An imaging control method, apparatus, image forming device, and medium

Abstract

The present application provides an imaging control method, an imaging device, an image forming apparatus and a computer readable storage medium, which are used to solve the problem that the high voltage of the charging cleaning in the prior art cannot be normally closed in some cases. The method of the present application comprises: in response to a transfer end signal, performing a transfer cleaning step; the transfer cleaning step comprises a high voltage closing sub-step performed at a first time point; determining whether there is a charging cleaning step that cannot be completed before the first time point; if there is a charging cleaning step that cannot be completed before the first time point, the high voltage closing sub-step is delayed to be performed at a second time point later than the first time point. The present application can improve the safety of the image forming apparatus and save energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of imaging technology, in particular to an imaging control method, device, equipment and medium.

BACKGROUND

[0002] When the laser printer is imaging, the LSU (Laser Scanning Unit) scans the area on the photosensitive drum to be formed into an image to form a latent electrostatic image, and the latent electrostatic image forms a carbon powder image on the photosensitive drum after absorbing the carbon powder; the transfer roller transfers the carbon powder image from the photosensitive drum to the paper. In order to remove residual carbon powder, a "transfer cleaning" timing is also performed at the end of imaging, which principle is to apply a negative voltage to the transfer roller to make the residual carbon powder separate from the surface of the transfer roller. Since the transfer cleaning is the last step of the laser printing, therefore in the program design of some laser printers, all high voltages and motor drive signals of the photosensitive drum, the transfer roller and the transfer belt will be turned off after the transfer cleaning is completed, such as the charging high voltage provided to the charging roller, the developing high voltage provided to the developing roller and the transfer high voltage provided to the transfer roller, etc.

[0003] However, the imaging process may be cancelled due to user operation or lack of paper in the printer, etc., for example, when processing the nth page image, it is found that the paper box is out of paper, at this time the nth page image has been formed on the photosensitive drum, and the "charge cleaning" timing needs to be started to remove the image. The charge cleaning is different from the transfer cleaning, and the purpose is to remove the residual carbon powder on the photosensitive drum, and the charge cleaning needs to be started. Since the nth job is cancelled, the nth job will not execute the transfer cleaning timing, that is, in the above case, the charging high voltage of the nth page will be turned off with the transfer cleaning timing of the (n-1)th page, and there is no other normal closing means. If the transfer cleaning timing of the (n-1)th page is completed, the charging cleaning timing of the nth page has been triggered but the voltage is not pulled up, which may cause the charging voltage of the nth page to be pulled up after the high voltage of the (n-1)th page is turned off in the transfer cleaning timing, and there is no corresponding program mechanism to turn off the charging high voltage. This may cause the energy consumption of the printer to increase in some cases, and may also cause the safety to decrease.

SUMMARY

[0004] In order to solve the problem that the charging cleaning high voltage in the prior art cannot be normally turned off in some cases, resulting in reduced safety, an imaging control method, imaging device, image forming equipment and computer readable storage medium are provided.

[0005] According to a first aspect of the present application, there is provided an image forming control method, comprising: in response to a transfer end signal, performing a transfer cleaning step; the transfer cleaning step comprising a high voltage-off sub-step performed at a first time point; determining whether there is a charging cleaning step that cannot be completed before the first time point; and if there is a charging cleaning step that cannot be completed before the first time point, postponing the high voltage-off sub-step to be performed at a second time point later than the first time point.

[0006] Optionally, the if there is a charging cleaning step that cannot be completed before the first time point, postponing the high voltage-off sub-step to be performed at a second time point later than the first time point, comprises: if there is a charging cleaning step that cannot be completed before the first time point, monitoring a charging cleaning step end signal; determining the second time point based on the charging cleaning step end signal; and changing the high voltage-off sub-step to be performed at the second time point.

[0007] Optionally, the determining whether there is a charging cleaning step that cannot be completed before the first time point, comprises: determining whether there is a charging cleaning step being performed; or determining whether the charging cleaning step can be completed before the first time point according to a timing state of the charging cleaning step being performed.

[0008] Optionally, the image forming control method further comprises: if there is no charging cleaning step that cannot be completed before the first time point, performing the high voltage-off sub-step at the first time point.

