An apparatus compensates for mechanical disturbances during a print
process by adjusting the generation of image generating head actuation
signals in anticipation of a mechanical disturbance. The apparatus
includes a printer controller for generating signals to coordinate
movement of components with a rotating image receiver in a printer and
for generating data identifying a process disturbance arising from
interaction of the rotating image receiver with the components and an
expected time for the process disturbance, a process disturbance
compensator for generating a process disturbance compensation signal that
corresponds to the process disturbance identification and timing data,
and an image generating head controller for adjusting an image generating
head actuation signal with the process disturbance compensation signal.