Copier with variable magnification ratio

Details Copier with variable magnification ratio Copier with variable magnification ratio

1988-10-03

1989-11-14

Prescott, A. C.

Photocopying

Contact printing

Light boxes

355235, 355 56, G03G 1500

Patent

active

048811025

ABSTRACT:
A copier capable of varying magnification ratio moves its optical system to a position determined by an inputted value of magnification ratio only after its print switch is operated to start a copying operation.

REFERENCES:
patent: 4222660 (1980-09-01), Furuichi et al.
patent: 4323308 (1982-04-01), Kitajima et al.
patent: 4441805 (1984-04-01), Smith
patent: 4494866 (1985-01-01), Rattin et al.
patent: 4552450 (1985-11-01), Tomosada et al.
patent: 4568173 (1986-02-01), Abuyama
patent: 4579445 (1986-04-01), Hasegawa
patent: 4624552 (1986-11-01), Asako
patent: 4743944 (1988-05-01), Tomosada et al.
patent: 4752809 (1988-06-01), Ito

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