Brother MFC-9840CDW - Receiving a fax

Confidential
1-40
Error code ED
Print Unable ED
Turn the power off and then back on again.
Failure of wireless LAN connection (Connection to the wireless LAN module is failed when the
machine is turned ON.)
Error code EE
Print Unable EE
Turn the power off and then back on again.
Wireless LAN is unable to communicate. (Any problem that the wireless LAN cannot be
connected is occurred after wireless LAN connection is succeeded.)
User Check
- Turn the power off. Turn it on again after a while.
Step Cause
Remedy
1 Harness connection failure of
wireless LAN PCB ASSY
Check the harness connection of the wireless LAN
PCB ASSY and reconnect it.
2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
Error code EF
Print Unable EF
Turn the power off and then back on again.
Incorrect print coverage value
User Check
- Turn the power off. Turn it on again after a while.
Step Cause
Remedy
1 Main PCB failure Replace the main PCB ASSY.
Error code F8
Machine Error F8
Battery connection failure
Step Cause
Remedy
1 Battery harness connection
failure
Reconnect the battery harness.
2 Main PCB failure Replace the main PCB ASSY.