Image forming apparatus controlling belt position in a perpendicular direction to a belt conveying direction
US8538284B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Aug 31, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00156
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus capable of improving the reliability of intermediate transfer belt shift control and attaining a high quality image. The image forming apparatus includes an intermediate transfer belt onto which a toner image is transferred and formed, a shift position detecting sensor that detects a shift position of the belt, a shift control roller that changes the shift position of the belt, and an angle adjustment cam and an angle adjustment arm that correct an inclination angle of the roller. An amount of correction for the inclination angle is calculated by an ASIC based on the belt shift position detected by the sensor. In a Kf multiplier and a Kr multiplier, coefficient values used for the calculation of the amount of correction for the inclination angle can variably be changed independently for respective directions of control for the roller inclination angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.