of the item on the basis of information about the history of usability, in the storage device.

After saving is complete (3118) all the print operation.

As described above, by storing threshold information of the switch to change the ratio of the modulation period, turning the laser on the basis of the value of usability bearing the image of the item (the usability of the drum), representing the status is of the usability of the toner cartridge, in Association with the ratio of the modulation period include laser as values indicate conditions of image processing based on the usage of the drum, it becomes possible to implement this mode, a small amount of toner, which can support the change of potential exposure on the raw image element at a constant level on the basis of the usability of the drum as much as possible to reduce the amount of toner when the operation of the sheet feeder (based on the usability of the drum) to stabilize the quality of the images.

In this embodiment, used 5 types of image processing to be switching, and 5 threshold switching, but this invention is not limited.

Image processing is performed by the classification of the focused pixel in the pixels, which have a small area, and the pixels that have a large area. However, it is also possible to carry out more detailed classification by performing a more specific analysis.

In this embodiment, a portion of the frame is concentrated pixel effective to add a sequence that is not the operation was performed to reduce the amount of consumption of toner.

In the present invention conditions, including SC is the speed of processing, the resolution ratio of the modulation period, turning on the laser, the usability of the drum, it calculated the equation, the coefficient of the contribution in relation to the thickness of the photosensitive layer used in the calculation equation, not limited to those used in this embodiment.

In this embodiment, uses the ratio of the modulation period, turning the laser on for a pixel of a large area, but can also be for a small pixel area or the other pixels. In this case, can also achieve a similar effect.

In addition, this embodiment describes the use of a single value notation to denote the template image analysis in terms of image processing, but, in addition, is effective storing multiple bits of information, for example, the template image analysis for the large area pixel and the value of symbols to determine the pattern of image analysis for the small area pixel.

In this embodiment, the ratio of the modulation period enable laser is used as the value of the symbols stored in the storage device, but a similar effect can be achieved through any information provided that it represents the value notation to denote the coefficient of the module the AI period of turning on the laser.

Further, like the first variant implementation, it is also possible to carry out such a control that the calculated load of the drum and the information stored in the storage device installed in the cartridge, and read together with the threshold information, as shown in Fig.

The above control methods in the embodiments from the first to the fourth implementation relate to the mode of the small amount of toner, thus they are not applicable to the normal formation of the image.

In the present invention, unlike the above-described control to reduce the change of potential exposure on the raw image element (photosensitive drum) in the regime of small toner, described in four versions of the implementation, the control is such that the conditions of charge and manifestations are switched depending on the usability of the drum to keep the image quality in the normal imaging mode and a small amount of toner. Threshold values different from the values for the usability of the drum used in the four variants of implementation, are used to switch the conditions of charge and manifestations.

Although the invention has been described with reference to the structure described in this description, it is not limited to the described details.

Industrial is remenisant

As described above, according to the present invention by changing the conditions of forming the image based on the value of the currency bearing the image of the item and information to install a variety of levels of usage of the drum, it becomes possible to maintain stable image quality by reducing the amount of consumption of the developer, regardless of the usability of the drum.

By changing the conditions of forming the image based on the value of the currency bearing the image of the item and the conditions of the exposure device exposing that information to set multiple levels of usage of the drum, it becomes possible to maintain stable image quality by reducing the amount of consumption of the developer, regardless of the usability of the drum.

In addition, by changing the conditions of forming the image by selecting a template concentrated pixels to distinguish between the image recording depending on the value of the currency bearing the image of the item and information to install a variety of levels of usage of the drum, it becomes possible to maintain stable image quality by reducing the amount of consumption of the developer, regardless of the usability of the drum.

1. The image forming device is, with the first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition for the formation of the image, which is different from the first specified condition of forming images, and is set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than the value of consumption in the first mode of image formation, the device imaging provides a means of processing information intended for information processing on the image that should be formed, means storage designed to store information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item, the tool of discernment to distinguish between images of subject formation and management tool used to install the second condition of image formation in the second mode of forming the image depending on the result of the various the Oia, obtained by means of differentiation and value of the currency bearing the image of the item and the information stored in the storage medium.

