Collating document feeder with multiple feed detector
US4076408A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1976 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Mar 30, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A collating document feeder with a multiple-feed detector for use on a convenience copier. The feeder circulates the document sheets one-after-another for presentation to the copier once, and recirculates the sheets one-after-another for presentation to the copier again, thereby to present the sheets for copying in an order that facilitates collation of the final copies. The multiple-feed detector compares the number of presentations during circulation with the number of presentations during recirculation, to detect the occurrence of multiple feeds. The number of presentations can be determined, for example, by counting the number of exposures, or the number of times document sheets are fed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.