Processing box

Abstract

The utility model relates to a process cartridge which is detachably mounted in an electronic imaging device, the electronic imaging device is provided with a door cover and a transfer roller, the process cartridge comprises a photosensitive drum and a developing roller, the photosensitive drum is rotatably supported on a drum frame, the developing roller is rotatably supported on a developing frame, the drum frame is provided with a pressure receiving part, and the pressure receiving part is arranged on the developing roller. The pressed part is used for being matched with a pressing part on the door cover, and the pressed part is arranged between the two end parts of the drum frame in the length direction of the drum frame. According to the processing box, the pressed part is arranged between the two end parts of the drum frame along the length direction, so that after the door cover is closed, the pressed part is directly pressed by the pressing part on the door cover, the pressing effect of the electronic imaging device on the processing box is relatively uniform, a stable gap or stable contact can be kept between the photosensitive drum and the transfer printing roller, and the processing box is not easy to damage. Therefore, the state of the processing box is relatively stable, and the imaging effect of the electronic imaging device is relatively good.

Description

Technical Field

[0001] The present application relates to the technical field of printing consumables, and in particular to a processing box. Background Art

[0002] like Figure 1 As shown, the existing electronic imaging device A has a housing portion 1a and a door cover 2a, and the door cover 2a can cover the housing portion 1a, and the existing processing box can be installed in the housing portion 1a. The processing box installed in the housing portion 1a, its photosensitive drum and transfer roller 5a face each other, so that an image or text (i.e., imaging) appears on the paper passing between the two. The door cover 2a is provided with an intermediate pressing member 3a and a force applying member 4a for pressing the processing box on both sides along the width direction. In order to maintain a stable gap or stable contact between the photosensitive drum and the transfer roller 5a, after the door cover 2a is closed, the force applying members 4a located on both sides first press the intermediate pressing member 3a, and the intermediate pressing member 3a is pressed against the two ends of the processing box after being subjected to force. In this way, a stable gap or stable contact between the photosensitive drum and the transfer roller 5a is maintained, thereby ensuring the imaging effect of the electronic imaging device.

[0003] In the above manner, after the processing box is installed in the electronic imaging device A, the pressed positions are located at the two ends of the processing box, and the distance between the two pressed positions is large. Therefore, the processing box is prone to uneven force during the pressing process. In addition, since the force-applying member 4a is required to press the middle pressing member 3a first, and the middle pressing member 3a is pressed against the two ends of the processing box after receiving the force, the stability of the processing box is poor and the imaging effect of the electronic imaging device is not good. Utility Model Content

[0004] The present application provides a processing box, which is used to solve the problem that the processing box is easily subjected to uneven force during the pressing process, resulting in poor stability of the processing box and poor imaging effect of the electronic imaging device.

[0005] A processing box provided in an embodiment of the present application can be detachably installed in an electronic imaging device, wherein the electronic imaging device is provided with a door cover and a transfer roller, and the processing box includes a photosensitive drum and a developing roller, wherein the photosensitive drum is rotatably supported on a drum frame, and the developing roller is rotatably supported on the developing frame, and a pressure-bearing portion is provided on the drum frame, wherein the pressure-bearing portion is used to cooperate with a pressing portion on the door cover, and wherein the pressure-bearing portion is provided between two end portions of the drum frame along its length direction.

[0006] In a possible design, a preset area is provided on the drum frame, and the pressure-bearing portion is located in the preset area; along the length direction of the drum frame, the length L1 of the preset area satisfies: 9mm≤L1≤249mm.

[0007] In a possible design, the processing box includes a handle arranged on the drum frame, and the pressure-receiving portion is arranged on the handle.

[0008] In a possible design, one of the drum frame and the handle is provided with a guide groove, and the other is provided with a guide block, the guide groove and the guide block cooperate, and the guide block can slide in the guide groove.

