Laser printer selenium drum detection method and device, electronic equipment and storage medium

Abstract

The invention provides a laser printer selenium drum detection method and device, electronic equipment and a storage medium, and relates to the technical field of laser printing. The method comprises the following steps: sending a first control signal to a laser scanner to control the laser scanner to scan the surface of a photosensitive drum; sending a second control signal to the rotation controller so as to control the photosensitive drum to rotate through the rotation controller; receiving a laser signal reflected by the surface of the photosensitive drum through a photodiode array to obtain a surface image of the photosensitive drum; comparing the surface image with a pre-stored standard surface image, and identifying a defect area on the surface of the photosensitive drum; and generating a detection report according to the defect area on the surface of the photosensitive drum, the detection report comprising the defect area on the surface of the photosensitive drum and a replacement suggestion. In this way, the technical scheme for detecting whether the photosensitive drum has defects such as scratches or not in the using process of the laser printer is provided.

Description

Technical Field

[0001] The present application relates to the field of laser printing technology, and in particular to a laser printer toner cartridge detection method, device, electronic device, and storage medium. Background Art

[0002] In the field of laser printing technology, the toner cartridge is a crucial component of laser printers. The photosensitive drum within the toner cartridge is crucial for printing, and the condition of the drum directly affects print quality. For example, scratches on the drum can cause unwanted black lines in printed content.

[0003] How to promptly detect defects such as scratches in the photosensitive drum during the use of the laser printer so as to replace the photosensitive drum in time to avoid affecting the subsequent printing quality is an urgent problem to be solved. Summary of the Invention

[0004] The present application provides a laser printer drum detection method, device, electronic equipment and storage medium, and at least provides a technical solution for detecting whether there are defects such as scratches on the photosensitive drum during the use of the laser printer.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0006] According to one aspect of the present application, a method for detecting a laser printer drum is provided, which is applied to a detection device, wherein the drum comprises a housing, a photosensitive drum, a rotation controller, a laser scanner, and a photodiode array, wherein the rotation controller is used to control the rotation of the photosensitive drum, the laser scanner and the photodiode array are both arranged on the inner wall of the housing, the laser scanner is used to scan the surface of the photosensitive drum with a laser, and the photodiode array is used to receive the laser reflected by the photosensitive drum, the rotation controller, the laser scanner, and the photodiode array are all in communication with the detection device, and the method comprises: The device sends a first control signal to control the laser scanner to scan the surface of the photosensitive drum; sends a second control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; receives the laser signal reflected from the surface of the photosensitive drum through the photodiode array to obtain a surface image of the photosensitive drum; compares the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum, wherein the defective areas include scratch areas and / or coating defective areas; generates a detection report based on the defective areas on the surface of the photosensitive drum, wherein the detection report includes the defective areas on the surface of the photosensitive drum and replacement suggestions.

[0007] A laser scanner and photodiode array capture an image of the photosensitive drum's surface. By comparing this image with a standard surface image, the system can identify differences between the two surfaces and, consequently, determine defective areas on the drum's surface. A test report, including replacement recommendations, is then generated based on the defective areas. This provides a prompt reminder to replace the drum if defective areas indicate a need for replacement.

[0008] In some embodiments, comparing the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum includes: preprocessing the surface image; calculating the absolute difference between the preprocessed surface image and the standard surface image; and identifying defective areas on the surface of the photosensitive drum using a threshold segmentation method based on the absolute difference.

[0009] In some embodiments, the toner drum also includes a charging roller, a voltage controller and a non-contact electrometer array, the voltage controller is used to control the voltage of the charging roller to charge the photosensitive drum, the non-contact electrometer array is arranged on the inner wall of the outer shell and is communicatively connected to the detection device, and is used to detect the amount of charge on the surface of the photosensitive drum after charging, and the non-contact electrometer array covers the photosensitive drum in the length direction. The method also includes: after the charging roller charges the photosensitive drum, sending a third control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; detecting the amount of charge on the surface of the photosensitive drum through the non-contact electrometer array; constructing a charge distribution diagram of the surface of the photosensitive drum according to the amount of charge on the surface of the photosensitive drum; when the charge distribution diagram indicates that the charge distribution on the surface of the photosensitive drum is uneven, sending a fourth control signal to the voltage controller to adjust the voltage of the charging roller to charge the photosensitive drum.

