Copying machine

Radiant energy – With infrared or thermal pattern recording – Thermal copying of documents

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Details

2503171, 346 76PH, 358286, G03C 516

Patent

active

047162910

ABSTRACT:
A portable copying machine has a thermal head printer for printing image information on a copy paper, a Charge Coupled Device for reading out the image information, and a time-limit device of which setting time is varied in response to the voltage of power source, whereby a copying shade of the copy paper is kept constant, even if the voltage of a power source is changed by controlling the strobe pulse of the thermal head printer by the time-limit device.

REFERENCES:
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patent: 3840701 (1974-10-01), Tomii et al.
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patent: 4264396 (1981-04-01), Stewart
patent: 4317137 (1982-02-01), Tompkins
patent: 4319283 (1982-03-01), Ozawa et al.
patent: 4421406 (1983-12-01), Feinleib
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patent: 4523235 (1985-06-01), Rajchman
patent: 4574317 (1986-03-01), Scheible
IBM Technical Disclosure Bulletin, vol. 19, No. 1, Jun. 1976, Uberbacher "Read/Write Stylus", Dept. 177.
Copy-Jack 40, "Hand Copy Machine", Plus Corporation, 20-11 Otowa 1-chome, Bunkyo-ku, Tokyo 112, Japan, copyright 1986.

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