Electrophotographic image forming apparatus
US5974288A · kind A · utility
76Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Oct 22, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge includes a toner frame and a developing frame joined together without damaging seal members and so that toner leakage due to damage of the seal members can be prevented. The invention also relates to an electrophotographic image forming apparatus to which such a process cartridge can detachably be mounted. Inner corners of opposed portions of ridges and grooves, provided on joint surfaces of the developing frame and the toner frame where a seal member for sealing an opening formed by fitting the ridges and the grooves together, are provided with parallel inclined surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.