Question about Canon PIXMA MP780 All-In-One InkJet Printer
I have tried a different outlet and a different power cord. I suspect the power supply is bad. What do you suggest?
This is what the service manual says;
(1) Check the power cord
(2) Check the connection between
the SPCNT board (JPSU1) and
power supply unit.
(3) Replace the power supply unit.
Posted on Mar 16, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
Either the power source has issues or the power jack on printer has gone bad or printer's main board has issues.
Verify that the electrical connections and outlet are functioning:-
Unplug the power cable or power module from the electrical outlet.Unplug the power cable or power module cable from any power strips or surge suppressors.If the product uses a power module with a detachable power cord, unplug the cord from the power module, and then plug it back into the power module.Unplug the power cable or power module from the back of the product.Wait at least 30 seconds, and then plug in the power cable or power module into the electrical outlet.Plug the power cable or power module back into the product.Turn the product on.
If this doesnt help, take the printer to another room and plug it in another power source.
If this doesnt help, use a multimeter to check if adapter is giving out right voltage.
If adapter and power source are fine, then your printer has a hardware issue and needs to be repaired by Canon.
Please get back to us if you have further query else please accept the suggestion.
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