Chapter 66-2[9] Toner Sensor (MF5650 only)Used to detect the presence/absence of toner in the toner cartridge.[10] CCD Home Position SensorUsed to detect the home position of the CCD unit.6.1.2 PCBs6.1.2.1 Arrangement of PCBs 0006-8934F-6-2[1] SCNT BoardUsed to control the whole of the system.[2] NCU Board (MF5650 only)Used to control the communication.[3] Modular Board (MF5650 only)Used to interface to the telephone line.[4] DCNT BoardUsed to control the operation of the printer unit.[5] Power Supply BoardUsed to control the supply of power to various components.[6] High-Voltage Power Supply BoardUsed to supply high-voltage power to the printer unit.[4][3][2][5][1][6]