[0010] A non-contact electrometer array can measure the charge on the surface of a charged photosensitive drum, thereby determining whether the surface charge distribution is uniform. If the charge distribution on the drum surface is uneven, controlling the voltage controller to adjust the voltage applied by the charging roller to the drum can improve the uniformity of the charge distribution on the drum surface, thereby enhancing print quality.

[0011] In some embodiments, the toner cartridge also includes a toner shell, a toner silo formed by the toner shell and the outer shell, a first pressure sensor and a first alarm, wherein the first pressure sensor is arranged in the toner silo for monitoring the amount of toner in the toner silo; the first pressure sensor and the first alarm are both communicatively connected to the detection device; the method also includes: monitoring the pressure of the toner in the toner silo according to the first pressure sensor; when the pressure of the toner is less than a first pressure value threshold, sending a fifth control signal to the first alarm to control the first alarm to issue a toner shortage alarm.

[0012] By configuring a first pressure sensor and a first alarm in the toner cartridge, the toner level in the toner hopper can be monitored in real time. When the toner pressure falls below a first pressure threshold, the toner hopper is deemed low and requires timely replenishment. The first alarm, providing a low-toner warning, prompts the user to replenish toner promptly, avoiding poor print quality and incomplete printing due to low toner.

[0013] In some embodiments, the toner cartridge also includes a waste powder bin, a second pressure sensor and a second alarm, the second pressure sensor is arranged in the waste powder bin, and is used to monitor the amount of waste powder in the waste powder bin; the second pressure sensor and the second alarm are both communicatively connected to the detection device; the method also includes: monitoring the pressure of the waste powder in the waste powder bin according to the second pressure sensor; when the pressure of the waste powder is greater than the second pressure value threshold, sending a sixth control signal to the second alarm to control the second alarm to issue an alarm that the waste powder bin is full.

[0014] By configuring a second pressure sensor and a second alarm in the toner cartridge, the amount of waste toner in the waste toner bin can be monitored in real time. When the pressure of the waste toner exceeds the second pressure threshold, the waste toner bin is considered full and needs to be cleaned promptly. The second alarm can also be used to issue a full waste toner bin warning, prompting the user to clean the waste toner bin promptly, preventing waste toner from sticking to the photosensitive drum due to removal of the waste toner bin, which could lead to poor print quality.

[0015] According to another aspect of the present application, a laser printer drum detection device is also provided, which is applied to a detection device, wherein the drum comprises a housing, a photosensitive drum, a rotation controller, a laser scanner and a photodiode array, wherein the rotation controller is used to control the rotation of the photosensitive drum, the laser scanner and the photodiode array are both arranged on the inner wall of the housing, the laser scanner is used to scan the surface of the photosensitive drum by laser, and the photodiode array is used to receive the laser reflected by the photosensitive drum, the rotation controller, the laser scanner and the photodiode array are all connected to the detection device in communication, and the device comprises: a sending module for sending a first control signal to the laser scanner to Control the laser scanner to scan the surface of the photosensitive drum; the sending module is further used to send a second control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; the receiving module is used to receive the laser signal reflected from the surface of the photosensitive drum through the photodiode array to obtain the surface image of the photosensitive drum; the identification module is used to compare the surface image with the pre-stored standard surface image to identify the defective area on the surface of the photosensitive drum, wherein the defective area includes a scratch area and / or a coating defective area; the generating module is used to generate a detection report based on the defective area on the surface of the photosensitive drum, wherein the detection report includes the defective area on the surface of the photosensitive drum and a replacement suggestion.

[0016] In some embodiments, the recognition module is used to preprocess the surface image; calculate the absolute difference between the preprocessed surface image and the standard surface image; and identify the defective area on the surface of the photosensitive drum using a threshold segmentation method based on the absolute difference.

[0017] In some embodiments, the toner drum also includes a charging roller, a voltage controller and a non-contact electrometer array. The voltage controller is used to control the voltage with which the charging roller charges the photosensitive drum. The non-contact electrometer array is arranged on the inner wall of the outer shell and is communicatively connected to the detection device, and is used to detect the amount of charge on the surface of the photosensitive drum after charging. The non-contact electrometer array covers the photosensitive drum in the length direction. The sending module is also used to send a third control signal to the rotation controller after the charging roller charges the photosensitive drum, so as to control the rotation of the photosensitive drum through the rotation controller; the receiving module is also used to detect the amount of charge on the surface of the photosensitive drum through the non-contact electrometer array; the device also includes: a construction module, which is used to construct a charge distribution map of the photosensitive drum surface according to the amount of charge on the photosensitive drum surface; the sending module is also used to send a fourth control signal to the voltage controller when the charge distribution map indicates that the charge distribution on the photosensitive drum surface is uneven, so as to adjust the voltage with which the charging roller charges the photosensitive drum.

