Process cartridge and assemblying method therefor
US7027756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/181
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge, detachably mountable to a main assembly of an electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a developer accommodating portion; a developing roller for developing a latent image formed on the drum using the developer accommodated in the accommodating portion; a developer supply roller; a developing device frame supporting the developing roller and the developer supply roller and having the developer accommodating portion; a first gear having a driving force receiving gear portion which is engaged with a main assembly gear when the process cartridge is mounted to the main assembly; a second gear provided inside the driving force receiving gear portion in a longitudinal direction of the developing device frame and being effective to transmit the driving force received by the first gear to the developer supply roller; and a supporting member, disposed between the first gear and the second gear with respect to the longitudinal direction of the developing device frame, for supporting the second gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.