Brother MFC-J5335DW Service Manual page 72

■ Error Code 4300
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
■ Error Code 4400
Head driver IC detects abnormal temperature during operation or stand-by.
Step
1 Carriage flat cable connection
failure
2 Head property information not
input
3 Head thermistor defective
Head defective
4 Main PCB defective
■ Error Code 4600
Purge count or flushing count overflown.
Step
1 Ink absorber box or flushing
box full.
2 Main PCB defective
■ Error Code 4800
Head flat cable detected to be not correctly inserted.
Step
1 Carriage flat cable connection
failure
Head
2 flat cable connection
failure
3 Carriage PCB defective
4 Head defective
5 Main PCB defective
Cause
Reconnect the carriage flat cable.
Replace the head/carriage unit.
Replace the main PCB.
Cause
Reconnect the carriage flat cable.
Input the head property information (refer to
Chapter 5, Section 1.3.23 "Updating of Head
Property Data and Backup/Restoration of Head
Calibration Data (Maintenance mode
Replace the head/carriage unit.
Replace the main PCB.
Cause
Replace ink absorber box or flushing box,
resetting purge counter or flushing counter.
Replace the main PCB.
Cause
Reconnect the carriage flat cable.
Reconnect the h
Replace the carriage PCB ASSY.
Replace the head/carriage unit.
Replace the main PCB.
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Solution
Solution
68)")
Solution
Solution
ead
flat cable.
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