[0009] In a possible design, the drum frame has a recessed portion, and the handle is installed in the recessed portion; an elastic member is provided between the recessed portion and the handle.

[0010] In a possible design, the recess is provided with a first mounting protrusion, the handle is provided with a second mounting protrusion, and two ends of the elastic member are respectively sleeved on the first mounting protrusion and the second mounting protrusion.

[0011] In a possible design, the handle and the drum frame are fixedly connected.

[0012] In a possible design, the pressure-bearing portion is a surface of the handle that faces away from the drum frame.

[0013] In a possible design, the pressed portion is a protrusion on a surface of the handle facing away from the drum frame.

[0014] In a possible design, projected along the axial direction of the photosensitive drum, a horizontal distance L2 between the pressure portion and the axis of the photosensitive drum satisfies: 65mm≤L2≤75mm, and / or a vertical distance L3 between the pressure portion and the axis of the photosensitive drum satisfies: 5mm≤L3≤15mm.

[0015] In a possible design, the pressure-bearing portion is a protrusion arranged on the drum frame.

[0016] In a possible design, projected along the axial direction of the photosensitive drum, a horizontal distance L4 between the pressure portion and the axis of the photosensitive drum satisfies: 36mm≤L4≤46mm, and / or a vertical distance L5 between the pressure portion and the axis of the photosensitive drum satisfies: 24mm≤L5≤34mm.

[0017] In a possible design, the electronic imaging device to which the processing box is applicable is provided with a movable pressing member and a fixed pressing portion, and the pressed portion only cooperates with the fixed pressing portion and does not cooperate with the movable pressing member.

[0018] In the present application, the pressure-receiving portion is arranged between the two ends of the drum frame along its length direction, so that after the door cover is closed, the pressure-receiving portion is directly pressed by the pressing portion on the door cover, the pressure effect of the processing box from the electronic imaging device is relatively uniform, and a stable gap or stable contact can be maintained between the photosensitive drum and the transfer roller, so that the state of the processing box is relatively stable and the imaging effect of the electronic imaging device is better.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an existing processing box installed in an electronic imaging device;

[0021] Figure 2 This is a schematic diagram of the structure of the processing box provided in the present application in the first embodiment;

[0022] Figure 3 for Figure 1 A schematic structural diagram of the processing box from another perspective;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the middle processing box and the door cover;

[0024] Figure 5 for Figure 4 Side view of

[0025] Figure 6 for Figure 1 A schematic structural diagram of the processing box from another perspective;

[0026] Figure 7 for Figure 1 Exploded diagram of some structures;

[0027] Figure 8 for Figure 7 A partial enlarged view of the middle Ⅰ area;

[0028] Fig. 9 for Figure 7 A partial enlarged view of the middle II area;

[0029] Fig.10 It is a schematic structural diagram of the processing box in the second embodiment;

[0030] Fig.11 for Fig.10 Side view of

[0031] Fig.12 is a schematic structural diagram of the process box in the third embodiment;

[0032] Fig.13for Fig.12 Side view of.

[0033] Reference numerals:

[0034] 1a-accommodation portion;

[0035] 2a-door cover;

[0036] 3a-middle pressing piece;

[0037] 4a-force applying member;

[0038] 5a-transfer roller;

[0039] 6a-pressing part;

[0040] 1- Drum frame;

[0041] 11-photosensitive drum;

[0042] 12-guide groove;

[0043] 13-concave;

[0044] 2-development frame;

[0045] 21-developing roller;

[0046] 3-pressure part;

[0047] 4-Handle;

[0048] 41-guide block;

[0049] 42-second mounting protrusion;

[0050] 5- elastic member;

[0051] 6- End cap.

