Image processing apparatus for determining whether an image cont

Details Image processing apparatus for determining whether an image cont Image processing apparatus for determining whether an image cont

1996-05-17

1997-05-20

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

358501, 382135, G03G 2104

Patent

active

056317239

ABSTRACT:
A specified original that is not supposed to be copied is marked with a pattern that is formed by infrared reflected light. A copying apparatus includes a detecting unit for detecting the pattern and determines that an original is the specified original in accordance with the detection by the detecting unit. A copying operation is controlled in accordance with the determination of whether the original is the specified original that is not supposed to be copied.

REFERENCES:
patent: 5257119 (1993-10-01), Funada et al.

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