Drive controlling mechanism of optical member for use in copying

Details Drive controlling mechanism of optical member for use in copying Drive controlling mechanism of optical member for use in copying

1982-07-08

1984-05-15

Hix, L. T.

Photocopying

Projection printing and copying cameras

Focus or magnification control

350255, G03B 2734, G02B 711

Patent

active

044485174

ABSTRACT:
A drive controlling mechanism of optical members for use in a copying apparatus, including an optical member, a pair of pulleys, a drive pulley for driving the pulleys for the rotation, a wire wound around the pulleys and the drive pulley and secured to the optical member, a pair of urging members for urging the pulleys in opposite directions for preventing the optical member from being brought out of contact with the stopper member, a plurality of stopper members for stopping the optical member at predetermined positions, a pair of detecting members for detecting swing movement of the pulleys, and a control circuit.

REFERENCES:
patent: 4211482 (1980-07-01), Arai et al.
patent: 4219273 (1980-08-01), Ikeda

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