HP LaserJet Pro MFP M521 series - Visually inspect the toner cartridge

background image

Visually inspect the toner cartridge

1.

Remove the toner cartridge from the product, and verify that the sealing tape has been removed.

2.

Check the memory chip for damage.

3.

Examine the surface of the green imaging drum on the toner cartridge.

CAUTION:

Do not touch the imaging drum. Fingerprints on the imaging drum can cause print-

quality problems.

4.

If you see any scratches, fingerprints, or other damage on the imaging drum, replace the toner

cartridge.

5.

If the imaging drum does not appear to be damaged, rock the toner cartridge gently several times

and reinstall it. Print a few pages to see if the problem has resolved.