Mechanism for head elements functioning checking, method for head elements functioning checking and method for head elements quantity checking

FIELD: electricity.

SUBSTANCE: mechanism for head elements functioning checking in a printer equipped with a head containing multiple head elements has a controller controlling the switch for selective connection of the resistor element envisaged in each head element to the resistor element. The testing power supply source supplies test voltage to the serial circuit composed of the testing resistor element and the resistor element. The split voltage measurement unit measures spit voltage of the serial circuit composed of the testing resistor element and the resistor element in response to the controller control signal.

EFFECT: simplification of means for detection of faulty elements of the thermal printer without their heating during cheek for failures; provision for the possibility to determine the total quantity of elements of the head installed in the printer.

8 cl 6 dwg

 

The disclosure of the patent application of Japan No. 2010-012389, filed January 22, 2010, including the description, drawings and claims, is incorporated by reference.

The technical field to which the invention relates

The present invention relates to the verification of the functioning of the element head, the method for checking the functioning of the element head and the method of checking the number of elements of the printhead in the printer, containing the crown.

Prior art

In the patent JP-A-06-227018 discovered how pertaining to the detection of a defective element of thermal head in thermal printer.

In the patent JP-A-06-227018 disclosed a method of controlling the excitation of thermal head, containing the following steps: excitation of the element heads, included in thermal head; determining, does a preset temperature in the element head after a predetermined time interval; and providing the indication, if after a predetermined time interval has not been reached preset temperature in the element head (item 1 of the formula).

In addition, in patent JP-A-2000-141730 on pages 4-6 and figure 1 is disclosed a method of detecting a fault in thermal head of thermal printer.

In the patent JP-A-2000-141730 disclosed a method of detecting malfunction of thermal head that detects the change of resistance of the resistors of the many elements of the head, included in thermal head used in a thermal printer, and the method comprises: the first stage, which checks whether the maximum value and the minimum value of the resistance of many elements of the head in a predetermined range during the initial setup when replacing thermal head; and a second phase in which check whether the resistance of each of the set of elements of the head in the range between the maximum value and the minimum value obtained in the first stage (paragraph 1, of the formula).

In the methods disclosed in patents JP-A-06-227018 and JP-A-2000-141730 perform measurement by successive application of voltage to the heater for all elements of the head. Thus, when performing the specified operation detection is carried out, the heating elements of the head (for printing).

The invention

Thus, the task of at least one variant of the present invention is the provision of a mechanism to check the functioning of elements of the head, which is capable of detecting defective elements of thermal head in thermal printer without heating elements of the head.

Another objective of at least one variant of the present invention is the provision of a method for checking the functioning of elements of the head, which is capable of a simple way to discover is tested defective elements of a thermal printer using the above-mentioned mechanism checks the functioning of elements of the head.

Another problem, at least one variant of the present invention is providing a method to check the number of elements of the head, under which are a number of elements of thermal head mounted on thermal printer using the above-mentioned mechanism checks the functioning of elements of the head.

To solve the above problems according to the first aspect of embodiments of the present invention provides a mechanism for checking the functioning of elements of the printhead in the printer, which is equipped with a head that includes many elements of the head, and the checking mechanism of the functioning of elements of the head contains: test resistor element; a controller that controls the switch to selectively serial electrical connection of the resistor element provided in each of the elements of the head, with the test resistor element; a test power source that supplies a test voltage to the serial circuit consisting of the test resistor element and resistor element; and a measurement unit of a divided voltage, which measures the divided voltage serial the circuit consisting of the test resistor element and resistor element, in response to the control signal of the controller.

In using the implement this configuration, you can track changes divided voltage by a serial electrical connection of the resistor element in the element head with the test resistor element and applications to him the test voltage. Thus, it is possible to detect whether the resistor element of the printhead is defective element based on the change of the divided voltage. You can also provide a mechanism to verify the functioning of elements of the head, which is capable of detecting defective elements of thermal head in thermal printer without heating elements of the head, by providing a test power source, which is different from the power source for excitation to perform the normal printing process, and by setting the test voltage test power source to a level at which the resistor elements are not heated.

In addition, the checking mechanism of the functioning of elements of the head controller can memorize a table which indicates the relationship between the number of resistor elements electrically connected in series with the test resistor element, and a divided voltage, and can check the functioning of each of the elements of the head, turning to the table.

When using this configuration, through an advance memorizing tables it is possible to find the relationship between the number of resistor elements, the applied test voltage and the divided voltage. For example, in the case when the and electrically connected in series one element head and the test resistor element, and the applied test voltage, if the element head intact, then the divided voltage must decrease. Using the change of the divided voltage can be checked for proper functioning of each element of the head.

In addition, the checking mechanism of the functioning of elements of the head elements of the head can represent elements of thermal head, the resistor element may be a heating element, the switch may include a shift register, and schema for the latch, and the test voltage may be lower than the voltage of the printing thermal head.

When using this configuration, since the test voltage is lower than the voltage of the printing thermal head, it is possible to check the functioning of the element head without heating element of the head in contrast to conventional printing process.

