Electrophotographic light-sensitive drum unit and method of removing connecting element

FIELD: physics.

SUBSTANCE: group of inventions includes units of an electrophotographic light-sensitive drum, comprising: a cylinder, having a light-sensitive layer on its external periphery; and a drum flange mounted at one end of said cylinder, wherein said drum flange includes a plurality of protrusions provided inside said drum flange and protruding radially inwards from the drum flange, with a gap diametrically between said protrusions, wherein each protrusion has a recess for light deformation of said protrusions, and a method of removing a connecting element, intended for removing a connecting element from the drum flange mounted on the electrophotographic light-sensitive drum to transfer a rotational force to the drum flange in order to rotate the electrophotographic light-sensitive drum, wherein the method includes a tilting step where the connecting element is tilted relative to the rotational axis of the drum flange. The connecting element includes a rear end part held in the drum flange, having a spherical part and a pin which passes through said spherical part, and a free end part having a rotational force receiving part; a step for forced displacement of the pin, where the pin is pushed from one end to the other, wherein said one end and the other end of the pin protrude out of the spherical part in a state in which the connecting element is tilted on said tilting step, wherein the drum flange has a preventing part for preventing disengagement of the spherical part with the drum flange, and an external part provided outside the preventing part in the direction of the rotational axis of the flange; a step for advancing the pin where part of the pin, further protrusion of which at the end is provided through said forced displacement step, is forced to advance on said external part; and a step for removing the connecting element, where the connecting element is removed from the drum flange by applying a force to the free end part of the connecting element in the direction towards the fulcrum and which is part of the advancement of the pin on the external part.

EFFECT: easily implemented method of removing a connecting element, design of an electrophotographic light-sensitive drum unit in which removal of the connecting element is easy to carry out, and design of an electrophotographic light-sensitive drum unit in which installation of the connecting element is easy to carry out.

13 cl, 34 dwg

The technical field to which the invention relates

This invention relates to a method for removing the coupling element and the block electrophotographic photosensitive drum used for a process cartridge, which is installed with the possibility of removal in the primary site electrophotographic device imaging. In this invention, the process cartridge contains as a unit at least one of the reels electrophotographic light-sensitive element, a developing means as a processing means, actuated by the drum, the cleaning means and the charging means. And this cartridge is installed with the possibility of removal in the primary site electrophotographic device to form the image.

In addition, the electrophotographic device imaging forms an image on the material for recording information by a process of electrophotographic type. Examples of the electrophotographic device of image formation are electrophotographic copying machine, electrophotographic printer (a printer for light-emitting diodes (LEDs), laser printer), a facsimile device, printer-encoder clerical type, etc

In addition, the master node electrophotographic device imaging, except for the process cartridge is part of the electrophotographic device to form the image.

Prior art

In known electrophotographic device imaging, which uses the electrophotographic process of forming the image, the drum electrophotographic light-sensitive element and means for processing driven on the electrophotographic photosensitive drum with a surface layer, combined in a cartridge as a unit. And this cartridge is installed with the possibility of removal in the primary site electrophotographic device forming an image of the type which provides for the use of the process cartridge.

In accordance with this type of process cartridge maintenance electrophotographic device imaging can hold the user himself, without relying on the representative of the staff, and therefore the performance of maintenance is noticeable.

Furthermore, in the electrophotographic device of image formation, the image formation occurs on the Mat is the material for recording information by use of the developer. The developer contained in the developer accommodating part, consumed, when the process cartridge having the developing means, repeats the formation of the image.

Desirable simple ways disassembly and re-manufacturing again to make useful process cartridge from which the developer consumed to such an extent that the formation of the image, which can satisfy the user, be impossible. An example of such a method is described in US patent No. 6643482.

Desirable easy way to build technological cartridge.

This invention represents a further development of the above-described known technical solutions.

Disclosure of invention

Accordingly, the main objective of the invention is to develop an easy way of removing the coupling element.

Another objective of the invention is to develop a block electrophotographic photosensitive drum, in which the removal of the coupling element is easy to implement.

An additional objective of the invention is to develop a block electrophotographic photosensitive drum, in which the installation of the connecting element is easily feasible.</>

In accordance with one aspect of the present invention proposed a block electrophotographic photosensitive drum, comprising: (a) a cylinder having a photosensitive layer on its outer periphery; and (b) a drum flange provided at one end of the said cylinder and the said flange of the drum includes: (i) the set of projections provided inside the above-mentioned flange of the drum and protruding radially inward from the flange of the drum, with a gap between the protrusions diametrically around the above-mentioned flange of the drum; (ii) a recess provided in a position located radially outside the inner area of the above-mentioned protrusions.

The area of each protrusion preferably has an overhanging part.

Preferably may be formed from a different gap between regulatory areas along the circumferential direction of the above-mentioned flange of the drum.

Preferably a number of such grooves are provided at intervals in the circumferential direction.

Mentioned flange of the drum is preferably made of resin.

The above unit may also include a serrated portion provided along the outer surface of the above-mentioned flange of the drum, and the protrusions are provided in the same position as mentioned serrated portion relative to the longitudinal healthy lifestyles is of the above-mentioned cylinder.

In accordance with the second aspect of the present invention, a method for removing the coupling element intended for removal from the flange of the drum mounted on the electrophotographic photosensitive drum, the coupling element for transmitting torque forces the flange of the drum, for rotating the electrophotographic photosensitive drum, and the said method includes:

(i) the stage of the slope on which the tips of the connecting element relative to the axis of rotation of the drum flange, and the connecting member includes a rear end portion supported in the flange of the drum, which has a spherical portion and a finger passing through the spherical portion and a free end portion which has a receiving rotational force part for the perception of rotational power;

(ii) the phase displacement of the finger on which you push your finger from one end to the other end, and mentioned one end and the other end of the finger protrude outward from the spherical portion in a state in which the connecting element is tilted at the stage tilt, while the flange of the drum has a preventing portion for preventing disengagement of the spherical part of the flange of the drum, and the outer part provided on the outside preventing portion in the direction of the axis of rotation the flange;

(iii) the stage of advancement of a finger, which make part of the finger, an additional protrusion which in the end provided by the above-mentioned phase displacement, to move on the said outer part; and

(iv) a step of removing the coupling element, which remove the connecting element with the flange of the drum by application of force to the free end portion of the connecting element in the direction toward the center of the hinge and which is part of the promotion of the finger on the outer part.

An aspect of this invention is also a method of removing the coupling element intended for removal from the flange of the drum mounted on the electrophotographic photosensitive drum used with the process cartridge, which is installed with the possibility of removal in the primary site electrophotographic device imaging, the coupling element to the perception of rotational power, which is designed for rotation of the electrophotographic photosensitive drum, from the primary node device in a state in which process cartridge is set in the master node device, and the above-mentioned method comprises: (i) the stage of the slope on which the tips of the connecting element relative to the axis of rotation of the drum flange, and the connecting element including the AET in myself perceiving torque force element, having a free end portion of the perceiver torque force part for the perception of rotational power, a spherical portion mounted on a rear root portion of perceiving a rotational force of the element due to passing through the finger; (ii) the phase displacement of the finger on which you push your finger from one end to the other end, and referred to one and the other ends of the fingers protrude from the spherical portion in a state in which the connecting element is tilted by means of the above-mentioned phase slope; along the inner side of the flange of the drum is provided by regulating portion with a gap between the spherical part and the regulatory part, there are configurations that are closer to the spherical surface of the free end portion than the plane that is perpendicular to the longitudinal direction of the electrophotographic photosensitive drum and which passes through the center of the spherical surface, and these regulating portion includes a first surface extending from the regulating portion in the direction from the coupling element to a free end portion with respect to the longitudinal direction, and a second surface, tinutul from the first surface passing from the regulatory side in the direction from the coupling element to a free end portion a relative to the positive longitudinal direction; (iii) the stage of advancement of a finger, which make part of the finger, an additional protrusion which in the end provided by the above-mentioned phase displacement, to move the second surface; and (iv) a step of removing the coupling element, which remove the connecting element with the flange of the drum by application of force to the free end portion of the connecting element in the direction toward the center of the hinge and which is part of the promotion of the finger on the second surface.

In accordance with another aspect of the present invention, a method for removing the coupling element intended for removal from the flange of the drum mounted on the electrophotographic photosensitive drum used with the process cartridge, which is installed with the possibility of removal in the primary site electrophotographic device imaging, the coupling element to the perception of rotational power, which is designed for rotation of the electrophotographic photosensitive drum, from the primary node device in a state in which process cartridge is set in the master node device, and the connecting element includes perceiving torque effect element having a free end portion of the perceiver torque force on the part in which sprite torque forces, polymer spherical portion mounted on a rear end part of the perceiver rotating force of the element due to passing through the finger, with the aforementioned connecting element installed on a drum flange mounted on one end of the electrophotographic photosensitive drum by using a polymer regulating portion that is provided inside the flange of the drum and which is inward relative to the radial direction of the flange of the drum, with a gap between the spherical part and the regulating part, and the said method comprises: (i) phase-entrainment, which capture the perceiver torque force element of the connecting element; (ii) the step of removing the coupling element, which remove the connecting element its spherical polymer of polymer regulating portion, deforming at least one of the polymer regulating part and a polymeric spherical part by application of force to the free end portion of the connecting element in a state in which the perceiver torque force element captured by the above-mentioned phase-entrainment.

