Confidential
2-36
Error Code 4F
Head voltage drops too quick.
User Check
- They may occur due to lower surrounding temperature. Use in warmer surrounding
temperature.
Error Code 50
The purge cam switch is not switching ON/OFF.
User Check
- Remove the jammed paper in platen part.
Unable to Print 4F
LCD
Step
Cause
Solution
1
Head flat cable connection
failure
Reconnect the head flat cable.
2
Carriage flat cable connection
failure
Reconnect the carriage flat cable.
3
Carriage PCB defective
Replace the carriage PCB ASSY.
4
Head defective
Replace the head/carriage unit.
5
Power supply PCB defective
Replace the power supply PCB ASSY.
6
Main PCB defective
Replace the main PCB ASSY.
Unable to Print 50
LCD
Step
Cause
Solution
1
Foreign materials in the
maintenance unit
Remove foreign materials.
2
Purge cam switch harness
connection failure
Reconnect the purge cam switch harness.
3
Paper feed motor defective
Replace the paper feed motor.
4
PF encoder sensor defective
Replace the PF encoder sensor PCB ASSY.
5
Maintenance unit defective
Replace the maintenance unit.
6
Main PCB defective
Replace the main PCB ASSY.
Summary of Contents for MFC-J6920DW
Page 123: ...3 3 Confidential 2 PACKING ...
Page 146: ...3 26 Confidential 3 Set the protective part Protective part ...
Page 308: ...5 37 Confidential pfadj2 Pattern ...
Page 315: ...5 44 Confidential Margin Check Pattern ...
Page 362: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...