Novel TN920 toner cartridge

Abstract

The utility model relates to the technical field of toner cartridges, and discloses a novel TN920 toner cartridge which comprises a toner cartridge main body, a toner bin, a developing roller and a toner outlet knife are arranged on the toner cartridge main body, a mounting surface is arranged on the front side of the developing roller, a toner outlet groove is formed in the mounting surface below the developing roller, and the toner outlet knife is arranged in the toner outlet groove. The developing roller is rotatably arranged on the toner cartridge main body, a gap used for controlling the thickness of a toner layer on the developing roller is formed between the developing roller and a knife edge of the toner outlet knife, the toner outlet knife is arranged in the toner outlet groove, the width of the toner outlet groove is larger than that of the toner outlet knife, and the toner outlet groove is arranged in the toner cartridge main body. A conductive end cover is arranged on one side of the toner cartridge main body, a gear end cover is arranged on the other side of the toner cartridge main body, a limiting sleeve corresponding to the developing roller is integrally formed on the gear end cover, and the limiting sleeve is arranged in a protruding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of toner cartridges, and particularly relates to a new type of TN920 toner cartridge. Background Art

[0002] The core technology of a printer is electrophotographic technology, and the associated component is the toner cartridge, which is mainly composed of a developing unit and a photoreceptor unit combined in a certain connection manner. The developing unit mainly consists of a toner bin, an agitator, a developing roller, a blade, a powder feeding roller, etc., and the photoreceptor unit mainly consists of a photosensitive drum, a charging roller, a cleaning blade and a waste toner bin.

[0003] The developing roller of the BROTN820 / 850 / 880 series toner cartridges is relatively heavy, resulting in increased transportation and production costs. Its production process is particularly complex, and it is necessary to optimize the design to replace it with a product that is lighter in weight, simpler in manufacturing process and has stronger versatility to achieve the same use effect. In view of this, the researchers in this field designed a new type of TN920 toner cartridge. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a new type of TN920 toner cartridge with higher versatility of the blade.

[0005] The technical solution of the utility model is: a new type of TN920 toner cartridge, including a toner cartridge body, on which a toner bin, a developing roller and a blade are provided. An installation surface is provided on the front side of the developing roller, and a powder outlet groove is provided below the installation surface of the developing roller. The developing roller is rotatably arranged on the toner cartridge body. A gap for controlling the thickness of the toner layer on the developing roller is formed between the developing roller and the edge of the blade. The blade is installed in the powder outlet groove, and the width of the powder outlet groove is greater than the width of the blade. A conductive end cap is provided on one side of the toner cartridge body, and a gear end cap is provided on the other side. A limiting sleeve is integrally formed on the gear end cap corresponding to the developing roller, and the limiting sleeve protrudes.

[0006] As can be seen from the above solution, the blade is installed in the powder outlet groove, and the width of the powder outlet groove is greater than the width of the blade, which is suitable for the compatible installation of blades of different sizes. The limiting sleeve is used to limit the developing roller when the gear end cap is installed on the side of the toner cartridge body.

[0007] Installation seats are provided on both sides of the powder outlet groove of the toner cartridge body, and installation holes are provided on the installation seats. Connection holes corresponding to the installation holes are provided on the blade. Thus, the blade is limited and fixed by corresponding the connection holes with the installation seats.

[0008] The developing roller includes a roller body and an iron core arranged coaxially, and connecting heads are provided at both ends of the iron core protruding from the roller body.

[0009] The toner blade includes a blade portion and connecting blocks provided at both ends of the blade portion, and the connecting holes are provided on the connecting blocks. Thus, the connecting blocks are inserted with fasteners corresponding to the mounting holes through the connecting holes to achieve the fixed installation of the toner blade on the mounting seat.

[0010] A clamping groove is provided on the conductive end cover, the clamping groove is adapted to the connecting head, and a notch is communicated with the clamping groove. Thus, the clamping groove is used to realize the limit installation of the connecting head through the notch.

