Epson DFX-8500 Service Manual page 179

FPC A
FPC B
FPC C
: Printhead coil GND side
: Printhead coil P/S side
: Printhead thermistor
PWD : Paper width sensor
+5V : +5 VDC
ENCA: Encoder A
GND : Ground
HT : Printhead thermistor
MA : Fan motor phase A
MB : Fan motor phase B
MC : Fan motor common
MT : Fan motor thermistor
P/S : Power supply (+37 VDC)
ENCB: Encoder B
Figure 5-4. Printhead Cable Signals
TROUBLESHOOTING
Load Pattern
5-5