[0018] In some embodiments, the toner cartridge also includes a toner shell, a toner silo formed by the toner shell and the outer shell, a first pressure sensor and a first alarm, wherein the first pressure sensor is arranged in the toner silo for monitoring the amount of toner in the toner silo; the first pressure sensor and the first alarm are both communicatively connected to the detection device; the receiving module is also used to monitor the pressure of the toner in the toner silo according to the first pressure sensor; the sending module is also used to send a fifth control signal to the first alarm when the pressure of the toner is less than a first pressure value threshold, so as to control the first alarm to issue an alarm for insufficient toner.

[0019] In some embodiments, the toner cartridge also includes a waste powder bin, a second pressure sensor and a second alarm, wherein the second pressure sensor is arranged in the waste powder bin for monitoring the amount of waste powder in the waste powder bin; the second pressure sensor and the second alarm are both communicatively connected to the detection device; the receiving module is also used to monitor the pressure of the waste powder in the waste powder bin according to the second pressure sensor; the sending module is also used to send a sixth control signal to the second alarm when the pressure of the waste powder is greater than a second pressure value threshold, so as to control the second alarm to issue an alarm that the waste powder bin is full.

[0020] According to another aspect of the present application, an electronic device is provided, which includes: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned laser printer drum detection methods by executing the executable instructions.

[0021] According to another aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the laser printer toner drum detection method described above is implemented.

[0022] According to another aspect of the present application, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the computer program implements any one of the above-mentioned methods for detecting a toner drum of a laser printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A flow chart of a method for detecting a laser printer drum in one embodiment of the present application is shown;

[0024] Figure 2 A schematic diagram showing a toner cartridge according to an embodiment of the present application is shown;

[0025] Figure 3 A schematic diagram showing a toner cartridge according to another embodiment of the present application;

[0026] Figure 4A flow chart of a method for detecting a laser printer drum in another embodiment of the present application is shown;

[0027] Figure 5 A schematic diagram showing a toner cartridge in yet another embodiment of the present application is shown;

[0028] Figure 6 A flow chart of a method for detecting a laser printer drum in another embodiment of the present application is shown;

[0029] Figure 7 A schematic diagram showing a toner cartridge in another embodiment of the present application is shown;

[0030] Figure 8 A flow chart of a method for detecting a laser printer drum in another embodiment of the present application is shown;

[0031] Figure 9 A structural block diagram of an electronic device in one embodiment of the present application is shown. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] In addition, the accompanying drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the blocks shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0034] The present invention provides a method for detecting a laser printer drum, which can be performed by any electronic device with computing and processing capabilities. The electronic device can be a detection device, and the monitoring device can be a smartphone, a computer, a server, etc., which are not limited by the present invention.

[0035] Figure 1 A flow chart of a laser printer drum detection method according to an embodiment of the present application is shown as follows: Figure 1 As shown, the laser printer toner drum detection method provided in the embodiment of the present application includes the following S101 to S105.

[0036] Before describing S101 to S105, it is necessary to first describe the structure of the toner cartridge in this application. Figure 2 As shown, the toner cartridge in the embodiment of the present application includes: a housing 21, a photosensitive drum 22, a rotation controller, a laser scanner 23 and a photodiode array 24. The rotation controller is used to control the rotation of the photosensitive drum 22. The laser scanner 23 and the photodiode array 24 are both arranged on the inner wall of the housing 21. The laser scanner 23 is used to scan the surface of the photosensitive drum 22 with a laser. The photodiode array 24 is used to receive the laser reflected by the photosensitive drum 22. The rotation controller, the laser scanner 23 and the photodiode array 24 are all connected to the detection device for communication.

[0037] S101 : Sending a first control signal to a laser scanner to control the laser scanner to scan the surface of a photosensitive drum.

[0038] The embodiment of the present application does not limit how to send the first control signal to the laser scanner. For example, the first control signal can be sent to the laser scanner regularly according to a preset time period to control the laser scanner to scan the surface of the photosensitive drum.

[0039] For another example, the detection device provides a control corresponding to the first control signal. By clicking the control, the detection device can be controlled to send the first control signal to the laser scanner. If the user needs to check the photosensitive drum, the user can click the control to control the detection device to send the first control signal to the laser scanner.

