Engine Pcb - Brother HL 5030 - B/W Laser Printer 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
•
Fan motor
•
Thermistor
•
Polygon motor
•
High-voltage power supply
•
Toner sensor
•
Cover sensor
•
Front registration sensor
•
Rear registration sensor
•
For the circuit diagram of the engine PCB, see
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-5030/5040/5050/5070N SERVICE MANUAL
Solenoid
•
Upper cassette sensor
•
Lower cassette sensor
•
Upper paper exit sensor
•
Lower paper exit sensor
•
Lower cassette exit sensor
•
Paper eject sensor
•
Fixing unit cover sensor
•
Multi-purpose tray paper exit sensor
•
APPENDIX 9. and 10. 'ENGINE PCB CIRCUIT
HL-5030 HL-5040
3-17
HL-5050/5070N
: Built-in : Not built-in