Optical system drive for image formation apparatus

Details Optical system drive for image formation apparatus Optical system drive for image formation apparatus

1985-03-15

1986-05-06

Grimley, A. T.

Photocopying

Including fiber optics

355 14C, 318696, G03G 1500

Patent

active

045868085

ABSTRACT:
An optical system drive device for an image formation apparatus has a drive mechanism for reciprocally driving an exposure unit, and a pulse motor for supplying pulses to the drive mechanism. The pulses to be supplied to the pulse motor are stored in advance in a ROM. In accordance with either document size or required equal size, reduced scale or enlarged copying mode, a microprocessor reads out a predetermined control pulse from the ROM and applies it to the pulse motor, thereby controlling acceleration, constant velocity drive and deceleration of the pulse motor.

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patent: 4241301 (1980-12-01), Pohlig
patent: 4253052 (1981-02-01), Meier
patent: 4287461 (1981-09-01), Promis et al.
Sigma Stepping Motor Handbook, pp. 1-61, Braintree, Mass.
IBM Technical Disclosure Bulletin, vol. 6, No. 10, Mar. 1964, pp. 53-55, Scalone et al., "Incrementing Positioning Control Circuit".

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