Process cartridge and image forming apparatus

Abstract

Embodiments of the present application provide a processing cartridge and an image forming device, and relate to the technical field of imaging. The processing cartridge is detachably installed in a device main body of the image forming device. The device main body comprises a frame, a static electricity elimination device and a shielding cover. The static electricity elimination device is installed on the frame. The shielding cover is arranged on the frame and is movable between a first position for shielding the static electricity elimination device and a second position for exposing the static electricity elimination device. The processing cartridge is detachably installed with or integrally provided with a pushing mechanism. When the processing cartridge is installed in the device main body, the pushing mechanism pushes the shielding cover to move from the first position to the second position, so that the static electricity elimination device is exposed. Therefore, before the processing cartridge is installed, the shielding cover can shield the static electricity elimination device in the first position, so that the static electricity elimination device is prevented from being polluted by dust or other impurities, thereby improving the static electricity elimination performance of the static electricity elimination device and ensuring the definition of the printed image.

Description

Technical Field

[0001] This invention relates to the field of imaging technology, and more particularly to a processing box and an image forming apparatus. Background Technology

[0002] The image forming apparatus includes a detachably mounted processing cartridge for imaging. The processing cartridge comprises a developing cartridge and a drum assembly. The developing cartridge includes a developing roller and a toner ejector blade, while the drum assembly includes a photosensitive drum and a charging roller. During operation, the charging roller charges the surface of the photosensitive drum, causing it to become negatively charged. A laser scanning unit exposes the photosensitive drum, forming an electrostatic latent image. Under the control of the toner ejector blade, toner is evenly distributed onto the surface of the developing roller. An electric field is used to transfer the toner from the developing roller to the photosensitive drum. At this point, the electrostatic latent image on the surface of the photosensitive drum becomes a visible toner image. The electric field is then used to transfer the toner image from the photosensitive drum surface onto paper. After fixing and ejection, the entire image forming process is complete. Before proceeding to the next step in the image forming cycle, any remaining charge on the photosensitive drum is removed.

[0003] In the prior art, an image forming apparatus includes an apparatus body, and a processing box is detachably mounted on the apparatus body. The apparatus body includes a de-energizing lamp, and the processing box includes a light guide column. When removing residual charge from the photosensitive drum, the light guide column directs light emitted from the de-energizing lamp on the apparatus body to the photosensitive drum for de-energizing.

[0004] However, before the processing box is installed, the exposed discharge lamp is easily contaminated by dust or other impurities, which reduces the discharge performance of the lamp and results in the residual charge on the photosensitive drum not being cleaned properly, affecting the clarity of the printed image. Summary of the Invention

[0005] This invention provides a processing box and an image forming apparatus to solve the problem that exposed excitation lamps are easily contaminated by dust or other impurities, which reduces the excitation performance of the lamps, resulting in incomplete cleaning of residual charge on the photosensitive drum and affecting the clarity of the printed image.

[0006] In a first aspect, embodiments of the present invention provide a processing box that is detachably installed within the main body of an image forming apparatus. The main body includes a frame, a current-eliminating device, and a cover. The current-eliminating device is mounted on the frame, and the cover is disposed on the frame. The cover is movable between a first position that covers the current-eliminating device and a second position that exposes the current-eliminating device.

[0007] The processing box is detachably mounted or integrally provided with a pushing mechanism, which is configured to push the cover from the first position to the second position when the processing box is inserted into the device body, so as to expose the power dissipation device.

[0008] In one possible implementation, the push mechanism is a push protrusion extending along the length of the processing box, the push protrusion having a push surface capable of pushing the cover to move.

[0009] In one possible implementation, the pushing surface is a first plane that is inclined; or the pushing surface is a first arc surface.

[0010] In one possible implementation, the cover includes a movable body having a mating surface that engages with the push surface, wherein the push surface presses against the mating surface during the insertion of the processing cassette into the device body to move the movable body.

[0011] In one possible implementation, the mating surface is a second plane that is inclined; or the pushing surface is a first arc surface.

