Image adjusting apparatus having a controlled the voltage applie

Details Image adjusting apparatus having a controlled the voltage applie Image adjusting apparatus having a controlled the voltage applie

1992-05-28

1993-08-03

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355208, G03G 2100

Patent

active

052333914

ABSTRACT:
An image adjusting apparatus being provided in a copying machine capable of performing a copy of an original by using a photosensitive body in two or more copying modes, includes a unit for sensing a toner density of an image formed on the photosensitive body, a unit for deriving a function in accordance with each of the two or more copying modes if a control voltage influencing the toner density is changed, and a unit for setting the control voltage to be a voltage value obtained based on a predetermined reference toner density and the function derived by the deriving unit. The function stands for a relation between the changed control voltage and the toner density sensed by the sensing unit.

REFERENCES:
patent: 4647184 (1987-03-01), Russell et al.
patent: 4829336 (1989-05-01), Champion et al.
patent: 5103260 (1992-04-01), Tompkins et al.
patent: 5107301 (1992-04-01), Yamauchi

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