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  1. #11
    Professional Moron 2,500+ Posts TonerMunkeh's Avatar
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    Re: Ricoh MP C4000 duplex jam

    Replace D029 4580.
    It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

    Hit it.

  2. #12
    Service Manager 1,000+ Posts
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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by TonerMunkeh View Post
    Replace D029 4580.
    Read carrefully the description of the problem.

  3. #13
    Professional Moron 2,500+ Posts TonerMunkeh's Avatar
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    Re: Ricoh MP C4000 duplex jam

    I did read the problem carefully, in my experience Jam 024 is caused by that part being warped by the heat of the fuser.
    It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

    Hit it.

  4. #14
    tech88
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    Re: Ricoh MP C4000 duplex jam

    if no dog earing clean the front 2 oneway bearings and 1 rear on duplex unit

  5. #15
    Service Manager 1,000+ Posts
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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by TonerMunkeh View Post
    Replace D029 4580.
    Dear T.M.: i have replaced it, have tested it, and it seems fine. But:
    1. i thougt the problem was in the DF (when i unplugged the DF connector, it worked fine for a week)
    2. then jams in duplex ONLY when color is selected (so we have put off the user limitation of color; worked fine for 1 week).
    3. then jams in duplex both color and B&W: swaped the IOB board (totaly no good)
    4. Replaced the "open/close cover" today. Fine untill now...
    I doubt it would be the solution.
    F.i., if it was a bad switch in the machine then it would give "jam at power on", but it gives jam at junction gate pawl 24...
    It is not always jamming, but when it starts, it don't stop, untill "something" is replaced or switch off.
    I think the problem is warm-related.
    I'll keep you informed.

  6. #16
    Senior Tech. 2,500+ Posts NeoMatrix's Avatar
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    Re: Ricoh MP C4000 duplex jam

    Are the Bridge cover switchs are toggling?

    Test:
    Slightly tap the bridge unit while doing a multi run.
    Inauguration to the "AI cancel-culture" fraternity 1997...
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  7. #17
    Retired 10,000+ Posts
    Ricoh MP C4000 duplex jam

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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by NeoMatrix View Post
    Are the Bridge cover switchs are toggling?

    Test:
    Slightly tap the bridge unit while doing a multi run.
    Same push buttons that fail in the bridge unit. I usually just shakely the machine while idle and see ii get any door open beeps.

  8. #18
    Not a service manager 2,500+ Posts Iowatech's Avatar
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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by Mark Bbb View Post
    I'm having exact the same issue:
    - One side no problem.
    - Duplex jams always on FIRST SIDE (without folding) in the exit area of the main frame.
    - Jam indic = 24
    - sp5804-144 exit junction solenoide operation = 100% ok
    - also the junction gate guide pawl itself is pushed enough to the left, so there is no gap for the paper to catch behind (and jam)

    When removing the front upper panel (and the fan) the junction solenoide is visible, and this happens when we push the start button:
    - solenoide is activated and pull the junction gate pawl away to it's proper position.
    - paper is feeded
    - and all of a sudden (and for a reason i don't understand) solenoide is de-activated, causing paper feeding to the exit (causing jam indication).

    That is the problem.
    Anyone?
    Greetings.
    Did you try using the info that was already on this thread to fix that problem? If not, please do that now.
    Otherwise, please start a new thread in the Ricoh forum, as replies to old threads generally are not followed that well. It's kind of a thing when there's so many brand new requests for help.
    Thanks.
    Last edited by Iowatech; 07-03-2018 at 02:54 AM. Reason: Needed to replace confusion with information.

  9. #19
    Service Manager 1,000+ Posts
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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by NeoMatrix View Post
    Are the Bridge cover switchs are toggling?

    Test:
    Slightly tap the bridge unit while doing a multi run.
    Dear Matrix:
    i have forgotten to mention: I did have removed the B.U. and the finisher, but it's no good, the problem remains!
    I realy hope it is solved with the guide !!!!
    But hoping is not enough....
    Praying, won't help...
    light a candle, either...
    Give flowers to my mother in law,...
    I'd rather wait....

  10. #20
    Senior Tech. 2,500+ Posts NeoMatrix's Avatar
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    Re: Ricoh MP C4000 duplex jam

    Quote Originally Posted by Mark Bbb View Post
    Dear Matrix:
    i have forgotten to mention: I did have removed the B.U. and the finisher, but it's no good, the problem remains!
    I realy hope it is solved with the guide !!!!
    But hoping is not enough....
    Praying, won't help...
    light a candle, either...
    Give flowers to my mother in law,...
    I'd rather wait....
    You didn't give mum-inlaw a big hug....

    Try unplugging the old tray full exit sensor;leave the plug off permanently.
    The T/F sensor collects dust and toggles on/off.
    Inauguration to the "AI cancel-culture" fraternity 1997...
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