Question about Canon PIXMA MP780 All-In-One InkJet Printer
Its only the magenta that wont work.
Inkjet printers need to be used frequently to prevent ink drying out and blocking the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages, then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer than replace the print head.
Posted on Dec 02, 2012
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Posted on Jan 02, 2017
SOURCE: Magenta printing as yellow
Well, first off, are the alignment, and nozzle check sheets looking good? If not, then work on that. If so, then we have a problem. Try creating a test sheet in Word. Make red, yellow blue & black text and see if anything else prints wrong. Get back to me!
Posted on Jun 19, 2007
Think you need to clean the sponge that the ink cartridges sit on in the head tray they are probably blocked with dry ink. You can remove the print head and tray by lifting the lever and gently lifting it out..... go here http://www.inkjethelper.com/
to see how to carefully clean it with compressed air. I had to do this too.
Posted on May 02, 2009
What you can do is take the ink cartridges out of the print head and remove the printhead. Hold the print head over a trash can and take some 409 cleaner and spray the little pads inside the print head til you start noticing the colors dripping into the trash can. You will them want to dry off the print head as much as possible and litely wipe off the outside and the bottom of the print head with a paper towel. Then reseat the printhead back into the printer and the inks. You will then want to run a nozzle check from your printer software or from the printer properties. If the inks still are not showing up run one or two cleanings. If the issue still persists then you might have to replace the printhead. If this is the case you can look up part number: QY6-0059-000 online to replace the print head.
Posted on Jul 01, 2010
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