Control method of image forming apparatus, image forming apparatus, medium, and product

Abstract

The present disclosure relates to the field of printing technology, and particularly provides a control method of an image forming device, an image forming device, a medium and a product. The method comprises: a controller acquiring a first vibration signal collected by a vibration sensor, the first vibration signal being a vibration signal generated when a photosensitive drum assembly starts to contact and / or separate from a transfer belt and collected by the vibration sensor; and the controller reducing a speed at which the photosensitive drum assembly starts to contact and / or separate from the transfer belt next time in a case where the first vibration signal exceeds a preset allowable range according to a vibration threshold. The present disclosure reduces wear when components in the image forming device contact or separate, and improves the service life of the components.

Description

Technical Field

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

[0002] In image forming equipment (such as printers, copiers, or digital printing machines), multiple organic photo-conductor drums (OPCs) can be arranged along one side of the transfer belt. The primary transfer roller on the other side of the intermediate transfer belt (ITB) picks up the toner on the photo-conductor drum, so that the toner can be transported to the secondary transfer roller through the transfer belt, and then the toner is transferred to the printing paper to achieve printing.

[0003] In some image forming devices, the photosensitive drum and transfer belt are in a non-contact state when not imaging. When an imaging task is required, the photosensitive drum is controlled to adhere to the transfer belt so that the primary transfer roller can adsorb toner onto the transfer belt and separate from the transfer belt after the printing task is completed.

[0004] However, the process of contact and separation between the photosensitive drum and the transfer belt generates noise and friction, which not only affects the user experience to some extent, but also affects the lifespan of the transfer belt and the photosensitive drum. Summary of the Invention

[0005] In view of the above problems, this disclosure is made to provide a control method for an image forming apparatus, an image forming apparatus, a medium, and a product. This disclosure reduces wear when components in the image forming apparatus come into contact or separate, and improves the service life of the components.

[0006] According to a first aspect of this disclosure, a control method for an image forming apparatus is provided. The image forming apparatus includes: a photosensitive drum assembly, a transfer belt, a vibration sensor, and a controller; the controller is connected to the vibration sensor; the method includes: The controller acquires the first vibration signal collected by the vibration sensor. The first vibration signal is the vibration signal generated when the photosensitive drum assembly and the transfer belt begin to contact and / or separate. If the controller determines that the first vibration signal exceeds the preset allowable range based on the vibration threshold, it reduces the speed at which the photosensitive drum assembly begins to contact and / or separate from the transfer belt the next time.

[0007] According to a second aspect of this disclosure, an image forming apparatus is provided, comprising: a photosensitive drum assembly, a transfer belt, a vibration sensor, and a controller; The vibration sensor is used to collect the first vibration signal generated when the photosensitive drum assembly and the transfer belt begin to contact and / or separate, and sends the first vibration signal to the controller; The controller is used to execute the methods of the first aspect.

[0008] According to a third aspect of this disclosure, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a controller, implements the method of the first aspect.

[0009] According to a fourth aspect of this disclosure, a computer program product is provided, including a computer program that, when executed by a controller, implements the method of the first aspect.

[0010] The control method, image forming apparatus, medium, and product provided in this disclosure acquire vibration signals when the photosensitive drum assembly contacts and separates from the transfer belt using a vibration sensor. The controller determines the vibration state by combining a preset vibration threshold. When the vibration exceeds the preset allowable range, the operating speed of subsequent contact or separation is reduced, which effectively alleviates the impact vibration between the photosensitive drum assembly and the transfer belt, reduces the operating noise of the device, and reduces the mechanical wear between components in the device.

[0011] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0012] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0013] Figure 1 This is a partial longitudinal cross-sectional schematic diagram of an image forming device provided in related technologies.

[0014] Figure 2 This is a partial longitudinal cross-sectional schematic diagram of an image forming apparatus according to an embodiment of the present disclosure.

[0015] Figure 3 This is a partial structural schematic diagram of a photosensitive drum assembly according to an embodiment of the present disclosure.

[0016] Figure 4 This is a flowchart of a control method for an image forming apparatus according to an embodiment of the present disclosure.

[0017] Figure 5This is a schematic diagram of a signal curve for a controller to determine the vibration difference between a first vibration signal and a vibration threshold according to an embodiment of the present disclosure.

[0018] Figure 6 This is a schematic diagram of a portion of the structure of a primary transfer roller approaching the photosensitive drum assembly, according to an embodiment of this disclosure.

[0019] Figure 7 This is a schematic diagram of a computer program product according to an embodiment of the present disclosure.

