Copying apparatus

Details Copying apparatus Copying apparatus

1992-03-26

1993-05-25

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355208, 355214, 355219, 355228, G03G 1524, G03G 1502, G03G 1504

Patent

active

052144747

ABSTRACT:
The intensity of a light emitted from a light source and reflected on a document is detected by an exposure sensor. A control section controls an exposure adjusting circuit to adjust an intensity of the light emitted from the light source based on a detection result of the exposure sensor, and simultaneously controls a potential adjusting circuit to adjust a potential of a surface of a photoconductive drum through a charging device.

REFERENCES:
patent: 4912508 (1990-03-01), Zawadzki et al.
patent: 4924265 (1990-05-01), Patilla et al.
patent: 5053818 (1991-10-01), Smith

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