Photosensitive drum anti-exposure capability test equipment

Abstract

The utility model discloses equipment for testing the anti-exposure capability of a photosensitive drum, and belongs to the technical field of photosensitive drum testing. The testing equipment comprises a box body, a detachable clamp which is arranged in the box body and is used for fixing a photosensitive drum, and a motor which is fixedly arranged on one side in the box body, is connected with the detachable clamp and is used for driving the photosensitive drum to rotate, the charging assembly is arranged on one side of the detachable clamp and used for charging the surface of the photosensitive drum, the detection assembly is used for detecting the surface voltage of the photosensitive drum, the multi-light-source assembly is arranged in the box body, and the conductive clamp is arranged on one side, away from the motor, of the detachable clamp and grounded and used for simulating the grounding and electricity elimination process of the photosensitive drum. According to the photosensitive drum anti-exposure capability testing equipment, by arranging the multi-light-source assembly composed of the LED lamp set and the incandescent lamp, exposure environments under different illumination conditions can be simulated, the anti-exposure capability of the photosensitive drum can be comprehensively tested, and the performance of the photosensitive drum can be better evaluated.

Description

Technical Field

[0001] This application relates to the technical field of photoreceptor drum testing, and specifically to a testing device for the anti-exposure ability of a photoreceptor drum. Background Art

[0002] The photoreceptor drum, as a core component of electrophotographic imaging devices such as laser printers, its performance directly affects the printing quality and the overall efficiency of the device. Currently, the electrical performance testing of photoreceptor drums on the market mainly relies on an electrical performance tester. This instrument evaluates the photoelectric conversion characteristics of the photoreceptor drum by measuring the fully exposed residual potential and photosensitivity of the photoreceptor drum, and analyzes the density performance of the photoreceptor drum during the printing process based on this.

[0003] However, existing electrical performance testers mostly use light sources with fixed wavelengths of 650nm or 780nm for testing. This single electrical performance test ignores the exposure light environment encountered by the photoreceptor drum during actual installation and use. Relying solely on electrical performance testing to characterize the anti-exposure ability of the photoreceptor drum is difficult to comprehensively and accurately characterize the anti-exposure ability of the photoreceptor drum.

[0004] Therefore, this application provides a testing device for the anti-exposure ability of a photoreceptor drum to solve the above problems. Utility Model Content

[0005] This application provides a testing device for the anti-exposure ability of a photoreceptor drum, aiming to solve the problems in the background art that existing electrical performance testers use fixed-wavelength light sources for testing, ignore the actual light environment, and it is difficult to comprehensively and accurately characterize the anti-exposure ability of the photoreceptor drum only by electrical performance testing.

[0006] To achieve the above object, this application provides the following technical solution: A testing device for the anti-exposure ability of a photoreceptor drum, including a box body, a detachable fixture disposed in the box body for fixing the photoreceptor drum, a motor fixedly disposed on one side inside the box body and connected to the detachable fixture for driving the photoreceptor drum to rotate, a charging component disposed on one side of the detachable fixture for charging the surface of the photoreceptor drum, a detection component for detecting the surface voltage of the photoreceptor drum, a multi-light source component disposed in the box body, and a conductive clip disposed on the side of the detachable fixture away from the motor and grounded for simulating the grounding and discharging process of the photoreceptor drum.

[0007] The multi-light source component includes LED lamp groups respectively fixedly disposed in the box body and located on both sides of the detachable fixture for providing specific wavelengths to the photoreceptor drum and incandescent lamps for providing adjustable light sources to the photoreceptor drum.

[0008] A lid is hinged at the top opening of the box body. By integrating components such as a detachable fixture, a motor, a charging component, a detection component, a multi-light source component, and a conductive clip, the anti-exposure ability of the photosensitive drum can be intuitively reflected by data. At the same time, by setting a multi-light source component composed of an LED light group and an incandescent lamp, the exposure environment under different lighting conditions can be simulated to comprehensively test the anti-exposure ability of the photosensitive drum, which helps to better evaluate the performance of the photosensitive drum. The design of the detachable fixture enables the device to flexibly adapt to the test requirements of photosensitive drums of different models and specifications.

