Film processor with agitation means
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorsAtsushi Yoshida, Norimasa Nomura
Life of this patent
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Abstract
The insertion of exposed film into a developing tank 1 is detected by a detector 12, by which a pump motor 8 is operated by a control circuit 20, to agitating continuously the developing solution filled in the tank, and simultaneously a pulse counter 16 stars counting pulses generated from a pulse generator 14. The continuous agitation of the developing solution is suspended when the film is discharged from the tank, which is measured by counting up to the predetermined number which corresponds to the time required for the film treatment in the tank. When the pulse counter 16 counts up to the predetermined number, the intermittent agitation of the developing solution is started by the control circuit 20, to keep the developing solution uniform.
Claims5
A film processor having a film conveying device which conveys exposed film to be processed;
- a developing tank in which developing solution is supplied, said exposed film being conveyed through the tank;
- and an agitating device for agitating the developing solution, comprising a film detector for detecting the insertion of film into the developing tank, the detector generating a detecting signal;
- control means for controlling the said agitating device, the control means operating continuously the agitating device when the detecting signal is received and operating it intermittently when the film is conveyed out of the tank;
- and switchover means for switching over the said agitating device from the continuous agitation to the intermittent or inversely so that the developing solution is agitated continuously during film is in the tank and intermittently during film is not in it.
Dependencies are inferred from the claim text.