Service manual

176
SEP 2006
Ver. 1.1
DP-8020E/8020P/8016P
CN775
CN776
CST2 PCB
Pin No.
Signal Name Destination Signal Waveform Function
CN775-1 PCHK2 No Paper Sensor
-1
2nd Paper Tray Paper
Detection Signal
CN775-2 GND No Paper Sensor
-2
Ground
CN775-3 LDPHK2 No Paper Sensor
-3
Photo Sensor DC Drive
Voltage
CN775-4 UPLMT2 Upper Limit
Sensor
-1
2nd Paper Tray Paper Level
Signal
CN775-5 GND Upper Limit
Sensor
-2
Ground
CN775-6 LDUPL2 Upper Limit
Sensor
-3
Photo Sensor DC Drive
Voltage
CST2 PCB
Pin No.
Signal Name Destination Signal Waveform Function
CN776-1 FDPCHK2 Registration
Sensor
-1
2nd Paper Tray Paper
Registration Detection
Signal
CN776-2 GND Registration
Sensor
-2
Ground
CN776-3 LDFPCHK2 Registration
Sensor
-3
Photo Sensor DC Drive
Voltage
+5V
0V
0V
+1.2V
+5V
0V
0V
+1.2V
+5V
0V
0V
+1.2V