Xerox Corporation

Joannes N M DeJong

Vittorio R Castelli

Lloyd A Williams

Lawrence R Benedict

Vincent M Williams

A copy machine having a high accuracy sheet registration system for precise placement of images on each copy sheet. The copy machine includes sensors with charge coupled devices (CCDs) that detect the sheet positions in two dimensions within the machine, and detect sheet arrival times at various positions with the machine. Using this detected information, the copy machine employs a multi-stage process to bring the sheet into contact with a color image moving on a photoreceptor belt, in synchronism with the position and speed of the image on the belt. The copy machine also monitors its own condition and makes predictions about needed preventive maintenance, to instruct personnel to service the machine before the machine fails.

Growing community of inventors

Suffern, NY, United States of America

Joannes N M DeJong