HP LaserJet M5025 Multifunction Printer series - Manual (Page 103)

Load staples
Each staple cassette holds 5,000 unformed staples.
1. Open the stapler door.
2. Lift up the green handle on the staple cartridge to dislodge it and then pull the cartridge out of the
device.
3. Insert the staple cartridge into the opening inside the stapler door and then press the green handle
down.
ENWW Use the stapler 91