Brother MFC-J5335DW Service Manual page 69

■ Error Code 3500
Abnormal stop of head/carriage unit being driven. Causes other than paper jam
when ink is not discharging.
Step
1 Foreign materials in the engine unit
2 CR encoder strip stained
3 Switching lever guide out of
place
4 CR encoder strip defective
5 CR encoder sensor defective
6 Maintenance unit defective
7 Main PCB defective
■ Error Code 3800
Abnormal stop of head/carriage unit being driven. Caused by paper jam when ink is
not discharging.
< User Check >
- Remove the jammed paper in platen part.
Step
1 Foreign materials in the engine unit
2 CR encoder strip stained
3 Switching lever guide out of
place
4 CR encoder strip defective
5 CR encoder sensor defective
6 Maintenance unit defective
7 Main PCB defective
■ Error Code 3B00
Abnormal stop of head/carriage unit being driven. Causes other than paper jam
when ink is discharging.
Step
1 Foreign materials in the engine unit
2 CR encoder strip stained
3 CR encoder strip defective
4 CR encoder sensor defective
5 Main PCB defective
Cause
Remove foreign materials.
Clean the CR encoder strip.
Set the switching lever guide into place.
Replace the CR encoder strip.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the main PCB.
Cause
Remove foreign materials.
Clean the CR encoder strip.
Set the switching lever guide into place.
Replace the CR encoder strip.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the main PCB.
Cause
Remove foreign materials.
Clean the CR encoder strip.
Replace the CR encoder strip.
Replace the carriage PCB ASSY.
Replace the main PCB.
2-33
Solution
Solution
Solution
Confidential