[0011] A powder adding port is provided on the conductive end cover of the toner cartridge, the powder adding port is communicated with the toner cartridge, a powder adding cover is connected to the powder adding port, the powder adding cover includes an end cover portion and a connecting portion, the connecting portion is threadedly connected to the powder adding port, the diameter of the end cover portion is larger than that of the connecting portion, a rotating column is provided on the end cover portion, and a plurality of anti-slip grooves are provided on the outer circumferential wall of the rotating column. Thus, the powder adding port is used to realize the addition of toner in the toner cartridge, and the rotating column is used to rotate to realize the installation and disassembly of the powder adding cover on the powder adding port.

[0012] A cover body is buckled on the end cover portion, a buckling cavity adapted to the surface of the end cover portion is provided at the bottom of the cover body, a fastening member is provided on the cover body, and an elastic buckle adapted to the fastening member is provided on the conductive end cover. Thus, the fastening member and the elastic buckle cooperate to realize the elastic buckling of the cover body on the conductive side cover, and the cover body is buckled on the end cover portion to lock the powder adding cover on the conductive side cover to prevent the powder adding cover from falling off and causing toner leakage. Description of the Drawings

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the conductive end cover;

[0015] Figure 3 is the structural schematic diagram of the gear end cover;

[0016] Figure 4 is the structural schematic diagram of the developing roller;

[0017] Figure 5 is the structural schematic diagram of the toner blade;

[0018] Figure 6 is the structural schematic diagram of the powder adding cover;

[0019] Figure 7It is a schematic structural diagram of the cover body installed on the conductive end cover. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] As Figures 1 to 7 shown, the present invention is a new type of TN920 toner cartridge, including a toner cartridge body 1. A toner bin 2, a developing roller 3, and a powder outlet blade 4 are provided on the toner cartridge body 1. An installation surface 5 is provided on the front side of the developing roller 3. A powder outlet groove 51 is provided below the installation surface 5 of the developing roller 3. The developing roller 3 is rotatably arranged on the toner cartridge body 1. The developing roller 3 includes a roller body 31 and an iron core 32 coaxially arranged. Connecting heads 33 are provided at both ends of the iron core 32 protruding from the roller body 31. A gap for controlling the thickness of the toner layer on the developing roller 3 is formed between the developing roller 3 and the cutting edge of the powder outlet blade 4. The powder outlet blade 4 is installed in the powder outlet groove 51. The width of the powder outlet groove 51 is greater than the width a of the powder outlet blade 4. There is a gap between the bottom wall of the powder outlet groove 51 and the powder outlet blade. The powder outlet blade 4 includes a blade portion 41 and connecting blocks 42 provided at both ends of the blade portion 41. A connecting hole 421 is provided on the connecting block 42. A conductive end cover 11 is provided on one side of the toner cartridge body 1, and a gear end cover 12 is provided on the other side. A limiting sleeve 14 is integrally formed on the gear end cover 12 corresponding to the developing roller 3. The limiting sleeve 14 protrudes.

[0022] Installation seats 6 are provided on both sides of the powder outlet groove 51 of the toner cartridge body 1. Installation holes 61 are provided on the installation seats 6. Connecting holes 421 corresponding to the installation holes 61 are provided on the powder outlet blade 4.

[0023] A clamping groove 15 is provided on the conductive end cover 11. The clamping groove 15 is adapted to the connecting head 33. A notch 151 is communicated with the clamping groove 15.

[0024] The toner cartridge 2 is provided with a powder adding port 7 on the conductive end cap 11. The powder adding port 7 is communicated with the toner cartridge 2. A powder adding cover 8 is connected to the powder adding port 7. The powder adding cover 8 includes an end cover portion 81 and a connecting portion 82. The connecting portion 82 is threadedly connected to the powder adding port 7. The diameter of the end cover portion 81 is larger than that of the connecting portion 82. A rotating column 83 is provided on the end cover portion 81. A plurality of anti-slip grooves are provided on the outer circumferential wall of the rotating column 83. A cover body 84 is buckled on the end cover portion 81. A buckling cavity 841 adapted to the surface of the end cover portion 81 is provided at the bottom of the cover body 84. A fastening member 842 is provided on the cover body 84. An elastic buckle 111 adapted to the fastening member 842 is provided on the conductive end cap 11. In this embodiment, the fastening member 842 is bent. The elastic buckle 111 is made of an elastic metal sheet. A guiding inclined surface and a buckling groove are provided on the elastic buckle 111. The end of the fastening member 842 slides into the buckling groove along the guiding inclined surface to realize the buckling of the cover body 84 on the conductive end cap 11, so as to realize the locking and limiting of the powder adding cover.

