Optical scanning device moving gravity center of pixel in sub-scanning direction, image forming apparatus having light sources, and method
US8089665B2 · kind B2 · utility
4Cited by
18References
20Claims
0Family size
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Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1911
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical scanning device includes n-odd (n≧2) light sources disposed at different positions at least in a sub-scanning direction, a pixel forming part in which one pixel is depicted by light beams emitted from m-odd (n≧m≧2) light sources of the n-odd light sources and a distance of adjacent light sources for emitting the light beams in the sub-scanning direction is less than 5 μm, and a light source driving control part configured to control an emitting state of the light sources for depicting the one pixel and conduct an emission driving control for moving a gravity center of the one pixel in the sub-scanning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.