[0009] According to a second aspect of the present application, there is provided an image forming apparatus, comprising: a transfer cleaning unit configured to perform a transfer cleaning step in response to a transfer end signal; the transfer cleaning step comprising a high voltage-off sub-step performed at a first time point; a first determining unit configured to determine whether there is a charging cleaning step that cannot be completed before the first time point, and to send a determination signal based on the determination result; and a postponing unit configured to postpone the high voltage-off sub-step to be performed at a second time point later than the first time point if the determination signal indicates that there is a charging cleaning step that cannot be completed before the first time point.

[0010] Optionally, the postponing unit comprises: a monitoring sub-unit configured to monitor a charging cleaning step end signal if the determination signal indicates that there is a charging cleaning step that cannot be completed before the first time point; a determining sub-unit configured to determine the second time point based on the charging cleaning step end signal; and a changing unit configured to change the high voltage-off sub-step to be performed at the second time point.

[0011] Optionally, the first determining unit is specifically configured to: determine whether there is a charging cleaning step being performed; or determine whether the charging cleaning step can be completed before the first time point according to a timing state of the charging cleaning step being performed.

[0012] Optionally, the imaging control device further comprises a second judging unit configured to execute the high-voltage closing sub-step at the first time point when the judging signal indicates that there is no charging and cleaning step that cannot be completed before the first time point.

[0013] According to a third aspect of the present application, there is provided an image forming device, comprising: a processor; a memory; and a computer program stored in the memory and configured to cause the image forming device to perform the method according to the first aspect of the present application when the computer program is executed.

[0014] According to a fourth aspect of the present application, there is provided a computer readable storage medium comprising a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform the method according to the first aspect of the present application.

[0015] One embodiment of the present application judges whether the charging and cleaning step can be completed before the first time point, and determines whether to postpone the execution time point of the high-voltage closing sub-step according to the judgment result, so that the problem that the charging and cleaning timing cannot be normally closed can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 Structure diagram of a printer of one embodiment;

[0018] Figure 2 Timing diagram of a timing that does not appear abnormally in the prior art;

[0019] Figure 3 Timing diagram of a timing that appears abnormally in the prior art;

[0020] Figure 4 Flow chart of a method of one embodiment of the present application;

[0021] Figure 5 Timing diagram of one embodiment of the present application.

[0022] Figure 6 Flow chart of a method of another embodiment of the present application;

[0023] Figure 7 Structure diagram of an image forming device of the present application;

[0024] Figure 8This is a schematic diagram of the imaging control device according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the delay unit in an embodiment of the present invention.

Detailed Implementation Methods

[0026] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Figure 1 The diagram shown is a schematic representation of the imaging structure of an image forming apparatus according to an embodiment of this application.

[0029] like Figure 1 As shown, 100 is the laser scanning unit (LSU).

[0030] 101, 102, 103, and 104 are developer boxes K (black, Key), M (magenta), C (cyan), and Y (yellow), respectively.

[0031] Motor 110 is the powder supply motor for developing cartridges 102 to 104.

[0032] 111, 112, 113, and 114 are the photosensitive drums corresponding to developing cartridges 101 to 104, respectively.

[0033] 121 is a transfer roller for the photosensitive drum 111.

[0034] 130 is the transfer belt. 120 is the transfer motor that drives the transfer belt 130, and also drives the K imaging component and the transfer roller.

[0035] 140 is a secondary transfer roller.

[0036] 150 represents the paper size, and the arrow 151 indicates the direction of paper movement.

[0037] 171 is the photosensitive drum, and 111 corresponds to the developing roller. 170 is a transfer cleaning device, such as a cleaning blade or a cleaning brush.

[0038] 181 is the charging roller corresponding to photosensitive drum 111.

[0039] The following shows an imaging example related to the photosensitive drum 111:

[0040] Charging process: The charging roller 181 fills the surface of the photosensitive drum 111 with charge.

[0041] Exposure process: The laser emitting unit 100 performs laser scanning on the area corresponding to the image to be printed on the photosensitive drum 111, causing a change in the charge distribution of the scanned area and thus forming a latent image.