2. The device according to claim 1, characterized in that the means of discernment is a means to distinguish the size of the focused pixel and used to modify the second condition of forming images, depending on whether more or less concentrated area of pixels than the template concentrated pixels having a certain size.

3. The device according to any one of claims 1 or 2, wherein the storage medium further comprises a second storage area intended for storing a variety of threshold levels of information and management tool enables you to change the second condition of forming images based on the information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item when the value of usability bearing the image element reaches a certain threshold information.

4. Device according to any one of claims 1 to 3, characterized in that it further comprises means for displaying image bearing member with the condition of operation of the exposure based on the information about the image is a preview image.

5. The device according to claim 4, characterized in that condition the operation of the display represents the time display means to display.

6. The device according to claim 5, characterized in that condition the operation of the scanner is a time exposure means exposure based on the characteristics of the sensitivity of the image bearing element.

7. The device according to any one of claims 1 or 2, characterized in that the information for setting the second condition of forming images corresponding to the multiple levels of value bearing the image of the item represents the information symbols to determine a second condition to form the image.

8. The device according to claim 3, characterized in that it further comprises means for displaying image bearing member with the condition of operation of the exposure based on image information, and information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item is a condition of the operation of the exposure means exposure.

9. The device according to claim 2, characterized in that the controller ensures that the template selection is concentrated pixels having a certain size, based on the information for the mouth of the hall the second condition of forming images, corresponding to the multiple levels of magnitude usability bearing the image of the item.

10. The device according to any one of claims 1, 2 and 9, characterized in that the image bearing element and the storage medium is executed as a unit and form a cartridge, which is installed with the possibility of removing the forming device of the image.

11. The cartridge that is installed with the possibility of removing the forming device of the image containing the means of processing information intended for information processing on the image that should be formed, and having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition for the formation of the image, which is different from the first specified condition of forming images, and set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than the first the mode of formation of the image, where the device imaging provides a means of discernment to distinguish the image is s, subject to the formation and management tool used to install the second condition of image formation in the second mode of forming the image based on the result of discernment, obtained by means of differentiation, the cartridge contains the image bearing element, the storage medium designed to store information in the cartridge and having a first storage area for storing information to be used in conjunction with information about the image, for setting a second condition to the formation of the image, depending on a variety of levels of magnitude usability bearing the image of the item in the second mode of forming the image.

12. The cartridge according to claim 11, characterized in that the storage medium additionally has a second storage area for storing multiple levels of threshold information in relation to the value of usability bearing the image of the item.

13. The cartridge according to any one of § § 11 or 12, characterized in that the said device forming an image further comprises means for displaying image bearing member, the second condition of image formation is a condition of the operation of the exposure means exposure.

14. The cartridge according to item 13, wherein the operation condition display PR is dstanley a time exposure means exposure.

15. The cartridge according to item 13, wherein the operation condition display is a time exposure means exposure based on the characteristics of the sensitivity of the image bearing element.

16. The cartridge according to any one of § § 11 or 12, characterized in that the information for setting the second condition of forming images corresponding to the multiple levels of value bearing the image of the item represents the information symbols to determine a second condition to form the image.

17. The cartridge according to any one of § § 11 or 12, characterized in that the forming device of the image further comprises a means of display, designed to document bearing the image of the item, provided the operation of the exposure based on image information, and the information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item is a condition of the operation of the exposure means exposure.

