Abstract: An electrophotographic printing machine for reproducing an original document with a copy thereof having additional indicia thereon. A means such as a movable occluder bar is used to mask a region of photoconductive member from the illuminating means to prevent discharge at that region. Then a means to discharge selectively the masked region reocrds a latent image corresponding to the additional indicia.
Type:
Grant
Filed:
November 1, 1985
Date of Patent:
December 15, 1987
Assignee:
Xerox Corporation
Inventors:
Joseph Weinberger, Gary S. Bricault, David Gruber, Eleonora Rakover