A control method, device, medium and product of an image forming apparatus

Abstract

This application provides a control method, apparatus, medium, and product for an image forming apparatus. The method includes: receiving an image forming instruction that includes an imaging mode for performing an image forming operation; and, during the execution of the image forming operation, performing a printhead cleaning operation that matches the imaging mode, thereby indirectly controlling the intensity of printhead cleaning and avoiding excessive or insufficient printhead cleaning to a certain extent. This can reduce ink waste and increase imaging speed or improve imaging quality, thereby enhancing the user experience.

Description

Technical Field

[0001] This application relates to the field of image forming technology, and more specifically to a control method, apparatus, medium, and product for an image forming device. Background Technology

[0002] An image forming apparatus is a device that forms an image on an imaging medium using imaging principles, such as a printer, copier, fax machine, multifunction image making and copying apparatus, electrostatic printing apparatus, and any other similar apparatus.

[0003] Image forming apparatuses typically include printheads and drive units. During an image forming operation, under the pressure difference generated by the drive unit, ink in the corresponding printhead is ejected through the nozzles onto the imaging medium, thus forming an image (referred to as the "imaging process"). Because there may be areas on the image forming page that do not require imaging, or the resulting image may be a solid color or a single-color pattern, some printheads may not perform imaging inkjet operations for extended periods during the imaging process. This can lead to ink drying in the nozzles, causing clogging. Furthermore, due to the "discontinuous" nature of the imaging process—the printhead moves back and forth within a page—the nozzles are exposed to air even when not ejecting ink in non-imaging areas, which can also cause ink drying and clogging. This can further lead to the nozzles failing to eject ink promptly or failing to guarantee the quality of the ejected ink when imaging inkjet operations are needed next time, affecting the overall quality of the image.

[0004] To address the aforementioned issues, relevant technologies typically perform an inkjet cleaning operation on all printheads after each printhead has completed a preset number of imaging operations along the main scanning direction during the imaging process. This means the same printhead cleaning operation is used regardless of user needs. However, different users may have different requirements for imaging performance. If user needs do not match the printhead cleaning operation, excessive printhead cleaning may result in ink waste and reduced imaging speed, while insufficient printhead cleaning may reduce image quality, leading to a poor user experience.

[0005] It should be noted that the information disclosed in the background section of this application is intended only to enhance the understanding of the general background of this application, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] This application provides a control method, apparatus, medium, and product for an image forming device, which helps to solve the problem in the related art that excessive or insufficient printhead cleaning may lead to ink waste and reduced imaging speed, or may reduce image quality, resulting in a poor user experience.

[0007] In a first aspect, embodiments of this application provide a control method for an image forming apparatus, comprising: Receive an image forming instruction, the image forming instruction including an imaging mode for performing an image forming operation, the imaging mode being used to characterize imaging performance; During the image forming operation, a nozzle cleaning operation matching the imaging mode is performed.

[0008] In one possible implementation, the imaging mode includes a first imaging mode and a second imaging mode, and the step of performing a nozzle cleaning operation matching the imaging mode includes: If the imaging mode is the first imaging mode, then the nozzle cleaning operation is not performed during the process of forming a page of images; If the imaging mode is the second imaging mode, then a nozzle cleaning operation is performed during the process of forming a single image page. The imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

[0009] In one possible implementation, performing the nozzle cleaning operation during the execution of a page image forming job includes: During the execution of a page image forming job, when the number of times the printhead of the image forming apparatus moves along the main scanning direction is equal to a preset number of moves threshold, a first flash spray operation is executed. The first flash spray operation is used to control the printhead to perform a first preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

[0010] In one possible implementation, the imaging mode includes a first imaging mode and a second imaging mode, and the step of performing a nozzle cleaning operation matching the imaging mode includes: If the imaging mode is the first imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation with the first cleaning intensity is performed. If the imaging mode is the second imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation with a second cleaning intensity is performed, where the second cleaning intensity is higher than the first cleaning intensity. The imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

[0011] In one possible implementation, the second imaging mode includes a first imaging sub-mode. If the imaging mode is the second imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation of a second cleaning intensity is performed, including: If the imaging mode is the first imaging sub-mode, then when the imaging medium type is a non-ordinary type, after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation of the second cleaning intensity is performed.

[0012] In one possible implementation, if the imaging mode is the first imaging sub-mode, then when the imaging medium type is a normal type, after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation of the first cleaning intensity is performed.

[0013] In one possible implementation, the second imaging mode further includes a second imaging sub-mode, and the method further includes: If the imaging mode is the second imaging sub-mode, then after completing one page of image formation and before executing the next page of image formation, the nozzle cleaning operation of the second cleaning intensity is performed; The imaging speed of the second imaging sub-mode is lower than that of the first imaging sub-mode, and the imaging quality of the second imaging sub-mode is higher than that of the first imaging sub-mode.

[0014] In one possible implementation, after receiving the image forming instruction, the method further includes: In response to the image forming command, a printhead cap device seal release operation is performed, which enables the printhead to move and perform a second preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

[0015] In one possible implementation, after the nozzle cap device seal release operation is performed, the following is also included: During the first waiting time, a second flash spray operation is performed. The first waiting time is the time after the printhead cap device seal release operation is completed and the imaging data corresponding to the image forming operation is received. The second flash spray operation is used to control the printhead to perform a third preset number of ink ejection operations in the flash spray area of ​​the image forming device.

[0016] In one possible implementation, the method further includes: After the image forming operation is completed, if the imaging data corresponding to the next page image forming operation is not received within the second waiting time, the nozzle cap device sealing operation is performed. The nozzle cap device sealing operation is used to control the nozzle to complete the sealing in the moisturizing area of ​​the image forming device after performing the nozzle cleaning operation corresponding to the nozzle cap device sealing operation.

[0017] In one possible implementation, the printhead cleaning operation corresponding to the printhead cap device sealing operation is used to sequentially perform a fourth preset number of ink scraping operations and a third flash spray operation on the printhead; The scraping operation is used to control the scraping component to clean the surface of the printhead, and the third flash spray operation is used to control the printhead to perform a fifth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

[0018] In one possible implementation, the printhead cleaning operation corresponding to the printhead cap sealing operation is used to sequentially perform a fourth flash spray operation, a fourth preset number of ink scraping operations, and a third flash spray operation on the printhead. The fourth flash spray operation is used to control the printhead to perform a sixth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus; the scraper operation is used to control the scraper component to clean the printhead surface; and the third flash spray operation is used to control the printhead to perform a fifth preset number of ink ejection operations in the flash spray area.

[0019] In one possible implementation, during the execution of the image forming task, the method further includes: When the image forming apparatus is in an error state, a nozzle cleaning operation corresponding to the error duration is performed. The error duration is used to characterize the duration of the error state. The cleaning intensity of the nozzle cleaning operation corresponding to the error duration is positively correlated with the error duration.

[0020] In one possible implementation, the method further includes: When the image forming apparatus is in a non-image forming state, the trigger time for the nozzle cleaning operation corresponding to the preset cleaning frequency is determined. At each of the aforementioned trigger intervals, a nozzle cleaning operation corresponding to the aforementioned cleaning frequency is performed.

[0021] In one possible implementation, the printhead cleaning operation corresponding to the cleaning frequency includes a flash spray operation, the number of which is negatively correlated with the cleaning frequency, and the flash spray operation is used to control the printhead to spray ink once in the flash spray area of ​​the image forming apparatus.

[0022] In one possible implementation, the method further includes: After starting the image forming apparatus and performing the first nozzle cleaning operation, start the timer; According to a preset time period, the first number of times the nozzle cleaning operation is performed within the time period is accumulated; If the first cleaning count within the time period exceeds the preset alarm count, a prompt message will be output; If the first number of cleaning cycles within the timer period is greater than the first preset maximum allowable number of cleaning cycles, then the nozzle cleaning operation will not be performed before the timer is turned off.

[0023] In one possible implementation, the method further includes: The cumulative number of times the image forming apparatus performs the nozzle cleaning operation for the second time; If the second cleaning count exceeds the second preset maximum allowable count, the nozzle cleaning operation will no longer be performed until the image forming apparatus recognizes a nozzle replacement event or the working state is in the initial state.