[0020] Figure 8 This is a hardware block diagram of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0022] In related technologies, such as Figure 1 As shown, Figure 1 A partial longitudinal cross-sectional schematic diagram of an image forming apparatus provided in the related art is shown. The image forming apparatus includes a transfer belt a1, a photosensitive drum a21 arranged along one side of the transfer belt a1, and a primary transfer roller a3 arranged on the other side of the transfer belt a1 corresponding to the photosensitive drum a21. The primary transfer roller a3 is attached to the transfer belt a1. It can be understood that when the image forming apparatus is a device capable of color printing, four photosensitive drums for forming yellow, magenta, cyan and black are arranged along one side of the transfer belt in the image forming apparatus.

[0023] In this process, after the image forming device receives the printing task, it starts the photosensitive drum a21 and controls the primary transfer roller a3 to move closer to the photosensitive drum a21, so as to drive the transfer belt a1 to adhere to the photosensitive drum a21. This allows the primary transfer roller a3 to adsorb the toner on the photosensitive drum a21 onto the transfer belt a1, and the transfer belt a1 to transfer the toner to the secondary transfer roller (…). Figure 1 The toner is transferred from the printing paper to the paper (not shown) to achieve printing. After the printing task is completed, the primary transfer roller a3 moves away from the photosensitive drum a21 to separate the transfer belt a1 from the photosensitive drum a21, so as to facilitate the next printing task. This not only avoids the continuous squeezing and adhesion caused by the two sticking together for a long time, reducing static wear and deformation of the parts and extending their service life, but also prevents residual toner from contaminating each other and ensures the quality of subsequent printing images.

[0024] It should be noted that the process of the image forming apparatus controlling the primary transfer roller to move closer to the photosensitive drum can be a process of pressing down or lifting the primary transfer roller closer to the photosensitive drum. Specifically, it can be determined based on the mechanical design of the image forming apparatus, and this disclosure does not limit it.

[0025] During the execution of the above printing tasks, the contact and separation process between the photosensitive drum and the transfer belt will generate noise, affecting the user experience; at the same time, the varying degrees of friction caused by the back-and-forth contact and separation between the photosensitive drum and the transfer belt will also affect the lifespan of the transfer belt and the photosensitive drum.

[0026] To address the aforementioned problems, embodiments of this disclosure provide an image forming apparatus. Figure 2 This is a partial longitudinal cross-sectional schematic diagram of an image forming apparatus provided in an embodiment of this disclosure, such as... Figure 2 As shown, the image forming apparatus 200 includes: a photosensitive drum assembly a2, a transfer belt a1, a vibration sensor a4, and a controller a5. The photosensitive drum assembly a2 is disposed on the first side of the transfer belt a1, and the photosensitive drum assembly a2 includes a photosensitive drum a21. The vibration sensor a4 is disposed at a position less than a preset distance from the photosensitive drum a21, and the vibration sensor a4 is connected to the controller a5. The vibration sensor a4 is used to collect a first vibration signal generated when the photosensitive drum assembly a2 and the transfer belt a1 begin to contact and / or separate, and sends the first vibration signal to the controller a5. The controller a5 is used to execute the control method of the image forming apparatus provided in this embodiment. The image forming apparatus collects the vibration signal when the photosensitive drum assembly contacts and separates from the transfer belt through the vibration sensor and transmits it to the controller. The controller adaptively adjusts the operating speed according to the corresponding method, effectively reducing the operating noise of the equipment and reducing component wear, thereby extending the service life of the device.

[0027] It should be noted that, in this embodiment, a primary transfer roller is provided on the second side of the transfer belt, and the location of the vibration sensor can be determined based on actual needs; this embodiment does not limit this. When the image forming device is a device capable of color printing, such as... Figure 2 As shown, the photosensitive drum assembly includes four photosensitive drums for forming yellow, magenta, cyan, and black colors; wherein, the vibration sensor can be a vibration detection device such as a ceramic piezoelectric sensor, an accelerometer, or an eddy current sensor.

[0028] Optionally, the photosensitive drum assembly may also include a photosensitive drum support or a photosensitive drum housing, used to support and position the photosensitive drum, ensuring its stable operation; please refer to [link / reference needed]. Figure 2 The photosensitive drum assembly a2 includes a photosensitive drum support a22.

[0029] In one optional embodiment, a vibration sensor is disposed on the photosensitive drum assembly; wherein, the vibration sensor can be fixedly installed in a stable mounting area in the photosensitive drum assembly, such as on the photosensitive drum support, inside the photosensitive drum support, or on the housing of the photosensitive drum; by disposing of the vibration sensor on the photosensitive drum assembly, the small vibration amplitude of the photosensitive drum assembly during operation can be utilized to reduce interference caused by the inherent vibration of the equipment, accurately collect vibration signals when the photosensitive drum assembly contacts and separates from the transfer belt, ensure the reliability of the detection data, enable the controller to achieve precise speed adjustment, thereby reducing operating noise and reducing component wear.