According to the second aspect of embodiments of the present invention provides a method for checking the functioning of elements of the printhead in the printer, which is equipped with a head that includes many elements of the head, and method for checking the functioning of elements of the head contains: control shift register for selective sequential electrical connection of the resistor element provided in each of the elements of the head, with a test resistor of the second element; the application of the test voltage to a serial circuit consisting of the test resistor element and resistor element; measuring the divided voltage series circuit consisting of the test resistor element and resistor element, by applying a test voltage to a serial circuit; and testing to ensure proper functioning each of the elements of the head, on the basis of the output signal of the shift register and the measured divided voltage.

By simply adding a test power source and the test resistor element to the known configuration of thermal head and perform each of the above stages can automatically detect the faulty elements of thermal printer.

According to a third aspect of embodiments of the present invention provides a way to check the number of elements of the printhead in the printer, which includes a cylinder containing many elements of the head, the scheme of the latch and the shift register for inputting print data corresponding to one line into the head through the circuit-latch, and which performs printing using elements of the head, and the way to check the number of elements of the head contains: input data number of elements in the shift register in the form of print data corresponding to odnostroi; finding a divided voltage of a series circuit consisting of the test resistor element and a resistor element provided in each of the elements of the head, when the input data number of elements in the shift register; and checking the number of elements head on the basis of the aforementioned finding.

With this configuration, it is possible to provide a way to check the number of elements of the head, which is capable of detecting the number of elements of thermal head mounted on the printer, using the above validation mechanism functioning of elements of the head.

In addition, the method checks the number of elements of the head instead of the above-mentioned finding, it is preferable to use the method for checking the functioning of elements of the printhead in the printer described above.

When using this configuration it is possible to automatically find the number of elements of the head in addition to the detection of a defective element of thermal printer.

In addition, the method checks the number of elements of the head data check the number of elements contain multi-digit number corresponding to the first number of the head elements in a predetermined standard, and at least one digit of the first digit is 1 and the other category is equal to 0.

In this configuration, due to the use of data to check the number of items that contain multi-digit number corresponding to the number of elements of the head in a predetermined standard, where at least one digit of the first digit is 1 and the other bits set to 0, it is possible to detect changes of the divided voltage when the application of the test voltage. If the divided voltage is changed, determines that the test voltage is applied to the element head, in which the entered data is "1". Thus, it is possible to verify that the number of elements of the head, at least, equal to, or greater multi-digit number in the input data number of elements corresponding to one line.

The way to check the number of elements of the head may also contain: if the number of elements of the head when the test is not specified, then the input to the shift register as print data corresponding to one line, the scan data of the number of head elements, which contain multi-digit number corresponding to the second number of cells of the head, the lower the first number, in a predetermined standard, and at least one digit of the first digit is 1 and the other bits are 0; and re-executing the above-mentioned detection and verification is I. The way to check the number of elements of the head may also contain a repetition of the stages of item 7 of the formula with a gradual reduction of multi-digit numbers in the scan data, the number of elements in accordance with a predetermined standard, while verification is not specified the number of elements of the head.

If the divided voltage is not changed, it can be argued that the number of elements in head-less multi-digit number in the input data number of elements corresponding to one line. Thus, if the divided voltage does not change, then the method checks the number of elements of the head provides a consistent reduction of the multi-digit number in the data check the number of elements and the determination of the number of elements head multi-digit number, when divided voltage has changed. Thus, with this configuration, you can easily check the number of elements of the head.

Brief description of drawings

In the accompanying drawings:

figure 1 depicts a diagram illustrating the configuration of a thermal head according to a variant implementation of the present invention;

figure 2 depicts an example diagram illustrating a mechanism for the review of the functioning of elements of the head according to a variant implementation;

3 of the displays chart illustrating the relationship between the divided voltage and the number of items included head;

figure 4 depicts a flowchart illustrating a method for checking the functioning of elements of the head according to a variant implementation;

figure 5 depicts a diagram that illustrates many examples of the number of head elements in thermal head according to a variant embodiment of the invention; and

6 depicts a flowchart illustrating a method of checking the number of elements in thermal head according to a variant implementation.

Detailed description of embodiments

Next, with reference to the accompanying drawings describes a mechanism to verify the functioning of elements of the head according to the variant of the present invention.

Figure 1 presents a block diagram illustrating the internal configuration of thermal head in thermal printer according to a variant implementation of the present invention.

In figure 1, thermal head 2 includes items 3 heads, which form the head, the actuator 5 latch (switch) and the register 7 offset (switch), which includes triggers (FF) of n stages. In register 7 offset output data (DO) register 7-1 shift of the first stage is connected to the data input (DI) register 7-2 shift of the second stage. DO register 7-2 shift of the second stage connected to the DI register 7-3 add the ha third stage. And so on, DO register 7-(n-1) shift (n-1)th stage is connected with the DI register 7-n shift n-th stage.

The actuator 5 of the latch includes an input output STB strobe signal input and output LAT signal latch. In addition, the respective shift registers with 7-1 through 7-n contain the input conclusions DI, which receives serial data, which is the print data, input CLK output clock signal and the output DO of which are serial data overflow register 7 offset.

Serial data corresponding to one line are input one bit at a time according to a clock signal from the input / output DI register 7-1 shift the first stage in accordance with a control signal from the controller 10 of the head in the main body of thermal printer. Then at that moment in the register 7 offset remembered the serial data corresponding to one line, these serial data corresponding to one line stored in the actuator 5 latches the parallel data according to the signal latch.

