HP LaserJet 9000 Printer series - Manual (Page 27)

ENWW Using the stapler 27
To staple documents
Windows
1 Click File, click Print, and then click Properties.
2 Follow the instructions for your driver type:
• If you are using a PCL driver, click the Finishing tab and
select the Staple box. Click Stapling.
• Select the desired number of staples.