Exposure control system for continuous tone electrophotographic

Details Exposure control system for continuous tone electrophotographic Exposure control system for continuous tone electrophotographic

Filed on

1986-11-25

Date issued

1989-03-28

Examiner

Salce, Patrick R.

Patent Class

Photocopying

SubClass

Projection printing and copying cameras

SubSubClass

Combined with or convertible to a contact printer

Other Related Categories

355 3R, 358300, 3461531, 346158, 430 23, 430 24, G03G 1500

Type

Patent

Status

active

Patent number

048168637

Description

ABSTRACT:
An exposure control system which permits accurate reproduction of optical density levels on a final image is characterized by a dynamically corrected look-up table. The look-up table is used to calculate each desired exposure intensity level for each image pixel on the basis of data obtained during the exposure and development of an immediately preceding image.

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