Document registration system

Details Document registration system Document registration system

1985-06-24

1987-01-27

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 14SH, 355 55, G03G 1500

Patent

active

046391215

ABSTRACT:
The present invention is directed towards an optical scanning system for an electrophotograhic printing machine wherein a lens control system is provided to enable lens movement independent of lens movement which occurs during magnification changes. The lens carriage is adapted to be independently driven in one or two directions dependent on the mode of operation selected by the operator and under the control of a system controller which analyzes the inputs which determine lens position (open platen or document feeder mode, output copy size, magnification).

REFERENCES:
patent: 4077710 (1978-03-01), Ward et al.
patent: 4139298 (1979-02-01), Tani
patent: 4209248 (1980-06-01), Gibson et al.
patent: 4353643 (1982-10-01), Statt
patent: 4483608 (1984-11-01), Satoh
patent: 4585332 (1986-04-01), Shenoy

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