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  1. #1
    Service Manager 1,000+ Posts
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    MPC 401sr random J018 and J019 JAMS

    HI
    I got this unit with 4 paper trays,150k that I swapped fuser for broken lock latch and jamming.
    I cleaned all feed rollers,transport rollers,reg roller and all sensors.
    I pulled drum,ITB unit and still i get random paper jams.
    I pulled and checked the black transfer roller unit and the top pop in guide on the right door.
    I cked duplex area for any odd items but all clean.
    It creases the paper and seems like the paper does not enter fuser evenly.
    I have yet to swap the whole right door but i cant really watch what happens b4 it starts to jam.
    anyone see this

  2. #2
    Senior Tech 100+ Posts aktasson's Avatar
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    Re: MPC 401sr random J018 and J019 JAMS

    Please attach the first and second page of smc list, sp-5-990-004.

  3. #3
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    Re: MPC 401sr random J018 and J019 JAMS

    hi
    what would i see outside of the J019 AND J018 JAMS
    it seems like the paper catches a burr or there is insufficient pressure
    on one side as the paper gets pulled thru reg rollers or fuser..It happens intermittent on tray 1 thru tray 4...

  4. #4
    Service Manager 2,500+ Posts TonerMunkeh's Avatar
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    Re: MPC 401sr random J018 and J019 JAMS

    Is the little junction gate holder broken at the top of the duplex?
    Computers are serious tools, Michael!

  5. #5
    Senior Tech 100+ Posts aktasson's Avatar
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    Re: MPC 401sr random J018 and J019 JAMS

    Quote Originally Posted by fshead View Post
    hi
    what would i see outside of the J019 AND J018 JAMS
    it seems like the paper catches a burr or there is insufficient pressure
    on one side as the paper gets pulled thru reg rollers or fuser..It happens intermittent on tray 1 thru tray 4...
    Why not? Perhaps, you could at least take a quick look at it.

    I had in my case a defective paper sensor. I have found it with SP Input Check.

  6. #6
    Service Manager 1,000+ Posts
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    Re: MPC 401sr random J018 and J019 JAMS

    Quote Originally Posted by TonerMunkeh View Post
    Is the little junction gate holder broken at the top of the duplex?
    thanks
    but no it is all in one piece and I have seen my share of these broken free.
    i have made a quick fix cutting out clear plastic
    support that i use PC7 epoxy to make a solid repair when the right side support breaks free.
    I am going to put my shop mpc401 back together and test a spare right side unit and run 150 copies b4
    wrapping it to carry on the subway.

  7. #7
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    Re: MPC 401sr random J018 and J019 JAMS

    Quote Originally Posted by aktasson View Post
    Why not? Perhaps, you could at least take a quick look at it.

    I had in my case a defective paper sensor. I have found it with SP Input Check.
    thnx but it is hitting something..
    not a false jam just stopping..

  8. #8
    How'd ya manage that? 500+ Posts zed255's Avatar
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    Re: MPC 401sr random J018 and J019 JAMS

    I had one where the registration guide was worn down to where the paper would catch the mylar attached to it.

    2019-03-27 13.15.00.jpg
    Zed
    One out of four people is mentally unbalanced.
    Think of your three closest friends...
    If they seem okay, then You're The One.

  9. #9
    Service Manager 1,000+ Posts
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    Re: MPC 401sr random J018 and J019 JAMS

    if you look it looks like it is barely catching something 3.5 from the rear side..........
    Attached Images Attached Images

  10. #10
    How'd ya manage that? 500+ Posts zed255's Avatar
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    Re: MPC 401sr random J018 and J019 JAMS

    See my prior post. This one hung me up because the fault was intermittent and I had not seen one of these worn like this prior.
    Zed
    One out of four people is mentally unbalanced.
    Think of your three closest friends...
    If they seem okay, then You're The One.

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