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

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Canon MP780 Printer Problem

Our Canon MP780 is about 3 years old. It started not printing in black but would print in just a few colors. We have tried lots of solutions like changing cartriges and cleaning it.

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  • muzieknootje Jan 12, 2009

    I had the same problem, cleaned, dept cleaning. Tried all the possibillities. Nothing worked. Called canon services. Garanty 2 jears!! Im affraid I have to pay their problem with this printer. Many users had the same problems. Can you give advice?

  • PPGDG Jan 15, 2009

    SMine has stopped using cyan and the 6 black. I changed the cartridge ,but it does not acknowledge the new ink level. 

  • robbyfan1st Jan 16, 2009

    I have the same problem and have been unable to find a solution. I also followed all the manufactures suggestions to no avail. Would also appreciate a suggestion to rectify the problem. Am extremely disappointed in this product. Have has cheap printers with no problems, cheaper to replace than buy ink...."invested in the product because of the ink having separate cartridges for each color. Thought that would be more economical. Now I have a surplus of ink that I can't use. Would also appreciate any suggestion s to fix this printer. Thanks.

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Try realigning the cartridges

Posted on Dec 25, 2008

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Hello!

Please check the "Rplacing an ink tank" part of the manual. Hope it will help you.
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