18. A storage device for installation in a cartridge that is installed with the possibility of removing the forming device of the image containing the means of processing information intended for information processing on the image which D. who should be formed, and bearing the image element, and having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition for the formation of the image, which is different from the first specified condition of forming images, and is set so that the amount of consumption of developer for identical image in the second mode of forming the image is less than the value of consumption in the first mode of image formation, thus forming device of the image contains

the tool of discernment to distinguish between the image subject to forming, and

management tool used to install the second condition of image formation in the second mode of forming the image based on the result of discernment, obtained by means of differentiation and value in usage image bearing member, a storage device includes a first storage area that is used to store information that is used together with the image information, to set a second condition the Oia image formation depending on a variety of levels of magnitude usability bearing the image of the item in the second mode of forming the image.

19. The device according to p, characterized in that the storage device additionally has a second storage area for storing multiple levels of threshold information in relation to the value of usability bearing the image of the item.

20. Device according to any one of p or 19, characterized in that the device of the image forming device further comprises display designed to display image bearing member, the second condition for the formation of the image represents information about the condition of the operation display device display.

21. The device according to claim 20, characterized in that condition the operation of the exposure is the exposure time of the device display.

22. The device according to claim 20, characterized in that condition the operation of the display represents the time display device display based on characteristics of the sensitivity of the image bearing element.

23. Device according to any one of p or 19, wherein the information for setting the second condition of forming images corresponding to the multiple levels of value bearing the image of the item represents the information symbols to determine a second condition to form the image.

24. The device according to any of the C p or 19, characterized in that the forming device of the image further comprises a means of display, designed to document bearing the image of the item, provided the operation of the exposure based on image information, and the information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item is a condition of the operation display device display.

25. A storage device for installation in a cartridge that is installed with the possibility of removing the forming device of the image containing the means of processing information intended for information processing on the image that should be formed, and contains the image bearing element and having a first mode of image formation for forming an image on the raw image member by using developer under a first predetermined condition for the formation of images and the second mode of image formation for forming an image on the raw image member by using developer under the second condition for the formation of the image, which is different from the first specified condition of image formation, and is installed so that in the guise of a flow of the developer to identical image in the second mode of forming the image is less than the amount of consumption in the first mode of image formation, thus forming device of the image contains

the tool of discernment to distinguish between the image subject to forming, and

management tool used to install the second condition of image formation in the second mode of forming the image based on the result of discernment, obtained by means of differentiation, and the value of usability image bearing member, the said storage device has a first storage area that is used to store information that is used together with the image information, for setting a second condition to the formation of the image, depending on a variety of levels of magnitude usability bearing the image of the item in the second mode of forming the image, and the information for setting the second condition of image formation represents information that is used in the second mode of forming the image, but not used in the first mode of forming the image.

26. The device according A.25, characterized in that the storage device additionally has a second storage area for storing multiple levels of threshold information in relation to the value of usability carrying the image is of lament.

27. Device according to any one of p or 26, characterized in that the device of the image forming device further comprises display designed to display image bearing element, and a second condition for the formation of the image represents information about the condition of the operation display device display.

28. The device according to item 27, wherein the operation condition of the display represents the time of exposure of the device display.

29. The device according to item 27, wherein the operation condition of the display represents the time display device display based on characteristics of the sensitivity of the image bearing element.

30. Device according to any one of p or 26, wherein the information for setting the second condition of forming images corresponding to the multiple levels of value bearing the image of the item represents the information symbols to determine a second condition to form the image.

31. Device according to any one of p or 26, characterized in that the forming device of the image further comprises a means of display, designed to document bearing the image of the item, provided the exposure operation on the basis of the e image information, the information for setting the second condition of forming images corresponding to the multiple levels of magnitude usability bearing the image of the item is a condition of the operation display device display.



 

Same patents:

FIELD: electro-photographic devices.