[0042] Development process: The developing chamber 101 contains charged toner (such as toner). Under the action of the electrostatic field of the developing roller 171, the toner adheres to the latent image position of the photosensitive drum, forming a toner image.

[0043] One-time transfer process: Under the action of the electrostatic field of the primary transfer roller 121, the toner image is transferred from the photosensitive drum 111 to the transfer belt 130.

[0044] Secondary transfer process: The toner image on the transfer belt 130 is transferred from the transfer belt 130 to the paper 150 under the action of the electrostatic field of the secondary transfer roller 140.

[0045] Charging and cleaning process: The charging and cleaning device (not shown in the figure) removes residual toner on the surface of the photosensitive drum 111.

[0046] Transfer cleaning process: The transfer cleaning device removes residual toner from the transfer belt 130.

[0047] An existing imaging timing sequence is as follows: Figure 2 As shown, OPC represents the charging and cleaning high-voltage timing sequence, THV represents the transfer and cleaning high-voltage timing sequence, and the imaging controller is in T... 11 When the charging and cleaning sequence needs to be initiated, the timer will start at time T1 after the timer has run for t1. 12 The voltage is constantly pulled up to perform charging cleaning. On the other hand, T 13 The transfer cleaning was completed at the specified time, and the timer was t2 after T. 14 All high voltages will be shut off at all times, therefore the charging and cleaning high voltages are also at T. 14 Always off. Figure 2 In the example shown, no abnormal situations will occur.

[0048] Another imaging timing sequence in the prior art is as follows: Figure 3 As shown, in T 21 The time-lapse imaging controller determines when the charging and cleaning sequence needs to be initiated and starts the timer; while T 22 The transfer cleaning has been completed and it will be ready for T 23 All high voltages are shut off at all times. And during the timing period, T... 23 All high voltages have been shut off at the time, and at the end of the countdown T... 24The time point timer pulls up the voltage, so the charging cleaning time sequence is started, and if the job corresponding to the charging cleaning time sequence has been cancelled, there will be no next transfer cleaning time sequence to turn off the high voltage, so the charging cleaning high voltage will remain in the on state and cannot be turned off.

[0049] To solve the above problems, the present application provides an imaging control method, as shown in Figure 4 , comprising:

[0050] S100: in response to a transfer end signal, performing a transfer cleaning step; the transfer cleaning step comprises a high voltage off sub-step performed at a first time point.

[0051] S200: determining whether there is a charging cleaning step that cannot be completed before the first time point.

[0052] S300: if there is a charging cleaning step that cannot be completed before the first time point, delaying the high voltage off sub-step to be performed at a second time point later than the first time point.

[0053] Further description is made in combination with Figure 5 .

[0054] T 31 The imaging controller determines that it needs to enter the charging cleaning time sequence and starts the timer; and T 32 The transfer cleaning has been completed at T 32 , that is, the step S100 has been performed. Then the determination of S200 is performed, that is, it is determined whether the timer in the charging cleaning time sequence has been started before T 33 , and if the timer has been started, the time point of turning off the high voltage is delayed from the original T 35 to T 35 , so as to ensure that the T 34 at which the high voltage is turned off is later than the T 33 at which the timer pulls up the charging time sequence voltage. In the embodiment, the first time point can refer to T 31 , and the determination of whether the charging cleaning step can be completed before the first time point can be specifically that the timer is added with a time length t 10 , and the necessary time length t 20 of the charging cleaning is added, so as to calculate whether the obtained time point is before T 33 ; if the calculated time point is before T 33 , it is considered that there is no charging cleaning step that cannot be completed before the first time point, and the high voltage is turned off at T 33 ; if the calculated time point is not before T 33 , it is considered that there is a charging cleaning step that cannot be completed before the first time point, and the time of turning off the high voltage is changed to T 35 , wherein T35 may be determined by T 33 may be determined by T 10 may be determined by T 20 may be determined by T

[0055] It can be seen that the embodiment of the present application adds a judgment step when performing the transfer cleaning, for judging whether there is a charging cleaning timing being performed or to be pulled up, and judging whether the charging cleaning timing can be completed before the high voltage closing, and delaying the time of the high voltage closing if it cannot be completed. The embodiment of the present application can solve the problem that the charging cleaning timing cannot be normally closed in certain cases, thus improving the safety and reducing the overall energy consumption of the printer in some cases. Moreover, the embodiment of the present application does not need to add additional sensor circuit elements, nor does it need to change the original imaging timing, thus achieving the beneficial effect of improving the cost.

