Curl correcting unit and image forming apparatus
US6259888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Dec 7, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00662
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A curl correcting unit in which plural curl correcting sections are sequentially arranged in a sheet transporting direction enhances curl correction in a direction to lower edge portions of a sheet. The curl correcting unit which performs curl correction on a sheet on which an image is formed by an image forming apparatus, has a first curl correcting device for applying pressure to the sheet and performing curl correction in a direction to raise the edge portions of the sheet, and a second curl correcting device for applying pressure to the sheet and performing curl correction in a direction to lower the edge portions of the sheet, the second curl correcting device being positioned downstream of a sheet transporting path with respect to the first curl correcting device, the pressure of the second curl correcting device being applied to the sheet at all times during at least transportation of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.