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

Abstract

The present application relates to the technical field of image forming, in particular to a control method of image forming equipment, image forming equipment and storage medium. Wherein, the method comprises: determining the actual rotation speed of the transfer belt according to the transmission time and the transmission distance of the detection image on the image carrier; judging whether the first difference between the actual rotation speed and the target rotation speed is within the preset error range; if not, adjusting the motor rotation speed for controlling the rotation speed of the transfer belt according to the first difference. The embodiment scheme of the present application can determine the actual rotation speed of the transfer belt according to the transmission time and the transmission distance of the detection image on the image carrier, and the adjustment control of the rotation speed of the transfer belt can be realized according to the actual rotation speed of the transfer belt.

Description

Technical Field

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

[0002] The transfer belt is a crucial image-forming component in an image-forming apparatus. The apparatus transfers an image onto the transfer belt, which then transfers the image onto the imaging medium, thus forming an image. During this process, the transfer belt is driven by a motor, and its rotational speed is by default equal to the motor speed. When the motor speed is set to a target speed, the transfer belt speed is also assumed to be the target speed. However, in practice, the motor and transfer belt are connected by gears, and gear transmission errors can cause the transfer belt speed to differ from the motor speed. Therefore, when the motor speed is set to the target speed, the actual transfer belt speed may not be the target speed, potentially leading to longitudinal compression or stretching of the image and affecting image quality. Therefore, controlling the transfer belt speed is a problem that needs to be addressed. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a control method for an image forming apparatus, an image forming apparatus, and a storage medium, which can determine the actual rotation speed of the transfer belt based on the transmission time and transmission distance of the detected image on the transfer belt. The actual rotation speed of the transfer belt helps to achieve adjustment and control of the rotation speed of the transfer belt.

[0004] In a first aspect, embodiments of the present invention provide a control method for an image forming apparatus, comprising:

[0005] The actual rotation speed of the transfer belt is determined based on the transmission time and distance of the detected image on the image carrier;

[0006] Determine whether the first difference between the actual rotational speed and the target rotational speed is within a preset error range;

[0007] If not, adjust the motor speed used to control the transfer belt speed according to the first difference.

[0008] Optionally, the transmission distance of the detected image on the image carrier includes:

[0009] The distance from the first position of the photosensitive element to the second position of the transfer belt is measured, where a color toner density (CTD) sensor is located.

[0010] Optionally, the transmission time of the detected image on the image carrier includes:

[0011] The transmission time of the detection image from the first position of the photosensitive component to the second position of the transfer belt, wherein a CTD sensor is provided at the second position for detecting the detection image.

[0012] Optionally, determining the transmission time of the detected image from a first position on the photosensitive element to a second position on the transfer belt includes:

[0013] When the CTD sensor detects the detection image on the transfer belt, the number of data N that the CTD sensor has acquired is determined.

[0014] Based on the number of data points N and the data acquisition period t of the CTD sensor, the transmission time of the detected image from the first position of the photosensitive component to the second position of the transfer belt is determined.

[0015] Optionally, adjusting the motor speed for controlling the transfer belt speed based on the first difference includes:

[0016] Based on the first difference and the target rotational speed, determine the adjustment ratio of the motor speed used to control the rotational speed of the transfer belt;

[0017] Adjust the motor speed used to control the transfer belt speed according to the ratio to be adjusted.

[0018] Secondly, embodiments of the present invention provide an image forming apparatus, comprising: a control component and an image forming component, wherein the image forming component includes a transfer belt and a photosensitive component; the control component includes:

[0019] The determining module is used to determine the actual rotation speed of the transfer belt based on the transmission time and transmission distance of the detected image on the image carrier;

[0020] The judgment module is used to determine whether the first difference between the actual rotational speed and the target rotational speed is within a preset error range;

[0021] The adjustment module is used to adjust the motor speed for controlling the transfer belt speed according to the first difference when the first difference between the actual speed and the target speed is not within a preset error range.

[0022] Optionally, the transmission distance of the detected image on the image carrier includes:

[0023] The distance from the first position of the photosensitive element to the second position of the transfer belt is measured, where a color toner density (CTD) sensor is located.

