Chapter 22-28c. Reversing/Moving the Original 2The machine rotates the feed motor in normal direction and the delivery reversal motor in reverse to move sheets at the same time. The machine stops the deliveryreversal motor when the originals have moved a specific distance. The machine then drives the lock motor for a specific number of pulses to lock the platen upstreamroller in place.F-2-332.5.2 Sequence of Operation 0002-9821Sequence of Operation (small-size, reversal)F-2-342.5.3 Controlling the Delivery Reversal Motor (M3) 0002-9898The following is a diagram of the circuit used to control the delivery reversal motor (M3). The delivery reversal motor (M3) is a 4-phase stepping motor, and thecircuit has the following functions:- turning off/on the motor- controlling the rotation direction of the motor- controlling the rotation speed of the motorF-2-35The CPU (IC4) on the ADF driver PCB receives data (command) from the host machine on print mode (magnification, operation mode, timing); in response, itgenerates drive pulses to drive the delivery reversal motor (M3). The delivery reversal motor (M3) is a stepping motor, and the direction and speed of rotation arechanged by changing the order and frequency of drive pulses (A, A*, B, B*).2.6 Document Feeding/Delivery2.6.1 Basic Sequence of Operation 0002-9828a. Moving the OriginalsThe machine turns on the locking solenoid before the trailing edge of the original leaves the platen downstream roller to lock the delivery reversing roller in place.No. 2 registration rollerM2 M3Read standing by positionRead roller 1Reversing roller:Motor reversal rotationArchingNormal rotation Reversal rotationPickup/feed Reading ReversalPickup clutch(CL1)Separation rearsensor (PI7)Registration sensor(PI1)Read sensor(PI8)Delivery reversalsensor (PI9)Pickup motor(M1)Feed motor(M2)Delivery reversalmotor (M3)Locking motor(M4)Original placementsensor (PI5)Release solenoid(SL2)ArchingImage leading edgesensorReversal standingStart key ONIC1MotorDriver+24VAA*BB*M3J10B*A*A783654REF1IC9CPUBADF driver PCBREF2REF+5V