Toshiba E-studio 200L Operator's Manual page 277

3
Holding the both sides of the green area
of the staple cartridge, take out the
cartridge.
4
Take out the empty staple case.
- Push the buttons (marked PUSH) from both sides to release the
lock.
- Take out the empty staple case from the staple cartridge.
5
Push the new staple case into the staple
cartridge until it clicks.
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