Automatic sheet feeder for an image recording apparatus
US5029840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Aug 23, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/5261
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic sheet feeder for feeding paper sheets one by one toward a body of an image recording apparatus has a feed roller and lap feed preventing device for preventing two or more paper sheets from being fed together. The lap feed preventing device is implemented as a reverse roller which is pressed against the feed roller and provided with a circumferential recess in a predetermined position thereof. When paper sheets each being formed with three holes for filing at spaced locations along the width thereof are used with the sheet feeder, the circumferential recess of the reverse roller coincides with the intermediate hole of each paper sheet being fed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.