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1. At the WorkCentre 450c, press the CARTRIDGE key
twice to display [clean] on the LCD.
2. Press ENTER.
A message displays on the LCD while the WorkCentre
is cleaning. When cleaning is complete, you can run a
printer test to check
your print quality.
3. Press the MENU key.
4. Press 6 [Printer] and ENTER.
5. Press 5 [Make test print] and ENTER.
6. Check the test print. If you notice breaks in the ink
coverage, clean the color print head or high capacity
ink jet cartridge again.