Drum box and processing box

Abstract

The utility model discloses a drum box and a processing box. The drum box can be installed in an electrophotographic imaging device provided with an electric contact. The developing box is detachably mounted in the drum box, the developing box comprises a box body and a developing roller, one end of the box body is provided with a storage medium for storing information, and the storage medium is provided with an electric contact surface; the drum box comprises a drum frame and a photosensitive drum; the drum frame is provided with an opening and a protection component, the opening is formed in the position corresponding to the storage medium, and the protection component is located outside the opening; by arranging the protection component, the electric contact surface is not easy to wear and pollute, so that the electric connection between the storage medium and the electric contact of the electrophotographic imaging equipment can be ensured.

Description

Technical Field

[0001] The utility model belongs to the field of electronic photographic imaging, and in particular relates to a drum box and a processing box used for electronic photographic imaging equipment. Background Art

[0002] An electronic photographic imaging device is a device that uses the principle of electronic photography to form an image on a recording medium through processes such as charging, exposure, development, transfer, de-electrification, cleaning, and fixing. In an electronic photographic imaging device, a processing box is a commonly used consumable, which generally includes a drum box and a developer box. There is a processing box, and its developer box is detachably mounted on the drum box. A storage medium is arranged adjacent to one end of the developer box, and the storage medium has an electrical contact surface to contact with the electrical contacts of the electronic photographic imaging device and form an electrical connection, thereby performing signal reception and transmission between the electronic photographic imaging device and the processing box. An opening is arranged on the drum box at a position corresponding to the electrical contact surface, so that when the developer box is installed on the drum box, the electrical contact surface can be exposed from the opening.

[0003] Because the electrical contact surface of the processing box of this structure is exposed outside the drum box before being installed in the electronic photographic imaging device, it is easy to wear and may cause poor contact with the electrical contacts of the electronic photographic imaging device, thereby affecting the accuracy of information recognition. Summary of the invention

[0004] In view of the problems existing in the prior art, the main purpose of the utility model is to provide a drum box which can protect the electrical contact surface.

[0005] In order to achieve the above-mentioned main purpose, the utility model provides a drum box, which can be installed in an electronic photographic imaging device provided with electrical contacts; the developing box can be detachably installed in the drum box, the developing box includes a box body and a developing roller, a storage medium for storing information is provided at one end of the box body, and the storage medium is provided with an electrical contact surface; it is characterized in that the drum box includes a drum frame and a photosensitive drum; the drum frame is provided with an opening and a protective member, the opening is provided at a position corresponding to the storage medium, and the protective member is located on the outside of the opening.

[0006] It can be seen from the above scheme that by providing a protective component, the electrical contact surface is not easily worn and contaminated, thereby ensuring the electrical connection between the storage medium and the electrical contacts of the electronic photographic imaging device to ensure the accuracy of information recognition.

[0007] According to a specific embodiment of the present utility model, when the developing box is installed on the drum box, the protective member covers the opening.

[0008] According to a specific embodiment of the present utility model, the protection component can move between a covering position and an open position. In the covering position, the protection component shields the electrical contact surface; in the open position, the electrical contact surface is exposed from the opening.

[0009] According to a specific embodiment of the utility model, a biasing device is provided on the developing box, and the biasing device applies a biasing force to the protective member so that the protective member is in the covering position.

[0010] According to a specific implementation of the utility model, a biasing device is provided on the drum box, and the biasing device applies a biasing force to the protective member so that the protective member is in the covering position.

[0011] According to a specific implementation of the utility model, the biasing device is an elastic member with elastic restoring force.

[0012] According to a specific implementation of the present utility model, the protection component can translate, rotate or swing between the covering position and the opening position.

[0013] According to a specific embodiment of the utility model, the electronic photographic imaging device is provided with an electric contact bracket with the electric contacts, and during the process of installing the drum box to the electronic photographic imaging device, the electric contact bracket abuts against the protective member to make the protective member move from the covering position to the opening position.

