Question about Brother MFC-8840D All-In-One Laser Printer

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DX Lever Error

What does that mean? how do I fix?

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  • bonfiregrand Jun 21, 2008

    what is the duplex lever

  • Anonymous Jun 24, 2008

    on which part of the machine we can find

    DX lever

  • ishika Jun 25, 2008

    i have a Dx Lever error in my machine, so i cant do the photocopy, please can you help me out ... how can i fix and start doing th photocopy....

  • ishika Jun 25, 2008

    i cant do back to back photocopy, not even fax and not even printing... so what is the solution ........

  • Anonymous Apr 29, 2009

    This was amazingly helpful!!  Problem solved.  Thanks - mml



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This message indicates that the Duplex Lever is located incorrectly. To clear this error message, please check the location of the Duplex Lever and relocate it to the correct position.

DX Lever Error - dxlever1.jpg

Posted on Jun 21, 2008


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Where is the dx lever?

There is a lever on the back of the machine. I had this same error message, and I just moved the lever to the opposite side. The first time I moved it, items printed on single side still in the cue came out. Immediately after it printed, the DX lever message appeared on the error screen again. I went back and switched to to the other side, and then my duplex copies in the cue started to print. So far so good. Somehow the duplex feature was manually shut off. My husband was printing office checks at the time, so this might have triggered something, since the checks cannot be printed in duplex mode.

The Brother is a little clunky of a machine. So...even though the duplex lever in the back isn't marked, and I couldn't find the info in the user manual...this seems to be the only thing that's manually adjustable on the machine.

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