Processing box

Abstract

The utility model discloses a processing box which is detachably arranged on a tray unit of electronic imaging equipment, the processing box comprises a frame, a photosensitive drum and a charging roller are rotatably supported on the frame, the axis of the photosensitive drum extends along a first direction, and the first direction is crossed with a second direction; the conductive side end cover is arranged at one end of the frame in the first direction; the first groove is formed in the conductive side end cover and is used for being matched with the electronic imaging equipment to limit the movement of the processing box; and the second electrode comprises an electrode contact for receiving voltage of the electronic imaging equipment, the electrode contact is exposed outside the conductive side end cover, the second electrode further comprises an extension part electrically connected with the electrode contact, and the extension part is electrically connected to the charging roller. According to the scheme, the degree of freedom of arrangement of the second electrode is higher, the position of the second electrode can be flexibly selected as required, more functional parts can be further arranged on the conductive side end cover, the integration level of the processing box is higher, and miniaturization of the processing box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic imaging equipment, in particular to a processing box. Background Art

[0002] In recent years, electronic imaging devices of color electronic photography type have been widely used, and user needs have become diversified. Among them, the size reduction is expected because the number of cases where the electronic imaging device is set on a table and used is increasing. As the size of the device body is reduced, the space for installing the processing box is also reduced, but the functions of the electronic imaging device are increasing, and the matching functional components on the processing box will also increase, which is not conducive to the miniaturization of the processing box. Therefore, a solution is expected to achieve that more functional components can be set on the limited space of a component. Utility Model Content

[0003] According to one aspect of the utility model, a process cartridge is provided, which is detachably mounted on a tray unit of an electronic imaging device, and the tray unit can move along a second direction with the process cartridge between an inner position and an outer position of the electronic imaging device, comprising:

[0004] a frame rotatably supporting a photosensitive drum and a charging roller, wherein the axis of the photosensitive drum extends along a first direction, and the first direction intersects with the second direction;

[0005] A conductive side end cover, disposed at one end of the frame in the first direction;

[0006] A second electrode, comprising an electrode contact for receiving a voltage from an electronic imaging device, the electrode contact being exposed outside the conductive side end cover through a second through hole, the second electrode being electrically connected to the charging roller;

[0007] A first groove is provided on the conductive side end cover and is used to cooperate with the electronic imaging device to limit the movement of the process box;

[0008] The first protrusion is protruding outwardly and is arranged on the outer side surface of the conductive side end cover. The first protrusion abuts against the side wall of the tray unit to limit the movement of the processing box along the first direction.

[0009] According to another aspect of the present invention, another processing box is provided, which is detachably mounted on a tray unit of an electronic imaging device, and the tray unit can move along a second direction between an inner position and an outer position of the electronic imaging device with the processing box, and the processing box includes:

[0010] a frame rotatably supporting a photosensitive drum and a charging roller, wherein the axis of the photosensitive drum extends along a first direction, and the first direction intersects with the second direction;

[0011] A conductive side end cover, disposed at one end of the frame in the first direction;

[0012] A first groove is provided on the conductive side end cover and is used to cooperate with the electronic imaging device to limit the movement of the process box;

[0013] The second electrode includes an electrode contact for receiving a voltage from an electronic imaging device, the electrode contact being exposed outside the conductive side end cover, and an extension portion electrically connected to the electrode contact, the extension portion being electrically connected to the charging roller.

[0014] In some embodiments, the electrode contact is mounted on an outer side surface of the conductive side end cover, and the extension portion has an extension component along a third direction intersecting the first direction and the second direction.

[0015] In some embodiments, a length of the extension portion in the third direction is greater than a length of the first groove in the third direction.

[0016] In some embodiments, the extension portion extends along the outer side surface of the conductive side end cover to the edge of the conductive side end cover, then bends to the inner side of the conductive side end cover, and then extends to the position of the charging roller.

[0017] In some embodiments, a mounting portion is protrudingly provided on an outer side surface of the conductive side end cover, the electrode contact is mounted on the mounting portion, and the mounting portion is located at the rear side of the first groove in the second direction.

[0018] In some embodiments, a second through hole for the extension portion to pass through is provided on the conductive side end cover, and in the second direction, the second through hole and the first groove have no overlapping portion.

[0019] In some embodiments, a mounting portion is protrudingly provided on the outer side surface of the conductive side end cover, the electrode contact is mounted on the mounting portion, and the second through hole is located on the upper side or the lower side of the mounting portion in the third direction.

[0020] In some embodiments, the extension portion extends along the outer side surface of the conductive side end cover to the second through hole, bends through the second through hole, enters the inner side of the conductive side end cover, and then extends to the position of the charging roller.

[0021] In some embodiments, the conductive side end cover is provided with a connection hole, and the conductive side end cover is fixed to the frame after a connector passes through the connection hole;

[0022] The connecting hole is the second through hole, the extending portion extends to the second through hole and contacts and is electrically connected to the connecting member, and a portion of the connecting member is electrically connected to the charging roller.

[0023] In some embodiments, the frame is further provided with a developing roller, a powder discharge knife, and a first electrode, wherein the first electrode is electrically connected to the developing roller and the powder discharge knife;

[0024] The conductive side end cover is provided with a second notch portion for exposing the first electrode.

[0025] In some embodiments, the frame is provided with a driving side end cover at the other end in the first direction;

[0026] The processing box also includes a developing coupling for receiving the driving force of the electronic imaging device to drive the developing roller to rotate;

[0027] The driving side end cover is provided with a first notch portion for exposing the developing coupling;

[0028] The first notch portion extends to the upper end and the rear end of the driving side end cover.

