HP Color LaserJet 4500 Printer series - Manual (Page 116)

116 Consumables and Cleaning
EN
Environmental Collection Program
Hewlett-Packard encourages responsible disposal of HP LaserJet
printer consumable items through its Environmental Collection
Program. For details on this program, see the recycling instruction
guide enclosed with each consumable item. This program may not be
available in all countries/regions.
The following consumable items can be disposed of through the
Environmental Collection Program:
● Toner Cartridge
● Imaging Drum Cartridge
● Transfer Belt
● Fuser