[0014] Another object of the present invention is to provide a drum box that can protect the electrical contact surface; in order to achieve the above-mentioned other object, the present invention provides a drum box, including a photosensitive drum, a drum frame and a storage medium provided with an electrical contact surface, the drum frame is provided with a protective member, and the protective member can move between a covering position and an open position. In the covering position, the protective member blocks the electrical contact surface; in the open position, the electrical contact surface is exposed.

[0015] Another object of the present invention is to provide a processing box that can protect the electrical contact surface; in order to achieve the above-mentioned another object, the present invention provides a processing box, the processing box includes a developing box and a drum box as described above, and the developing box is detachably installed in the drum box.

[0016] In order to more clearly illustrate the above-mentioned objectives, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of a processing box embodiment 1 of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a developing cartridge in Embodiment 1 of a processing cartridge of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the drum cartridge in the first embodiment of the process cartridge of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the drum box in the first embodiment of the process box of the utility model from another angle;

[0021] Figure 5 yes Figure 4 A partial enlarged schematic diagram, wherein the protective member is located in a covering position;

[0022] Figure 6 is with Figure 5 a corresponding partial enlarged schematic diagram, wherein the protection member is in the open position;

[0023] Figure 7 It is a structural schematic diagram of a second embodiment of a processing box of the utility model;

[0024] Figure 8 It is a partial structural schematic diagram of the drum cartridge in the second embodiment of the process cartridge of the utility model, wherein the protective member is located in the covering position;

[0025] Fig. 9 It is a partial structural schematic diagram of the drum cartridge in the second embodiment of the process cartridge of the utility model, wherein the protective member is in the open position

[0026] Fig.10 It is a schematic structural diagram of the third embodiment of the process cartridge of the utility model, wherein the protection member is located in the covering position;

[0027] Fig.11 It is a schematic structural diagram of the processing box embodiment 3 of the utility model, wherein the protective component is located in the open position. DETAILED DESCRIPTION

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but it is easy for those skilled in the art to understand that the present invention can also be implemented in other ways different from those described herein. Therefore, other possible implementation methods that can be known by those skilled in the art based on the embodiments described in this application all belong to the protection scope of this application.

[0029] Example 1

[0030] like Figure 1As shown, the process cartridge 100 includes a developing cartridge 120 and a drum cartridge 110, and the developing cartridge 120 is detachably mounted on the drum cartridge 110. The structures of the developing cartridge and the drum cartridge are respectively shown in FIG. Figure 2 and Figure 3 .like Figure 2 As shown, the developing box 120 includes a box body 121, and a storage medium 122 for storing information is disposed at one end of the box body 121. The storage medium 122 is provided with an electrical contact surface 1221 for contacting with the electrical contacts of the electronic photographic imaging device. Figure 3 As shown, the drum box 110 includes a drum frame 111, on which an opening is provided at a position corresponding to the storage medium 122 of the developer box 120, and a protective member 112 is provided outside the opening. When the developer box 120 is installed on the drum box 110, the protective member 112 covers the opening, thereby shielding the storage medium 122 and its electrical contact surface 1221 to protect them. In addition, it can be understood that the developer box can also include any one or more of the structures such as a developer roller, a stirring frame, a powder bin for accommodating toner, and a transmission mechanism, and the drum box can also include any one or more of the structures such as a photosensitive drum, a transfer roller, a cleaning structure, and a transmission mechanism. These structures are all commonly used structures in the prior art and are not described in detail here.

