Question about Canon MultiPASS MP730 All-In-One InkJet Printer

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Wrong cartridge my canon pixma mp780 kept flashing 'wrong cartridge' even if i had changed the ink cartridges with new ones. I even tried pulling it out and rebooting the unit still has an alarm on wrong cartridge, pls. help

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  • hirthlr Aug 22, 2008

    Unit was working fine. Had a power company surge, and started flashing "wrong cartridge" when power came back steady. NOTHING works to clear the problem. Have tried all new cartridges. Do not have a cartridge carrier to try.

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The only solution that will work is replacing the print head. I checked with canon and that's what "wrong cartridge " means. I have had this with one of my own and one from a client and both are now fine with new printheads.

Posted on Jan 09, 2009

The tape they are refering to is to be removed from New cartridges. It's like clear scotch tape, covers/protects the micro ink jets untill ready to use. Look for it around the business end of the cartridge.

Posted on Aug 25, 2008

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Sorry, just referring to leanbicycler, what do you mean by the 'tape' and can you explain further about how to fix it - which part is 'off the bottom of those new items'?

Posted on Aug 24, 2008

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Check to see that all cartridges are in proper locations, and seated firmly(be gentle when pressing them in) you may want to assure yourself that the tape, if used, is off the bottom of those new items.




Posted on Aug 20, 2008

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I changed my Canon PIXMA MP780 3e cartridge, and


I have to ask this question of you, just to make sure this is not an issue. Are you using a factory new ink or toner cartridge?
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same as when you change ink tanks...
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