Method for printing individual sheets according to the duplex method
US6647239B2 · kind B2 · utility
6Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0103
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printer or copier and method for its operation includes two printing units in the paper path. The paper path is formed into two adjoining loops or rings and shunts are provided at intersections to selectively redirect the paper to permit single sided or double sided printing, printing in different colors or re-supplying the paper to a printing unit for a second pass. Papers can be turned over by selective control of the shunts and the conveying directions in the paper paths. Spacing of the sheets if controlled and pre-printed sheets may be selectively brought in to the paper flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.