What should I do if my nozzle check pattern has missing dots?

If the nozzle check pattern is missing dots or has deflected dots, click the Clean button to clean the print head, which takes about 60 seconds while the Pause light flashes. After cleaning completes, print another nozzle check pattern. If the pattern is still incorrect, repeat the cleaning cycle—it may take several cycles to fully clean the print head. If lines still appear broken after several cleaning cycles, turn the printer off and leave it overnight, then clean again the following morning. (Page 1-37 to 1-38)