Then drive 5 latch that receives the gate signal, delivers electric current to the elements 3 heads in accordance with the recorded data is "1"when receiving the gate signal. In accordance with the submitted electric current is applied to the roll paper or the like, which the media is write, construct an image corresponding to one line (one point), and then the feed mechanism paper (not shown) performs a paper feed corresponding to one point. Printing is performed by repeating the above procedure.

Printing using a conventional thermal printer is performed according to the procedure described above. Failure of any of numerous elements of the defective head element of the head is not able to perform normal printing. Failure of the element head includes disconnection and a short circuit element. In a state of disconnection as a result of printing a white stripe, and in a state of short circuit in the print result is obtained black stripe.

In any case, a good print result cannot be achieved. If the bands appear, in particular, in the resulting print the barcode, then there is an error reading the data. If it is possible to determine the position of the defective item, then printing the barcode can be performed taking into account the positions of the serviceable items, excluding the position of the defective item. Thus, it is possible to successfully determine the position of the faulty element.

The checking mechanism of the functioning of elements of the head in thermal printer

The following describes the mechanism of checking the functioning of elements of the head.

Fur is ISM test the functioning of elements of the head to detect defective items without heating elements of the head is described with reference to figure 2-4.

As shown in figure 2, the mechanism 1 check the functioning of elements of the head under this option includes thermal head 2 and the circuit 20 head control.

In thermal head 2 is composed of many elements 3-1 to 3-n (resistor element) heads, which include heating elements and the transistors Tr1 through Trn excitation, corresponding to the elements 3-1 to 3-n of the head. The transistors Tr1 through Trn excitation are the keys which are selectively enabled in accordance with the excitation signal from the actuator 5 of the latch. If the excitation signal is injected into the transistors Tr1 through Trn excitation, the corresponding elements 3-1 on 3n head create heat. The transistors Tr1 through Trn excitation configured in such a way that the transistor excitation related to data "1" in the data latch corresponding to one line earthed heating elements of the head 24 V Century

Scheme 20 control head includes a controller 10 heads and controls on/off of the power source for the excitation voltage 24 V (test power source) and source of the VDD supply to test the functioning of the elements of the 3 heads in accordance with the switching signal (SW24VA or SWVDDH). Voltage (for example, 3.3 V) of the source of the VDD supply to test the functioning lower than the tension of the giving of the excitation, constituting 24V.

The source of the VDD supply to test the functioning of the serially connected elements 3 heads (the head elements are connected in parallel) through the switching element Q3, such as field-effect transistor (FET), on/off of which is determined by the signal (SWVDDH) switching from the controller 10 of the head, the resistor R4 (test resistor element) detection and protection diode D1. The controller 10 of the head controls the register 7 of the shift actuator 5 of the latch and the switching element Q3 for selective sequential electrical connection elements 3 heads with resistor R4 detection. In addition, the source of the VDD supply to test the function takes the test voltage 3.3V in series circuit between the elements 3 heads and a resistor R4 detection.

In addition, the controller 10 head reads the voltage of the connection point between the resistor R4 detection elements 3 heads with o READ_HEAD. That is, the controller 10 head measures the divided voltage of the series circuit elements 3 heads and a resistor R4 detection. At this point, the controller 10 of the head functions as a unit of measurement divided voltage.

In the controller 10 of the head is stored a table that indicates the relationship between the divided voltage and the number of elements of the head, the first floor is the ski connected in series with resistor R4 detection. In particular, the controller 10 head stores a table in which the horizontal axis presents the number of items included 3 heads, which are simultaneously supplied with electric current, and the vertical axis represents the divided voltage read from the output READ_HAED, as shown in figure 3. Here, when the voltage source VDD power supply to test operation is 3.3 V, the resistance value of the resistor R4 detection is 220 Ohms, and the resistance value of thermal head 2 is 650 Ohms, while the divided voltage of the connection point between the resistor R4 detection elements 3 heads is calculated as VDDx(650/m)/(220+650/m). Here m is the number of items included 3 heads.

As shown in figure 3, when the number of items included heads is 0, the divided voltage is 3.3 Century When the number of items included head divided voltage decreases. Since the reduction of a divided voltage of items included head under the numbers 1 to 3 relative big thanks in advance memorizing table 3 and references for this table, based on the obtained values of the divided voltage, you can determine the number of items included heads.

Method validation function is mapping elements of the head in thermal printer

The following describes the method for checking the functioning of elements of the head.

The way to test the failure type "short circuit" elements of the head is described with reference to the block diagram in figure 4.

First, the controller 10 heads resets the register 7 offset, setting all values in the register 7 offset to 0 (step S1). Then the applied voltage VDD (=3.3 V) for checking operation to determine the divided voltage (step S2). Determine is whether the divided voltage 3.3V (step S3). If it is determined that the divided voltage is 3.3V (step S3: Yes), it determines that all of the elements of the 3 heads no failure type "short circuit", then the procedure ends (step S4).

On the other hand, if the divided voltage is 3.3V (step S3: No), it determines that any of the elements 3-1 to 3-n head has a failure type "short circuit" (step S5). Then to check the position of the short-circuited element controller 10 head delivers the "1" input on the DI register 7 offset and delivers the clock signal input CLK output (step S6). Thus, the first component 3-1 head is energized to test the function.