[0009] Preferably, in order to meet the fixed test requirements for photosensitive drums of different diameters, the detachable fixture includes two fixed seats arranged between the motor and the conductive clip, a rotating shaft rotatably connected to the fixed seats, a threaded rod fixedly arranged at one end of the two rotating shafts close to each other, and a connector screwed on the threaded rod for connecting the photosensitive drum. The output shaft of the motor and the conductive clip are respectively fixedly connected to one end of the two rotating shafts away from the threaded rod; through the threaded rod and the screwed connector, the connector has a detachable function. Therefore, during the test, the connector suitable for the diameter of the photosensitive drum can be replaced according to the size of the photosensitive drum diameter, improving the flexibility of the device.

[0010] Preferably, in order to facilitate the charging of the photosensitive drum, the charging component includes a tungsten wire arranged on one side of the two connectors and in contact with the photosensitive drum, and a high-voltage power supply arranged outside the box body and electrically connected to the tungsten wire; the tungsten wire serves as a conductive medium and can efficiently transmit the electric energy provided by the high-voltage power supply to the photosensitive drum to ensure the efficient progress of the photosensitive drum charging process.

[0011] Preferably, in order to facilitate the detection of the voltage of the photosensitive drum, the detection component includes a voltage probe arranged on one side of the tungsten wire and in contact with the photosensitive drum, and a voltmeter arranged outside the box body and electrically connected to the voltage probe; the voltage probe is directly in contact with the photosensitive drum and can directly and accurately detect the voltage on the surface of the photosensitive drum. The voltmeter can display the voltage value detected by the voltage probe in real time, providing immediate feedback to the operator.

[0012] Preferably, in order to further improve the flexibility of the device, the test device further includes a sliding component arranged in the box body for adjusting the distance between the two connectors and the positions of the tungsten wire and the voltage probe; the design of the sliding component enables the distance between the connectors and the positions of the tungsten wire and the voltage probe to be adjusted according to the length of different photosensitive drums, so as to be applicable to the detection of photosensitive drums of different lengths, greatly improving the adaptability and flexibility of the device.

[0013] Preferably, it is convenient to adjust the distance between the connectors and the positions of the tungsten wire and the voltage probe. The sliding assembly includes a guide rail fixedly arranged in the box body and located on the side of the tungsten wire and the voltage probe away from the photosensitive drum, a first sliding seat and a second sliding seat that move horizontally on the guide rail, and locking bolts respectively screwed on the first sliding seat and the second sliding seat and abutted against the guide rail. The first sliding seat is fixedly connected to the tungsten wire and the voltage probe, and the second sliding seat is fixedly connected to a fixed seat located on one side of the conductive clip. The first sliding seat and the second sliding seat can move horizontally on the guide rail. This design enables the distance between the connectors and the positions of the tungsten wire and the voltage probe to be flexibly adjusted according to the length of the photosensitive drum without replacing or adjusting other complex components. At the same time, the design of the locking bolts can lock the positions of the first sliding seat and the second sliding seat after the adjustment is completed, preventing position deviation caused by vibration or external force during the test, thus ensuring the stability and accuracy of the test.

[0014] This photosensitive drum anti-exposure ability test device can intuitively reflect the anti-exposure ability of the photosensitive drum through data by integrating components such as detachable fixtures, motors, charging components, detection components, multi-light source components, and conductive clips. At the same time, by setting a multi-light source component composed of an LED lamp group and an incandescent lamp, it can simulate the exposure environment under different lighting conditions and comprehensively test the anti-exposure ability of the photosensitive drum, which helps to better evaluate the performance of the photosensitive drum.

