Image forming apparatus having a controllable drive coupling
US8532532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1657
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus for forming image on a recording medium includes a photosensitive member, a motor, a belt, and a drive member to rotate the belt, the drive member including a driven coupling. The apparatus also includes a drive coupling to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction to take an engagement position at which the driving force is transmittable to the driven coupling, and a release position. The apparatus further includes a transfer member to transfer a toner image onto the recording medium or the belt, a voltage application unit to apply a voltage to the transfer member, and a control unit to cause the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position and the driving force is transmitted to the driven coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.