Image forming apparatus with a density sensor for detecting density fluctuations
US8983318B2 · kind B2 · utility
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26References
20Claims
0Family size
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jun 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5058
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus is disclosed, including a light source; a drum; an optical scanning apparatus; and an endless belt. The image forming apparatus further includes a pattern forming unit which forms, on the endless belt along a conveying direction of the endless belt, a density fluctuation detecting pattern having a period; a density sensor which detects the density fluctuating detecting pattern and outputs a density signal including information on density fluctuations in the conveying direction of the endless belt; and a period detecting sensor which detects the period included in the density fluctuations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.