HP Color LaserJet Enterprise Flow M776z All-In-One Laser Printer - Manual (Page 89)

5. Support the toner cartridge underneath with one
hand while holding the cartridge handle with the
other. Align the toner cartridge with its slot on the
shelf, and then insert the toner cartridge into the
printer.
NOTE: Avoid touching the developer roller.
Fingerprints on the developer roller can cause print
defects.
6. Close the front door.
Save all packaging for recycling the used toner
cartridge. To recycle the used cartridge, follow the
instructions included with the new cartridge.
ENWW Replace the toner cartridges 75