[0024] Optionally, the transmission time of the detected image on the image carrier includes:

[0025] The transmission time of the detection image from the first position of the photosensitive component to the second position of the transfer belt, wherein a CTD sensor is provided at the second position for detecting the detection image.

[0026] Optionally, the determining module is specifically used to: determine the number N of data points N that the CTD sensor has acquired when the CTD sensor detects the detection image on the transfer belt;

[0027] Based on the number of data points N and the data acquisition period t of the CTD sensor, the transmission time of the detected image from the first position of the photosensitive component to the second position of the transfer belt is determined.

[0028] Optionally, the adjustment module is specifically used to: determine the adjustment ratio of the motor speed used to control the transfer belt speed based on the first difference and the target speed;

[0029] Adjust the motor speed used to control the transfer belt speed according to the ratio to be adjusted.

[0030] Thirdly, embodiments of the present invention provide an image forming apparatus, comprising: an image forming component, the image forming component including a transfer belt and a photosensitive component; further comprising: at least one processor; and at least one memory communicatively connected to the processor, wherein: the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the method as described in the first aspect or any one of the first aspects.

[0031] Fourthly, embodiments of the present invention provide a computer-readable storage medium comprising a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform the method described in the first aspect or any one thereof.

[0032] In this embodiment of the invention, the actual rotational speed of the transfer belt can be determined based on the transmission time and distance of the detected image on the image carrier. The deviation between the actual rotational speed and the target rotational speed can be determined based on this deviation, and the motor speed used to control the rotational speed of the transfer belt can be adjusted accordingly. Adjusting the motor speed helps to bring the actual rotational speed of the transfer belt closer to the target rotational speed, thereby achieving control over the actual rotational speed of the transfer belt. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram showing the distribution of image forming components according to an embodiment of the present invention;

[0036] Figure 3 A flowchart of a control method for an image forming apparatus provided in an embodiment of the present invention;

[0037] Figure 4 A flowchart illustrating another control method for an image forming apparatus provided in an embodiment of the present invention;

[0038] Figure 5 A flowchart illustrating a control method for an image forming apparatus provided in an embodiment of the present invention;

[0039] Figure 6 A schematic diagram of a detection image provided in an embodiment of the present invention;

[0040] Figure 7 A schematic diagram of another detection image provided in an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of another image forming apparatus provided in an embodiment of the present invention. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] See Figure 1 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention. Figure 1As shown, the image forming apparatus includes a control unit, an image forming unit, a sensor unit, and a storage unit. The image forming unit, sensor unit, and storage unit are all electrically connected to the control unit. The control unit is the main control unit of the image forming apparatus, used to control the image forming unit, sensor unit, and storage unit. The storage unit stores program instructions for execution by the controlled unit, and also stores intermediate data required during program instruction execution, data collected by the sensor unit, etc., for the control unit to retrieve and execute. The image forming unit performs image forming operations under the control of the control unit.

[0045] In some embodiments, such as Figure 2 As shown, the image forming components may include a laser scanning unit (LSU), a photosensitive component, and a transfer belt, etc. Optionally, the photosensitive component may be a photosensitive drum. The sensor components may include a color toner density (CTD) sensor, etc. Figure 2 As shown, the CTD sensor can be set at a preset position on the transfer belt, such as... Figure 2 Point C is shown in the diagram. The CTD sensor can be used to detect the toner concentration of the image formed on the transfer belt.

[0046] Combination Figure 1 and Figure 2 The process of an image forming apparatus performing an image forming operation may include: a control unit issuing a working image; in response to the working image issued by the control unit, the LSU emits a laser to illuminate the photosensitive drum, forming an electrostatic latent image of the working image on the surface of the photosensitive drum; further, by supplying a developer to the electrostatic latent image, a visible image can be formed on the surface of the photosensitive drum; the visible image formed on the surface of the photosensitive drum is used to transfer onto a transfer belt; the image on the transfer belt can then be transferred onto an imaging medium, thereby forming an image on the imaging medium.

