Brother MFC-7220 - Page 192

Confidential
9-11
Error Code
(Hex)
Symptom Probable Cause Solution
B8
A/D converter reference
voltage error in document
scanning (at Low level)
Main PCB defective Replace the main PCB.
CIS defective Replace the CIS.
B9
Light emission intensity
error of the LED array in
document scanning
(Exceeding the upper limit)
Main PCB defective Replace the main PCB.
CIS defective Replace the CIS.
BA
Gray level data error in
document scanning
Main PCB defective Replace the main PCB.
Document pressure bar dirty Clean the document pressure bar.
CIS defective Replace the CIS.
BB
White level data error in
document scanning
Main PCB defective Replace the main PCB.
CIS defective Replace the CIS.
BC
Half tone level data error
in document scanning
Main PCB defective Replace the main PCB.
CIS defective Replace the CIS.
BD
Black level data error in
document scanning
Main PCB defective Replace the main PCB.
BE-CF
Not used.
D0-DF
Modem error Main PCB defective Replace the main PCB.
E0-E5
Not used.
E6
Write error in EEPROM. Main PCB defective Replace the main PCB.
E7
Not used.
CIS defective Replace the CIS.
E8
Data scanning error during
transmission.
Main PCB defective Replace the main PCB.
E9
Not used.
Actuator F caught on the
surrounding parts
Reassemble the actuator F.
Document front sensor PCB
defective
Replace the panel PCB ASSY.
EA
Document removed at
phase B.
Main PCB defective Replace the main PCB.
EB- F0
Not used.
F1
Dial numbers are not
stored.
The one-touch dial key or
speed dial numbers keys
which have not been stored are
pressed.
Re-store the dial numbers.
F2
Not used.
F3, F5
Internal software error. Main PCB defective Replace the main PCB.
F4
Not used.
F6
PC interface error. Main PCB defective Replace the main PCB.
F7-FF
Not used.
The solution when Error Code 76,77,78 shown in the machine:
The heater may be overheating when one of these errors occurs.
Therefore, the heater is programmed
to turn off its power for 10 minutes after the machine is turned on for the safety concern when the error
occurs.
To help the heater work properly, it’s necessary to follow the operating procedures as below after
taking measures against the cause of the error.
1. Turn the machine off. Wait until the heater temperature lowers enough.
2. Turn the machine on.
3. The machine enters the maintenance mode, then returns to the standby state. Or leave the
machine for 10 minutes while keeping the power on.