[0030] Optionally, the number of vibration sensors for detecting vibration signals for each photosensitive drum may include at least one, and the specific number may be determined based on actual needs. This disclosure does not limit this number.

[0031] For example, such as Figure 3 As shown, in Figure 3 In the partial structural schematic diagram of the photosensitive drum assembly a2 shown, three vibration sensors a4 are installed inside the photosensitive drum support a22 to detect the vibration signal of the photosensitive drum a21.

[0032] It should be noted that after receiving a printing task, the image forming apparatus starts the printing process and the photosensitive drum assembly begins to operate. When the transfer belt performs the action of pressing down to contact the photosensitive drum assembly or lifting to separate from the photosensitive drum assembly, the vibration sensor collects the first vibration signal generated during the contact or separation process in real time and transmits the first vibration signal to the controller. The controller is used to execute the control method of the image forming apparatus provided in this embodiment of the present disclosure based on the first vibration signal and the vibration threshold.

[0033] Figure 4 A flowchart illustrating a control method for an image forming apparatus according to an exemplary embodiment of the present disclosure is shown. This control method is applied to the image forming apparatus provided in the embodiments of the present disclosure, such as... Figure 4 As shown, the method in this embodiment of the disclosure may include: Step S401: The controller acquires the first vibration signal collected by the vibration sensor; The first vibration signal is collected by the vibration sensor and is generated when the photosensitive drum assembly begins to contact and / or separate from the transfer belt. In step S402, if the controller determines that the first vibration signal exceeds the preset allowable range based on the vibration threshold, it reduces the speed at which the photosensitive drum assembly begins to contact and / or separate from the transfer belt the next time. In summary, the control method for the image forming apparatus provided in this disclosure collects vibration signals when the photosensitive drum assembly contacts and separates from the transfer belt using a vibration sensor. The controller determines the vibration state by combining a preset vibration threshold. When the vibration exceeds the preset allowable range, the operating speed of subsequent contact or separation is reduced, which effectively alleviates the impact vibration between the photosensitive drum assembly and the transfer belt, reduces the operating noise of the device, and reduces the mechanical wear between components in the device.

[0034] The following are Figure 4 The specific implementation methods of each step in the illustrated embodiment are described in detail below: In step S401, the controller acquires the first vibration signal collected by the vibration sensor.

[0035] In this embodiment of the disclosure, during the entire operation of the image forming apparatus, from printing to the completion of the printing task, the vibration sensor can transmit the collected vibration signals to the controller in real time. The first vibration signal is the vibration signal collected by the vibration sensor when the photosensitive drum assembly and the transfer belt begin to contact and / or separate.

[0036] In one optional implementation, the process of the controller acquiring the first vibration signal collected by the vibration sensor includes: after determining that the printing task has started, the controller receives the vibration signal sent by the vibration sensor in real time, and determines the vibration signal belonging to the time interval when the photosensitive drum assembly and the transfer belt begin to contact as the first vibration signal according to the predetermined printing time interval; and / or, after determining that the printing task has been completed, the controller receives the vibration signal sent by the vibration sensor in real time, and determines the vibration signal belonging to the time interval when the photosensitive drum assembly and the transfer belt begin to separate as the first vibration signal according to the predetermined printing time interval.

[0037] The printing timing interval refers to the sequence of actions performed by each component and the corresponding dedicated time period pre-planned by the controller when the image forming device executes a printing task.

[0038] Optionally, when there are multiple vibration sensors used to detect each photosensitive drum, the controller determines the average value of the vibration signals collected by each vibration sensor during the time interval when the photosensitive drum assembly begins to contact the transfer belt as the first vibration signal; or, the controller determines the average value of the maximum vibration signals collected by each vibration sensor during the time interval when the photosensitive drum assembly begins to contact the transfer belt as the first vibration signal.

[0039] In step S402, if the controller determines that the first vibration signal exceeds the preset allowable range based on the vibration threshold, it reduces the speed at which the photosensitive drum assembly begins to contact and / or separate from the transfer belt the next time.

[0040] In this embodiment of the disclosure, the vibration threshold is a predetermined vibration amplitude critical value, which is a reference standard for distinguishing abnormal impacts in contact and / or separation between the transfer belt and the photosensitive drum. The vibration threshold can be a single value or a range of values. The vibration threshold can be determined based on historical vibration data of the photosensitive drum in the photosensitive drum assembly of the image forming device under stable operating conditions. Specifically, it can be determined based on the characteristics of different devices, and this embodiment of the disclosure does not limit this.

