Head Voltage Does Not Rise; Head Voltage Drops Quickly - Brother DCP-J552DW Service Manual

■ Error Code 49
Unable to print 49

Head voltage does not rise.

Error Code 4F
Unable to print 4F

Head voltage drops quickly.

<User Check>
- This may occur when the surrounding temperature is low. Increase the surrounding temperature
before use.
- Unplug the power cord from the outlet. Plug it again after several seconds and check if the
problem has been resolved.
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
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 ASSY.
Replace the main PCB ASSY.
2-35
LCD
LCD
Solution
Confidential