Photocopying – Contact printing – Light boxes
Patent
1989-06-13
1990-10-23
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
355202, G03G 1500
Patent
active
049656350
ABSTRACT:
An area of an original document sheet is to be selected for special treatment during reproduction say by an electrophotographic reproduction apparatus. Prior to selecting the area, a copy of the document is made using one type of toner and an image of a grid or other coded pattern is superimposed on this copy using the same or a second type or toner. The second pattern serves as a digitizing grid for use in identifying the area for selective treatment. In one embodiment, the pattern is formed with magnetic toner while the image of the original is reproduced with nonmagnetic toner. Alternatively, the pattern may be formed with operator readable grid coordinates allowing the operator to review the reproduction while away from the copier to determine digitizing inputs that may be manually input. In a second alternative embodiment, the pattern is formed with a different colored toner or a fluorescent toner. A hand held wand is moved over the copy and points identified through pulses generated by displacement of the wand from an edge of the copy or by reading an optical code that is imprinted into the pattern. The wand includes switches allowing the operator to identify types of special treatment etc. as well as memory for storing the points selected. After digitizing of the document is completed, the wand is plugged into the copier and downloaded into the copier's logic and control unit for processing for copying of the original with selective area treatment.
REFERENCES:
patent: 4343540 (1982-08-01), Berdat
patent: 4740818 (1988-04-01), Tsilibes et al.
patent: 4814552 (1989-03-01), Stefik et al.
patent: 4862219 (1989-08-01), Yoshida et al.
patent: 4887128 (1989-12-01), Jamali et al.
Eastman Kodak Company
Pendegrass Joan H.
Rushefsky Norman
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