Brother MFC-T4500DW - Carriage Cannot Detect Origin; Detected by the CR Encoder Sensor; Head Capping Is Unable

Confidential
2-34
■ Error Code 3100
Carriage cannot detect origin.
- Detected by the CR encoder sensor.
< User Check >
- Remove the jammed paper in platen part.
■ Error Code 3200
Head capping is unable.
< User Check >
- Remove the jammed paper in platen part.
Step Cause Solution
1 Foreign materials around the
maintenance unit
Remove foreign materials.
2 Foreign materials around the
flushing box
Remove foreign materials.
3 Switching lever guide out of
place
Set the switching lever guide into place.
4 CR encoder strip stained Clean the CR encoder strip.
5 Flushing box not mounted in
place
Set the flushing box into place.
6
CR guide rail not mounted in
place
Set the CR guide rail into place.
7 Platen not mounted in place Set the platen into place.
8 Maintenance unit not mounted
in place
Set the maintenance unit into place.
9 Head/carriage unit not
mounted in place
Set the head/carriage unit into place.
10 CR encoder strip defective Replace the CR encoder strip.
11
CR encoder sensor defective Replace the carriage PCB ASSY.
12 Switching lever guide defective
Maintenance unit defective
Replace the maintenance unit.
13 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Foreign materials around the
maintenance unit
Remove foreign materials.
2 Switching lever guide out of
place
Set the switching lever guide into place.
3 CR encoder strip defective Replace the CR encoder strip.
4 Switching lever guide defective
Maintenance unit defective
Replace the maintenance unit.
5 Main PCB defective Replace the main PCB.