[0024] Secondly, embodiments of this application provide an image forming apparatus, comprising: A controller configured to perform the method described in any one of the first aspects.

[0025] Thirdly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in any one of the first aspects.

[0026] Fourthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the method described in any one of the first aspects.

[0027] In this embodiment, by controlling the image forming apparatus to perform a printhead cleaning operation that matches the imaging mode during the image forming process, based on the imaging mode that reflects the user's imaging performance requirements, the intensity of printhead cleaning can be indirectly controlled. This avoids too many or too few printhead cleaning cycles, thereby reducing ink waste and increasing imaging speed or improving imaging quality, thus enhancing the user experience. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram illustrating an application scenario provided in an embodiment of this application.

[0030] Figure 2 This is a schematic flowchart illustrating a control method for an image forming apparatus provided in an embodiment of this application.

[0031] Figure 3 This is a schematic diagram of an image forming apparatus provided in an embodiment of this application.

[0032] Figure 4 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0033] Figure 5 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0034] Figure 6 This is a schematic diagram of a printhead maintenance completion operation provided in an embodiment of this application.

[0035] Figure 7 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0036] Figure 8 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0037] Figure 9 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0038] Figure 10 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0039] Figure 11 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of this application. Detailed Implementation

[0040] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0042] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] See Figure 1 This is a schematic diagram illustrating an application scenario provided by an embodiment of this application. Figure 1 The figure shows a printhead 101, a drive unit 102, an imaging medium transport unit (not shown), and an imaging medium 103 (e.g., paper) of an inkjet image forming apparatus (hereinafter also referred to as an "image forming apparatus"). It is understood that an inkjet image forming apparatus is a device that completes image printing by controlling the printhead to perform ink ejection actions on an imaging medium, such as an inkjet printer, inkjet copier, inkjet fax machine, inkjet multifunction image making and copying apparatus, and any other similar apparatus.

[0045] Specifically, when the image forming apparatus performs an image forming operation, the imaging medium transport unit first controls the imaging medium 103 to move along the sub-scanning direction to the position corresponding to the printhead 101; then the drive unit 102 controls the printhead 101 to move along the main scanning direction, while generating a pressure difference. Under the action of the pressure difference generated by the drive unit 102, the ink in the printhead 101 at the corresponding position is sprayed onto the imaging medium 103 through the nozzle, thereby forming an image (referred to as the "imaging process").

[0046] It should be pointed out that, Figure 1 The image forming apparatus shown is merely an exemplary description and should not be construed as limiting the scope of protection of this application.

[0047] In practical applications, because the image forming page may contain areas that do not require imaging, or the resulting image may be a solid color or a single-color pattern, some printheads may not perform imaging inkjet operations for extended periods during the imaging process. This can lead to ink drying in the nozzles, causing them to become clogged. Furthermore, due to the "discontinuous" nature of the imaging process—the printhead moves back and forth within a single page—the nozzles, while not ejecting ink in non-imaging areas, are still exposed to air, which can also cause ink drying and nozzle clogging. Consequently, when imaging inkjet operations are needed again, the nozzles may not be able to eject ink promptly or the quality of the ejected ink may be compromised, affecting the overall quality of the image.

[0048] To address the aforementioned issues, relevant technologies typically perform an inkjet cleaning operation on all printheads after each printhead has completed a preset number of imaging operations along the main scanning direction during the imaging process. This means the same printhead cleaning operation is used regardless of user needs. However, different users may have different requirements for imaging performance. If user needs do not match the printhead cleaning operation, excessive printhead cleaning may result in ink waste and reduced imaging speed, while insufficient printhead cleaning may reduce image quality, leading to a poor user experience.

[0049] Therefore, this application provides a control method for an image forming apparatus. This method controls the image forming apparatus to perform a printhead cleaning operation that matches the imaging mode during the image forming process by using an imaging mode that reflects the user's imaging performance requirements. This indirectly controls the intensity of printhead cleaning, avoiding too many or too few printhead cleaning cycles, thereby reducing ink waste and increasing imaging speed or improving imaging quality, and ultimately enhancing the user experience.

[0050] Specifically, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0051] See Figure 2 This is a schematic flowchart illustrating a control method for an image forming apparatus provided in an embodiment of this application. This method can be applied to... Figure 1 In the image forming apparatus shown, such as Figure 2 As shown, it specifically includes steps S201 to S202.

[0052] Step S201: Receive image forming instructions.

[0053] It is understood that image forming instructions are used to direct the image forming apparatus to perform an image forming operation. The image forming instructions include the imaging mode for performing the image forming operation. The imaging mode is used to characterize imaging performance, such as imaging speed and imaging quality.

[0054] In this embodiment, the user can select different imaging modes through a terminal device (e.g., a smartphone, laptop, desktop computer, etc.) or an image forming apparatus, and then issue an image forming instruction including the imaging mode to the image forming apparatus. When the image forming apparatus receives the image forming instruction, it can perform a nozzle cleaning operation corresponding to the imaging mode in the image forming instruction during the image forming operation.

[0055] Understandably, image forming apparatuses typically include single-pass and multi-pass imaging modes. Single-pass imaging mode, also known as economy mode or 1-pass imaging mode, refers to an imaging mode where the printhead performs one ink ejection action on a region of the imaging medium during a single movement along the main scanning direction, thus completing the image printing of that region. Multi-pass imaging mode, also known as M-pass imaging mode, refers to an imaging mode where the printhead performs an ink ejection action on a region of the imaging medium each time during M movements along the main scanning direction, and the ink is superimposed to complete the image printing of that region.

[0056] Where M≥2, for example, 2-pass imaging mode, 3-pass imaging mode, and 4-pass imaging mode. For the image corresponding to region A in the image forming page, in 2-pass imaging mode, the printhead needs to be controlled to move back and forth once along the main scanning direction (moving a total of 2 times along the main scanning direction). Each time, an ink ejection action is performed in the region corresponding to the imaging medium. The image corresponding to region A can only be formed after 2 ink superpositions. In 3-pass imaging mode, the printhead needs to be controlled to move a total of 3 times along the main scanning direction. Each time, an ink ejection action is performed in the region corresponding to the imaging medium. The image corresponding to region A can only be formed after 3 ink superpositions. And so on. The embodiments of this application will not be described in detail.

[0057] In this embodiment, because the printhead can complete the printing of an image of a region in a single movement along the main scanning direction in single-pass imaging mode, the imaging speed of single-pass imaging mode is higher than that of multi-pass imaging mode, which requires multiple ink jetting actions on the same region to stack ink to complete the printing of the image of that region. However, multi-pass imaging mode, through multiple stacked ink jetting actions on the same region of the imaging medium by the printhead, can compensate for the accuracy and ink output deviation of a single jetting and optimize the ink dot density. Therefore, the imaging quality of multi-pass imaging mode is higher than that of single-pass imaging mode.

[0058] Among them, multi-pass imaging modes include, but are not limited to, standard mode and optimal mode. The imaging speed of standard mode is higher than that of optimal mode, while the imaging quality of optimal mode is higher than that of standard mode.

[0059] In this application embodiment, different imaging modes correspond to different user needs. In Economy mode, users prioritize high imaging speed, while only requiring basic image quality for general use, without demanding excessively high-quality images. In Standard mode, users have no extreme requirements for either imaging speed or quality; their core expectation is to achieve a balanced and optimal level of image quality while maintaining imaging speed. In Optimal mode, users focus more on obtaining high-quality imaging results and do not have excessively high requirements for imaging speed.

[0060] It's understandable that the imaging speed, from fastest to slowest, is: Economy Mode > Standard Mode > Optimal Mode. Conversely, the image quality resolution, from highest to lowest, is: Optimal Mode > Standard Mode > Economy Mode. Therefore, the faster the imaging speed, the worse the image quality, and vice versa.

[0061] Step S202: During the image forming operation, a nozzle cleaning operation matching the imaging mode is performed.

[0062] As mentioned above, excessive printhead cleaning during imaging may waste ink and reduce imaging speed; insufficient printhead cleaning may reduce image quality. This could fail to meet the user's imaging performance requirements for each imaging mode, resulting in a poor user experience. Therefore, to ensure that the imaging performance requirements for each imaging mode are met during the imaging process, printhead cleaning operations matched to the imaging mode can be performed.

[0063] It is understood that printhead cleaning operations include, but are not limited to, flash spraying and doctor blade cleaning. Flash spraying is used to control the printhead to perform ink ejection in the flash spraying zone of the image forming apparatus. Doctor blade cleaning is used to control the doctor blade component to clean the printhead surface.

[0064] See Figure 3 This is a schematic diagram of an image forming apparatus provided in an embodiment of this application. Figure 3The image forming apparatus 300 shown includes a moistening zone 301, a working zone 302, a flash spray zone 303, and a front door (not shown). The moistening zone 301 moistens the printhead to maintain its hydration and controls the printhead cap device to seal it. The working zone 302 performs image forming operations by spraying ink onto the imaging medium as needed to form an image. The flash spray zone 303 provides space for flash spraying operations, allowing the image forming apparatus 300 to flush away dried ink residue from the printhead, preventing clogging. Additionally, the flash spray zone 303 receives waste ink ejected during flash spraying, preventing it from contaminating other components. The front door is an openable operating hatch on the front of the image forming apparatus 300 and is the most frequently used operating door in daily maintenance. Its core function is for quickly removing and installing consumables and removing jammed paper. Some models also allow for simple inspection and maintenance of internal core imaging components through the front door, making it a key structure for facilitating the daily operation of the image forming apparatus 300.

[0065] It's important to note that flash-jet printing and imaging inkjet printing are different. Flash-jet printing typically refers to the simultaneous, high-frequency, and high-volume ejection of ink from all nozzles or all nozzles of a specific color group, generating a strong liquid flushing force to wash away dried ink residue within the nozzles. It's important to understand that "high-volume ejection of ink" in flash-jet printing doesn't mean that the volume of a single ejected droplet is larger than during printing, but rather that ink is ejected synchronously and at a high frequency within a very short time; the "volume" is reflected in the cumulative effect. Imaging inkjet printing, on the other hand, typically involves each nozzle being independently and asynchronously controlled, determining whether to eject ink at a position precise to the micrometer level based on the pattern to be imaged in the current scanning area. Of course, some image forming devices can also determine the droplet size ejected during the imaging process.

[0066] In addition, the image forming apparatus is equipped with a doctor blade. The doctor blade can scrape the ink off the printhead to prevent the ink from drying on the printhead surface.

[0067] In practical applications, when performing image formation jobs on the same page, the printhead moves along the main scanning direction fewer times in Economy mode than in Standard or Optimal modes. Furthermore, in Economy mode, users are more concerned with sufficient imaging speed. Since printhead cleaning takes time, performing numerous printhead cleaning operations to maintain the printhead's condition during an image formation job will result in slower imaging speeds in Economy mode. Therefore, a situation may arise where optimal image quality is not achieved, while imaging speed is sacrificed.

[0068] In one possible implementation, the imaging modes include a first imaging mode and a second imaging mode. The imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

[0069] In this embodiment, if the imaging mode is the first imaging mode, the nozzle cleaning operation is not performed during the execution of a page image formation job. It is understood that the imaging speed of the first imaging mode is relatively high. Therefore, the nozzle cleaning operation can be omitted during the execution of a page image formation job to ensure that the page image formation job is completed as quickly as possible, thereby indirectly improving the imaging speed of the entire image formation task.

[0070] However, to ensure that the imaging quality in the first imaging mode meets basic usage requirements, a nozzle cleaning operation can be performed after completing one page of image formation and before executing the next page of image formation. In other words, the nozzle cleaning operation before executing the next page of image formation is retained, ensuring the nozzle remains clean and guaranteeing the imaging quality of the next page of image formation.

[0071] For example, the first imaging mode can be an economy mode. When the user expects to perform image forming jobs in economy mode, for each page image forming job, the nozzle cleaning operation during the execution of each page image forming job is canceled, and only the nozzle cleaning operation before the execution of each page image forming job is retained. On this basis, both the imaging quality and the imaging speed in economy mode can be guaranteed.

[0072] In practical applications, compared to the economy mode, the printhead moves more times along the main scanning direction when performing a page image formation job in the standard and optimal modes. Therefore, the likelihood of nozzle clogging is higher if the printhead is not used for imaging inkjet operations for an extended period. Furthermore, the image quality requirements in the standard and optimal modes are higher than those in the economy mode. In the standard or optimal modes, if printhead cleaning is not performed during a page image formation job, the ink in the nozzles of the printhead that has not been used for imaging inkjet operations for a long time will dry out, causing nozzle clogging and resulting in poor image quality in the standard or optimal modes.

[0073] In one possible implementation, if the imaging mode is the second imaging mode, a printhead cleaning operation is performed during the execution of a page-forming job. It is understood that the imaging quality of the second imaging mode is relatively high. Therefore, performing a printhead cleaning operation during the execution of a page-forming job reduces the risk of nozzle clogging caused by some printheads not performing imaging inkjet operations for an extended period during the page-forming job, ensuring the imaging quality of that page-forming job and indirectly improving the overall imaging quality of the current image forming task to meet user needs.

[0074] For example, the second imaging mode can be a multi-pass imaging mode. When the user expects to perform an image forming job using any of the multi-pass imaging modes, the nozzle cleaning operation during the execution of each page image forming job is retained. Based on this, the nozzle is kept in good condition throughout the execution of each page image forming job, thereby ensuring the imaging quality of each page image forming job and indirectly improving the imaging quality of the entire current image forming task, thus meeting the user's needs.

[0075] In practical applications, during the execution of a single-page image formation job in multi-pass imaging mode, the nozzle of the image forming device needs to move back and forth multiple times along the main scanning direction. To improve the imaging quality of the single-page image formation job, in one possible implementation, when the number of times the nozzle moves along the main scanning direction equals a preset threshold number of moves during the execution of the single-page image formation job, a first flash spray operation is performed.

[0076] It is understandable that when the number of times the printhead moves along the main scanning direction equals a preset threshold, it can be considered that the critical time has been reached where drying will occur due to the printhead not performing imaging inkjet operations. At this point, if a printhead cleaning operation is not performed, it may affect the image quality of subsequent images. Therefore, during the process of forming a single page of images, the first flash spray operation can be performed when the number of times the printhead moves along the main scanning direction equals the preset threshold.

[0077] Specifically, during the process of forming a single page of images, after each first flash spray operation, the number of printhead movements along the main scanning direction can be re-accumulated. When the re-accumulated number of printhead movements along the main scanning direction reaches a preset movement threshold again, the first flash spray operation is performed again. This process is repeated until the entire page of images is formed. In other words, multiple first flash spray operations may be performed during the process of forming a single page of images.

[0078] It should be noted that the preset number of moves threshold is a preset value, such as 8 times, 10 times, etc. Of course, those skilled in the art can set other preset number of moves thresholds according to actual needs, and the embodiments of this application do not impose specific limitations on this.

[0079] In this embodiment, the first flash spray operation is used to control the printhead to perform a first preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus. In other words, the first flash spray operation refers to the first preset number of times that all nozzles or all nozzles of a certain color group simultaneously, at high frequency, and in large quantities eject ink.

[0080] For example, the first preset number of times is 6 times, and the first flash spray operation means controlling all nozzles or all nozzles of a certain color group to spray ink 6 times synchronously, at high frequency and in large quantity.

[0081] Of course, the first preset number of times is a preset value, and those skilled in the art can set other first preset number of times according to actual needs. This application embodiment does not impose specific limitations on this. For example, 1 time, 3 times, 6 times, etc.

[0082] In this embodiment of the application, during the process of forming a page image, when the number of times the printhead moves along the main scanning direction reaches a preset number of moves threshold, the first flash spray operation is performed. This ensures that when the cumulative number of printhead moves along the main scanning direction, the part or all of the printheads that have not undergone imaging inkjet operation will remain in good condition for the next use and will not affect the quality of the ink droplets.

