1. A multiprocessor unit for a printer, operable to interpret a graphics description program comprised of plural independent cofinctions and non-cofunctions, comprising: a stored plurality of cofinctions of the same and different specified types and non-cofunctions; a master processor programmed to select a set of cofinctions and non-cofinctions from said stored plurality of cofunctions and non-cofinctions including cofinctions of the same specified type and cofunctions not of the same specified type for executing said graphics description; a plurality of queues for storing cofunctions; said master processor separating said non-cofunctions from said cofinctions and storing cofunctions of the same specified type in common ones of said queues; and at least one parallel processor, programmed to execute said cofunctions, such that said at least one parallel processor executes all cofunctions in a first of said queues before executing cofunctions in a next of said queues.