[0029] The beneficial effects of the utility model are as follows: the second electrode of the utility model is electrically connected to the charging roller through the extension part, so that the arrangement freedom of the second electrode is higher, and the position of the second electrode can be flexibly selected as needed, so that more functional components can be arranged on the conductive side end cover, and the processing box has a higher degree of integration, which is conducive to the miniaturization of the processing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the processing box of the first embodiment of the utility model from one angle;

[0031] Figure 2 It is a schematic diagram of the process cartridge of the first embodiment of the utility model observed from the driving side along the axial direction of the developing roller;

[0032] Figure 3 It is a schematic diagram of a partial exploded structure of a processing box according to the first embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the developing protective cover of the processing box of the first embodiment of the utility model;

[0034] Figure 5 It is a schematic structural diagram of the driving side end cover of the processing box of the first embodiment of the utility model;

[0035] Figure 6 It is a schematic diagram of the overall structure of the processing box of the first embodiment of the utility model from another angle;

[0036] Figure 7 It is a schematic structural diagram of a conductive side end cover of a processing box according to the first embodiment of the utility model;

[0037] Figure 8It is a schematic diagram of the process cartridge of the second embodiment of the utility model observed from the conductive side along the axial direction of the developing roller;

[0038] Fig. 9 It is a schematic structural diagram of a conductive side end cover of a processing box according to a second embodiment of the utility model;

[0039] Fig.10 It is a schematic diagram of the process cartridge of the third embodiment of the utility model observed from the conductive side along the axial direction of the developing roller;

[0040] Fig.11 It is a schematic structural diagram of a conductive side end cover of a processing box according to a third embodiment of the utility model;

[0041] Fig.12 It is a schematic structural diagram of another conductive side end cover of the processing box of the third embodiment of the utility model. DETAILED DESCRIPTION

[0042] The utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] The following descriptions of directions are as follows:

[0048] The directions A1 and A2 are the first directions, the direction indicated by A1 is the positive direction of the first direction, and the direction indicated by A2 is the negative direction of the first direction;

[0049] The directions B1 and B2 are the second direction, the direction indicated by B1 is the positive direction of the second direction, and the direction indicated by B2 is the negative direction of the second direction;

[0050] The directions of C1 and C2 are the third direction, the direction pointed by C1 is the positive direction of the third direction, and the direction pointed by C2 is the negative direction of the third direction.

[0051] The first direction, the second direction and the third direction intersect each other.

[0052] Embodiment 1

[0053] The electronic imaging device forms an image on a recording material using, for example, an electronic photographic imaging process. The electronic imaging device includes, for example, an electronic photographic copier, an electronic photographic printer (LED printer, laser printer, etc.), an electronic photographic printer-type fax machine, etc. The processing box is detachably installed in the electronic imaging device, and the processing box includes a photosensitive drum, a developing roller for developing an electrostatic latent image formed on the photosensitive drum, etc. The electronic imaging device includes a tray unit and a drive head, the tray unit is used to support the processing box and can move the processing box along the direction (second direction) intersecting the first direction (A1 and A2 directions) of the processing box between the internal position and the external position of the electronic imaging device, and the drive head is used to transmit the driving force of the electronic imaging device to the processing box to make the processing box work.

[0054] like Figure 1 and Figure 2 As shown, this embodiment provides a processing box, including a developing chamber 100, a photosensitive chamber 200 and a driving assembly, the developing chamber 100 includes a developing frame 110, a developing roller, a powder feeding roller, a stirring frame and a powder discharge knife, and the photosensitive chamber 200 includes a photosensitive frame 210, a photosensitive drum, a charging roller and a cleaning scraper. The processing box is roughly in the shape of a rectangular box, which has a length in the first direction (A1 and A2 directions), a width in the second direction (B1 and B2 directions), and a height in the third direction (C1 and C2 directions); one end of the processing box in the A1 direction is a driving end, and one end in the A2 direction is a conductive end, the developing chamber 100 and the photosensitive chamber 200 are arranged opposite to each other in the second direction, the direction from the developing chamber 100 toward the photosensitive chamber 200 is the B1 direction, one end of the processing box along the B1 direction is the front end, the direction from the photosensitive chamber 200 toward the developing chamber 100 is the B2 direction, one end along the B2 direction is the rear end, one end of the processing box along the C1 direction is the upper end, and one end along the C2 direction is the lower end.

[0055] like Figure 1 and Figure 2 As shown, the developing frame 110 forms a powder bin for storing toner, and the developing frame 110 is roughly in the shape of a long box. The length direction of the developing frame 110 extends along the first direction (directions A1 and A2). The developing frame 110 is provided with a driving side bracket 120 and a conductive side bracket at both ends of the length direction (directions A1 and A2), respectively. The stirring frame, the powder feeding roller and the developing roller are rotatably supported on the driving side bracket 120 and the conductive side bracket at both ends of the length direction of the developing frame 110. The stirring frame, the powder feeding roller and the developing roller can rotate under the action of the driving assembly, and the axial directions of the stirring frame, the powder feeding roller and the developing roller are parallel to the length direction (first direction) of the developing frame 110. The toner in the powder bin is stirred by the stirring frame to prevent the toner in the powder bin from agglomerating, and the toner can also be transported to the direction of the powder feeding roller. The powder feeding roller transports the toner to the developing roller and is adsorbed by the charged developing roller.

