Recording-medium imaging device and image forming apparatus

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United States of America Patent

PATENT NO 8798489
APP PUB NO 20130243455A1
SERIAL NO

13887122

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Abstract

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An effective image area can be properly corrected in accordance with the quantity of light from an irradiation unit by selecting, as the effective image area, pixels having light quantities more than or equal to a threshold value that allows accurate acquisition of a surface image of a recording medium, on the basis of a light quantity distribution of the light from the irradiation unit. This reduces the influence of mounting accuracy of the irradiation unit, and allows the recording medium to be identified accurately.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebihara, Shunichi Suntou-gun, JP 18 141
Ishida, Tsutomu Mishima, JP 110 1425
Koyama, Shoichi Susono, JP 38 399
Matsui, Norio Mishima, JP 45 393

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