How do I clean the head on my Canon Pixma MP780?

Every time you turn on your printer, it goes through a print head cleaning routine and the print head nozzles flush all the inks into the cleaning pads. This is why the inks are levels are dropping even though you have not printed anything.

Hi there. i understand that you want to clean the printhead of your canon pixma mp780, dont worry im here to help you out with this.
do this following steps in order for you to clean the printhead.If the printed Nozzle Check Pattern is broken, missing, or a specific color is not printed, clean the print head.

1. Press the <Menu> button on the printers operation panel repeatedly until [MAINTENANCE] appears in the LCD.
   
   
2. Press the left [<] or right [>] arrow buttons to select the cleaning setting you want. Select [HEAD CLEANING] or [HEAD REFRESHING] for deep print head cleaning.
   
   Take Note: [HEAD REFRESHING] uses more ink than [HEAD CLEANING], so perform [HEAD REFRESHING] only when necessary ok?
   
   
3. Press the <OK> button.
   
   
4. Print a Nozzle Check Pattern and perform at least two Head Refreshings if the pattern is not correct.

hope that this steps helped you a lot in cleaning the printhead of your printer.Good Luck!

I had the same problem on my pixma mp780. I cleaned the printer head. it worked for about a year, but then i had to replace the printer head. after you clean or replace it reboot it.

clean the head of the ink. then do the calibration for canon.

I think you are seeing "ERROR 5100: Cartridge Jammed", right?. Here is the most likely solution to this issue with your printer. The following procedure comes directly form Canon
ERROR LCD: CARTRIDGE JAMMED

1. Press ON/OFF switch to reset the multifunction device 2. Removing obstructions, foreign objects and paper jams MP750 / MP780 3. Reseat MP750 / MP780 print head 4. The MP780 may require repair

Try with head cleaning, replacement of other inks, or with new print head

ink tank

You can buy a new printhead, if that is the problem. did you try printing after the machine cooled down?
Try going on eBay and search for an MP780 printhead...it should cost about $50-60 or about $60-85 elsewhere, check Canon too.
Possibly, a cleaning kit might unclog anything plugged, though a electrical problem is probably fixed only with a new head. New heads snap in to the printer...Good Luck!

Have you tried nozzle check? If poor printout then clean the head using the printer utilities (This is obvious and assume you tried it)

As its new why trouble yourself? Get on to help desk and sort out under warranty!

Hi. the problem is the print head, maybe is clogged or damage, try this remove the cartridges , and the print head and submerge the print head in hot water for 3 minutes, dry the print head and reinstall it, if problem persist replace the print head.

TCT How to remove and clean Canon Printhead