Eugene E Yeo, 671809 Saltvale Rd, Warsaw, NY 14569

4903078, Feb 20, 1990

Apr 7, 1988

7/178699

Eugene D. Yeo - Rochester NY

Eastman Kodak Company - Rochester NY

G03G 2100
G03B 2754

355218

Imaging apparatus includes a light transparent platen for holding an original document which may be smaller than the platen. A light source illuminates the platen to expose a document on the platen. Transmittance of light through that portion of the platen not covered by a document is selectively inhibited, preferably by becoming substantially opaque. A light-blocking platen cover is movable between an operative, light blocking position and a non-use position. The light inhibiting operation is actuated when the cover is moved to its non-use position. Document recognition is used for detecting the outline of the original document on the exposure platen to control actuation of the light inhibiting operation, which is preferably effected by a liquid crystalline cell which has a pair of opposed plates, a grid of transparent electrodes interposed between the pair of plates, and a layer of crystalline material interposed between the pair of plates contacting the grid. Document recognition controls energization of the electrodes.

4980719, Dec 25, 1990

Jun 13, 1989

7/365590

James D. Allen - Greece NY
David M. McVay - Irondequoit NY
Eric C. Stelter - Brighton NY
Eugene D. Yeo - Clarendon NY

Eastman Kodak Company - Rochester NY

G03G 2100

355201

A reproduction method and apparatus provides for the secure reproduction of confidential documents that include image portions formed with magnetic or metallic toners. The method and apparatus of the invention also provides for the production of documents such as statements with checks having bank clearing data formed with magnetic toner, documents containing magnetically bar coded data, and documents recorded with either or both magnetic or nonmagnetic toner that may be distinguished when copied in accordance with a copying criterion established for reproducing secure documents.