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Thread: BZ958 J3205

  1. #1
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    BZ958 J3205

    Hi all.

    I have a 958 that gets a J3205 after a run of about 400 duplex prints of A4 portrait.
    The paper appears to stop in the exit area on the second side.
    I have so far replaced the exit/reverse unit, the adu assembly and the upper exit unit in the rh door.
    Its strange in that it will run 1-250 ok then the jamming starts and gets progressively worse.
    No Matter what I adjust it’s always the same.
    Has anyone experienced this?
    Any suggestions would be welcome.

    Thanks.

  2. #2
    Service Manager 5,000+ Posts tsbservice's Avatar
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    Re: BZ958 J3205

    Quote Originally Posted by tech51 View Post
    Hi all.

    I have a 958 that gets a J3205 after a run of about 400 duplex prints of A4 portrait.
    The paper appears to stop in the exit area on the second side.
    I have so far replaced the exit/reverse unit, the adu assembly and the upper exit unit in the rh door.
    Its strange in that it will run 1-250 ok then the jamming starts and gets progressively worse.
    No Matter what I adjust it’s always the same.
    Has anyone experienced this?
    Any suggestions would be welcome.

    Thanks.
    Didn't had that but seems to remember member here from Australia battled something similar and it ended he/or another tech previously swapped unit from bh758 looking equal but not exactly.
    @rrrohan can you elaborate?


    Another thought: heat accumulation may contribute here for something to slow/drag enough causing timing issue.
    Last edited by tsbservice; 02-06-2023 at 07:53 PM.
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  3. #3
    Certified Konica Expert 2,500+ Posts
    BZ958 J3205

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    Re: BZ958 J3205

    check the duplex belt.

    i added shim at bottom.




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  4. #4
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    BZ958 J3205


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    Re: BZ958 J3205

    Quote Originally Posted by tsbservice View Post
    Didn't had that but seems to remember member here from Australia battled something similar and it ended he/or another tech previously swapped unit from bh758 looking equal but not exactly.
    @rrrohan can you elaborate?

    A795R74600 ADU Assy B758
    A796R72000 ADU Assy B958

  5. #5
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    Re: BZ958 J3205

    Quote Originally Posted by Synthohol View Post
    check the duplex belt.

    i added shim at bottom.





    Is the motor located in the right side door with the registration unit in it?

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    Re: BZ958 J3205

    upper right hand side when staring at door.


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  7. #7
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    Re: BZ958 J3205

    Do you think replacing the belt would help?

  8. #8
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    Re: BZ958 J3205

    Quote Originally Posted by tsbservice View Post
    Didn't had that but seems to remember member here from Australia battled something similar and it ended he/or another tech previously swapped unit from bh758 looking equal but not exactly.
    @rrrohan can you elaborate?


    Another thought: heat accumulation may contribute here for something to slow/drag enough causing timing issue.
    yeah 758 and 958 taking different units

    but there seem to be so many things that can cause this jam its inlikely that in his case.

    Funnily enough 3205 jam on a C759 is my first job tomorrow

  9. #9
    Certified Konica Expert 2,500+ Posts
    BZ958 J3205

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    Re: BZ958 J3205

    Quote Originally Posted by Markks View Post
    Do you think replacing the belt would help?
    the belt is fine, the plate the motor is mounted on may be skewed or bent and adding the shim changed the angle of the motor gear to pull the belt on the shaft not repel it.
    We know a thing or two because we've seen a thing or two.
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