[0056] Further, S200 can further include:

[0057] S210: judging whether there is a charging cleaning step being performed; or S220: judging whether the charging cleaning step can be completed before the first time point according to the timing state of the charging cleaning step being performed.

[0058] In one embodiment, the controller can judge whether there is a charging cleaning step being performed by detecting the charging cleaning timing when performing the transfer cleaning step, for example, it can be detected whether the timer is started, if it is started, it indicates that there is a charging cleaning step being performed; if the timer is not started and the voltage of the charging cleaning is low, it indicates that there is no charging cleaning step being performed. Or in another implementation, if it is judged that the charging cleaning step is being performed, the necessary duration t 20 judging whether the charging cleaning step can be completed before the first time point.

[0059] Further, S300 can further include:

[0060] S310: if there is a charging cleaning step that cannot be completed before the first time point, monitoring the charging cleaning step end signal.

[0061] S320: determining the second time point based on the charging cleaning step end signal.

[0062] S330: changing the high voltage closing sub-step to be performed at the second time point.

[0063] In an implementation, whether the charging cleaning step is completed can be monitored by the imaging controller, for example, the completion time of the charging cleaning step can be estimated according to a preset estimation formula, the estimated completion time is taken as the second time point, and the high voltage is turned off at the second time.

[0064] Referring to Figure 7 A structural schematic diagram of an image forming device provided by an embodiment of the present application is shown in FIG. 7. The image forming device 700 can include a processor 710, a memory 720, and a communication unit 730. These components communicate through one or more buses. Those skilled in the art can understand that the structure of the image forming device shown in the figure does not constitute a limitation on the embodiments of the present application. It can be a bus structure or a star structure. It can also include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0065] The communication unit 730 is configured to establish a communication channel, so that the image forming device can communicate with other devices. It receives user data sent by other devices or sends user data to other devices.

[0066] The processor 710 is the control center of the image forming device. It connects various parts of the image forming device through various interfaces and lines, executes software programs, instructions, and / or modules stored in the memory 720, and calls data stored in the memory, to perform various functions of the image forming device and / or process data. The processor can be composed of integrated circuits (ICs), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs connected together. For example, the processor 710 can only include a central processing unit (CPU). In the embodiments of the present application, the CPU can be a single operation core or can include multiple operation cores.

[0067] The memory 720 is configured to store execution instructions for the processor 710. The memory 720 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0068] When the execution instructions in the memory 720 are executed by the processor 710, the image forming device 700 can perform Figure 4 or Figure 6 some or all of the steps in the embodiments shown.

[0069] In specific implementations, the embodiments of the present application further provide a computer storage medium, wherein the computer storage medium can store a program, and the program can include some or all steps in each of the embodiments of the image processing method provided by the embodiments of the present application when executed.

[0070] In specific implementations, the embodiments of the present application further provide a computer program product, wherein the computer program product contains executable instructions, and when the executable instructions are executed on a computer, the computer executes some or all steps in each of the embodiments of the image processing method provided by the embodiments of the present application.

[0071] The embodiments of the present application further provide an imaging control device 800, as shown in Figure 8 The imaging control device 800 includes:

[0072] The transfer cleaning unit 810 is configured to execute a transfer cleaning step in response to a transfer end signal, and the transfer cleaning step includes a high-voltage closing sub-step executed at a first time point.

[0073] The first judging unit 820 is configured to judge whether there is a charging cleaning step that cannot be completed before the first time point, and send a judgment signal based on the judgment result.

[0074] The postponing unit 830 is configured to postpone the high-voltage closing sub-step to be executed at a second time point later than the first time point when the judgment signal indicates that there is a charging cleaning step that cannot be completed before the first time point.

[0075] As shown in Figure 9 The postponing unit 830 includes: a monitoring sub-unit 831 configured to monitor a charging cleaning step end signal when the judgment signal indicates that there is a charging cleaning step that cannot be completed before the first time point; a determining sub-unit 832 configured to determine the second time point based on the charging cleaning step end signal; and a changing unit 833 configured to change the high-voltage closing sub-step to be executed at the second time point.

