Laser control circuit and image forming apparatus
US7580053B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Apr 4, 2008 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Apr 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1219
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image data processing section subjects input image data to image processing, and outputs first to fourth image data. First to fourth pulse width modulation circuits are PWM circuits in each of which a plurality of reference positions are set in one pixel, and output pulses corresponding to the first to fourth image data. A synthesis circuit synthesizes the pulses output from the first to fourth pulse width modulation circuits, and a laser emits a light beam in accordance with the synthesized pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.