Variable speed drive apparatus for the scanning system of a copy

Details Variable speed drive apparatus for the scanning system of a copy Variable speed drive apparatus for the scanning system of a copy

1977-12-09

1979-03-06

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

G03G 1500, G03B 2736

Patent

active

041427939

ABSTRACT:
A copy machine for reproducing original size, reduced or magnified copies of an original document is disclosed. The original document is supported on a transparent support surface. An optical scanning system is moved past the original document and an image of the document is transmitted to a photosensitive surface which is moved at constant speed. The speed of the optical scanning system is related to the magnification ratio. The scanning system is driven by a plurality of cams mounted upon a common cam shaft. Scanning speed is selected by coupling the scanning system to one of the plurality of cams.

REFERENCES:
patent: 3614222 (1971-10-01), Post et al.
patent: 3897148 (1975-07-01), Ritchie et al.
patent: 4032231 (1977-06-01), Zucker
patent: 4035075 (1977-07-01), Sprado

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