mf 424 jams duplexing only

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  • mrfixit7
    Technician
    • Jul 2018
    • 40

    #1

    mf 424 jams duplexing only

    machine jams going into duplex unit. single sided prints fine
    duplex copies half a ream then hits lead edge coming back into duplex guide area at top right.
    is there an upgrade part or tech pub on this ???
    Possibly moisture issue? PAPER has very light curl very typical looking though
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