[0083] In practical applications, image forming apparatuses may need to perform multiple page image forming jobs consecutively. However, after completing the current page image forming job, some preparation work may be required before starting the next page image forming job. During this period, the printhead may dry out due to the lack of ink ejection, thus affecting the image quality of the next page image forming job.

[0084] Therefore, in one possible implementation, if the imaging mode is the first imaging mode, a nozzle cleaning operation of the first cleaning intensity is performed after completing one page of image formation and before performing the next page of image formation; if the imaging mode is the second imaging mode, a nozzle cleaning operation of the second cleaning intensity is performed after completing one page of image formation and before performing the next page of image formation.

[0085] In this embodiment, the second cleaning intensity is higher than the first cleaning intensity. For example, the printhead cleaning operation at the first cleaning intensity can be a single first flash spray operation, while the printhead cleaning operation at the second cleaning intensity can be multiple first flash spray operations; alternatively, the printhead cleaning operation at the first cleaning intensity can be a single first flash spray operation, and the printhead cleaning operation at the second cleaning intensity can be a single ink scraping operation and a single first flash spray operation. Of course, those skilled in the art can also set other printhead cleaning operations at the first and second cleaning intensities. This embodiment does not impose specific limitations.

[0086] Understandably, for continuous multi-page image formation jobs, to ensure the imaging quality of each page, a nozzle cleaning operation can be performed before the page formation job is executed. However, the imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

[0087] In other words, in the first imaging mode, users prioritize imaging speed. Therefore, after completing one page of image formation and before starting the next page, a relatively low-intensity printhead cleaning operation can be performed. This ensures both imaging quality and speed in the first imaging mode, thus meeting user needs. In the second imaging mode, users prioritize image quality. Therefore, after completing one page of image formation and before starting the next page, a relatively high-intensity printhead cleaning operation can be performed. This allows for more thorough flushing of dried ink residue from the nozzles, ensuring image quality in the second imaging mode and meeting user needs.

[0088] In practical applications, different types of imaging media typically have different physical properties. For example, ordinary paper has a rough surface, large and uneven pores, many gaps between fibers, and no coating, which easily leads to problems such as pixel blurring, edge smudging, and graying colors due to ink dilution. Inkjet paper has a denser, multi-layered coating, which allows ink droplets to be quickly absorbed and locked in, preventing them from penetrating into the fibers and achieving precise droplet positioning. Photo paper has no fiber gaps, which can virtually eliminate ink penetration and smudging, and the ink droplet positioning is accurate to the pixel level. Relatively speaking, the image quality of photo paper is higher than that of inkjet paper; the image quality of inkjet paper is higher than that of ordinary paper.

[0089] Therefore, if a user uses an imaging medium corresponding to inkjet paper, it means that the user has relatively high requirements for image quality; if a user uses an imaging medium corresponding to ordinary paper, it means that the user has relatively low requirements for image quality.

[0090] Based on the imaging mode and imaging medium type, there are often more diverse user needs. Therefore, in one possible implementation, the second imaging mode includes the first imaging sub-mode. If the imaging mode is the first imaging sub-mode, then when the imaging medium type is a non-standard type, a printhead cleaning operation of the second cleaning intensity is performed after completing one page image formation job and before executing the next page image formation job. Non-standard types include, but are not limited to, inkjet paper type, photo paper type, etc.

[0091] For example, the first imaging sub-mode is the standard mode, and the non-standard type is inkjet paper. While in the standard mode, users don't have extreme requirements for imaging speed and quality, their core expectation is to achieve a balanced and relatively good level of image quality while ensuring imaging speed. However, since users use non-standard imaging media, it can be assumed that they place greater emphasis on image quality. Therefore, after completing one page of image formation and before starting the next page, a relatively high-intensity printhead cleaning operation can be performed to more thoroughly flush out dried ink residue from the nozzles, ensuring the imaging quality in both the first imaging sub-mode and the non-standard type, thereby meeting user needs.

[0092] As mentioned above, compared to the imaging medium corresponding to inkjet paper type, if the user uses the imaging medium corresponding to ordinary paper type, it means that the user's requirements for image quality are relatively low. Therefore, in one possible implementation, if the imaging mode is the first imaging sub-mode, then when the imaging medium type is ordinary type, after completing one page image formation job and before executing the next page image formation job, a printhead cleaning operation of the first cleaning intensity is performed. Ordinary type includes, but is not limited to, ordinary paper type.

[0093] For example, the first imaging sub-mode is the standard mode, and the ordinary type is ordinary paper type. While in the standard mode, the user has no extreme requirements for imaging speed and quality, and the core expectation is to achieve a balanced and relatively good level of imaging quality while ensuring imaging speed, the user uses an ordinary type of imaging medium, suggesting that the user's requirements for imaging quality are relatively low. Therefore, after completing one page of image formation and before executing the next page of image formation, a relatively low-intensity nozzle cleaning operation can be performed. This ensures both the imaging quality and imaging speed in both the first imaging mode and the ordinary type, thus meeting the user's needs.

[0094] It should be noted that regardless of whether a non-standard or standard imaging medium is used, since the image forming operation is performed using the first imaging sub-mode within the second imaging mode, the first flash spray operation can be performed based on the number of times the nozzle moves along the main scanning direction during the execution of one page of image forming operation. This ensures that the nozzle remains in good condition throughout the execution of each page of image forming operation, thereby guaranteeing the imaging quality of each page of image forming operation and indirectly improving the imaging quality of the entire current image forming task to meet user needs.

[0095] In one possible implementation, the second imaging mode further includes a second imaging sub-mode. If the imaging mode is the second imaging sub-mode, then a nozzle cleaning operation of the second cleaning intensity is performed after one page of image formation is completed and before the next page of image formation is performed.

[0096] The second imaging sub-mode has a lower imaging speed than the first imaging sub-mode, and its imaging quality is higher than that of the first imaging sub-mode. For example, the first imaging sub-mode can be a standard mode, and the second imaging sub-mode can be an optimal mode.

[0097] Understandably, when using the second imaging sub-mode, it can be assumed that the user has higher requirements for image quality. In this case, regardless of whether a non-standard or standard imaging medium is used, a high-quality image output is necessary. Therefore, after completing one page of image formation and before starting the next page, a relatively high-intensity printhead cleaning operation can be performed to more thoroughly flush away dried ink residue within the nozzles, ensuring image quality in the second imaging sub-mode and thus meeting user needs.

[0098] It should be noted that in the first imaging mode, users prioritize imaging speed. At this time, regardless of whether a non-standard or standard imaging medium is used, imaging speed remains a concern. Therefore, after completing one page of image formation and before starting the next page, a relatively low-intensity nozzle cleaning operation can be performed. This ensures both imaging quality and speed in the first imaging mode, thus meeting user needs.

[0099] To facilitate understanding, the control method of the image forming apparatus provided in the above embodiments will be described below with reference to a specific implementation method.

[0100] See Figure 4 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application. Figure 4As shown, after receiving an image forming command, the image forming apparatus can first perform 30 flash spray operations while preheating the printhead to prepare it. If the user uses the economy mode, the printhead will move back and forth along the main scanning direction to perform the imaging operation without performing any printhead cleaning operations until the current page image forming job is completed. After the current page image forming job is completed, if the next page image forming job needs to be performed, another 30 flash spray operations are performed while preheating the printhead to prepare it for the next page image forming job. If no imaging data for the next image forming job is received, the current image forming task is terminated, and the printhead sealing operation is triggered.

[0101] like Figure 4 As shown, if the user uses standard mode and ordinary imaging media, the printhead cleaning operations before and after the current page image formation job are the same as in economy mode. However, in standard mode, during the current page image formation job, the printhead will perform 6 flash spray operations every 8 back-and-forth movements along the main scanning direction until the current page image formation job is completed.

