Image forming apparatus capable of correcting a rotation speed of an image carrier
US7587157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2007 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Jun 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a latent image carrier having a moving surface on which a latent image is formed, a drive control mechanism to control a drive of the latent image carrier so as to match a rotation angular speed of the latent image carrier with a target rotation angular speed thereof, a surface moving member having a moving surface on which an adjustment pattern for use in controlling the drive of the latent image carrier is formed, an image forming mechanism to develop the latent image with toner and transfer a resultant toner image on the surface moving member so as to form the adjustment pattern along a surface moving direction thereof, a pattern sensor to detect the adjustment pattern, a correction mechanism to correct the target rotation angular speed of the latent image carrier based on an amplitude and a phase of a variable component in a pattern interval of the adjustment pattern detected with the pattern sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.