Brother MFC-7290 - Page 91

2-54
Confidential
 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.
 Error code DD
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 Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Print Unable DD
See Troubleshooting and routine maintenance chapter in User's Guide.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step Cause Remedy
1
Connection failure of the fuser
unit harnesses
Reconnect the fuser unit harnesses.
2
Connection failure of the eject
sensor PCB harness
Reconnect the eject sensor PCB harness.
3 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
4
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
ASSY.
5 Main PCB failure Replace the main PCB ASSY.
6 Fuser unit failure Replace the fuser unit.