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  1. #1
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    Kyocera 5050 Error (C7900)

    Km 5050 displays C7900. I have changed everything like new drum unit, new boards (engine and main) , checked the wiring section but still the problem is not solved. Im fed up of this problem if someone knows plz help

    Sent from my ONEPLUS A3003 using Tapatalk


  2. #2
    Field Supervisor 500+ Posts Phil B.'s Avatar
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    Re: Kyocera 5050 Error (C7900)

    Quote Originally Posted by kataria2013 View Post
    Km 5050 displays C7900. I have changed everything like new drum unit, new boards (engine and main) , checked the wiring section but still the problem is not solved. Im fed up of this problem if someone knows plz help

    Sent from my ONEPLUS A3003 using Tapatalk
    what does the manual say is the issue?


  3. #3
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    Re: Kyocera 5050 Error (C7900)

    C7900 Drum unit EEPROM error Reading from or writing to EEPROM cannot be performed.Remarks : Check the connection of connector on the engine PWB and the continuity across the connector terminals. Repair or replace if if necessary. Replace the drum unit. Causes :

    Sent from my ONEPLUS A3003 using Tapatalk


  4. #4
    Field Supervisor 500+ Posts Phil B.'s Avatar
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    Re: Kyocera 5050 Error (C7900)

    Quote Originally Posted by kataria2013 View Post
    Km 5050 displays C7900. Im fed up of this problem if someone knows plz help
    welcome to the tech world.


  5. #5
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    Re: Kyocera 5050 Error (C7900)

    Sir is there any solution to this?

    Sent from my ONEPLUS A3003 using Tapatalk


  6. #6
    Master Of The Obvious 10,000+ Posts
    Kyocera 5050 Error (C7900)

    blackcat4866's Avatar
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    Re: Kyocera 5050 Error (C7900)

    Have you changed the drum unit? That's the only cause I've ever seen. If that didn't do it, then the engine PWB. =^..^=

    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.


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

  7. #7
    Senior Tech 250+ Posts Geo's Avatar
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    Re: Kyocera 5050 Error (C7900)

    Quote Originally Posted by kataria2013 View Post
    Km 5050 displays C7900. I have changed everything like new drum unit, new boards (engine and main) , checked the wiring section but still the problem is not solved. Im fed up of this problem if someone knows plz help

    Sent from my ONEPLUS A3003 using Tapatalk
    You may be using the wrong drum unit. If memory servers me correctly the 4050/5050 takes a DK 716. The 3050 takes a ( DK 715) and it will fit but throw a code . This was a common mistake.

    Good luck.

    Last edited by Geo; 07-20-2017 at 12:35 PM.

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