[0012] In one possible implementation, the moving body has a clearance groove that mates with the pushing mechanism, and the mating surface is disposed in the clearance groove; the frame includes a mounting plate, and the cover is slidably disposed on the mounting plate. During the process of the processing box being inserted into the device body, the pushing mechanism presses the cover through the clearance groove to make the cover slide relative to the mounting plate.

[0013] In one possible implementation, the mounting plate is provided with a slide that extends along the height direction of the processing box, and the cover is slidable within the slide.

[0014] In one possible implementation, a cleaning element is provided on the side of the shielding cover near the static elimination device, and the cleaning element wipes the static elimination device as the shielding cover moves between the first position and the second position.

[0015] In one possible implementation, the frame is provided with a reset member, which is configured to move the shielding cover from a second position to a first position when the processing box is removed from the device body, so that the shielding cover blocks the power dissipation device.

[0016] In one possible implementation, the system further includes a light guide post and a photosensitive drum, both of which extend along the length of the processing box. The photosensitive drum has a drive end, and the drive end and the pushing mechanism are located on the same side of the processing box along its length. The pushing mechanism is closer to the light guide post than the photosensitive drum.

[0017] In one possible implementation, the frame includes a mounting plate having a through hole, and the light guide post and the static elimination device are located on both sides of the through hole along the length of the processing box.

[0018] Secondly, embodiments of the present invention provide an image forming apparatus, including an apparatus body and a processing box as described above;

[0019] The processing box is detachably installed inside the main body of the device.

[0020] This invention provides a processing box and an image forming apparatus. The processing box is detachably installed within the main body of the image forming apparatus. The main body includes a frame, a current-eliminating device, and a shielding cover. The current-eliminating device is mounted on the frame, and the shielding cover is disposed on the frame. The shielding cover can move between a first position that shields the current-eliminating device and a second position that exposes the current-eliminating device. A pushing mechanism is detachably mounted on or integrally provided on the processing box. The pushing mechanism is configured to push the shielding cover from the first position to the second position when the processing box is inserted into the main body, thereby exposing the current-eliminating device. When the processing box is inserted into the main body, the pushing mechanism pushes the shielding cover from the first position to the second position, exposing the current-eliminating device. Thus, before the processing box is installed, the shielding cover can shield the current-eliminating device in the first position, preventing the current-eliminating device from being contaminated by dust or other impurities, thereby improving the current-eliminating performance of the current-eliminating device and ensuring the clarity of the printed image. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial schematic diagram of the processing box and the pushing mechanism after they have been disassembled from the main body of the device;

[0024] Figure 3 for Figure 2 An enlarged view of point A in the diagram;

[0025] Figure 4 for Figure 1 A partial schematic diagram showing the processing box and the pushing mechanism installed inside the main body of the device;

[0026] Figure 5 for Figure 4 Enlarged diagram of point B in the diagram;

[0027] Figure 6 for Figure 2 A schematic diagram of the mounting plate in the middle;

[0028] Figure 7 for Figure 2 A first-view schematic diagram of the shielding cover and cleaning components in the image;

[0029] Figure 8 for Figure 2 A second-view illustration of the shielding cover and cleaning components in the image;

[0030] Figure 9 for Figure 2 A first-person view illustration of the obstruction cover in the image;

[0031] Figure 10 for Figure 2 A second-view illustration of the obstruction cover.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Processing box; 11-Pushing mechanism; 111-Pushing surface; 1111-First end; 1112-Second end; 12-Light guide post; 13-Photosensitive drum; 131-Drive end; 20-Frame; 21-Mounting plate; 211-Slide rail; 212-Through hole; 213-Fixing protrusion; 30-Electrification device; 41-Shielding cover; 411-Moving main body; 4111-Allowing groove; 4112-Mating surface; 4113-Sliding groove; 4114-Connecting protrusion; 412-Connecting plate; 42-Cleaning component; 50-Reset component. Detailed Implementation

[0034] 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.

