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Error 906 for mfp t642 - Lexmark T642 Laser Printer

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  1. Turn off the printer and let it sit for at least 10 minutes.
  2. Then power the printer back on.
    • If the error does not return, try printing a few print jobs. If the error still does not return, continue using the printer as before but keep an eye on it for the next few days. If the error does not return, it may have been an isolated incident.
    • If the error does return, you can perform an NVRAM reset on the printer. Note: Please do this only as a last resort before requesting service. Resetting the NVRAM on the printer will cause the printer to return all customer-defined settings to the factory defaults. To perform an NVRAM reset:
      1. Turn off the printer.
      2. With the printer still off, press and hold the following three buttons: Select, Go, and the right arrow (>) Menu button. All three of these are located on the printer's LCD screen.
      3. While holding the three buttons down, power on the printer.
      4. Continue holding these buttons until you see Performing Self Test, Clearing NVRAM, or Restoring Factory Defaults on the printer's LCD screen. You can then release the buttons.
      5. If the error does not return on power up, continue using the printer but keep an eye on it for the next week or two.
        • If the error does not come back, the printer should be fine.
        • If the error does return, the engine/system board will most likely need to be replaced.

Posted on Feb 06, 2009


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Posted on Jan 02, 2017


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