The controller 10 of the head is changed if the divided voltage of the series circuit between the resistor R4 OBN is pursued and element 3-1 head (step S7). If the divided voltage has not changed from 3.3V (step S7: No), it determines that there is a short circuit of the first element head (step S8), and then memorized the position of the failure type "short circuit". Then, the procedure goes to step S10. That is, if the divided voltage has not changed, despite the increase in per unit number of items 3 heads, it means that there is a short circuit of the first element of the head. In addition, determine whether the clock pulses corresponding to the number of all elements of the 3 heads provided in thermal head 2 (step S10). If the clock pulses corresponding to the number of all elements that are not entered (step S10: No), the input output DI register 7 offset is "0" and the clock signal (step S11). If it is determined that the input clock pulses corresponding to the number of all elements (step S10: Yes), the procedure ends.

On the other hand, if in step S7 the divided voltage has changed from 3.3V (step S7: Yes), it determines that there is no short circuit of the first element head (step S9), and performs step S10. That is, if the divided voltage is changed (decreased) by increasing the number of items 3 heads per unit, it indicates the absence of a short circuit of the first element of the head.

Then, if R is the result of the determination at step S10 is "No", after step S7, the procedure is repeated according to the number (n) of elements, and if the result of determination at step S10 is "Yes", then the procedure terminates.

According to the above option by a selective sequential electrical contact between the resistor elements 3-1 to 3-n of items 3 heads with resistor R4 discovery and the application of the voltage VDD to test the function it is possible to track the change of the divided voltage. On the basis of the change of the divided voltage it is possible to detect whether the corresponding elements 3-1 to 3-n of the head is defective. Then, as to perform a normal printing process, the source of the VDD supply to test operation is provided separately from a power supply 24 V for excitation, when the source of the VDD supply to test the functioning of the used voltage of 3.3 V, which do not heat the elements 3 heads, it is possible to detect a defective element of thermal head in thermal printer without heating element 3 heads.

In addition, consonant with this version, as is provided in advance memorizing table indicating the relationship between the divided voltage and the number of head elements, which are electrically connected in series with resistor R4 detection, you can easily implement cooperation is the relationship between the number of head elements, to which is supplied a voltage VDD for verify operation, and the divided voltage. In that case, when electrically connected in series one element head and the test resistor R4, and the applied voltage 3.3V, if the item 3 heads in norm, then the divided voltage is reduced. Using the change of the divided voltage, you can check the health of each element 3 heads.

Furthermore, according to this variant of the invention, since the faulty elements of thermal printer can be detected automatically simply by adding source VDD power supply to test the function and the detection resistor R4 to the known configuration of thermal head and perform the respective steps shown in figure 4, the user has no need to perform complex manipulation settings.

The way to check the number of the head elements in thermal head

The following describes how to check the number of elements of the head.

Here the number of elements of the head is not irregular and random number, and refers to the number of elements of the head, the corresponding set of types that satisfy a predetermined standard. For example, as shown in figure 5, the number of elements of the head is 384, 512, 576 or 640 (dots), which can be divided into blocks PA (dot). You can determine whether the number of elements in the head with one of the above numbers.

The way to check the number of elements in thermal head described with reference to the block diagram of figure 6

First, if we assume that the number of elements of the head corresponds to the maximum number of pixels (640), the controller 10 of the head takes on input the conclusions of the DI register 7 offset together with a clock signal serial data (validation data number of elements), in which the maximum discharge (640-I point) is equal to "1"and other bits (from the first to the 639-th point) is equal to "0" (step S21). After that determine is whether 3.3V divided voltage of a series circuit consisting of elements 3 heads and a resistor R4 detection (step S22). If it is determined that the divided voltage is 3.3V (step S22: No), it determines that the number of elements of the head is 640 (step S23).

If it is determined that the divided voltage is 3.3V (step S22: Yes), the controller 10 of the head believes that the number of elements of the head is equal to the second maximum number (576 pixels) and gives input on the findings of the DI register 7 offset together with a clock signal serial data (data checking quantities of elements), in which the maximum discharge (576-I point) is equal to "1"and other bits (the first point on 575-th point) is equal to "0" (step S24). The village is e again determine the value is divided voltage 3.3V (step S22). If it is determined that the divided voltage is 3.3V (step S22: No), determines that the number of elements of the head corresponds to 576 points (step S23).

If it is determined that the divided voltage is 3.3V (step S22: Yes), the controller 10 of the head believes that the number of elements of the head is equal to the next highest number (512 points) and gives input on the findings of the DI register 7 offset together with a clock signal serial data (validation data number of elements), in which the maximum discharge (512-I point) is equal to "1"and other bits (the first point on the 511-th point) is equal to "0" (step S24). Then again determine is whether the divided voltage 3.3V (step S22). If the divided voltage is 3.3V (step S22: No), determines that the number of elements of the head is 512 pixels (step S23).

