HP LaserJet Enterprise 500 Color MFP M575 - Manual (Page 81)

4. Grasp both sides of the toner cartridge and
distribute the toner by gently rocking the toner
cartridge.
5. Remove the plastic shield from the toner
cartridge.
CAUTION: Avoid prolonged exposure to
light.
CAUTION: Do not touch the green roller.
Doing so can damage the cartridge.
ENWW Toner cartridges 65