Brother MFC-7220 - Page 189

Confidential
9-8
Error Code
(Hex)
Symptom Probable Cause Solution
Main PCB defective Replace the main PCB.
7A
Main motor does not
synchronize with the
reference clock.
Main motor defective Replace the main motor.
7B
ASIC error on the main
PCB.
Main PCB defective Replace the main PCB.
7C
Not used.
Dust is attached on the corona
wire.
Clean the corona wire.
The electrodes are dirty. Clean the electrodes of the main
body and drum unit. (Refer to
P9-48 “Location of Grounding
Contacts” in this chapter.)
High-voltage PS PCB ASSY
defective
Replace the high-voltage PS PCB
ASSY.
7D
Corona wire discharge
Main PCB defective Replace the main PCB.
7E-7F
Not used.
Paper smaller than the
specified size loaded in the
paper tray
Load the correct size of paper.
Regist rear sensor actuator
caught on the surrounding
parts.
Reassemble the regist rear sensor
actuator.
Regist rear sensor defective Replace the high-voltage PS PCB
ASSY.
80
At the start of FAX
message printing, the
controller detects that
paper is smaller than letter
size in width.
Main PCB defective Replace the main PCB.
Paper is jammed. Remove the jammed paper.
Paper eject sensor actuator
caught on the surrounding
parts.
Reassemble the paper eject
sensor actuator.
Paper eject sensor defective
81
Recording paper jam.
(The paper eject sensor
actuator is being push
down when turning the
machine ON.)
Main PCB defective
Replace the main PCB.
Paper is jammed. Remove the jammed paper.
Regist front sensor actuator
caught on the surrounding
parts.
Reassemble the regist front
sensor actuator.
Regist front sensor defective Replace the regist front sensor
PCB ASSY.
82
Recording paper jam while
feeding paper
(The regist front sensor
actuator is being push
down.)
Main PCB defective Replace the main PCB.
Paper is jammed. Remove the jammed paper.
Regist front sensor actuator
caught on the surrounding
parts.
Reassemble the regist front
sensor actuator.
P/R solenoid defective Replace the P/R solenoid.
83
Recording paper jam.
(The regist front sensor
actuator is push down too
early when feeding paper.)
Main PCB defective Replace the main PCB.
Paper is jammed. Remove the jammed paper.
Foreign materials in the paper
path.
Remove foreign materials.
Paper ejection roller defective Replace the paper ejection roller.
Paper eject sensor actuator
caught on the surrounding
parts.
Reassemble the paper eject
sensor actuator.
Paper eject sensor defective
84
Recording paper jam.
(The paper eject sensor
actuator is being push
down even after ejecting
paper.)
Main PCB defective
Replace the main PCB.