Error Code 2A; Error Code 2B - Brother DCP-9040CN Service Manual

Error code 2A

Print Unable 2A
Turn the power off and then back on again.
Belt cleaner release sensor failure
Step
1 Rotation defective of release
shaft A of waste toner box.
2 Harness connection failure
between belt cleaner release
sensor PCB and belt cleaner
release solenoid.
3 Belt cleaner release sensor
actuator performance
defective
4 Belt cleaner release sensor
PCB failure
5 Belt cleaner release solenoid
failure
6 Engine PCB failure

Error code 2B

Print Unable 2B
Turn the power off and then back on again.
Air intake fan (AIR) failure, or short-circuit of fuser unit fan (FU), LVPS fan (PS), or drum unit
fan (OPC)
Step
1 Air intake fan (AIR) harness
connection failure
2 Short-circuit of air intake fan
(AIR), fuser unit fan (FU),
LVPS fan (PS), or drum unit
fan (OPC)
3 Air intake fan (AIR) failure
4 Engine PCB failure
Cause
Replace the waste toner box.
Check the harness connection between the belt
cleaner release sensor PCB and belt cleaner
release solenoid and reconnect them.
Replace the belt cleaner release ASSY.
Check the sensor performance following the
procedure described in
any problem occurs, replace the belt cleaner
release sensor PCB ASSY.
Replace the belt cleaner release ASSY.
Replace the engine PCB ASSY.
Cause
Check the harness connection of the air intake fan
(AIR) and reconnect it.
Check if the harness terminal of any of these fans
is short-circuited using the tester.
If any of the fans is short-circuited, replace the
short-circuited fan and the engine PCB ASSY at
the same time.
The harness terminals that must be checked are:
- Air intake fan (AIR): Between 1 and 3 pins
- Fuser unit fan (FU): Between 1 and 2 pins
- LVPS fan (PS): Between 1 and 2 pins
- Drum unit fan (OPC): Between 1 and 2 pins
If no fans are short-circuited in Step 2, replace the
air intake fan (AIR).
If no fans are short-circuited in Step 2, replace the
engine PCB ASSY.
1-10
Remedy
"Maintenance mode
Remedy
Confidential
32". If