[0047] Based on the image forming process described above, embodiments of the present invention provide a control method for an image forming apparatus. In this method, a preset detection image is used, and the actual rotational speed of the transfer belt is obtained by detecting the transmission time and distance of the image on the image carrier. Optionally, the image carrier can be the aforementioned photosensitive component and / or the transfer belt. The deviation between the actual rotational speed of the transfer belt and the target rotational speed can be determined based on the actual rotational speed, and the rotational speed of the transfer belt can be adjusted and controlled based on this deviation. The control method of the image forming apparatus of the present invention will be described in detail below with reference to specific embodiments.

[0048] See Figure 3 This is a flowchart of a control method for an image forming apparatus provided in an embodiment of the present invention. Figure 3 The execution entity of the method shown is the aforementioned control component. For example... Figure 3As shown, the processing steps of this method include:

[0049] 201. Determine the actual rotation speed of the transfer belt based on the transmission time and distance of the detected image on the image carrier.

[0050] In some embodiments, the detection image described above is a preset image, which may be an image specifically used for adjusting the transfer belt speed.

[0051] In some embodiments, the image carrier may include a photosensitive element and / or a transfer belt. Optionally, the photosensitive element may be a photosensitive drum. In some examples, the image carrier includes a transfer belt, i.e., the actual rotational speed of the transfer belt is determined based on the transmission time and distance of the detected image on the transfer belt. In some examples, the image carrier includes a photosensitive drum, i.e., the actual rotational speed of the photosensitive drum is determined based on the transmission time and distance of the detected image on the photosensitive drum. The actual rotational speed of the transfer belt is calculated based on the actual rotational speed of the photosensitive drum; for example, the actual rotational speed of the photosensitive drum is equivalent to the actual rotational speed of the transfer belt.

[0052] In some examples, the image carrier includes a photosensitive drum and a transfer belt. The actual rotational speed of the transfer belt is determined based on the transmission distance and time of the detected image from a first position on the photosensitive drum to a second position on the transfer belt. In this example, the error between the rotational speed of the photosensitive drum and the rotational speed of the transfer belt is negligible. In this example, the first and second positions can be preset. Optionally, a CTD sensor can be placed at the second position to detect the detected image on the transfer belt. Specifically, the control unit sends a detected image, which is transferred onto the transfer belt via the first position on the photosensitive drum. As the transfer belt rotates, the detected image is detected by the CTD sensor when it reaches the second position on the transfer belt. Since the positions of the photosensitive drum and the CTD sensor are fixed, the transmission distance of the detected image from the first position on the photosensitive drum to the second position on the transfer belt is fixed, and the transmission time over that distance can be detected or calculated. Therefore, the actual rotational speed of the transfer belt can be determined based on the transmission distance and time of the detected image.

[0053] 202. Determine whether the first difference between the actual rotation speed and the target rotation speed of the transfer belt is within the preset error range. If yes, there is no need to adjust the actual rotation speed of the transfer belt. If no, proceed to step 203.

[0054] After the control unit acquires the actual rotational speed of the transfer belt, it compares the actual rotational speed with the target rotational speed. If the first difference between the actual rotational speed and the target rotational speed is within a preset error range, it indicates that the deviation between the actual rotational speed and the target rotational speed is within the allowable range, and no adjustment of the actual rotational speed is required. If the first difference between the actual rotational speed and the target rotational speed is not within the preset error range, it indicates that the deviation between the actual rotational speed and the target rotational speed exceeds the allowable range, and adjustment of the actual rotational speed is required. Optionally, the steps for adjusting the rotational speed of the transfer belt are described in section 203.

[0055] 203. Adjust the motor speed used to control the transfer belt speed according to the first difference.

[0056] In image forming equipment, the rotation of the transfer belt is controlled by a motor. In this step, the rotation speed of the transfer belt is adjusted by changing the speed of the motor used to control the rotation speed of the transfer belt, thereby bringing the actual rotation speed of the transfer belt closer to the target rotation speed.

[0057] Optionally, the target rotational speed can be the rotational speed of the motor used to control the transfer belt speed before adjustment. When it is necessary to adjust the transfer belt speed, the target rotational speed of the motor can be adjusted based on the first difference to make the actual rotational speed of the transfer belt closer to the target rotational speed.

