Document feeder
US4933717A · kind A · utility
3Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Jan 5, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/6264
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A document feeder installed on an electrophotographic copying machine, and this document feeder having transport rollers driven by a drive unit to carry a document sheet. The document feeder comprises a flexible sheet having holes, and being installed over a platen glass. The document feeder also comprises document transport rollers which come into contact with a document sheet on the platen glass through the holes in the flexible sheet in order to carry the document sheet on the platen glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.