Epson EPL-N1200 Service Manual - Page 67

Engine Control, Engine Controller Connecting Diagram, PWB-B

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Operating Principles EPL-N1200 Service Manual 2.1.2 Engine Control This section describes engine control, the power supply board, and the high-voltage supply board. The engine is controlled by the engine controller board (PWB-A board). Figure 2-12 shows an engine controller connecting diagram. PWB-D LD SOS Mirror Scanner Motor Control Panel Main Controller Board C205 MAIN Lower Paper Cassette #1 (option) PWB-B Paper Empty Sensor Cassette Detecting SW Paper Take Up Solenoid SL2 Lower Paper Cassette #2 (option) PWB-B Paper Empty Sensor Cassette Detecting SW Paper Take Up Solenoid SL2 Engine Controller Board PWB-A Fan Motor High Voltage Supply B HV-1 Doctor Blade Bias Image Transfer Roller Development Charge Brush Paper Take Up Sensor PC2 Thermistor Paper Take Up Solenoid SL1 Paper Exit Sensor PC3 Paper Empty Sensor PC1 Power Supply Board PU1 Power SW AC Power Input Interlock SW Heater Lamp Main Motor PWB-G Toner Empty Sensor PWB-S Transfer Current Change SW. Figure 2-12. Engine Controller Connecting Diagram 2-8 Rev. A

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2.1.2 Engine Control
This section describes engine control, the power supply board, and the high-voltage supply board.
The engine is controlled by the engine controller board (PWB-A board).
Figure 2-12 shows an
engine controller connecting diagram.
Image Transfer Roller
Paper Take Up
Sensor PC2
High Voltage
Supply B
HV-1
Thermistor
Paper Take Up Solenoid SL1
Paper
Exit Sensor PC3
Paper Empty Sensor PC1
Power SW
AC Power Input
Interlock SW
Heater Lamp
Main Motor
Power
Supply
Board
PU1
PWB-D
LD
SOS
Mirror
Scanner
Motor
Control
Panel
Main
Controller
Board
C205
MAIN
Lower Paper
Cassette #1
(option)
Paper Empty
Sensor
Cassette
Detecting
SW
Paper Take Up
Solenoid SL2
Engine
Controller
Board
PWB-A
Doctor Blade Bias
Charge Brush
Development
Fan Motor
PWB-G
Toner Empty
Sensor
Lower Paper
Cassette #2
(option)
Paper Empty
Sensor
Cassette
Detecting
SW
Paper Take Up
Solenoid SL2
PWB-S
Transfer Current
Change SW.
PWB-B
PWB-B
Figure 2-12.
Engine Controller Connecting Diagram
Operating Principles
EPL-N1200 Service Manual
2-8
Rev. A