[0015] This photosensitive drum anti-exposure ability test device can flexibly adapt to the test requirements of photosensitive drums of different models and specifications by setting detachable fixtures and sliding components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a photosensitive drum anti-exposure ability test device;

[0017] Figure 2 It is a schematic structural diagram of the box body of a photosensitive drum anti-exposure ability test device when the box cover is not installed; Figure 1 ;

[0018] Figure 3 It is a schematic structural diagram of the box body of a photosensitive drum anti-exposure ability test device when the box cover is not installed; Figure 2 ;

[0019] Figure 4 It is a schematic assembly structural diagram of a fixed seat, a rotating shaft, a threaded rod, and a connector in a detachable fixture of a photosensitive drum anti-exposure ability test device.

[0020] In the figure:

[0021] 1. Box body; 11. Box cover;

[0022] 2. Detachable fixture; 21. Fixed seat; 22. Rotating shaft; 23. Threaded rod; 24. Connector;

[0023] 3. Motor;

[0024] 4. Charging component; 41. Tungsten metal wire; 42. High-voltage power supply;

[0025] 5. Detection component; 51. Voltage probe; 52. Voltmeter;

[0026] 6. Multi-light source component; 61. LED lamp group; 62. Incandescent lamp;

[0027] 7. Conductive clamp;

[0028] 8. Sliding component; 81. Guide rail; 82. First sliding seat; 83. Second sliding seat; 84. Locking bolt. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0030] Embodiment 1

[0031] This embodiment provides a test device for the anti-exposure ability of a photosensitive drum. As Figures 1 - 4 shown, the test device includes a box body 1, a detachable fixture 2 disposed in the box body 1 for fixing the photosensitive drum, a motor 3 fixedly disposed on one side inside the box body 1 and connected to the detachable fixture 2 for driving the photosensitive drum to rotate, a charging component 4 disposed on one side of the detachable fixture 2 for charging the surface of the photosensitive drum, a detection component 5 for detecting the surface voltage of the photosensitive drum, a multi-light source component 6 disposed in the box body 1, and a conductive clamp 7 disposed on the side of the detachable fixture 2 away from the motor 3 and grounded for simulating the grounding and discharging process of the photosensitive drum; the multi-light source component 6 includes an LED lamp group 61 fixedly disposed in the box body 1 and located on both sides of the detachable fixture 2 for providing a specific wavelength for the photosensitive drum and an incandescent lamp 62 for providing an adjustable light source for the photosensitive drum; a box cover 11 is hinged at the top opening of the box body 1.

[0032] It should be added that the motor 3 is electrically connected to an external power supply.

[0033] In use, first, do not use the incandescent lamp 62 for exposure. Test the residual voltage of the photosensitive drum under normal conditions. During the test, first fix the photosensitive drum to be tested on the detachable fixture 2, connect the conductive clip 7, then close the lid 11 of the box. Next, start the motor 3 to drive the photosensitive drum to be tested fixed on the detachable fixture 2 to rotate at a constant speed. At the same time, turn on the charging component 4 and the detection component 5 to charge the photosensitive drum and detect the voltage. When the voltage detected by the detection component 5 is within the range of 800 ± 10V, then turn on the LED lamp group 61, and through the voltage value detected in real time by the detection component 5, until the voltage value is stable, and record the stable voltage value. This value is the residual potential without exposure by the incandescent lamp 62. After that, turn off the motor 3, the charging component 4, the detection component 5 and the LED lamp group 61;

[0034] Secondly, use the incandescent lamp 62 for exposure test. During the test, the motor 3 drives the photosensitive drum to be tested fixed on the detachable fixture 2 to rotate at a constant speed, and close the lid 11 of the box. At the same time, start the incandescent lamp 62 for exposure for 3 - 5 minutes. After 3 - 5 minutes of exposure, turn on the charging component 4 and the detection component 5 to charge the photosensitive drum and detect the voltage. When the voltage detected by the detection component 5 is within the range of 800 ± 10V, then turn on the LED lamp group 61, and through the voltage value detected in real time by the detection component 5, until the voltage value is stable, and record the stable voltage value. This value is the residual potential after exposure by the incandescent lamp 62. After that, turn off the motor 3, the charging component 4, the detection component 5, the LED lamp group 61 and the incandescent lamp 62. Finally, calculate the difference between the residual potential without exposure by the incandescent lamp 62 and the residual potential after exposure by the incandescent lamp 62. The smaller the difference, the stronger the anti-exposure ability of the photosensitive drum.