In accordance with another aspect of the present invention, a method for installation of the connecting element designed to be placed on the flange of the bar is Ana, mounted on the electrophotographic photosensitive drum used with the process cartridge, which is installed with the possibility of removal in the primary site electrophotographic device imaging, the coupling element to the perception of rotational power, which is designed for rotation of the electrophotographic photosensitive drum, from the primary node device in a state in which process cartridge is set in the master node device, and the connecting element includes perceiving torque effect element having a free end portion of the perceiver torque force part for the perception of rotational power, a polymeric spherical portion mounted on a rear end part of the perceiver rotating force of the element due to passing through the finger, and mentioned connecting element installed on a drum flange mounted on one end of the electrophotographic photosensitive drum, using polymer regulating portion that is provided inside the flange of the drum and which is inward relative to the radial direction of the flange of the drum, with a gap between the spherical part and the regulatory part, however, the above method includes: a step of installing the coupling element, on which oterom establish polymeric spherical portion of the coupling element in the polymer regulating portion, deforming at least one of the polymer regulating part and a polymeric spherical part by pushing it longitudinally inside the electrophotographic photosensitive drum.

In accordance with an additional aspect of the present invention proposed a block electrophotographic photosensitive drum, which is installed in the connecting element, and referred to the connecting element includes a free end portion of the perceiver torque force element for the perception - from the electrophotographic device of the image-forming - torque forces intended for rotation of the electrophotographic photosensitive drum, a spherical portion mounted on a rear end part of the perceiver rotating force of the element due to passing through the finger, while the mentioned block electrophotographic photosensitive drum includes a cylinder having a photosensitive layer on its outer periphery, and a drum flange provided at one end of the said cylinder, moreover, the said flange of the drum includes many polymer regulating portions provided inside the above-mentioned flange of the drum and protruding radially inward from the flange of the drum, these regulating the Asti are driven to control the movement mentioned spherical portion in the longitudinal direction of the above-mentioned block drum, when he set mentioned connecting member; a recess provided in said regulating portion in a position located radially outside of said flange of the drum, to facilitate deformation of the mentioned regulating portion radially outward of said flange of the drum; and many perceive torque force parts comprising a finger for the perception of the torque force, and the said finger is provided between adjacent of these regulatory parts.

These and other objectives, features and advantages of this invention will become clearer upon consideration of the following description of preferred embodiments of the present invention in conjunction with the attached drawings.

Brief description of drawings

Figure 1 shows the cross section of the main site and process cartridge of the device forming the image in the embodiment.

Figure 2 presents in an enlarged scale a cross-section of the cartridge.

Figure 3 shows a perspective representation illustrating the frame construction process cartridge.

4 shows a perspective image of the primary node in a state in which the openable and closable door opened.

Figure 5 presents a perspective image of the drive shaft of the primary node.

Figure 6 presents a perspective image of the free end portion of the connecting element.

Figure 7 presents an illustration showing the state in which the connecting element and the drive shaft are connected to each other.

On Fig presents a cross section illustrating the state in which the connecting element and the drive shaft are connected to each other.

Figure 9 presents a perspective image receptive torque force element that is part of the connecting element.

Figure 10 presents a perspective image of the spherical part, which is part of the coupling element.

Figure 11 presents a cross-section of the connecting element.

On Fig presents a perspective image of a connecting element.

On Fig presents an illustration of the flange of the drum.

On Fig section, performed on the line S2-S2, shown in Fig.

On Fig presents a cross-section illustrating the process during which assembles the perceiver torque force element in the flange of the drum, in cross section along the line Sl-Sl shown in Fig.

On Fig presents a cross-section illustrating the process during which the clutch is fixed to the flange of the drum, in cross section along the line Sl-Sl shown in Fig.

On Fig p is estaline perspective image block, the view from the drive side.

On Fig presents a perspective image of the block, as with the non-driving side.

On Fig presents perspective representation illustrating the process of disassembly of the unit light-sensitive element.

On Fig presents perspective representation illustrating the process of disassembly of the unit light-sensitive element.

On Fig presents perspective representation illustrating the process of disassembly of the unit light-sensitive element.

On Fig presents perspective representation illustrating the process of disassembly of the unit light-sensitive element.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig presented in an enlarged scale frequent incision portion with an aperture, shown in Fig.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig presents a perspective image, which is prostranstve the second illustration of the state according Fig.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig presents a cross-section illustrating the method of removing the coupling element directly from the drum unit.

On Fig section, illustrating a method of re-Assembly of the block of the drum.

On Fig section, illustrating a method of re-Assembly of the block of the drum.

On Fig presents perspective representation illustrating the method of disassembly of the drum unit.

On Fig presents perspective representation illustrating a method of re-Assembly of the block of the drum.

The best way of carrying out the invention

With reference to the accompanying drawings will be described embodiments of the present invention. Function, material, shape, positional relationship, etc. of the elements described below are not limiting the invention unless otherwise specified. With regard to material, configuration, etc. of the elements described once, they are applicable to the following descriptions, unless otherwise specified.

Option exercise

General layout

Figure 1 shows the cross section of the primary node 1 device imaging (primary node) and process cartridge 2 (cartridge) device is istwa imaging in the embodiment of the present invention. Figure 2 presents in an enlarged scale a cross-section of the cartridge 2. Now, with reference to figure 1-2, will be described the General layout and the process of forming the image forming device of the image in accordance with this embodiment.

This device imaging is a laser printer that uses a method of Electrophotography, the cartridge 2 sets with the possibility of removal in the primary site 1. When the cartridge 2 is installed in the primary site 1, at the top of the cartridge 2 is exposing unit 3 unit (laser scanner). The lower part of the cartridge 2 is provided with a tray 4 for sheets containing material P to record information (sheet material)that represents the object on which form the image. The primary site 1 is equipped with a provided along the feed direction of the sheet material P searching roller 5a, the feed roller 5b, a pair of 5c feed rollers, the guide 6 of the transfer charging roller 7 migration, feeding guide 8, a fixing device 9, 10 pair of exhaust rollers, the discharge tray 11, etc.

The process of image formation

Now will be described the basic principle of the process of image formation. In response to the signal of the beginning of the printing drum 20 electrophotographic light-sensitive is lamenta (drum) is rotated in the direction the arrow R1 with a predetermined peripheral speed (process speed). With the outer surface of the drum 20 contacts the charging roller 12 (the charging means, the processing means), served on the bias voltage and the outer surface of the drum 20 is uniformly charged by this charging roller 12.

From the exposing device 3 is given beam L of laser, modulated accordingly serial electrical digital pixel signal of image information. The beam L of laser enters the cartridge 2 through the display window 53 of the upper surface of the cartridge 2 for exposing the outer surface of the drum 20 to be scanned by this laser beam. On the outer surface of the drum 20 is formed electrostatic latent image corresponding to the image information. This electrostatic latent image is visualized with the image shown by the toner with the developer T (toner) in the processor unit 40 of the device.

The charging roller 12 is in contact with the drum 20 and provides an electrical charging of the drum 20. The charging roller 12 rotates the drum 20. Unit 40 developing device supplies toner to the area of the processing drum 20 for developing a latent image formed on the drum 20.

Unit 40 developing device supplies toner T, j is present in the chamber 45 of the toner, in the chamber 44 of the supply of toner by rotating the mixing element 43. Developing roller 41 (processing means, the processing means), which is a developer bearing element containing a magnetic roller 41A (permanent magnet), rotates, and on the surface of the developing roller 41 is formed a layer of toner, the triboelectric charged with the knife 42. The toner is transferred to the drum 20 in accordance with the latent image, so that the electrostatic latent image is visualized with the image shown by the toner. Processor knife 42 applies a triboelectric charge of regulating the amount of toner on the peripheral surface of the developing roller 41.

On the other hand and in accordance with the synchronization of the issuance of the beam L of laser sheet material P contained in the lower part of the main node 1, fed from tray 4 sheet pick roller 5a, the feed roller 5b and a pair of 5s feed rollers. The sheet material P is synchronized and fed into the transfer position between the drum 20 and the charging roller 7 to migrate along the guide 6 of the transfer. In the carrying position, the image shown by the toner sequentially transferred to the sheet material P from the drum 20.

The sheet material P, on which the transferred image is shown by the toner is separated from the drum 20 and is fed to f is xaroumena device 9 for feeding guide 8. The sheet material P passes through the contact zone formed between the fixing roller 9a and a pressure roller 9b, which constitute the fixing device 9. This material is subjected to the fixation process by the application of pressure and heat in the contact zone, so that the image displayed by the toner is fixed on the sheet material P. the Sheet material P subjected to the fixation process image for the image shown by the toner is fed to a pair of 10 discharge rollers and is produced in the discharge tray 11.

On the other hand, the residual toner on the outer surface of the drum 20 is removed by purifying knife 52 (cleanser, means for processing after transfer, the drum 20 is used for the next operation of forming the image, which begins with the operation of the electric charge. Spent the toner removed from the drum 20, is stored in the chamber 52a of the spent toner unit 50 of the light-sensitive element.