[0052] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0053] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0054] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0056] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0057] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0058] The present application provides a processing box that can be detachably installed in an electronic imaging device. Figure 2 As shown, the processing box includes a drum frame 1, a developing frame 2, a photosensitive drum 11 and a developing roller 21. The photosensitive drum 11 is rotatably supported on the drum frame 1. A powder bin for accommodating a developer is provided in the developing frame 2. The developing roller 21 is rotatably supported on the developing frame 2. The drum frame 1 and the developing frame 2 are connected so that the photosensitive drum 11 and the developing roller 21 are opposite to each other to enable the developing work.

[0059] like Figure 3 to Figure 5 As shown, a pressure-receiving portion 3 is provided on the drum frame 1, and the pressure-receiving portion 3 is used to cooperate with the pressing portion 6a on the door cover 2a of the electronic imaging device A. The pressure-receiving portion 3 is provided between the two ends of the drum frame 1 along its length direction, so that after the door cover 2a is closed, the pressure-receiving portion 3 is directly pressed by the pressing portion 6a on the door cover 2a, and the pressure effect of the processing box from the electronic imaging device A is relatively uniform, and a stable gap or stable contact can be maintained between the photosensitive drum 11 and the transfer roller 5a, so that the state of the processing box is relatively stable, and the imaging effect of the electronic imaging device A is better.

[0060] Specifically, the pressure receiving portion 3 is arranged at the rear side of the installation direction Q of the process box, so that the pressing portion 6a on the door cover 2a is convenient for abutting against the pressure receiving portion 3 and applying a pressing effect thereto.

[0061] More specifically, Figure 6As shown, the drum frame 1 has a preset area, which is located between the two ends along the length direction of the drum frame 1, and the center of the preset area coincides with the center line of the length direction of the process cartridge. The pressure receiving portion 3 is located in the preset area, and further when the pressing portion 6a presses the pressure receiving portion 3, the pressure applied to the process cartridge is relatively uniform.

[0062] like Figure 6 As shown, the length L1 of the preset area satisfies: 9mm≤L1≤249mm. For example, the length L1 of the preset area can be 9mm, 20mm, 50mm, 80mm, 100mm, 150mm, 200mm, 249mm, etc.

[0063] The structure of the electronic imaging device adapted to the present application is basically the same as that of the existing electronic imaging device A, except that the intermediate pressing member 3a and the force applying member 4a are not provided or used, but the pressing portion 6a is directly provided or used on the door cover 2a, thereby simplifying the transmission process of the pressing force, making the process of the pressing portion 6a directly pressing the pressed portion 3 more stable and reliable. It can be understood that the processing box provided by the present application can be applicable to an electronic imaging device that only has a fixed pressing portion 6a but no movable intermediate pressing member 3a, and can also be applicable to an electronic imaging device that has both a fixed pressing portion 6a and a movable intermediate pressing member 3a.

[0064] Specifically, Figure 4 and Figure 5 As shown, the pressing portion 6a can be a protrusion arranged on the surface of the door cover 2a facing the accommodating portion 1a. Since the pressing portion 6a is fixedly connected to the door cover 2a, it is beneficial to more stably press the processing box to keep the processing box in a stable state.

[0065] More specifically, two pressing portions 6a may be provided along the width direction of the door cover 2a, and the two pressing portions 6a are symmetrically distributed.

[0066] Regarding the specific structure of the pressure-bearing portion 3 , the present application provides the following multiple embodiments.

[0067] Embodiment 1

[0068] In this embodiment, if Figure 3 and Figure 7 As shown, a handle 4 is provided on the rear side of the drum frame 1 along the installation direction Q of the process cartridge, and the handle 4 can be held by a user to facilitate taking and placing the process cartridge. The pressure-receiving portion 3 is provided in a preset area and on the rear side of the handle 4 along the installation direction Q of the process cartridge (i.e., the surface of the handle 4 facing away from the drum frame 1), so that the pressure-receiving portion 3 can move with the handle 4 when the handle 4 moves.

[0069] The pressure-receiving portion 3 may be a surface of the handle 4 that is away from the drum frame 1 and can contact the pressing portion 6a. The pressure-receiving portion 3 of this structure has a simple structure and is easy to produce and process.

