Method and apparatus for visualization of electrostatic images

Details Method and apparatus for visualization of electrostatic images Method and apparatus for visualization of electrostatic images

1977-01-11

1979-03-27

Moses, Richard L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

118 7, 118646, 355 3DD, 355 4, G03G 1500

Patent

active

041463250

ABSTRACT:
A method and apparatus for effecting the visualization of electrostatic images. During the deposition of the pigment in the developing area, the absorption of light is measured at least at one part of the surface of the image so as to form a signal, and that the further supply of pigment is controlled in accordance with this signal. Through the control, meaning the termination or break off of the developing sequence upon reaching of a predetermined image coating, respectively, color depth, such as darkening, there is obtained the identical picture characteristics for all exposures.

REFERENCES:
patent: 3430606 (1969-03-01), Pease et al.
patent: 3778146 (1973-12-01), Knapp
patent: 3872825 (1975-03-01), Davidson
patent: 3873197 (1975-03-01), Whited

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