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  1. #1
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    Unhappy need help Bizhub C550 shows lights when turned on but display is blank

    Bizhub C550 shows lights when turned on but display is blank and printer does not initialized doesnt do anything just lights up mainboard light is steady board next to it keeps flashing start button on the display stays red

  2. #2
    Service Manager 1,000+ Posts
    need help Bizhub C550 shows lights when turned on but display is blank


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    Re: need help Bizhub C550 shows lights when turned on but display is blank

    I forgot to plug in that large silver connector by the network port back in after dismantling copier years ago and I got this symptom

    Sent from my Pixel 4 XL using Tapatalk

  3. #3
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: need help Bizhub C550 shows lights when turned on but display is blank

    Yea start tugging on connectors.
    Whatever

  4. #4
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    Re: need help Bizhub C550 shows lights when turned on but display is blank

    thanks guys but doesnt work so next is to reload the firmware and this seems like it wont be easy

  5. #5
    Service Manager 500+ Posts femaster's Avatar
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    Re: need help Bizhub C550 shows lights when turned on but display is blank

    Quote Originally Posted by Kai360 View Post
    Bizhub C550 shows lights when turned on but display is blank and printer does not initialized doesnt do anything just lights up mainboard light is steady board next to it keeps flashing start button on the display stays red
    If I remember correctly, on this model, you could get this symptom if one of the memory (RAM) sticks went bad. There should be 2 mounted to the board, swap them around. If the copier then boots up normally but you can't select anything on the touch screen (it is unresponsive) you have confirmed a bad stick of memory.
    Ricoh Service Tech for 7 year. Currently a Konica Minolta Service Tech for the last 7 years.
    My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

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