Oki Data CONFIDENTIAL44158801TH Rev.2 43 /2.3.2.5 Sensor InputThe sensor input includes home position sensor.Home position sensorThe home position of the carrier motor is detected by photo sensor. The photo transis-tor transmission to the photo sensor receiver circuit is shown below.Figure 2.3 Home position sensorThe home position is detected when the carrier passes between the LED and the photo tran-sistor.2.3.2.6 Sub Power Supply CircuitThe sub power supply circuit is provided for the internal analog circuit. Input is 24V. The circuitconfiguration is shown below:+5V +5VSwitching+24V+5V= logic+3.3V=logic+1.5V=CPU’s Core+1.2V=DSP’s CoreLinear+24V +5Va: A/D Converter+12V: CCD
