Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess
US6608980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Dec 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1654
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes: a cartridge frame; an electrophotographic photosensitive drum supported on the cartridge frame; a process device actable on the photosensitive drum; a cartridge drum positioning portion for positioning the photosensitive drum to the main assembly of the apparatus by engagement with a main assembly drum positioning portion provided in the main assembly of the apparatus when the process cartridge is mounted to the main assembly of the apparatus; and a cartridge frame positioning portion for positioning the cartridge frame to the main assembly of the apparatus by engagement with a main assembly frame positioning portion provided in the main assembly of the apparatus when the process cartridge is mounted to the main assembly of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.