CN110531597A - Cartridge - Google Patents

Abstract

The present invention provides a toner box, comprising: a box body, the box body has a toner cavity for accommodating carbon powder; a developing roller, the developing roller is rotatably supported around its own axis between two end walls of the box body, and the developing roller includes The developing roller shaft supported on the two end walls of the box body; the powder feeding roller, the powder feeding roller is rotatably supported between the two end walls of the box body, and the powder feeding roller includes the powder feeding roller supported on the two end walls of the box body roller shaft; conductive contact piece, the conductive contact piece is positioned at the outer side of an end wall of the box body; the conductive contact piece has an electrical contact portion, a first output portion and a second output portion, and the electrical contact portion is used to communicate with one of the imaging equipment The output electrical contacts are in contact, the first output part is in contact with one end of the developing roller shaft, and the second output part is in contact with one end of the powder feeding roller shaft; the conductive contact piece is integrally formed. The toner is transferred stably from the powder feeding roller to the developing roller, the toner on the toner cartridge is more uniform, and the printing quality is stable. The toner cartridge has few parts, simple structure, few assembly processes and low cost.

Description

Toner cartridge

technical field

The invention relates to the technical field of printing consumables, in particular to a toner cartridge detachably installed in an imaging device.

Background technique

Electrophotographic imaging equipment, such as laser printers, is a device that uses the principle of electrophotography to form an image on an image forming medium such as paper through processes such as charging, exposure, development, transfer, fixing, and cleaning. Imaging devices typically provide toner using a toner cartridge that is removably mounted therein. In addition to containing carbon powder, the toner cartridge is usually integrated with developing components such as a developing roller, a powder feeding roller, and a powder outlet knife. The thickness of the toner layer on the developing roller is adjusted, and the developing roller uses the toner carried on it to develop the electrostatic latent image on the photosensitive element. During the development process, the developing roller, powder feeding roller, etc. generally need to be energized so that the toner can be charged with the required charge.

Referring to FIG. 1, FIG. 1 shows a conventional toner cartridge 1 that can be detachably installed in an imaging device, and has a box body 11, a powder feeding roller (not shown), a developing roller 12, and a first conductive member 13. and the second conductive member 14, the first conductive member 13 is respectively connected to the end of the rotating shaft of the developing roller power supply contact 2 and the developing roller 12 of the imaging device, and the second conductive member 14 is respectively connected to the powder feeding roller power supply contact of the imaging device 3 and the end of the rotating shaft of the powder feeding roller, the first conductive member 13 and the second conductive member 14 are set apart from each other. Since the conductive parts are separated from each other and connected to the developing components respectively, the conductive end of the toner cartridge 1 has many parts and has a complicated structure, so that there are many procedures during assembly, and the cost of the toner cartridge 1 is relatively high. . Moreover, a plurality of conductive contacts that are separated from each other may cause the uneven voltage receiving the imaging device, causing the carbon powder on the toner cartridge 1 to be powdered unevenly when it is transferred from the powder chamber to the developing roller 12 and the photosensitive drum, thereby cause poor printing.

Contents of the invention

In order to solve the above problems, the main purpose of the present invention is to provide a toner cartridge with simple structure, less assembly process, low cost and good working stability.

In order to achieve the above-mentioned main purpose, the present invention provides a toner cartridge, comprising: a box body, the box body has a toner cavity for accommodating carbon powder; a developing roller, the developing roller is rotatably supported on both ends of the box body around its own axis Between the walls, the developing roller includes a developing roller shaft supported on both ends of the box body; the powder feeding roller, the powder feeding roller is supported between the two end walls of the box body rotatably around its own axis, and the powder feeding roller includes a support on the box body The powder-feeding roller shaft on the two end walls of the box body; the conductive contact piece, the conductive contact piece is located outside one end wall of the box body; the conductive contact piece has an electrical contact portion, a first output portion and a second output portion, and the electrical contact portion It is used to contact with an output electrical contact of the imaging device, the first output part is in contact with one end of the developing roller shaft, and the second output part is in contact with one end of the powder feeding roller shaft; the conductive contact piece is integrally formed.

It can be seen from the above scheme that the electrical contact portion of the conductive contact is in contact with an output electrical contact of the imaging device, and the voltage output by the output electrical contact is transmitted to the developing roller shaft through the first output portion of the conductive contact, and at the same time the output voltage is The voltage output by the contact is transmitted to the powder feeding roller shaft through the second output part of the conductive contact. Due to the certain resistance in the conductive contact, after the input voltage of the imaging device passes through the conductive contact of the toner cartridge, the voltage transmitted to the developing roller shaft and the powder feeding roller shaft is between the maximum charged voltage and the minimum charged voltage, realizing The toner is transferred stably from the powder feeding roller to the developing roller, which makes the toner on the toner cartridge more uniform and the printing quality is stable. Moreover, the conductive contact piece is integrally formed, and there is no need to provide electrical contacts and connectors that are respectively connected and separated for each developing member, so that the parts of the toner cartridge are reduced, so that the structure of the toner cartridge is simple, and the assembly process is less and less expensive. The cost is lower.

