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4.5 Troubleshooting for Network Problems
4.5.1 Cannot print via network connection
4.5.2 Cannot connect to access point
4.6 Troubleshooting for Control Panel Problems
4.6.1 Nothing is displayed on the LCD
<User Check>
• Check the relevant section in the Network Setting Guide.
• Check the network connection.
• Reset the network. (Refer to the online User's Guide.)
• Check the LAN cable.
Step
Cause
Remedy
1
Wireless LAN PCB failure
Replace the wireless LAN PCB.
2
Deformed LAN terminal pin
Main PCB failure
Replace the main PCB ASSY.
<User Check>
• Check the wireless LAN settings.
• Check the access point settings.
• Change the machine installation location.
• Set the access point manually.
Step
Cause
Remedy
1
Wireless LAN PCB failure
Replace the wireless LAN PCB.
2
Main PCB failure
Replace the main PCB ASSY.
<User Check>
• Turn the power switch OFF and then ON again.
Step
Cause
Remedy
1
Connection failure of the panel flat
cable
Reconnect the panel flat cable.
2
Connection failure of the low-voltage
power supply harness
Reconnect the low-voltage power supply
harness.
3
AC cord failure
Replace the AC cord.
4
LCD relay PCB failure
(For 3.7 inch models only)
Replace the LCD relay PCB ASSY.
(For 3.7 inch models only)
5
Panel flat cable failure
Replace the panel flat cable.
6
LCD failure
Replace the LCD.
7
Panel PCB failure
Replace the LCD panel ASSY.
8
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
9
Main PCB failure
Replace the main PCB ASSY.