[0041] In one optional implementation, since the image forming device typically starts the photosensitive drum assembly first after receiving a print job, and then controls the transfer belt to contact the photosensitive drum assembly to execute the print job after the photosensitive drum is running smoothly, when the vibration sensor is installed on the photosensitive drum assembly mechanism, the vibration sensor is also used to collect the vibration signal generated when the photosensitive drum assembly rotates, and send the vibration signal generated when the photosensitive drum assembly rotates to the controller; wherein, the controller obtains the vibration threshold based on the second vibration signal generated when the rotation speed of the photosensitive drum assembly is stable after startup. By synchronously collecting the vibration signal of the photosensitive drum assembly operation by the vibration sensor, the controller generates the vibration threshold based on the second vibration signal when the rotation speed of the photosensitive drum is stable. The judgment criteria can be set in combination with the actual operating state of the equipment during each print job execution, effectively distinguishing between the stable operation vibration of the photosensitive drum assembly and the impact vibration caused by contact and / or separation, avoiding misjudgment caused by fixing the vibration threshold in the scenario of unstable dynamic contact and / or separation between the photosensitive drum assembly and the transfer belt, and further improving the accuracy and reliability of speed adjustment for contact and / or separation between the photosensitive drum assembly and the transfer belt.

[0042] Similarly, the process by which the controller obtains the vibration threshold based on the second vibration signal generated when the rotation speed of the photosensitive drum assembly stabilizes after startup includes: after determining that the printing task has started, the controller receives the vibration signal sent by the vibration sensor in real time, and determines the vibration signal belonging to the stable operation sequence interval of the photosensitive drum assembly as the second vibration signal according to the pre-determined printing sequence interval; then, the vibration threshold is determined based on the second vibration signal.

[0043] Optionally, the process by which the controller determines the vibration threshold based on the second vibration signal includes: determining the maximum and minimum values ​​in the second vibration signal as the maximum and minimum values ​​of the vibration threshold interval to obtain the vibration threshold interval; or, determining the median or maximum value in the second vibration signal as the vibration threshold.

[0044] Understandably, when there are multiple vibration sensors used to detect each photosensitive drum, the controller determines the maximum and minimum values ​​of the second vibration signal collected by each vibration sensor as the maximum and minimum values ​​of the vibration threshold interval, thus obtaining the vibration threshold interval; or, the median or maximum value of the second vibration signal collected by multiple vibration sensors is determined as the vibration threshold.

[0045] It should be noted that, in the embodiments disclosed herein, the preset allowable range refers to the permissible range of the difference between the first vibration signal and the vibration threshold. That is, when the difference between the first vibration signal and the vibration threshold is within the preset allowable range, it indicates that the speed at which the photosensitive drum assembly and the transfer belt begin to contact and / or separate will not cause damage to the photosensitive drum assembly and / or the transfer belt.

[0046] In one optional implementation, when the vibration threshold is a single data point, the process by which the controller determines whether the first vibration signal exceeds a preset allowable range based on the vibration threshold includes: determining a first vibration difference between the first vibration signal and the vibration threshold; determining that the first vibration signal exceeds the preset allowable range if the first vibration difference exceeds the preset allowable range; or, determining that the first vibration signal does not exceed the preset allowable range if the first vibration difference is within the preset allowable range.

[0047] In one optional implementation, when the vibration threshold is within a numerical range, the process by which the controller determines whether the first vibration signal exceeds a preset allowable range based on the vibration threshold includes: determining a second vibration difference between the first vibration signal and the maximum value in the vibration threshold range, and determining a third vibration difference between the first vibration signal and the minimum value in the vibration threshold range; if both the second vibration difference and the third vibration difference exceed the preset allowable range, determining that the first vibration signal exceeds the preset allowable range; or, if at least one of the second vibration difference and the third vibration difference is within the preset allowable range, determining that the first vibration signal does not exceed the preset allowable range.

[0048] It should be noted that, in this embodiment of the disclosure, the first vibration signal is a continuous signal, and the controller determines the vibration difference between the first vibration signal and the vibration threshold by: determining the vibration difference between the average vibration amplitude of the continuous signal and the vibration threshold, or determining the vibration difference between the maximum vibration amplitude of the continuous signal and the vibration threshold.

[0049] For example, such as Figure 5 As shown, Figure 5The diagram shows a signal curve diagram of the controller determining the vibration difference between the first vibration signal and the vibration threshold. The controller determines the largest vibration signal in the steady operation time interval t1 of the photosensitive drum assembly as the vibration threshold c, based on a pre-determined printing time interval. The controller also determines the difference between the largest vibration signal x in the time interval t2 when the photosensitive drum assembly begins to contact the transfer belt and the vibration threshold c as the vibration difference D.

