Electrophotographic printing with column-dependent tonescale adjustment
US8824907B2 · kind B2 · utility
18Cited by
10References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 10, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Electrophotographic (EP) streaking compensation is performed. A tonescale is measured for each column and a per-column gain computed to compensate for variations. An adjustment tonescale is determined and a per-column adjustment-tonescale gain computed to correct for remaining error after the per-column gain is applied. The two corrections are used together to provide improved compensation quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.