[0035] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] In the prior art, an image forming apparatus includes an apparatus body, and a processing box is detachably mounted on the apparatus body. The apparatus body includes a discharge lamp, and the processing box includes a light guide column. When removing residual charge from the photosensitive drum, the light guide column directs light emitted from the discharge lamp on the apparatus body to the photosensitive drum for discharge. However, before the processing box is installed, the exposed discharge lamp is easily contaminated by dust or other impurities, which reduces the discharge performance of the lamp, resulting in incomplete removal of residual charge from the photosensitive drum and affecting the clarity of the printed image.

[0040] To address the aforementioned problems, embodiments of the present invention provide a processing box and an image forming apparatus. The processing box is detachably mounted or integrally provided with a pushing mechanism. When the processing box is inserted into the main body of the apparatus, the pushing mechanism pushes the shielding cover from a first position to a second position, exposing the static elimination device. Thus, before the processing box is installed, the shielding cover can cover the static elimination device in the first position, preventing the static elimination device from being contaminated by dust or other impurities. This improves the static elimination performance of the static elimination device, thereby ensuring that the residual charge on the photosensitive drum is cleaned thoroughly, guaranteeing the clarity of the printed image.

[0041] The processing box and image forming apparatus provided in the embodiments of the present invention will be described in detail below with reference to specific embodiments.

[0042] like Figures 1 to 5 As shown, this embodiment of the invention provides a processing box 10, which is detachably installed inside the main body of an image forming apparatus. The main body includes a frame 20, a current-eliminating device 30, and a cover 41. The current-eliminating device 30 is mounted on the frame 20, and the cover 41 is disposed on the frame 20. The cover 41 can move between a first position that covers the current-eliminating device 30 and a second position that exposes the current-eliminating device 30. A pushing mechanism 11 is detachably mounted on or integrally provided on the processing box 10. The pushing mechanism 11 is configured to push the cover 41 from the first position to the second position when the processing box 10 is inserted into the main body of the apparatus, so as to expose the current-eliminating device 30.

[0043] Among them, such as Figure 1 As shown, the length direction of the processing box 10 is the X-axis direction, the width direction of the processing box 10 is the Y-axis direction, and the height direction of the processing box 10 is the Z-axis direction. The X-axis, Y-axis and Z-axis are perpendicular to each other.

[0044] Figure 2 The image shows a processing box 10, a mounting plate 21, a shielding cover 41, a cleaning component 42, and a reset component 50. (See image for details.) Figure 2 and Figure 3 As shown, the processing box 10 includes a housing, a light guide column 12, a photosensitive drum 13, and a charging roller. The pushing mechanism 11, the light guide column 12, the photosensitive drum 13, and the charging roller are disposed on the housing. The light guide column 12, the photosensitive drum 13, and the charging roller all extend along the length direction of the processing box 10.

[0045] The charging roller is used to charge the surface of the photosensitive drum 13, making the surface of the photosensitive drum 13 charged, which facilitates the adsorption of toner particles in the charged areas of the photosensitive drum 13 surface. The main body of the device includes a laser scanning unit, which is used to expose the photosensitive drum 13, and an electrostatic latent image can be formed on the photosensitive drum 13.

[0046] The frame 20 is generally square in shape. The processing box 10 can be installed inside the frame 20 of the main body of the device along the -X axis direction, and the processing box 10 can be removed from the frame 20 along the +X axis direction.

[0047] The static discharge device 30 is a device that can remove residual charge from the photosensitive drum 13, such as a static discharge lamp. Figure 4 and Figure 5 As shown, when the residual charge on the photosensitive drum 13 is removed, the light emitted by the power elimination device 30 is guided to the surface of the photosensitive drum 13 through the light guide column 12 to eliminate the residual charge on the photosensitive drum 13.

[0048] The cover 41 can shield the static elimination device 30 before the processing box 10 is inserted into the main body of the device, that is, when the cover 41 is in the first position, thereby keeping the static elimination device 30 clean. Specifically, the cover 41 can shield the processing box 10 from dust or other impurities in the space occupied by the processing box 10 in the main body of the device.

