Circular stapling system comprising load control

An end effector of a surgical stapler, wherein said end effector comprises:

• a cartridge body comprising a deck and a longitudinal axis;
• a plurality of staple cavities defined in said cartridge body;
• staples removably stored in said staple cavities;
• a cutting member;
• and
• a firing member rotatable about said longitudinal axis to sequentially eject said staples from said staple cavities and then sequentially deploy said cutting member above said deck.

An end effector for use with a surgical stapler configured to apply annular rows of staples, said end effector comprising:

• a cartridge body;
• a plurality of staple cavities defined in said cartridge body, comprising:
• a first annular row of staple cavities;
• a second annular row of staple cavities;
• a first group of staples removably stored in said first annular row of staple cavities;
• a second group of staples removably stored in said second annular row of staple cavities;
• a plurality of staple drivers, wherein each said staple driver is configured to eject a said staple from a said staple cavity;
• a cutting member;
• a drive slot defined along an arcuate path, wherein said arcuate path includes:
• a first portion which extends under said first annular row of staple cavities;
• a second portion following said first portion which extends under said second annular row of staple cavities;
• and
• a third portion following said second portion which extends under said cutting member;
• and
• a ramp slideable within said drive slot, wherein said ramp is configured to engage said staple drivers to eject said staples from said staple cavities and deploy said cutting member.