Photocopying – Including fiber optics
Patent
1985-02-21
1986-11-18
Prescott, A. C.
Photocopying
Including fiber optics
355 11, 355 66, 350 65, 350484, G03G 1500
Patent
active
046232397
ABSTRACT:
A document scanning apparatus is disclosed which provides a scan and rescan motion to a scan carriage using only mechanical drive components. Motion of a rotating photoreceptor is transferred, via drive pulley components to a main drive shaft having, in a first embodiment, a pair of pulleys fixedly mounted at the ends. The pulleys drive cables which, in turn, drive the scan carriages of the disclosed system in a scan or rescan direction, dependent upon the drive pulley rotation. The drive pulley rotation is controlled by a movable hub assembly on a drive shaft and by a linkage mechanism which is periodically engaged by the scan carriage at a beginning or end of scan position. Mechanical engagement of the scan carriage with the linkage mechanism causes a reversal of the drive pulley rotation and hence a reversal of the scan carriage direction of travel. In a second embodiment, a rack and gear arrangement is used to drive the scan carriage.
REFERENCES:
patent: 3884574 (1975-05-01), Doi et al.
patent: 3897148 (1975-07-01), Ritchie et al.
patent: 4279497 (1981-07-01), Satomi
patent: 4330201 (1982-05-01), Walker
patent: 4355883 (1982-10-01), Landa
patent: 4371254 (1983-02-01), Beery
patent: 4538903 (1985-09-01), Lane
patent: 4538904 (1985-09-01), Lane
"Scanning Mirror Imaging System" by W. F. Voit, IBM Technical Disclosure Bulletin, vol. No. 9, Feb. 1973, pp. 2691-2692.
Prescott A. C.
Xerox Corporation
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