[0102] like Figure 4 As shown, if the user uses standard mode and a non-standard type of imaging medium, 30 flash spray operations and 1 scraping operation will be performed sequentially after the current page image formation job is completed. All other procedures are the same as those using standard mode and standard type imaging media. Furthermore, the procedure for the user using the optimal mode is exactly the same as that using standard mode and non-standard type imaging media. For simplicity, these will not be elaborated upon here. Additionally, the specific details of the "ink carriage sealing operation" are described below.

[0103] See Figure 5 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application. Figure 5 As shown, the embodiments of this application are in Figure 2 Based on the illustrated embodiment, step S501 is further included after step S201.

[0104] Step S501: In response to the image forming command, perform the nozzle cap device seal release operation.

[0105] Understandably, before performing an image forming operation, the image forming apparatus usually needs to perform a printhead maintenance operation. The printhead maintenance operation refers to opening the printhead cap device, and the printhead carrying the printhead and ink cartridge to the flash spray area to perform a second preset number of ink ejection operations, and then continuing to move to the working area to perform the imaging operation.

[0106] The printhead cap device is used to seal the nozzles of the printhead to prevent clogging. It covers the printhead to keep it moist when in standby or when the printhead is not in operation. In other words, the printhead cap release operation allows the printhead to move and perform a second, preset number of ink ejection operations in the flash area of ​​the image forming apparatus.

[0107] In this embodiment of the application, when an image forming instruction is received, the image forming apparatus first performs an ink carriage maintenance end operation, that is, removes the seal of the printhead cap device and moves to the flash spray area to perform a second preset number of ink ejection operations, so that the printhead can work normally, thereby reducing the risk of image forming operation failure due to the printhead not working properly.

[0108] For example, the second preset number of times is 400 times. The printhead cap device seal release operation means controlling all nozzles or all nozzles of a certain color group to synchronously, frequently, and in large quantities eject ink 400 times.

[0109] The second preset number of times is a preset value, which can be set by those skilled in the art according to actual needs. This application embodiment does not impose specific limitations on this. For example, 200 times, 300 times, 400 times, etc.

[0110] In one possible implementation, to ensure the cleaning effect of the flash spraying operation, the printhead will be preheated before the flash spraying operation is performed after the inkjet cap device seal is removed.

[0111] In one possible implementation, to verify the authenticity of printhead clogging, after the inkjet cap device seal is removed, not only a flash spray operation but also a scraping operation is performed. The flash spray operation quickly checks the nozzle status; if nozzle clogging is detected, the scraping operation continues to unclog the nozzle and clean the printhead.

[0112] In one possible implementation, to ensure cleaning effectiveness, after the inkjet cap device seal is released, a scraping operation is performed first, followed by a flash spray operation. The scraping operation physically removes large particles and residual ink, reducing obstacles for the flash spray operation. This allows the flash spray operation to more easily flush out small particles and unclog the nozzles, while also reducing the number of printhead movements and waiting time.

[0113] In one possible implementation, to ensure cleaning effectiveness, at least one scraping operation, a preheating operation, and a flash spraying operation are performed after the inkjet cap device seal is removed.

[0114] See Figure 6 This is a schematic diagram illustrating the process of ending ink carriage maintenance, as provided in an embodiment of this application. Figure 6As shown, upon receiving the image forming instruction (i.e., step S201), a second preset number of ink ejection operations are performed in the flash inkjet area (i.e., step S601), and then the image forming operation is awaited (i.e., step S602). Specific details related to the embodiments of this application can be found in the description of the above method embodiments; for the sake of brevity, they will not be repeated here.

[0115] However, after completing the ink carriage maintenance, there is usually a waiting period before the image forming operation is performed, during which the corresponding imaging data for the image forming operation is received. During this waiting period, because the printhead cap seal is released, the printhead is exposed to air but has not yet undergone the imaging inkjet operation, which may still lead to ink drying and affect image quality. Therefore, in one possible implementation, after the printhead cap seal release operation, a second flash-jet operation is performed within the first waiting period.

[0116] The first waiting time is the time it takes to receive the imaging data corresponding to the image formation operation after the nozzle cap device seal release operation is completed. The first waiting time is a preset value, and those skilled in the art can set it according to actual needs; this application embodiment does not impose specific limitations on it. For example, 20s, 30s, 40s, etc.

[0117] Understandably, after the printhead cap device seal is released, allowing the printhead to move within the flash spray area of ​​the image forming apparatus to perform a second preset number of ink ejection operations, and before receiving the imaging data corresponding to the image forming operation, a second flash spray operation is performed. This reduces the risk of ink drying that may occur during the waiting period when the printhead cap device seal is released, exposing the printhead to air before the imaging ink ejection operation has begun, thus ensuring image quality.

[0118] In this embodiment, the second flash-jet operation is used to control the printhead to perform a third preset number of ink ejection operations in the flash-jet zone of the image forming apparatus. While performing the second flash-jet operation, the printhead can be preheated; at this point, the printhead can be considered to have completed all preparation work and is ready to begin image forming operations.

[0119] For example, the third preset number of times is 30 times, and the second flash spray operation means controlling all nozzles or all nozzles of a certain color group to spray ink synchronously, at high frequency and in large quantity 30 times.

[0120] It should be noted that the third preset number of times is a preset value, and those skilled in the art can set the third preset number of times according to actual needs. This application embodiment does not impose specific limitations on this. For example, 20 times, 30 times, 40 times, etc.

[0121] In practical applications, after completing all image forming operations, it is usually necessary to seal the printhead to keep it moist during standby or when the printhead is not in operation, ensuring that the printhead remains in good condition for the next use. In one possible implementation, if no imaging data corresponding to the next page of image forming operations is received within a second waiting period after completing the image forming operation, the printhead capping device is used for sealing.

[0122] It is understandable that image forming apparatuses typically receive imaging data corresponding to an image forming operation in pages. That is, the image forming apparatus will only receive imaging data corresponding to the next page of image forming operation after it has completed the image forming operation for one page.

[0123] In this embodiment, after completing the image formation task for the current page, a timer is started. If the imaging data corresponding to the image formation task for the next page is not received after the timer reaches the second waiting time, the current image formation task can be considered complete. At this time, a nozzle cap device sealing operation can be performed to seal and store the nozzle in a moisturized state, ensuring that the nozzle remains in good condition for the next use.

[0124] It should be noted that the second waiting time is a preset value, and those skilled in the art can set the second waiting time according to actual needs. This application embodiment does not impose specific limitations on this. For example, 5s, 6s, 7s, etc.

[0125] The nozzle cap device sealing operation is used to control the nozzle to complete the sealing in the moisturizing area of ​​the image forming apparatus after performing the nozzle cleaning operation corresponding to the nozzle cap device sealing operation.

[0126] In one possible implementation, the printhead cleaning operation, corresponding to the printhead cap sealing operation, is used to sequentially perform a fourth preset number of scraping operations and a third flash spray operation on the printhead. The scraping operation controls the scraping component to clean the printhead surface. The third flash spray operation controls the printhead to perform a fifth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

[0127] Understandably, the first step is to scrape away the dried ink on the printhead surface through the fourth preset number of scraping operations, making the printhead more thoroughly cleaned; then, the third flash spray operation sprays out any mixed ink that may have been caused by scraping, leaving almost no dried ink residue inside the printhead, thus allowing the printhead to be sealed and stored in good condition.

[0128] For example, the fourth preset number of times is 2 times, and the third preset number of times is 20 times. Executing the fourth preset number of ink scraping operations and the third flash spray operation in sequence means that the ink scraping operation is performed twice to scrape off the dried ink on the printhead surface, and then all nozzles or all nozzles of a certain color group are controlled to synchronously, frequently, and in large quantities spray ink 20 times to spray out the mixed ink that may be caused by the ink scraping.

[0129] It should be noted that the fourth and fifth preset counts are both preset values. Those skilled in the art can set the fourth and fifth preset counts according to actual needs, and the embodiments of this application do not impose specific limitations on them. For example, the fourth preset count can be 2 times, 3 times, 4 times, etc.; the fifth preset count can be 20 times, 30 times, 40 times, etc.