If it is determined that the divided voltage is 3.3V (step S22: Yes), the controller 10 of the head believes that the number of elements of the head is equal to the next highest number (minimum number is 384 dots), and supplies the input conclusions DI register 7 offset together with a clock signal serial data (data checking quantities of elements), in which the maximum discharge (384-I point) is equal to "1"and other bits (the first point on 383-th point) is equal to "0" (step S24). Then again, ODA is really, the value is divided voltage 3.3V (step S22). If it is determined that the divided voltage is 3.3V (step S22: No), determines that the number of elements of the head is 384 points (step S23).

The way to check the number of elements of the head under this option provides input data number of elements in the register 7 offset as print data corresponding to one line, the detected divided voltage and the subsequent verification of the number of elements of the head based on the result of this detection. Originally entered the data check the number of elements contain multi-digit number corresponding to the maximum number of elements of the head (640 pixels in this embodiment) in a predetermined standard, and its maximum rank is 1 and the other bits set to 0. If using the originally entered data to check the number of elements number of elements of the head is not defined, then the register 7 offset enter other data check number of items. Entered the second time data check the number of elements contain multi-digit number corresponding to the second maximum number of elements of the head (576 pixels) at a predetermined standard, and its maximum rank is 1 and the other bits set to 0. After the addition of newly define the divided voltage and check the number of elements of the head based on the result of determination divided voltage. Not yet determined the number of cells of the head, the above-described method is repeated with a gradual reduction of multi-digit numbers in the scan data, the number of elements in accordance with a predetermined standard.

In this embodiment, only the maximum discharge in the scan data, the number of elements equal to 1 and other bits are 0. However, at least one digit of the first digit (i.e. the maximum discharge in the scan data, the number of elements can be equal to 1.

Thus, under this option it is possible to automatically determine the number of elements 3 heads in addition to the detection of defective elements of thermal printer. In this embodiment, the register 7 offset data is entered check the number of items that contain multi-digit number corresponding to the number of elements in a predetermined standard, and at least one digit of the first digit is 1 and the other bits are 0, and a change is detected divided voltage at the time of application of voltage VDD to test the function. If the divided voltage is changed, determines that the voltage VDD to test the function applied to the element head, in which the entered data is "1". Thus, it is possible to determine that the number of elements of the head is about at least equals or exceeds multi-digit number, contained in the input serial data of one line. On the other hand, if the divided voltage has not changed, we can assume that the number of elements in head-less multi-digit number in the input serial data of one line. That is, if the divided voltage is not changed, the multi-digit number in the data check the number of elements is reduced, for example, 576 points 512 points and 364 points and as the number of elements of the head define a multi-digit number at the time of change of the divided voltage. In this way, using the method checks the number of elements of the head according to this variant, you can easily check the number of elements of the head.

The present invention is not necessarily limited to the described embodiment. For example, in the checking mechanism of the functioning of elements of the head you can use the features of the head, which includes resistor elements other than elements of thermal head containing the heating elements. In the validation mechanism of the functioning of elements of the head you can use a switch other than the shift register and the schema type latch. In this embodiment of the invention applied to a thermal printer that contains thermal head. The present invention can also be applied in another PR is ntere, such as an inkjet printer or a laser printer.

1. The checking mechanism of the functioning of elements of the printhead in the printer, which is equipped with a head that includes many elements of the head, and the checking mechanism of the functioning of elements of the head contains:
the test resistor element;
the controller is configured to control the switch to selectively serial electrical connection of the resistor element provided in each of the elements of the head, with the test resistor element;
test power source configured to supply a test voltage to the serial circuit consisting of the test resistor element and resistor element; and
the unit of measurement divided voltage, configured to measure a divided voltage of a series circuit consisting of the test resistor element and resistor element, in response to the control signal of the controller.

2. The checking mechanism of the functioning elements of the head according to claim 1, wherein the controller is arranged to memorize a table which indicates the relationship between the number of resistor elements electrically connected in series with the test resistor element, and a divided voltage, and the scan function is ment of each of the elements of the head, referring to the table.

3. The checking mechanism of the functioning of elements of the head according to claim 1, in which
the head elements are elements of thermal head,
resistor element is a heating element,
the switch includes a shift register, and schema for the latch, and
test voltage below the voltage of the printing thermal head.

4. Method for checking the functioning of elements of the printhead in the printer, which is equipped with a head that includes many elements of the head, and method for checking the functioning of elements of the head includes the steps:
control shift register for selective sequential electrical connection of the resistor element provided in each of the elements of the head, with resistor element;
apply the test voltage to a serial circuit consisting of the test resistor element and resistor element;
measure the divided voltage of a series circuit consisting of the test resistor element and resistor element, by applying a test voltage to a serial circuit; and
check whether there is a malfunction of each of the elements of the head, on the basis of the output signal of the shift register and the measured divided voltage.

5. The way to check the number of elements of the printhead in the printer, the cat is which includes a head, containing many elements of the head, the scheme of the latch and the shift register for input into the head through the circuit-latch the print data corresponding to one line, and which performs printing using elements of the head, and the way to check the number of elements of the head includes the steps are:
enter data check the number of elements in the shift register in the form of print data corresponding to one line;
find the divided voltage of a series circuit consisting of the test resistor element and a resistor element provided in each of the elements of the head, when the input data number of elements in the shift register; and
check the number of elements head on the basis of the aforementioned finding.

6. Method for checking the functioning of elements of the head according to claim 5, in which the data check the number of elements contain multi-digit number corresponding to the first number of the head elements in a predetermined standard, and at least one digit of the first digit is 1 and the other bits set to 0.

