Exposure device, image forming apparatus, exposure control method and computer-readable medium
US8368734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Sep 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exposure device includes a plurality of light-emitting elements, a lighting driver, a first storage, a reader, a shading correction unit and a second storage. The lighting driver drives and lights up the light-emitting elements based on image data. The first storage stores light amount unevenness correction values of the respective light-emitting elements. The reader reads the light amount unevenness correction values stored in the first storage. The shading correction unit executes shading correction for the light amount unevenness correction values read by the reader. The second storage stores correction values obtained by having the shading correction unit to execute the shading correction for the light amount unevenness correction values. The lighting driver controls light power of the respective light-emitting elements based on the correction values stored in the second storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.