[0070] In this embodiment, the handle 4 is movable relative to the drum frame 1 or the developing frame 2. Figure 8 and Fig. 9 As shown, a guide groove 12 is provided on the side of the drum frame 1 facing the handle 4, and the guide groove 12 extends along the installation direction Q of the processing box 10. A guide block 41 is provided on the handle 4, and the guide block 41 cooperates with the guide groove 12 so that the handle 4 can move relative to the drum frame 1.

[0071] Specifically, the guide block 41 may be a circular shaft portion or a protrusion of other shapes.

[0072] More specifically, Figure 7 As shown, a recess 13 for mounting the handle 4 is provided on the drum frame 1, the recess 13 is located in the middle of the drum frame 1 along its length direction and on the rear side along the mounting direction Q, and the guide grooves 12 are located on both sides of the recess 13 in the length direction of the processing box.

[0073] Further, such as Figure 7 As shown, an elastic member 5 is further provided between the handle 4 and the drum frame 1, so that the handle 4 and the drum frame 1 are elastically connected, so that when the handle 4 is pressed by the pressing portion 6a, it plays a buffering role, so that the photosensitive drum 11 and the transfer roller 5a are in stable contact or maintained in a stable state. The elastic member 5 can be an elastic object such as an elastic sponge or a compression spring.

[0074] Specifically, Fig. 9 As shown, the recess 13 is provided with a first mounting protrusion between the two guide grooves 12, and the handle 4 is provided with a second mounting protrusion 42 on the side facing the recess 13, and the two ends of the elastic member 5 are respectively sleeved on the first mounting protrusion and the second mounting protrusion 42, thereby limiting the movement of the elastic member 5 and preventing the elastic member 5 from falling off, thereby improving the installation reliability of the elastic member 5.

[0075] After the handle 4 is assembled on the drum frame 1, the handle 4 is biased toward the rear side of the processing box under the elastic force of the elastic member 5, that is, the elastic member 5 is in a compressed state, and the guide block 41 is inserted into the guide groove 12 and is located at the rear side of the guide groove 12.

[0076] It is understandable that the handle 4 can also be arranged on the developing frame 2. The present application does not limit the shape of the handle 4, and it can be arranged as required, such as rectangular or circular.

[0077] In addition, the positions of the guide groove 12 and the guide block 41 can be interchanged, that is, the guide groove 12 is provided on the handle 4 and the guide block 41 is provided on the recess 13 .

[0078] Next, combine Figure 4 and Figure 5 The following describes the operation of the processing box after the door cover 2a is closed.

[0079] When installing the processing box, the user can hold the processing box by the handle 4 and install the processing box into the accommodating part 1a of the electronic imaging device A along its installation direction Q. At this time, the processing box is not installed in place and its position state is not stable.

[0080] Then the user closes the door cover 2a, and the pressing part 6a on the door cover 2a presses against the pressure part 3 of the handle 4, so that the handle 4 is forced to move a predetermined distance toward the drum frame 1, and at the same time, the processing box is also driven to move a predetermined distance in its installation direction Q, so that the processing box is installed in place, so that the photosensitive drum 11 supported on the drum frame 1 and the transfer roller 5a can be in stable contact or stably maintain a certain gap, so that the processing box as a whole is in a stable state.

[0081] Embodiment 2

[0082] This embodiment has been modified from the first embodiment. In this embodiment, the connection mode of the handle 4 and the drum frame 1 is a fixed connection, and the other structures of the processing box are similar to those of the first embodiment. Therefore, the following focuses on describing the different parts, and the same marks are used to describe the same parts.