[0056] like Figure 1 and Figure 2 As shown, the photosensitive frame 210 forms a waste toner bin for collecting waste toner. The photosensitive frame 210 also has a length direction, which is consistent with the length direction of the developing frame 110 (both along the A1 and A2 directions). The photosensitive frame 210 is provided with end caps at both ends in the first direction, which are a driving side end cap 220 fixedly provided at one end of the photosensitive frame 210 in the A1 direction and a conductive side end cap 230 fixedly provided at one end of the photosensitive frame 210 in the A2 direction. The photosensitive drum is rotatably supported on the driving side end cap 220 and the conductive side end cap 230. Specifically, the photosensitive drum is provided on the lower end side (the C2 direction side) of the photosensitive frame 210 in the height direction. The toner adsorbed by the developing roller transfers the toner to the photosensitive drum through the potential difference between the developing roller and the photosensitive drum. The toner on the photosensitive drum is then transferred by the transfer belt of the electronic imaging device to form an image on the recording material (such as paper). After the transfer, the cleaning blade contacts the photosensitive drum linearly to clean the toner that has not been completely transferred on the surface of the photosensitive drum, that is, the waste toner. The cleaned waste toner is stored in the waste toner bin. The charging roller is used to charge the surface of the photosensitive drum evenly so that the photosensitive drum can absorb the toner.

[0057] like Figures 1 to 3 As shown, the driving assembly includes a photosensitive coupling 310, a developing coupling 320, a developing roller gear 330, a powder feeding roller gear 340 and a stirring frame gear. The driving assembly can be arranged at one end or both ends of the processing box in the first direction (length direction). In this embodiment, the driving assembly is arranged at the same end of the developing bin 100 in the length direction, preferably the driving end (the end in the A1 direction). The photosensitive coupling 310 is arranged at one end of the photosensitive drum in the A1 direction, and is used to mesh with the photosensitive driving head of the electronic imaging device to receive the driving force and drive the photosensitive drum to rotate. The developing coupling 320, the developing roller gear 330, the powder feeding roller gear 340, and the stirring rack gear are arranged on the outer side of the driving side bracket 120. Specifically, the driving side bracket 120 is provided with a supporting hole for supporting the developing coupling 320. The developing coupling 320 is used to mesh with the developing drive head of the electronic imaging device and receive the driving force. The developing coupling 320 is located approximately in the middle of the developing bin 100 in the third direction; the developing roller gear 330 is sleeved on the end of the developing roller shaft extending from the driving side bracket 120, the powder feeding roller gear 340 is sleeved on the end of the powder feeding roller shaft extending from the driving side bracket 120, and the stirring rack gear is sleeved on the end of the stirring rack extending from the driving side bracket 120. The developing roller gear 330, the powder feeding roller gear 340 and the stirring rack gear are directly or indirectly meshed with the developing coupling 320, so that the developing coupling 320 transmits the received driving force, thereby driving the developing roller, the powder feeding roller and the stirring rack to rotate. In the third direction, the developing coupling 320 is located on the upper side (the side in the C1 direction) of the photosensitive coupling 310 .

[0058] like Figures 1 to 3 As shown, a developer cover 130 is further provided on the outside of the driving side bracket 120. The developer cover 130 covers the developer roller gear 330, the powder feeding roller gear 340, the stirring frame gear and a part of the developer coupling 320, and can protect the driving components. Specifically, a cylindrical portion 131 is provided on the developer cover 130, and the cylindrical portion 131 protrudes along a side away from the developer frame 110. The cylindrical portion 131 is hollow inside to form a third through hole 132. The axial direction of the third through hole 132 extends along the first direction, and a part of the developer coupling 320 passes through the third through hole 132 and protrudes out of the developer cover 130.

[0059] Further, such as Figure 3 and Figure 4 As shown, the developer cover 130 is also provided with an annular flange 133, which surrounds the outer periphery of the cylindrical portion 131. There is a gap between the annular flange 133 and the cylindrical portion 131, and the inner diameter of the annular flange 133 can adapt to the size of the developer drive head of the electronic imaging device. When the developer drive head of the electronic imaging device extends axially to engage with the developer coupling 320, a part of the developer drive head extends into the gap between the annular flange 133 and the cylindrical portion 131, and the annular flange 133 covers a part of the developer drive head, which can play a certain supporting and positioning role.

[0060] Further, such as Figure 3 and Figure 4 As shown, a guide surface 134 is provided at one end of the annular flange 133 away from the developing chamber 100. The guide surface 134 is an inclined surface, which can play a guiding role when the developing drive head of the electronic imaging device is engaged with the developing coupling 320, making the engagement of the two smoother and shortening the engagement time.

[0061] like Figures 1 to 3 , Figure 6 As shown, the conductive side end cover 230 is disposed on the outside of the conductive side bracket, and the driving side end cover 220 is disposed on the outside of the developer protective cover 130. When viewed along the length direction of the process cartridge, the driving side end cover 220 and the developer protective cover 130 at least partially overlap. The driving side end cover 220 and the conductive side end cover 230 each cover at least a portion of the end of the photosensitive frame 210 and the developer frame 110, respectively. The driving side end cover 220 and the conductive side end cover 230 are respectively fixedly connected to the two ends of the photosensitive frame 210. Specifically, the conductive side end cover 230 can be fixed to the end of the photosensitive frame 210 through a connecting hole and a connecting member. The connecting hole can be a screw hole opened on the conductive side end cover 230, and the connecting member can be a screw.

[0062] like Figures 1 to 3 , Figure 5As shown, the driving side end cover 220 is provided with a first through hole 221 and a first notch 222. When the driving side end cover 220 is installed at the end of the developing frame 110 and the photosensitive frame 210, a part of the photosensitive coupling 310 is exposed through the first through hole 221, and a part of the developing coupling 320 is exposed through the first notch 222, so that the coupling engages with the driving head of the electronic imaging device to receive the driving force. The first notch 222 extends upward and backward from the position corresponding to the developing coupling 320 to the upper end and the rear end of the driving side end cover 220, that is, a vacant part is dug out on the driving side end cover 220, and most of the developing protective cover 130 is exposed through the first notch 222. Through the first notch 222, the internal structure of the processing box (especially the internal structure of the developing chamber 100) can be observed to a certain extent. In the case of partial maintenance, it can be achieved without removing the driving side end cover 220, and the maintenance is more convenient. After the driving side end cover 220 is installed in place, the annular flange 133 of the developing cover 130 extends out from the first notch portion 222 of the driving side end cover 220 and protrudes from the surface of the driving side end cover 220. The annular flange 133 does not contact the driving side end cover 220, that is, the annular flange 133 is completely located within the range of the first notch portion 222.

