In this robot system, a control portion is configured to control a robot to grasp an object to be grasped by a grasping portion, and control a first imaging portion to examine the object to be grasped while driving a robot arm to change a posture of the object to be grasped multiple times. The TAB circuit eliminates bent or broken electrical circuit traces before being bonded to the heater chip by creating a chip window that partially overlaps the edges of the heater chip, and by bringing the electrical circuit traces to the chip window and terminating these circuit traces at a PI edge, which defines the inner perimeter of the chip window. The ALU selectively performs compression and decompression on the digital signal. The base is in rotatable connection with the reamer.