[0049] Figure 2 The position where the shield 41 is located is the first position. Figure 4 The location of the cover 41 in the middle is the second position. For example... Figure 2 As shown, when the shielding cover 41 is in the first position, the power-extinguishing device 30 is blocked by the shielding cover 41. The light from the power-extinguishing device 30 cannot pass through the shielding cover 41, and the light from the power-extinguishing device 30 cannot illuminate the position of the light guide column 12 in the main body of the device. It can be understood that there is no light at the position of the light guide column 12 in the main body of the device. At this time, the power-extinguishing device 30 is in a blocked state. Figure 4 As shown, when the shielding cover is in the second position, the power suppression device 30 is not blocked by the shielding cover 41, and the light from the power suppression device 30 can shine on the guide beam 12. At this time, the power suppression device 30 is exposed. It should be noted that when the processing box 10 is installed inside the device body, the shielding cover 41 is in the second position; after the processing box 10 is removed from the device body, the shielding cover 41 is in the first position.

[0050] The pushing mechanism 11 can be integrally formed with the processing box 10. Alternatively, the pushing mechanism 11 can be detachably mounted on the processing box 10. Specifically, the pushing mechanism 11 can be mounted on the processing box 10 by bolts, by adhesive, or by other means.

[0051] like Figures 2 to 5As shown, when the processing box 10 is inserted into the main body of the device, the pushing mechanism 11 pushes the shielding cover 41 from the first position to the second position. After that, the light emitted by the power elimination device 30 is guided to the surface of the photosensitive drum 13 through the light guide column 12 to eliminate the residual charge on the photosensitive drum 13.

[0052] The processing box 10 provided in this embodiment of the invention is detachably or integrally provided with a pushing mechanism 11. When the processing box 10 is installed into the main body of the device, the pushing mechanism 11 pushes the shielding cover 41 from the first position to the second position, which can expose the static elimination device 30. Thus, before the processing box 10 is installed, the shielding cover 41 can shield the static elimination device 30 in the first position to prevent the static elimination device 30 from being contaminated by dust or other impurities, thereby improving the static elimination performance of the static elimination device 30 and ensuring the clarity of the printed image.

[0053] In one possible implementation, such as Figure 2 and Figure 3 As shown, the pushing mechanism 11 is a pushing protrusion extending along the length direction of the processing box 10, and the pushing protrusion has a pushing surface 111.

[0054] Among them, such as Figure 9 and Figure 10 As shown, the cover 41 includes a movable body 411, which has a mating surface 4112 that mates with the pushing surface 111. During the process of loading the processing box 10 into the main body of the device, the pushing surface 111 presses the mating surface 4112 to push the movable body 411 to move.

[0055] The extension direction of the pushing surface 111 is perpendicular to the width direction of the processing box 10, the extension direction of the pushing surface 111 intersects the length direction of the processing box 10, and the extension direction of the pushing surface 111 intersects the height direction of the processing box 10.

[0056] like Figure 3 As shown, the pushing surface 111 has a first end 1111 and a second end 1112. In the height direction of the processing box 10, the first end 1111 is located below the second end 1112.

[0057] The extension direction of the mating surface 4112 is perpendicular to the width direction of the processing box 10, the extension direction of the mating surface 4112 intersects the length direction of the processing box 10, and the extension direction of the mating surface 4112 intersects the height direction of the processing box 10.

[0058] Furthermore, such as Figure 9 and Figure 10 As shown, the moving body 411 has a relief groove 4111 that mates with the pushing protrusion, and a mating surface 4112 is disposed in the relief groove 4111; as Figure 6As shown, the frame 20 includes a mounting plate 21, and a cover 41 is slidably disposed on the mounting plate 21. During the process of loading the processing box 10 into the main body of the device, the pushing mechanism 11 squeezes the cover 41 through the clearance groove 4111 so that the cover 41 slides relative to the mounting plate 21.

[0059] Among them, such as Figure 6 As shown, the mounting plate 21 is provided with a slide 211, which extends along the height direction of the processing box 10, and the cover 41 can slide in the slide 211.

[0060] The moving body 411 can be rectangular. The clearance groove 4111 extends through the moving body 411 along the length of the processing box 10.