[0050] In one optional implementation, after determining that the first vibration signal exceeds a preset allowable range, the controller can further: determine the speed corresponding to the next contact and / or separation of the photosensitive drum assembly and the transfer belt based on the vibration intensity of the first vibration signal. After detecting that the first vibration signal exceeds the preset allowable range, the controller can dynamically match the operating speed of the photosensitive drum assembly and the transfer belt for the next contact and / or separation action based on the vibration intensity of the first vibration signal, achieving adaptive speed adjustment. This can specifically reduce the impact vibration between components to reduce component operating noise and mechanical wear, while also ensuring a reasonable operating rhythm, improving the transfer bonding effect and equipment operating stability.

[0051] The vibration degree of the first vibration signal is used to characterize the vibration strength of the first vibration signal. The vibration degree of the first vibration signal can be: the average amplitude of the first vibration signal, the maximum amplitude of the first vibration signal, or the average of the maximum amplitude and the minimum amplitude of the first vibration signal, etc. This embodiment does not limit this.

[0052] Optionally, the process by which the controller determines the speed at which the photosensitive drum assembly will next contact and / or separate from the transfer belt based on the vibration level of the first vibration signal includes: finding the target speed corresponding to the vibration level range to which the vibration level of the first vibration signal belongs in a table of correspondence between vibration level ranges and operating speeds, thereby obtaining the speed at which the photosensitive drum assembly will next contact and / or separate from the transfer belt; the controller can match the preset vibration level range with the operating speed based on the actual vibration level of the first vibration signal to quickly lock the target action speed without complex calculations, thus efficiently and accurately determining the operating speed at which the transfer belt will next contact and / or separate from the photosensitive drum assembly.

[0053] Alternatively, the process by which the controller determines the speed corresponding to the next contact and / or separation of the photosensitive drum assembly from the transfer belt based on the vibration level of the first vibration signal includes: determining the difference between the first vibration signal and the vibration threshold to obtain a vibration error; inputting the vibration error into a proportional-integral unit for processing to obtain a speed correction; determining the difference between the current contact and / or separation speed and the speed correction as the speed corresponding to the next contact and / or separation of the photosensitive drum assembly from the transfer belt; obtaining a precise speed correction by using the difference between the first vibration signal and the vibration threshold as the vibration error and processing it through the proportional-integral unit; and then fine-tuning the current contact and / or separation speed to obtain the target operating speed for the next operation. This allows for adaptive adjustment of the operating speed based on the actual vibration impact level, enabling both rapid compensation of instantaneous impact vibrations and continuous correction of speed deviations caused by long-term component operation.

[0054] In one optional implementation, the process of the controller reducing the speed of the photosensitive drum assembly at the start of the next contact and / or separation from the transfer belt includes: if the first vibration signal is a vibration signal generated when the photosensitive drum assembly and the transfer belt begin to contact, then the speed of the photosensitive drum assembly at the start of the next printing task is reduced; or, if the first vibration signal is a vibration signal generated when the photosensitive drum assembly and the transfer belt begin to separate, then the speed of the photosensitive drum assembly at the start of the separation is reduced when the next printing task ends. This allows for precise differentiation of the operating conditions corresponding to the first vibration signal, targeted identification of contact vibration or separation vibration between the transfer belt and the photosensitive drum assembly, and matching a reduction in the operating speed of the corresponding action in the contact condition or the separation condition at the end of the next printing task. This achieves precise positioning and differentiated speed adjustment of the source of impact vibration, avoids blind speed adjustment, effectively reduces the mechanical impact generated by the corresponding contact or separation action, reduces component wear and operating noise, and ensures the stability and service life of the equipment's printing operations.

[0055] Optionally, the process of the controller reducing the speed of the photosensitive drum assembly at the next contact and / or separation from the transfer belt includes: if the first vibration signal is the vibration signal generated when the photosensitive drum assembly and the transfer belt begin to contact, then the speed of the photosensitive drum assembly at the beginning of separation from the transfer belt is reduced at the end of the current printing task. Based on the collected first vibration signal of the contact condition, the controller can accurately identify the impact vibration generated during the contact process between the transfer belt and the photosensitive drum, and specifically reduce the operating speed of the subsequent separation action after the current printing task is completed. This achieves precise correlation and adaptation between vibration anomalies and speed adjustment actions, proactively avoiding separation vibration problems caused by mechanical misalignment due to contact impact, effectively reducing the mechanical impact when the transfer belt and photosensitive drum separate, reducing equipment operating noise and component wear, continuously optimizing equipment operation smoothness, and ensuring long-term stable operation of the printing equipment.