7. Method for checking the functioning of elements of the head according to claim 6, further containing a stage, on which:
if the number of elements of the head when the test is not defined, then enter in the shift register, as print data, appropriate to ejstvujuschij one line, validation data the number of head elements, which contain multi-digit number corresponding to the second number of cells of the head, the lower the first number, in a predetermined standard, and at least one digit of the first digit is 1 and the other bits are 0; and
repeatedly perform the above-mentioned detection and validation.

8. Method for checking the functioning of elements of the head according to claim 7, further containing a stage at which repeat the stages of paragraph 7, with a gradual reduction of multi-digit numbers in the scan data, the number of elements in accordance with a predetermined standard, while verification is not specified the number of elements of the head.



 

Same patents:

FIELD: printing.

SUBSTANCE: invention relates to printing. The printing device that implements the method of filling the liquid chamber of the jet head includes a printing head having a liquid chamber and the nozzles, and a reservoir that stores liquid that is fed into the printing head. The device additionally includes a liquid supply channel which supplies the liquid from the reservoir to the liquid chamber; a feeding pump provided in the channel of the liquid feeding; a liquid return channel which returns the liquid from the liquid chamber into the reservoir, a recirculation pump which is provided in the channel of the liquid return. Moreover, the device also comprises a control unit that controls the feeding pump and the recirculation pump, while the liquid is initially filled into the liquid chamber, the control unit activates the recirculation pump in order to set the liquid chamber in a state of negative pressure, and then activates the feeding pump.

EFFECT: group of inventions enables to improve speed of the supply of the ink into the liquid chamber.

11 cl, 14 dwg

FIELD: printing.

SUBSTANCE: proposed invention discloses a printing device and method of its operation, as well as a combination of the printing device and consumable material. The method of work of the printing device, which is made with the possibility of placing a consumable material, comprises the stage of reading of identifier from the consumable material. Then the identifier is compared with a list of any previously used identifiers related to empty consumables, and creation of indication of invalidity, if there is a coincidence.

EFFECT: group of inventions ensures the implementation of reliable authentication of consumables, thereby eliminating their illegal use.

34 cl, 15 dwg

FIELD: printing industry.

SUBSTANCE: proposed ink composition for inkjet printing includes a polyurethane material having an average molecular weight of from about 50000 to about 500000, in an effective amount of from about 0.2 wt % to about 5 wt %. The composition also includes a solvent in an effective amount of from about 5 wt % to about 20 wt %, and an anionic surfactant in an effective amount of from about 0.01 wt % to about 3 wt %. Also a method of creation of this ink composition and an ink jet printing system, comprising a substrate and the indicated ink composition is provided.

EFFECT: proposed ink composition for ink jet printing provides improved readiness for publication in an open state.

6 cl, 3 tbl, 13 ex

FIELD: printing.

SUBSTANCE: recording control device controls the unit of the recording mechanism that records on the recording medium by means of the recording head. Unit of image magnification increases the data entered from outside to create the image data to be recorded. Pattern buffer temporarily stores the image data generated by the unit of image magnification. The recording control unit reads the image data stored in the pattern buffer, and controls the recording mechanism unit so as to record the image data of reading on the recording medium by means of the recording head. The recording control unit controls the rate of the recording of the unit of the recording mechanism based on the rate of image data creation in a unit of image magnification.

EFFECT: provision of opportunity for stable recording operation due to prevention of interruption the recording operation owing to reduction of recording data entered from an external device.

16 cl, 7 dwg

FIELD: printing.

SUBSTANCE: ink cartridge includes a site of detection the light, the first triangular prism and the second triangular prism made of transparent material and placed in the site of detection the light for receiving, deflection or refraction of light emitted by light-emitting element in the printer. Two surfaces of the second triangular prism are in contact with the ink in the ink cartridge. When the ink cartridge contains ink and is placed in the printer, the light emitted by the light-emitting element is fully reflected by the first triangular prism and refracted by the second triangular prism into the ink, and will not be perceived by the photodetector in the printer. When the ink in the ink cartridge is expended, the light is fully reflected by the second triangular prism to the first triangular prism, and is then reflected on the photodetector, and respectively, the printer detects that the ink is expended.

EFFECT: simplified manufacturing due to reducing the number of details in the site of ink detection.

7 cl, 11 dwg

FIELD: printing.

SUBSTANCE: reference element is formed of a material which contains a mixture of first resin and second resin, which structural formula is different from the first resin, and is moulded between the feeding element and the substrate of the ejecting element, so that is an integral part of the feeding element.

EFFECT: head for ejecting fluid and method of its manufacture provide the ability to compound the reference element and an element for supplying ink with high impermeability and low probability of delamination, ie with high affinity to each other.

19 cl, 17 dwg, 2 tbl

FIELD: polygraphic industry.

SUBSTANCE: this invention covers porous ink-absorbing item designed for application in an ink cartridge of an inkjet printer. This porous ink-absorbing item principally contains 2 portions: first portion is made of milled cellular material, and the second portion is made of non-milled cellular material; herewith, the first and the second portions are evenly distributed along porous ink-absorbing item and the second specified portion mass is less or equal to the first portion mass. This invention also covers an ink cartridge containing porous ink-absorbing item.