[0040] S102: Send a second control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller.

[0041] The embodiments of this application do not limit how the second control signal is sent to the rotation controller. For example, the second control signal can be periodically sent to the rotation controller according to a preset time period to control the rotation of the photosensitive drum via the rotation controller. It should be noted that the period for sending the second control signal to the rotation controller is the same as the period for sending the first control signal to the laser scanner.

[0042] For another example, the detection device may include a control corresponding to a second control signal. Clicking this control can cause the detection device to send the second control signal to the rotation controller. If the user wishes to inspect the photosensitive drum, the user can click this control to cause the detection device to send the second control signal to the rotation controller, thereby coordinating with the laser scanner to scan the entire surface of the photosensitive drum.

[0043] S103, receiving the laser signal reflected from the surface of the photosensitive drum through the photodiode array to obtain a surface image of the photosensitive drum.

[0044] The surface image of the photosensitive drum is used to determine whether there are defects on the drum surface. A photodiode array receives laser signals reflected from the drum surface and converts them into corresponding image data, thereby generating a surface image of the drum. The monitoring device utilizes a connection path to obtain this surface image from the photodiode array.

[0045] S104 , comparing the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum, where the defective areas include scratch areas and / or coating defective areas.

[0046] The surface of the photosensitive drum is a smooth photoconductive coating. If there are scratches or other coating defects on the surface, the flatness and reflectivity of the photosensitive drum surface will be destroyed. Therefore, when the photosensitive drum surface is scanned with the same laser scanner, the light reflected from the area with scratches or other coating defects will have obvious grayscale value mutations compared with the light reflected from the normal photosensitive drum surface.

[0047] The standard surface image is a surface image generated by scanning a non-defective area of the photosensitive drum using a laser scanner. The photosensitive drum used to generate the standard surface image is the same model as the photosensitive drum being tested.

[0048] The embodiments of the present application do not limit how to compare the surface image with the pre-stored standard surface image to identify the defective area on the surface of the photosensitive drum.

[0049] In one embodiment, the surface image is compared with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum, including: pre-processing the surface image; calculating the absolute difference between the pre-processed surface image and the standard surface image; and identifying the defective areas on the surface of the photosensitive drum using a threshold segmentation method based on the absolute difference.

[0050] The purpose of preprocessing the surface image is to remove noise in the surface image.

[0051] In another embodiment, Fourier transform and then bandpass filtering can be used to extract abnormal high frequencies, and then the defective area can be identified from the surface image based on the abnormal high frequencies. Scratches appear as high-frequency abnormalities.

[0052] S105 , generating a detection report based on the defective area on the surface of the photosensitive drum, the detection report including the defective area on the surface of the photosensitive drum and a replacement suggestion.

[0053] The replacement suggestion may be to replace or not to replace.

[0054] In one embodiment, generating a detection report based on the defective area on the surface of the photosensitive drum may include: calculating the ratio of the area of the defective area on the surface of the photosensitive drum to the surface area of the photosensitive drum; when the ratio is less than a ratio threshold, the replacement recommendation is not to replace; when the ratio is not less than the ratio threshold, the replacement recommendation is to replace; generating a detection report including the defective area on the surface of the photosensitive drum and the replacement recommendation.

[0055] A laser scanner and photodiode array capture an image of the photosensitive drum's surface. By comparing this image with a standard surface image, the system can identify differences between the two surfaces and, consequently, determine defective areas on the drum's surface. A test report, including replacement recommendations, is then generated based on the defective areas. This provides a prompt reminder to replace the drum if defective areas indicate a need for replacement.

[0056] In another embodiment, Figure 3 As shown, the toner cartridge further includes a charging roller 25, a voltage controller, and a non-contact electrometer array 26. The voltage controller is used to control the voltage with which the charging roller charges the photosensitive drum 22. The non-contact electrometer array 26 is disposed on the inner wall of the housing 21 and is in communication with the detection device to detect the amount of charge on the surface of the photosensitive drum 22 after charging. The non-contact electrometer array 26 covers the photosensitive drum 22 in the length direction. Figure 4 As shown, the laser printer drum detection method in another embodiment of the present application may include the following S401-S404.

[0057] S401 , after the charging roller charges the photosensitive drum, a third control signal is sent to the rotation controller to control the rotation of the photosensitive drum through the rotation controller.

[0058] In one embodiment, the third control signal is the same as the second control signal.

[0059] In another embodiment, the detection device is configured to periodically send a third control signal to the rotation controller after the charging roller charges the photosensitive drum.