[0056] In one optional embodiment, the image forming apparatus further includes a primary transfer roller, wherein the primary transfer roller is disposed in contact with the transfer belt; then the process by which the controller reduces the speed at which the photosensitive drum assembly begins to contact the transfer belt when starting the next printing task includes: reducing the speed at which the primary transfer roller approaches the photosensitive drum assembly when starting the next printing task, so as to reduce the speed at which the photosensitive drum assembly begins to contact the transfer belt; or, the process by which the controller reduces the speed at which the photosensitive drum assembly begins to separate from the transfer belt when ending the next printing task includes: reducing the speed at which the primary transfer roller leaves the photosensitive drum assembly when ending the next printing task, so as to reduce the speed at which the photosensitive drum assembly begins to separate from the transfer belt. By utilizing the bonding and assembly characteristics of the primary transfer roller and the transfer belt, the control of the contact and / or separation speed between the transfer belt and the photosensitive drum assembly is transformed into the control of the movement speed of the primary transfer roller as it approaches or moves away from the photosensitive drum assembly. By specifically slowing down the alignment and resetting speed of the primary transfer roller, the bonding and separation rhythm of the transfer belt is indirectly and smoothly controlled. This weakens the mechanical impact generated by the mechanism's coordination from the source of the action, effectively reducing vibration and operating noise during equipment operation, reducing reciprocating wear on transmission and docking components, ensuring smooth and precise transfer action, and significantly improving the operational stability and service life of the image forming equipment.

[0057] For example, such as Figure 6 As shown, Figure 6 This diagram illustrates a partial structural representation of a primary transfer roller approaching a photosensitive drum assembly according to an embodiment of this disclosure. Assuming that during the execution of the previous printing task, the controller determines to reduce the speed at which the photosensitive drum assembly initially contacts the transfer belt when starting the next printing task, then after the previous printing task is completed, the primary transfer roller a3 is controlled to return to position S1. Upon receiving another printing task, the controller starts the photosensitive drum assembly a2 and receives vibration signals collected by the vibration sensor a4. The vibration signal after the photosensitive drum assembly a2 has stabilized is determined as the vibration threshold. Next, the speed at which the primary transfer roller a3 approaches the photosensitive drum assembly a2 is reduced, thereby reducing the speed at which the photosensitive drum assembly a2 initially contacts the transfer belt a1. This allows the primary transfer roller a3 to approach the photosensitive drum assembly a2 at a lower speed than during the previous printing task, bringing the primary transfer roller a3 into contact with the photosensitive drum a21 in the photosensitive drum assembly a2 at position S2 to execute the printing task.

[0058] Understandably, assuming the controller determines during the previous print job execution that it will reduce the speed at which the photosensitive drum assembly begins to separate from the transfer belt when the next print job ends, then upon receiving another print job, the controller will start the photosensitive drum assembly to run, receive vibration signals collected by the vibration sensor, and determine the vibration signal after the photosensitive drum assembly has stabilized as the vibration threshold; then, it will maintain the speed at which the primary transfer roller approaches the photosensitive drum assembly during the previous print job execution, thereby maintaining the speed at which the photosensitive drum assembly begins to contact the transfer belt, so as to control the primary transfer roller to approach the photosensitive drum assembly at the same speed as during the previous print job execution, and execute the print job; and after the print job is completed, it will reduce the speed at which the primary transfer roller leaves the photosensitive drum assembly, thereby reducing the speed at which the photosensitive drum assembly begins to separate from the transfer belt, so that the primary transfer roller returns to its original position.

[0059] It should be noted that, assuming the controller determines to reduce the speed at which the transfer roller approaches the photosensitive drum assembly at the start of the next printing task, thereby reducing the speed at which the photosensitive drum assembly begins to contact the transfer belt, and also determines to reduce the speed at which the transfer roller leaves the photosensitive drum assembly at the end of the next printing task, thereby reducing the speed at which the photosensitive drum assembly begins to separate from the transfer belt, then during the execution of the next printing task, the controller operates at a reduced speed during both the initial contact and separation of the transfer belt and the photosensitive drum assembly via the transfer roller. Specifically, the above process can be referred to, and this embodiment will not be elaborated upon further.

[0060] In one optional implementation, the controller, based on a vibration threshold, determines that the first vibration signal does not exceed a preset allowable range, and therefore does not change the speed at which the photosensitive drum assembly and the transfer belt begin to contact and separate. When the first vibration signal does not exceed the preset allowable range set based on the vibration threshold, it is determined that the contact and / or separation action between the photosensitive drum assembly and the transfer belt is under normal vibration conditions, requiring no correction or adjustment of the action speed. This maintains a constant baseline operating speed when the equipment is operating well, avoiding ineffective speed adjustments under normal conditions. This ensures the stability of the printing rhythm and transfer imaging effect, while reducing redundant calculations by the controller and losses caused by frequent motor speed adjustments, making the overall speed control more precise, reasonable, and aligned with the actual operating conditions of the equipment.

[0061] Exemplary embodiments of this disclosure also provide an image forming apparatus, including: at least one controller; and a memory communicatively connected to the at least one controller. The memory stores a computer program executable by the at least one controller, which, when executed by the at least one controller, causes the image forming apparatus to perform a method according to an embodiment of this disclosure.

