Process cartridge and electrophotographic image forming apparatus
US8688003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Dec 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1839
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge is provided for detachably mounting to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum, a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, a drum frame supporting the electrophotographic photosensitive drum, a developing frame supporting the developing roller, the developing roller being movable between a contacting position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spacing position in which the developing roller is spaced from the electrophotographic photosensitive drum, a force receiving member capable of taking an operating position for moving the developing frame from the contacting position to the spacing position, and a stand-by position retracted from the operating position, an urging portion for urging the force receiving member, and an engaging portion for engaging with the force receiving member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.