Image formation apparatus including guide member for transfer sheet
US7706734B2 · kind B2 · utility
6Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Feb 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a toner image formed on an intermediate transfer belt is transferred to a transfer sheet by a transfer electric field generated between a secondary transfer roller and a driving roller. A guide surface of a pre-transfer guide and a flat portion of the intermediate transfer belt form an angle of no less than 13° and no greater than 17°, and a distance from a tip of the guide surface and the flat portion is no less than 1.0 mm and no greater than 3.0 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.