Image forming with abnormity detection
US9020377B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0164
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus which includes a color detection unit that emits a light to a color material and a reference plate on a printing material and detects the reflected light and corrects an amount of the color material upon image forming based on a detection result, comprises: a storage unit that stores, in advance, the detection result of each of the color material and the reference plate detected; and a blot detection unit that estimates the detection result for the reference plate based on a relationship between a stored reference value of each of the color material and the reference plate and the detection result of the color material, and if a difference between the estimated detection result and the detection result of the reference plate is larger than a predetermined value, detects presence of a blot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.