Decurl device and image forming apparatus provided therewith
US7653340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jul 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00662
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A decurl device includes: a curl detecting section having a plurality of toothed wheels each which detects a curling amount and a curling direction of a sheet having a curl; and a plurality of uncurling sections each arranged downstream of the curl detecting section in a conveyance direction of the sheet having the curl, which uncurls the sheet by bending and transforming the sheet in a direction reverse to a curling direction thereof. One of the uncurling sections, which reduces the curl, is selected on the basis of the curling amount and the curling direction that have been detected by the curl detecting section, thereby uncurling the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.