Sheet feeding device and electrophotographic image forming apparatus with rotating charged belt
US8157257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2010 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00396
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feeding device incorporable in an image forming apparatus includes a sheet holder to hold a stack of sheets including an uppermost sheet, an endless belt, a charging member, a belt supporting unit including a drive roller and a driven roller, a moving mechanism to move the sheet holder, and a controller. The controller alternately controls the moving mechanism to move the sheet holder to a proximal position, the endless belt to contact the uppermost sheet held on the sheet holder, and the driven roller to rotate about the drive roller, to attract the uppermost sheet, and controls the moving mechanism to move the sheet holder to a distal position, the driven roller to rotate about the drive roller, and the endless belt to incline at a predetermined angle of separation, to separate the uppermost sheet from the multiple sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.