'34 Improper Media' Error Message on the Lexmark C925 and X925 Series Printers

Select Continue to clear the message and continue printing. Did the error message return?

Yes: Continue to Step 2.No: Resend the print job to the printer. If the page prints, the printer is functioning correctly.

Note: The printer does not automatically reprint the page that prompted the message.

Pull the tray out of the printer and look to see if any paper is in the tray. If the specified tray is low or out of paper, then please reload the tray with the specified paper type and size.

Note: Make sure the paper is flat and not curled. Feed problems can occur if the leading edge of the paper stack is not flat. Flex the sheets back and forth to loosen them, then fan them. Do not fold or crease the paper. Straighten the edges on a level surface.

Once paper is loaded into the tray, check the tray length and width guides to ensure the paper is properly fitted. (See red in right-hand image).

Note: Tray 1 does not have "Auto Size Sensing" like the other trays. Ensure the wheel on tray is set to the correct size (

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Ensure the print job is requesting the correct size of paper. Resend the print job to the printer. Did the error message return?

Yes: Continue to Step 5.No: If the page prints, the printer is functioning correctly.

Note: Verify that the printer supports the paper you are using in terms of size, weight, and input source. For more information on recommended paper types, please refer to the User's Guide.

Using the printer operator panel, verify that the size and type of paper loaded in the paper tray matches the Paper Size and Type settings in the Paper Menu. (The User's Guide provides detailed instructions for navigating through the printer menus and changing the paper settings.)

Note: If printing from the Multi-Purpose Feeder (MPF), ensure that the MP Feeder Size is set to Universal. Make sure the paper is large enough for the formatted data.

Resend the print job to the printer. Did the error message return?

Yes: Continue to Step 7.No: If the page prints, the printer is functioning correctly.

Are you printing on regular plain bond copy paper? If not, try printing again with plain copy paper. This will eliminate specialty media as a possible partial cause of the issue. (Certain specialty paper, label stock, and card stock, etc., are more difficult for the printer to feed and therefore more prone to this type of issue.) Resend the print job to the printer. Did the error message return?

Yes: If the error persists, a service action may be required in order to correct the issue. For assistance in setting up service, please contact Lexmark Technical Support or a local authorized service provider.No: If the page prints, the printer is functioning correctly. Pay close attention to the printer over the next few days, however, to see if the issue returns.