Recovery processing method and unit of ink jet printing apparatus

摘要

In the present invention, the minimum necessary consumption of ink can recover the channel miss state of the plurality of nozzles. The present invention provides a recovery processing method of an ink jet printing apparatus for forming images using a print head having a plurality of nozzles for ejecting ink droplets. The method comprises a first step for detecting channel miss state of said plurality of nozzles, and a second step for executing at least one of different recovery processes depending on the channel miss states of said plurality of nozzles detected in the first step.