LIQUID CRYSTAL PLATEN MASKS
Original Publication Date: 1980-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
This disclosure relates to a modification in the design of the transparent platen of a xerographic copier/duplicator. The modification is the incorporation of a mask within the platen which will indicate to the operator where the original document should be positioned and which will provide the additional function of furnishing a reflective surf ace within the optical cavity beneath the platen which corresponds with the area of the platen not covered by a book or other three-dimensional object.