[0061] like Figure 4 and Figure 5 As shown, during the process of loading the processing box 10 into the main body of the device, the pushing mechanism 11 extends into the clearance groove 4111 and presses the shielding cover 41 through the clearance groove 4111, causing the shielding cover 41 to slide along the slide 211, thereby allowing the shielding cover 41 to move from the first position to the second position, thus exposing the static elimination device 30. Specifically, as Figure 1 , Figure 4 and Figure 5 As shown, during the process of inserting the processing box 10 into the device body, the processing box 10 is pushed in along the length direction of the processing box 10, and the pushing protrusion extends into the relief groove 4111. Then, the processing box 10 continues to be pushed into the device body, and the pushing surface 111 fits against the mating surface 4112. Then, the processing box 10 continues to be pushed into the device body, and the pushing surface 111 presses against the mating surface 4112. The pushing protrusion applies force to the cover 41, which can slide the cover 41 downward in the height direction of the processing box 10. Then, the processing box 10 continues to be pushed into the device body, which can realize the cover 41 moving from the first position to the second position.

[0062] In one possible implementation, the pushing surface 111 is a first plane that is inclined; or, the pushing surface 111 is a first arc surface.

[0063] Wherein, the mating surface 4112 is an inclined second plane; or, the mating surface 4112 is a second arc surface.

[0064] The extension direction of the first plane can be parallel to the extension direction of the second plane. The extension direction of the first arc surface can be parallel to the extension direction of the second arc surface.

[0065] In one optional embodiment, the pushing surface 111 is a first plane, and the mating surface 4112 is a second plane. During the process of inserting the processing box 10 into the device body, the processing box 10 is pushed in along the length direction of the processing box 10, and the pushing protrusion extends into the relief groove 4111. Then, the processing box 10 continues to be pushed into the device body, and the first plane and the second plane fit together. Then, the processing box 10 continues to be pushed into the device body, and the first plane presses against the second plane. The pushing protrusion applies a force to the cover 41, which can slide downward in the height direction of the processing box 10. Then, the processing box 10 continues to be pushed into the device body, which can realize the movement of the cover 41 from the first position to the second position.

[0066] In another optional embodiment, the pushing surface 111 is a first arc surface, and the mating surface 4112 is a second arc surface. During the process of inserting the processing box 10 into the device body, the processing box 10 is pushed in along the length direction of the processing box 10, and the pushing protrusion extends into the relief groove 4111. Then, the processing box 10 continues to be pushed into the device body, and the first arc surface and the second arc surface fit together. Then, the processing box 10 continues to be pushed into the device body, and the first arc surface presses against the second arc surface. The pushing protrusion applies a force to the cover 41, which can slide downward in the height direction of the processing box 10. Then, the processing box 10 continues to be pushed into the device body, which can realize the movement of the cover 41 from the first position to the second position.

[0067] In one possible implementation, such as Figure 1 and Figure 2 As shown, a cleaning element 42 is provided on the side of the cover 41 near the power elimination device 30. When the cover 41 moves between the first position and the second position, the cleaning element 42 wipes the power elimination device 30, thereby keeping the power elimination device 30 clean and thus cleaning up the residual charge on the photosensitive drum 13.

[0068] When the processing box 10 is inserted into the main body of the device, the pushing mechanism 11 pushes the shielding cover 41 from the first position to the second position. The shielding cover 41 can drive the cleaning component 42, so that the cleaning component 42 can wipe the static elimination device 30.

[0069] During the process of removing the treatment box 10 from the main body of the device, the cover 41 moves from the second position to the first position. The cover 41 can drive the cleaning component 42, so that the cleaning component 42 can wipe the static elimination device 30.

[0070] In one possible implementation, such as Figure 2 and Figure 3As shown, the processing box 10 also includes a light guide post 12 and a photosensitive drum 13. Both the light guide post 12 and the photosensitive drum 13 extend along the length direction of the processing box 10. The photosensitive drum 13 has a drive end 131. The drive end 131 and the push mechanism 11 are located on the same side of the processing box 10 along the length direction of the processing box 10. The push mechanism 11 is closer to the light guide post 12 than the photosensitive drum 13.

