Printing Apparatus Flushing Timing to Reduce Carriage Movement

The patent applies preliminary action by executing flushing during a printing pass before the last pass, rather than after printing completion. The controller is configured to execute flushing after executing printing in a certain printing pass which is executed before a last printing pass for printing on the certain medium. This allows the nozzle to be cleared of dried liquid beforehand, eliminating the need for post-printing carriage movement to the liquid receiver.

The patent implements continuity of useful action by integrating flushing into the printing process itself. By executing flushing during a printing pass when the carriage is already moving across the medium, the system maintains continuous useful action without interrupting the printing workflow for additional carriage movements. The controller executes flushing during movement of the carriage in a printing pass, combining two functions into one continuous operation.

The patent applies preliminary action by performing flushing during a printing pass before the last pass, when the carriage is already positioned over the medium. This eliminates the need for additional carriage movement to the liquid receiver after printing, as the flushing action is completed beforehand during the printing workflow.

The patent changes the timing dimension of flushing from post-printing to during-printing. By executing flushing during a printing pass rather than after printing completion, the system utilizes the existing carriage movement in the printing dimension, effectively adding the flushing function to the printing operation without requiring additional spatial movement to the liquid receiver.