EFFECT: backpressure maintenance within an ink tank, increase of ink-absorbing capacity.

11 cl, 3 dwg

FIELD: technological processes.

SUBSTANCE: device for liquid pumping comprises a base with chamber sections, inlet and outlet channels, a diaphragm with flexible zones, piezocrystals, and also a source of pulse voltage, a control system and a unit of commands input for alternate supply of a voltage pulse to an appropriate piezocrystal.

EFFECT: increased accuracy of pumped liquid quantity dosing.

4 dwg

FIELD: printing industry.

SUBSTANCE: device for retransfer printing on cylindrical print medium is provided with at least one printing blanket, which is set into relative aftermotion in front of the cassette transporting print media. The surface of the printing blanket in the device according to the invention exceeds the surface of the print medium, and the device is additionally provided with means for digital printing, which carry out printing by spraying paint on the varied zone of the surface of the said printing blanket that is equal to the surface of the print medium.

EFFECT: provision of capability of sealing print media of various sizes with coating of image of the entire working surface of the medium without changing the printing blanket, and better print quality and elimination of overlaps.

17 cl, 10 dwg

FIELD: process engineering.

SUBSTANCE: fluid ejecting head comprises ejecting element silicon substrate with one surface provided with generator of power for fluid ejection and substrate support. Proposed method consists in that pitch composition to be cured on heating is placed between said substrate and support element so that portion of rear surface of substrate one surface comes in contact with both sides of support element. Then, light comprising at least ultraviolet rays and infrared rays is emitted onto said pitch composition from the side of ejecting element substrate through silicon plate to cure said composition.

EFFECT: higher printing quality of said head.

8 cl, 5 dwg

FIELD: printing engineering, in particular, printing devices (printers) with a thermo-jet printing head.

SUBSTANCE: the cartridge has a reservoir for ink, in which a stable negative pressure is maintained. For maintaining of a stable negative pressure in the reservoir use is made of a single component fulfilling simultaneously the functions of the reservoir walls and the regulator of negative pressure in the reservoir. A bag of film material is used as such a component.

EFFECT: provided a high-quality printing due to a uniform feed of ink during the whole service life, minimized number of components for fabrication process.

3 cl, 4 dwg

FIELD: jet printers.

SUBSTANCE: ink feed system has writing jet printing element, having low shape coefficient of height and having a resource of ink for applying to carrier, receiving ink. Onto writing element, having low shape coefficient of height, an adapter 50 is placed, allowing to mount this printing element with possible removal from shoe for printing element. Dimensions of shoe provide for placement of printing element, having large shape coefficient of height. Cartridge 20 for jet printing includes body, printing head on the body, base surfaces on body for precise positioning of body in fixed reproducible position in first construction of carriage, and group of electric contacts of cartridge, mounted on body of cartridge and electrically connected to printing head. Group of electric contacts is placed on body to provide for electric contact to appropriate group of electric contacts of first construction of carriage, when a cartridge is mounted in first construction of carriage. Construction of adapter is mounted on body of cartridge to produce assembly of construction of adapter or cartridge, while this assembly is meant for placement in second construction of carriage, configuration of which provides for placement of jet printing cartridge of other dimension in fixed reproducible position. Second construction of cartridge has second set of electric contacts of carriage. This provides for use of cartridge of one dimension and configuration in printer with shoe of carriage, meant for use with cartridge of other dimension of configuration.

EFFECT: higher efficiency.

4 cl, 13 dwg

Image creator // 2249241

FIELD: forming of labels to protect against forging, copying of information.

SUBSTANCE: device can also be used for direct transformation of properties of materials and production of micron and sub-micron size functional structures without using resistive masks. Device has vacuumed camera inside which accelerated electron beam source is placed with divergence angle of 20 degrees. Device also has spatial modulator and unit for registering images; both last members are placed on the way of the beam. Spatial modulator is made in form of plate provided with holes. Side walls of all the holes are provided with pair of electrodes disposed opposite to each other. One of electrode of each pair is connected with power source through common wire and the other one - through controlled commutator. Micron and sub-micron sizes of elements of images are provided as well as increase in carrying capacity of any hole, simultaneous and independent control of carrying capacity of all the holes and creation of multi-layer images without spatial modulator and means for fixing images getting used .

EFFECT: improved efficiency of operation.

11 cl, 3 dwg

FIELD: ink-jet printers, cartridges with ink and a holder for the cartridges with ink.

SUBSTANCE: the invention concerns to a cartridge with ink and a holder of cartridges with ink used for an ink-jet printer. The cartridge with ink contains: a main body having the first wall and a front side wall, which intersects with the first wall of the main body; a sector of connecting electrodes located on a part of the first wall of the main body of the cartridge with ink and containing at least one connecting electrode electrically linked with a storage element; a sector of ink delivery located on the front side wall; a positioning sector for direction of a cartridge with ink on a positioning element of the printing device, at that the position sector directs the positioning element of the printing device to turn the sector of the connecting electrodes in the direction, in essence, in parallel to the mentioned sector of the connecting electrodes. Such solution improves reliability of the electrical connection of the cartridge and its holder.

EFFECT: the invention improves reliability of the electrical connection of the cartridge and its holder.

