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HP Error 21: 21.xx print failure

Also shows as: 21.0000 Print Failure, 21.X Print failure, 21.XX, 21 Page Too Complex

✅ Usually fixable yourself

The printer ran into an internal problem and could not complete the job.

What to try

  1. Turn the printer off and on again, then try printing the job again.
  2. If the problem continues, try a different print driver downloaded from HP's support site.

When it needs a technician

HP's article does not call for service; if it continues, contact HP support for further help.

Which models show 21

HP documents this code for models including HP LaserJet Pro M701/M706, HP LaserJet P2050 series, HP LaserJet P3010 series.

Varies by model: On the P2050 series HP shows "21.X Print failure, Press OK" and says pressing OK continues the job, though output might be affected. On the P3010 series "21 PAGE TOO COMPLEX" means the job data is too complex; simplify the job or add memory.

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, Troubleshoot 20.xx (memory failure) and 21.xx (print failure) error messages. Codes are model-specific, so your own model's manual is the final word. Reviewed October 2026.

Still showing 21?

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

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