[0031] The following reference Figure 4 , Figure 5 and Figure 6 Describe the specific structure of the protection component, Figure 4 and Figure 5 The middle protection member is in the covering position, Figure 6 The middle protection member is in the open position. Figure 4 , Figure 5 and Figure 6 As shown, the protective member 112 is plate-shaped and is disposed at one end of the drum frame 111, corresponding to the position of the storage medium 122 of the developing cartridge 120, and the biasing device 113 applies a biasing force to the protective member 112 so that the protective member 112 is located at the covering position. The drum frame 111 is also provided with a support seat 114 for supporting and guiding the movement of the protective member 112. The support seat 114 is located on both sides of the protective member 112 and has a guide groove 1141. The guide groove 1141 accommodates the protrusions 1121 on the left and right sides of the protective member 112, so that the protective member 112 can move smoothly along the guide groove 1141. In other embodiments, the protective member 112 may not need to be provided with protrusions, and the two sides of the protective member 112 are directly located in the guide groove 1141. The biasing device 113 shown in the figure is a torsion spring, which is arranged on the drum frame 111 through a fixed column 115, and includes a pressure end 1131 and a fixed end 1132. The pressure end 1131 is also provided with a hook-shaped portion 1133 abutting against the rear end of the protective component 112, and the fixed end 1132 abuts against the fixed seat 116 to prevent the fixed end 1132 from being displaced.

[0032] When the process cartridge 100 is installed in the electrophotographic imaging device, the electric contact holder 10 with electric contacts on the electrophotographic imaging device abuts against the front end of the protective member 112, and pushes the protective member 112 to move along the guide groove 1141 to the open position to overcome the biasing force of the biasing device 113. When the process cartridge is installed in place, the electric contacts contact and form an electrical connection with the electric contact surface 1221 of the storage medium 122. When the process cartridge 100 is taken out of the electrophotographic imaging device, the protective member 112 moves from the open position to the covering position under the biasing force of the biasing device 113, thereby protecting the storage medium 122 and its electric contact surface 1221.

[0033] It is understood that the front, back, left, and right directions of the protection member in this embodiment are for the sake of clarity of description, and do not refer to the front, back, left, and right directions of the protection member in the actual position, that is, the description of the direction here has nothing to do with its actual position. It is understood that the biasing device in this embodiment can be replaced by other structures, as long as the biasing force can be applied to make the protection member in the covering position, and the protection member can overcome the biasing force of the biasing device and move to the open position under the action of external force.

[0034] Example 2

[0035] The structure of the process cartridge in this embodiment may be similar to that in Embodiment 1 except that the movement of the protection member is different.

[0036] like Figure 7 As shown, the process cartridge 200 includes a developing cartridge 220 and a drum cartridge 210, and the developing cartridge 220 is detachably mounted on the drum cartridge 210. A storage medium for storing information is disposed at one end of the developing cartridge 220, and an electrical contact surface is disposed on the storage medium for contacting with an electrical contact of an electrophotographic imaging device. An opening is disposed on the drum cartridge 210 at a position corresponding to the storage medium of the developing cartridge, and a protective member 212 is disposed outside the opening. When the developing cartridge 220 is mounted on the drum cartridge 210, the protective member 212 covers the opening, thereby shielding the storage medium and its electrical contact surface to protect them.

[0037] The following reference Figure 8 and Fig. 9 Describe the specific structure of the protection component, Figure 8 The middle protection member is in the covering position, Fig. 9 The middle protection member is in the open position for clarity. Figure 8 and Fig. 9 Only a portion of the structure of the drum cartridge 210 is shown. Figure 8 and Fig. 9As shown, the protective member 212 is arc-shaped and is arranged at one end of the drum frame, corresponding to the position of the storage medium of the developing box 22. The biasing device 213 applies a biasing force to the pressure-receiving portion 2121 of the protective member 212 so that the protective member 212 is located in the covering position. The drum frame is also provided with a support seat 214 for supporting and guiding the movement of the protective member 212. The left side of the support seat 214 has a guide groove, and the right side of the support seat 214 has a guide surface and a guide groove. The left side of the protective member 212 or the protrusion on the left side is located in the guide groove, and the pressure-receiving portion 2121 slides along the guide surface. The rear end of the right side can gradually enter the guide groove, so that the protective member 212 can rotate smoothly. The biasing device 213 shown in the figure is a torsion spring, which is arranged on the drum frame through a fixing column 215, and includes a pressure end 2131 and a fixing end 2132. The fixing end 2132 is clamped on the fixing seat 216 so that the fixing end 2132 cannot be displaced.