[0076] The first judging unit 820 is specifically configured to judge whether there is a charging cleaning step being executed, or judge whether the charging cleaning step can be completed before the first time point according to a timing state of the charging cleaning step being executed.

[0077] The imaging control device 800 further includes a second judging unit 840 configured to execute the high-voltage closing sub-step at the first time point when the judgment signal indicates that there is no charging cleaning step that cannot be completed before the first time point.

[0078] Those skilled in the art can clearly understand that the technical solution in the embodiments of the present application can be realized by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution in the embodiments of the present application can be embodied in a form of a software product in essence or in a form of a part of the software product that contributes to the prior art. The computer software product can be stored in a storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, and the like, and includes a plurality of instructions to cause a computer device (which can be a personal computer, a server, or a network device, and the like) to execute the methods described in the various embodiments or some parts of the embodiments of the present application.

[0079] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An imaging control method characterized by, comprising: in response to a transfer end signal, performing a transfer cleaning step; the transfer cleaning step comprising a high-voltage-off sub-step performed at a first time point; determining whether there is a charging cleaning step that cannot be completed before the first time point; if there is a charging cleaning step that cannot be completed before the first time point, postponing the high-voltage-off sub-step to be performed at a second time point later than the first time point; wherein the second time point is a time point calculated by adding a time length of entering a charging cleaning timing to a necessary time length of the charging cleaning.

2. The imaging control method according to claim 1, characterized by, The if there is a charging cleaning step that cannot be completed before the first time point, postponing the high-voltage-off sub-step to be performed at a second time point later than the first time point, comprises: if there is a charging cleaning step that cannot be completed before the first time point, monitoring a charging cleaning step end signal; determining the second time point based on the charging cleaning step end signal; changing the high-voltage-off sub-step to be performed at the second time point.

3. The imaging control method according to claim 2, characterized by, The determining whether there is a charging cleaning step that cannot be completed before the first time point, comprises: determining whether there is a charging cleaning step being performed; or determining whether the charging cleaning step can be completed before the first time point according to a timing state of the charging cleaning step being performed.

4. The imaging control method according to claim 1, characterized by, Further comprising: if there is no charging cleaning step that cannot be completed before the first time point, performing the high-voltage-off sub-step at the first time point.

5. An imaging control device, characterized by, comprising: a transfer cleaning unit configured to, in response to a transfer end signal, perform a transfer cleaning step; the transfer cleaning step comprising a high-voltage-off sub-step performed at a first time point; a first determining unit configured to determine whether there is a charging cleaning step that cannot be completed before the first time point, and send a determination signal based on a determination result; a postponing unit configured to, when the determination signal indicates that there is a charging cleaning step that cannot be completed before the first time point, postpone the high-voltage-off sub-step to be performed at a second time point later than the first time point; wherein the second time point is a time point calculated by adding a time length of entering a charging cleaning timing to a necessary time length of the charging cleaning.

6. The apparatus of claim 5, wherein, The postponing unit comprises: a monitoring sub-unit configured to, when the determination signal indicates that there is a charging cleaning step that cannot be completed before the first time point, monitor a charging cleaning step end signal; a determining sub-unit configured to determine the second time point based on the charging cleaning step end signal; a changing unit configured to change the high-voltage-off sub-step to be performed at the second time point.

7. The apparatus of claim 6, wherein, The first determining unit is specifically configured to: determine whether there is a charging cleaning step being performed; or determine whether the charging cleaning step can be completed before the first time point according to a timing state of the charging cleaning step being performed.

8. The apparatus of claim 5, wherein, Further comprising: a second determining unit configured to, when the determination signal indicates that there is no charging cleaning step that cannot be completed before the first time point, perform the high-voltage-off sub-step at the first time point.

9. An image forming apparatus, comprising: a processor; a memory; the memory has stored therein a computer program which, when executed, causes the image forming apparatus to perform the method of any one of claims 1-4.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium includes a stored program, wherein the computer readable storage medium controls the device where the computer readable storage medium is located to execute the method of any one of claims 1-4 when the program runs.

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