[0060] In yet another embodiment, the detection device is configured with a preset transmission time. Based on the preset transmission time, the detection device can send the third control signal to the rotation controller after the charging roller charges the photosensitive drum. For example, as the photosensitive drum ages, the interval between sending the third control signal may become shorter.

[0061] S402: Detect the charge on the surface of the photosensitive drum using a non-contact electrometer linear array.

[0062] As the photosensitive drum rotates, the non-contact electrometer linear array can detect the total surface charge of the photosensitive drum.

[0063] S403: constructing a charge distribution map of the photosensitive drum surface according to the charge amount on the photosensitive drum surface.

[0064] S404 : When the charge distribution diagram indicates that the charge distribution on the surface of the photosensitive drum is uneven, a fourth control signal is sent to the voltage controller to adjust the voltage at which the charging roller charges the photosensitive drum.

[0065] The embodiments of the present application do not limit how to determine whether the charge distribution on the photosensitive drum surface is uneven. For example, the standard deviation of the charge distribution can be calculated based on the charge distribution graph. If the standard deviation is greater than a voltage threshold (e.g., 30V or 50V, etc.), the charge distribution on the photosensitive drum surface is considered uneven.

[0066] The embodiments of the present application do not limit how to send the fourth control signal to the voltage controller.

[0067] In one embodiment, sending the fourth control signal to the voltage controller may include: determining a non-uniform pattern of charge distribution on the drum surface according to the charge distribution map; generating a fourth control signal according to the non-uniform pattern; and sending the fourth control signal to the voltage controller.

[0068] Uneven patterns include: low in the center and high at the edges, high in the center and low at the edges, and high at one edge and low at the other.

[0069] Each uneven mode corresponds to a preset voltage adjustment method. Different voltage adjustment methods control the voltage that the charging roller charges the photosensitive drum by adjusting the DC bias of the charging roller or superimposing the AC component, thereby making the charge distribution on the surface of the photosensitive drum more uniform.

[0070] In one embodiment, generating a fourth control signal based on the uneven pattern may include: selecting a preset voltage adjustment method corresponding to the uneven pattern; generating a fourth control signal based on the preset voltage adjustment method, and the fourth control signal is used to instruct the voltage controller to perform voltage adjustment according to the preset voltage adjustment method to adjust the voltage of the charging roller to charge the photosensitive drum.

[0071] A non-contact electrometer array can measure the charge on the surface of a charged photosensitive drum, thereby determining whether the surface charge distribution is uniform. If the charge distribution on the drum surface is uneven, controlling the voltage controller to adjust the voltage applied by the charging roller to the drum can improve the uniformity of the charge distribution on the drum surface, thereby enhancing print quality.

[0072] In yet another embodiment, Figure 5As shown, the toner cartridge further includes a toner shell 27, a toner hopper 28 formed by the toner shell 27 and the outer shell 21, a first pressure sensor 29, and a first alarm. The first pressure sensor 29 is disposed in the toner hopper and is used to monitor the amount of toner in the toner hopper 28. Both the first pressure sensor 29 and the first alarm are communicatively connected to a detection device. The location of the first alarm can be arbitrary and is not limited in the embodiments of the present application. For example, it can be disposed on the outer wall of the outer shell 21.

[0073] like Figure 6 As shown, the laser printer drum detection method in another embodiment of the present application may include the following S601-S602.

[0074] S601 , monitoring the pressure of toner in the toner bin using a first pressure sensor.

[0075] S602 : When the pressure of the toner is less than the first pressure value threshold, a fifth control signal is sent to the first alarm to control the first alarm to issue a toner shortage alarm.

[0076] The detection device obtains the pressure of the toner in real time, compares the pressure of the toner with a first pressure value threshold, and sends a fifth control signal to the first alarm when the pressure of the toner is less than the first pressure value threshold.

[0077] By configuring a first pressure sensor and a first alarm in the toner cartridge, the toner level in the toner hopper can be monitored in real time. When the toner pressure falls below a first pressure threshold, the toner hopper is deemed low and requires timely replenishment. The first alarm, providing a low-toner warning, prompts the user to replenish toner promptly, avoiding poor print quality and incomplete printing due to low toner.

[0078] In yet another embodiment, Figure 7 As shown, the toner cartridge further includes a waste toner bin 71, a second pressure sensor 72, and a second alarm. The second pressure sensor 72 is disposed in the waste toner bin and is used to monitor the amount of toner in the bin. Both the second pressure sensor 72 and the second alarm are communicatively connected to a detection device. The second alarm can be positioned anywhere and is not limited in the embodiments of the present application. For example, it can be positioned on the outer wall of the housing 21.

