Xerox Corporation

Jeff Lee Nelson

Lisa Marie Schmidt

Russell J Watt

Matthew Hudson Dixon

A method compensates for changes in drop mass of drops ejected by ink jets in a printhead of an ink jet imaging device. The method includes identifying an average of differences between drop placement position for ink drops on an image receiving member and default ink drop positions. The average of the differences is used to adjust a parameter of one or more ink jet driving signals in response to the average of the differences being greater than a predetermined threshold.

Drop mass calibration method based on drop positional feedback

A method of compensating for changes in drop mass of drop emitted by at least one ink jet of an ink jet imaging device is provided. The method comprises identifying a drop placement position on an image receiving member of an ink jet imaging device for at least one ink jet of a print head. The identified drop placement position for the at least one ink jet is compared to a default drop placement position for the at least one ink jet to determine a difference in drop placement position. A drive signal for the at least one ink jet is then adjusted in accordance with the difference in drop placement position.

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Tigard, OR, United States of America

Jeff Lee Nelson