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HP Error Er-11: Toner cartridge issue

Also shows as: Er/11, Er 11

✅ Usually fixable yourself

There is an issue with the toner cartridge.

What to try

  1. Make sure all shipping material has been removed from the cartridge.
  2. Check that the cartridge is compatible with the printer.
  3. Check that the cartridge is not damaged, and replace it if it is.

When it needs a technician

HP's table does not call for service for this code.

Which models show Er-11

HP documents this code for models including HP LaserJet Pro MFP M28-M31 series.

Varies by model: On HP Neverstop Laser MFP 1200 printers, Er/11 appears with the Toner Reload indicator blinking quickly, so the meaning may differ on those models.

First steps for any printer error

  1. Write down the exact code before you do anything else — similar-looking codes often mean completely different things.
  2. Power the printer off, unplug it for a couple of minutes, then power it back on. A surprising number of transient errors clear here.
  3. Open the covers and check for paper scraps, packaging material, or anything blocking the carriage.
  4. Check the cartridges or tanks are genuine, correctly seated, and not empty.
  5. Confirm the printer is plugged directly into a wall outlet, not a power strip or extension lead.
  6. Check your model’s own manual — codes are model-specific, and the manual is the authority for your machine.

Source: HP Customer Support - HP LaserJet Pro MFP M28-M31, Interpret control-panel light patterns. Codes are model-specific, so your own model's manual is the final word. Reviewed October 2026.

Still showing Er-11?

Tell our printer technician your model and what you've tried. You'll find out whether it's fixable at home or worth repairing at all.

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Eric Paul Amora · Printer & Hardware Repair Technician

Related HP codes

Er-01 — Input tray emptyEr-02 — Door openEr-03 — Paper pick failureEr-04 — Paper jam in input trayEr-05 — Paper jam in toner cartridge areaEr-06 — Paper jam in output binEr-07 — Toner cartridge missingEr-08 — Toner very low, set to stopEr-14 — Toner cartridge protectedEr-17 — Unauthorized toner cartridgeEr-30 — Flatbed scanner errorEr-50 — Print engine error

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