Image forming apparatus having switchable color separation filte

Details Image forming apparatus having switchable color separation filte Image forming apparatus having switchable color separation filte

1990-08-21

1991-04-23

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358300, 358 75, 346107R, 346160, 355 32, 355 84, 355 88, G03F 306, H04N 129, G01D 1514

Patent

active

050104152

ABSTRACT:
An image forming apparatus for forming a mask member on the basis of a color image information and exposing a photosensitive recording medium to light through the mask member to thereby forming a color image, including a light source for emitting light, at least two color separation filter units for passing the light therethrough and providing transmitted lights having different (broader and narrower) half-widths in spectrum to thereby irradiate the light having a desired half-width in spectrum to the photosensitive recording medium, a position detecting unit for detecting each position of said color separation filter units, and a switching unit for performing a switching operation between the color separation filter units to position desired one of said color separation filter units in an optical path of the light.

REFERENCES:
patent: 3679301 (1972-07-01), Inoue
patent: 3947114 (1976-03-01), Washio
patent: 4685000 (1987-08-01), Barrett
patent: 4810614 (1989-03-01), Sangyoji et al.
patent: 4875074 (1989-10-01), Sangyoji et al.
patent: 4884082 (1989-11-01), Sonoda et al.
patent: 4949185 (1990-08-01), Nakai
patent: 4967227 (1990-10-01), Suzuki

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