SUBSTANCE: in accordance to the invention, process cartridge is installed with possible detachment (removal) in main assembly of electro-photographic image-forming device, which assembly contains output contact, moveable between electric connection position and a position withdrawn from electric connection position, shifting element for moving the output contact and resilient action element for resilient contraction of shifting element for contracting the output contact in direction towards position withdrawn from electric connection position. The process cartridge contains electro-photographic photo-sensitive drum, moveable working element, which may be moved relatively to the body of the cartridge, and, during insertion of process cartridge into main assembly of the device, the moveable working element ensures engagement with immovable element capable of engagement which is fastened in the main assembly of the device, to move relatively to the cartridge body, and is capable of engagement with shifting engaging section of shifting element for moving the output contact from withdrawn position to electric connection position in direction against the elastic force of resilient action element after engagement with immoveable element capable of engagement, input electric contact for receiving voltage for activation of process means when engaged with output contact, which is moved to electric connection position.

EFFECT: ensured reliability of electric connection between input electric contact of process cartridge and output contact, provided in main assembly of the image-forming device; prevented damage to electric circuit of the main assembly of the electro-photographic image-forming device and weakened impact or push of process cartridge, received by it from the side of main assembly of the device during installation of process cartridge in cartridge installation location in main assembly of electro-photographic image-forming device.

4 cl, 53 dwg

FIELD: processing cartridge and electro-photographic image creation device.

SUBSTANCE: processing cartridge is made with possible installation and removal in the main block of the image creation device. Main block contains electric socket. Moveable element is mounted with possible movement between protected position and open position. Blocking element is capable of movement between blocking position, serving for limiting serviceability of moveable element, and releasing position, serving for restoring serviceability of moveable element. Processing cartridge contains electro-photographic photo-sensitive drum, processing tools. First contacting section is used for moving the blocking element from blocking position into releasing position in main block of device. Second contacting section is used for moving the moveable element from protecting position into opening position into main block of device. Socket is used for electric connection to electric socket of main block during installation of cartridge in the main device block.

EFFECT: increased reliability of electric connection between electric contacts of processing cartridge and electric contacts of main block of electro-photographic image creation device, when the cartridge is installed into main block of electro-photographic image creation device.

4 cl, 46 dwg

FIELD: mechanical engineering; optics.

SUBSTANCE: technological cartridge is made for rest against movable guide disposed in main unit of image forming electric-photographic device and for movement from position of reception to position of mounting relating to movement of movable guide. Cartridge has electric-photographic drum, processing aids effecting on drum, frame of cartridge which serves as support for drum and for processing aids, first and second parts to be rested disposed at ends of drum, first and second positioning parts disposed properly in relation to main unit of image forming device, which parts extend outside frame of cartridge close to ends of drum. Cartridge also has engaged part for introduction into engagement with blocking part disposed in image forming device and made for movement in relation to movable guide upon receiving traction from blocking part to move from position of reception to position of mounting by means of movement of blocking part. Image forming electric-photographic device, which has mentioned cartridge, and mechanism for mounting mentioned technological cartridge re also given.

EFFECT: comfort at easiness of mounting of technological cartridge into main unit.

17 cl, 21 dwg

FIELD: electrophotographic devices.

SUBSTANCE: image-forming device provided with cartridge mounted in it, is made for forming image at different speeds. Cartridge has part of processing members for maintaining operation of image forming and memorizing medium which has memory area for storing data. The data relates to conditions of image forming by processing units for any speed of image forming. Device has control unit for setting conditions of image forming by processing units correspondingly to speeds of forming of image based on data memorized in memory unit. Memorizing medium can additionally have second memory area for storing data which relates to threshold value of cartridge's factor of usage value and third memory area for storing data related to threshold value of cartridge's factor of usage value. Cartridge's factor of usage, which depends on speed of image forming, is compensated.

EFFECT: improved efficiency of operation.

25 cl, 9 dwg

FIELD: engineering of image forming devices.

