HP CM3530 - Manual (Page 196)

6. Remove the orange protective cover from the print cartridge.
CAUTION: Avoid prolonged exposure to light.
CAUTION: Do not touch the green roller. Doing so can damage the cartridge.
7. Align the print cartridge with its slot and insert the print cartridge until it clicks into place.
8. Close the front door.
182 Chapter 13 Manage and maintain the product ENWW