[0079] like Figure 8 As shown, the laser printer toner drum detection method in another embodiment of the present application may include the following S801-S802.

[0080] S801: Monitor the pressure of waste toner in the waste toner bin using a second pressure sensor.

[0081] S802: When the pressure of the waste toner is greater than the second pressure value threshold, a sixth control signal is sent to the second alarm to control the second alarm to issue an alarm indicating that the waste toner bin is full.

[0082] The detection device obtains the pressure of the waste powder in real time, compares the pressure of the waste powder with a second pressure value threshold, and sends a sixth control signal to the second alarm when the pressure of the waste powder is greater than the second pressure value threshold.

[0083] By configuring a second pressure sensor and a second alarm in the toner cartridge, the amount of waste toner in the waste toner bin can be monitored in real time. When the pressure of the waste toner exceeds the second pressure threshold, the waste toner bin is considered full and needs to be cleaned promptly. The second alarm can also be used to issue a full waste toner bin warning, prompting the user to clean the waste toner bin promptly, preventing waste toner from sticking to the photosensitive drum due to removal of the waste toner bin, which could lead to poor print quality.

[0084] Based on the same inventive concept, the present application also provides a laser printer drum detection device, as described in the following embodiment. Since the principle of solving the problem in the device embodiment is similar to that in the above method embodiment, the implementation of the device embodiment can refer to the implementation of the above method embodiment, and the repeated parts will not be repeated.

[0085] The device is applied to a detection device. The toner cartridge includes a shell, a photosensitive drum, a rotation controller, a laser scanner and a photodiode array. The rotation controller is used to control the rotation of the photosensitive drum. The laser scanner and the photodiode array are both arranged on the inner wall of the shell. The laser scanner is used to scan the surface of the photosensitive drum with laser light. The photodiode array is used to receive the laser reflected by the photosensitive drum. The rotation controller, the laser scanner and the photodiode array are all communicatively connected to the detection device. The device includes: a sending module, which is used to send a first control signal to the laser scanner to control the laser scanner to scan the surface of the photosensitive drum; the sending module is also used to send a second control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; a receiving module, which is used to receive the laser signal reflected by the surface of the photosensitive drum through the photodiode array to obtain a surface image of the photosensitive drum; an identification module, which is used to compare the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum, wherein the defective areas include scratch areas and / or coating defective areas; and a generation module, which is used to generate a detection report based on the defective areas on the surface of the photosensitive drum, wherein the detection report includes the defective areas on the surface of the photosensitive drum and replacement suggestions.

[0086] In some embodiments, the recognition module is used to preprocess the surface image; calculate the absolute difference between the preprocessed surface image and the standard surface image; and identify the defective area on the surface of the photosensitive drum using a threshold segmentation method based on the absolute difference.

[0087] In some embodiments, the toner drum also includes a charging roller, a voltage controller and a non-contact electrometer array. The voltage controller is used to control the voltage of the charging roller to charge the photosensitive drum. The non-contact electrometer array is arranged on the inner wall of the shell and is communicated with the detection equipment to detect the amount of charge on the surface of the photosensitive drum after charging. The non-contact electrometer array covers the photosensitive drum in the length direction. The sending module is also used to send a third control signal to the rotation controller after the charging roller charges the photosensitive drum, so as to control the rotation of the photosensitive drum through the rotation controller; the receiving module is also used to detect the amount of charge on the surface of the photosensitive drum through the non-contact electrometer array; the device also includes: a construction module, which is used to construct a charge distribution map of the photosensitive drum surface according to the amount of charge on the photosensitive drum surface; the sending module is also used to send a fourth control signal to the voltage controller to adjust the voltage of the charging roller to charge the photosensitive drum when the charge distribution map indicates that the charge distribution on the photosensitive drum surface is uneven.

[0088] In some embodiments, the toner cartridge also includes a toner shell, a toner hopper formed by the toner shell and the outer shell, a first pressure sensor and a first alarm. The first pressure sensor is arranged in the toner hopper to monitor the amount of toner in the toner hopper; the first pressure sensor and the first alarm are both communicatively connected to the detection device; the receiving module is also used to monitor the pressure of the toner in the toner hopper according to the first pressure sensor; the sending module is also used to send a fifth control signal to the first alarm when the pressure of the toner is less than the first pressure value threshold, so as to control the first alarm to issue an alarm for insufficient toner.

