Method of controlling a stop position of an optical system in a

Details Method of controlling a stop position of an optical system in a Method of controlling a stop position of an optical system in a

1985-08-29

1987-09-15

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Methods

355 8, 355 51, G03B 2732

Patent

active

046935959

ABSTRACT:
A copying machine having an optical system movable by a motor in a feed direction with a predetermined feed speed and in a return direction for returning the optical system to a predetermined home position. The optical system is returned with a first speed higher than the feed speed. A countercurrent braking of the motor is performed to decelerate the motor near its home position and the speed of the motor after this braking process is decelerated to such a speed that the optical system can be stopped correctly at the home position.

REFERENCES:
patent: 4568171 (1986-02-01), Ikenoue

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