Sheet conveying device and image forming apparatus
US8126387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fluctuation detecting unit detects a fluctuation of an endless belt generated when a sheet is brought into contact with a predetermined position of the endless belt at an upstream side in a conveying direction from a nip portion based on fluctuation information acquired by a fluctuation information acquiring unit. An entry timing estimating unit estimates entry timing of the sheet into the nip portion based on a detection of the fluctuation. A correction control unit corrects a speed fluctuation of the endless belt generated when the sheet enters the nip portion by performing a feedforward control of a first driving unit based on the entry timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.