Belt moving device and image forming apparatus including the same
US6925279B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Aug 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A belt moving device of the present invention includes a drive shaft for moving the belt and a drive transfer line for transferring the output torque of a motor to the drive shaft. A marker sensor senses a marker positioned on the belt to thereby determine the position of the belt in the direction of movement. A rotation condition sensor senses the rotation condition of the drive shaft. A first correction information generating circuit generates, based on the output of the marker sensor, correction information for correcting the position of the belt. A second correction information generating circuit generates, based on the output of the rotation condition sensor, correction information for correcting the rotation condition of the drive shaft. A controller controls the movement of the motor in accordance with the correction information output from the first and second correction information generating circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.