[0063] like Figure 6 to Figure 7As shown, the conductive side end cover 230 is provided with a first groove 231, a second groove 237, a second through hole 232 and a second notch 236. Among them, the first groove 231 (also referred to as the control groove) cooperates with the rotation stop protrusion (not shown) on the upper side of the electronic imaging device to limit the rotation of the conductive side of the processing box when receiving the driving force of the electronic imaging device, thereby limiting the movement of the processing box. The first groove 231 is arranged near the front upper side of the conductive side end cover 230 (the side of the B1 and C1 directions). The first groove 231 is a groove extending along the third direction, with an open lower end and a closed upper end. The rotation stop protrusion can enter the first groove 231 from the lower end of the first groove 231 to prevent the processing box from rotating. The second groove 237 is arranged on the rear lower side of the conductive side end cover 230 (the side of the B2 and C2 directions). The second groove 237 cooperates with the boss on the upper side of the tray unit of the electronic imaging device to limit the movement of the conductive side of the processing box in the second direction (the B1 and B2 directions). The second notch 236 is approximately located in the middle of the conductive side end cover 230 in the third direction. In the second direction, the second notch 236 is close to the rear end (the B2 direction end) of the conductive side end cover 230. A portion of the first electrode 140 is exposed through the second notch 236. The first electrode 140 is arranged on the developing frame 110 and is electrically connected to the developing roller and the powder discharge knife, thereby receiving a predetermined voltage from the electronic imaging device and transmitting it to the developing roller and the powder discharge knife respectively. The second through hole 232 is arranged close to the front upper side (the B1 and C1 directions) of the conductive side end cover 230. In the second direction, the second through hole 232 is located on the B2 direction side of the first groove 231, and there is a certain distance between the two. The first groove 231 and the second through hole 232 are located on the same straight line in the second direction, that is, the second through hole 232 and the first groove 231 have an overlapping portion in the second direction. A portion of the second electrode 240 (specifically, the electrode contact) is exposed through the second through hole 232. The second electrode 240 is disposed on the photosensitive frame 210 and is electrically connected to the charging roller. The second electrode 240 receives a predetermined voltage from the electronic imaging device (received through the electrode contact exposed outside the second through hole 232) and transmits it to the charging roller. Both the first electrode 140 and the second electrode 240 may be conductive steel sheets.

[0064] Furthermore, if Figure 6 to Figure 7As shown, the conductive side end cover 230 is also provided with a first protrusion 233 and a third protrusion 234, and both the first protrusion 233 and the third protrusion 234 extend along the first direction (length direction). Specifically, the first protrusion 233 protrudes outward (in the A2 direction) along the plane 235 (the outer side of the conductive side end cover 230), and the first protrusion 233 is located at a position close to the front lower side (the side of the B1 and C2 directions) of the conductive side end cover 230. The first protrusion 233 is generally a round pancake-shaped protrusion, and can also be other geometric shapes. The third protrusion 234 protrudes inward (in the A1 direction) along the plane 235, and the third protrusion 234 is located at the front end of the conductive side end cover 230. The third protrusion 234 is in the shape of a strip, extending from the upper end of the conductive side end cover 230 to a position close to its lower end. The third protrusion 234 is used to abut against the tray unit to adjust the installation posture of the processing box when the processing box is installed at an angle to the tray unit of the electronic imaging device, so as to ensure that the processing box is correctly installed on the tray unit, and after the processing box is correctly installed on the tray unit, the side of the third protrusion 234 facing away from the plane 235 (i.e., the side in the A1 direction) does not contact the tray unit.

[0065] When the coupling (photosensitive coupling 310 and developing coupling 320) at the driving end (the end in the A1 direction) of the processing box is engaged with the driving head of the electronic imaging device to receive the driving force of the electronic imaging device, the driving head of the electronic imaging device will push the processing box to move along the A2 direction on the tray unit of the electronic imaging device. At this time, the first protrusion 233 on the conductive side end cover 230 abuts against the side wall of the tray unit of the electronic imaging device, thereby limiting the movement of the processing box along the A2 direction.

[0066] Furthermore, if Figure 1 , Figure 3 , Figure 5 As shown, the driving side end cover 220 is also provided with a third groove 225, a fourth groove 226 and a second protrusion 227. The third groove 225 is arranged on the upper left side of the driving side end cover 220 (close to the B1 and C1 directions), and the third groove 225 cooperates with the rotation stop protrusion (not shown) on the other side of the electronic imaging device to limit the rotation of the processing box driving side when receiving the driving force of the electronic imaging device; the fourth groove 226 is arranged on the lower right side of the driving side end cover 220 (close to the B2 and C2 directions), and the fourth groove 226 cooperates with the boss on the other side of the tray unit of the electronic imaging device to limit the movement of the processing box driving side in the second direction (B1 and B2 directions); the second protrusion 227 is arranged near the first notch 222 and extends along the A1 direction. When the processing box is pushed on the tray unit of the electronic imaging device to move along the A1 direction, the second protrusion 227 abuts against the other side wall of the tray unit of the electronic imaging device, thereby limiting the movement of the processing box along the A1 direction.