SUBSTANCE: image forming device has first image forming mode for forming an image on image-carrying element by using a developer under given condition of image forming and second image forming mode for forming an image on an image-carrying element by using a developer under second condition of image forming, which is different from the first given image-forming condition and is set in such a manner, that developer flow value in second image forming mode is less than flow value in first image forming mode. Device also contains: storage means meant for storing information for setting second image-forming condition, corresponding to the set of levels of usability value of image-carrying element, differentiation means for differentiating an image subject to forming and control means, meant for setting second image forming condition in second image forming mode depending on the result of differentiation, produced by means of differentiation and usability value of image-carrying element and information, stored in the storage means. The cartridge contains information processing means, intended for processing information on the image, which should be formed, an image-carrying element, storage means, meant for storing information in the cartridge, and having first storage area for storage of information, used in conjunction with image information, for setting second image-forming condition depending on the set of levels of usability value of image-carrying element in second image forming mode.

EFFECT: creation of device for forming an image and of a cartridge, which allow to reduce amount of used developer, and to preserve stable quality of image independently from usability value of image-carrying element.

4 cl, 38 dwg

FIELD: physics.

SUBSTANCE: image forming device has a first image forming mode to form an image on an image transfer element using developer in a first fixed state of image forming, and a second image forming mode to form an image on an image transfer element using developer in a second state of image forming, which is different from said first fixed state of image forming and is predefined so as to ensure developer consumption in the second image forming mode lower than that in the first image forming mode for the same image. At that, said device includes a storage to store information on used capacity of the image transfer element, an image processing controller to process the image on the basis of size of concentrated pixel area in the image information when the second image forming mode is set, and a control means to change the second image forming state in the second image forming mode depending on results of the processing carried out by the image processing controller and on the information stored in the storage. The cartridge contains an image transfer element. The storage includes the first storing area to store information on used capacity of the image transfer element, which is used in combination with the image information depending on results of the processing carried out by the image processing controller in order to change the second state of image forming. At that, the information for changing the second state of image forming is the information, which is used in the second mode of image forming, but not in the first mode of image forming.

EFFECT: provision of image forming device and cartridge capable to reduce consumption of developer while keeping stable image peculiarities regardless used capacity of image transfer element; provision of storage device to be installed on cartridge.

31 cl, 32 dwg

FIELD: physics; optics.

SUBSTANCE: image generating device comprises a rotatable latent image carrier, which is configurable to carry latent image, a spreading blade, a cleaning blade for remaining toner removal from the cleaned area of latent image, and a lubricating means. The latter comprises a lubricating element located on the downside of the cleaning blade as regards to direction of rotation of latent image carrier. It lubricates respective area of latent image carrier. Cleaning area and lubricating area overlap and are, in fact, one and the same area of latent image carrier. A brush roller is used as a lubricating element. Lubricant is a lubricating rod; image generating device comprises an apparatus, which rotates the brush roller so that the latter removes the rod-shaped lubricant and applies it onto latent image carrier. Cleaning blade is located at the upper side of lubricating means in the direction of rotation of image carrier. Spreading blade is located at the downside; brush roller width and longitudinal spreading blade width relationship being as follows: brush roller width ≤ spreading blade width.

EFFECT: reduced friction factor of photoconductive material, reduced dimensions, reduced lubricant consumption.

30 cl, 18 dwg

FIELD: mechanics.

SUBSTANCE: proposed cartridge to feed developer can be mounted in the developer intake device and removed therefrom and comprises the following elements, i.e. compartment to contain developer therein with a hole to feed it therefrom, a flexible element arranged in the aforesaid compartment around the said hole to seal the transition area between the developer feed cartridge and developer intake device. It also includes a film placed on the compartment containing developer and enveloping aforesaid flexible sealing element. The said film can be removed from the outlet hole. The proposed device incorporates also a gate to open and close the said outlet hole, that can slide over the flexible element on opening the latter by removing the aforesaid film.

EFFECT: cartridge to feed developer that requires minor force to open and close its gate and comprises sealing film ruling out leakage of dye-coupling developer.

5 cl, 6 dwg

FIELD: physics; image processing.

