CHAPTER 3 THEORY OF OPERATION
3-14
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
•
Clutch
•
Plate motor
•
Upper tray sensor and paper size sensor
•
Thermistor
•
Lower tray sensor and paper size sensor
•
Polygon motor
•
Lower paper PE sensor
•
High-voltage power supply
•
Lower paper exit sensor
•
Toner sensor
•
Paper eject sensor (Fixing unit cover
sensor)
•
Heater control
•
Release sensor
•
Lower tray plate sensor
For the circuit diagram of the engine PCB, see
APPENDIX 11. and 12. ‘ENGINE PCB
CIRCUIT DIAGRAM’
in this manual.
Sensor configuration varies according to machine types.
HL-6050
HL-6050D/DN
DX-SENSOR
DX-SOLENOID
: Built-in
: Not built-in