The charging roller 12, developing roller 41, a cleaning knife 52, etc. are processing means driven by the drum 20, respectively.

The frame design process cartridge

3 shows the perspective representation illustrating the frame construction of the cartridge 2.

The frame design of the cartridge will be described with reference to figure 2 and figure 3.

As shown in figure 2, the drum 20, the charging roller 12 and the cleaning knife 52 is installed on the frame 51 of the drum, forming a single unit 50 of the photosensitive drum.

On the other hand, the processor unit 40 of the device formed by the camera 45 toner which contains toner, and accommodating the toner chamber 40A, which forms a chamber 44 of the supply toner, and a cover 40b.

Accommodating the toner chamber 40A and the cover 40b are connected into a single unit with each other with the help of such means as welding.

As shown in figure 3, the free end of the lever portion 55A is made on the side cover 55 provided at each end with respect to the longitudinal direction (the axial direction of the developing roller 41) block 40 processing device provided with a round hole 55b under rotation, the concurrently developing roller 41.

The frame 51 of the drum has a hole 51A for clutch designed for reception element 54 connections, coaxial with the hole 55b to rotate when the lever portion 55A is inserted in a predetermined position of the frame 51 of the drum.

The block 50 of the light-sensitive element and the processor unit 40 of the device connected can be rotated relative to each other using the element 54 of the connection due to the insertion element 54 connection through both holes - hole 55b for rotation and a hole 51A for the clutch. When the cylinder is practical spring 46 compression, mounted on the base portion of the lever portion 55A, rests on the frame 51 of the drum, the pressing unit 40 processing device down.

Due to this developing roller 41 (2) is firmly pressed against the drum 20.

On the opposite ends of the developing roller 41 is installed spacers (not shown), so that the developing roller is supported with predetermined intervals from the drum 20.

A method of transferring torque forces on the process cartridge

4 shows a perspective image of the inside of the primary node with the door open 140 for cartridge door primary node). The cartridge 2 is not installed.

Now with reference to figure 4 will be described by way of the transmission of torque forces on the cartridge 2.

As shown in figure 4, node 1 is provided by guide rail 130 for installation and removal of the cartridge, and the cartridge 2 installed inside the primary node 1 to this guide rail 130.

In this case, the drive shaft 100 of the primary site 1 and the connecting element 150 (Fig 3) as the transmitting rotating force of the cartridge 2 are connected to each other in connection with the operation of the cartridge 2.

Due to this, the drum 20 perceives from the primary node 1 torque force to rotate.

1) Drive shaft 100

Figure 5 presents a perspective image of the drive shaft is 100 from the primary node.

Drive shaft 100 is connected with the gear means of the actuator, such as a not shown gear provided in the main node 1, with a not shown electric motor.

The free end portion 100a of the drive shaft 100 is essentially hemispherical in shape and has a transmitting rotating force of the fingers as the applied torque force parts 100b.

2) the connecting element

In the state in which the cartridge 2 is mounted for removal in the primary site 1, the connecting member 156 has a function of perception of rotational power from the primary node to the rotation of the drum 20.

As shown in figure 11 and Fig, this coupling element 156 has perceiving torque force element 150, which has in its free end portion of the perceiver torque force part I (150el-150e4) for the perception of the torque force.

In addition, he has a spherical portion 160 (spherical element)set due to passing through the finger 155 through the rear end part of the perceiver torque force element 150.

Figure 6 presents a perspective image receptive torque force element 150. The material of the connecting element 150 is a polymeric material, such as Polyacetal, polycarbonate and polyster (PPP) or similar material.

Together with those who, to increase the rigidity of the perceiver torque force element 150, a polymeric material, it is possible mixture of glass fibers, carbon fibers and/or similar fibers, respectively, the required load in the form of torque.

When mixing such material, it is possible to increase the rigidity of the perceiver torque force element 150.

The rigidity can be further increased by introducing metal into the polymer material, with all of perceiving torque force element 150 can be made of metal, etc.

The free end of the torque transmitting force element 150 is equipped with many perceiving the drive projections 150d (150d1-150d4).

In addition, perceiving the drive projection 150d (150d1-150d4) equipped with perceiving torque force part 150e (150e1-150e4), inclined relative to the axis L150 of the perceiver torque force element 150.

In addition, inside the receptive drive protrusion 150d1-150d4 provided a funnel-shaped surface 150f.

3) the status of the connection between the drive shaft 100 and the coupling element 156

Figure 7 presents an illustration showing the state in which the perceiver torque force element 150 of the connecting element 156 and the drive shaft 100 are connected to each other. On Fig presents a cross section illustrating the state in which the perceiver BP is against the force element 150 and the drive shaft 100 are connected to each other.

Now with reference to Fig.7 and Fig will describe the status of the connection between the drive shaft 100 and perceiving torque force element 156.

Transmitting a rotational force of the finger 100b of the drive shaft 100 is coupled with receptive torque force part 150e (150e1-150e4).

Although it is not shown in Fig.7, transmitting a rotational force of the finger 100b on the rear side is also linked with perceiving torque force part 150e.

In addition, the free end portion 100A of the drive shaft 100 is in contact with the notch 150f perceiving torque force element 150. Due to the rotation of the drive shaft 100 rotating force is transferred on the receiving rotational force part 150e from transmitting a rotational force of the finger 100b.

In addition, due to the tilt of the perceiver torque force parts 150e-axis L150 of the perceiver torque force element 150 perceiving this torque force element 150 and the drive shaft 100 is drawn to each other, and between the free end part 100A and the notch 150f has guaranteed contact, so that provides guaranteed transfer torque forces.

4) the connecting element 156 and the connecting part

Figure 9 presents a perspective representation illustrating perceiving torque force element 150, and Fig. 10 shows the perspective representation illustrating sferica the forge part 160.

Figure 11 presents a cross-section of the coupling element 156, and Fig presents a promising picture of the coupling element 156.

As shown in Fig.9, the end opposite the receptive torque force parts a perceiving torque force element 150, provided with a through hole 150r.

As shown in figure 10, the spherical portion 160, connected with perceiving torque force element 150 has an essentially spherical shape and is provided with perceiving torque force element 150 and the hole for the adoption of the finger 155, as will be described below.

Hole 160a, closed at one end, receives the end of the 150s perceiving torque force element 150. A through hole 160b - together with a hole 160A - takes the finger 155, which will be described below.

As shown in figure 11 and 12 receiving a rotational force element 150 is inserted into the spherical portion 160, and finger 155 is inserted in a state in which a through hole 150r and a through hole 160b are aligned with each other.

In this embodiment, perceiving torque force element 150 and the hole 160a concatenated on a sliding landing.

The fingers 155 and through hole 150r concatenated on a sliding landing.

The fingers 155 and through hole 160b linked by the press fit.

Accordingly, the finger 155 and the spherical portion 160 is connected in e is another integer.

The part provided by the connection between the perceiver torque force element 150 and the cylindrical portion 160 is a coupling element 156.

When a torque force is perceived from the drive shaft 100, perceiving torque force on the element is rotated around the axis L150, and a through hole 150r engages with the finger 155.

More specifically, the rotating force transmitted from the main node 1 is converted into a force to rotate the finger 155 around the axis L150 of rotation by means of perceiving torque force element 150.

5) Transmission of torque forces on the drum 20 from the coupling element 156

On Fig presents an image illustrating the flange 151 of the drum, and Fig. 14 presents a cross-section drawn along line S2-S2, shown in Fig. 13.

On Fig presents a cross-section drawn along line S1-S1, shown in Fig illustrating a process during which assembles the perceiver torque force element 150 in the flange 151. On Fig presents a cross-section drawn along line S1-S1, shown in Fig illustrating the process during which exercise fastening perceiving torque force element 150 to the flange 151.

On Fig presents a promising image block 21 electrophotographic photosensitive drum (drum unit), the and the view from the drive side (the side of the perceiver torque force element 150).

On Fig presents a schematic perspective representation of block 21 of the drum, as with non-drive side (lengthwise opposite perceiving torque force element 150).

Now with links to pig and pig will be described an example of the flange 151 of the drum (ange), which is installed on perceiving torque force element 150.

The flange 151, on the side of the drive shaft 100, is depicted in Fig.

Opening 151g (151g1-151g4), shown in Fig, is a groove going in the direction of the axis of rotation of the flange 151.

When perceiving torque element 150 is mounted onto the flange 151, the finger 155 is accepted any two of these openings 151g1-151g4.

Above clockwise side openings 151g1-151g4 equipped with transmitting a rotational force of the surface (receiving a rotational force part) 151h (151h1-151h4).

When the rotating force is transmitted to the flange 151 of the finger 155, the finger 155 and transmits a rotational force to the surface 151h contact with each other.

In addition, next to the Central axis L151 flange 151 is provided a recess (cavity) 151f. Notch 151f provides a cavity surrounded by a cylindrical surface 151j (151j1-151j4)stopping part 151i (151il-151i4), which is the regulatory part, and opening 151k (151k1-151k4). Cylindrical surface 151j (151j1-151j4) represents essentially cylindric will stifle the surface, which is coaxial with the axis l151 and which is adjacent to the doorway 151g and has a diameter D151a.

