A printer toner cartridge

Abstract

The utility model provides a printer selenium drum, including waste powder storehouse main part and photosensitive drum, still include the fixed shaft who penetrates photosensitive drum, fixed shaft end portion has the card piece, waste powder storehouse main part has fixed structure, and fixed shaft both ends are connected with waste powder storehouse main part swing and are fixed with fixed structure through card piece with fixed structure card. The utility model has the beneficial effect that photosensitive drum can be connected with waste powder storehouse main part through fixed shaft, and card piece can cooperate with fixed structure to be self -locking, need not waste powder storehouse main part outside separate setting left, right end cap cooperation fixed, simple structure, guarantee printing work stability, reduce assembly or dismounting step, avoid assembling spare redundancy.

Description

Technical Field

[0001] This utility model belongs to the field of printer technology, and in particular relates to a printer toner cartridge. Background Technology

[0002] In existing technologies, the preferred photoconductor drum for toner cartridges is the OPC (Organic Photoconductor Drum). The OPC assembly is typically secured using a metal shaft that passes through both ends of the waste toner cartridge body and aligns with the left and right end caps on the outside of the waste toner cartridge body. During printer assembly, precise alignment of the metal shaft, OPC assembly, waste toner cartridge body, and its external left and right end caps is required, resulting in low assembly efficiency. Furthermore, the waste toner cartridge body and the two end caps used to secure the OPC assembly are redundant and complex, failing to meet the comprehensive development needs of home-use small printers in terms of assembly efficiency, manufacturing cost, and print quality. Traditional small printers suffer from technical problems such as low assembly efficiency, complex structure, and high manufacturing cost due to the need for alignment between the waste toner cartridge body and its external left and right end caps to secure the OPC assembly. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a printer toner cartridge, which can avoid the need to align with the left and right end covers of the waste toner container body to fix the photosensitive drum, improve assembly efficiency and is more suitable for small home printers.

[0004] The technical solution adopted by this utility model is: a printer drum, including a waste toner cartridge body and a photosensitive drum, and a fixed shaft passing through the photosensitive drum. The fixed shaft has a locking device at its end. The waste toner cartridge body has a fixing structure. The two ends of the fixed shaft are respectively movably connected to the waste toner cartridge body and secured to the fixing structure by the locking device.

[0005] Furthermore, positioning holes are opened at both ends of the waste powder hopper body to insert a fixing shaft. The fixing structure includes a bracket for fixing the clamp, which is set at the corresponding positioning hole and connected to the waste powder hopper body.

[0006] Furthermore, the card holder has a limiting groove, through which the card can pass and rotate to fit into the limiting groove.

[0007] Furthermore, the card holder has a guide ramp, along which the card can slide into the limiting groove.

[0008] Furthermore, the card holder has a limiting protrusion to prevent the card from rotating excessively.

[0009] Furthermore, there are two card slots arranged opposite each other, with a gap between the two card slots to insert cards.

[0010] Furthermore, the shoulder of the card and the fixed shaft has an axial clearance for embedding into the card holder.

[0011] The advantages and positive effects of this utility model are as follows: due to the adoption of the above technical solution, the photosensitive drum can be movably connected to the waste powder bin body through the fixed shaft, and the locking component can cooperate with the fixed structure to self-lock, without the need for alignment and fixing with the left and right end caps on the outside of the waste powder bin body; it has the advantages of simple structure, ensuring the working stability of OPC component, reducing assembly or disassembly steps, and avoiding redundant assembly parts. Attached Figure Description

[0012] Figure 1 This is an exploded view of one embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the fixing structure of one embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the card structure according to one embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the assembled three-dimensional structure of one embodiment of this utility model.

[0016] In the picture:

[0017] 1. Waste powder hopper main body; 2. OPC main body; 3. OPC end cap.

