Chapter 22-12.1 Basic Operation2.1.1 Basic Operation 0003-9132The finisher is designed to deliver copies arriving from its host machine, and its modes of delivery include simplestacking, job offset, and staple.All operations involved in these modes are controlled by the finisher controller PCB, according to the appropriatecommands from the host machine.F-2-1Memo: The term job offset refers to shifting each sorting job, separating a single stack into several stacks.2.1.2 Overview of the Electrical Circuitry 0003-9133The finisher’s sequence of operation is controlled by the finisher controller PCB. The finisher controller PCB is a16-bit microprocessor (CPU), and is used for communication with the host machine (serial) in addition to controllingthe finisher’s sequence of operations.The finisher controller PCB responds to the various commands coming from the host machine through a serialcommunications line to drive solenoids, motors, and other loads. In addition, it communicates the finisher’s variousstates (information on sensors and switches) to the host machine through a serial communications circuit.The ICs used on the finisher controller PCB are designed for the following:• IC101 (CPU)Controls sequence of operations.Contains sequence programs.Swing guide drive systemAlignment drive systemStapler drive systemDelivery drive systemFeeder drive systemShutter drive systemTray drive systemControl systemTray drive system