[0038] When the process cartridge 200 is installed in the electrophotographic imaging device, the electrical contact holder 10 with the electrical contact contacts abuts against the front end of the protective member 212, and pushes the protective member 212 to move along the guide groove to the open position to overcome the biasing force of the biasing device 213. When the process cartridge 200 is installed in place, the electrical contact contacts the electrical contact surface of the storage medium and forms an electrical connection. When the process cartridge 200 is taken out of the electrophotographic imaging device, the protective member 212 moves from the open position to the covering position under the biasing force of the biasing device 213, thereby protecting the storage medium and its electrical contact surface.

[0039] It is understood that the front, back, left, and right directions of the protection member in this embodiment are for the sake of clarity of description, and do not refer to the front, back, left, and right directions of the protection member in the actual position, that is, the description of the direction here has nothing to do with its actual position. It is understood that the biasing device in this embodiment can be replaced by other structures, as long as the biasing force can be applied to make the protection member in the covering position, and the protection member can overcome the biasing force of the biasing device and move to the open position under the action of external force.

[0040] Example 3

[0041] The structure of the process cartridge in this embodiment may be similar to that in Embodiment 1 and Embodiment 2 except that the structure of the protection member is different.

[0042] like Fig.10 and Fig.11As shown, the process cartridge 300 includes a developing cartridge and a drum cartridge, and the developing cartridge is detachably mounted on the drum cartridge. A storage medium for storing information is disposed at one end of the developing cartridge, and an electrical contact surface is disposed on the storage medium for contacting with an electrical contact of an electronic photographic imaging device. An opening is disposed on the drum cartridge at a position corresponding to the storage medium of the developing cartridge, and a protective member 312 is disposed outside the opening. When the developing cartridge is mounted on the drum cartridge, the protective member 312 covers the opening, thereby shielding the storage medium and its electrical contact surface to protect them.

[0043] The protective member 312 is trapezoidal, and is swingably arranged at one end of the drum frame by means of a fixing ring 3122 sleeved on a fixing column 315. Corresponding to the position of the storage medium of the developing cartridge, the biasing device 313 applies a biasing force to the pressure receiving portion 3121 of the protective member 312 so as to place the protective member 312 in the covering position. The biasing device 313 shown in the figure is a spring sheet, and the fixing seat 316 abuts against the fixing end 3132 of the spring sheet, and the pressing end 3131 abuts against the pressure receiving portion 3121.

[0044] When the process cartridge 300 is installed in the electrophotographic imaging device, the electrical contact holder 10 with the electrical contact abuts against the front end slope of the protective member 312, and pushes the protective member 312 to swing to the open position to overcome the biasing force of the biasing device 313. When the process cartridge 300 is installed in place, the electrical contact contacts the electrical contact surface of the storage medium and forms an electrical connection. When the process cartridge 300 is taken out of the electrophotographic imaging device, the protective member 312 moves from the open position to the covering position under the biasing force of the biasing device 313, thereby protecting the storage medium and its electrical contact surface.

[0045] It is understood that the front, back, left, and right directions of the protection member in this embodiment are for the sake of clarity of description, and do not refer to the front, back, left, and right directions of the protection member in the actual position, that is, the description of the direction here has nothing to do with its actual position. It is understood that the biasing device in this embodiment can be replaced by other structures, as long as the biasing force can be applied to make the protection member in the covering position, and the protection member can overcome the biasing force of the biasing device and move to the open position under the action of external force.

[0046] The processing box in the above processing box embodiment is a split box in which the developer box and the drum box are detachably connected together. In other embodiments, the processing box can also be an integral box in which the developer frame and the drum frame are fixedly connected and cannot be separated. The storage medium can be set at any position on the top surface, bottom surface or end surface of the processing box. A protective member that can move between a covering position and an open position is arranged outside the storage medium. Preferably, when the processing box is installed in the electronic photographic imaging device, the protective member can be abutted by the structure inside the electronic photographic imaging device to move the protective member from the covering position to the open position, so that the electrical contact surface of the storage medium is electrically connected to the electrical contacts of the electronic photographic imaging device.