Locking portion 151i (151i1-151i4) has essentially hemispherical surface which smoothly continues cylindrical surface 151j and has a radius SR151.

Opening 151k (151k1-151k4) is converted to the drive shaft 100 side locking portion 151i and has a diameter D151b.

More specifically, the aperture 151k has a first surface regulating portion that extends from the locking portion 151i (regulatory part) and which runs in the direction from the coupling element 156 to the free end of the perceiver torque force element 150 with respect to the longitudinal direction of the drum 20.

Moreover, the relationship between them and the outside dimension D160 spherical element 160 is as follows (Fig. 14, Fig. 15):

D151b < D160 < D151a = 2×SR15l.

Although spherical element 160 can be inserted into the recess 151f with a gap G (Fig), it moves to the doorway 151k in the direction of the axis L151 prevented.

Due to this, prevent the spherical element 160 (coupling element 156) is inseparable from the flange 151 (process cartridge 2) under normal conditions.

More specifically, the flange 151 is mounted on the end of the drum 20, and the connecting member 156 is mounted on the flange 151.

To install the coupling element 156 of the flange 151 is supplied regulate what her part (locking part 151i), passing through the inner peripheral surface of the flange 151. This regulating portion (locking portion 151i) has a gap G relative to the spherical portion 160, and has a configuration that is closer to the configuration of the surface of the spherical portion 160 perceiving torque force element 150, than the plane, which is perpendicular to the longitudinal direction of the drum 20 and which passes through the center of the spherical portion 160.

Now, with links to pig and 16, will be described Assembly process perceives a rotational force element 150 on the flange 151 and attachment to him. The end part 150 is inserted in the direction of the arrow X1 in the flange 151.

Then the spherical portion 160 is placed over the end portion 150 in the direction indicated by the arrow X2.

In addition, the through-hole 160b spherical portion 160 and a through hole 150r end portion 150s align with each other, and then stick them in the finger 155 in the direction of the arrow X3.

The finger 155 is inserted through the through hole 160b and a through hole 150r.

Since the internal diameter of the through-hole 160b and through hole 150r less than the diameter of the pin 155, between the pin 155 and through-hole 160b, a force of friction. In this embodiment, the preload is about 50 micrometers.

Due to this, during normal use is prevented rejected the e finger 155, and the connecting member 150 is formed by the connection between the perceiver torque force element 150 and the spherical part 160.

In addition, the connecting member 156 is moved in the direction X4, and the spherical portion 160 comes into contact with the locking part 151i or approaching it.

Then locking element 157 is inserted in the direction indicated by the arrow X4, and fastened to the flange 151.

Because of the spherical portion 160 includes a gap (gap), the connecting member 156 can change the orientation.

Now with links to pig and pig will be described the construction of block 21 of the drum.

The flange 151, which has a coupling element 156 that is attached to the end side of the drum 20 so that the perceiver drive the projection 150d opened from outside.

In addition, the flange 152 of the drum on the non drive side is attached to the other end side of the drum 20.

Mounting method may be compression, bonding, welding, etc.

In the state in which the drive side of block 21 of the drum is supported by the supporting member 158 (Fig 3, Fig), and its not the drive side is supported rotatably supporting the drum unit with a finger 159 (3), block 21 of the drum is supported rotatably by the frame 51 of the drum (figure 3). As described above, the rotating force transmitted from a motor (not shown primary node 1, rotates the drive shaft 100 through the transmitting drive means such as a gear wheel (not shown) of the primary node 1.

This torque force is transmitted to the cartridge 2 through perceiving torque force element 150 of the connecting element 156.

In addition, the rotating force is transmitted through the finger 155 from perceiving torque force element 150 on the flange 151 through the finger 155 for the application of rotational force to the drum 20, is attached to the flange 151 as a single whole with him.

The outer periphery of the flange 151 is provided with a helical gear 151c, molded as a single piece with the flange 151.

This gear 151c transmits a rotational force that is perceived from the drive shaft 100 perceiving torque force element 150 on developing roller 41 (figure 2).

More specifically, the outer part located opposite the locking part, which is the regulatory 151i of the flange 151, equipped with a helical gear s, and this toothed wheel transmits torque force that is perceived from the primary node 1 perceiving torque force part, on the developing roller 41.

The method of re-manufacturing of ink cartridge

In the cartridge 2 installed and used in the primary site 1 device, the toner T contained in the chamber 45 of toner consumed by repeating the formation of the image.

When the toner T is consumed to what what extent the formation of the image, which satisfies a user of the cartridge 2, it is impossible, it leads to the loss of the trademark significance of the cartridge 2.

Because of this, it is envisaged, for example, a tool (not shown) for detecting the remaining amount of toner cartridge 2, and the control circuit of the primary node (not shown) compares the detected remaining amount with a preset threshold for issuing a forecast life of the cartridge and/or warnings about the life of the cartridge.

When the detected residual quantity is less than the threshold, the indicator portion (not shown) displays a forecast of life or the prevention of the cartridge 2.

Due to this, the user gets the opportunity to prepare a replacement cartridge 2, and consequently supported the quality of output images.

Used process cartridges 2 accumulate and spend cleaning, replacement of parts, etc. and help them fresh toner.

Due to this repeat manufacturer for reuse.

Will now be described by way of re-manufacturing used cartridge.

In this case, cleaning is performed, for example, by suction of air, blowing air, wet scrubbing, wiping, etc.

(i) Phase separation of the blocks from each to each the

When the element 54 of the connection, which connects the block 50 of the light-sensitive element and the block 40 processing device rotatable relative to each other, pull out, the processor unit 40 of the device and the block 50 of the light-sensitive element are separated from each other (figure 3).

(ii) Disassembly, cleaning, replacement of parts, reassembly block 50 a photosensitive element

On Fig-22 presents the perspective image illustrating the processes of disassembly unit 50 of the light-sensitive element.

After separation unit 50 of the light-sensitive element and the processor unit 40 of the device from each other carry out the disassembly, cleaning, replacement of parts, re-Assembly of block 50 with the photosensitive surface.

These operations will be described below.

First, with links to pig will be described disassembly of the speaker element 101 and the compression spring 102.

Shaft portion 101A protruding element 101 for shielding and protection from light drum 20 is removed together with the presser spring 102 with a U-shaped support portion 51d of the frame 51 of the drum.

Now with links to pig will be described by way of removing the block 21 of the drum.

Block 21 of the drum is supported by the supporting member 158 and the supporting block of the drum with your finger 159 provided on the respective ends of the block 50 of photosensitive element (rum the drum 51).

When I pull out the finger 159, non-drive side (the side with the finger unit 21 of the drum unlinked.

Wall 51b non-drive side of the frame 51 of the drum is open in the longitudinal direction outside, and at the same time supporting element 158, mounted on the wall s drive side of the frame 51 of the drum as a unit with it, it opens in a longitudinal direction outward on the drive side.

These directions are marked by arrows on Fig.

Then block 21 of the drum rotates in the direction indicated by the arrow X201, around the drive side of the block 21 of the drum.

His turn until the flange 152 of the drum the non-driving side (Fig) will not cease to overlap with the wall 51b non-drive side relative to the axial direction (direction of arrow X202) unit 21 of the drum, and then the block 21 of the drum easily pull in the direction indicated by the arrow X202.

Now with links to pig will be described removal of the spent toner and removing the charging roller 12.

When the block 21 of the drum is removed, between purifying knife 52 and the sheet 56 to prevent leakage of the spent toner mounted on the frame 51 of the drum, is formed an elongated opening 57 for collecting the spent toner.

Due to this, the removal of the spent toner stored in the chamber 52a of the spent toner (2) of the frame 51 of the drum, which may be achieved through an aperture 57 for collecting the spent toner.

This removal is carried out, for example, by suction of air blowing, wet cleaning, cleaning.

To remove the charging roller 12 is removed the shaft of the roller in the direction indicated by the arrow, from the poles 13 of the charging roller on the side of the frame drum, which supports the opposite ends of the roller shaft.

In the state in which the charging roller 12 is cleared, carry out the removal of the spent toner, avoiding contamination of the charging roller 12 and damage to the charging roller 12 during the removal.

Removing cleansing of the knife 52 is carried out by removing the two screws 58, which are fixed purifying knife 52 to the frame 51 of the drum.

(iii) Removal and disassembly of the coupling element 156 (1)

In this embodiment, perceiving torque force element 150 and the finger 155 coupling element 156 is made of metal, in order to achieve high quality images.

Because they are made of metal, the durability is excellent, and you can re-use, whereupon it is desirable to remove them and reuse. In the process of removing the coupling element 156 a method of manufacturing a block 21 of the drum described above, embody in reverse order.

In other words, the drum 20 is removed from the block 21 of the drum and then the material 158 locking part (Fig) is separated on the flange 151.

Then pull the finger 155 of the coupling element 156.

Due to this, perceiving torque force element 150 and the spherical portion 160 can be separated from each other.

The fingers 155 and perceiving torque force element 150 are reused at least once (not shown).

(iv) Removal and disassembly of the coupling element 156 (2)

As another way of possibly removing the coupling element 156 directly from block 21 of the drum.

In this case, since the operation of the Department of the drum 20 and locking element 157 from each other are optional, the efficiency is excellent.

