Belt device and image forming apparatus
US8023872B2 · kind B2 · utility
5Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1623
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a belt device, a first detecting unit detects a widthwise displacement of a belt, and a correcting unit corrects displacement of the belt in the width direction during a period starting from turning power on and ending with completion of drive preparation of the belt based on the widthwise displacement. Moreover, a second detecting unit detects whether the belt has displaced in the width direction by an amount that is greater than a threshold, and a belt stopping unit stops running of the belt when the second detecting unit detects that the belt has displaced by an amount that is greater than the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.