SUBSTANCE: invention relates to a device for transporting developer for use in an image formation device. Proposed is a device for transporting developer having a developer transportation unit and a unit for detecting toner concentration. There is a clamping wall in part of the entire area of the first transportation compartment in which there is a first screw element. The area lies opposite the bottom wall of the first transportation compartment on the bottom side in the direction of gravity of the first screw element and opposite sidewalls of the first transportation compartment on both transverse sides orthogonal to the direction of the axis of rotation of the first screw element. In this area toner concentration of the transported developer is determined using a toner concentration sensor. The clamping wall comes into contact with developer on the top in the direction of gravity, with the developer moving from the bottom to the top side in the direction of gravity in accordance with rotation of the first screw element and presses the developer down in the direction of gravity.

EFFECT: more accurate toner concentration detection.

13 cl, 48 dwg

FIELD: printing industry.

SUBSTANCE: in development cartridge contact plate of electrode element is arranged with the possibility of contact with contact site of development shift within the limits of projection plane, when slave binding part is projected in the first direction. The first axial line, which is axis of developing roll shaft, and the second axial line, which is axis of inlet toothed wheel, are arranged parallel and equidistantly in fore and aft direction. Part of contact plate is arranged on the second axial line. The first line that connects axis, around which inlet toothed gear rotates, and shaft of developing roll, and the second line that connects contact plate and shaft of developing roll are arranged parallel to each other. Distance between the first axial line and the second axial line is equal to the distance between the first axial line and contact plate.

EFFECT: stable supply of power to shaft of developing roll, even when motive force is sent directly from master binging part of device for images generation to slave binding part of development cartridge.

74 cl, 25 dwg

FIELD: physics.

SUBSTANCE: cartridge for supplying developer is made with possibility of detachable installation into the main unit of the electrophotographic image formation device. The primary colour cartridge includes: an electrophotographic photosensitive drum; a developer roller designed for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, a valve section of the receiving side which moves between the position for allowed reception of developer for opening developer reception holes, a moving section of the receiving side which moves for interrelated movement of the valve section of the receiving side between the position for allowed reception of developer and the position for prohibited reception of the developer. The moving section of the receiving side includes a working section of the receiving side which occupies the working position when the valve section of the receiving side is in the position for allowed reception of the developer, a control element designed for controlling movement of the moving section of the receiving side when the working section of the receiving side is in the working position. The cartridge for supplying developer also includes a developer holding section for the source side, a valve section for the source side which moves between the position for allowed supply of developer for opening holes for feeding the developer and the position for prohibited supply of the developer for closing holes for feeding the developer and a moving section for the source side. The moving section of the source side moves when the cartridge for supplying developer enters the main unit of the device in a position where the primary colour cartridge is installed in the main unit of the device for interrelated movement of the valve section for the source side from the position for prohibited supply of developer to the position for allowed supply of developer as a result of linkage with the working section of the receiving side of the moving section of the receiving side, whose movement is controlled by the control element in a state in which the working section of the receiving side lies in the working position.

EFFECT: design of a cartridge for supplying developer, a primary colour cartridge and an electrophotographic image formation device in which when the cartridge for supplying developer is extracted from the main unit of the device in a position where both the primary colour cartridge and the cartridge for supplying developer are installed in the main unit of the electrophotographic image formation device, loss of developer through holes for feeding the developer or through holes for receiving the developer can be prevented.

40 cl, 28 dwg

FIELD: physics.

SUBSTANCE: proposed is a developer transportation device which has a developer transportation unit and a toner concentration detection unit which can detect concentration of toner in the developer by getting into contact with the developer or a toner concentration sensor or the wall of the developer transportation unit. The average maximum value of the force pressing the developer to the surface of the sensor of the toner concentration detection unit or to the wall of the developer transportation unit ranges from 9.8×15 N/m2 to 9.8×100 N/m2. Proposed also is an image processing unit which has a latent image holding unit and a developing device which has a developer transportation device and a developer holding unit; an image formation device which has a latent image holding unit and a developing device.

