PROCESS CARTRIDGE, MOUNTABLE TO AN IMAGE FORMING APPARATUS, HAVING FIRST CONTACT PORTION TO BE GUIDED BY A GUIDE WHEN MOUNTED AND SECOND CONTACT PORTION TO LIMIT CARTRIDGE ROTATION OR MOVEMENT WHEN MOUNTED, AND IMAGE FORMING APPARATUS MOUNTING SUCH A PROCESS CARTRIDGE
US6937832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Apr 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1884
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge is detachably mountable to a main assembly of an electrophotographic. The cartridge includes a photosensitive drum; a process device; and a first contact portion provided on a bottom surface of a cartridge frame provided at one longitudinal. The first contact portion is guided by a first assembly side guide when the cartridge is mounted. The cartridge also includes a cartridge coupling disposed above the first portion, the coupling being engageable with an assembly side coupling to receive a rotational force from the assembly; and a second contact portion disposed behind the first portion with respect to the mounting direction. The second portion limits rotation of the cartridge. The cartridge also includes; a positioning portion projected outwardly and provided at the other longitudinal end of the drum, the positioning portion being guided by a second assembly side guide, and being positioned to a second assembly side receiving portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.