Recirculating document feeder
US4699365A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | May 13, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/902
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recirculating document feeder for presenting document sheets to a copier apparatus for reproducing multiple collated sets of information respectively contained on one face of such document sheets, or information respectively contained on both faces of such sheets, at a rate which makes maximum use of the full reproduction rate of the copier apparatus. In the recirculating document feeder, during the first circulation of a set of document sheets, after both sides of each sheet are exposed to reproduce information contained thereon, such sheets are returned to the hopper with their facial orientation reversed with respect to their initial facial orientation in the hopper. During all during subsequent circulations of such document sheets except the last circulation, after both sides of each sheet are exposed to reproduce information contained thereon, such sheets are returned to the hopper with the facial orientation reversed with respect to their initial facial orientation in the hopper. During the last circulation, after both sides of each sheet are exposed to reproduce information contained thereon, such sheets are returned to the hopper with their facial orientation the same as …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.