[0062] An existing color laser image forming device comprises two main motors. The first main motor connects to the black imaging OPC, developing roller, and intermediate transfer device, rotating them to ensure proper imaging. The second main motor connects to the C / M / Y color (hereinafter referred to as "color") imaging OPC and developing roller. Black and white images are the most frequently printed images when using image forming equipment. In the motor control of the image forming equipment, during black and white printing, the photosensitive elements of other colors (C / M / Y) remain in contact with the transfer belt. However, only black toner is used during black and white printing. Therefore, how to control the motors of the C / M / Y color imaging components during black and white printing needs further consideration to reduce abnormal consumption of color toner. Such abnormal toner consumption leads to a discrepancy between the actual toner level in the color toner cartridge and the toner level recorded by the toner cartridge chip, and may even cause problems such as toner cartridge overflow, failing to meet product specifications and resulting in toner leakage, thus affecting user experience. To help solve the above problems, this disclosure provides the following solution.

[0063] In one implementation, an exemplary embodiment of this disclosure also provides an image forming apparatus that, when printing a black and white image, controls the motor of the color imaging component to stop rotating and controls the motor of the black imaging component to keep rotating, so as to drive the black imaging component (developing component and OPC component) to rotate for imaging.

[0064] When printing a color image, the motor rotation control of the color imaging component is restored to drive the color imaging developing component and the color imaging OPC component to rotate for imaging.

[0065] In the image forming apparatus of this embodiment, there is no need to add a separation mechanism. The motor of the color imaging component can be stopped when printing black and white images. This can save costs and prevent the consumption of color toner during black and white printing, reducing the risk of toner cartridge overflow.

[0066] Under the constraints of the aforementioned mechanism, when the user selects black and white printing mode, and the motor controlling color imaging cannot completely stop, there is no separation mechanism between the OPC and the developing roller. Since the OPC and the developing roller remain in contact, a small amount of color toner will inevitably be abnormally consumed. Therefore, to reduce abnormal color toner consumption when printing black and white images, an image forming device is also provided, as follows: In color printing mode, if the next print job is detected to be a black and white image, the motor driving the black imaging component is controlled to rotate at normal speed, while the motor driving the color imaging component is controlled to slow down. If the next print job is detected to contain a color image, the motor driving the color imaging component is controlled to resume normal speed.

[0067] In one implementation, detecting that the next page of the print job is a black and white image includes: parsing the same multi-page print document and detecting whether the next page contains a color image or a black and white image.

[0068] Specifically, if it is detected that the images in the same multi-page printed document do not have color information beyond the preset number of pages, the motor driving the black imaging component will be controlled to rotate at normal speed, while the motor driving the color imaging component will be slowed down. That is, the control parameters (LSU optical power, imaging high pressure, transfer high pressure, etc.) will be switched to the parameters of the black and white printing mode to reduce abnormal consumption of color toner cartridges.

[0069] Specifically, in color mode, if the next print job is detected to be a black and white image, the motor driving the black imaging component is controlled to rotate at a normal speed, while the motor driving the color imaging component is controlled to slow down, including: Upon detecting the start of the transfer signal for the last color toner image of the previous page, and as the paper passes the OPC component of the last color, the motor driving the color imaging component begins to slow down. After the motor of the color imaging component stabilizes at a reduced speed, the next page of black and white image processing is initiated.

[0070] In color printing mode, if a color image is detected in the next print job, the motor driving the color imaging component resumes normal speed, including: When the start signal of the black toner image of the previous black and white image is detected, and when the paper passes through the black OPC component, the motor driving the color imaging component is controlled to resume normal speed, and after the speed stabilizes, the next page of color image processing is sent out.

[0071] In the image forming apparatus of this embodiment, abnormal consumption of color toner can be reduced when printing black and white images in color printing mode, thereby reducing the lifespan of the color imaging components.

[0072] Exemplary embodiments of this disclosure also provide a non-transitory computer-readable storage medium storing a computer program, wherein the computer program, when executed by a controller of an image forming apparatus, is used to cause the image forming apparatus to perform a method according to an embodiment of this disclosure.

[0073] like Figure 7 As shown, an exemplary embodiment of this disclosure also provides a computer program product 700, including a computer program 701, wherein the computer program, when executed by a controller of an image forming apparatus, is used to cause the image forming apparatus to perform a method according to an embodiment of this disclosure.

