Question about Kyocera Mita FS 3800 Laser Printer

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Kyocera 3820DN I just moved my printer.  Now when I turn it on it goes through the self test, but half way it says "check waste toner box" which goes away immediately because it is replaced by "paper Jam"

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  • 6 more comments 
  • Browes Dec 02, 2007

    I guess I should say that at this point it does nothing else but beep at me. I've checked all the paper jam spots and taken the thing apart and put it back together, but nothing. I've also removed the toner box and shaken it around and reattached it, still nothing.

  • Browes Dec 02, 2007

    Thanks for your help Soulvisitor. I cleaned the neck of the waste toner box, and that solved that problem, however, I am still getting a paper jam message. What are your thoughts.

    Thanks a ton, this is a big help.


  • Browes Dec 02, 2007

    I pulled the transport, but I do not see any paper in the back there.

    The display says
    Paper Jam

    Then when I push the question mark it says
    Open cassette 1 and
    pull out paper
    transfer unit,
    then remove
    the paper jam.
    Also, remove
    the paper jam
    rear cover.
    Close paper
    transfer unit.

    I'm going to now follow the steps from "remove toner. . ."

  • Browes Dec 02, 2007

    I can't figure out how to unplug the developer

  • Browes Dec 02, 2007

    figured it out

  • Browes Dec 02, 2007

    ok, now I'm at the part where I'm supposed to unplug display and click off the sides, but nothing is budging.

    Should I have also told you that This unit has the duplexer and an additional tray?

  • Browes Dec 02, 2007

    Update for when you get back. I followed all your instructions and striped it bare, took out the fuser. I didn't find any paper, so I reassembled everything, and now, with the unit not on top of the duplexer and extra tray, I powered it up and still got a paper jam error.

    thanks again for all this help.

  • Browes Dec 07, 2007

    I cleaned the two things that looked like eyes, and I'm not sure what switch you were referring. It still says there is a paper jam.



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If the neck of the waste toner box has toner on it it will think it is full wipe inside of neck stem with tissue.

Turn off and on, does waste message disappear? If it does and you still have jam problem post back and I will help you solve it too

Posted on Dec 02, 2007

  • 8 more comments 
  • Soulvisitor
    Soulvisitor Dec 02, 2007

    OK lets find that switch that is held down by paper or just stuck, my bet is there is paper concertinaed in fuser at rear, pull out paper cassette, then on right of machine is a lever that will release transport, this slide out 3/4 of the way but we want it out fully to do so press either sides of slides and pull the rest of way, look in there to the back can you now see the paper?

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    What show on display are we sure it is jam indicator

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    You can remove toner, then unplug developer plug inside where toner goes little plug, release lever that hold dev, pull it out, release transprt, remove waste toner bottle slide out drum to left.

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    Dont touch drum surface, cover it from light when removed

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    Two screw on lid remove top unplug display, sides click off, now you can see all there is to see, there is a switch near fuser exit and entry, also one on transport.. have fun, ussally fuser gets a paper wrapped around it, fuser has two screws at rear hlding it in and 3 plugs running threw sides to left rear and can then be removed

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    Yes to the duplexer being attached, machine needs to be sepaterated from this, two latchs at rear duplex comes off, machine lifts straigt off extra draw, power it up with out these options

  • Soulvisitor
    Soulvisitor Dec 02, 2007

    I should of noticed the DN option sorry my mistake, I'm off to work now will post later, thinking that toner has spilt into a photocell that switch uses to know when open or closed.

  • Soulvisitor
    Soulvisitor Dec 03, 2007

    On the left side of transport you will see two silver bits on switch arms, these line up with "eyes" in where it slides in, clean these photocells there is two of them, there is also a switch middle front machine frame check it works.

  • Soulvisitor
    Soulvisitor Dec 07, 2007

    It has to be one of the spaper path switchs/sensors stuck, or cover switch unable to be activated to enable reset. I think there is one cover on waste toner door and one cover on top cover, the rest are paper path switchs as laid out below, you will win in the end, very few

  • Soulvisitor
    Soulvisitor Dec 07, 2007

    board faults I have seen I these, they are/were tough reliable beasts they had 3 years onsite parts and labour and I find it impossible to remember ever changing any boards due to malfunctions. I've written a heap off from the expense of them needing new drums and devs. yours machine wants fuser exit sensor cleared it must be stuck/dirty/broke/diconnected or cover switch side/top



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