FINISHER3-10Staple cartridge replacementWhen the staple cartridge becomes empty, the message "Add staples." will appear in the message display of theoperation panel.Follow the procedure below to replace the staple cartridge.1 Open the front cover.2 Turn the staple unit to face up.3 Pull the release lever for the staple boxand remove the box.4 Remove the empty staple cartridge fromthe staple box.5 Insert a new staple cartridge into thestaple box aligning the arrow of the staplecartridge with that of the staple box.When reinstalling thestaple box, push it inuntil it clicks into plac e.6 Remove the tape from the staple cartridgeby pulling it straight.7 Reinstall the staple box.Push the staple box inuntil it clicks into place.8 While pushing the staple unit release leverto the left, rotate the staple unit to facedown.9 Close the front cover.NOTES Do not remove the tape from the cartridge beforeinserting the staple cartridge into the box. When reinstalling the staple box, push it in until itclicks into place.NOTEMake a test print or copy in the staple sort mode toensure that stapling is performed properly.