[0058] See Figure 4 This is a flowchart of another control method for an image forming apparatus provided in an embodiment of the present invention. Figure 4 The execution entity of the method shown is the control unit. For example... Figure 4 As shown, the processing steps of this method include:

[0059] 301, The control unit sends out the detection image.

[0060] 302, the control unit drives the LSU, and the laser emitted by the LSU illuminates the first position on the photosensitive drum, such as... Figure 2 The location of point A in the diagram.

[0061] 303, the detection image at the first position is transferred to point B on the transfer belt by the rotation of the photosensitive drum.

[0062] 304, the image detected by the rotation of the transfer belt reaches the second position, such as... Figure 2 At point C, the CTD sensor detects the image on the transfer belt.

[0063] In steps 301-304, the transmission distance of the detection image on the transfer belt can be equivalent to the distance the detection image travels from the first position on the photosensitive drum to the second position on the transfer belt, that is, the distance the detection image travels from point A through point B to point C. Optionally, since the positions of points A, B, and C are fixed, the distance from point A through point B to point C is also fixed, denoted as S. It can be understood that the transmission distance of the detection image from point A through point B to point C is S.

[0064] In steps 301-304, the transmission time of the detection image on the transfer belt can be equivalent to the transmission time of the detection image from the first position of the photosensitive drum to the second position of the transfer belt, that is, the transmission time T of the detection image from point A through point B to point C.

[0065] In some embodiments, the time when the control unit sends the detection image to the first position (i.e., point A) of the photosensitive drum is denoted as T0, and the detection time when the CTD sensor detects the detection image at the second position (i.e., point C) of the transfer belt is denoted as T1. The transmission time of the detection image on the transfer belt can be denoted as T = T1 - T0.

[0066] In some embodiments, the time T0 for the control unit to send the detection image to the first position (i.e., point A) of the photosensitive drum can also be understood as the time for the control unit to emit a laser to point A through the LSU.

[0067] In some embodiments, the CTD sensor is activated when the control unit sends a detection image to the first position (i.e., point A) of the photosensitive drum, that is, when the LSU emits a laser to point A. When the CTD sensor detects the detection image on the transfer belt, the control unit determines the operating time of the CTD sensor. This operating time is used to represent the transmission time T of the detection image from the first position (i.e., point A) of the photosensitive drum to the second position (i.e., point C) of the transfer belt.

[0068] In some embodiments, the CTD sensor is activated when the LSU emits a laser towards point A. When the CTD sensor detects the detection image on the transfer belt, the number N of data points acquired by the CTD sensor is determined. Based on this number N and the data acquisition period t of the CTD sensor, the transmission time T of the detection image from point A to point B and then to point C is determined.

[0069] 305. The control unit calculates the actual rotational speed V1 of the transfer belt based on the transmission distance S and transmission time T of the detected image on the transfer belt. V1 = S / T. In this embodiment of the invention, the photosensitive drum and the transfer belt are considered as a whole, so the measured speed V1 can ignore the rotational speed error between the photosensitive drum and the transfer belt and is regarded as the actual rotational speed of the transfer belt.

[0070] 306. The control unit determines whether the first difference between the actual rotational speed V1 of the transfer belt and the target rotational speed is within a preset error range. If yes, there is no need to adjust the actual rotational speed of the transfer belt. If no, proceed to step 307.

[0071] 307, The control unit adjusts the motor speed used to control the transfer belt speed according to the first difference.

[0072] In this embodiment of the invention, the control component presets a detection image and presets a first position and a second position on the photosensitive drum and the transfer belt. When the CTD sensor detects the detection image on the transfer belt, the control component can determine the transmission distance of the detection image based on the preset first and second positions, and can also determine the transmission time of the detection image. Based on the transmission distance and the transmission time, the control component can determine the actual rotational speed of the transfer belt. Based on the deviation between the actual rotational speed of the transfer belt and the target rotational speed, the rotational speed of the transfer belt can be adjusted and controlled to make the actual rotational speed of the transfer belt closer to the target rotational speed.

