for discharging non-image areas

Full Title

Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) > 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 (G03G15/36, G03G21/06 take precedence) > for discharging non-image areas