Chapter 22-462.6.6 Controlling the Reversal Motor (M1) 0011-7324The following is a diagram of the circuit used to control the reversal motor (M1), which is a 4-phase stepping motor. The circuit has the following functions:- turning off/on the motor- controlling the direction of motor rotation- controlling the speed of motor rotationF-2-114[1] ADF controller PCB[2] reversal motor drive PCBM1: reversal motorPI5: reversal motor clock sensorThe CPU (Q18) on the ADF controller PCB sends various motor control signals to the reversal motor driver PCB, which in turn controls the motor as dictated bythese signals.T-2-132.6.7 Manual Feeder Pickup/Delivery Operation 0011-7325The machine uses 'manual feeder pickup/delivery' only for fixed reading mode.1) When an original is placed in the manual feeder, the manual feeder placement sensor (PI12) detects it.F-2-1152) When the Start key is pressed, the machine uses the delivery roller to move the original until the lead edge of the original butts against the manual feeder regis-tration roller (thus removing the skew).F-2-1163) The machine moves the original to move the delivery roller and the transport belt. The original stops when its lead edge reaches the reversal sensor (S1).Signal name DescriptionINA phase control (direction and speed of rotation)INB phase control (direction and speed of rotation)IN_A phase control (direction and speed of rotation)IN_B phase control (direction and speed of rotation)T-Vref motor rotation torque settingIC18CPUQ601+24U+24RAA*BB*M1+5RIN_BIN_AINBINAT-VrefJ602J71J6PI 5J14TRCLK1312111098765432112345678910111213B9314625[1]Manual feeder placement sensor(PI12)Manual feeder registration sensor(S9)