[0018] 4. OPC gear; 5. Fixed shaft; 6. Clamping parts

[0019] 7. Card holder; 11. First end of the main body of the waste powder hopper; 12. Second end of the main body of the waste powder hopper.

[0020] 13. Positioning hole 71, guide slope 72, limiting groove

[0021] 73. Limiting protrusion Detailed Implementation

[0022] The embodiments of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that terms such as "installation", "connection", and "fixation" should be interpreted broadly, and can refer to direct connection, installation or fixation, or indirect connection, installation or fixation. This utility model does not limit this.

[0025] like Figures 1 to 4 The diagram shows an embodiment of a printer toner cartridge according to this utility model. It includes a waste toner cartridge body 1 and a photosensitive drum, and a fixing shaft 5 penetrating the photosensitive drum. The fixing shaft 5 has a locking member 6 at its end. The waste toner cartridge body 1 has a fixing structure. Both ends of the fixing shaft 5 are movably connected to the waste toner cartridge body 1 and secured to the fixing structure by the locking member 6. Preferably, the second end of the fixing shaft 5 has the locking member 6, and the second end 12 of the waste toner cartridge body has a fixing structure. The second end of the fixing shaft 5 penetrates the second end 12 of the waste toner cartridge body and is secured to the fixing structure by the locking member 6. The first end of the fixing shaft 5 is movably connected to the first end 11 of the waste toner cartridge body. The photosensitive drum includes an OPC end cap 3, an OPC body 2, and an OPC gear 4 connected in sequence. The OPC end cap 3, OPC body 2, and OPC gear 4 all have a central through hole for the fixing shaft 5 to pass through. The second end of the fixed shaft 5 can sequentially pass through the first end 11 of the waste toner cartridge body, the OPC end cap 3, the OPC body 2, the OPC gear 4, and the second end 12 of the waste toner cartridge body, and is fixed to the fixed structure by a clip 6. The first end of the fixed shaft 5 is overlapped with the first end 11 of the waste toner cartridge body. In this embodiment, a drive unit connected to the waste toner cartridge body 1 is also included. During printing, the drive unit can control the rotation of the OPC body 2 through the OPC gear 4. The OPC body 2 can be stably rotatably connected to the waste toner cartridge body 1 through the fixed shaft 5. The structure and method by which the drive unit controls the rotation of the OPC gear 4 are existing technologies and will not be described again in this application.

[0026] The differences between this embodiment and the traditional fixed photosensitive drum are as follows:

[0027]

[0028]

[0029] The only components required for fixing the photosensitive drum are the waste toner cartridge body 1 and the fixing shaft 5. There is no need to align it with the left and right end covers. It can be directly fixed using the structure of the waste toner cartridge body 1, avoiding structural redundancy. Assembly verification shows that the number of components required to fix the photosensitive drum is reduced by at least 30%, which is especially suitable for small printers. During assembly and disassembly, it only requires insertion and rotation to achieve self-locking, reducing assembly steps. The clip 6 can cooperate with the fixing structure to self-lock, preventing the fixing shaft 5 from falling off due to rotation when the photosensitive drum rotates, ensuring the stability of continuous printing operations.

[0030] In this embodiment, positioning holes 13 are opened at both ends of the waste powder bin body 1 to insert the fixed shaft 5. The fixing structure includes a card seat 7 for fixing the card 6. The card 6 is locked with the card seat 7 to achieve axial fixation of the fixed shaft 5. The card seat 7 is set at the corresponding positioning hole 13 and connected to the waste powder bin body 1. The card 6 can pass through the positioning hole 13 and be locked with the card seat 7 after rotating by an angle A. The rotation angle A is greater than 0° and less than 180°. Preferably, the rotation angle A is 90°.

[0031] In this embodiment, the card holder 7 has a limiting groove 72, and the width of the limiting groove 72 is not less than the width of the card 6. The card 6 can pass through the positioning hole 13 and be rotatably embedded in the limiting groove 72 to achieve axial limiting of the fixed shaft 5.

