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Lexmark MX722

Lexmark MX722

Lexmark MS/MXx2x, B/MB2xxx, M/XMxxxx: 31.60z Reinstall Missing or Unresponsive Imaging Unit

ENUS6937

Affected Products:

Single-Function: B2338, B2442, B2546, B2650, B2865, M3250, M5255, M5270, MS321, MS421, MS521, MS621, MS622, MS725, MS821, MS822, MS823, MS825, MS826

Multifunction: MX321, MX421, MX521, MX522, MX622, XM1242, XM1246, XM3250, XM5263, XM5270, XM5365, XM5370, XM7355, XM7370, MB2338, MB2442, MB2546, MB2650

Issue Description:

The printer posts a 31.60z Reinstall Missing or Unresponsive Imaging Unit error message, where the letter "z" may be an A, C, D, E, F, G, H, T, U, or V

Solution:

  • 31.60A

  1. Install an imaging unit.

  • 31.60C, 31.60D, 31.60E, 31.60F, 31.60G, or 31.60H


Note:
This is a Smart chip error.

  1. Remove the toner cartridge and imaging unit and then reinstall the supplies.

  2. If the error message reappears, replace the imaging unit under warranty.

  • 31.60T, 31.60U, or 31.60V


Note:
This is a Capacitive Toner Level Sensing (CTLS) error.

  1. Remove the toner cartridge and imaging unit and then reinstall the supplies.

  2. If the error message is gone but comes back intermittently, the root cause is likely the imaging unit and should be replaced under warranty.
    Note:
    If a spare imaging unit is available, try swapping the supply to confirm a new imaging unit will fix the issue.

Still Need Help?

If the error message is not cleared by reinstalling the imaging unit or swapping with a spare imaging unit, please contact

Lexmark Technical Support and h

ave the following available:

  • Printer model(s)

  • Printer serial number

  • Toner/imaging unit/waste toner bottle part number and serial number

LEGACY ID: SO8668

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