Now will be described a method of removing the coupling element 156 directly from block 21 of the drum.

On Fig presents a cross-section illustrating the method of removing the coupling element 156 directly from block 21 of the drum. This section is a section along the line S2-S2, shown in Fig.

On Fig presents detailed view of part with opening 151k (the part circled), as shown in Fig. 23.

Since the flange 151 has a gear 151c, it is usually made of polymer material with a high ability to slide, such as Polyacetal.

Because of the spherical portion 160 performs swing in the recess 151f similarly, it is also made of polymer elements such as acetal resin. More specifically, the spherical portion 160 and the flange 151 (regulatory part, indicated by the position 151S, or locking portion 151i) made of polymeric material.

As described above, the external size D160 spherical portion 160 is greater than the diameter D151b opening 151k, and therefore, during use of the spherical portion 160 (coupling element 156) is usually not separated from the flange 151 (process cartridge 2).

Opening 151k continues together with the locking part 151i and leans against the coupling element 156 (spherical part 160).

In more detail, in this embodiment, the difference between the external size D160 spherical portion 160 and a diameter of D151b opening 151k is about 0.4 mm, however, because the flange 151 and the spherical portion 160 is made of polymer material, they are relatively easily deformed in accordance with the external power.

Therefore, they are deformed, as a result, it is possible the transmission of the spherical portion 160.

Therefore, the connecting member 156 can be extracted from the flange 151.

First guarantee hold items that are not perceiving torque force element 150, block 21 of the drum, i.e. the drum 20 and the flange 151.

Then, clamping the driven portion 150A and the connecting portion 150c, which have receptive torque force part e, clamping tool 201, the mayor as pliers or forceps (medium with ribs, which uses the connecting portion 150C on Fig) (phase-entrainment), you can pull them in the direction (the direction indicated by the arrow X231) axis L150.

Due to this, the spherical portion 160 is in contact with the locking part 151i.

In addition, when the force of the pull increases, external size D160 spherical portion 160 is reduced, so that the locking portion 151i, opening 151k and the beveled surface 151n flange 151 is deformed outward in the radial direction from the axis L151 flange 151 (the direction indicated by the arrow in Fig. 24).

The beveled surface 151n flange 151 passes to the doorway 151k and tilted from the coupling element 156 to the side of the free end of the coupling element 156, which is located on the side of the drive part relative to the axial direction of the L151.

The beveled surface 151n represents the portion of the second surface of the regulating portion 151S.

More specifically, the beveled surface 151n tilted from the opening 151k, which is the first surface of the locking portion 151i, which is the regulatory part 151S, and passes from the coupling element 156 to the free end of the perceiver torque force element 150 with respect to the longitudinal direction of the drum. In other words, the spherical portion 160, a locking part which is the regulatory part 151S, which is radial the inside of the flange 151, specifies the doorway 151k and limb beveled surface 151n and when the diameter D151b opening 151k and external size D160 spherical portion 160 is the same, the connecting member 156 can be extracted from the flange 151 (step removal).

The force required for this is approximately 9-11 kg (88-108 N).

For effective use of traction force it is preferable to carry out the stretching operation in a state in which the axis L151 flange 151 and the axis L150 of the perceiver torque force element 150 are aligned with each other (the positional relationship shown in Fig).

The flexibility of the regulatory part of the flange 151 (locking portion 151i, opening 151k, beveled surface 15In) depends on dredging 151q1-8, which are located at positions on the outside in the radial direction of the flange 151 of the drum, as can be seen from the regulating portion 151S on Fig.

More, when the notches 151q great separation occurs easily, and when they are small, the separation is difficult.

In this embodiment, the connection sizes are chosen so that during normal operation hold function has been effective, and that during the removal can be accomplished using the above forces.

With this method, as described above, the connecting member 156 may be directly removed from the block 21 of the drum.

Accordingly, the operation Department of the drum 20 of the locking element 157 from each other becomes unnecessary, and therefore improved efficiency.

In addition, because you can work as an ordinary tool 201, such as pliers or tongs, not using a special tool, the work becomes simple.

In addition, when dismantling a small number of blocks drums, can be carried out manually removing and even without the use of conventional tools.

Therefore, the finger 155 you can pull or push of the spherical portion 160.

Due to this coupling element 156 can be divided into perceiving a rotational force element 150, the fingers 155 and the spherical portion 160.

In this case, the notches 151q (151q1-151q8) are provided in positions symmetrical with respect to the axis 151L flange 150.

More specifically, the recess 151q1 and notch 151q5, notch 151q2 and notch 151q6, and notch 151q3 and notch 151q7, and taking 151q4 and notch 151q8, respectively, are provided in positions symmetrical with respect to the axis 151L.

Due to this arrangement, when the connecting member 156 is removed from the flange 151, the deformation regulating portion is uniform relative to the circumferential direction of the flange 151, and therefore, the deformation of the toothed part s (i.e. gears) can be facilitated.

This applies also in case of installation of the coupling element 156 of the flange 151.

Axis 151L aligned with the axis 20L drum 20 and the axle 20L cylinder 20A of the drum (Fig, Fig). S symbol indicated the photosensitive layer.

(v) Removal and disassembly of the coupling element 156 (3)

Next will be described another way of removing the coupling element 156 directly from block 21 of the drum. On Fig-27, as well as Fig and 30 represented a cross section illustrating the method of removing the coupling element 156 directly from block 21 of the drum. In this case, they are cross-sections along the plane that includes the axis L151 flange 151 and the axis of the finger 155. On Fig presents a perspective image to illustrate the state according pig in three dimensions. Using these images will be described in detail.

First coupling element 156 rotate relative to the flange 151 in the direction of the arrow shown in Fig, around the center of the spherical portion 160 (step tilt coupling element). Then open end surface 155a of the finger 155.

After that, the end surface 155a of the finger 155 is being pushed to the limit surface 155b in the direction of the arrow shown in Fig. More specifically, in a state in which the connecting element 156 is inclined by the above stage tilt, finger 155, one end and the other end of which protrude from the spherical portion 160, pushed from one end to the other end (the phase displacement of the finger). As is isano above, between the pin 155 and the spherical part 160 generates the friction force, and therefore the finger 155 is retained, but the finger 155 can push, without destroying parts (coupling element 156) by means of the adjusting tool 202, such as a screwdriver with the tip. When the end surface 155a push at the surface of the spherical portion 160, the end surface 155b of the opposite side goes into a state in which there is a clearance relative to the inner surface 151m flange 151.

Then the connecting element 156 is slightly pulled in the direction of the arrow X271 on Fig. Due to this, the spherical portion 160 is in contact with the locking part 151i. In addition, the connecting member 156 rotates in the direction of the arrow X272. Due to this, the side end surface 155b became open to the outside.

Then, when the connecting element 156 bends, the axis and the axis L150 L151 intersect, and the connecting member 156 rotates around the axis L151 flange 151 on Fig in the direction of the arrow shown in Fig. 28.

Before pushing the end 155a of the finger 155, transmitting a rotational force to the surface 151h (Fig) and the finger 155 are in contact with each other, but the finger 155a pushed, and so it can be rotated without contact with the transmitting rotating force surface 151h. In addition, this rotation is not limited aceveda at the end 155b, because there clearance between the pin 155 and the beveled surface 151n.

The connecting element 156 is turned into the position in which the end 155b of the finger, as seen in the longitudinal direction, overlaps with a beveled surface 151n flange 151 (Fig).

As mentioned above, part of the finger, which were farther from the other end portion due to the above phase displacement of the finger moving on the beveled surface 151n, which is the second surface of the locking portion 151i, which is the regulatory part.

In addition, when holding the driven portion 150a of the perceiver torque force element 150 in the direction of the arrow shown in Fig corresponding to the direction of rotation of the coupling element 156, a force is applied.

When this force is applied, with such a positional relationship, the driven portion 150a is a place of application of force, the contact point between the pin 155 and the beveled surface 151n represent the centre Pl hinge, and the area of contact between the spherical part 160 and the locking part 151i represents the point of application.

As shown in Fig, the connecting portion 150c of the perceiver torque force element 150 is long, and the distance between the center P1 of the hinge and the point of application is shorter than the distance between the point of application of force and the center P1 of the hinge, and so does the so-called "lever rule". Due to the increase of this force external size D160 spherical portion 160 at the point of application decreases. And locking portion 151i, opening 151k and the beveled surface 151n flange 151 deformed outwardly relative to the radial direction of the axis L151 flange 151 (the direction of the arrow on Fig). Due to this, it becomes possible to remove the spherical portion 160 (coupling element 156) with flange 151. The force required at this point is about 8-l0 kgf (78-98 N).

As described above, the force directed toward the center of the hinge, is applied at the free end of the connecting element 156 with the center hinge in part of the finger that is moving through the beveled surface 151n, so that the connecting element 156 is removed from the flange 151 (step of removing the coupling element).

With this way it is possible to remove the connecting member 156 directly from block 21 of the drum. Accordingly, the operation Department of the drum 20 and locking element 157 from each other is unnecessary, and therefore, the efficiency increases. You can also work as an ordinary tool 202, such as a screwdriver, without using any special tool, and therefore, the work becomes much more simple. In addition, the force applied until SFU the practical part 160 (coupling element 156) is not separated from the flange 151 (Fig), small due to the "leverage effect".

