Image forming apparatus with dynamic characteristic calculation
US8175474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jul 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1661
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an image forming apparatus that accurately obtains the dynamic characteristic of the apparatus when a foreign substance is adhered to a driving roller for driving an endless belt, such as a facing roller. To accomplish this, the image forming apparatus uses an optical sensor to detect information of a foreign substance on the facing roller. When it is determined that there is no foreign substance information, the image forming apparatus executes profile detection of an intermediate transfer belt using the nominal circumference of the facing roller. When the optical sensor detects foreign substance information, the image forming apparatus measures the circumference of the facing roller, and performs profile detection of the intermediate transfer belt using the measured circumference of the facing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.