SATO CW408 Operator's Manual page 89

Preliminary
5.2 TROUBLESHOOTING TABLE (Cont'd)
TROUBLESHOOTING TABLE
PRINTER CREATES A BLANK MEDIA
Data input error.
Incorrect media sensor selection.
Print head is disconnected.
Defective print head.
Defective main circuit board.
NO DISPLAY AT ALL
Power supply issues.
CW408 Operator Manual
Make sure that the data stream is correct.
Set the sensor correctly.
Power off the printer and make sure that the print head is properly
connected.
Replace print head as required.
Have SATO authorized service personnel to replace main board.
Make sure that the cable is properly connected. Check/ replace
power supply.
Section 5: Troubleshooting
Page 5-9