[0083] like Fig.10 As shown, the pressed portion 3 is a convex block arranged on the side of the handle 4 facing away from the drum frame 1, and the position of the convex block corresponds to the pressing portion 6a on the door cover 2a, so that the pressed portion 3 can be pressed by the pressing portion 6a. The handle 4 is fixedly connected to the drum frame 1, and after the pressed portion 3 is pressed by the pressing portion 6a, the processing box as a whole moves a predetermined distance in its installation direction Q, so that the processing box is installed in place.

[0084] Specifically, the handle 4 and the drum frame 1 can be separately provided, for example, the two can be fixedly connected by bonding, riveting or welding, etc. The handle 4 and the drum frame 1 can also be integrally formed.

[0085] It is understandable that the number, shape and size of the pressure receiving portion 3 are not limited, as long as they can withstand the pressure of the pressing portion 6a. The pressure receiving portion 3 can also be elastic, so as to play a buffering role when subjected to the pressure of the pressing portion 6a, thereby making the photosensitive drum 11 and the transfer roller 5a in stable contact or maintained in a stable state.

[0086] Further, such as Fig.11As shown, projected along the axial direction of the photosensitive drum 11 (i.e., along the length direction of the processing box), the horizontal distance L2 between the pressure portion 3 and the axis of the photosensitive drum 11 satisfies: 65mm≤L2≤75mm, and the vertical distance L3 between the pressure portion 3 and the axis of the photosensitive drum 11 satisfies: 5mm≤L3≤15mm, so that the pressure portion 3 can accurately and stably abut against the pressing portion 6a, and then the photosensitive drum 11 and the transfer roller 5a can be in stable contact or stably maintain a certain gap, so that the processing box as a whole is in a stable state.

[0087] Preferably, the distance L2 is 70 mm, and the distance L3 is 10 mm. In addition, the pressure receiving portion 3 is still arranged in the preset area.

[0088] In this embodiment, the action process of the processing box after the door cover 2a is closed is basically the same as that of the first embodiment, except that the handle 4 will not move relative to the drum frame 1 after being pressed by the pressing portion 6a, but directly drives the processing box to move in its installation direction Q, so the same parts will not be repeated.

[0089] Embodiment 3

[0090] This embodiment is a modification of the second embodiment. In this embodiment, the pressure receiving portion 3 is arranged on the drum frame 1, and the other structures of the process cartridge are similar to those of the second embodiment. Therefore, the following focuses on describing the different parts, and uses the same reference numerals to describe the same parts.

[0091] like Fig.12 As shown, the pressed portion 3 is a convex block arranged on the drum frame 1, and the position of the convex block corresponds to the pressing portion 6a on the door cover 2a, so that the pressed portion 3 can be pressed by the pressing portion 6a. After the pressed portion 3 is pressed by the pressing portion 6a, the processing box as a whole is driven to move a predetermined distance in its installation direction Q, so that the processing box is installed in place.

[0092] Optionally, the number, shape and size of the pressure receiving portion 3 are not limited, as long as they can accept the pressure of the pressing portion 6a. Preferably, the number of the pressure receiving portions 3 is two, and the shapes are regular and the sizes are appropriate. Optionally, the pressure receiving portion 3 can also be elastic, so as to play a buffering role when being pressed by the pressing portion 6a, thereby making the photosensitive drum 11 and the transfer roller 5a in stable contact or maintained in a stable state.

[0093] Further, such as Fig.13As shown, projected along the axial direction of the photosensitive drum 11 (i.e., along the length direction of the processing box), the horizontal distance L4 between the pressure portion 3 and the axis of the photosensitive drum 11 satisfies: 36mm≤L4≤46mm, and the vertical distance L5 between the pressure portion 3 and the axis of the photosensitive drum 11 satisfies: 24mm≤L5≤34mm, so that the pressure portion 3 can accurately and stably abut against the pressing portion 6a, and then the photosensitive drum 11 and the transfer roller 5a can be in stable contact or stably maintain a certain gap, so that the processing box as a whole is in a stable state.

