Patent ID: 8099009
Filing Date: 2012-01-17
Classification: G03G

Abstract:
1. A method for synchronizing first and second print engines, comprising: enabling movement of a first print engine dielectric support member (DSM) having plurality of frame markers corresponding to a plurality of image frames; enabling movement of a second print engine DSM having plurality of frame markers corresponding to a plurality of image frames on the first print engine dielectric support; monitoring a first frame signal from the plurality of frame markers on the moving first print engine DSM; monitoring a second frame signal from the plurality of frame markers on the moving second print engine DSM; determining an offset for each of corresponding pairs of frames from the one or more image frames of the first print engine DSM and second print engine DSM based on the first frame signal and the second frame signal; comparing the determined offset for corresponding pairs of frames to a target offset; and adjusting a velocity of the second print engine DSM based on the comparison of the determined offset and the target offset to maintain synchronization between the first and second print engines on a frame by frame basis.