[0035] Specifically, the detachable fixture 2 includes two fixed seats 21 arranged between the motor 3 and the conductive clip 7, a rotating shaft 22 rotatably connected to the fixed seats 21, a threaded rod 23 fixedly arranged at one end of the two rotating shafts 22 close to each other, and a connector 24 screwed on the threaded rod 23 for connecting the photosensitive drum. The output shaft of the motor 3 and the conductive clip 7 are respectively fixedly connected to one end of the two rotating shafts 22 away from the threaded rod 23;

[0036] When it is necessary to test the photosensitive drum, first select the connector 24 adapted to it according to the inner diameter size of the photosensitive drum to be tested, then screw the adapted connector 24 onto the corresponding threaded rod 23. Next, place both ends of the photosensitive drum to be tested on the two connectors 24 respectively, and through the abutment of the connectors 24, the photosensitive drum to be tested can be fixed on the detachable fixture 2. After that, when starting the motor 3, since the motor 3 is fixedly connected to one of the rotating shafts 22, and the rotating shaft 22 is connected to the connector 24 through the threaded rod 23, therefore, through the abutment of the two connectors 24, the photosensitive drum to be tested can rotate with the rotation of the rotating shaft 22.

[0037] Further, the charging component 4 includes a tungsten wire 41 made of metal that is disposed on one side of the two connectors 24 and in contact with the photosensitive drum, and a high-voltage power supply 42 that is disposed outside the box body 1 and electrically connected to the tungsten wire 41;

[0038] After the photosensitive drum to be tested is fixed on the detachable fixture 2 and the box cover 11 is closed for testing, the switch of the high-voltage power supply 42 is turned on to make the power supply start working. At this time, the high-voltage power supply 42 will provide a high voltage to the tungsten wire 41 to make it charged. Then, the tungsten wire 41 can directly charge the surface of the photosensitive drum to be tested.

[0039] Furthermore, the detection component 5 includes a voltage probe 51 that is disposed on one side of the tungsten wire 41 and in contact with the photosensitive drum, and a voltmeter 52 that is disposed outside the box body 1 and electrically connected to the voltage probe 51;

[0040] When using the charging component 4 to charge the surface of the photosensitive drum to be tested, through the detection of the voltage probe 51, it is possible to detect the voltage on the surface of the photosensitive drum to be tested and feed the data back to the voltmeter 52 in real time.

[0041] Embodiment 2

[0042] Different from Embodiment 1, in order to further improve the flexibility of the use of the device, the testing device further includes a sliding component 8 disposed in the box body 1 for adjusting the distance between the two connectors 24, the positions of the tungsten wire 41 and the voltage probe 51. The sliding component 8 includes a guide rail 81 fixedly disposed in the box body 1 and on the side of the tungsten wire 41 and the voltage probe 51 away from the photosensitive drum, a first sliding seat 82 and a second sliding seat 83 that move horizontally on the guide rail 81, and locking bolts 84 respectively screwed on the first sliding seat 82 and the second sliding seat 83 and abutted against the guide rail 81. The first sliding seat 82 is fixedly connected to the tungsten wire 41 and the voltage probe 51, and the second sliding seat 83 is fixedly connected to the fixed seat 21 on the side of the conductive clip 7;

