Image formation with manual and automatic exposure adjustment

Details Image formation with manual and automatic exposure adjustment Image formation with manual and automatic exposure adjustment

1989-09-08

1991-06-11

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355313, 355326, 355 69, G03G 1504, G03G 1501

Patent

active

050236628

ABSTRACT:
A copying apparatus reproducing images of originals in either of a single color and a plurality of colors, and being capable of adjusting the reproduction density of originals manually or automatically. This copying apparatus comprises a selector which selects one mode from a first reproduction mode wherein images of originals are reproduced in a single color and a second reproduction mode wherein images of originals are reproduction in a plurality of colors. Further, the copying apparatus according to the present invention can select an automatic adjusting mode wherein the reproduction density is automatically adjusted in response to the selection of said first reproduction mode, and a manual adjusting mode wherein the reproduction density is manually adjusted in response to the selection of said second reproduction mode.

REFERENCES:
patent: 4275958 (1981-06-01), Tachika et al.
patent: 4542985 (1985-09-01), Hanna
patent: 4568173 (1986-02-01), Abuyama
patent: 4655579 (1987-04-01), Adachi
patent: 4711569 (1987-12-01), Nishimori et al.
patent: 4763163 (1988-08-01), Hamano et al.

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