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  1. #1
    Service Manager 1,000+ Posts
    MX-B402SC Duplex Jams

    guitar9199's Avatar
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    MX-B402SC Duplex Jams

    Hey kids...

    I have a slight puzzler. I'm working on a refurb of an MX-B402SC, and everything works like a champ on it, EXCEPT for duplexing!! The first document APPEARS to reach the first sensor in the right side door, but it almost seems like the drive never engages...and stops cold!! There's no damage to the lead edge of the paper. It almost seems like in the turnaround area, there's too much pressure on the paper coming out and the duplex rollers don't pull the page quickly enough!

    ...I've checked for any obstruction, idler rollers out of position/stuck, dirty feed rollers, loose drive belts, etc. I've not seen anything that jumps out at me as to why it's is acting like this.

    Open to all suggestions....

    Thanks in advance.

  2. #2
    Field Supervisor 500+ Posts
    MX-B402SC Duplex Jams

    mansart's Avatar
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    Re: MX-B402SC Duplex Jams

    Try SIM 7...... misfeed detect disable

    If paper passes, you are looking at a sensor issue, if paper still jams you are looking at a mechanical problem

  3. #3
    Service Manager 1,000+ Posts
    MX-B402SC Duplex Jams

    guitar9199's Avatar
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    Re: MX-B402SC Duplex Jams

    Sim 7 allows the machine to pass paper...

    I was hoping it was mechanical, as the first set of rollers in the upper right door, the front side bushing had come out the frame. I re-attached it, but to no avail.

    The jam code I'm seeing is APPD1_N, if that rings any bells for anybody.

    Happy Monday!

  4. #4
    Senior Tech 250+ Posts harleyrider's Avatar
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    Re: MX-B402SC Duplex Jams

    check TT-051816_1R1

  5. #5
    Service Manager 1,000+ Posts
    MX-B402SC Duplex Jams

    guitar9199's Avatar
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    Re: MX-B402SC Duplex Jams :SOLVED!

    We have a winner!!

    I went into Sim 09-02, and the sensor test showed ADU sensor 1 was not detecting paper. Replaced sensor 1, duplexing works.

    Leaving this out here in case anyone else has a similar issue!

  6. #6
    Senior Tech 250+ Posts harleyrider's Avatar
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    Re: MX-B402SC Duplex Jams

    My bad posted under the wrong problem. Long day.

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