[0094] Preferably, the distance L4 is 41 mm, and the distance L5 is 29 mm. In addition, the pressure receiving portion 3 is still arranged in the preset area.

[0095] In this embodiment, the action process of the processing box after the door cover 2a is closed is basically the same as that of the second embodiment, except that the handle 4 is not pressed but the pressure-bearing part 3 on the drum frame 1 is pressed to directly drive the processing box to move in its installation direction Q, so the same parts are not repeated.

[0096] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A process cartridge, detachably mounted in an electronic imaging device, the electronic imaging device being provided with a door cover (2a) and a transfer roller (5a), the process cartridge comprising a photosensitive drum (11) and a developing roller (21), the photosensitive drum (11) being rotatably supported on a drum frame (1), the developing roller (21) being rotatably supported on a developing frame (2), characterized in that: The drum frame (1) is provided with a pressure-receiving portion (3), which is used to cooperate with the pressing portion (6a) on the door cover (2a). The pressure-receiving portion (3) is arranged between the two ends of the drum frame (1) along its length direction.

2. The process cartridge according to claim 1, wherein: The drum frame (1) has a preset area, and the pressure-receiving portion (3) is located in the preset area; Along the length direction of the drum frame (1), the length L1 of the preset area satisfies: 9mm≤L1≤249mm.

3. The process cartridge according to claim 2, wherein: The processing box comprises a handle (4) arranged on the drum frame (1), and the pressure receiving portion (3) is arranged on the handle (4).

4. The process cartridge according to claim 3, wherein: One of the drum frame (1) and the handle (4) is provided with a guide groove (12), and the other is provided with a guide block (41); the guide groove (12) and the guide block (41) cooperate with each other, and the guide block (41) can slide in the guide groove (12).

5. The process cartridge according to claim 3, wherein: The drum frame (1) has a recess (13), and the handle (4) is mounted on the recess (13); An elastic member (5) is provided between the recess (13) and the handle (4).

6. The process cartridge according to claim 5, wherein: The recess (13) is provided with a first mounting protrusion, the handle (4) is provided with a second mounting protrusion (42), and the two ends of the elastic member (5) are respectively sleeved on the first mounting protrusion and the second mounting protrusion (42).

7. The process cartridge according to claim 3, wherein: The handle (4) and the drum frame (1) are fixedly connected.

8. The process cartridge according to any one of claims 3 to 7, characterized in that: The pressure-bearing portion (3) is a surface of the handle (4) that faces away from the drum frame (1).

9. The process cartridge according to any one of claims 3 to 7, characterized in that: The pressure receiving portion (3) is a protrusion on the surface of the handle (4) facing away from the drum frame (1).

10. The process cartridge according to claim 9, wherein: Projected along the axial direction of the photosensitive drum (11), the horizontal distance L2 between the pressure-bearing portion (3) and the axis of the photosensitive drum (11) satisfies: 65mm≤L2≤75mm, and / or the vertical distance L3 between the pressure-bearing portion (3) and the axis of the photosensitive drum (11) satisfies: 5mm≤L3≤15mm.

11. The process cartridge according to claim 2, wherein: The pressure receiving portion (3) is a convex block arranged on the drum frame (1).

12. The process cartridge according to claim 11, wherein: Projected along the axial direction of the photosensitive drum (11), the horizontal distance L4 between the pressure-bearing portion (3) and the axis of the photosensitive drum (11) satisfies: 36mm≤L4≤46mm, and / or the vertical distance L5 between the pressure-bearing portion (3) and the axis of the photosensitive drum (11) satisfies: 24mm≤L5≤34mm.

13. A process cartridge according to any one of claims 1 to 7 or 11 to 12, characterized in that: The electronic imaging device to which the processing box is applicable is provided with a movable pressing member (3a) and a fixed pressing portion (6a), and the pressed portion (3) only cooperates with the fixed pressing portion (6a) and does not cooperate with the movable pressing member (3a).

Images