Image forming apparatus having a sheet reversing device
US6445903B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Feb 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a length of a transporting passage between an induction roller pair and a reversal roller pair and a length of a transporting passage between the reversal roller pair and a feed roller pair are respectively set smaller than the smallest length in the transporting direction of a sheet used in an image forming apparatus. A time till the rotation of the reversal roller pair is switched to the forward rotation after a rear end of the sheet having a length in the transporting passage of 8.5 inch after reversal has passed through the reversal roller pair can be set shorter than a time when a leading end of a succeeding sheet inducted into a pull-in passage reaches the reversal roller pair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.