(vi) the re-Assembly of block 21 of the drum (1)

The first method is essentially the same as the method of Assembly of block 21 of the drum described above. In other words, perceiving torque force element 150 is inserted in the flange 151 and a spherical portion 160. Then perceiving torque force element 150, the spherical element 160 and the fingers 155 are joined together by the fingers 155 and assemble the coupling element 156 with flange flange 151 (Fig). In addition, the locking element 157 is inserted in the direction of the arrow X4 and attach it to the flange 151 (Fig). Then the drum 20 and the flange 151 are connected to each other. In conclusion, the flange 152 of the drum on the non-drive side fixed to the other end portion of the drum 20 (Fig).

This re-use of the perceiver torque force element 150, obtained after dismantling and extracted, and the spherical portion 160 and the finger 155 can be reused after controlling degrees of damage and deformation.

(vii) the re-Assembly of block 21 of the drum (2)

On Fig and Fig represented a cross section illustrating a method of re-Assembly of block 21 of the drum in accordance with another embodiment. In this case, Fig and pig represented a cross section drawn along line S1-S1, shown in Fig. 13. On Fig presents széchenyi is, illustrating the block 21 of the drum according to another variant implementation.

First will be described with reference to Fig. In the method described above, assemble the coupling element 156 in the flange 151, and in this embodiment, the Assembly of the connecting element 156 carried out independently. This re-use of the perceiver torque force element 150, obtained during dismantling and extracted, and the spherical portion 160 and the finger 155 can be reused after controlling degrees of damage and deformation.

In addition, the locking element 156 is fixed to the flange 151, and then connect with each other, the drum 20 and the flange 151. In addition, the flange 152 of the drum on the non-drive side fixed to the other end portion of the drum 20 (Fig, Fig).

In conclusion, the connecting member 156 is pushed in the direction of the arrow shown in Fig, and the spherical portion 160 is put into contact with a beveled surface 151n, and when the said element is pushed further, the spherical portion 160 and at the beveled surface 151n flange 151, which is the regulatory part, deformed (see arrow on Fig). Due to this deformation of the spherical portion 160 (coupling element 156) can be placed in the recess 151f (Fig).

In this case, simplicity achieve deformation regulating portion 151S (stop the soup portion 151i, opening 151k, beveled surface 151n) flange 151 is dependent on notch 151q (Fig, Fig. 34), which is on the outside relative to the radial direction of the flange 151 of the drum, and this simplicity increases with the size of the notches 151q. In this embodiment, the dimensional relationship such that during use the notch usually performs the same function hold (stop) and to push an element easily. The regulating portion 151S inevitably has a locking portion 151i, opening 151k and the beveled surface 151n. The regulating portion 151S can have at least a locking portion 151i.

Therefore, when installing the coupling element 156 of the flange 151 of the spherical portion 160 is in contact with a beveled surface 151n, and the position of the center of the spherical portion 160 on the axis of the flange 151 is regulated. Due to this, the state of contact of the spherical portion 160 relative to the beveled surface 151n is uniform. Accordingly, the regulating portion 151S deformed uniformly, and therefore, the spherical portion 160 can be smoothly installed on the flange 151.

Therefore, even if the flange 151 and the spherical portion 160 is made of a polymeric material as in this embodiment, it is possible to prevent damage when they are in contact.

In this embodiment, the connecting member 156 is made of metal, and therefore is his durability is high.

However, the position of the center of the spherical portion 160 is set on the axis 151L. Accordingly, the connecting member 156 can be smoothly installed on the flange 151.

In the spherical portion 160, at least a portion in contact with the regulating part 151S, has a spherical configuration, when the connecting element 156 smoothly mounted on the flange 151.

The finger 155 can be inserted into the spherical portion 160 and perceiving torque force element 150, as if perceiving a rotational force element 150 in the flange 151, and therefore, the insertion of the finger 155 is simple. In addition, do not need to install the items from the side of the locking element 157, and therefore it can be produced as a single piece by molding of the flange 151 and the locking element 157 as a whole (integral flange 153), as shown in Fig. Due to this simplification is achieved stage of manufacture and reducing the cost of the product.

(viii) re-Assembly of block 50 of photosensitive element

After re-Assembly of block 50 of the light-sensitive element by a process performed in the reverse order compared with the case of disassembly of the unit 50 of the light-sensitive element. More specifically, cleaning the knife 52, the charger 12 and the block 21 of the drum set in the specified order. During the above reassembly is sportsouth new product, at least as drum 20.

(ix) the Method of disassembly and re-Assembly of block 40 processing device

On Fig presents perspective representation illustrating a method of disassembling unit 40 processing device. Now with links to pig will describe the method of disassembling unit 40 processing device.

First remove the side covers 55 at the opposite longitudinal ends of the block 40 processing device. The side cover 55 is attached to the accommodating toner chamber 40a by means of fixing means such as a not shown screw, and therefore, unscrewing them, you can remove the cover from the processor unit 40 of the device. Then remove the block 39 developing roller. Block 39 developing roller supported rotatably support elements 47 are provided on opposite ends of the developing roller 41. Each of the upper part and the lower part of the support element 47 is provided with two holes 47a, which coupled with the shaft 55c side cover 55. Accordingly, when the side cover 55 in both end parts removed, you can easily remove the block 39 developing roller block 40 processor device 40. In addition, the block 39 developing roller provided at each end of the developing roller 41 of the spacer element 48 to maintain a predetermined gap between the developing roller 41 and the drum 20. In addition to the, the end of the developing roller 41 is fitted with a toothed wheel 49 for transmitting torque forces on the developing roller 41 through engagement with the toothed wheel 151c of the flange 151. Then remove with the knife 42. Developing the knife 42 is attached to the accommodating toner chamber 40a by screws 59 at its opposite ends together with a cleaning element 38 to perform the cleaning operation while maintaining contact with the end surface of the developing roller 41. Therefore, rent a darkroom knife 42 by loosening both screws 59.

Now will be described the stage of re-filling with toner. A hole 37 for supplying toner (figure 2, Fig)that communicates with the chamber 44 of the supply of toner and Luggage toner, open through the above stages of disassembly. The camera 45 toner cartridge filled with toner through the opening 37 for supplying toner. Filling the toner is carried out by holding the processor unit 40 of the device so that the aperture 37 of the supply of toner is in the upper position and the chamber 45 of the toner is in the lower position. Use this tool feed, like a funnel, and repeat the filling of the toner falling asleep in his hole 37 for supplying toner.

As described above, after re-filling the toner assemble the processor unit 40 of the device. In case of re-Assembly of block 40 processing device conducts operations through process alright, reverse compared to the process stage of disassembly, as described above. More specifically, after refilling the toner set processor knife 42, block 39 developing roller and the side cover 55.

(x) How to re-assemble the cartridge 2

Operations are performed through process re-Assembly in reverse order compared to the disassembly process cartridge 2. More specifically, using the element 54 of the compound (3) are connected to each other for rotation block 50 light-sensitive element and the processor unit 40 of the device. In conclusion, in the state in which the presser spring 102 mounted on the protruding element 101 (Fig), shaft portion 101a protruding element 101 is inserted into the U-shaped support portion 51d of the frame 51 of the drum. Through the above steps, the process of re-manufacturing of ink cartridge 2 is completed.

In the process of Assembly, method of disassembly, re-manufacturing process cartridge different operators can carry out the stages simultaneously. In addition, the specialist in the art will be able to properly change the order of the steps outlined above or in the claims.

In addition, Assembly, disassembly and re-manufacture process cartridge can be performed by manual operations, auto op the radio using automated machines, and through a combination of manual and automatic operations. In addition, it is possible to properly use the tools.

In addition, this embodiment provides for the accumulation and disassembly of the used process cartridges. And parts removed from the process cartridge through the disassembly, assemble to create a stock of the same parts, respectively. Then these parts can be reused, but in some cases the detail of the number of parts (not reused) cannot be used, and then you can use the new item instead. In addition, variations of this variant implementation of the used process cartridges are piling up and dismantle. If the item of the number of parts (not reused) cannot be used, then instead you can use a reusable item from another used cartridge. Therefore, in the claims determination "referred to or provided for items, components, parts and devices covers and other elements, components, parts and devices, which have the same function, and that these details, parts and devices.

As described above, in accordance with the variants of the implementation described above, a process cartridge, which is easy to assemble. In addition to the, proposed process cartridge that is easy to disassembly. In addition, the simple method of re-manufacturing process cartridge. In addition, a method of re-manufacturing a reusable process cartridge, a developer which used to such an extent that the image quality of which meets the user is generated. In addition, you can easily re-fill the developer in the process cartridge from which the consumed toner. The essence of the constructions process cartridge according to the above variants of the implementation can be summarized as follows.

