Counting component and developing cartridge

Abstract

The present invention relates to a counting component and a developing cartridge. The counting component is configured to be coupled with an external counted member, the counting component comprises adriving member, a middle member and a counting member; the driving member is configured to receive the driving force, the middle member rotates under the driving of the driving member, the middle member is further in contact with the counting member, and the counting member is in contact with and out of contact with the counted member; the counting member comprises the counting member body and afirst touch portion and a second touch portion disposed on the counting member body, the rotation center of the counting member is P, the line connecting the vertex F of the first touch portion and the vertex E of the second touch portion does not pass through the rotation center P.

Description

technical field [0001] The present invention relates to the field of electrophotographic imaging, in particular to a developing cartridge detachably mounted to an electrophotographic imaging device, which can be combined with another drum cartridge detachably mounted to an electrophotographic imaging device, and together in Working in electrophotographic imaging devices. Background technique [0002] The developing cartridge is one of the consumables necessary for the operation of electrophotographic imaging equipment (hereinafter referred to as "equipment"). Using the principle of photoelectric imaging, the developer contained in the developing cartridge develops the electrostatic latent image formed on the photosensitive member, and then Transfer to the imaging medium, when the developer is exhausted, the device will prompt the end user to replace the developing cartridge. [0003] In order to accurately understand the amount of developer in the developer cartridge, one o...

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Problems solved by technology

[0004] The above-mentioned second method is completely realized by mechanical means. Compared with the first method, its cost is lower. However, the existing counting assembly structure includes a plurality of gears that mesh with each other. Before the counting assembly starts counting, use The gears used for counting and the gears used to transmit the driving force are kept meshed with each other. If the developing cartridge is squeezed or bumped by external force during transportation, the meshing gears are easily broken, which will cause the final counting of the developing cartridge to fail.

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