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  1. #1
    Senior Tech 100+ Posts selmila's Avatar
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    C 280 k drum install error

    hi,
    i am unable to recover K drum unit install screen in one of my customer C 280 machine. i have replaced the K drum unit with new and also the pwb mc! the machine stuck at K drum unit install screen. any suggestions to recover the machine.

  2. #2
    Step aside, noob 1,000+ Posts EarthKmTech's Avatar
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    Re: C 280 k drum install error

    make sure the contact unit that swings up with the lever to touch the chip on the bottom of the drum unit is not damaged or any of its pins bent.

    you can also check wire for wire back to the PRCB to make sure there are no breakages in the harness. (mad skills required)

  3. #3
    Master Of The Obvious 10,000+ Posts
    C 280 k drum install error

    blackcat4866's Avatar
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    Re: C 280 k drum install error

    Quote Originally Posted by EarthKmTech View Post
    make sure the contact unit that swings up with the lever to touch the chip on the bottom of the drum unit is not damaged or any of its pins bent.

    you can also check wire for wire back to the PRCB to make sure there are no breakages in the harness. (mad skills required)
    Pinouts are my favorite. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  4. #4
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: C 280 k drum install error

    I made a nifty little tool. I can plug a chip straight into the relay board and run the machine. It eliminates the contact. and is helpful in resetting the drum counter.

    Pin 1 and 3 is the circuit blowing the ICP on the chip and pin 2 is to detect the presence of the IU.

  5. #5
    Senior Tech 100+ Posts selmila's Avatar
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    Re: C 280 k drum install error

    I have replaced the PRCB and it start working for the first copy and then the same drum error shows on the screen. I have also checked the contacts and the wiring it all looks ok.20150729_130712.jpg

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