[0089] In some embodiments, the toner cartridge also includes a waste powder bin, a second pressure sensor and a second alarm. The second pressure sensor is arranged in the waste powder bin to monitor the amount of waste powder in the waste powder bin; the second pressure sensor and the second alarm are both communicatively connected to the detection device; the receiving module is also used to monitor the pressure of the waste powder in the waste powder bin according to the second pressure sensor; the sending module is also used to send a sixth control signal to the second alarm when the pressure of the waste powder is greater than the second pressure value threshold, so as to control the second alarm to issue an alarm that the waste powder bin is full.

[0090] Those skilled in the art will appreciate that various aspects of the present application can be implemented as systems, methods, or program products. Therefore, various aspects of the present application can be specifically implemented in the following forms: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or an implementation that combines hardware and software aspects, which may be collectively referred to herein as a "circuit," "module," or "system."

[0091] Refer to the following Figure 9 hereinafter, an electronic device 900 according to this embodiment of the present application is described. Figure 9 The electronic device 900 shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0092] like Figure 9 As shown, electronic device 900 is implemented as a general-purpose computing device. Components of electronic device 900 may include, but are not limited to, at least one processing unit 910, at least one storage unit 920, and a bus 930 connecting various system components (including storage unit 920 and processing unit 910).

[0093] The storage unit stores program code, which can be executed by the processing unit 910, so that the processing unit 910 performs the steps of various exemplary embodiments of the present application described in the "Exemplary Method" section above. For example, the processing unit 910 can perform the following steps of the above method embodiment: S10-S105, S401-S404, S601-S602, and S801-S802.

[0094] The storage unit 920 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 9201 and / or a cache memory unit 9202 , and may further include a read-only memory unit (ROM) 9203 .

[0095] The storage unit 920 may also include a program / utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0096] Bus 930 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0097] The electronic device 900 can also communicate with one or more external devices 940 (e.g., a keyboard, a pointing device, a Bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 900, and / or any device that enables the electronic device 900 to communicate with one or more other computing devices (e.g., a router, a modem, etc.). Such communication can occur via an input / output (I / O) interface 950. Furthermore, the electronic device 900 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 960. As shown, the network adapter 960 communicates with other modules of the electronic device 900 via a bus 930. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 900, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0098] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present application.

[0099] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart may be implemented as a computer program product, which includes: a computer program, which implements the above-mentioned laser printer drum detection method when executed by a processor.

[0100] In an exemplary embodiment of the present application, a computer-readable storage medium is further provided, which may be a readable signal medium or a readable storage medium. The computer-readable storage medium stores a program product capable of implementing the above-mentioned method of the present application.

[0101] In some possible implementations, various aspects of the present application may also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps of various exemplary implementations of the present application described in the above "Exemplary Method" section of this specification.

[0102] More specific examples of computer-readable storage media in the present application may include, but are not limited to, an electrical connection having one or more conductors, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0103] In this application, a computer-readable storage medium may include a data signal transmitted in baseband or as part of a carrier wave, which carries readable program code. Such a transmitted data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0104] Alternatively, the program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination thereof.

[0105] In a specific implementation, the program code for performing the operations of the present application can be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., and conventional procedural programming languages such as "C" or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (for example, using an Internet service provider to connect via the Internet).

[0106] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiment of the application, the features and functions of two or more modules or units described above can be concretized in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0107] Furthermore, although the steps of the method of the present application are described in a particular order in the accompanying drawings, this does not require or imply that the steps must be performed in this particular order, or that all steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0108] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

[0109] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A laser printer toner cartridge detection method, characterized in that: Applied to a detection device, the toner cartridge includes a housing, a photosensitive drum, a rotation controller, a laser scanner, and a photodiode array. The rotation controller is used to control the rotation of the photosensitive drum. The laser scanner and the photodiode array are both arranged on the inner wall of the housing. The laser scanner is used to scan the surface of the photosensitive drum with a laser. The photodiode array is used to receive the laser reflected by the photosensitive drum. The rotation controller, the laser scanner, and the photodiode array are all communicatively connected to the detection device. The method includes: sending a first control signal to the laser scanner to control the laser scanner to scan the surface of the photosensitive drum; sending a second control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; The laser signal reflected from the surface of the photosensitive drum is received by the photodiode array to obtain a surface image of the photosensitive drum; Comparing the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum, wherein the defective areas include scratch areas and / or coating defective areas; A detection report is generated according to the defective area on the surface of the photosensitive drum, wherein the detection report includes the defective area on the surface of the photosensitive drum and a replacement suggestion.

