Abnormal Head Drive Voltage. (Does Not Rise To The Specified Level); The Head Drive Voltage Has Dropped From The High To Low Level In An Abnormally Short Period; Purge Cam Switch Does Not Come On - Brother DCPJ525W Service Manual

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Error Code 49
Unable to Print 49

Abnormal head drive voltage. (Does not rise to the specified level)

Error Code 4F
Unable to Print 4F

The head drive voltage has dropped from the high to low level in an abnormally short period.

Step
1
Connection failure of the head
flexible cable or carriage flat
cables
2
Carriage PCB defective
3
Print head defective
4
Power supply PCB defective
5
Main PCB defective
Error Code 50
Unable to Clean 50

Purge cam switch does not come ON.

Step
1
Foreign materials in the
maintenance unit or around the
paper feed roller
2
Purge cam switch harness
connection failure
3
ASF switching gear A or B
broken
4
Paper feed motor defective
5
ASF drive ASSY defective
6
Main PCB defective
Cause
Check the connection and reconnect the
corresponding cable(s).
Replace the carriage PCB ASSY.
Replace the head/carriage unit.
Replace the power supply PCB ASSY.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Check the connection and reconnect the harness.
Replace the ASF switching gear A or B.
Replace the paper feed motor.
Replace the ASF drive ASSY.
Replace the main PCB ASSY.
2-35
LCD
LCD
Solution
LCD
Solution
Confidential

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