[0130] In this embodiment, after the printhead cap device sealing operation is completed, the printhead carriage is controlled to seal the ink cartridge in the moisturizing area, thereby completing the printhead carriage sealing operation and ending the current printhead carriage maintenance operation.

[0131] See Figure 7 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application. Figure 7 As shown in (1), after the current image forming operation is completed (i.e., step S701), if no imaging data is received within the second waiting time (i.e., step S702), then the printhead is subjected to a fourth preset number of ink scraping operations (i.e., step S703) and a third flash spray operation (i.e., step S704) in sequence to complete the printhead cap device sealing operation (i.e., step S705). Specific details related to the embodiments of this application can be found in the description of the above method embodiments; for the sake of brevity, they will not be repeated here.

[0132] In one possible implementation, the printhead cleaning operation corresponding to the printhead cap sealing operation is used to sequentially perform a fourth flash spray operation, a fourth preset number of scraping operations, and a third flash spray operation on the printhead.

[0133] Understandably, a large amount of dried ink may exceed the scraping capacity of the doctor blades, potentially causing damage during the scraping operation. Therefore, a fourth flash spray operation can be used to rinse away some of the dried ink on the printhead surface, reducing the risk of damage to the doctor blades. Furthermore, a fourth preset number of scraping operations can clean the remaining dried ink on the printhead surface, followed by a third flash spray operation to expel any mixed ink that may have been present during scraping. This ensures that almost no dried ink remains inside the printhead, allowing it to be sealed and stored in good condition.

[0134] The fourth flash spray operation controls the printhead to perform a sixth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus. For example, the sixth preset number is 200 times. The fourth flash spray operation means controlling all nozzles or all nozzles of a certain color group to synchronously, frequently, and in large quantities eject ink 200 times to remove any ink mixing that might result from scraping.

[0135] It should be noted that the sixth preset number of times is a preset value, and those skilled in the art can set the sixth preset number of times according to actual needs. This application embodiment does not impose specific limitations on this. For example, 200 times, 300 times, 400 times, etc.

[0136] like Figure 7 As shown in (2), after the current image forming operation is completed (i.e. step S701), if no imaging data is received within the second waiting time (i.e. step S702), the printhead will sequentially perform the fourth flash spray operation (i.e. step S706), the fourth preset number of ink scraping operations (i.e. step S703), and the third flash spray operation (i.e. step S704) to complete the printhead cap device sealing operation (i.e. step S705).

[0137] In practical applications, image forming apparatuses typically operate in various scenarios, each requiring different printhead cleaning procedures. In some scenarios, errors may occur during the image forming process. These include situations such as paper shortage, paper jams, front door opening, paper feed failure, printhead overheating, printhead underheating, or abnormal power failure. Taking a paper shortage scenario as an example, insufficient paper may cause a paper shortage during the image forming process. If the user does not add paper promptly, the ink produced during imaging will be absorbed onto the printhead surface. If printing is not resumed for an extended period without refilling paper, the ink may solidify or damage the meniscus of the printhead surface, affecting image quality.

[0138] See Figure 8 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application. Figure 8 As shown, the embodiments of this application are in Figure 2 Based on the illustrated embodiment, step S801 is also included.

[0139] Step S801: During the image forming operation, when the image forming device is in an error state, a nozzle cleaning operation corresponding to the error duration is performed.

[0140] In this embodiment, the image forming apparatus is equipped with a status monitoring component, which can monitor the operating status of the image forming apparatus and determine whether the image forming apparatus has encountered abnormal problems such as paper shortage, paper jam, front door opening, paper feeding failure, printhead overheating, printhead underheating, or abnormal power failure. When an abnormal problem occurs, the image forming apparatus can set its operating status to an error state and output error information, allowing the user to promptly understand the operating status of the image forming apparatus and perform maintenance.

[0141] Furthermore, when the image forming apparatus sets its operating state to an error-reporting state, the error duration can be monitored, and the cleaning intensity of the nozzle cleaning operation can be determined based on the error duration. It can be understood that the error duration characterizes the duration during which the operating state is in an error-reporting state.

[0142] In this embodiment, the cleaning intensity of the printhead cleaning operation corresponding to the error duration is positively correlated with the error duration. It is understood that when the image forming apparatus is in an error state, the printhead typically cannot perform imaging inkjet operations. The longer the error duration, the longer the printhead is exposed to air, and the easier it is for ink to solidify on the printhead surface, potentially resulting in a larger accumulation of solidified ink. Therefore, a printhead cleaning operation with higher cleaning intensity is required.

[0143] To determine the printhead cleaning operation corresponding to the error duration, a mapping between error duration and printhead cleaning operation can be pre-stored in the relevant storage components of the image forming apparatus. When the image forming apparatus returns to a normal operating state, it means the problem has been resolved. At this point, based on the error duration, the corresponding printhead cleaning operation can be determined from the mapping, and after performing the printhead cleaning operation corresponding to the error duration, the image forming operation can continue.

[0144] For example, 0 < error duration A < a and a < error duration B < b; the correspondence between error duration and nozzle cleaning operation is shown in Table 1. It can be understood that when the error duration is A, since 0 < error duration A < a, the nozzle cleaning operation corresponding to error duration A is determined to be a nozzle cleaning operation of the first cleaning intensity; similarly, when the error duration is B, since a < error duration B < b, the nozzle cleaning operation corresponding to error duration B is determined to be a nozzle cleaning operation of the second cleaning intensity; and so on. This embodiment of the application will not elaborate further on this.

[0145] Table 1: It should be noted that the printhead cleaning operations at the first, second, and third cleaning intensities can all include a scraping operation and / or a flash spraying operation. The number of times the scraping and / or flash spraying operations are performed in the first, second, and third cleaning intensities is not specifically limited in this embodiment. However, it is necessary that the first cleaning intensity is lower than the second cleaning intensity, and the second cleaning intensity is lower than the third cleaning intensity.

[0146] In this embodiment of the application, when an error occurs during the image forming operation, the cleaning intensity of the printhead is determined based on the error duration, which can basically remove the solidified ink that caused the nozzle to become clogged during the error duration, thereby ensuring the imaging quality.

[0147] In other application scenarios, the image forming apparatus may not be performing image forming operations. These include scenarios such as power-on startup, waking from sleep mode, replacing ink cartridges, opening the printhead cover, reinstalling ink cartridges, and restarting after an abnormal power outage. In these cases, it is necessary to set an automatic cleaning program for the image forming apparatus to address printhead drying and clogging that may occur when the printhead is not in use for extended periods.

[0148] See Figure 9 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application. Figure 9 As shown, the embodiments of this application are in Figure 2 Based on the illustrated embodiment, steps S901-S902 are also included.

[0149] Step S901: When the image forming apparatus is in a non-image forming operation state, determine the trigger time of the nozzle cleaning operation corresponding to the preset cleaning frequency.

[0150] In this embodiment, the cleaning frequency can be set by the user, or it can be automatically adjusted by the image forming apparatus according to the user's usage habits. When the status monitoring component detects that the image forming apparatus is in a state where no image forming operation is being performed, it determines the trigger time for the nozzle cleaning operation based on the cleaning frequency. Furthermore, at each trigger time interval, a nozzle cleaning operation corresponding to the cleaning frequency is performed.

[0151] The cleaning frequency includes, but is not limited to, high, medium, and low frequencies. The cleaning frequency is negatively correlated with the trigger time. In other words, a higher cleaning frequency means a shorter time to execute the cleaning operation each time it is triggered.

[0152] To determine the trigger time for the nozzle cleaning operation, the correspondence between cleaning frequency and nozzle cleaning operation trigger time can be pre-stored in the relevant storage components of the image forming apparatus. When the image forming apparatus is in a non-image forming state, the trigger time for the nozzle cleaning operation corresponding to the cleaning frequency can be determined based on the correspondence between cleaning frequency and nozzle cleaning operation trigger time, and then the nozzle cleaning operation can be performed based on the trigger time.

[0153] For example, the correspondence between cleaning frequency and the trigger time of nozzle cleaning operation is shown in Table 2. It can be understood that when the cleaning frequency is high, the trigger time for nozzle cleaning operation is determined to be 1 hour; similarly, when the cleaning frequency is medium, the trigger time for nozzle cleaning operation is determined to be 2 hours; and so on. This embodiment of the application will not elaborate further.

