4.If there are no gaps, press OK to continue printing.
If there are gaps or the pattern is faint, press x Start to clean the print head (see the next section for details).
Cleaning the Print Head
If print quality has declined and the nozzle check pattern indicates clogged nozzles, you can clean the print head. Print head cleaning uses ink, so clean it only if necessary.
Note:
You cannot clean the print head if an ink cartridge is expended or low. You must replace the cartridge first (see page 29).
1.Make sure the CX7400 Series is on and the B ink light is off.
2.Hold down the y Stop button for at least 3 seconds until the P On light starts flashing, then release the buttons. The CX7400 Series runs a head cleaning cycle, which takes about one minute.
Caution:
Never turn off the CX7400 Series during head cleaning or you may damage it.
3.When the P On light stops flashing, run a nozzle check (as described on page 26) to verify that the print head is clean.
4.If there are still gaps or lines, or the test patterns are faint, run another cleaning cycle and check the nozzles again.
Note:
If you don’t see any improvement after cleaning the print head two times, turn off your CX7400 Series and wait at least six hours to let any dried ink soften. Then try printing again.
If you do not use your CX7400 Series often, it is a good idea to print a few pages at least once a month to maintain good print quality.
Cleaning the Print Head 27