If missing lines or white stripes appearAfter Print Headcleaning, print thenozzle checkpattern.If the problem remains after performing Print Headcleaning twiceW NoteIf [Print Head Deep Cleaning] does not resolve the problem, contact the Canon Customer CareCenter.• If the ruled lines are shiftedPrinting the Nozzle Check PatternPrint the nozzle check pattern to determine whether the ink ejects properly from the Print Headnozzles and to verify Print Head alignment. Use this function when printed results are blurred or thecolor is incorrect.W NoteEnsure that the Inner Cover is closed.1 Press [ON/OFF] to turn on the machine, then load a sheet of A4 or Letter-sizedplain paper in the Auto Sheet Feeder or Cassette.See "Turning on the Machine" on page 18 and "Loading on page 22.2 Use [Feed Switch] to select the paper source where you have loaded paper.3 Printing the nozzle check pattern.(1) Press [COPY].(2) Press [Menu] repeatedly to select <4.MAINTENANCE>.104 Routine Maintenance Chapter 8