[0025] In the present utility model, when toner needs to be added, an outward force is applied to the elastic buckle 111 to release the locking of the elastic buckle 111 on the fastening member 842, the cover body 84 is removed, the rotating column 83 is rotated, the powder adding cover 8 is taken out from the powder adding port 7, and toner is added to the powder adding port 7; after the toner is added, the rotating column 83 is rotated, the connecting portion 82 of the powder adding cover 8 is screwed into the powder adding port 7, the cover body 84 is arranged on the powder adding cover 8 through the buckling cavity 841, and the fastening member 842 enters into the buckling groove along the guiding inclined surface on the elastic buckle 111 for locking and limiting.

[0026] Finally, it should be emphasized that the above description is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel TN920 toner cartridge, comprising a toner cartridge body (1), wherein the toner cartridge body (1) is provided with a toner bin (2), a developing roller (3) and a toner knife (4), and wherein: The front side of the developing roller (3) is provided with a mounting surface (5), and a powder outlet groove (51) is provided below the developing roller (3) on the mounting surface (5). The developing roller (3) is rotatably arranged on the toner cartridge body (1), and a gap is formed between the developing roller (3) and the blade of the powder outlet knife (4) for controlling the thickness of the toner layer on the developing roller (3). The powder outlet knife (4) is installed in the powder outlet groove (51), and the width of the powder outlet groove (51) is greater than the width of the powder outlet knife (4). A conductive end cover (11) is provided on one side of the toner cartridge body (1), and a gear end cover (12) is provided on the other side. A limiting sleeve (14) is integrally formed on the gear end cover (12) corresponding to the developing roller (3), and the limiting sleeve (14) is convexly arranged.

2. A novel TN920 toner cartridge according to claim 1, characterized in that: The toner cartridge body (1) is provided with mounting seats (6) on both sides of the powder outlet slot (51), the mounting seats (6) are provided with mounting holes (61), and the powder outlet knife (4) is provided with connecting holes (421) corresponding to the mounting holes (61).

3. A novel TN920 toner cartridge according to claim 1, characterized in that: The developing roller (3) comprises a roller body (31) and an iron core (32) which are coaxially arranged, and two ends of the iron core (32) extend out of the roller body (31) and are provided with connecting heads (33).

4. A novel TN920 toner cartridge according to claim 2, characterized in that: The powder discharge knife (4) comprises a knife portion (41) and connection blocks (42) arranged at two ends of the knife portion (41), and the connection hole (421) is arranged on the connection block (42).

5. A novel TN920 toner cartridge according to claim 3, characterized in that: The conductive end cover (11) is provided with a locking groove (15), the locking groove (15) is adapted to the connector (33), and a notch (151) is provided in communication with the locking groove (15).

6. A novel TN920 toner cartridge according to claim 1, characterized in that: The carbon powder bin (2) is provided with a powder adding port (7) on the conductive end cover (11), the powder adding port (7) is communicated with the carbon powder bin (2), the powder adding port (7) is connected with a powder adding cover (8), the powder adding cover (8) comprises an end cover portion (81) and a connecting portion (82), the connecting portion (82) is threadedly connected to the powder adding port (7), the diameter of the end cover portion (81) is larger than that of the connecting portion (82), the end cover portion (81) is provided with a rotating column (83), and the outer circumferential wall of the rotating column (83) is provided with a plurality of anti-slip grooves.

7. A novel TN920 toner cartridge according to claim 6, characterized in that: The end cover portion (81) is buckled with a cover body (84), the bottom of the cover body (84) is provided with a buckling cavity (841) adapted to the surface of the end cover portion (81), the cover body (84) is provided with a fastener (842), and the conductive end cover (11) is provided with an elastic buckle (111) adapted to the fastener (842).

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