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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
Rubber key attachment failure (Non
touch panel models only)
Reattach the rubber key.
2
Connection failure of the panel PCB flat
cable (Non touch panel models only)
Reconnect the panel PCB flat cable.
3
Connection failure of the low-voltage
power supply harness
Reconnect the low-voltage power supply
harness.
4
AC cord failure
Replace the AC cord.
5
LCD relay PCB failure
Replace the LCD relay PCB ASSY.
6
Panel PCB failure (Non touch panel
models only)
Replace the panel PCB ASSY.
7
LCD failure (Non touch panel
models only)
Replace the LCD.
8
Panel PCB failure (Touch panel
models only)
Replace the LCD panel ASSY.
9
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
10
Main PCB failure
Replace the main PCB ASSY.