[0154] Table 2: It should be noted that those skilled in the art can set other correspondences between cleaning frequencies and the trigger time of nozzle cleaning operations according to other needs, and the embodiments of this application do not impose specific limitations on this.

[0155] Step S902: At each trigger interval, perform the nozzle cleaning operation corresponding to the cleaning frequency.

[0156] In this embodiment, the image forming apparatus includes a timer to control the frequency of nozzle cleaning operations. When a trigger time is determined, the timer starts counting, and when the countdown reaches the trigger time, a nozzle cleaning operation corresponding to the cleaning frequency is performed. Simultaneously, the timer resets to start counting again, and when the countdown reaches the trigger time again, a nozzle cleaning operation corresponding to the cleaning frequency is performed. This cycle repeats until the automatic cleaning program is stopped.

[0157] For different cleaning frequencies, the same number of printhead cleaning operations can be performed after each trigger time. However, for high frequencies, printhead cleaning is more frequent, and performing more printhead cleaning operations after each trigger time may result in ink waste; for low frequencies, printhead cleaning is less frequent, and performing fewer printhead cleaning operations after each trigger time may result in incomplete cleaning of the cured ink.

[0158] Therefore, in one possible implementation, the printhead cleaning operation corresponding to the cleaning frequency includes a flash spray operation, the number of which is negatively correlated with the cleaning frequency. The flash spray operation is used to control the printhead to eject ink once in the flash spray zone of the image forming apparatus.

[0159] Understandably, a higher cleaning frequency means more frequent printhead cleaning, resulting in fewer flash print operations per contact time. This reduces ink waste at high frequencies and improves printhead cleanliness at low frequencies. In other words, the cleaning intensity of printhead cleaning operations is negatively correlated with the cleaning frequency.

[0160] Of course, the printhead cleaning operation corresponding to the cleaning frequency may also include ink scraping, and this application embodiment does not specifically limit this. In addition, if the printhead is clogged, the ink has solidified, or there are other problems that prevent ink from being sprayed, the user can also manually perform multiple printhead cleaning operations.

[0161] In the embodiments of this application, when the image forming apparatus is in an idle state (i.e., not performing an image forming operation), cleaning the nozzles through appropriate periodic nozzle cleaning operations is beneficial to the high-quality output of the image.

[0162] For ease of understanding, the control method of the image forming apparatus provided in this application embodiment will be described in detail below with reference to a specific implementation. See also Figure 10 This is a schematic flowchart illustrating another control method for an image forming apparatus provided in an embodiment of this application.

[0163] like Figure 10 As shown, when the automatic cleaning program is started, if the cleaning frequency is high, a printhead cleaning operation is triggered every 1 hour to perform 2 scraping operations and 200 flash spray operations in sequence; if the cleaning frequency is medium, a printhead cleaning operation is triggered every 2 hours to perform 2 scraping operations and 300 flash spray operations in sequence; if the cleaning frequency is low, a printhead cleaning operation is triggered every 5 hours to perform 2 scraping operations and 500 flash spray operations in sequence. Specific details related to the embodiments of this application can be found in the description of the above method embodiments, and will not be repeated here for the sake of brevity.

[0164] In practical applications, excessive printhead cleaning can not only cause ink to overflow from the waste ink tank, making the printhead dirty, but also drastically shorten the printhead's lifespan, which may lead to a significant decline in image output quality.

[0165] Therefore, in one possible implementation, after starting the image forming apparatus and performing the first nozzle cleaning operation, a timer can be started; then, according to a preset timer period, the first number of times the nozzle cleaning operation is performed within the timer period can be accumulated; if the first number of cleanings within the timer period is greater than the preset alarm number, a prompt message is output; if the first number of cleanings within the timer period is greater than the first preset maximum allowable number, the nozzle cleaning operation is not performed before the timer is turned off.

[0166] It is understandable that starting the image forming apparatus means that the image forming apparatus is powered on and ready for operation. After the image forming apparatus is started, it may perform nozzle cleaning operations during or when no image forming operation is being performed.

[0167] In this embodiment, after the first nozzle cleaning operation is performed, the timer automatically starts and accumulates the number of nozzle cleaning operations performed within a preset time period, i.e., the first cleaning count. The preset time period is a pre-defined value, which can be set by those skilled in the art according to actual needs; this embodiment does not impose specific limitations on it. For example, 30 minutes, 60 minutes, etc.

[0168] After accumulating the first cleaning count within a timed period, it can be determined whether the first cleaning count within that timed period exceeds the preset alarm count. If the first cleaning count within that timed period exceeds the preset alarm count, it means that the printhead has been cleaned too frequently in a short period of time. In this case, a prompt message can be output to warn the user that the image forming device has performed printhead cleaning operations too many times.

[0169] The preset alarm count is a preset value, which can be set by those skilled in the art according to actual needs. This application embodiment does not impose specific limitations on this. For example, 50 times, 100 times, etc.

[0170] Additionally, a first preset maximum allowed number of cleaning operations can be set. It's understood that if the first cleaning operation within a timer period exceeds the first preset maximum allowed number, it means the critical value for printhead cleaning operations within the timer period has been reached. At this point, performing printhead cleaning might cause ink overflow from the waste ink tank, resulting in printhead contamination. Therefore, printhead cleaning operations are not performed before the timer is turned off (i.e., the image forming apparatus is not powered off), thereby reducing the risk of printhead contamination from frequent cleaning in a short period.

[0171] The first preset maximum allowed number of times is a preset value, which can be set by those skilled in the art according to actual needs. This application embodiment does not impose specific limitations on this. For example, 300 times, 500 times, etc.

[0172] In one possible implementation, the second number of times the image forming apparatus performs nozzle cleaning operation can be accumulated; if the second number of cleaning operations is greater than the second preset maximum allowable number of cleaning operations, the nozzle cleaning operation will no longer be performed until the image forming apparatus recognizes a nozzle replacement event or the working state is in the initial state.

[0173] It is understandable that the second cleaning count is not affected by the power-on or power-off state of the image forming apparatus. As long as the image forming apparatus performs one cleaning cycle, the second cleaning count will be incremented by one. In other words, the second cleaning count is used to record the number of times the image forming apparatus performs the printhead cleaning operation over a long period of time.

[0174] In this embodiment, if the second cleaning cycle exceeds the second preset maximum allowable cycle, it means that the critical value of the allowable cleaning cycle for the printhead has been reached. At this point, performing the printhead cleaning operation again may damage the printhead, thus affecting its normal use. Therefore, the printhead cleaning operation is not performed until a printhead replacement event is detected or the image forming apparatus returns to its initial operating state, thereby extending the printhead's service life.

[0175] The second preset maximum allowed number of times is a preset value, which can be set by those skilled in the art according to actual needs. This application embodiment does not impose specific limitations on this. For example, 1000 times, 2000 times, etc.

[0176] Furthermore, the initial state signifies that the image forming apparatus has performed a reset operation. The status monitoring unit within the image forming apparatus can identify whether a printhead has been replaced or the image forming apparatus has been reset. Specifically, the status monitoring unit can acquire the current identification information of the printhead in real time. Then, the current identification information can be compared with historical identification information; if the current identification information does not match the historical identification information, it can be considered that a printhead replacement event has occurred.

[0177] Similarly, the status monitoring component can acquire the current configuration information of the image forming apparatus in real time. Then, the current configuration information can be compared with the initial configuration information. If the current configuration information is consistent with the initial configuration information, it can be assumed that the image forming apparatus has performed a reset operation.

[0178] In this embodiment, different printhead maintenance strategies are determined by accumulating the number of printhead cleaning operations performed by the image forming apparatus. This reduces the problem of ink overflow caused by excessive cleaning leading to ink saturation of the bottom foam and printhead contamination, and extends the lifespan of the printhead.