A further solution is that the conductive contact piece is made of conductive plastic.

A further solution is that the first output part holds the developing roller shaft in a rotatable manner.

A further solution is that the first output part is arranged in the shape of a blind hole, the first output part is sleeved on the developing roller shaft, and the first output part contacts the circumferential surface of the developing roller shaft to improve the stability of electrical contact.

A further solution is that the toner cartridge further includes a spring, and the spring abuts between the first output portion and an axial end surface of the developing roller shaft to improve the stability of the electrical contact.

A further solution is that the second output part holds the powder feeding roller shaft in a rotatable manner.

A further solution is that the second output part is arranged in the shape of a blind hole, the second output part is sleeved on the powder feeding roller shaft, and the second output part contacts the circumferential surface of the powder feeding roller shaft to improve the stability of electrical contact.

A further solution is that the conductive contact piece also includes a first buckle part, the first buckle part extends along the axial direction of the box body, and the box body is provided with a boss protruding perpendicularly to its axial direction, and the first buckle part hooks On the boss, it is used to limit the position of the conductive contact piece in the axial direction of the box body, so as to improve the working stability.

A further solution is that the conductive contact piece also includes a second buckle part, the second buckle part extends along the axial direction of the box body, the end wall of the box body is provided with a through hole in the axial direction, and the second buckle part passes through the through hole. The hole is hooked on the side of the end wall of the box body away from the conductive contact piece, which is used to limit the position of the conductive contact piece in the axial direction of the box body and improve the working stability.

A further solution is that the first buckle part is disposed adjacent to the second output part, and the second buckle part is disposed adjacent to the first output part, so as to improve working reliability.

Description of drawings

Fig. 1 is a structural diagram of a conventional toner cartridge.

Fig. 2 is a structural diagram of an embodiment of the toner cartridge of the present invention.

Fig. 3 is a partially exploded view of an embodiment of the toner cartridge of the present invention.

Fig. 4 is a structural view of the conductive contact in the embodiment of the toner cartridge of the present invention from a first perspective.

Fig. 5 is a structural view of the conductive contact in the embodiment of the toner cartridge of the present invention from a second perspective.

Fig. 6 is a partial structural view of the first viewing angle of the embodiment of the toner cartridge of the present invention.

Fig. 7 is a partial structural view of the second viewing angle of the embodiment of the toner cartridge of the present invention.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Detailed ways

2 to 7, the toner cartridge 4 includes a box body 41, a developing roller 42, a powder feeding roller and a conductive contact piece 43. The box body 41 has a toner cavity for accommodating carbon powder. The conductive contact piece 43 is located at the bottom of the box body 41. outside of one end wall. The developing roller 42 is rotatably supported between the two end walls of the box body 41 , and the developing roller 42 includes a developing roller shaft 421 supported on the two end walls of the box body 41 . The powder feeding roller is rotatably supported between the two end walls of the box body 41 , and the powder feeding roller includes a powder feeding roller shaft 461 supported on the two end walls of the box body.

Referring to Fig. 4 and Fig. 5, the conductive contact piece 43 of this embodiment is made of conductive plastic integrally formed. part 435 and the second buckle part 434, the electrical contact part 431 is used to contact with an output electrical contact of the imaging device, the first output part 432 is in contact with one end of the developing roller shaft 421, and the second output part 433 is in contact with the sending One end of the powder roller shaft 461 is in contact. Specifically, the first output part 432 is arranged in the shape of a blind hole, the first output part 432 is sleeved on the developing roller shaft 421, and holds the developing roller shaft 421 in a rotatable manner, so that the first output part 432 and the developing roller shaft 421 peripheral surface contact. The second output part 433 is also arranged in the shape of a blind hole. The second output part 433 is sleeved on the powder feeding roller shaft 461, and holds the powder feeding roller shaft 461 in a rotatable manner, so that the second output part 433 and the powder feeding roller shaft The circumferential surface of 461 is in contact.

Another embodiment in which the first output portion 432 is in contact with one end of the developing roller shaft 421 is that the toner cartridge 4 further includes a spring 44 abutting between the first output portion 432 and the one-axis end surface of the developing roller shaft 421 , at this time, the first output portion 432 may not be in direct contact with one end of the developing roller shaft 421 , or may be in direct contact with one end of the developing roller shaft 421 . Specifically, the first output part 432 is arranged in the shape of a blind hole, and a fixing column 437 is arranged in the blind hole, and the spring 44 is located in the blind hole so as to be sleeved on the fixing column 437, and the spring 44 abuts against the bottom surface of the blind hole. and one axial end surface of the developing roller shaft 421 . When the first output part 432 is not in direct contact with one end of the developing roller shaft 421, that is, the first output part 432 is not sleeved on the developing roller shaft 421, so that the voltage is transmitted to the developing device through the first output part 432 and through the spring 44. Roller shaft 421. When the first output part 432 is in direct contact with one end of the developing roller shaft 421, that is, the first output part 432 is sleeved on the developing roller shaft 421 to hold the developing roller shaft 421 in a rotatable manner, so that the first output part 432 is in contact with the developing roller shaft 421. The circumferential surface of the developing roller shaft 421 is in contact, while the first output portion 432 is also in contact with the shaft end surface of the developing roller shaft 421 through the spring 44 .

