Recirculating document feeder
US5754934A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Oct 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00181
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A recirculating document feeder for use with an image forming machine having a transparent platen. This recirculating document feeder includes a document support disposed above the transparent platen and adapted to have a stack of documents placed thereon, with a selected side of each document facing down; a feed-out path extending from one end of the document support; a first switchback path having an upstream end connected to the downstream end of the feed-out path; a send-in path extending from its upstream end, which is connected to the upstream end of the first switchback path, to one end of the transparent platen; a send-out path extending from the other end of the transparent platen; a second switchback path having an upstream end connected to the downstream end of the send-out path; and a return path extending from its upstream end, which is connected to the upstream end of the second switchback path, to the other end of the document support. The bottom-most document of the document stack placed on the document support is fed out to the feed-out path, fed to the first switchback path through the feed-out path, and then sent onto the transparent platen through the send-in pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.