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Thread: C-DO12 error

  1. #1
    Senior Tech 100+ Posts
    C-DO12 error


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    C-DO12 error

    I was rewriting the drive to attempt to fix a job fail issue.... I conducted a format and received this code. The Fax unit was removed by my old tech as a horse trade because he needed it for another job and I would never use it.

    I believe now after the Format the printer is looking for it, How do I keep the start up from looking for it?

  2. #2
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    Re: C-DO12 error

    In service mode, I believe in system 1, option board unset fax 1

    Sent from my LG-H831 using Tapatalk

  3. #3
    Field Supervisor 500+ Posts B0265's Avatar
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    Re: C-DO12 error

    Did you do a logical format of the HDD?

  4. #4
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    C-DO12 error


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    Re: C-DO12 error

    Quote Originally Posted by B0265 View Post
    Did you do a logical format of the HDD?

    Nope physical. Do I need to update firmware? I have no idea how to do that.

  5. #5
    Certified Konica Expert 2,500+ Posts
    C-DO12 error

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    Re: C-DO12 error

    As mentioned above turn off fax circuit 1
    Also a logical format is in order. It only takes like 2 minutes. The physical one takes hours.
    Then make sure hdd is turned on in service mide.
    Reinstall movie data.
    That should be it unless the HDd is no good.
    Never do a physical format. Waste of time.

  6. #6
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    C-DO12 error

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    Re: C-DO12 error

    I have looked through several service manuals and failed to find a C-D012 error code. What machine are you dealing with.
    For your own information C-D codes are related to HDD and C-B codes are related to fax.
    I suggest you do a logical format and install movies data as synthohol suggested. That should fix it up.

  7. #7
    Senior Tech 100+ Posts
    C-DO12 error


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    Re: C-DO12 error

    Quote Originally Posted by copier addict View Post
    I have looked through several service manuals and failed to find a C-D012 error code. What machine are you dealing with.
    For your own information C-D codes are related to HDD and C-B codes are related to fax.
    I suggest you do a logical format and install movies data as synthohol suggested. That should fix it up.



    I did a failed attempt to update the firmware and the issue resolved itself. So weird.

  8. #8
    Field Supervisor 500+ Posts B0265's Avatar
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    Re: C-DO12 error

    Quote Originally Posted by swaggen View Post
    Nope physical. Do I need to update firmware? I have no idea how to do that.
    You must do the logical format after the physical.

  9. #9
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    Re: C-DO12 error

    A late reply but someone might need it

    What i do to fix this code is:
    1- unset the fax unit
    2- do a logical format for the HDD
    3- uninstall the HDD
    4- turn off then on the machine
    5- install the HDD back

    And that's it, it should fix the code 😊

  10. #10
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    Re: C-DO12 error

    Quote Originally Posted by Asaadahmed003 View Post
    A late reply but someone might need it

    What i do to fix this code is:
    1- unset the fax unit
    2- do a logical format for the HDD
    3- uninstall the HDD
    4- turn off then on the machine
    5- install the HDD back

    And that's it, it should fix the code 😊
    No such luck. Any other ideas?

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