Cleaning the PrinterCleaning the PrintheadCleaning the Printhead may help clear nozzles that are clogged.Note• You can specify a number of pages in the printer’s Noz. Check Freq. menu for automatic nozzlechecking and cleaning every time you nish printing that quantity. (→P.48)• You can start Head Cleaning A by holding down the Information button for three seconds or more.Cleaning the Printhead1. Press the Menu button to display MAIN MENU.2. Press ▲ or ▼ to select Head Cleaning, and then press the ► button.3. Press ▲ or ▼ to select the type of cleaning, and then press the OK button.• Head Cleaning AUse Head Cleaning A if printing is faint or contains foreign substances. This method of cleaningconsumes the least amount of ink. It takes about two minutes to complete.• Head Cleaning BUse Head Cleaning B if no ink comes out of the printhead, or if Head Cleaning A does not solve theproblem. It takes about three minutes to complete.The printhead is cleaned, and the printer goes online.4. Print a test pattern to check the nozzles, and determine whether cleaning has cleared thenozzles. (→P.693)Note• If printing does not improve after Head Cleaning A, try Head Cleaning B. If this does not solvethe problem, repeat Head Cleaning B at least two times. If this still does not improve printing, thePrinthead may have reached the end of its useful life. Contact your Canon dealer.Caution• Do not remove the Maintenance Cartridge or Ink Tanks during cleaning.Maintenance 721
