Lexmark X950 Series User Manual page 279

4
Use the metal tab to lift the staple guard, and then remove any jammed or loose staples.
5
Close the staple guard.
6
Press down on the staple guard until it clicks into place.
7
Push the staple cartridge holder firmly back into the stapler unit until the staple cartridge holder clicks into place.
8
Close the stapler door.
Clearing jams
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