Question about Canon PIXMA MP780 All-In-One InkJet Printer
Wrong cartridge alarm
if you have already reseated the cartridge and tried a different one. Then the problem is with print head that would require an replacement.
Canon support has a print head replacement (it's the black thing that the ink cartridges sit in) for about $50 including UPS ground shipping. Their phone number is 1-800-828-4040, part number is QY6-0049-000.
The message can be caused , if you have used a refilled cartridge in place of a new one.
Posted on Apr 14, 2009
That happens when the print head sensor does not detect the cartridge.
To start unplug printer power cord for two minutes, and see if this can reset the error.
The wrong cartridge error may be caused also by a bad cartridge, therefore ,as first step you need to est a different cartridge, possibly a new original one.
Check also if the cartridge metal sensor inside the ink carriage is dirty and must be clean, in this case use isopropyl alcohol and cotton to clean metal contacts inside the carriage.
If that cannot fix the problem, then there is a lose connection on the wires connected to the ink carriage / print head assembly. TWhen that happens, the wires connected at the back of the ink carriage must be tested and eventually replaced.
Posted on Apr 13, 2009
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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