An imaging system includes a plurality of imaging engines each comprising
a photoreceptor belt having a belt seam. A sensor determines a relative
position of a first photoreceptor belt of a first one of the imaging
engines relative to a second photoreceptor belt seam of a second one of
the imaging engines. A controller controls a motor speed of one or more
motors driving the photoreceptor belts, wherein an output of the sensor
comprises a basis for adjustment of the motor by the controller for
relative synchronizing of the first and second belts to avoid skipping
pitches in one of the imaging engines due to relative belt seam
positions.