Image forming apparatus with selectively rotated developing roller
US7292800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Mar 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image carrier formed with a latent image A developing device has a developing roller driven by a stepping motor. A rotary development apparatus supports the developing device on a rotating shaft to rotate to a developing position opposed to the image carrier to form an image by developing the latent image formed at the image carrier and transfers the developed image to a medium at a transferring position The developing roller is driven by the stepping motor in a region of the latent image of the image carrier and is stopped in a holding state in a region in which the latent image is not formed by a current lower than a current in driving the developing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.