DEVELOPER CARTRIDGE

Abstract

A developer cartridge is provided, which includes a toner cartridge, a developer stifling device located in the toner cartridge, a supply roller for supplying a developer to a developer roller, a developer roller for developing an electrostatic latent image on a photoconductor, and a power receptor for driving only one of gear sets of the above means to receive a power. The power receptor is rotatably fixed at two or more predetermined positions. An initial position of the power receptor is a power receiving position. A power receptor moving device includes a press block, a baffle block, a spring, and a torsion spring. The power receptor moving device is controlled by the press block. When the press block of the power receptor moving device is pressed downwards, the power receptor is rotated to another power receiving position due to the action of the torsion spring. The present invention is applicable to various types of machines.

Claims

1-9. (canceled)

10. A developer cartridge, comprising: a toner cartridge having a roller; a power receptor receiving a power input to drive the roller, wherein the power receptor is rotatable between a first position and a second position, the developer cartridge further comprising a torsion spring, said power receptor is moved to the second position from the first position by the elastic force of the torsion spring.

11. The developer cartridge according to claim 10, wherein the developer cartridge further comprises a rotatable device, the rotatable device comprises the power receptor and a power transmitting part, the power transmitting part receives the power from the power receptor to drive the roller.

12. The developer cartridge according to claim 10, wherein the developer cartridge further comprise a side plate and a baffling plate, the power receptor is arranged at the side plate, and the baffling plate covers the side plate.

13. The developer cartridge according to claim 12, wherein the side plate partially covers the power receptor.

14. The developer cartridge according to claim 12, wherein the baffling plate partially covers the side plate.

15. The developer cartridge according to claim 12, wherein one end of the torsion spring is placed at the side plate, the other end is placed at a baffling plate.

16. The developer cartridge according to claim 12, wherein the power receptor is at the first position by an outside force; when the outside force is removed, the torsion spring supplies an elastic force to move the power receptor to the second position.

17. The developer cartridge according to claim 12, wherein the power receptor is provided at one side of the roller.

18. The developer cartridge according to claim 17, wherein the power receptor transmits the power to the roller is indirect and at least two intermediate transmitting parts is arranged between the power receptor and the roller.

19. The developer cartridge according to claim 12, wherein the roller is a developer roller.

20. An image forming apparatus comprising: a developer cartridge comprising a toner cartridge having a roller; a power receptor receiving a power input to drive the roller, wherein the power receptor is rotatable between a first position and a second position, the developer cartridge further comprising a torsion spring, said power receptor is moved to the second position from the first position by the elastic force of the torsion spring.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein:

[0014] FIG. 1 is an assembly view of a power receptor of the present invention at a first driving position;

[0015] FIG. 2 is a partial cross-sectional view of the power receptor of the present invention at the first driving position;

[0016] FIG. 3 is a cross-sectional side view of FIG. 2;

[0017] FIG. 4 is an assembly view of the power receptor of the present invention at a second driving position;

[0018] FIG. 5 is a partial cross-sectional view of the power receptor of the present invention at the second driving position; and

[0019] FIG. 6 is a cross-sectional side view of FIG. 5.

DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, a developer cartridge according to an embodiment of the present invention is described with reference to FIGS. 1 to 6.

[0021] As shown in FIG. 1, a power receptor 1 is at an initial position, which is a power receiving position. The power receptor and a gear 2 are integrated together, and the gear 2 rotates around a shaft secured on a side plate 6. The gear 2 and a gear 3 are oppositely fixed by side plates 6, 7. When the developer cartridge is installed into an image forming apparatus, the power receptor 1 receives a power and drives the gear 2 to rotate, the gear 2 is engaged with the gear 3, and the gear 3 is secured to a gear 4, thus the power is transmitted through the gear 4 in sequence, thereby driving the rotation means of a developing device to rotate.

[0022] As shown in FIGS. 2 and 3, in the present invention, a power receptor moving device includes a press block 5, a baffle block 8, and a spring 9. The press block 5 contacts an upper portion 81 of the baffle block 8 through a wedge-shaped surface. When the power receptor 1 is at the initial position shown in the figures, a right portion 82 of the baffle block 8 is located in a depression 10 formed on the side plate 7, such that the gear 2 and the power receptor 1 are fixed at the initial position, and at this time, the spring 9 is in a stretched state

[0023] As shown in FIGS. 4, 5, and 6, when it intends to place the power receptor 2 at a second driving position shown in the figures, the press block 5 is pressed downwards in a direction shown by arrows, such that the press block 5 acts on the upper portion 81 of the baffle block through the wedge-shaped surface to make the spring 9 contracted. At the same time, the baffle block 8 is moved and reacted in an arrow direction, and the right portion 82 retreats out of the depression 10. A torsion spring 11 is located on the side plate 6, and has one end placed in a hole of the side plate 6 and the other end leaned against an inner bottom of a baffling plate 12. When the right portion 82 of the baffle block 8 retreats out of the depression 10, an elastic force of the torsion spring 11 acts on the side plate 6, such that the power receptor 1 is rotated to the second driving position, thus completing the operation.