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

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Where is the dx lever?

Your answer provided on 6/21/08 was not at all clear. A previous user asked where the dx lever was located on the machine and your answer was to locate the dx lever on the machine. Doesn't make sense that you would respond that way. You didn't answer the question which I'm very interested in because I now have the very same issue.

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  • amato Sep 15, 2008

    I don't know where the duplex lever is... so I cannot put it in the correct position to clear the duplex lever error.

  • Anonymous Jan 03, 2009

    I have tha same problem.



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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.

Hope this helps!

Posted on Nov 11, 2008


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DX Lever Error

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.


Jun 21, 2008 | Brother MFC-8840D All-In-One Laser Printer

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