Photocopying – Contact printing – Machine
Patent
1988-08-25
1989-12-05
Wintercorn, Richard A.
Photocopying
Contact printing
Machine
355317, G03B 2730
Patent
active
048856088
ABSTRACT:
A picture recording apparatus in which two kinds of picture forming materials are accurately superimposed on one another, such as with a predetermined displacement therebetween. The apparatus includes a pair of forward end detector switches disposed along the conveying paths or the respective picture forming materials immediately before a position where the picture forming materials are to be superimposed on one another for detecting respective forward ends of the picture forming materials. A superimposition control device is responsive to a detection signal from one of the pair of forward end detector switches for one of the picture forming materials to stop conveyance of the one picture forming material and which is responsive to a detection signal from the other of the pair of forward end detector switches for the other picture forming material to control re-conveyance of the one picture forming material at a desired timing to effect correct superposition between the two picture forming materials.
REFERENCES:
patent: 3182578 (1965-05-01), Limberger
patent: 4192609 (1980-03-01), Tani et al.
patent: 4724469 (1988-02-01), Shimizu et al.
patent: 4745442 (1988-05-01), Oshikoshi et al.
patent: 4792828 (1988-12-01), Ozawa et al.
patent: 4799084 (1989-01-01), Koike et al.
Fuji Photo Film Co. , Ltd.
Wintercorn Richard A.
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