[0067] The first groove 231 on the conductive side end cover 230 and the third groove 225 on the drive side end cover 220 cooperate with the rotation stop protrusion of the electronic imaging device, so that the rotation of the process box is limited. The second groove 237 on the conductive side end cover 230 and the fourth groove 226 on the drive side end cover 220 cooperate with the boss on the tray unit of the electronic imaging device, so that the movement of the process box in the second direction (B1 and B2 directions) is limited. The first protrusion 233 on the conductive side end cover 230 and the second protrusion 227 on the drive side end cover 220 cooperate with the side wall of the tray unit of the electronic imaging device, so that the movement of the process box in the first direction (A1 and A2 directions) is limited. When the tray unit supports the process box and moves the process box to the internal position of the electronic imaging device, the drive side end cover 220 and the conductive side end cover 230 are pressed by the pressing component (not shown) in the electronic imaging device, and the movement of the process box in the third direction (C1 and C2 directions) is limited. Through the above arrangement, the processing box is restricted in the first direction, the second direction, the third direction and the rotational direction, so that the processing box is stably positioned on the tray unit of the electronic imaging device, thereby ensuring the quality of the image formed by the electronic imaging device.

[0068] When the electronic imaging device is working, the developing roller and the photosensitive drum need to be in close contact. When the electronic imaging device is not working, the developing roller and the photosensitive drum need to be separated by a certain distance to avoid long-term contact between the developing roller and the photosensitive drum, which may cause the photosensitive drum to be contaminated by excess developer attached to the developing roller, or the developing roller to be deformed or the photosensitive drum to be worn.

[0069] Based on this, the photosensitive chamber 200 and the developing chamber 100 in this embodiment are configured to be able to move relative to each other, so that the developing roller and the photosensitive drum can be in contact when the electronic imaging device is working and separated when not working. When the process cartridge is installed in the electronic imaging device, the photosensitive chamber 200 (specifically, the drive side end cover 220 and the conductive side end cover 230) is pressed by the pressing component in the electronic imaging device, and the photosensitive chamber 200 is immovable. The developing chamber 100 is configured to be able to move between a first position and a second position relative to the photosensitive chamber 200. When the developing chamber 100 is in the first position, the developing roller is in contact with the photosensitive drum; when the developing chamber 100 is in the second position, the developing roller is separated from the photosensitive drum.

[0070] like Figures 2 to 6 As shown, in this embodiment, the processing box further includes a connecting portion, a limiting portion 224, a limited portion 136, a pushing member 400 and an elastic member 500, which are used to realize the movement of the developing chamber 100 relative to the photosensitive chamber 200 between a first position and a second position; in the first position, the developing roller contacts the photosensitive drum; in the second position, the developing roller is separated from the photosensitive drum. When viewed along the axial direction (first direction) of the developing roller, the connecting portion does not overlap with the developing coupling 320.

[0071] like Figures 3 to 6 As shown, in this embodiment, the connection part includes a support column 135 and a guide part 223. The support column 135 is arranged near one end of the developer protective cover 130 in the third direction, specifically, at a position near the lower end of the developer protective cover 130 on the end surface. The driving side end cover 220 is provided with a guide part 223 matched with the support column 135. The support column 135 moves within the range of the guide part 223. The guide part 223 is located at the lower side of the first notch part 222 in the third direction, and the support column 135 corresponds to the position of the guide part 223 and is also located at the lower side of the first notch part 222. That is, when observed along the axial direction of the developer roller, the connection part is always located at the lower side of the first notch part 222 and has no overlapping part with the first notch part 222. The developer coupling 320 and the annular flange 133, the cylindrical part 131, etc. on the developer protective cover 130 are all within the range of the first notch part 222. Therefore, when observed along the axial direction of the developer roller, the connection part and the developer coupling 320 also have no overlapping part.

[0072] Specifically, Figure 4 and Figure 5 As shown, the support column 135 is a columnar component formed on the end face of the developing cover 130, preferably a cylindrical shape, but may also be other multi-faceted prism structures; the guide portion 223 is a through hole or a through groove formed on the driving side end cover 220, and the through hole or the through groove is an arc-shaped hole or an arc-shaped groove. The guide portion 223 extends approximately along the second direction. During assembly, the support column 135 is embedded in the guide portion 223. The range of the guide portion 223 limits the moving range of the support column 135, that is, limits the swing range of the developing chamber 100 relative to the photosensitive chamber 200.

[0073] In this embodiment, Figures 2 to 5As shown, a limiting portion 224 is provided at a position of the upper edge of the driving side end cover 220 close to the first notch portion 222, that is, the limiting portion 224 is provided at the upper end of the driving side end cover 220 and beside the first notch portion 222, the limiting portion 224 is a protrusion formed on the inner wall of the driving side end cover 220, and the limiting portion 224 extends along the A2 direction; a restricted portion 136 matching with the limiting portion 224 is provided on the developing cover 130, the restricted portion 136 is a protrusion formed on the outer wall of the developing cover 130, and the restricted portion 136 extends along the A1 direction, the limiting portion 224 contacts with the restricted portion 136 when the developing chamber 100 moves from the second position to the first position, and in the second direction, the limiting portion 224 is located at the rear side of the restricted portion 136 (one side along the B2 direction), and the limiting portion 224 contacts with the restricted portion 136 to play a limiting role, thereby preventing the developing chamber 100 from deviating from the first position. When the developing chamber 100 is located at the first position, the lower end of the developing chamber 100 is close to the lower end of the photosensitive chamber 200, so that the developing roller can contact the photosensitive drum, and the support column 135 is located at one end in the B1 direction in the guide portion 223; when the developing chamber 100 is moved from the first position to the second position by the force of the electronic imaging device, the support column 135 moves from one end in the B1 direction to one end in the B2 direction in the guide portion 223, and the lower end of the developing chamber 100 swings in the direction away from the photosensitive chamber 200 (roughly along the B2 direction), driving the developing roller to separate from the photosensitive drum, and at the same time, the upper end of the developing chamber 100 swings in the direction close to the photosensitive chamber 200 (roughly moves along the B1 direction), and the limiting portion 136 moves along the B1 direction and separates from the limiting portion 224.

