Brother FAX-2840 Service Manual page 91

Error code D2 to DC
These errors do not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Error code DD
Print Unable DD
See Troubleshooting and routine maintenance chapter in User's Guide.
Fuser unit error (except error codes 6A to 6E, 76, 78, DE and E2)
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
Connection failure of the fuser
1
unit harnesses
Connection failure of the eject
2
sensor PCB harness
3 Eject sensor PCB failure
Low voltage power supply PCB
4
failure
5 Main PCB failure
6 Fuser unit failure
Cause
Replace the main PCB ASSY.
Cause
Reconnect the fuser unit harnesses.
Reconnect the eject sensor PCB harness.
Replace the eject sensor PCB ASSY.
Replace the low voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Replace the fuser unit.
2-54
Remedy
Remedy
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