Image scanning apparatus that scans both sides of an input sheet
US7511864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2004 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Nov 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/2032
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document handler, such as used in a digital copier, includes an input tray and an output tray, connected by a paper path. Along the paper path are disposed two scan heads, one to record image data from each side of the sheet. The two scan heads are separated from each other along the paper path by a pitch length longer than a sheet to be scanned. The arrangement allows an image on each side of the sheet to be scanned at an exclusive time. For long sheets, a recirculation path, associated with the paper path, is used to allow the sheet to re-enter the paper path: in this way, one side of the sheet is scanned with one scan head, and then the other side is scanned with the other scan head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.