PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS Russian patent published in 2018 - IPC G03G16/00 

Abstract RU 2663094 C2

FIELD: photography.

SUBSTANCE: present invention relates to process cartridge, which comprises an electrophotographic photosensitive drum and a developing roller, which acts on the electrophotographic photosensitive drum, configured to communicate with each other and move from each other, and to an electrophotographic image forming apparatus, in which such a process cartridge is installed and can be removed. Disclosed group of inventions includes process cartridges. Process cartridge comprises an electrophotographic photosensitive drum, a developing roller, configured to develop an electrostatic latent image, formed on an electrophotographic photosensitive drum, a drum frame supporting an electrophotographic photosensitive drum, a developing frame, supporting the developing roller and movable with respect to the drum frame, to move between a contact position, in which the developing roller is in contact with the electrophotographic photosensitive drum and a spaced position, in which the developing roller is located at a distance from the electrophotographic photosensitive drum, rotatable member, (i) including a abduction strength receiving portion, and (ii) rotatable about the pivot axis between a protruding position, in which the abduction strength receiving portion projects outwardly of the developing frame, and the pulled position, in which the abduction strength receiving portion is pulled from the protruding position towards the inside of the developing frame, wherein the abduction strength receiving portion is configured to receive an abduction strength, to move the developing frame from the contact position to the spaced position, when the rotatable member is in the protruding position, and a sliding element, slidable along the sliding direction, which is substantially parallel to the pivot axis, to apply a pivoting force to the rotatable member, to rotate the rotatable member from the pulled position to the protruding position.

EFFECT: technical result is creation of a smaller process cartridge, wherein electrophotographic photosensitive drum and developing roller can contact each other and move from each other, and a smaller image forming apparatus, in which process cartridge can be installed with possibility of retrieval, as well as in development of a process cartridge, wherein electrophotographic photosensitive drum and developing roller can contact each other and retract from each other, wherein during manipulations with process cartridge or when transporting process cartridge force-receiving portion is not damaged.

30 cl, 68 dwg

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RU 2 663 094 C2

Authors

Josimura Akira

Murayama Kazunari

Nittani Susumu

Numagami Atsusi

Dates

2018-08-01Published

2016-12-29Filed