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Developing box

A technology of a developing cartridge and a counting device, which is applied in the field of developing cartridges, can solve the problems such as the wear of the dial and the guide rail, and the inability to realize the counting function of the counting gear.

Pending Publication Date: 2021-06-01
中山市鸿芃泰塑胶模具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As mentioned above, during the counting process, the guide block needs to be precisely matched with the guide track. At the same time, after the counting is completed, the guide block and the guide track need to be just out of contact. The dial block and guide track may be worn, which will cause the counting function of the counting gear to fail

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a perspective view of the developing cartridge involved in Embodiment 1 of the present invention; figure 2 It is an exploded schematic diagram of the counting device in the developing cartridge according to the first embodiment of the present invention, image 3 It is a perspective view of the counting gear in the counting device according to the first embodiment of the present invention.

[0033] The developing cartridge 1 can be installed along the mounting direction A toward the laser printer provided with the lever, and can be taken out along the opposite direction of the mounting direction A. The developing cartridge 1 includes a housing 2 and a developing roller located in the housing 2 3. The end cover 6 installed on the casing 2, the power receiving part 5 and the counting device 4 at the longitudinal end of the casing, the casing 2 is used to accommodate the toner, and the developing roller 3 is rotatably installed, and can The toner is suppli...

Embodiment 2

[0047] Image 6 It is an exploded schematic diagram of the counting device in the developing box according to the second embodiment of the present invention; Figure 7 It is a perspective view of the counting gear in the counting device according to the second embodiment of the present invention.

[0048] In the present embodiment, the counting device 4 includes a counting gear 41 having a toothed portion 41a and a toothless portion 41b, a dial 42 extending from the upper surface 41c of the counting gear 41 in a direction away from the casing 2, and a gear body and a casing. The elastic member 45 between the bodies 2; similarly, the end cover 6 is also provided with the first through hole 62, the second through hole 63, the first protruding plate 62a and the second protruding plate 63a, a part of the counting device 4 and A part of the power receiver 5 is exposed from the first through hole 62 and the second through hole 63, respectively, such as Image 6 As shown, the end c...

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PUM

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Abstract

The invention relates to a developing box detachably mounted in a laser printer with a deflector rod. The developing box comprises a shell, a power receiving part and a counting device which are located at the longitudinal tail end of the shell, and an end cover arranged on the same side as the counting device, wherein the power receiving part is used for receiving driving force and driving the counting device to work; and the counting device comprises a driven part used for receiving driving force and a shifting block connected with the driven part, the shifting block interacts with the shifting rod along with rotation of the driven part, the counting device further comprises a holding part combined with the shifting block, and in the working process of the counting device, the shifting block is held by the holding part at the protruding position protruding out of the outer surface of the end cover. Even if the developing box is used for many times, the counting device can still work stably.

Description

technical field [0001] The present invention relates to a developing cartridge for a laser printer. Background technique [0002] As is well known, the developing cartridge includes a counting device for contacting and disengaging a lever provided in the laser printer. During the process of installing the developing cartridge to the laser printer, the laser printer learns the developing cartridge through the interaction between the counting device and the lever. related information. [0003] An existing counting device includes a counting gear, a dial block and a guide block respectively located on both sides of the counting gear, and an elastic member combined with the counting gear. Correspondingly, a developing cartridge housing is provided with a guide block for guiding the guide block. The guide track has a non-closed shape along the circumferential direction of the counting gear, and the guide track includes a rising section and a holding section connected with the ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08
CPCG03G15/0896
Inventor 黄定飞
Owner 中山市鸿芃泰塑胶模具科技有限公司