Tandem intermediate-transfer type image forming apparatus
US7636539B2 · kind B2 · utility
3Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2006 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Jul 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming unit includes four photoconductors, a belt extended around a driving roller and an extension-cum-primary transfer roller. Three primary transfer rollers sandwich the belt in association with a corresponding photoconductor. The extension-cum-primary transfer roller serves both as an extension roller and a primary transfer roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.