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THEORY OF OPERATION
Fig. 2-13 Paper Feed Motor Driving Signals
The utilization of voltage applied to the paper feed motor is described as follows.
Mode Voltage Application
Operation VH (+25.5V) Motor Drive
Standby: VL (+5V) Holding Bias
Voltage to the paper feed motor is changed by setting CPU port P31 to LOW or HIGH and by turning transistor TR6 and
transistor array TA1 ON or OFF.
When TA1 is turned on, +25.5V is applied to the paper feed motor.
When TA1 is turned off, +5V is supplied to the motor via diode D2.
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