Document registration utilizing retractable transparent member beneath platen
US5081497A · kind A · utility
3Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Feb 13, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/605
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A document registration guide as provided by mounting a retractable pattern bearing substrate beneath a glass document platen. The substrate operates in the manner of a window shade, presenting a plurality of document outlines which are visible to an operator during a pre-copy state. The operator can select the appropriate document outline pattern, and position the document to be exposed along the outline ensuring the required and proper registration for that document. At start of scan, the substrate is retracted out of the document exposure area and is returned to its initial position at the end of the copying cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.