Condensation-free data reading machine

Details Condensation-free data reading machine Condensation-free data reading machine

1988-11-02

1990-02-27

Reynolds, B. A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346107R, 350582, H04N 123

Patent

active

049050923

ABSTRACT:
A compact, handy type facsimile machine includes a light source for illuminating an original, a line image sensor for optically reading the original, a condensation sensor for detecting formation of water droplets by condensation on the image sensor, and a control circuit for activating the light source when the condensation sensor has detected the formation of water droplets by condensation on the image sensor. Thus, upon occurrence of condensation, the condensation sensor generates a detection signal, and, in response thereto, the light source is lit to produce heat which then causes the water droplets formed on the image sensor to disappear. Upon disappearance of such water droplets, the control circuit deactivates the light source if there is no original to be read.

REFERENCES:
patent: 2693589 (1952-04-01), Hopkins

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