CauseCorrective ActionHead Cleaning B in the ControlPanel menu is executed frequently.Head Cleaning B in the Control Panel menu consumes a lot of ink. This does not indicate a problemwith the printer. Unless the printer has been moved or stored for a long period or you are troubleshoot-ing Printhead problems, we recommend not performing Head Cleaning B, to the extent possible.You have just finished initial installa-tion, when more ink is consumed tofill the system.After initial installation or at the first-time use after transfer, ink flows into the system between the InkTank and Printhead, which may cause the ink level indicators to drop to 80%. This does not indicate aproblem with the printer.The Printhead nozzles are clogged.Check for nozzle clogging. (See "Checking for Nozzle Clogging.")→P.845
Ink Level Detection
Ink Level Detection
Ink level detection will be deactivated if you load ink tanks once emptied.
Ink level detection
Ink tanks specified for this printer feature an ink level detection function to prevent the ink from running out during print-
ing, which prevents printer damage. (See "Ink Tanks .")
This function will not work correctly if you use refill ink tanks. As a result, printing stops. Thus, before using refill ink tanks, 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 liable
for any damage that may occur as a result of refilling ink.
Important•After ink level detection has been released, this function cannot be reactivated for currently loaded Ink Tank. To use ink leveldetection again, replace the Ink Tank with new ones specified for use with the printer.•Repeatedly removing and inserting an Ink Tank may damage the connection between the Ink Tank and the printer, whichmay cause ink leakage from the Ink Tank and damage the printer.
Releasing ink level detection
On the Display Screen, a message indicates that the ink level cannot be
detected. After checking the message, press the ▶ button.
Press ▲ or ▼ to select Information , and then press the OK button.
iPF6400 Ink Level DetectionUser's Guide