Canon PIXMA IP1500 Quick Start Manual page 40

Printing Maintenance
3
Start Print Head Deep Cleaning.
Print Head deep cleaning starts when the P P OWER lamp starts blinking.
Do not perform any other operations until the Print Head deep cleaning is
completed (about one minute).
Note
36
After Print Head deep cleaning finishes, print the nozzle check pattern to
verify that the Print Head Nozzles are clean.
See "P P rinting the Nozzle Check Pattern"
If not, check that there are sufficient ink levels in all ink tanks before
turning off the printer. Be sure to perform another Print Head deep
cleaning 24 hours after turning off the printer.
If this does not resolve the problem, the Print Head may be worn out.
Contact the Customer Care Center.
(1)
Select C C leaning from the
pop-up menu.
(2)
Click D D eep Cleaning.
(3) Click OK.
on page 27.