HP LaserJet Pro CP1525nw Color Printer - Manual (Page 116)

4. Remove the new print cartridge from the
packaging.
5. Gently rock the print cartridge from front to back
to distribute the toner evenly inside the print
cartridge.
6. Remove the orange, plastic shield from the
bottom of the new print cartridge.
102 Chapter 9 Manage and maintain ENWW