Head Voltage Does Not Turn Off; Head Thermistor Defective; Head Thermistor Detects -20 Degree-C Or Less And 80 Degree-C Or More - Brother MFC-J2320 Service Manual

Error Code 42

Unable to Print 42

Head voltage does not turn OFF.

User Check
- They may occur due to lower surrounding temperature. Use in warmer surrounding
temperature.
Step
1 Head flat cable connection
failure
2 Carriage flat cable connection
failure
3 Carriage PCB defective
4 Head defective
5 Power supply PCB defective
6 Main PCB defective
Error Code 43

Unable to Print 43

Head thermistor defective

Head thermistor detects -20 degree-C or less and 80 degree-C or more when power is
on.
Step
1 Carriage flat cable connection
failure
2 Head thermistor defective
3 Main PCB defective
Cause
Reconnect the head flat cable.
Reconnect the Carriage flat cable.
Replace the carriage PCB ASSY.
Replace the head/carriage unit.
Replace the power supply PCB.
Replace the main PCB ASSY.
Cause
Reconnect the Carriage flat cable.
Replace the head/carriage unit.
Replace the main PCB ASSY.
2-35
LCD
Solution
LCD
Solution
Confidential