(1) the Process cartridge 2 is mounted with the possibility of removal in the primary site 1 electrophotographic device imaging, contains the drum 20 electrophotographic light-sensitive element and means 12, 41, 52 processing, driven by the drum 20 electrophotographic light-sensitive element. This cartridge includes a coupling element 156 for the perception of rotational power, which is designed for rotation of the drum 20 electrophotographic light-sensitive element, from the primary node in a state in which process cartridge is fitted the h with the possibility of removal in the primary site. This coupling element includes perceiving torque force element 150, which has perceiving torque force part 150e for the perception of the torque force on the free end portion and a spherical portion 160, mounted through the through insertion of a finger 155 on the rear end part of the perceiver torque force element. In addition, it includes a locking portion 151i, which is the regulatory part, passing through the inner peripheral surface of the flange 151, to install the coupling element 156 of the flange 151 drum mounted on the end of the drum electrophotographic light-sensitive element. The configuration of the locking portion 151i provides a gap G relative to the spherical portion 160 and closer to the configuration, passing over the surface of the spherical portion 160 of the free end portion than the plane, which is perpendicular to the longitudinal direction of the drum 20 and which passes through the center of the spherical portion 160.

While this design provides process cartridge, which can be easily assembled. In addition, ensure the process cartridge, which can be easily dismantled.

More specifically, the connecting member can be removed directly from block 21 electrophotographic photosensitive drum, and therefore, surgery is the branch of the drum electrophotographic light-sensitive element and the rotating element from each other is optional as a result the efficiency is excellent. In addition, disassembly can be performed using conventional tools such as pliers and forceps, without using any special tool.

(2) the Regulating portion 151S include a first surface 151k (opening)extending from the coupling element 156 to a free end part relative to the longitudinal direction from the regulating portion 151S.

(3) the Regulating portion 151S include a second surface 151n (cut surface), tinutul from the first surface 151k (aperture), and the second surface 151n (cut surface) passes from the coupling element 156 to a free end portion with respect to the longitudinal direction.

(4) Outer surface that faces the locking portion 151i of the flange 151, equipped with a helical gear 151c, and this helical gear transmits rotational force perceived coupling element 156 from the primary node 1, the developing roller 41.

(5) the Spherical portion 160 and the regulating portion 151S made of polymer material.

In addition, the nature of ways of removing the coupling element 156 according to the options the implementation described above can be summarized as follows.

(6) the connecting element 156 is removed from the flange 151 drum mounted on the drum 20 ele is trophotropism photosensitive element, used with the process cartridge 2 is mounted with the possibility of removal in the primary site 1 electrophotographic device imaging. In a state in which process cartridge 2 is installed in the primary site 1, the connecting member 156 perceives the rotating force for rotating the electrophotographic element of the drum 20 with the light-sensitive surface layer, from the primary node 1.

The connecting element 156 has perceiving torque force element 150, which has perceiving torque force portion 151e for the perception of rotational power in a free end portion, and a polymeric spherical portion 160 installed at the expense of end-to-end insertion of the finger 155 on the rear end part of the perceiver torque force element. This coupling element 156 is mounted on the flange 151 of the drum by regulating portion 151i (locking part), and the configuration of the regulating portion 151i (locking part) provides a gap G relative to the spherical portion 160 and closer than the plane, which is perpendicular to the longitudinal direction of the drum electrophotographic light-sensitive element, a flat surface and which passes through the center of the spherical portion 160, configuration, passing over the surface of the spherical part of the free end of the second part.

(i) the Method has the step of grasping, which capture the perceiver torque force element 150 of the connecting element 156 tool 201.

(ii) the Method has the step of removing the coupling element, which apply force to the tool 201 is directed to a free end part relative to the longitudinal direction in a state in which the perceiver torque force element is captured on said phase entrainment. Because of this, when the elastic deformation of the opening 151k locking portion 151i, which is a polymer regulating part, the beveled surface 151n and polymeric spherical portion 160, this polymer spherical portion 160 is removed from made of polymer material regulating portion (locking portion 151i), which is removed and the connecting member 156.

A method is proposed, in which the connecting member 156 mounted on the flange of the drum, which has a regulating portion 151S (locking portion 151i, opening 151k, the beveled surface 15In) of polymer material provided inside the flange 151 mounted on the end of the photosensitive drum 20. In this case, the regulating portion 151S protrudes inward relative to the radial direction from the flange 151.

The method includes the step of grasping, which capture the perceiver in awayday force element 150 of the connecting element 156. The method includes the step of installation of the connecting element. During installation of the connecting element providing an elastic deformation of at least one polymer side regulating portion 151S polymer spherical portion 160, this spherical portion 160 push inward regulating portion 151S in the direction of the axis 20L photosensitive drum 20, resulting in the installation of the coupling element 156 of the flange 151. In addition, the stage of withdrawal, which remove the connecting element 156 of the flange 151, has the following stages. He has stage-entrainment, which capture the perceiver torque force element 150 of the connecting element 156. He has a step of removing the coupling element, and in a state in which the perceiver torque force element 150 is captured by phase-entrainment, the spherical portion 160 is removed from the regulating portion 151S, deforming at least one side regulating portion 151S and the spherical portion 160 by the application of force in the direction of a free end portion, thereby remove the connecting element 156 of the flange 151.

The regulating portion 151S provided inside the flange 151 with an interval between them in the circumferential direction of the flange 151. Notch 151f also provided from the inside of the flange 151 and the outside of the regulating portion 151S rimentale to the radial direction of the flange 151. The outer surface of the flange 151 opposite the notches 151f equipped item s in the form of a gear wheel. Item s in the form of a gear wheel provided on the outer surface of the flange 151. This item is in the form of a gear wheel transmits torque force, perceived coupling element 156 from the primary node 1, the developing roller 41. In accordance with the method of removal of this connecting element can be removed coupling element directly from block electrophotographic photosensitive drum, so that the operation of the separation drum electrophotographic light-sensitive element and the locking element is optional. You can also work with other tools, such as pliers and forceps, without using any special tool.

(7) a method, in the exercise of which the connecting element 156 is removed from the flange 151 drum mounted on the drum 20 electrophotographic light-sensitive element used with the process cartridge 2 is mounted with the possibility of removal in the primary site 1 electrophotographic device imaging. The connecting element 156 perceives torque force to rotate the drum 20 electrophotographic light-sensitive element, from the primary node 1 in which the being, in which process cartridge 2 is mounted for removal in the primary site 1. The connecting element 156 has perceiving torque force element that is receptive torque force part for the perception of rotational power in a free end portion and a spherical portion mounted on a rear end portion of the perceiver torque force element through the through insertion of a finger 155.

(i) the Method has the step of tilting, which cant connecting member 156 relative to the axis of rotation of the flange 151 of the drum.

(ii) Method has a phase displacement of the finger 155, which are pushing the finger, and one and another ends of the fingers protrude from the spherical portion 160 in a state in which the connecting element 156 is tilted by means of the phase angle.

(iii) the Method has a phase advance of the finger, which make part of the finger, an additional protrusion on which the other end portion provided due to the phase displacement, to move the second surface (cut surface) of the flange 151 of the drum. In this case, the locking portion 151i as a control part provides a gap G relative to the spherical portion 160, and the configuration of its closer than the plane that is perpendicular to the longitudinal direction of the photosensitive drum 20 and which passage is t through the center of the spherical portion 160, configuration, passing over the surface of the spherical part of the free knight part. And this regulating portion 151S passes from the locking portion 151i and has a first surface 151k (opening)extending from the coupling element 156 to a free end portion with respect to the longitudinal direction. The second surface 151n (cut surface) curves from the first surface 151k (openings) passes from the coupling element 156 to a free end portion with respect to the longitudinal direction.

(iv) the Method has the step of removing the coupling element by application of force to the part of the finger, which is located on the free end portion of the connecting element 156 and moves along the second surface, resulting in the coupling element 156 is removed from the flange 151 of the drum.

In accordance with the method of removing the coupling element according to the options of implementation described above, the connecting member can be removed directly from the block electrophotographic photosensitive drum. Therefore, the operation of separation of the electrophotographic light-sensitive element drum locking element is optional, and therefore the working efficiency of the disassembly becomes excellent. In addition, it is possible to work without using special tools, and the benefits of the normal camping tool such as pliers, tongs, etc. and therefore, the work is simple. Through the use of leverage impact force, necessary for the immediate removal of the coupling element is small. In addition, the nature of the structures of block 21 electrophotographic photosensitive drum according to the options the implementation described above can be summarized as follows.

(8) the drum of the electrophotographic photosensitive member is used in block 21 of the drum electrophotographic photosensitive member used with the process cartridge 2 is mounted with the possibility of removal in the primary site 1 electrophotographic device imaging. He has a coupling element 156 for the perception of rotational power, which is designed for rotation of the photosensitive drum 20, from the primary node 1 in a state in which process cartridge 2 is mounted for removal in the primary site 1. The connecting element 156 has perceiving torque force element 150, which has perceiving torque force portion 151e for the perception of rotational power in a free end portion and a spherical portion 160 installed at the expense of end-to-end insertion of the finger 155 on the rear end portion of the perceiver torque force element 150. And this connection is sustained fashion element 156 is mounted on the flange 151, mounted on the end of the photosensitive drum 20 by means of the regulating portion 151S (locking portion 151i). The regulating portion 151S (locking portion 151i) provided along the inner peripheral surface of the flange 151 to install the coupling element 156 of the flange 151 mounted on the end of the photosensitive drum 20. In addition, the regulating portion 151S (locking portion 151i) provides a gap relative to the spherical part, and its configuration is closer than the plane that is perpendicular to the longitudinal direction of the photosensitive drum 20 and which passes through the center of the spherical portion 160, configuration, passing over the surface of the spherical portion 160 of the free end portion 160.

