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

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LCD display My printer is working, but the LCD is blank, is there anything I can do to restore this? Lisa

Posted by lisamc on

  • Anonymous Feb 20, 2009

    gee canon are helpfull, didn't fix my problem either

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Thomas Christopher

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The LCD display screen is blank, back-light remains on. Powering off machine to power back on results in loud, abrasive rattle which seems to come from scanner. Unable to do anything with device.


When this happens the first thing you should do is check the connections to the LCD screen. However if it was working fine before this is most likely not necessary since they have to be connected properly to show anything. After that you would need to replace the LCD or the Logic board. If everything else is working properly then the problem is more than likely the LCD needs to be replaced.

Mar 12, 2014 | Brother MFC 6490CW InkJet Printer

1 Answer

No power when I turn the unit on


  1. Verify whether or not the date and time appear on your Brother machine's LCD. If anything is displayed on your Brother machine's LCD, then it is most likely receiving power.

    1. If your Brother machine's LCD is blank, continue toStep 2.
    2. If your Brother machine's LCD displays a message other than the date and time, please refer to the FAQ about the message being displayed for further information.
  2. Verify the Brother machine's power cord is connected securely to the power outlet. If you are using a surge protector, extension cord, or power switch, disconnect it and plug the Brother machine directly into the wall outlet.
  3. If the Brother machine is turned OFF, its LCD will be blank. Please make sure the Brother machine is powered ON by pressing and holding theOn/OfforPower Savekey. This key is located in the upper-right corner of the control panel.
  4. If your Brother machine's LCD is still blank, connect it to a completely different, known working power outlet. If the Brother machine powers up, then the problem is related to the original outlet.

    -OR-

    Confirm the power outlet is working by plugging another known working device (a lamp, radio, etc.) directly into the same outlet. If the other device does not work, the problem is related to that power outlet. If a wall switch controls the outlet, verify that the switch is ON.
  5. If your Brother machine still will not power on, please contact Brother Customer Service.In Case You Still face Problem and Need Online Assistance Then Please Follow Us For On :
Brother Printer Support

Nov 14, 2013 | Brother MFC-J220 All-in-One Color Inkjet...

1 Answer

InMy LCD Screen is blank and cant see anything, can it be replaced where can i get one


yes it can but its not the lcd its firmware corrupted, i can help you to do fw if needed

Aug 19, 2011 | Konica Minolta bizhub C351 All-In-One...

1 Answer

Blank lcd screen only lights work,


software update would not do anything to restore the LCD's display, you need to have the phone repaired, it needs a replacement LCD.

Jul 04, 2009 | Samsung SGH-E251 Mobile Phone - Black

1 Answer

Screen not working


Lisa-

I am sorry to hear that the new sidekick 3 is not working for your son.

Is the screen white, blank, or just hard to see?

If white, then the flex cable needs to be reseated.

How to fix a blank white Screen on a Sidekick

If dark blank, then reseat the lcd assy itself and see if it works

Reseat the Sidekick 3 LCD Screen

If hard to see the screen, then the backlight is dead. A new screen is needed for that.

Replace the Sidekick 3 LCD Screen

I hope that helps

Feel free to contact me if you have questions

Dec 15, 2008 | T-Mobile Sidekick II

1 Answer

Ink Refill for HP Photosmart c7280 not working


Hi Lisa,

If it responds ok with the old cartridge then the problem is with the cartridges' chip not the printer. Probably the manufactor has a problem with certain cartridge chip (contact them!). I would suggest to use the original at the problematic spot if it works without a problem.

- Gilberto

Dec 15, 2008 | HP Photosmart C7280 Laser Printer

1 Answer

LCD Display on HP C5180 printer stopped working.


sorry but the display is probably still covered in puke inside. you will need to replace the whole display. or take it apart and clean it check that everything is ok and put it back in.

Nov 21, 2008 | Olympus P 400 Thermal Printer

1 Answer

Screen went blank


Sounds like you fried something by reversing the polarity. Repair will likely be expensive, but check with the manufacturer to find out if they have a flat-rate service charge, if so they will most likely replace it with a refurbished scanner.

Sep 25, 2008 | Radio Shack Pro-95 Handheld Scanner

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