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

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"Wrong Cartridge" Message is being displayed on the Canon MP 780

The red warning-light flashes also. I tried already unplugging the power-cord & then starting the printer again after a few minutes.
The warranty has passed & Canon wants £100, just to look at it!

Please help & thanks in advance - Falco.

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  • Canon Master
  • 365 Answers

Remove the print head and cartridges.Unplug machine for 30 min.
Repower and reseat head and ink do a head alignment.
If this does not correct it may require service.
Ink Cartridges are the BCI6 and 3 series correct?
If using CLI8's and they are flashing red you have a bad cartridge or it is in the wrong location.If so Canon will replace the bad cartridge.

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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