Photothermographic media processor thermal control

Details Photothermographic media processor thermal control Photothermographic media processor thermal control

1997-11-26

1999-11-23

Paschall, Mark

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219505, 219216, 255405, H05B 102

Patent

active

059904615

ABSTRACT:
A thermal processor for thermally processing a sequence of exposed photothermographic media comprising: a rotatable thermally conductive drum; a heat source for heating the drum to a setpoint temperature; a plurality of rollers spaced around a portion of the periphery of the drum for holding down exposed photothermographic media to the drum for thermal development thereof; a sensor for sensing the temperature of the drum; and a control for controlling the temperature of the drum as a function (1) of the setpoint temperature, (2) of the sensed drum temperature, and (3) of the status of the processor, i.e., whether or not photothermographic media is being processed by the drum, in order to compensate for heat loss due to media heating and roller heating.

REFERENCES:
patent: 4006985 (1977-02-01), Hutner
patent: 4304985 (1981-12-01), Miller
patent: 4822977 (1989-04-01), Leising et al.
patent: 5266774 (1993-11-01), Kimiura et al.
patent: 5561512 (1996-10-01), Fukano et al.
patent: 5568229 (1996-10-01), Sszlucha

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