[0071] Among them, such as Figure 5 and Figure 6 As shown, the frame 20 includes a mounting plate 21, which has a through hole 212. The light guide post 12 and the power extinguishing device 30 are located on both sides of the through hole 212 along the length of the processing box.

[0072] The through hole 212 can be square. In other implementations, the through hole 212 can also be other shapes, such as circular.

[0073] The driving end 131 is the end of the photosensitive drum 13 that can receive the driving force of the main body of the device.

[0074] like Figure 9 and Figure 10 As shown, the shielding cover 41 also includes a connecting plate 412, which is fixedly connected to the moving body 411. The connecting plate 412 is connected to a cleaning component 42, which can wipe the power-dissipating device 30.

[0075] The connecting plate 412 is located on the side of the mounting plate 21 facing the static elimination device 30, and the connecting plate 412 can block the through hole 212. Specifically, when the shielding cover 41 is in the first position, the connecting plate 412 blocks the through hole 212, that is, the connecting plate 412 covers the through hole 212. It can be understood that in the length direction of the processing box 10, the projection of the through hole 212 is located within the projection area of ​​the connecting plate 412. At this time, dust or other impurities in the space where the processing box 10 is located in the device body can be prevented from contaminating the static elimination device 30 through the through hole 212. That is, dust or other impurities in the space where the processing box 10 is located in the device body can be blocked.

[0076] The shape of the connecting plate 412 can be square or round; no specific setting is given here.

[0077] In one possible implementation, the cleaning element 42 can be either felt or a sponge; no specific choice is made here. In some examples, such as Figure 7 and Figure 8 As shown, the cleaning component 42 is made of felt, and the felt is square in shape. The connecting plate 412 is also square in shape, and the felt is bonded to the connecting plate 412.

[0078] In one possible implementation, such as Figures 2 to 5As shown, a reset member 50 is provided on the frame 20. The reset member 50 is configured to move the shielding cover 41 from the second position to the first position when the processing box 10 is removed from the device body, so that the shielding cover 41 shields the power elimination device 30.

[0079] Among them, the reset component 50 is a component that can be compressed after being subjected to external force and can return to its initial state after the external force disappears. Figure 2 and Figure 3 The reset element 50 is in the initial state. Figure 4 and Figure 5 The reset component 50 is in a compressed state.

[0080] like Figure 2 and Figure 3 As shown, after the processing box 10 is removed from the main body of the device, the pushing mechanism 11 disengages from the shielding cover 41. Under the action of the reset member 50, the shielding cover 41 moves from the second position to the first position. At this time, the shielding cover 41 can shield the power elimination device 30.

[0081] In one possible implementation, such as Figure 5 , Figure 9 and Figure 10 As shown, the reset component 50 is a reset spring. The moving body 411 has two sliding grooves 4113 and a connecting protrusion 4114. The two sliding grooves 4113 are located on both sides of the moving body 411 in the width direction of the processing box 10, and the connecting protrusion 4114 is located on one side of the moving body 411 in the height direction of the processing box 10. The reset spring is located in the slide 211. One end of the reset spring is connected to the connecting protrusion 4114, and the other end of the reset spring is connected to the mounting plate 21.

[0082] The mounting plate 21 is slidably connected to the two sliding grooves 4113 of the moving body 411. Specifically, the portions of the mounting plate 21 located on both sides of the slide rail 211 in the width direction of the processing box 10 are slidably connected to the two sliding grooves 4113 respectively.

[0083] The sliding groove 4113 passes through the moving body 411 in the height direction of the processing box 10.

[0084] The connecting protrusion 4114 can be square or other shapes. The connecting protrusion 4114 engages with the return spring.

[0085] like Figure 6 As shown, the mounting plate 21 has a fixing protrusion 213, and a return spring is connected to the fixing protrusion 213. The fixing protrusion 213 can be square in shape.

