STAPLER COMPRISING A STAPLE CARTRIDGE

There is provided a staple cartridge， on which a refill is configured to be mounted， the refill including a refill main body configured to accommodate therein a plurality of staple sheets in a stacked state and having a discharging port for discharging the staple sheets， and a staple presser configured to be placed on the stacked staple sheets so as to move in a stacking direction of the staple sheets as the staple sheets are discharged through the discharging port and an amount of the staple sheets is reduced. The staple cartridge includes a mount portion， on which the refill is configured be removably mounted， and a displacement member provided on the mount portion and configured to abut against the staple presser to be displaced in accordance with a position of the staple presser in a state where the refill is mounted on the mount portion.