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HP LaserJet M1120, M1120n Printers - 'Supply Memory Error' Displays

This document is for HP LaserJet M1120 and M1120n Multifunction printers.
After you turn on the printer, a Supply Memory Error message displays on the printer control panel. The toner cartridge has an e-label error or a missing e-label, and the toner cartridge might not have full contact with the printer. To resolve the issue, remove and reinsert the toner cartridge, turn the printer off and on again, or replace the toner cartridge.

Step 1: Reinstall the toner cartridge

  1. Press the release button to open the toner cartridge door.
    Figure : Open the toner cartridge door
    Illustration: Opening the toner cartridge door
  2. Remove the toner cartridge.
    Figure : Remove the toner cartridge
    Illustration: Removing the toner cartridge
  3. Reinstall the toner cartridge, and then close the toner cartridge door. Make sure you press the toner cartridge until you hear a click.
    Figure : Reinstall the toner cartridge
    Illustration: Reinstalling the toner cartridge
    Figure : Toner cartridge fully seated in the product
    Illustration: Print cartridge fully seated
    Figure : Toner cartridge not fully seated in the product
    Illustration: Print cartridge not fully seated
If these steps resolved the issue, you do not need to continue troubleshooting.

Step 2: Reset the printer

  1. With the printer turned on, disconnect the power cord from the printer.
  2. Unplug the power cord from the power source.
  3. Wait 60 seconds.
  4. Reconnect the power cord to a wall outlet and to the printer.
    note:
    HP recommends plugging the printer directly into a wall outlet.
If these steps resolved the issue, you do not need to continue troubleshooting.

Step 3: Replace the toner cartridge

HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to the HP anti-counterfeit webpage (in English).
Follow these steps to replace the toner cartridge.
  1. Press the release button to open the toner cartridge door.
    Figure : Open the toner cartridge door
    Illustration: Opening the toner cartridge door
  2. Grasp the handle on the toner cartridge and then pull the toner cartridge straight out to remove it.
    Figure : Remove the old toner cartridge
    Illustration: Removing the old toner cartridge
  3. Remove the new cartridge from its package.
  4. Hold the new toner cartridge horizontally, and then gently rotate the toner cartridge from front to back to distribute the toner evenly.
    Figure : Rotate the new toner cartridge
    Illustration: Rotating the toner cartridge
  5. Remove the orange cover from the new toner cartridge, and then pull the orange tab straight out to remove the seal.
    Figure : Remove the toner cartridge seal
    Illustration: Removing the toner cartridge seal
  6. Insert the toner cartridge into the product until it locks into place, and then close the toner cartridge door.
    Figure : Insert the new toner cartridge
    Illustration: Inserting the new toner cartridge
If these steps resolved the issue, you do not need to continue troubleshooting.

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