Image forming apparatus having a plurality of developing means around an image carrier
US6842598B2 · kind B2 · utility
7Cited by
12References
66Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2003 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0106
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus of the present invention includes two developing units each including two developing rollers facing a particular photoconductive drum and rotatable about respective axis parallel to the axis of the drum. Each developing unit is supported by a respective image forming unit and angularly movable about an axis substantially parallel to the axis of the drum. When each developing unit is angularly moved by a preselected angle, a gap for development is established between one of the developing rollers and the associated drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.