HL-5130/5140/5150D/5170DN SERVICE MANUAL
3-17
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
•
Upper cassette sensor
•
Fan motor
•
Lower cassette sensor
•
Thermistor
•
Upper paper exit sensor
•
Polygon motor
•
Lower paper exit sensor
•
High-voltage power supply
•
Lower cassette exit sensor
•
Toner sensor
•
Paper eject sensor
•
Cover sensor
•
Fixing unit cover sensor
•
Front registration sensor
•
Multi-purpose tray paper exit sensor
•
Rear registration sensor
•
DX sensor
•
Solenoid
•
DX rear cover 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.
HL-5130
HL-5140
HL-5150D
/5170DN
Upper cassette sensor
Upper paper exit sensor
Lower cassette sensor
Lower paper exit sensor
Lower cassette exit sensor
Multi-purpose tray paper exit sensor
: Built-in
: Not built-in