[0043] After selecting the corresponding connector 24 according to the inner diameter of the photosensitive drum to be measured, the locking bolt 84 on the second sliding seat 83 can be loosened according to the length of the photosensitive drum to be measured, and the second sliding seat 83 can be horizontally moved on the guide rail 81. Since the second sliding seat 83 is fixedly connected to the fixed seat 21 on one side of the conductive clip 7, when the second sliding seat 83 is horizontally moved, the fixed seat 21 on one side of the conductive clip 7 can be moved closer to or farther away from the other fixed seat 21, so as to adjust the distance between the two connectors 24, and then fix the photosensitive drums to be measured with different lengths. After adjusting the position of the second sliding seat 83, the locking bolt 84 thereon can be tightened to fix its position. At the same time, the locking bolt 84 on the first sliding seat 82 is loosened, and the first sliding seat 82 is moved according to the length of the photosensitive drum to be measured. Since the tungsten wire 41 and the voltage probe 51 are fixed on the first sliding seat 82, when the first sliding seat 82 is moved, the positions of the tungsten wire 41 and the voltage probe 51 will also move accordingly. Thus, the contact positions of the tungsten wire 41 and the voltage probe 51 with the photosensitive drum to be measured can be adjusted according to the length of the photosensitive drum to be measured to ensure that the positions of charging and voltage detection are centered.

[0044] As described above, only the preferred specific embodiments of the present application are provided, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and concept of the present application, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present application.

Claims

1. A photosensitive drum anti-exposure ability testing device, characterized in that: It includes a box body (1), a detachable fixture (2) arranged inside the box body (1) for fixing a photosensitive drum, a motor (3) fixedly arranged on one side inside the box body (1) and connected to the detachable fixture (2) for driving the photosensitive drum to rotate, a charging component (4) arranged on one side of the detachable fixture (2) for charging the surface of the photosensitive drum, a detection component (5) for detecting the surface voltage of the photosensitive drum, a multi-light source component (6) arranged inside the box body (1), and a conductive clip (7) arranged on the side of the detachable fixture (2) away from the motor (3) and grounded for simulating the grounding and discharging process of the photosensitive drum; The multi-light source component (6) includes an LED lamp group (61) fixedly arranged inside the box body (1) and located on both sides of the detachable fixture (2) for providing a specific wavelength for the photosensitive drum and an incandescent lamp (62) for providing an adjustable light source for the photosensitive drum; A box cover (11) is hinged at the top opening of the box body (1).

2. The photosensitive drum anti-exposure ability testing device according to claim 1, wherein: The detachable fixture (2) includes two fixed seats (21) arranged between the motor (3) and the conductive clip (7), a rotating shaft (22) rotatably connected to the fixed seats (21), a threaded rod (23) fixedly arranged at one end of the two rotating shafts (22) close to each other, and a connector (24) screwed on the threaded rod (23) for connecting the photosensitive drum. The output shaft of the motor (3) and the conductive clip (7) are respectively fixedly connected to one end of the two rotating shafts (22) away from the threaded rod (23).

3. The photosensitive drum anti-exposure ability testing device according to claim 2, wherein: The charging component (4) includes a metal tungsten wire (41) arranged on one side of the two connectors (24) and in contact with the photosensitive drum, and a high-voltage power supply (42) arranged outside the box body (1) and electrically connected to the metal tungsten wire (41).

4. The photosensitive drum anti-exposure ability testing device according to claim 3, characterized in that: The detection component (5) includes a voltage probe (51) arranged on one side of the metal tungsten wire (41) and in contact with the photosensitive drum, and a voltmeter (52) arranged outside the box body (1) and electrically connected to the voltage probe (51).

5. The photosensitive drum anti-exposure ability testing device according to claim 4, characterized in that: The test equipment further includes a sliding component (8) arranged inside the box body (1) for adjusting the distance between the two connectors (24), the positions of the metal tungsten wire (41) and the voltage probe (51).

6. The photosensitive drum anti-exposure ability testing device according to claim 5, wherein: The sliding component (8) includes a guide rail (81) fixedly arranged inside the box body (1) and located on the side of the metal tungsten wire (41) and the voltage probe (51) away from the photosensitive drum, a first sliding seat (82) and a second sliding seat (83) moving horizontally on the guide rail (81), and locking bolts (84) respectively screwed on the first sliding seat (82) and the second sliding seat (83) and pressing against the guide rail (81). The first sliding seat (82) is fixedly connected to the metal tungsten wire (41) and the voltage probe (51), and the second sliding seat (83) is fixedly connected to the fixed seat (21) on the side of the conductive clip (7).

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