Paper feeder, image forming apparatus provided with the same and paper feeding method
US7950649B2 · kind B2 · utility
3Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2008 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | May 21, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
When two or more sheets of paper P are fed in an overlapped manner to a nip where a paper feed roller and a separation roller are in pressure contact with each other, a sub-CPU of a sheet feeding unit rotates the paper feed roller in a paper feeding direction and rotates the separation roller in a direction opposite to the feeding direction, so as to separate overlapping, and thereafter, it rotates the paper feed roller and the separation roller again in the feeding direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.