[0086] like Figure 4 and Figure 5As shown, during the process of inserting the processing box 10 into the device body, the processing box 10 is pushed in along the length direction of the processing box 10, and the pushing protrusion extends into the relief groove 4111. Then, the processing box 10 continues to be pushed into the device body, and the pushing surface 111 fits against the mating surface 4112. Then, the processing box 10 continues to be pushed into the device body, and the pushing surface 111 presses against the mating surface 4112. The pushing protrusion applies force to the cover 41, which can slide downward in the height direction of the processing box 10. The cover 41 compresses the return spring. Then, the processing box 10 continues to be pushed into the device body, which can realize the movement of the cover 41 from the first position to the second position.

[0087] like Figure 2 and Figure 3 As shown, during the process of disassembling the processing box 10 from the main body of the device, the processing box 10 is pulled out along its length, forcing the protrusion to disengage from the cover 41. Then, under the compression force of the return spring, the cover 41 slides upwards. Afterwards, the return spring returns to its initial state, thus moving the cover 41 from the second position to the first position. It should be noted that when the cover 41 is in the first position, the return spring is in its initial state.

[0088] This invention provides an image forming apparatus, including an apparatus body and a processing box; the processing box is detachably installed inside the apparatus body.

[0089] The processing box in this embodiment has the same structure as the processing box provided in any of the above embodiments, and can bring the same or similar technical effects. It will not be described in detail here, but can be referred to the description of the above embodiments.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing box, detachably mounted within the main body of an image forming apparatus, characterized in that, The main body of the device includes a frame, an electric shock device, and a shielding cover. The electric shock device is mounted on the frame, and the shielding cover is disposed on the frame. The shielding cover can move between a first position that covers the electric shock device and a second position that exposes the electric shock device. The processing box is detachably mounted or integrally provided with a pushing mechanism, which is configured to push the cover from the first position to the second position when the processing box is inserted into the device body, so as to expose the power dissipation device. It also includes a light guide column and a photosensitive drum, both of which extend along the length of the processing box. The photosensitive drum has a drive end, and the drive end and the pushing mechanism are located on the same side of the processing box along its length. The pushing mechanism is closer to the light guide column than the photosensitive drum.

2. The processing box according to claim 1, characterized in that, The pushing mechanism is a pushing protrusion extending along the length of the processing box, and the pushing protrusion has a pushing surface that can push the cover to move.

3. The processing box according to claim 2, characterized in that, The pushing surface is a first plane that is inclined; or the pushing surface is a first arc surface.

4. The processing box according to claim 2 or 3, characterized in that, The shielding cover includes a movable body having a mating surface that engages with the pushing surface. During the process of the processing box being inserted into the device body, the pushing surface presses against the mating surface to push the movable body to move.

5. The processing box according to claim 4, characterized in that, The mating surface is a second plane that is inclined; or the pushing surface is a first arc surface.

6. The processing box according to claim 4, characterized in that, The moving body has a clearance groove that cooperates with the pushing mechanism, and the mating surface is disposed in the clearance groove; the frame includes a mounting plate, and the cover is slidably disposed on the mounting plate. During the process of the processing box being inserted into the device body, the pushing mechanism squeezes the cover through the clearance groove so that the cover slides relative to the mounting plate.

7. The processing box according to claim 6, characterized in that, The mounting plate is provided with a slide rail that extends along the height direction of the processing box, and the cover can slide in the slide rail.

8. The processing box according to any one of claims 1 to 3, characterized in that, A cleaning component is provided on the side of the shielding cover near the static elimination device. As the shielding cover moves between the first position and the second position, the cleaning component wipes the static elimination device.

9. The processing box according to claim 1, characterized in that, The frame is provided with a reset member, which is configured to move the shielding cover from the second position to the first position when the processing box is removed from the main body of the device, so that the shielding cover blocks the power dissipation device.

10. The processing box according to claim 9, characterized in that, The frame includes a mounting plate with a through hole, and the light guide post and the static elimination device are located on both sides of the through hole along the length of the processing box.

11. An image forming apparatus, characterized in that, Includes the device body and the processing box as described in any one of claims 1-10; The processing box is detachably installed inside the main body of the device.

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