The first buckle part 435 extends along the axial direction of the box body 41, and the box body 41 is provided with a boss 413 protruding perpendicularly to its axial direction. The first buckle part 435 is hooked on the boss 413 to limit the conductive contact 43 is the axial position of the box body 41. The second buckle part 434 extends along the axial direction of the box body 41, and the end wall of the box body 41 is provided with a through hole 411 in the axial direction. The side surface of the conductive contact piece 43 is also used to limit the position of the conductive contact piece 43 in the axial direction of the box body 41 . In this embodiment, the first locking portion 435 is disposed adjacent to the second output portion 433 , and the second locking portion 434 is disposed adjacent to the first output portion 432 . The conductive contact piece 43 is provided with an opening 436 in the axial direction of the box body 41. The opening 436 is sleeved on the mounting column 412 of the end wall of the box body 41, and the conductive contact piece 43 is fixed by the cooperation of the screw 45 and the mounting column 412. It is fixed on the end wall of the box body 41.

When the toner cartridge 4 of this embodiment is installed on the imaging device, the electrical contact portion 431 of the conductive contact 43 is in contact with an output electrical contact of the imaging device, and the electrical contact portion 431 of the conductive contact 43 of this embodiment It is in contact with the developing roller power supply contact 2 of the imaging device, and the voltage output by the developing roller power supply contact 2 is transmitted to the developing roller shaft 421 through the first output part 432 of the conductive contact 43, and at the same time, the voltage output by the developing roller power supply contact 2 is passed through The second output portion 433 of the conductive contact 43 is delivered to the powder feeding roller 461 . Since the conductive contact 43 has a certain resistance, after the input voltage of the imaging device passes through the conductive contact 43 of the toner cartridge 4, the voltage transmitted to the developing roller shaft 421 and the powder feeding roller shaft 461 is between the maximum charging voltage and the minimum charging voltage. Between the voltages, the carbon powder can be stably transferred from the powder feeding roller to the developing roller 42, so that the powder on the toner cartridge 4 is more uniform, and the printing quality is stable. Moreover, the conductive contact piece 43 is integrally formed, and there is no need to provide electrical contacts and connectors that are respectively connected and separated for each developing member, so that the parts of the toner cartridge 4 are reduced, so that the structure of the toner cartridge 4 is simple and easy to assemble. The process is less and the cost is lower.

The above embodiments are only preferred examples of the present invention, and are not intended to limit the scope of the present invention, so all equivalent changes or modifications made according to the structure, features and principles of the patent scope of the present invention should be included in the patent of the present invention. within the scope of the application.

Claims (10)

1. cartridge, comprising:

Box body, the box body have the carbon dust chamber for accommodating carbon dust；

Developer roll, the developer roll can be rotatably supported between the end walls of the box body around own axes, the developer roll Developing roller shaft including being supported on the box body end walls；

Powder feeding roller, the powder feeding roller can be rotatably supported between the end walls of the box body around own axes, the powder feeding roller Powder feeding roll shaft including being supported on the box body end walls；

It is characterized in that, the cartridge further include:

Conductive contact piece, the conductive contact piece are located on the outside of an end wall of the box body；

The conductive contact piece has contact portion, the first output section and the second output section, and the contact portion uses In with imaging device output contact, the end thereof contacts of first output section and the developing roller shaft are described The end thereof contacts of second output section and the powder feeding roll shaft；

The conductive contact piece is integrally formed.

2. cartridge according to claim 1, it is characterised in that:

The conductive contact piece is made of conductive plastic.

3. cartridge according to claim 2, it is characterised in that:

First output section rotatably keeps the developing roller shaft.

4. cartridge according to claim 3, it is characterised in that:

First output section is arranged in blind hole shape, and first output section is socketed in the developing roller shaft.

5. cartridge according to claim 2, it is characterised in that:

The cartridge further includes spring, and the spring is connected to an axial end of first output section and the developing roller shaft Between.

6. cartridge according to claim 2, it is characterised in that:

Second output section rotatably keeps the powder feeding roll shaft.

7. cartridge according to claim 6, it is characterised in that:

Second output section is arranged in blind hole shape, and second output section is socketed on the powder feeding roll shaft.

8. cartridge according to any one of claims 1 to 7, it is characterised in that:

The conductive contact piece further includes the first clamping part, and first clamping part is axially extending along the box body, the box body It is provided with boss axially projectingly in vertical its, first clamping part hooks together on the boss.

9. cartridge according to claim 8, it is characterised in that:

The conductive contact piece further includes the second clamping part, and second clamping part is axially extending along the box body, the box body End wall axially offers through-hole, and second clamping part passes through the through-hole and hooks together in the cartridge housing end wall far from described On the side of conductive contact piece.

10. cartridge according to claim 9, it is characterised in that:

The adjacent second output section setting of first clamping part, adjacent first output section of second clamping part is set It sets.