Question about Canon MP520 All-In-One InkJet Photo Printer

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Blank LCD display screen

LCD display screen intermittently has no display. What is the cause and the solution

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  • Anonymous Mar 08, 2009

    I have the same problem. Intermittent display on the LCD. I took the side panel off the printer and discovered it was a fault inside the ribbon cable connecting the LCD to the printer, probably caused by bending the cable each time the LCD panel is raised and lowered. The cable is built into the LCD unit, so does not appear to be possible to replace the cable. Looks like a design fault.

  • cece7652 Apr 05, 2009

    Hi - I'am having the same problem - it just started a few days ago - how did you remove the side panel and were you able to fix the issue? pls contact me at

    Thank you -

  • Anonymous Apr 24, 2009

    because of suddne city blackout, now the lcd, is only blank white

  • Anonymous May 05, 2009

    openb the lid cover by lift it and push it forward, lift the black attachment where the ribbon cable ends, and re attached the cable, for the back lid cover, near the intersection of front lid, lift it and push it backward, the green cable attachment can be lift it also, good luck, mine already worn out the cable .. so it cant be done by this fix


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You need to check firstly that the LCD connections are still connected correctly inside the printer and then you can enter service mode on the printer and run an LCD test. To open printer and run test you will need a service manual:

Posted on Dec 05, 2008

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Here is the solution

Thanks to Berurier he gave us this trick from MP520

Posted on Sep 11, 2010

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