[0073] See Figure 5 This is a flowchart of a control method for an image forming apparatus provided in an embodiment of the present invention. Figure 5 The execution entity of the method shown is the control unit. For example... Figure 5 As shown, the processing steps of this method include:

[0074] 401, The control unit sends out the detection image.

[0075] 402, the control unit drives the LSU, and the laser emitted by the LSU illuminates the first position on the photosensitive drum, such as... Figure 2 The CTD sensor is activated at point A in the diagram. Optionally, after the control unit sends the detection image, the detection image is transmitted from the first position of the photosensitive drum to the second position of the transfer belt. A CTD sensor is installed at the second position of the transfer belt to detect the detection image on the transfer belt. For details, please refer to [link to documentation]. Figure 4 The explanation will not be repeated here.

[0076] 403. The control unit analyzes the data acquired by the CTD sensor to determine whether the CTD sensor has detected the image on the transfer belt. If yes, proceed to step 404. If no, the control unit continues to acquire data from the CTD sensor and continues to execute step 403.

[0077] Optionally, the data acquisition period of the CTD sensor is t, meaning the CTD sensor acquires data every time interval t. When there is no detection image on the transfer belt, the value detected by the CTD sensor is the background voltage. When there is a detection image on the transfer belt, the value detected by the CTD sensor will be smaller than the background voltage. When the data acquired by the CTD sensor includes a value smaller than the background voltage, the control unit determines that the CTD sensor has detected a detection image on the transfer belt.

[0078] 404, The control unit determines the number N of data that the CTD sensor has acquired when it detects the detection image on the transfer belt.

[0079] 405. The control unit determines the transmission time T of the detected image based on the number of data N and the data acquisition cycle t of the CTD sensor.

[0080] 406. The control unit calculates the actual rotational speed V1 of the transfer belt based on the transmission distance S and transmission time T: V1 = S ÷ T. Optionally, the transmission distance S between the detection image and the second position is used for details. Figure 4 The relevant explanations will not be repeated here.

[0081] 407. The control unit determines whether the first difference between the actual rotational speed V1 and the target rotational speed V0 of the transfer belt is within a preset error range. If yes, there is no need to adjust the actual rotational speed of the transfer belt. If no, proceed to step 408.

[0082] 408. The control unit determines the adjustment ratio of the motor speed used to control the transfer belt speed based on the first difference and the target speed V0. Optionally, the adjustment ratio of the motor speed used to control the transfer belt speed Vn% = (|V1-V0|÷V0).

[0083] 409. The control unit adjusts the motor speed used to control the transfer belt speed according to the ratio to be adjusted. Optionally, the adjusted motor speed can be V×(1±Vn%), where V can be the current speed of the motor used to control the transfer belt speed.

[0084] In this embodiment of the invention, the transmission time of the detected image on the transfer belt can be determined by the number of data points collected by the CTD sensor. Furthermore, this embodiment of the invention can adjust the motor speed proportionally, thereby achieving the purpose of adjusting the transfer belt speed.

[0085] In this embodiment of the invention, the control unit may repeatedly execute the above steps 401-410 until the actual rotation speed of the transfer belt reaches or approaches the target rotation speed.

[0086] See Figure 6 This is a schematic diagram of a detection image provided in an embodiment of the present invention. Figure 6 As shown, the detection image used to calculate the actual rotational speed of the transfer belt can be two rectangular color blocks. Optionally, the rectangular color blocks can be any of the four CMYK colors. Figure 6 As shown, the line connecting the two rectangular color blocks is parallel to the scanning direction and perpendicular to the transport direction of the transfer belt. To detect these two rectangular color blocks, two CTD sensors can be symmetrically arranged at point C of the transfer belt, with each CTD sensor used to detect one rectangular color block.

