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

1 Answer

My Canon MP780 will not power on.


I have tried a different outlet and a different power cord. I suspect the power supply is bad. What do you suggest?

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  • froog Feb 08, 2009

    Same problem here


  • Anonymous Apr 06, 2009

    My MP780 will not turn on.I'm getting 115V to the unit and the power supply fuse is good.

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  • Canon Master
  • 4,590 Answers

This is what the service manual says;
(1) Check the power cord
connection.
(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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1 Answer

My printer won't turn on


Hi

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.
Thank you for contacting fixya.com



Aug 06, 2011 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Pixma MP780 Can't turn on


If you printer will not turner on, plug it into a different know working outlet.
There could be physical problem with your printer or the power cord / supply could be supplying faulty power or none at all.
Send it back if you can,

Nov 08, 2009 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

Stopped working...is it a fuse wrapped around the power cord that could be faulty?


no that is a graphite ferrol just to cut down noise it may receive from other devices. check the voltage with a meter on the power supply. If it plugs direct into a/c from the wall, the power board is most likely bad in printer. then it's a throw away.

Oct 22, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon Pixma MP780 printer wont turn on


Dear sir,
This problem printer power supply or power adoptar is out of order or fuse is burning
please chack it and solve this problem

Aug 27, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

I have no power to the printer to my canon pixma mp780. why? Saw another on E-bay with same problem. Cord is Ok - checked it w/ meter.


This is what the service manual says:
(1) Check the power cord
connection.
(2) Check the connection between
the SPCNT board (JPSU1) and
power supply unit.
(3) Replace the power supply unit.

Aug 13, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

My canon Pixma MP780 suddenly would not turn on, after 3 years. Checked the cord, changed wall plugs, the lights flashed but then went dead. Help, pleeze


(1) Check the power cord
connection.
(2) Check the connection between
the SPCNT board (JPSU1) and
power supply unit.
(3) Replace the power supply unit.
That's what the service manual says for your problem!

Jul 06, 2009 | Canon PIXMA MP780 All-In-One InkJet...

3 Answers

Pixma MP780 Can't turn on


To move the print cartridge without power to the printer: Grab it with your hand and slide to the middle. It may offer slight resistance and while not an expert, I doubt damage will be caused.

Feb 03, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

No power. Replaced pwr. cord.


Check that the power cord has been properly attached and that no damage has occurred. Also try another outlet on a different circuit.

Jan 29, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

No power getting to printer


This is due to the Power supply depending what country you are in i can offer you the part number but you will only be able to buy this part from a canon service company like myself, but im in the uk.

If the power supply does work work it will be down to the main board. if you had a service engineer out he would test the power supply to see if it was working to work out what part he needs.

power supply: HY7-2921-000

hope this helps

Oct 23, 2008 | Canon PIXMA MP780 All-In-One InkJet...

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