EFFECT: more accurate detection of toner concentration.

8 cl, 26 dwg

FIELD: physics.

SUBSTANCE: developing apparatus is detachably mounted in the housing of an image formation device. The memory device has terminals passing through the rear side of the developing apparatus. The memory device is placed closer to the power reception unit formed on one side of the developing apparatus than to the actuating force reception unit formed on the other side of the developing apparatus.

EFFECT: prevention of damage to the memory device and bad connection between terminals of the memory device and the main housing of the image formation device due to the improved installation position of the memory device, and the image formation device fitted with such a development apparatus.

24 cl, 5 dwg

FIELD: physics, photography.

SUBSTANCE: invention relates to an image forming device and specifically to configuration of a developer unit of an image forming device. The developer cartridge has case with an attachment section which receives the developer cartridge in order to fill the developer cartridge case with an amount of developer equal to that consumed through the developer cartridge case and an element which forms the cover which closes the opening of the attachment section when the cartridge for the developer is not fitted into the developer cartridge. The element which forms the cover has a part for collecting the remaining developer. The developer unit has a developer cartridge which includes a developer supply unit which contains developer, and an attachment section with an opening facing the surface of the wall on one side of the developer cartridge and a cartridge for the developer which is inserted into the attachment section in order to feed the developer into the developer supply unit.

EFFECT: possibility of filling high-quality developer.

22 cl, 7 dwg

FIELD: electrophotographic devices.

SUBSTANCE: image-forming device provided with cartridge mounted in it, is made for forming image at different speeds. Cartridge has part of processing members for maintaining operation of image forming and memorizing medium which has memory area for storing data. The data relates to conditions of image forming by processing units for any speed of image forming. Device has control unit for setting conditions of image forming by processing units correspondingly to speeds of forming of image based on data memorized in memory unit. Memorizing medium can additionally have second memory area for storing data which relates to threshold value of cartridge's factor of usage value and third memory area for storing data related to threshold value of cartridge's factor of usage value. Cartridge's factor of usage, which depends on speed of image forming, is compensated.

EFFECT: improved efficiency of operation.

25 cl, 9 dwg

FIELD: mechanical engineering; optics.

SUBSTANCE: technological cartridge is made for rest against movable guide disposed in main unit of image forming electric-photographic device and for movement from position of reception to position of mounting relating to movement of movable guide. Cartridge has electric-photographic drum, processing aids effecting on drum, frame of cartridge which serves as support for drum and for processing aids, first and second parts to be rested disposed at ends of drum, first and second positioning parts disposed properly in relation to main unit of image forming device, which parts extend outside frame of cartridge close to ends of drum. Cartridge also has engaged part for introduction into engagement with blocking part disposed in image forming device and made for movement in relation to movable guide upon receiving traction from blocking part to move from position of reception to position of mounting by means of movement of blocking part. Image forming electric-photographic device, which has mentioned cartridge, and mechanism for mounting mentioned technological cartridge re also given.

EFFECT: comfort at easiness of mounting of technological cartridge into main unit.

17 cl, 21 dwg

FIELD: processing cartridge and electro-photographic image creation device.

SUBSTANCE: processing cartridge is made with possible installation and removal in the main block of the image creation device. Main block contains electric socket. Moveable element is mounted with possible movement between protected position and open position. Blocking element is capable of movement between blocking position, serving for limiting serviceability of moveable element, and releasing position, serving for restoring serviceability of moveable element. Processing cartridge contains electro-photographic photo-sensitive drum, processing tools. First contacting section is used for moving the blocking element from blocking position into releasing position in main block of device. Second contacting section is used for moving the moveable element from protecting position into opening position into main block of device. Socket is used for electric connection to electric socket of main block during installation of cartridge in the main device block.

