Replacing and recycling supplies
To install a new HP print cartridge, follow the instructions that are included on the box that contains the new supply, or see the Getting Started Guide.
To recycle supplies, place the used supply in the box in which the new supply arrived. Use the enclosed return label to send the used supply to HP for recycling. For complete information, see the recycling guide that is included with each new HP supply item. See HP LaserJet printing supplies for more information about HP’s recycling program.