Transfer charger and image forming apparatus
US7783238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2009 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Sep 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a transfer charger which provides an intermediate transfer belt with a sufficient transfer efficiency, does not wear in contact with an inner surface of the intermediate transfer belt, has a low frictional property, and is excellent in its friction stability and an image-forming apparatus. A transfer charger (62) is mounted inside the image-forming apparatus where a toner image held on an image holder (12) is transferred to an intermediate transfer belt (31) to obtain an image. The transfer charger (62) makes a surface contact with an inner surface of the intermediate transfer belt (31), with the transfer charger (62) being pressed toward the image holder (12) owing to a pressing member (61). The transfer charger (62) is a sheet material consisting of a resin composition containing 100 parts by weight of non-injection-moldable ultra-high-molecular-weight polyethylene resin, 2 to 15 parts by weight of electrically conductive carbon, and 0.5 to 5 parts by weight of at least one powder selected from among PTFE resin powder, graphite powder, and silicone resin powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.