Color image forming apparatus
US5220379A · kind A · utility
11Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jul 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1896
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus in which a process cartridge contains at least an image carrying member, a developing unit and a developer replenishment unit. The process cartridge can be mounted to or removed from the apparatus for its replacement. The process cartridge can take a first position where images can be formed and a second position where developer can be replenished. The process cartridge can be moved from the first position to the second position when a detector for detecting the depletion of the developer outputs a detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.