Sheet feeding apparatus
US8201823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2557/50
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rotatable pick roller and a rotatable separating roller are formed integrally with a roller case. A retard roller opposes the separating roller and rotates in a direction opposite to that of the separating roller. A lift detecting sensor is mounted on the roller case. When a first sheet and second sheet that are stapled together are accidentally placed on a sheet table, the pick roller picks-up the first sheet and feed it in the gap between the retard roller and the separating roller, the second sheet abuts with the retard roller so that a portion of the first sheet and the second sheet gets lifted. The lift detecting sensor detects the lifted portion and stops rotations of the rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.