[0032] In this embodiment, the card holder 7 has a guide slope 71, and the card 6 can slide along the guide slope 71 into the limiting groove 72. The guide slope 71 can reduce the difficulty of assembly and improve the efficiency of assembly or disassembly.

[0033] In this embodiment, the card holder 7 has a limiting protrusion 73 to prevent the card 6 from rotating excessively. Preferably, a limiting groove 72 is provided in the middle of the card holder 7, a guide slope 71 is provided at the first end of the card holder 7, and a limiting protrusion 73 is provided at the second end of the card holder 7, so as to realize the vertical locking state between the card 6 and the card holder 7, better ensure uniform force distribution, and improve the operational stability of the photosensitive drum. The limiting protrusion 73 can prevent the card 6 from rotating excessively, improve the efficiency of assembly and disassembly, facilitate personnel operation, and better prevent the card 6 from being disengaged under force when the photosensitive drum rotates at high speed.

[0034] In this embodiment, there are two card holders 7 arranged opposite each other, with a gap between the two card holders 7 to insert the card 6. Preferably, when the card 6 passes through the gap between the two card holders 7 and rotates 90°, the card 6 slides into the limiting groove 72 by the guide slope 71, and the limiting protrusion 73 can prevent the card 6 from rotating excessively.

[0035] In this embodiment, the shoulder of the clip 6 and the fixed shaft 5 has an axial clearance for embedding into the clip 7. Preferably, when the clip 6 is embedded in the limiting groove 72, the distance between the bottom of the limiting groove 72 and the shoulder of the fixed shaft 5 is adapted to the axial clearance, so as to avoid axial shaking of the fixed shaft 5 and affect the working stability of OPC.

[0036] During disassembly, pull the clip 6 towards the second end 12 of the waste powder hopper body to disengage the clip 6 from the limiting groove 72, then rotate the clip 6 in the opposite direction. The clip 6 will fall back from the guide slope 71 to the gap between the two clip seats 7, and then move out of the positioning hole 13 at the second end 12 of the waste powder hopper body, the photosensitive drum, and the positioning hole 13 at the first end 11 of the waste powder hopper body in sequence.

[0037] This embodiment does not require the fixation of the two end caps, and the space occupied is reduced through structural optimization; assembly and disassembly do not require the alignment of multiple holes and the installation and removal of screws, and self-locking can be achieved simply by inserting and rotating. The limiting groove 72 and the limiting protrusion 73 work together with multiple limiting to ensure printing stability while reducing production costs, making it especially suitable for small printers.

[0038] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A printer toner cartridge, comprising a waste toner container body and a photosensitive drum, characterized in that: It also includes a fixed shaft that passes through the photosensitive drum, the fixed shaft having a locking element at its end, the waste powder hopper having a fixing structure, and the two ends of the fixed shaft being movably connected to the waste powder hopper and secured to the fixing structure by the locking element.

2. The printer drum according to claim 1, characterized in that: The waste powder hopper body has positioning holes at both ends for inserting the fixed shaft. The fixing structure includes a card holder for fixing the card, which is located at the corresponding positioning hole and connected to the waste powder hopper body.

3. The printer drum according to claim 2, characterized in that: The card holder has a limiting groove, and the card can pass through the positioning hole and rotate to fit into the limiting groove.

4. The printer drum according to claim 3, characterized in that: The card holder has a guide slope, and the card can slide along the guide slope into the limiting groove.

5. The printer drum according to any one of claims 2-4, characterized in that: The card holder has a limiting protrusion to prevent the card from rotating excessively.

6. The printer drum according to any one of claims 2-4, characterized in that: The number of card holders is two and they are arranged opposite each other, with a gap between the two card holders to insert the card.

7. The printer drum according to any one of claims 2-4, characterized in that: The clip and the shoulder of the fixed shaft have an axial clearance for embedding into the clip holder.

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