Optical device in variable magnification electrostatic copying a

Details Optical device in variable magnification electrostatic copying a Optical device in variable magnification electrostatic copying a

1982-09-29

1984-12-11

Gonzales, John

Photocopying

Including fiber optics

355 60, G03G 1528

Patent

active

044874979

ABSTRACT:
An optical device in a variable magnification electrostatic copying apparatus includes a first reflecting mirror assembly mounted for reciprocal movement, a second reflecting mirror assembly mounted for reciprocal movement substantially parallel to the reciprocating direction of the first reflecting mirror assembly, and a speed-reduction interlocking mechanism for moving the second reflecting mirror assembly at a speed equal to one-half of the moving speed of the first reflecting mirror assembly, upon movement of the first reflecting mirror assembly. The optical device further includes a magnification setting mechanism for changing the relative position of the second reflecting mirror assembly with respect to the first reflecting mirror assembly according to a desired copying magnification. The magnification setting mechanism comprises a setting cam having a plurality of acting portions corresponding to a plurality of magnification values and a setting member adapted to be held by the setting cam at any one of a plurality of setting positions corresponding to the plurality of magnification values. The changing of the position of the setting member causes a change in the relative position of the second reflecting mirror assembly with respect to the first reflecting mirror assembly.

REFERENCES:
patent: 3884574 (1975-05-01), Doi et al.
patent: 4125323 (1978-11-01), Ikeda et al.
patent: 4126389 (1978-11-01), Ikeda et al.
patent: 4142793 (1979-03-01), Schilling
patent: 4168905 (1979-09-01), Kitajima
patent: 4295736 (1981-10-01), Ikeda
patent: 4335953 (1982-06-01), Tsuchiya

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