EFFECT: increased reliability of electric connection between electric contacts of processing cartridge and electric contacts of main block of electro-photographic image creation device, when the cartridge is installed into main block of electro-photographic image creation device.

4 cl, 46 dwg

FIELD: electro-photographic devices.

SUBSTANCE: in accordance to the invention, process cartridge is installed with possible detachment (removal) in main assembly of electro-photographic image-forming device, which assembly contains output contact, moveable between electric connection position and a position withdrawn from electric connection position, shifting element for moving the output contact and resilient action element for resilient contraction of shifting element for contracting the output contact in direction towards position withdrawn from electric connection position. The process cartridge contains electro-photographic photo-sensitive drum, moveable working element, which may be moved relatively to the body of the cartridge, and, during insertion of process cartridge into main assembly of the device, the moveable working element ensures engagement with immovable element capable of engagement which is fastened in the main assembly of the device, to move relatively to the cartridge body, and is capable of engagement with shifting engaging section of shifting element for moving the output contact from withdrawn position to electric connection position in direction against the elastic force of resilient action element after engagement with immoveable element capable of engagement, input electric contact for receiving voltage for activation of process means when engaged with output contact, which is moved to electric connection position.

EFFECT: ensured reliability of electric connection between input electric contact of process cartridge and output contact, provided in main assembly of the image-forming device; prevented damage to electric circuit of the main assembly of the electro-photographic image-forming device and weakened impact or push of process cartridge, received by it from the side of main assembly of the device during installation of process cartridge in cartridge installation location in main assembly of electro-photographic image-forming device.

4 cl, 53 dwg

FIELD: engineering of image forming devices.

SUBSTANCE: image forming device has first image forming mode for forming an image on image-carrying element by using a developer under given condition of image forming and second image forming mode for forming an image on an image-carrying element by using a developer under second condition of image forming, which is different from the first given image-forming condition and is set in such a manner, that developer flow value in second image forming mode is less than flow value in first image forming mode. Device also contains: storage means meant for storing information for setting second image-forming condition, corresponding to the set of levels of usability value of image-carrying element, differentiation means for differentiating an image subject to forming and control means, meant for setting second image forming condition in second image forming mode depending on the result of differentiation, produced by means of differentiation and usability value of image-carrying element and information, stored in the storage means. The cartridge contains information processing means, intended for processing information on the image, which should be formed, an image-carrying element, storage means, meant for storing information in the cartridge, and having first storage area for storage of information, used in conjunction with image information, for setting second image-forming condition depending on the set of levels of usability value of image-carrying element in second image forming mode.

EFFECT: creation of device for forming an image and of a cartridge, which allow to reduce amount of used developer, and to preserve stable quality of image independently from usability value of image-carrying element.

4 cl, 38 dwg

FIELD: physics.

SUBSTANCE: image forming device has a first image forming mode to form an image on an image transfer element using developer in a first fixed state of image forming, and a second image forming mode to form an image on an image transfer element using developer in a second state of image forming, which is different from said first fixed state of image forming and is predefined so as to ensure developer consumption in the second image forming mode lower than that in the first image forming mode for the same image. At that, said device includes a storage to store information on used capacity of the image transfer element, an image processing controller to process the image on the basis of size of concentrated pixel area in the image information when the second image forming mode is set, and a control means to change the second image forming state in the second image forming mode depending on results of the processing carried out by the image processing controller and on the information stored in the storage. The cartridge contains an image transfer element. The storage includes the first storing area to store information on used capacity of the image transfer element, which is used in combination with the image information depending on results of the processing carried out by the image processing controller in order to change the second state of image forming. At that, the information for changing the second state of image forming is the information, which is used in the second mode of image forming, but not in the first mode of image forming.

EFFECT: provision of image forming device and cartridge capable to reduce consumption of developer while keeping stable image peculiarities regardless used capacity of image transfer element; provision of storage device to be installed on cartridge.

31 cl, 32 dwg

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