HP LaserJet 9000 Printer series - Manual (Page 32)

32 2 Finisher tasks ENWW
5 On the empty staple cartridge,
squeeze the tabs together and pull
the empty cartridge out.
6 Insert the new staple cartridge so
that it locks into place.
7 Slide the stapler unit into the device.
8 Close the stapler-unit door.
6
7
5
8