Print engine controller employing accumulative correction factor in pagewidth printhead

A print engine controller for a pagewidth inkjet printhead having a plurality of abutting printhead modules mounted on a carrier, wherein at least one of said printhead modules has an erroneous rotational yaw displacement, said print engine controller being configured to:

• (a) receive data identifying the rotational yaw displacement of the erroneously displaced printhead module;
• (b) determine at least one correction factor that at least partially compensates for ink dot displacement by at least one of a plurality of nozzles in the erroneously displaced printhead module;
• (c) use the correction factor to determine an accumulative Y-offset for each printhead module in the printhead;
• and
• (d) alter the output of the ink dots from nozzles in each printhead module having a non-zero accumulative Y-offset to at least partially compensate for the rotational yaw displacement of the erroneously displaced printhead module.