Illuminating means for electrophotographic copier apparatus

Details Illuminating means for electrophotographic copier apparatus Illuminating means for electrophotographic copier apparatus

1983-08-22

1984-09-11

Prescott, A. C.

Photocopying

Including fiber optics

355 14E, 355 8, G03G 1500

Patent

active

044706910

ABSTRACT:
A projection and illuminating system for an electrostatic copier machine which includes an endless electrophotographic belt mounted for driven rotation in a generally oval path past plural functional stations for reproducing a pattern from a pattern carrying original. The pattern is illuminated and projected to a transparent platen as the original moves over the platen. At least one lamp is arranged below the platen, the lamp including a window and the axial aspect of the lamp is varied to vary the illumination. A rectangular cross-section lens is disposed aligned with the center of the platen. The lamp can be rotated in its socket. One of the lamp and socket therefor can be rotated to change the position of its window, hence vary the illumination reaching the belt to only that light reflected from the platen bottom and which passes through the lens.

REFERENCES:
patent: 3321307 (1967-05-01), Urbach
patent: 3652156 (1972-03-01), Lahr et al.
patent: 4030823 (1977-06-01), Brugger et al.
patent: 4215930 (1980-08-01), Mivakawa et al.
patent: 4239374 (1980-12-01), Tatsumi et al.

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