[0074] like Figure 3 As shown, the movement of the developing chamber 100 from the first position to the second position is achieved by the cooperation of the pushing member 400 and the force applying member (not shown) in the electronic imaging device. Specifically, the developing chamber 100 is provided with a pushing member 400 at one or both ends in the length direction, and the pushing member 400 is rotatably arranged on the end surface of the developing chamber 100. The pushing member 400 is in the shape of a strip arm, one end of which is hinged to the developing chamber 100, and the other end can drive the developing chamber 100 to move from the first position to the second position in the direction away from the photosensitive chamber 200 when receiving the force of the force applying member, so that the developing roller is separated from the photosensitive drum.

[0075] In this embodiment, the forced push member 400 can be hinged at the lower end of the developer protective cover 130, and the forced push member 400 can also be not arranged on the developer protective cover 130. A support shaft is arranged on the end surface of the developer chamber 100, and one end of the forced push member 400 is sleeved on the support shaft, which can also complete the installation of the forced push member 400. A part of the free end of the forced push member 400 is exposed outside the developer frame 110 from below, so that the force applying member can contact it from below and apply force to it.

[0076] like Figure 2As shown, an elastic member 500 is further provided between the photosensitive chamber 200 and the developing chamber 100, and is used to move the developing chamber 100 from the second position to the first position, and drive the developing roller to contact the photosensitive drum. Specifically, one end of the elastic member 500 is connected to the upper end of the photosensitive frame 210, and the other end is connected to the upper end of the developing frame 110. The elastic member 500 is preferably a spring, and may also be a member capable of providing elastic force, such as elastic rubber, elastic sponge, or shrapnel.

[0077] When the electronic imaging device is not working, the force-applying member contacts the pushing member 400 from below and applies force to it, so that the pushing member 400 rotates around its connection end. After the force is applied to the developing chamber 100, its lower end swings in a direction away from the photosensitive chamber 200 (roughly along the B2 direction), driving the developing roller to separate from the photosensitive drum, and the upper end of the developing chamber 100 moves in a direction close to the photosensitive drum (roughly along the B1 direction), compressing the elastic member 500, and the limiting part 136 follows the developing chamber 100 to move in the B1 direction and separate from the limiting part 224. At the same time, the support column 135 moves from one end in the B1 direction to the other end in the B2 direction in the guide part 223, and the connecting part plays a supporting and positioning role in the movement of the developing chamber 100.

[0078] When the electronic imaging device needs to work, the force exerted by the force member on the pushing member 400 is removed, and the pushing member 400 swings back to the original position. At the same time, the elastic member 500 recovers its elastic deformation, pushing the developing chamber 100 from the second position to the first position, and the developing roller contacts the photosensitive drum. At the same time, the support column 135 moves from one end in the B2 direction to one end in the B1 direction in the guide portion 223. The restricted portion 136 swings with the developing chamber 100 to contact the restricting portion 224, so that the developing chamber 100 remains in the first position.

[0079] During the movement of the developing chamber 100 relative to the photosensitive chamber 200, the annular flange 133 on the developing cover 130 never contacts the driving side end cover 220, that is, no matter whether the developing chamber 100 is located in the first position or the second position, the annular flange 133 will not contact the driving side end cover 220.

[0080] Embodiment 2

[0081] The structure of the processing box of this embodiment is basically the same as that of the processing box of the first embodiment, and the difference lies in that the structure of the conductive side end cover 230 is different.

[0082] In this embodiment, Figures 8 to 9 As shown, the conductive side end cover 230 is further provided with a guide groove 238 , but no second through hole 232 is provided.

[0083] Specifically, Figures 8 to 9As shown, a guide groove 238 is provided on the conductive side end cover 230, and the guide groove 238 is used to guide the rotation stop protrusion of the electronic imaging device to enter or disengage from the first groove 231 when the tray unit carries the processing box along the direction (i.e., the second direction) intersecting the first direction (A1 and A2 directions) of the processing box between the internal position and the external position of the electronic imaging device. The extension direction of the guide groove 238 is parallel to the moving direction of the tray unit (i.e., extending along the second direction), so as to avoid the processing box from hitting other components of the electronic imaging device during the installation process and causing interference and jamming.

[0084] Further, the guide groove 238 can be obtained by protruding a portion of the plane 235 outward (in the A2 direction) to be flush with the first protrusion 233, so that the non-protruding portion of the plane 235 forms the guide groove 238, that is, the plane 235 is the groove bottom surface of the guide groove 238, and the protruding portion of the plane 235 forms the plane 235a. When the driving head of the electronic imaging device pushes the processing box to move along the A2 direction on the tray unit of the electronic imaging device, the plane 235a as a whole abuts against the side wall of the tray unit of the electronic imaging device, thereby better limiting the movement of the processing box along the A2 direction.

[0085] The guide groove 238 is located at the lower side (the side in the C2 direction) of the first groove 231 and communicates with the lower end opening of the first groove 231. When the tray unit with the process cartridge is moved into the interior of the electronic imaging device, the rotation stop protrusion moves relatively along the guide groove 238 and then enters the first groove 231 from the lower end opening of the first groove 231.

