Patent ID: 7887155

Claim:
An image recording apparatus having a conveyance mechanism for generating conveyance information about a record medium when the record medium is conveyed, and at least one recording unit obtained by providing at least one nozzle array formed in a direction orthogonal to the conveyance direction of the record medium using a plurality of nozzles to perform a recording process by a nozzle array drive unit of the recording unit driving the plurality of nozzles to jet ink, the apparatus comprising: a phase locked loop for generating an ink jet timing control signal determining drive timing of the nozzle array drive unit according to notified job information, controlling a frequency of the ink jet timing control signal, and allowing the drive timing to be synchronous with a conveyance distance of the record medium in the conveyance information; and a phase locked loop setting unit for setting information determining a lock range of the phase locked loop in the phase locked loop according to the job information as a condition for determining the drive timing, wherein the recording process is performed by controlling the nozzle array drive unit with the drive timing determined by the ink jet timing control signal generated by the phase locked loop.