US Patent 7551324 Print engine controller for driving a printhead

A print engine controller configured to be coupled with others to drive an ink drop printhead comprising: an interface at which to receive compressed page data; image decoders to decode compressed image planes in the received compressed page data; a half-toner/compositer to composite respective strips of the decoded image planes; and a printhead interface to output the composite strip to a printhead, the printhead interface including: a multi-segment printhead interface outputting printhead formatted data; and a synchronization signal generator outputting a synchronization signal to couple print engine controllers to synchronize their respective strips at the printhead.