Brother MFC-9840CDW - Page 58

Confidential
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Error code D0-DF
Press Stop Key
Modem error
User Check
- Turn the power switch off and on and check if the machine is recovered from the error.
Step Cause
Remedy
1 Main PCB failure Replace the main PCB ASSY.
Error code E0
Print Unable E0
Program error. (An error occurred in the ROM checksum.)
Step Cause
Remedy
1 Firmware update failure Upload the latest firmware.
2 Main PCB failure Replace the main PCB ASSY.
Error code E1
Print Unable E1
Program error.
Step Cause
Remedy
1 Firmware update failure Upload the latest firmware.
2 Main PCB failure Replace the main PCB ASSY.
Error code E6
Print Unable E6
Turn the power off and then back on again.
NVRAM error on main PCB
Step Cause
Remedy
1 Main PCB failure Replace the main PCB ASSY.
Error code EB
Print Unable EB
Turn the power off and then back on again.
NVRAM reading error on laser unit
Step Cause
Remedy
1 Harness connection failure
between laser unit and main
PCB
Check the harness connection between the laser
unit and main PCB and reconnect it.
2 Laser unit failure Replace the laser unit.
3 Main PCB failure Replace the main PCB ASSY.