To provide a sheet processor which can process front and rear surfaces of a sheet by one processing part.
When grip-changing a sheet between a first flank 33 and a second flank 32, a first gripper device cam and a second gripper device cam 32b2 are positioned in a first grip change position and a second grip change position, when not grip-changing the sheet between the first flank 33 and the second flank 32, a first gripper device 33a maintains a closed state in a state of gripping the sheet in an oppositely-contacting position between the first flank 33 and the second flank 32, and the first gripper device cam 33p2 and the second gripper device cam 32b2 are positioned in a first retreat position and a second retreat position so that a second gripper device 32a may maintain an opened state.
EBINA TOSHIHIKO
ISHIZUKA YUJI
Shigeki Yamakawa