Image recording apparatus having a mechanism for varying copying

Details Image recording apparatus having a mechanism for varying copying Image recording apparatus having a mechanism for varying copying

1990-01-26

1991-09-17

Brown, Brian W.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 58, G03B 2752

Patent

active

050499262

ABSTRACT:
An image recording apparatus for recording an image corresponding to an original on a photosensitive recording medium by irradiating light onto the original and converging light from the original onto the photosensitive recording medium. The apparatus includes a lens unit vertically movably supported by the frame, a plurality of position setting holes arrayed in a vertical direction of the frame, position setting means provided on the lens unit and capable of being inserted into one of the position setting holes for fixing the lens unit to the frame, urging means provided on the lens unit for urging the position setting means toward the frame to project the position setting means, actuating means provided on the lens unit for actuating the position setting means so that the position setting means retracts and moves away from the frame against urging force of the urging means when electric current is supplied to the actuating means. The apparatus further includes control means for controlling the actuating means so that when an error is detected during movement of the lens unit, electric current to the actuating means is cut off to project the position setting means by the urging force of the urging means and to fix the lens unit to the frame.

REFERENCES:
patent: 4421405 (1983-12-01), Nagahara

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