Image forming apparatus
US4862212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Mar 2, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus allows an image carrier, a developing unit and a cleaning device each having a different service life to be detachably mounted in a housing thereof. The developing and cleaning devices are rotatably supported to constitute an image forming unit. The image forming unit is detachably supported by a first rotatable body which is mounted to the apparatus housing. The image carrier is detachably supported by opposite side plates of the apparatus housing or by a second rotatable body which is supported by the apparatus housing to be rotatable independently of the first rotatable body. A positioning arrangement is provided for controlling the rotation of the developing and cleaning devices so that the image forming unit and the image carrier may be prevented from interfering with each other when the unit is moved toward and away from the image carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.