Light beam scanning apparatus and controlling method for image forming apparatus
US7542065B2 · kind B2 · utility
2Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0435
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light beam scanning apparatus that causes a beam generated by a light source to scan corresponding to recording direction along a photosensitive medium by rotating polygonal mirrors, wherein to form a latent image on the photosensitive medium, comprising a first polygonal mirror that rotates at a first velocity, a second polygonal mirror that rotates at a second velocity different from the first velocity, and a controller that carries out image formation by selectively using the first polygonal mirror and the second polygonal mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.