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  1. #1
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    Brother 8910DW Print Unable EF

    Good morning. I have two of these in the same office that have this error message, and I was told they both began doing so after a power outage. The information I was able to find suggested replacing the low power PCB, so I ordered those, and replaced it on one of them, but the error message remained. The same source said that if the low power PCB didn't solve the issue that the main PCB would also need to be replaced. If any of you have any experience with this problem, any suggestions would be welcome.

  2. #2
    Service Manager 5,000+ Posts
    Brother 8910DW Print Unable EF

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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by ProAm View Post
    Good morning. I have two of these in the same office that have this error message, and I was told they both began doing so after a power outage. The information I was able to find suggested replacing the low power PCB, so I ordered those, and replaced it on one of them, but the error message remained. The same source said that if the low power PCB didn't solve the issue that the main PCB would also need to be replaced. If any of you have any experience with this problem, any suggestions would be welcome.
    if you intend on working on these yo WILL need the service and parts manuals

    <User Check>
    • Turn OFF the power switch. After several seconds, turn ON the power again and check
    that this error is reset.
    Step Cause Remedy
    1 Low-voltage power supply PCB
    failure
    Replace the low-voltage power supply PCB
    ASSY, and then reset the irregular power
    supply detection counter.
    2 Main PCB failure Replace the main PCB ASSY.

  3. #3
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: Brother 8910DW Print Unable EF

    Also to add to what Brother Phil posted, it will be good measure to ask the user to review the installation environment.
    If the wall power source is bad, even with new board problem may reiterate.
    Last edited by tsbservice; 02-11-2020 at 05:35 PM.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  4. #4
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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by Phil B. View Post
    if you intend on working on these yo WILL need the service and parts manuals

    <User Check>
    Turn OFF the power switch. After several seconds, turn ON the power again and check
    that this error is reset.
    Step Cause Remedy
    1 Low-voltage power supply PCB
    failure
    Replace the low-voltage power supply PCB
    ASSY, and then reset the irregular power
    supply detection counter.
    2 Main PCB failure Replace the main PCB ASSY.
    Thanks, but I found that, replaced the low voltage PCB, and did a machine reset, so it looks as though I need to replace the main PCB. I also moved this unit across the room and plugged it in to another outlet, no change.

  5. #5
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    Re: Brother 8910DW Print Unable EF

    Now I see that the manual mentions an irregular power supply reset that involves connecting to the printer with a USB cable and running an executable (!). But I don't see this executable listed on the downloads page for this model?

  6. #6
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by ProAm View Post
    Now I see that the manual mentions an irregular power supply reset that involves connecting to the printer with a USB cable and running an executable (!). But I don't see this executable listed on the downloads page for this model?
    Those are under Service Tool section in Brother service site.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  7. #7
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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by tsbservice View Post
    Those are under Service Tool section in Brother service site.
    I guess I'll have to kick this upstairs then. Thanks

  8. #8
    Service Manager 5,000+ Posts
    Brother 8910DW Print Unable EF

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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by ProAm View Post
    I guess I'll have to kick this upstairs then. Thanks
    Email me

    Sent from my SM-G960U using Tapatalk

  9. #9
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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by tsbservice View Post
    Also to add to what Brother Phil posted, it will be good measure to ask the user to review the installation environment.
    If the wall power source is bad, even with new board problem may reiterate.
    The unit is located at a public school in Clearlake CA, and they've had numerous recent power outages due to PG&E. I don't think the engineers anticipated an environment where a public utility would neglect their infrastructure to the point where the best way to prevent a fire on a windy day is to shut down power on extensive portions of the grid.

  10. #10
    Service Manager 5,000+ Posts
    Brother 8910DW Print Unable EF

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    Re: Brother 8910DW Print Unable EF

    Quote Originally Posted by ProAm View Post
    The unit is located at a public school in Clearlake CA, and they've had numerous recent power outages due to PG&E. I don't think the engineers anticipated an environment where a public utility would neglect their infrastructure to the point where the best way to prevent a fire on a windy day is to shut down power on extensive portions of the grid.
    Sounds like instead of a surge they need a line conditioner.

    Sent from my SM-G960U using Tapatalk

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