Density control system for a digital copier

Details Density control system for a digital copier Density control system for a digital copier

1990-05-21

1992-05-05

Braun, Fred L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

355214, H04N 140

Patent

active

051113090

ABSTRACT:
A digital copier having a density control system. The background of the original document is digitally erased based on the density of the background. The image data is separately controlled and not effected by the background erasing process. A manual operating control is provided in conjunction with an automatic density mode in order to control the image data. The particular level of the image data can be adjusted even in the automatic density mode.

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