[0179] In this embodiment of the application, by using an imaging mode that reflects the user's imaging performance requirements, the image forming apparatus can perform a printhead cleaning operation that matches the imaging mode during the image forming process. This can indirectly control the intensity of printhead cleaning, and to a certain extent avoid too many or too few printhead cleanings, thereby reducing ink waste and increasing imaging speed or improving imaging quality, thus enhancing the user experience.

[0180] For details regarding the specific content involved in the embodiments of this application, please refer to the description of the above method embodiments. For the sake of brevity, these details will not be repeated here.

[0181] Corresponding to the above embodiments, this application also provides an image forming apparatus.

[0182] See Figure 11 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of this application. Figure 11 As shown, the image forming apparatus 1100 includes a controller 1101, which is configured to perform some or all of the steps in the above method embodiments.

[0183] For details regarding the specific content involved in the embodiments of this application, please refer to the description of the above method embodiments. For the sake of brevity, these details will not be repeated here.

[0184] Corresponding to the above embodiments, this application also provides a computer-readable storage medium, wherein the computer-readable storage medium may store a program, wherein when the program runs, it can control the device where the computer-readable storage medium is located to execute some or all of the steps in the above method embodiments. In specific implementation, the computer-readable storage medium may be a magnetic disk, an optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0185] Corresponding to the above embodiments, this application also provides a computer program product containing executable instructions that, when executed on a computer, cause the computer to perform some or all of the steps in the above method embodiments.

[0186] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, or the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects have an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0187] Those skilled in the art will recognize that the units and algorithm steps described in the embodiments disclosed herein can be implemented using electronic hardware, computer software, or a combination of electronic hardware and software. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0188] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0189] In the several embodiments provided in this application, any function, if implemented as a software functional unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0190] The above description is merely a specific embodiment of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. The protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A control method for an image forming apparatus, characterized in that, include: Receive an image forming instruction, the image forming instruction including an imaging mode for performing an image forming operation, the imaging mode being used to characterize imaging performance; During the image forming operation, a nozzle cleaning operation matching the imaging mode is performed.

2. The method according to claim 1, characterized in that, The imaging mode includes a first imaging mode and a second imaging mode. The step of performing a nozzle cleaning operation matching the imaging mode includes: If the imaging mode is the first imaging mode, then the nozzle cleaning operation is not performed during the process of forming a page of images; If the imaging mode is the second imaging mode, then a nozzle cleaning operation is performed during the process of forming a single image page. The imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

3. The method according to claim 2, characterized in that, The process of performing a printhead cleaning operation during the creation of a single-page image includes: During the execution of a page image forming job, when the number of times the printhead of the image forming apparatus moves along the main scanning direction is equal to a preset number of moves threshold, a first flash spray operation is executed. The first flash spray operation is used to control the printhead to perform a first preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

4. The method according to claim 1, characterized in that, The imaging mode includes a first imaging mode and a second imaging mode. The step of performing a nozzle cleaning operation matching the imaging mode includes: If the imaging mode is the first imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation with the first cleaning intensity is performed. If the imaging mode is the second imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation with a second cleaning intensity is performed, where the second cleaning intensity is higher than the first cleaning intensity. The imaging speed of the first imaging mode is higher than that of the second imaging mode, and the imaging quality of the first imaging mode is lower than that of the second imaging mode.

5. The method according to claim 4, characterized in that, The second imaging mode includes a first imaging sub-mode. If the imaging mode is the second imaging mode, then after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation of the second cleaning intensity is performed, including: If the imaging mode is the first imaging sub-mode, then when the imaging medium type is a non-ordinary type, after completing one page of image formation and before executing the next page of image formation, a nozzle cleaning operation of the second cleaning intensity is performed.

6. The method according to claim 5, characterized in that, The method further includes: If the imaging mode is the first imaging sub-mode, then when the imaging medium type is a normal type, after completing one page of image formation and before executing the next page of image formation, the nozzle cleaning operation of the first cleaning intensity is performed.

7. The method according to claim 5, characterized in that, The second imaging mode further includes a second imaging sub-mode, and the method further includes: If the imaging mode is the second imaging sub-mode, then after completing one page of image formation and before executing the next page of image formation, the nozzle cleaning operation of the second cleaning intensity is performed; The imaging speed of the second imaging sub-mode is lower than that of the first imaging sub-mode, and the imaging quality of the second imaging sub-mode is higher than that of the first imaging sub-mode.

8. The method according to claim 1, characterized in that, Following the receipt of the image forming instruction, the method further includes: In response to the image forming command, a printhead cap device seal release operation is performed, which enables the printhead to move and perform a second preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

9. The method according to claim 8, characterized in that, After the nozzle cap device seal release operation is performed, the following is also included: During the first waiting time, a second flash spray operation is performed. The first waiting time is the time after the printhead cap device seal release operation is completed and the imaging data corresponding to the image forming operation is received. The second flash spray operation is used to control the printhead to perform a third preset number of ink ejection operations in the flash spray area of ​​the image forming device.

10. The method according to claim 1, characterized in that, The method further includes: After the image forming operation is completed, if the imaging data corresponding to the next page image forming operation is not received within the second waiting time, the nozzle cap device sealing operation is performed. The nozzle cap device sealing operation is used to control the nozzle to complete the sealing in the moisturizing area of ​​the image forming device after performing the nozzle cleaning operation corresponding to the nozzle cap device sealing operation.

11. The method according to claim 10, characterized in that, The printhead cleaning operation corresponding to the printhead cap device sealing operation is used to sequentially perform a fourth preset number of ink scraping operations and a third flash spray operation on the printhead; The scraping operation is used to control the scraping component to clean the surface of the printhead, and the third flash spray operation is used to control the printhead to perform a fifth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus.

12. The method according to claim 10, characterized in that, The printhead cleaning operation corresponding to the printhead cap device sealing operation is used to sequentially perform the fourth flash spray operation, the fourth preset number of ink scraping operations, and the third flash spray operation on the printhead; The fourth flash spray operation is used to control the printhead to perform a sixth preset number of ink ejection operations in the flash spray area of ​​the image forming apparatus; the scraper operation is used to control the scraper component to clean the printhead surface; and the third flash spray operation is used to control the printhead to perform a fifth preset number of ink ejection operations in the flash spray area.

13. The method according to claim 1, characterized in that, During the execution of the image forming operation, the method further includes: When the image forming apparatus is in an error state, a nozzle cleaning operation corresponding to the error duration is performed. The error duration is used to characterize the duration of the error state. The cleaning intensity of the nozzle cleaning operation corresponding to the error duration is positively correlated with the error duration.

14. The method according to claim 1, characterized in that, The method further includes: When the image forming apparatus is in a non-image forming state, the trigger time for the nozzle cleaning operation corresponding to the preset cleaning frequency is determined. At each of the aforementioned trigger intervals, a nozzle cleaning operation corresponding to the aforementioned cleaning frequency is performed.

15. The method according to claim 14, characterized in that, The printhead cleaning operation corresponding to the cleaning frequency includes a flash spray operation. The number of flash spray operations is negatively correlated with the cleaning frequency. The flash spray operation is used to control the printhead to spray ink once in the flash spray area of ​​the image forming apparatus.

16. The method according to claim 1, characterized in that, The method further includes: After starting the image forming apparatus and performing the first nozzle cleaning operation, start the timer; According to a preset time period, the first number of times the nozzle cleaning operation is performed within the time period is accumulated; If the first cleaning count within the time period exceeds the preset alarm count, a prompt message will be output; If the first number of cleaning cycles within the timer period is greater than the first preset maximum allowable number of cleaning cycles, then the nozzle cleaning operation will not be performed before the timer is turned off.

17. The method according to claim 1, characterized in that, The method further includes: The cumulative number of times the image forming apparatus performs the nozzle cleaning operation for the second time; If the second cleaning count exceeds the second preset maximum allowable count, the nozzle cleaning operation will no longer be performed until the image forming apparatus recognizes a nozzle replacement event or the working state is in the initial state.

18. An image forming apparatus, characterized in that, include: A controller configured to perform the method according to any one of claims 1 to 17.

19. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method described in any one of claims 1 to 17.

20. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method described in any one of claims 1 to 17.

Images