The following information provides details about the staple cartridges for the printer, and it includes instructions to replace them.
To purchase a package of two staple cartridges (part number Q7432A), go to the HP Parts Store at www.hp.com/buy/parts. Each cartridge holds 1,500 staples.
In addition to the instructions provided in this document, you can view the following video of how to remove and replace the staple cartridge.