[0074] refer to Figure 8The present invention describes a structural block diagram of an electronic device 800 that can serve as an image forming apparatus of the present disclosure, which is an example of a hardware device that can be applied to various aspects of the present disclosure. The electronic device is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0075] like Figure 8 As shown, the electronic device 800 includes a computing unit 801, which can perform various appropriate actions and processes based on a computer program stored in a read-only memory (ROM) 802 or a computer program loaded from a storage unit 808 into a random access memory (RAM) 803. The RAM 803 may also store various programs and data required for the operation of the electronic device 800. The computing unit 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0076] Multiple components in electronic device 800 are connected to I / O interface 805, including: input unit 806, output unit 807, storage unit 808, and communication unit 809. Input unit 806 can be any type of device capable of inputting information to electronic device 800. Input unit 806 can receive input digital or character information and generate key signal inputs related to user settings and / or function control of electronic device. Output unit 807 can be any type of device capable of presenting information and may include, but is not limited to, a display, speaker, video / audio output terminal, vibrator, and / or printer. Storage unit 808 may include, but is not limited to, disks and optical discs. Communication unit 809 allows electronic device 800 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks, and may include, but is not limited to, modems, network cards, infrared communication devices, wireless communication transceivers, and / or chipsets, such as Bluetooth™ devices, WiFi devices, WiMax devices, cellular communication devices, and / or the like.

[0077] The computing unit 801 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 performs the various methods and processes described above. For example, in some embodiments, the methods of the exemplary embodiments of this disclosure can be implemented as a computer software program tangibly contained in a machine-readable medium, such as storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 800 via ROM 802 and / or communication unit 809. In some embodiments, the computing unit 801 can be configured to perform the methods of the exemplary embodiments of this disclosure by any other suitable means (e.g., by means of firmware).

[0078] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0079] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0080] As used in this disclosure, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0081] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0082] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0083] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions of the embodiments of this disclosure are performed, in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0084] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

Claims

1. A control method for an image forming apparatus, characterized in that, The image forming apparatus includes: a photosensitive drum assembly, a transfer belt, a vibration sensor, and a controller; the controller is connected to the vibration sensor; the method includes: The controller acquires a first vibration signal collected by the vibration sensor. The first vibration signal is the vibration signal generated when the photosensitive drum assembly begins to contact and / or separate from the transfer belt, collected by the vibration sensor. If the controller determines that the first vibration signal exceeds a preset allowable range based on a vibration threshold, it reduces the speed at which the photosensitive drum assembly will next contact and / or separate from the transfer belt.

2. The method according to claim 1, characterized in that, Reducing the speed at which the photosensitive drum assembly begins to contact and / or separate from the transfer belt next includes: If the first vibration signal is the vibration signal generated when the photosensitive drum assembly and the transfer belt begin to contact, then the speed of the photosensitive drum assembly when it begins to contact the transfer belt is reduced when the next printing task begins. If the first vibration signal is the vibration signal generated when the photosensitive drum assembly begins to separate from the transfer belt, then the speed at which the photosensitive drum assembly begins to separate from the transfer belt is reduced when the next printing task ends.

3. The method according to claim 2, characterized in that, The image forming apparatus also includes a primary transfer roller; Reducing the speed at which the photosensitive drum assembly initially contacts the transfer belt when starting the next print job includes: When starting the next printing job, reduce the speed at which the primary transfer roller approaches the photosensitive drum assembly to reduce the speed at which the photosensitive drum assembly first contacts the transfer belt; Reducing the speed at which the photosensitive drum assembly begins to separate from the transfer belt when the next printing job ends includes: When the next printing job ends, the speed at which the primary transfer roller leaves the photosensitive drum assembly is reduced, thereby reducing the speed at which the photosensitive drum assembly begins to separate from the transfer belt.

4. The method according to claim 1, characterized in that, The vibration sensor is also used to collect vibration signals generated when the photosensitive drum assembly rotates; The controller obtains the vibration threshold based on the second vibration signal generated when the rotation speed of the photosensitive drum assembly stabilizes after startup.

5. The method according to claim 1, characterized in that, After determining that the first vibration signal exceeds a preset allowable range, the method further includes: Based on the vibration level of the first vibration signal, determine the speed at which the photosensitive drum assembly will next contact and / or separate from the transfer belt.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: If the controller determines, based on the vibration threshold, that the first vibration signal does not exceed the preset allowable range, it will not change the speed at which the photosensitive drum assembly begins to contact and separate from the transfer belt.

7. An image forming apparatus, characterized in that, include: Photosensitive drum assembly, transfer belt, vibration sensor, and controller; The vibration sensor is used to collect the first vibration signal generated when the photosensitive drum assembly begins to contact and / or separate from the transfer belt, and to send the first vibration signal to the controller; The controller is configured to perform the method according to any one of claims 1 to 6.

8. The device according to claim 7, characterized in that, The vibration sensor is mounted on the photosensitive drum assembly.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the controller, it implements the method described in any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the controller, it implements the method described in any one of claims 1 to 6.

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