[0087] See Figure 7 This is a schematic diagram of another detection image provided in an embodiment of the present invention. Figure 7 As shown, the detection image used to calculate the actual rotation speed of the transfer belt can be a rectangular color block. Optionally, the rectangular color block can be any one of the four CMYK colors. Figure 7 As shown, the length of the rectangular color block is parallel to the scanning direction, and the width of the rectangular color block is parallel to the transport direction of the transfer belt. Optionally, along the length of the rectangular color block, the two wide sides of the rectangular color block are equidistant from the edge of the transfer belt, that is, the rectangular color block is positioned at the center of the width of the transfer belt. To detect this rectangular color block, a CTD sensor can be set at point C of the transfer belt. This CTD sensor can be positioned at the center of the width of the transfer belt for detection. Figure 7 The rectangular color blocks are shown. In some examples, the control unit may issue several rectangular color blocks sequentially in time. For example, the control unit issues the first color block at second 0, the second color block at second 1, and so on. In this embodiment of the invention, the first color block issued by the control unit is used as the detection image.

[0088] It should be noted that, Figure 6 and Figure 7 The detection image shown is only an example. In actual implementation, the detection image can be set to any shape and color, such as vertical lines, intersecting lines, or triangles, etc., which will not be listed here.

[0089] Corresponding to the above method, embodiments of the present invention provide an image forming apparatus. See also... Figure 8 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention. Figure 8As shown, the image forming apparatus includes a control unit and an image forming unit. The image forming unit includes a transfer belt and a photosensitive unit, such as a photosensitive drum. The control unit specifically includes a determining module 501, a judging module 502, and an adjusting module 503. The determining module 501 is used to determine the actual rotational speed of the transfer belt based on the transmission time and distance of the detected image on the image carrier. The judging module 502 is used to judge whether a first difference between the actual rotational speed and the target rotational speed is within a preset error range. The adjusting module 503 is used to adjust the motor speed for controlling the transfer belt rotational speed according to the first difference when the first difference between the actual rotational speed and the target rotational speed is not within the preset error range.

[0090] Optionally, the transmission distance of the detected image on the image carrier includes: the distance from the first position of the photosensitive component to the second position of the transfer belt, wherein a color toner density (CTD) sensor is provided at the second position.

[0091] Optionally, the transmission time of the detected image on the image carrier includes: the transmission time of the detected image from a first position of the photosensitive component to a second position of the transfer belt, wherein a CTD sensor is provided at the second position for detecting the detected image.

[0092] Optionally, the determining module 501 is specifically used to: determine the number N of data that the CTD sensor has collected when the CTD sensor detects the detection image on the transfer belt;

[0093] Based on the number of data points N and the data acquisition period t of the CTD sensor, the transmission time of the detected image from the first position of the photosensitive component to the second position of the transfer belt is determined.

[0094] Optionally, the adjustment module 503 is specifically used to: determine the adjustment ratio of the motor speed used to control the transfer belt speed according to the first difference and the target speed; and adjust the motor speed used to control the transfer belt speed according to the adjustment ratio.

[0095] The image forming apparatus of this invention can execute the control method for the image forming apparatus involved in the above method embodiments. For parts of the image forming apparatus not described in detail in this invention, please refer to the description of the apparatus. Figures 2-7 The relevant descriptions of the illustrated embodiments are provided below. For the execution process and technical effects of this technical solution, please refer to [link / reference]. Figures 2-7 The descriptions in the illustrated embodiments will not be repeated here.

[0096] It should be understood that Figure 8The division of the various modules in the image forming apparatus shown is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented in software via processing element calls, while others are implemented in hardware. Moreover, these modules can be integrated together or implemented independently. During implementation, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0097] For example, these modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs). Alternatively, these modules can be integrated together as a System-On-a-Chip (SOC).

[0098] See Figure 9 This is a schematic diagram of another image forming apparatus provided in an embodiment of the present invention. Figure 9 As shown, the image forming apparatus is represented in the form of a general-purpose computing device. The image forming apparatus includes an image forming component, which comprises a transfer belt and a photosensitive component. For example... Figure 9 As shown, the image forming apparatus may also include, but is not limited to: one or more processors 510, communication interface 520, memory 530, and communication bus 540 connecting different system components (including processor 510, communication interface 520 and memory 530).

[0099] The communication bus 540 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0100] Electronic devices typically include a variety of computer-readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, and removable and non-removable media.

[0101] Memory 530 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 530 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0102] The processor 510 executes various functional applications and data processing by running programs stored in the memory 530, such as implementing the control method of the image forming apparatus provided in the embodiments of the present invention.

