Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Photo colors are all green and yellow

Have replaced with all new cartridges, cleaned, etc.  Before replacing cartridges, all photos had correct colors but had vertical black lines; now lines gone but looks like only using yellow and green colors, and they are pale and dull.  What do you suggest?

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  • Anonymous Nov 02, 2007

    I have the same problem. Is ther a way to reset the colors?? Or have the printer do a color check of some kind?? THANKS!

  • Anonymous Nov 30, 2007

    all color cartridges are new and the red one don't write!

  • Anonymous Dec 14, 2007

    This same problem, of greenish copies, began after I replaced the pink cartridge. I've cleaned the head and done all the other "troubleshooting" steps but to no avail.

  • cbstol Dec 16, 2007

    only blue prints



  • wefishak Dec 17, 2008

    I have cleaned and refreshed head, but still get yellow and green only

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Go to
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=10444

Type in:
Certain colors are missing or no ink prints on the paper.

Follow steps to fix your problem

Posted on Nov 12, 2007

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