Electrophotographic image forming apparatus having replaceable optical unit
US4912563A · kind A · utility
34Cited by
8References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus forms an image described by an input image information on a recording sheet by electrophotography. An optical unit of the image forming apparatus is replaceable while maintaining an accurate positional relationship with a photosensitive unit when the optical unit is set in the image forming apparatus. The optical unit is automatically and accurately positioned three-dimensionally with respect to the photosensitive unit when the optical unit is set in the image forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.