HP LaserJet Enterprise MFP M725 series - Manual (Page 77)

6. Remove the shipping tape from the new toner
cartridge. Recycle the tape with the used toner
cartridge.
7. Align the toner cartridge with the tracks inside
the product, and insert the toner cartridge until
it is firmly seated.
8. Close the cartridge door. After a short time,
the control panel should display the Ready
message.
ENWW Toner cartridge 63