2. The laser printer toner cartridge detection method according to claim 1, wherein: The step of comparing the surface image with a pre-stored standard surface image to identify defective areas on the surface of the photosensitive drum includes: Preprocessing the surface image; Calculating the absolute difference between the preprocessed surface image and the standard surface image; According to the absolute difference, a threshold segmentation method is used to identify the defective area on the surface of the photosensitive drum.

3. The laser printer toner cartridge detection method according to claim 1, wherein: The toner cartridge further includes a charging roller, a voltage controller, and a non-contact electrometer array. The voltage controller is used to control the voltage with which the charging roller charges the photosensitive drum. The non-contact electrometer array is disposed on an inner wall of the housing and is in communication with the detection device, and is used to detect the amount of charge on the surface of the photosensitive drum after charging. The non-contact electrometer array covers the photosensitive drum in a length direction. The method further includes: After the charging roller charges the photosensitive drum, sending a third control signal to the rotation controller to control the rotation of the photosensitive drum through the rotation controller; detecting the charge amount on the surface of the photosensitive drum by the non-contact electrometer linear array; constructing a charge distribution map of the surface of the photosensitive drum according to the charge amount on the surface of the photosensitive drum; When the charge distribution diagram indicates that the charge distribution on the surface of the photosensitive drum is uneven, a fourth control signal is sent to the voltage controller to adjust the voltage used by the charging roller to charge the photosensitive drum.

4. The laser printer toner cartridge detection method according to claim 1, wherein: The toner cartridge further includes a toner shell, a toner silo formed by the toner shell and the outer shell, a first pressure sensor, and a first alarm, wherein the first pressure sensor is disposed in the toner silo for monitoring the amount of toner in the toner silo; The first pressure sensor and the first alarm are both in communication with the detection device; the method further includes: monitoring the pressure of the toner in the toner bin using the first pressure sensor; When the pressure of the toner is less than a first pressure value threshold, a fifth control signal is sent to the first alarm to control the first alarm to issue a toner shortage alarm.

5. The laser printer toner cartridge detection method according to claim 1, wherein: The toner cartridge further includes a waste toner bin, a second pressure sensor, and a second alarm. The second pressure sensor is disposed in the waste toner bin and is used to monitor the amount of waste toner in the waste toner bin. The second pressure sensor and the second alarm are both communicatively connected to the detection device. The method further includes: monitoring the pressure of the waste toner in the waste toner bin using the second pressure sensor; When the pressure of the waste toner is greater than a second pressure value threshold, a sixth control signal is sent to the second alarm to control the second alarm to issue an alarm indicating that the waste toner bin is full.

6. A laser printer drum detection device, characterized in that: Applied to a detection device, the toner cartridge includes a housing, a photosensitive drum, a rotation controller, a laser scanner, and a photodiode array. The rotation controller is used to control the rotation of the photosensitive drum. The laser scanner and the photodiode array are both arranged on the inner wall of the housing. The laser scanner is used to scan the surface of the photosensitive drum with a laser. The photodiode array is used to receive the laser reflected by the photosensitive drum. The rotation controller, the laser scanner, and the photodiode array are all communicatively connected to the detection device. The device includes: a sending module, configured to send a first control signal to the laser scanner to control the laser scanner to scan the surface of the photosensitive drum; The sending module is further configured to send a second control signal to the rotation controller, so as to control the rotation of the photosensitive drum through the rotation controller; a receiving module, configured to receive the laser signal reflected from the surface of the photosensitive drum through the photodiode array to obtain a surface image of the photosensitive drum; an identification module, configured to compare the surface image with a pre-stored standard surface image to identify a defective area on the surface of the photosensitive drum, wherein the defective area includes a scratch area and / or a coating defect area; A generating module is used to generate a detection report according to the defective area on the surface of the photosensitive drum, wherein the detection report includes the defective area on the surface of the photosensitive drum and a replacement suggestion.

7. An electronic device, characterized in that: include: processor; as well as a memory for storing executable instructions of the processor; The processor is configured to execute the laser printer toner drum detection method according to any one of claims 1 to 5 by executing the executable instructions.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the laser printer drum detection method according to any one of claims 1 to 5 is implemented.

9. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for detecting a laser printer drum according to any one of claims 1 to 5 is implemented.

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