[0086] In addition, if Figures 8 to 9As shown, the conductive side end cover 230 is further provided with a mounting portion 239, and the mounting portion 239 is used to mount the second electrode 240. Different from the second electrode 240 being disposed on the photosensitive frame 210 and exposed through the second through hole 232 in the first embodiment, in the present embodiment, the electrode contact of the second electrode 240 is directly exposed by being mounted on the mounting portion 239 of the conductive side end cover 230, and is electrically connected to the charging roller through a portion of the second electrode 240 extending, so that during the operation of the electronic imaging device, a predetermined voltage from the electronic imaging device is transmitted to the charging roller. Specifically, the mounting portion 239 is a positioning column formed on the conductive side end cover 230, and the mounting portion 239 is formed to protrude from the plane 235 (outer side) in the A2 direction. The mounting portion 239 is located above the guide groove 238 in the third direction, and the mounting portion 239 is located behind the first groove 231 in the second direction (the side of the B2 direction), and there is a certain distance between the two; the first groove 231 and the mounting portion 239 are located on the same straight line in the second direction, that is, the mounting portion 239 and the first groove 231 have an overlapping portion in the second direction. The second electrode 240 can be fixedly mounted on the mounting portion 239 by means of snapping, pasting, welding, etc., and the second electrode 240 is directly exposed outside the conductive side end cover 230 to receive a predetermined voltage from the electronic imaging device.

[0087] Further, the second electrode 240 includes an extension portion 2401, which is a part of the second electrode 240, and the extension portion 2401 is electrically connected to the electrode contact (the second electrode 240 can be a conductive steel sheet, the electrode contact is a part of the conductive steel sheet, and the extension portion is another part of the conductive steel sheet). Preferably, in the third direction, the extension portion 2401 has an extension component and the length of the extension portion 2401 (i.e., the length extending along the third direction) is greater than the length of the first groove 231. The extension portion 2401 can extend along the surface of the conductive side end cover 230, for example, extending upward from the part of the second electrode 240 fixed to the mounting portion 239 to the upper edge of the conductive side end cover 230, bending along the upper edge of the conductive end cover 230 to the inner side of the conductive side end cover 230, and then extending downward to the position of the charging roller and electrically contacting the charging roller. After the second electrode 240 receives the predetermined voltage of the electronic imaging device through the electrode contact mounted on the mounting portion 239, it is transmitted to the charging roller through the extension portion 2401.

[0088] Optionally, the extension portion 2401 may extend around the surface of the conductive side end cover 230 in any manner / position / direction, as long as it can extend to the position of the charging roller and does not affect / interfere with other parts.

[0089] Optionally, the extension portion 2401 and the electrode contact may also be separate structures, and the two are electrically connected together, such as two conductive steel sheets.

[0090] Optionally, the second electrode 240 may also be made of a conductive material directly on the mounting portion 239 , so that the mounting portion 239 is the second electrode 240 . In this case, a side / a portion of the mounting portion 239 facing away from the guide groove 238 may be directly electrically connected to the charging roller.

[0091] Optionally, the mounting portion 239 may also be disposed at other positions of the conductive side end cover 230 , that is, the electrode contact of the second electrode 240 may be located at any position of the conductive side end cover 230 , and then extended to the position of the charging roller through the extension portion 2401 .

[0092] The solution of this embodiment allows greater freedom in the arrangement of the second electrode 240 on the conductive side end cover 230. The position of the second electrode 240 can be flexibly selected as needed, and more functional components can be arranged on the conductive side end cover 230. The processing box has a higher degree of integration, which is conducive to the miniaturization of the processing box.

[0093] The other structures and operation modes of the processing box in this embodiment are basically the same as those in the first embodiment and will not be described in detail here.

[0094] Embodiment 3

[0095] The structure of the processing box of this embodiment is basically the same as that of the processing box of the second embodiment, and the difference lies in that the structure of the conductive side end cover 230 is different.

[0096] In this embodiment, Figure 10 to Figure 11 As shown, a second through hole 232 is also provided on the conductive side end cover 230, but the second through hole 232 and the first groove 231 are not located in a straight line in the moving direction of the tray unit (ie, directions B1 and B2), that is, the second through hole 232 and the first groove 231 have no overlapping part in the second direction.

[0097] Specifically, Figure 10 to Figure 11 As shown, the conductive side end cap 230 is provided with a second through hole 232, and the second through hole 232 is provided above the mounting portion 239. The second electrode 240 (its electrode contact) is installed on the mounting portion 239, and the extension portion 2401 of the second electrode 240 passes through the second through hole 232 and is electrically connected to the charging roller. Specifically, the second through hole 232 is located directly above the mounting portion 239 and has a certain distance from the mounting portion 239. The second through hole 232 is located obliquely above the first groove 231 (on the side of the B2 and C1 directions), and the lower end of the second through hole 232 is located on the upper side of the upper end of the first groove 231, that is, when viewed along the second direction, the second through hole 232 is completely located on the upper side of the first groove 231, and there is no overlapping part between the two. The extension portion 2401 of the second electrode 240 extends upward along the third direction to the second through hole 232, then bends from the second through hole 232 to pass through the conductive side end cap 230 to reach the inner side thereof, and then extends to the position of the charging roller and is electrically connected thereto.

[0098] Optionally, the second through hole 232 may also be located obliquely above the mounting portion 239, and in the second direction, the second through hole 232 and the first groove 231 are never located in a straight line (there is no overlapping portion in the second direction), and the second electrode 240 may be inclined through the extension portion 2401 to reach the second through hole 232, or may be bent at a right angle to reach the second through hole 232, and the extension portion 2401 has an extension component in the third direction.

[0099] In some other embodiments, such as Fig.12 As shown, the second through hole 232 can also be set below the mounting portion 239. In this case, the screw hole 2310 (connecting hole) on the conductive side end cover 230 can be directly used as the second through hole 232. A portion of the screw hole 2310 is located within the range of the guide groove 238, and the other portion is located within the range of the plane 235a. The screw hole 2310 is located obliquely below the mounting portion 239 (on one side of the B2 direction and the C2 direction). Specifically, the second electrode 240 is mounted on the mounting portion 239, and the extension portion 2401 extends obliquely downward to the position of the screw hole 2310. Then, the extension portion 2401 is fixed to the screw hole 2310 by the screw 260 (connecting member), that is, the screw 260 is in contact with and electrically connected to the extension portion 2401. When the screw 260 passes through the screw hole 2310 and is connected to the photosensitive frame 210, a portion of the screw 260 facing away from the guide groove 238 (which can be an end face or a side face) is electrically connected to the charging roller. In the above manner, during the operation of the electronic imaging device, the second electrode 240 can transmit a predetermined voltage from the electronic imaging device to the charging roller through the extension portion 2401 and the screw 260 .