As described above, the design of block 21 of the drum is next. First, the connecting member 156 is mounted on a block 21 of the drum. This coupling element 156 has perceiving torque force element 150, which has perceiving torque force portion 151e for the perception of rotational power in a free end portion, and the spherical portion 160 installed at the expense of end-to-end insertion of the finger 155 on the rear end portion of the perceiver torque force element 150 to rotate the drum 20, and the aforementioned power is perceived from the primary node 1 electrophotographic device forms the simulation image. Block 21 of the drum is a cylinder 20A, which is provided with a photosensitive layer S on the peripheral surface, and the flange 151 of the drum is provided at the end of the cylinder 20A. The flange 151 of the drum has a regulating portion 151S of the polymer material, which acts outwards in a radial direction of the flange 151 of the drum inward from the flange 151 of the drum. The regulating portion 151S prevents movement of the spherical portion 160 in the longitudinal direction of the block 21 of the drum when installing the connecting element 156. And these regulating portion 151S made at intervals in the circumferential direction on the inside of the flange 151. In addition, the flange 151 of the drum has a recess 151q (151q1-151q8)provided in the regulating portion 151S outside relative to the radial direction of the flange 151 of the drum, and the notch 151q facilitates or permits the deformation regulating portion 151S outward relative to the radial direction of the flange 151. In addition, the flange 151 has a lot of torque transmitting force surfaces 151h (151hl-151h4) (transmitting rotating force parts), which are provided between the control parts 151S to receive the rotating force from the finger 155.

In addition, the regulating portion 151S of polymeric material is provided in the same positions as part C in the form of a gear wheel with respect to the longitudinal direction of the cylinder 20A in polymer clay is Mr. flange 151, and they are located at intervals in the circumferential direction of the cylinder 20A. In regulating portion 151S free end part relative to the longitudinal direction of the cylinder protrudes inward relative to the radial direction of the flange 151. In addition, the notch 151q (151q1-151q8) is provided between the regulating part 151S and the inner surface 151t (Fig, Fig) flange 151 relative to the radial direction. And this recess 151q facilitates or permits the deformation regulating portion 151S outward relative to the radial direction.

In this case, the regulating portion 151S easily deformed outwardly relative to the radial direction due to the fact that there notch 151q. In addition, the regulating portion 151S, which is deformed and then restored.

In addition, the position 151r (Fig denotes a connecting part for connecting the regulating portion 151S and the inner surface 151t (Fig, Fig) flange 151 with each other. Notch 151q provided between the connecting parts 151r. In other words, the connecting part 151r and the recess 151q provided as coils in the circumferential direction of the flange 151. Therefore, the regulating portion 151S easily deformed.

In addition, the connecting member 156 is mounted on the flange 151. The connecting element 156 perceives a rotational force transmitted from the main node 1 on the LAF is EC 1. The connecting element 156 has perceiving torque force element 150, which has perceiving torque force part 150e (150el-150e4) for the perception of the torque force on the free end portion and a spherical portion 160 installed at the expense of passing through your finger on the rear end part of the perceiver torque force element 150. In the state in which the connecting member 156 is mounted on the flange 151, the finger 155 moves in the circumferential direction and the longitudinal direction of the cylinder within the regulating portion 151S, and this regulating portion 151S provided in the circumferential direction of the flange 155. In addition, the connecting element 156 is configured to perform a turn around the flange 151 in a state in which the spherical portion 160 is moved in the circumferential direction, and is regulated by the movement in the longitudinal direction of the regulating part 151S. More specifically, the connecting member 156 is mounted for committing a turnover on the flange 151 in a state in which the spherical portion 160 moves within, in which the finger 155 is regulated by the movement of the regulating part 151S in the circumferential direction, and is controlled by the movement of the regulating part 151S in the longitudinal direction.

In accordance with block 21 of the drum, as described above, removal of the coupling element 156 turns out, the issue is passed. In accordance with block 21 of the drum described above, installation of the coupling element 156 is simple.

In accordance with the design of block 21 of the drum 21 becomes possible to remove the connecting element 160 directly from block 21 of the drum, and the operation Department of the drum 20 and locking element from each other is unnecessary, and therefore the efficiency is excellent. In addition, because you can work with other tools, such as pliers, tongs, etc. without using special tools, this benefit affects the ease of operation.

(9) Regulating portion 151S (locking portion 151i) have a first surface 151k (opening)extending from the coupling element 156 to a free end portion with respect to the longitudinal direction from the locking portion 151i as the regulating portion 151S.

(10) Regulatory parts have second surface 151n (cut surface), tinutul from the first surface 151k (opening)extending from the coupling element 156 to a free end portion with respect to the longitudinal direction.

(11) the Outer surface of the flange 151 of the drum, which is turned to the locking portion 151i, equipped with a helical gear 151c, and this helical gear transmits rotational force perceived coupling element 156 from the main knot is 1, on the developing roller 41.

In accordance with the variants of the implementation described above, it is possible to provide a simple way of removing the coupling element.

In accordance with the variants of the implementation described above, it is possible to provide a simple method of installation of the connecting element.

In accordance with the variants of the implementation described above, it is possible to ensure the unit electrophotographic photosensitive drum, from which you can easily remove the connecting element.

In accordance with the variants of the implementation described above, it is possible to ensure the unit electrophotographic photosensitive drum, in which you can easily install the connecting element.

Industrial applicability

In accordance with this invention can provide a simple way of removing the coupling element.

The invention may also provide a simple method of installation of the connecting element.

The invention can also provide a block electrophotographic photosensitive drum, removing the coupling element which is simple.

In addition, this invention can provide a block electrophotographic photosensitive drum, install the coupling element which is simple.

Although invented the e described with reference to disclosed here design it is not limited to the described details, and this proposal should be considered as covering such modifications or changes that may be within the purposes of the improvements or scope of the following claims.

1. Block electrophotographic photosensitive drum, comprising:
(a) a cylinder having a photosensitive layer on its outer periphery; and
(b) the flange of the drum, mounted on one end of the said cylinder and the said flange of the drum includes many of the projections provided inside the above-mentioned flange of the drum and protruding radially inward from the flange of the drum, with a gap diametrically between the said lugs, each lug has a notch for easy deformation of the mentioned tabs.

2. The unit according to claim 1, in which the area of each protrusion has an overhanging part.

3. The unit according to claim 1, in which another gap is formed between regulatory areas along the circumferential direction of the above-mentioned flange of the drum.

4. The unit according to claim 3, in which the number of such grooves are provided at intervals in the circumferential direction.

5. The unit according to claim 1 in which the said flange of the drum is made of resin.

6. The unit according to claim 1, further containing a gear portion provided along the outer surface of the above-mentioned flange of the drum, while the protrusions PR is usmotreny in the same position, as mentioned serrated portion relative to the longitudinal direction of the above-mentioned cylinder.

7. The way of removing the coupling element intended for removal from the flange of the drum mounted on the electrophotographic photosensitive drum, the coupling element for transmitting torque forces the flange of the drum, for rotating the electrophotographic photosensitive drum, and the said method comprises:
(i) the stage of the slope on which the tips of the connecting element relative to the axis of rotation of the drum flange, and the connecting member includes a rear end portion supported in the flange of the drum, which has a spherical portion and a finger passing through the spherical portion and a free end portion which has a receiving rotational force part for the perception of rotational power;
(ii) the phase displacement of the finger on which you push your finger from one end to the other end, and mentioned one end and the other end of the finger protrude outward from the spherical portion in a state in which the connecting element is tilted at the stage tilt, while the flange of the drum has a preventing portion for preventing disengagement of the spherical part of the flange of the drum, and the outer part provided on the outside prevents hour and in the direction of the axis of rotation of the flange;
(iii) the stage of advancement of a finger, which make part of the finger, an additional protrusion which in the end provided by the above-mentioned phase displacement, to move on the said outer part; and
(iv) a step of removing the coupling element, which remove the connecting element with the flange of the drum by application of force to the free end portion of the connecting element in the direction toward the center of the hinge and which is part of the promotion of the finger on the outer part.

8. Block electrophotographic photosensitive drum, comprising:
(a) a cylinder having a photosensitive layer on its outer periphery; and
(b) a drum flange provided at one end of the said cylinder and the said flange of the drum includes many of the projections provided inside the above-mentioned flange of the drum and protruding radially inward from the flange of the drum, with a gap diametrically between the said lugs, each lug has a notch for easy deformation of the mentioned tabs.

9. Unit of claim 8, in which the area of each protrusion has an overhanging part.

10. Unit of claim 8, in which another gap is formed between regulatory areas along the circumferential direction of the above-mentioned flange of the drum.

11. Unit of claim 10, in which the number of such grooves before the prescribed intervals in the circumferential direction.

12. The block of claim 8 in which the said flange of the drum is made of resin.

13. Unit of claim 8, further containing a gear portion provided along the outer surface of the above-mentioned flange of the drum, and the protrusions are provided in the same position as mentioned serrated portion relative to the longitudinal direction of the above-mentioned cylinder.