Samsung MultiXpress M537x series Basic Manual page 280

Replacing the staple cartridge
3 Lift the empty staple cartridge form the stapler unit.
Unpack the new staple cartridge.
4
Place the staple cartridge back into the stapler unit.
5
6 Slide the stapler unit in until it locks in place.
Close the 2Bin Finisher front cover.
7
10. Consumables and accessories
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