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Troubleshooting the 31.40 or 31.60 Error 'Reinstall Missing or Unresponsive Cartridge'

Document ID:SO7382

Usergroup :External
03/04/14 Properties  


What you will see

When the printer exits "Sleep Mode", it posts a 31.40 or 31.60 “Install Missing Cartridge” Error".

NOTES: For a Lexmark MS310 model, the light combination you will see that depicts the same error is the Exclamation point (!) and Toner Icon. LED lights are on steadily and not blinking. Click here to see illustration.

TIP: If error occurs at times other than after exiting “Sleep Mode”, please refer to Document ID: SO7334 for 31.4x error or  Document ID: SO7336 for 31.6x error.


Recommended solution

Follow these initial steps and see whether they eliminate the error:

  1. Remove the Toner Cartridge and Imaging Unit.
  2. Thoroughly shake the Imaging Unit.
  3. Re-seat both supplies back into the printer.



  • Confirm that you are using an original Lexmark brand toner cartridge. A third-party cartridge may not be compatible with the printer. If a third-party cartridge is installed, try an original Lexmark cartridge. NOTE: Should this replacement correct the issue, you will need to contact the point of purchase for questions about, or replacement of, the cartridge that caused the issue.
  • Confirm that this toner cartridge has not been refilled or reworked. If it has, try an original Lexmark cartridge. A refilled toner cartridge can trigger this error. Should the replacement correct the issue, contact the place where the other cartridge was refilled to have it replaced.

If the above steps were not able to clear the error, proceed with identifying the printer’s date code. The example image below shows the date code encircled in red. It is located on the sticker where the Serial Number is also printed. See How to Locate the Serial Number of the printer.

Click Image to Enlarge


Once you have the date code information, download the appropriate firmware depending on your printer model:

  • For models: M1145, MS310, MS410, MS510 & MS610, if the date code is prior to April 2013, download and install EC2 or the latest firmware update.
  • For models: MS610de, M3150, M3150dn, if the date code is prior to April 2013, first download EC1.1 firmware and then install it in the printer. After installing EC1.1, then download and install EC2 or the latest firmware update.
  • For models: MX310, MX410, MX510, MX511, MX610, MX611, XM1145 & XM3150, if the date code is prior to June 2013, download and install EC2 or the latest firmware update.
  • For models: MS71x, MS81x, MX71x, MX81x, M51xx, XM51xx & XM71xx, download and install EC2 or the latest firmware update.


How to download firmware

  1. Go to
  2. Type your printer model in the “Enter Product Name” field and click  OR click on the picture of the correct printer model shown.
  3. Locate the “Downloads” tab.
  4. Select the version of the Operating System.
  5. Click the link available under "Firmware".

After downloading the firmware, proceed with any of the methods below to perform the update.

Firmware Flash Methods Information
Embedded Web Server (EWS) Recommended Open a browser and enter the IP address of the printer. Select Settings > Update Firmware.
USB utility Click here for the detailed steps.
USB thumb drive Click here for the detailed steps.
FTP Click here for the detailed steps.
Printer File Loader
Click here for the detailed steps.



Still need help?

If you require additional assistance, please close this window and locate  Get In Touch with Lexmark! for contact information. NOTE: When calling for support, you will need your printer model/machine type and serial number (SN). Should you need help locating these, click here.

Please be near the products described in this article to expedite the support process and reduce callbacks.


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