Cause Corrective ActionHead Cleaning B is usedoften.Head Cleaning B consumes a lot of ink. This does not indicate a problem with theprinter. Unless the printer has been moved or stored for a long period or you are trou-bleshooting Printhead problems, we recommend not performing Head Cleaning B,to the extent possible.You have just finished ini-tial installation, when moreink is consumed to fill thesystem.After initial installation or at the first-time use after transfer, ink flows into the sys-tem between the Ink Tank and Printhead, which may cause the ink level indicators todrop to 80%. This does not indicate a problem with the printer.The printhead nozzles areclogged.Check for nozzle clogging.(See "Checking for Nozzle Clogging.") →P.763Ink level detectionInk level detection will be deactivated if you load ink tanks once emptied.Ink level detectionInk tanks specified for this printer feature an ink level detection function to prevent the ink from running out duringprinting, which prevents printer damage. (See "Ink Tanks.") →P.750This function will not work correctly if you use refill ink tanks. As a result, printing stops. Thus, before using refill inktanks, you must cancel the ink level detection.Printing with the ink level detection canceled may lead to printer damage and printing problems. Canon Inc. is not liablefor any damage that may occur as a result of refilling ink.Caution• After ink level detection has been disabled, this function cannot be reactivated for the currently loadedInk Tank. To use ink level detection again, replace the Ink Tank with a new ink tank specified for usewith the printer.• Repeatedly removing and inserting an Ink Tank may damage the connection between the Ink Tank andthe printer, which may cause ink leakage from the Ink Tank and damage the printer.Disabling ink level detection1. On the Display Screen, a message indicates that the ink level cannot be detected. After checking the message,press the ▶ button.2. Press ▲ or ▼ to select Information, and then press the OK button.Troubleshooting > Other problems >Ink level detection iPF81512826
