Patent ID: 8313163

Claim:
A method that compensates for process direction misalignment of printheads in a printer comprising: identifying a position in the process direction for each printhead in a plurality of printheads mounted on at least one print bar in a printer; identifying a position for the at least one print bar; selecting one of the identified printhead positions as a reference printhead position for the printheads mounted to the at least one print bar; identifying a printhead timing parameter for each printhead mounted to the at least one print bar, the printhead timing parameter being identified with reference to the reference printhead; identifying a print bar timing parameter for the at least one print bar, the print bar timing parameter being identified with reference to the identified at least one print bar position; generating a firing signal for the printheads mounted to the at least one print bar; adjusting delivery of the firing signal to a printhead driver circuit associated with the at least one print bar by the identified print bar timing parameter to coordinate actuation of inkjet ejectors in the printheads mounted to the at least one print bar and compensate for location errors for the at least one print bar in the process direction; and adjusting delivery of the firing signal by the identified printhead timing parameter for each corresponding printhead to coordinate actuation of inkjet ejectors in the printheads mounted to the at least one print bar and compensate for misalignment of the printheads in the process direction.