21 cl, 23 dwg

FIELD: jet printing cartridges.

SUBSTANCE: universal body of jet printing cartridge has several ink reservoirs, which can be used for applications utilizing monochromatic and polychromatic printing. Direction of ink flow is implemented by simple alternation of compaction of printing head mounted on body, while this compaction can be a configuration of glue. Such implementation allows mixing of ink contained in all reservoirs, in the head with same cartridge configuration, or to direct appropriate ink to different portions of printing head for polychromatic printing applications. Same construction of body can be utilized for two or more cartridge configurations. Construction of nose piece forms several ink channels, passing from respective ink reservoirs to area of printing head assemblage. For mounting printing head and finishing configuration of slits for ink, flowing from reservoirs to matrix (matrices) of printing head nozzles, a compaction is applied.

EFFECT: higher efficiency.

4 cl, 8 dwg

FIELD: production of a replaceable ink container for the ink feeding in an ink-jet printing system.

SUBSTANCE: the invention is pertaining to the field of production of a replaceable ink container for the ink feeding in an ink-jet printing system. At that the printing system has its site mounted on the scanning carriage. At the site has an inlet opening for a liquid and the electrical contacts electrically connected to a section of control of the printing system work. At that the replaceable container has a tank for ink, and the lower butt surface perpendicular to a leading butt surface. At that the lower butt surface forms an outlet opening for a liquid and has a form to couple with the liquid inlet opening located on the site. Besides the replaceable ink container also has a keeping information electric device coupled to the ink container connected for storage of information on the replaceable ink container and the electric contacts mounted on the leading butt surface and electrically connected with the electric device for information storage. At that each of electric contacts located on the ink container has the form to interact with each of the electric contacts on the site for a working connection with the electric device for the information storage and with a part of the printing system control and a means of a catcher located on the leading butt surface in immediate proximity to the butt surface. At that the catcher has a means of catching for engagement of a corresponding means of catching located on the mounting surface to fasten the leading butt surface of the ink to the site. The offered development also concerns to the method ensuring the electrical connection and the liquid communication between the replaceable ink container and the site. The offered method and the device ensure production of the replaceable ink containers, which one easily mounted and removed. At that an ink container installation ensures the reliable liquid and electric coupling with the printing system. At that the ink containers should be simple in production and so reducing the cost of the ink feeding, and consequently also reducing the cost of one page print.

EFFECT: the invention ensures production of the replaceable ink containers easily mounted and removed, providing the reliable liquid and electric connection with the printing system, simplification of their production, reduction of cost and consequently reducing the cost of one page print.

8 cl, 21 dwg

Printing device // 2256560

FIELD: printing devices.

SUBSTANCE: device has feeding section, meant for feeding paper for printing one sheet after another separately, and transporting route, passing, actually, linearly for transporting printed data carrier, having high rigidity. A portion of feeding section is overlapped with transporting route in vertical transverse direction, but does not in direction, perpendicular to direction of transporting of carrier of printed information.

EFFECT: simplified construction, lower costs, higher reliability, broader functional capabilities.

18 cl, 22 dwg

FIELD: optics.

SUBSTANCE: device has light radiation source, deflecting device and optical image generation circuit, including optical element for forming an image, position so that when aligned to direction of additional scanning main beam of deflected light beam passes portion excepting optical axis. In first variant optical element has surface with alternating grade of sagittal non-sphericity, which changes along direction of main scanning of said optical element. In range of effective scanning of surface value of displacement of position of falling light beam in direction of additional scanning is made the same. In second variant of scanning device optical element is made so that on surface for scanning position of images of two light beams, falling in a slanting manner on surface, perpendicular to rotation axis of said deflecting device, at angles γ and γ' (0≠γ<γ'), almost coinciding with each other.

EFFECT: broader functional capabilities, higher efficiency.

8 cl, 30 dwg

FIELD: correct distribution of ink points of the respective colors on printing environment on printing on it of the color image within a wide range of natural colors.

SUBSTANCE: the printing system has a printer that produces points of a great number of various inks for various inks for image printing, and a printer controller that fed control information to the mentioned printer for control of production of points of a great number of various inks. The printing controller has an assembly for determination of the conditions of ejection of drops of a great number of the main colored and dark inks making use of the input video data, area of the additional length of the light absorption wave, and a unit of output of control information, which produces information for the printer. The printer has an input unit of control information, which obtains control information for determination of the conditions of ejection of the drops of the great number of the main colored black an inks and dark inks, as well as a unit for formation of points, which produces points of a great number of the main colored and dark inks.

EFFECT: enhanced degree of freedom at determination of the conditions of ejection of drops of the respective ink, reduced amount of consumed ink, provided high quality of final printed image.

51 cl, 52 dwg

FIELD: ink cartridges.

SUBSTANCE: one-sided valve is placed in chamber for ink of ink cartridge and includes support part of substrate, support part of wall, projecting at angle from inner side of support portion of substrate, support portion of clamp, bending towards inner side of support portion of wall and support portion of head, projecting from support portion of clamp and made with through opening. Compacting assembly for valve is kept in contact with through opening of supporting portion of head due to pressure difference. This compacting assembly is made as a single whole with block portion and placed in outlet channel for ink.

EFFECT: higher efficiency.

4 cl, 48 dwg

Up!