[0047] Example 4

[0048] The drum box in this embodiment may be similar to the drum box in the above-mentioned processing box embodiment, and has a protective component, which protects the storage medium and the electrical contact surface of the developing box to be installed thereon, and can move between a covering position and an open position, playing a protective role in the covering position, and realizing electrical connection between the electrical contact surface and the electrical contacts of the electronic photographic imaging device in the open position.

[0049] In other embodiments, a storage medium may also be provided on the drum cartridge, and a protective member movable between a covering position and an open position is provided outside the storage medium. Preferably, when the drum cartridge is installed in an electronic photographic imaging device, the protective member may be abutted by a structure within the electronic photographic imaging device to move the protective member from the covering position to the open position, so that the electrical contact surface of the storage medium is electrically connected to the electrical contacts of the electronic photographic imaging device.

[0050] Example 5

[0051] The developing box in this embodiment may be a developing box of a known structure, wherein a storage medium is arranged at any position of the top surface, bottom surface or end surface thereof, and a protective member movable between a covering position and an open position is arranged outside the storage medium. Preferably, when the developing box is installed in an electronic photographic imaging device, the protective member may be abutted by a structure inside the electronic photographic imaging device to move the protective member from the covering position to the open position, so that the electrical contact surface of the storage medium is electrically connected to the electrical contacts of the electronic photographic imaging device.

[0052] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some improvements without departing from the scope of the present invention, that is, any changes or improvements made according to the present invention should be covered by the protection scope of the present invention.

Claims

1. A drum cartridge, which can be installed in an electronic photographic imaging device provided with electrical contacts; a developing cartridge can be detachably installed in the drum cartridge, the developing cartridge comprises a cartridge body and a developing roller, a storage medium for storing information is provided at one end of the cartridge body, and the storage medium is provided with an electrical contact surface; characterized in that: The drum cartridge includes a drum frame and a photosensitive drum; the drum frame is provided with an opening and a protective member, the opening is provided at a position corresponding to the storage medium, and the protective member is located outside the opening.

2. The drum cartridge according to claim 1, characterized in that The protection member covers the opening when the developing cartridge is mounted to the drum cartridge.

3. The drum cartridge according to claim 2, characterized in that The protective member is movable between a covering position in which the protective member obscures the electrical contact surface and an open position in which the electrical contact surface is exposed from the opening.

4. The drum cartridge according to claim 3, characterized in that The developing cartridge is provided with a biasing device that applies a biasing force to the protection member so that the protection member is in the covering position.

5. The drum cartridge according to claim 3, characterized in that: The drum cartridge is provided with a biasing device that applies a biasing force to the protective member so that the protective member is in the covering position.

6. The drum cartridge according to claim 5, characterized in that: The biasing device is an elastic member with elastic restoring force.

7. The drum cartridge according to any one of claims 3 to 6, characterized in that: The protective member can translate, rotate or swing between the covering position and the opening position.

8. The drum cartridge according to claim 7, characterized in that The electrophotographic image forming apparatus is provided with an electrical contact holder having the electrical contacts, and during the process of mounting the drum cartridge to the electrophotographic image forming apparatus, the electrical contact holder abuts against the protective member to move the protective member from the covering position to the opening position.

9. A drum cartridge comprising a photosensitive drum, a drum frame and a storage medium provided with an electrical contact surface, characterized in that: The drum frame is provided with a protective member movable between a covering position and an open position, in which the protective member shields the electrical contact surface; In the open position, the electrical contact surface is exposed.

10. A process cartridge, characterized in that The process cartridge comprises a developing cartridge and the drum cartridge according to any one of claims 1 to 9, wherein the developing cartridge is detachably mounted in the drum cartridge.

Images