[0103] This invention provides a computer-readable storage medium including a stored program, wherein the program, when running, controls the device containing the computer-readable storage medium to execute the control method of the image forming apparatus of this invention.

[0104] The aforementioned computer-readable storage medium may be any combination of one or more computer-readable media. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, 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 device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in connection with an instruction execution system, apparatus, or device.

[0105] 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 are in 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.

[0106] 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.

[0107] Those skilled in the art will readily 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. The above descriptions are merely specific embodiments 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 scope of the claims.

Claims

1. A control method for an image forming apparatus, characterized in that, include: The actual rotation speed of the transfer belt is determined based on the transmission time and distance of the detected image on the image carrier; Determine whether the first difference between the actual rotational speed and the target rotational speed is within a preset error range; If not, adjust the motor speed used to control the transfer belt speed according to the first difference; The transmission time of the detected image on the image carrier includes: The transmission time of the detection image from the first position of the photosensitive component to the second position of the transfer belt, wherein a CTD sensor is provided at the second position for detecting the detection image; wherein, the laser scanning unit emits a laser to the first position to activate the CTD sensor when a detection image is formed at the first position.

2. The method according to claim 1, characterized in that, The transmission distance of the detected image on the image carrier includes: The distance from the first position of the photosensitive element to the second position of the transfer belt is measured, where a color toner density (CTD) sensor is located.

3. The method according to claim 1, characterized in that, Determining the transmission time of the detected image from a first position on the photosensitive element to a second position on the transfer belt includes: When the CTD sensor detects the detection image on the transfer belt, the number of data N that the CTD sensor has acquired is determined. Based on the number of data points N and the data acquisition period t of the CTD sensor, the transmission time of the detected image from the first position of the photosensitive component to the second position of the transfer belt is determined.

4. The method according to claim 1, characterized in that, The step of adjusting the motor speed used to control the transfer belt speed according to the first difference includes: Based on the first difference and the target rotational speed, determine the adjustment ratio of the motor speed used to control the rotational speed of the transfer belt; Adjust the motor speed used to control the transfer belt speed according to the ratio to be adjusted.

5. An image forming apparatus, characterized in that, include: A control unit and an image forming unit, the image forming unit including a transfer belt and a photosensitive unit; The control component includes: The determining module is used to determine the actual rotation speed of the transfer belt based on the transmission time and transmission distance of the detected image on the image carrier; The judgment module is used to determine whether the first difference between the actual rotational speed and the target rotational speed is within a preset error range; The adjustment module is used to adjust the motor speed for controlling the transfer belt speed according to the first difference when the first difference between the actual speed and the target speed is not within the preset error range. The transmission time of the detected image on the image carrier includes: The transmission time of the detection image from the first position of the photosensitive component to the second position of the transfer belt, wherein a CTD sensor is provided at the second position for detecting the detection image; wherein, the laser scanning unit emits a laser to the first position to activate the CTD sensor when a detection image is formed at the first position.

6. The device according to claim 5, characterized in that, The transmission distance of the detected image on the image carrier includes: The distance from the first position of the photosensitive element to the second position of the transfer belt is measured, where a color toner density (CTD) sensor is located.

7. The device according to claim 5, characterized in that, The determining module is specifically used for: When the CTD sensor detects the detection image on the transfer belt, the number of data N that the CTD sensor has acquired is determined. Based on the number of data points N and the data acquisition period t of the CTD sensor, the transmission time of the detected image from the first position of the photosensitive component to the second position of the transfer belt is determined.

8. The device according to claim 5, characterized in that, The adjustment module is specifically used for: Based on the first difference and the target rotational speed, determine the adjustment ratio of the motor speed used to control the rotational speed of the transfer belt; Adjust the motor speed used to control the transfer belt speed according to the ratio to be adjusted.

9. An image forming apparatus, characterized in that, include: An image forming component, comprising a transfer belt and a photosensitive component; further comprising: At least one processor; and At least one memory communicatively connected to the processor, wherein: The memory stores program instructions that can be executed by the processor, which invokes the program instructions to perform the method as described in any one of claims 1 to 4.

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

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