Optical writing device and image forming apparatus
US7746371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2008 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Sep 29, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0448
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical writing device that writes electrostatic latent images on an image carrier by irradiating and scanning the image carrier with an optical beam includes an optical element, a support housing configured to support members constituting the optical writing device, a pair of optical-element holding members opposing each other in a principal scanning direction and arranged in the support housing, and a displacing member configured to displace at least one of the pair of optical-element holding members relatively to the support housing on a plane perpendicular to the principal scanning direction. The optical-element holding member is made of a material having a coefficient of linear expansion smaller than that of the support housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.