Brother MFC5890CN Service Manual page 120

Error Code
Symptom
(Hex)
B9 Light intensity error of
the LED array
(Exceeding the upper
limit)
BA-BC Not used.
BD Black level data error.
BE-DE Not used.
DF, E0 Modem error.
E1 Not used.
E2 Wired LAN MAC
address not registered.
E3 Wireless LAN MAC
address not registered.
E4, E5 Not used.
E6 Write error in
EEPROM.
E7-E9 Not used.
EA Document removed at
phase B.*
EB Not used.
EC LCD connection
detection failure.
ED-F6 Not used.
F7 Media module detection
failure.
* Phase B: FAX negotiation stage between sending machine and receiving machine
Probable Cause
CIS defective
Main PCB defective
CIS defective
Main PCB defective
SDAA chip defective
Main PCB defective
MAC address not written
into the main PCB correctly
WLAN PCB defective
Main PCB defective
Document front sensor
actuator caught on the
surrounding parts
Document front sensor
defective
Main PCB defective
LCD flat cable not connected
correctly
LCD unit defective
Main PCB defective
Main PCB defective
4-22
Solution
Replace the scanner cover
(scanner unit)
Replace the main PCB.
Replace the scanner cover
(scanner unit).
Replace the main PCB.
Turn the machine off and then
on.
Replace the main PCB.
Replace the main PCB.
Replace the WLAN PCB.
Replace the main PCB.
Correct the surrounding parts
on which the actuator caught.
Replace the document sensor
PCB.
Replace the main PCB.
Correct the connection.
Replace the LCD unit.
Replace the main PCB.
Replace the main PCB.
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