Brother International HL 5030 Service Manual - Page 85
Engine Pcb, Appendix 9. And 10. 'engine Pcb Circuit, Diagram
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HL-5030/5040/5050/5070N SERVICE MANUAL 1.4 Engine PCB The gate array which transforms the serial signal from the main PCB into the parallel signal is mounted on the engine PCB. The engine PCB controls the following parts by using the transferred signal data; • Main motor • Solenoid • Fan motor • Upper cassette sensor • Thermistor • Lower cassette sensor • Polygon motor • Upper paper exit sensor • High-voltage power supply • Lower paper exit sensor • Toner sensor • Lower cassette exit sensor • Cover sensor • Paper eject sensor • Front registration sensor • Fixing unit cover sensor • Rear registration sensor • Multi-purpose tray paper exit sensor For the circuit diagram of the engine PCB, see APPENDIX 9. and 10. 'ENGINE PCB CIRCUIT DIAGRAM' in this manual. Sensor configuration varies according to machine types. Upper cassette sensor Upper paper exit sensor Lower cassette sensor Lower paper exit sensor Lower cassette exit sensor Multi-purpose tray paper exit sensor HL-5030 HL-5040 HL-5050/5070N : Built-in : Not built-in 3-17