Sheet feeding device and image forming apparatus incorporating same
US8474811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2012 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2553/61
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feeding device includes a sheet carrying unit, an attraction separation device electrostatically attracting and separating an uppermost sheet from a sheet stack and including multiple rollers, an endless dielectric belt stretched over the multiple rollers, and an elastic member provided inside a loop of the belt to cause the endless dielectric belt to contact the uppermost sheet, a sheet conveying device, and a lifting and lowering device. The lifting and lowering device lifts the sheet stack to a lift position at which the uppermost sheet contacts with the attraction separation device, and the attraction separation device stands by for a predetermined time to attract the uppermost sheet and starts to convey the uppermost sheet after the predetermined time elapses in a state in which the sheet stack remains at the lift position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.