for discharging non-image areas

Full Title

Apparatus for electrographic processes using a charge pattern > for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material > with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas > for discharging non-image areas

Classification Context

Section:

PHYSICS

Class:

PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY

Subclass:

ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY