Question about Ricoh Aficio AP3800C Laser Printer

2 Answers

Remove Misfeed B Fusing Unit Error- After 1 page is printed

We are getting this paper jam error Remove Misfeed B Fusing Unit, but I can't actually find anything jammed. Sometimes I am able to reset, and it will print one page, but the error is shown as soon as the page is output, even though no jam occurs.

Any clues?

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  • 3 more comments 
  • SimonCC Apr 26, 2008


    Can you point me in the direction of where the sensors/levers are?

    Am I looking on the fusing unit itself or somewhere else?



  • SimonCC Apr 29, 2008

    Getting paper jam messages in Fusing unit area even though there is no jam. First page comes out then error shown. If this is a switch or sensor problem, then I am wondering whether this is on the Fusing unit itself, or somewhere else on the printer.

    Need some guidance as to where these sensors/switches are, that could report a false jam.

  • SimonCC Apr 29, 2008

    I have the fusing unit out on the desk, any clues as to where the roller pin is and what it looks like? I can turn the blue knob on the side of the unit, and the orange belts rotate freely.

  • SimonCC Apr 29, 2008

    Fuser Oil unit comes out fine, can't see any problems either side of this.

    Error shows as soon as the printer is switched on now. So the fault condition is now permanent.

  • SimonCC Apr 29, 2008

    Error shown is Remove Misfeed B Fusing Unit. Only reset done is to switch unit off and on, close covers as stated in display panel.



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With the indulgence of pagebor,

It would seem that the "paper jam error" is common with this model. Apparently, the roller pin on the fuser unit is the culprit. The roller pin could be loose or even dislodged.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Apr 29, 2008

  • 2 more comments 
  • Louie  Role
    Louie Role Apr 29, 2008

    Hi again,

    Appreciate the postback. Could check if you could separate the fuser oil unit from the fuser unit? If yes, then it would be on the left and right of fuser oil unit. Both ends has roller pin that has to fit just right with no wobble, looseness or misalignment. This document might help you in the removal (page 7).

  • Louie  Role
    Louie Role Apr 29, 2008

    What is the exact error or status message pls? have you done again a reset?

  • Louie  Role
    Louie Role Apr 29, 2008

    Thanks for your reply. Based on the error message, you are on the right track on focusing on the fuser unit. To my knowledge, the blue knob maybe turned freely as you have indicated, but the fuser oil unit should have some resistance.

    Unfortunately, the only available option now is to remove/open the fuser unit again. The alternative is to replace the fuser unit assembly.

  • Louie  Role
    Louie Role Apr 29, 2008

    In a similar problem, it turned out that a pair of gears were not meshing together properly caused by one of them that has a crack. When tested manually, checks OK, but when under load (pulling/pushing paper) partially opens.


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Just open the printer and check for any dislocation of the sensor or levers.

Posted on Apr 26, 2008


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