Brother MFC-7220 - Page 187

Confidential
9-6
[ 2 ] Error codes shown in the "MACHINE ERROR X
X" message
Error Code
(Hex)
Symptom Probable Cause Solution
The back cover is opened. Close the back cover.
Paper eject sensor actuator
caught on the surrounding
parts.
Reassemble the paper eject
sensor actuator.
Paper eject sensor defective
56
Eject sensor error. (The
paper eject sensor actuator
is being push down.)
Main PCB defective
Replace the main PCB.
57
Not used.
58
The error 6X, 76, 77, 78 or
79 occurred immediately
before this error.
Any error occurs in the fixing
unit.
Leave the machine for 10 minutes
while keeping the power on. It is
all right if the machine recovers
from the error.
PS PCB unit defective Replace the PS PCB unit.
Fixing unit defective Replace the fixing unit.
59
Fixing unit error
The machine is left for 10
minutes after the error 58
occurs, but the fixing unit
error is not cleared.
Main PCB defective Replace the main PCB.
High-voltage PS PCB ASSY
harness not connected
properly.
Reconnect the high-voltage PS
PCB ASSY harness.
High-voltage PS PCB ASSY
defective
Replace the high-voltage PS PCB
ASSY.
5A
Incorrect develop bias
value output of high-
voltage PS PCB (The bias
value is too low or too
high.)
Main PCB defective Replace the main PCB.
New toner actuator caught on
the surrounding parts
Reassemble the new toner
actuator.
New toner actuator broken Replace the new toner actuator.
New toner detection switch
defective
Replace the new toner detection
switch.
5B
New toner detection lever
error (The new toner
detection lever is being
push down.)
Main PCB defective Replace the main PCB.
5C-69
Not used.
Thermistor / halogen lamp
defective
Replace the fixing unit.
PS PCB unit defective Replace the PS PCB unit.
6A
Heater warming-up
timeout error. (Heater does
not reach 60 ˚С within 11
second.)
Main PCB defective Replace the main PCB.
Thermistor / halogen lamp
defective
Replace the fixing unit.
PS PCB unit defective Replace the PS PCB unit.
6B
Heater warming-up
timeout error. (Heater does
not reach 100 ˚С within 15
second.)
Main PCB defective Replace the main PCB.
Thermistor defective Replace the fixing unit.
PS PCB unit defective Replace the PS PCB unit.
6C
Heater temperature
exceeds the maximum high
temperature. (270˚С or
more is detected for 1sec.)
Main PCB defective Replace the main PCB.
Halogen lamp defective Replace the fixing unit.
PS PCB unit defective Replace the PS PCB unit.
6D
Heater temperature does
not go up enough. (The
setting is 100 ºC, but the
temperature reaches only
60ºC or less.)
Main PCB defective Replace the main PCB.
Halogen lamp defective Replace the fixing unit.
PS PCB unit defective Replace the PS PCB unit.
6E
Heater temperature goes up
slowly. (It rises by 2ºC or
less for 5 sec.)
Main PCB defective Replace the main PCB.