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  1. #1
    Service Manager 1,000+ Posts Bix's Avatar
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    JAM DF-629 Bizhub C258 66-33

    Hello,
    I would like to consult with you about a problem I have with a DF. It is the model DF-629, installed in a bizhub C258 that has only 2 months of life. When the scan starts, the jam code 66-33 exits. I thought of an obstruction but inside I did not find anything.

    By removing the covers, I have noticed that a motor does not turn to rotate the 3 rubber rollers.

    In your opinion could it be some sensor? Engine failed?

  2. #2
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    Make sure those white driven rollers have there springs installed correctly.
    Whatever

  3. #3
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    I have done a load check of the DF engines.


    First I tried M2 and then M3. I have found that M2 runs smoothly while M3 is activated, makes a strange noise as if it were turning but not turning. I also tried to remove it from the gears and keep making noises without turning.


    I think the flaw is this. The strange thing is that a new DF, maybe a flaw.

  4. #4
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    It could then be the motor the motor cable or the motor driver if the motor is buzzing and not turning there is otherwise not enough current to the motor or one of the phases is missing.
    Most probably a bad PCB. Or whatever else.

    Swap the cables around to test the motor.
    Whatever

  5. #5
    Master Of The Obvious 10,000+ Posts
    JAM DF-629 Bizhub C258 66-33

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    Re: JAM DF-629 Bizhub C258 66-33

    I know this won't be an easy disassembly, but in cases like this I usually remove the motor from it's mount but keep it plugged in, then initialize the machine.

    If there is excessive drag on the drive, the motor will spin fast and quietly. If it still turns slowly or buzzes, you can be sure that its not mechanical drag, leaving either the motor connections, harnesses, or DF controller.

    I've specifically seen a pinched motor wire cause slow rotation and buzzing. Also a bad driver circuit, or loose connector. Much more rarely, I've seen another component shorted, that runs off the same leg of the DC Power Supply. Let's hope its not that. It's very difficult to diagnose.
    =^..^=
    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 =^..^=

  6. #6
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    Hello,
    first of all, thank you for your help! I removed the engine and installed the new one. Unfortunately I had the same problem.

    I moved the DF to another Bizhub C258 and from the same problem, so I think it will not be due from the machine but from the DF.
    At this point, I'll try replacing the DF Controller card to see if it's her.


    I will let you know. Thanks again

  7. #7
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    Update: replaced the DF board.

    Now it's works!

  8. #8
    Master Of The Obvious 10,000+ Posts
    JAM DF-629 Bizhub C258 66-33

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    Re: JAM DF-629 Bizhub C258 66-33

    Thanks for posting back. =^..^=
    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 =^..^=

  9. #9
    Senior Tech 100+ Posts escalante's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    In the solution guide of the Bizhub 423 does not indicate the following:

    Frequent jam code 6633 when scanning. 3. The Registration clutch (CL2 ) harness or wiring harness from clutch to Document Feeder Control Board (DFCB) rubs agains the sharp metal frame and damages the wire/clutch. Ensure the wire is not pinched or rubbing on the frame. Repair clutch wiring or replace CL2 (p/n A143 PP75 00), Wire Harness assembly (p/n A143 PP8M 01) or possibly the DFCB (p/n A143 PP7Y 00). Note : If clutch is repaired/replaced and the jam code persists, check for a poor connection (J16) or an OPEN ICP (F9) on the DF Control Board.

    I hope it helps you solve your fault.

    Enviado desde mi SM-J701M mediante Tapatalk

  10. #10
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: JAM DF-629 Bizhub C258 66-33

    Check that ICP could then have a spare board to store.
    Doing a warranty claim?
    Whatever

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