Title:
画像読取装置、画像形成装置
Document Type and Number:
Japanese Patent JP6752619
Kind Code:
B2
Abstract:
An image reading apparatus includes a front-side reader, which includes a white LED configured to irradiate an original with light and a CMOS sensor configured to receive light that is reflected by the original. The front-side reader is configured to generate read data that represents a luminance value of an image on the original from the result of receiving light with the CMOS sensor. The image reading apparatus stores, in a non-volatile memory, a condition for determining whether there is a sub-scanning color shift, and uses a sub-scanning color shift detector to determine whether there is a sub-scanning color shift based on the read data obtained from the front-side reader and the condition stored in the non-volatile memory. When there is a sub-scanning color shift, the image reading apparatus corrects the sub-scanning color shift by correcting the read data with a color shift corrector.
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Inventors:
Katsuhiro Ishido
Akagi Taisuke
Akagi Taisuke
Application Number:
JP2016097857A
Publication Date:
September 09, 2020
Filing Date:
May 16, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N1/04; G06T1/00; H04N1/028; H04N1/60
Domestic Patent References:
| JP2009273119A | ||||
| JP2012084649A | ||||
| JP8201616A |
Attorney, Agent or Firm:
Masatake Suzuki