Scanning-member-stop positioning device for the image forming ap

Details Scanning-member-stop positioning device for the image forming ap Scanning-member-stop positioning device for the image forming ap

1989-02-28

1990-07-31

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Original moves continuously

355 57, 355 66, 355235, G03B 2748, G03B 2750, G03B 2770

Patent

active

049453840

ABSTRACT:
A scanning-member-stop positioning device for the image forming apparatus, wherein a document in contact with a document glass plate is exposed due to the movement of a scanning member consisting of an optical section or a document glass plate, will execute a precise braking control in which a suitable degree of the brake power determined by the actual run to stop the scanning member just at the home position. Accordingly the present invention should be characterized about what the brake power, started at the timing of the passage over the fixed position against the scanning member running back toward the home position in the fixed velocity, is changed the degree, and about what the suitable degree of the brake power is determined by operation corresponding to the moving distances given as a result of the change.

REFERENCES:
patent: 4693595 (1987-09-01), Kunikawa et al.

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