[0100] It should be noted that the extension portion 2401 of the second electrode 240 will pass through the guide groove 238 when extending downward, but the extension portion 2401 extends closely to the groove bottom surface of the guide groove 238, and when the rotation stop protrusion moves relatively in the guide groove 238, the extension portion 2401 will not interfere with the rotation stop protrusion. Preferably, a concave extension groove can also be provided on the groove bottom surface of the guide groove 238 to accommodate the extension portion 2401, so that the extension portion 2401 can be flush with the groove bottom of the guide groove 238 or lower than the groove bottom, and will not interfere with the rotation stop protrusion, and the extension groove can also limit the extension portion 2401.

[0101] In the present embodiment, although a second through hole 232 is provided on the conductive side end cover 230, the second through hole 232 is provided above or below the first groove 231, so that the second through hole 232 and the first groove 231 are not located in a straight line in the moving direction of the tray unit (that is, there is no overlapping part between the second through hole 232 and the first groove 231 in the B1 and B2 directions). Such a setting improves the degree of freedom of arrangement of the second through hole 232 relative to the first groove 231, thereby increasing the flexibility of setting the second through hole 232.

[0102] The other structures and operation modes of the processing box in this embodiment are basically the same as those in the second embodiment and will not be described in detail here.

[0103] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A process cartridge detachably mounted on a tray unit of an electronic imaging device, wherein the tray unit is capable of carrying the process cartridge and moving between an inner position and an outer position of the electronic imaging device along a second direction, wherein: The processing box comprises: a frame rotatably supporting a photosensitive drum and a charging roller, wherein the axis of the photosensitive drum extends along a first direction, and the first direction intersects with the second direction; A conductive side end cover, disposed at one end of the frame in the first direction; A second electrode, comprising an electrode contact for receiving a voltage from an electronic imaging device, the electrode contact being exposed outside the conductive side end cover through a second through hole, the second electrode being electrically connected to the charging roller; A first groove is provided on the conductive side end cover and is used to cooperate with the electronic imaging device to limit the movement of the process box; The first protrusion is protruding outwardly and is arranged on the outer side surface of the conductive side end cover. The first protrusion abuts against the side wall of the tray unit to limit the movement of the processing box along the first direction.

2. A process cartridge detachably mounted on a tray unit of an electronic imaging device, wherein the tray unit is capable of carrying the process cartridge and moving between an inner position and an outer position of the electronic imaging device along a second direction, wherein: The processing box comprises: a frame rotatably supporting a photosensitive drum and a charging roller, wherein the axis of the photosensitive drum extends along a first direction, and the first direction intersects with the second direction; A conductive side end cover, disposed at one end of the frame in the first direction; A first groove is provided on the conductive side end cover and is used to cooperate with the electronic imaging device to limit the movement of the process box; The second electrode includes an electrode contact for receiving a voltage from an electronic imaging device, wherein the electrode contact is exposed outside the conductive side end cover, and the second electrode also includes an extension electrically connected to the electrode contact, wherein the extension is electrically connected to the charging roller.

3. The process cartridge according to claim 2, wherein: The electrode contact is mounted on the outer side surface of the conductive side end cover, and the extension portion has an extension component along a third direction intersecting the first direction and the second direction.

4. The process cartridge according to claim 3, wherein: The length of the extension portion in the third direction is greater than the length of the first groove in the third direction.

5. The process cartridge according to claim 3, wherein: The extension portion extends along the outer side surface of the conductive side end cover to the edge of the conductive side end cover, then bends to the inner side of the conductive side end cover, and then extends to the position of the charging roller.

6. The process cartridge according to claim 5, wherein: A mounting portion is protrudingly provided on the outer side surface of the conductive side end cover, the electrode contact is mounted on the mounting portion, and the mounting portion is located at the rear side of the first groove in the second direction.

7. The process cartridge according to claim 3, wherein: A second through hole for the extension portion to pass through is provided on the conductive side end cover, and in the second direction, the second through hole and the first groove have no overlapping portion.

8. The process cartridge according to claim 7, wherein: A mounting portion is protrudingly provided on the outer side surface of the conductive side end cover, the electrode contact is mounted on the mounting portion, and the second through hole is located on the upper side or the lower side of the mounting portion in the third direction.

9. The process cartridge according to claim 8, wherein: The extension portion extends along the outer side surface of the conductive side end cover to the second through hole, then bends and passes through the second through hole, enters the inner side of the conductive side end cover, and then extends to the position of the charging roller.

10. The process cartridge according to claim 8, wherein: The conductive side end cover is provided with a connection hole, and the conductive side end cover is fixed to the frame after a connecting piece passes through the connection hole; The connecting hole is the second through hole, the extending portion extends to the second through hole and contacts and is electrically connected to the connecting member, and a portion of the connecting member is electrically connected to the charging roller.

11. The process cartridge according to any one of claims 1 to 10, characterized in that: The frame is also provided with a developing roller, a powder discharge knife and a first electrode, wherein the first electrode is electrically connected to the developing roller and the powder discharge knife; The conductive side end cover is provided with a second notch portion for exposing the first electrode.

12. The process cartridge according to claim 11, wherein: The frame is provided with a driving side end cover at the other end in the first direction; The processing box also includes a developing coupling for receiving the driving force of the electronic imaging device to drive the developing roller to rotate; The driving side end cover is provided with a first notch portion for exposing the developing coupling; The first notch portion extends to the upper end and the rear end of the driving side end cover.

Images