Brother International HL-1660E Service Manual - Page 39
Engine Controller Circuit - fuser
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1.3 Engine Controller Circuit Scanner Unit Engine Controller Circuit High-Voltage Power Supply Assy Paper Feeder PCB Detectors Main Motor Low-Voltage Power Supply Assy Primary charging roller Transfer roller Developing cylinder Toner sensor Pick-up Solenoid MP Tray Pick-up Solenoid Pick-up Motor Fixing Unit Figure 3.5 Engine Controller Block Diagram Components in the Circuit (refer to the next page) A. Engine Control CPU B. Low-Voltage Power Supply Connector C. Fuser Unit Control C-1. Heater Drive Circuit C-2. Heater Temperature Input Signal C-3. Paper Eject Input Signal D. Paper Feeder PCB Control Signals and Connector E. Option Interface Circuit and Connector F. High-Voltage Power Supply Control Circuit and Connector G. Scanner Unit Control G-1. Scanner Motor Control Circuit G-2. Laser Diode Drive PCB Control Circuit H. Fan Motor Drive Circuit I. Main Motor Control Circuit J. Cover Open Detect Circuit K. Safety Door Switch Circuit III - 7