Brother DCP-J125

• Code: 48
• Description: Weak connection of the head flat cables.
• Causes: Head flat cables or carriagehead flat cable broken or not connected
• Remedy: Correct the connection of the head flat cables. Replace the carriage PCB ASSY. Replace the head/carriage unit. Replace the main PCB.

• Code: 49
• Description: The head drive voltage has not risen to the specified level.
• Causes:
• Remedy: Head flat cables and carriage-head flat cable not connected correctly Correct those flat cables. Head/carriage unit defective Replace the carriage PCB ASSY. Replace the head/carriage unit. Main PCB defective Replace the main PCB. Power supply PCB defective Replace the power supply PCB.

• Code: 4F
• Description: The head drive voltage has dropped from the high to low level in an abnormally short period. The head drive voltage has not risen to the specified level within the specified period in the self-diagnosis.
• Causes:
• Remedy: Piezoelectric ceramic actuator defective (Cracks or rare short) Replace the carriage PCB ASSY. Replace the head/carriage unit. Main PCB defective Replace the main PCB.

• Code: 50, 51
• Description: The purge cam switch does not come ON or OFF even after the purge cam has been driven by the specified number of pulses.
• Causes:
• Remedy: Planetary arm assembly not engaged correctly Set the maintenance unit into place. If the planetary arm does not move smoothly, clean it. Purge cam switch harness not connected correctly Correct the connection. Purge cam switch broken Replace the maintenance unit. Gear(s) on the maintenance unit broken Paper feed motor defective Replace the paper feed motor. Power supply PCB defective Replace the power supply PCB. Main PCB defective Replace the main PCB.

• Code: 52
• Description: The purge cam switch does not come ON at each detection point.
• Causes:
• Remedy: Planetary arm assembly not engaged correctly Set the maintenance unit into place. If the planetary arm does not move smoothly, clean it. Purge cam switch harness not connected correctly Correct the connection. Purge cam switch broken Replace the purge cam switch. Gear(s) on the maintenance unit broken Abnormal load applied to the purge cam Replace the maintenance unit. Paper feed motor broken Replace the paper feed motor. Main PCB defective Replace the main PCB.

• Code: 57
• Description: The head/carriage unit does not return to the home position (capping position).
• Causes:
• Remedy: Head cap unit, head wiper or other parts on the maintenance unit interfering with the head/carriage unit Set these parts back into place. If any part on the maintenance unit does not operate smoothly, replace the unit. CR encoder strip stained Replace the CR encoder strip. Any obstacles on the travel path of the head/carriage unit Clean the CR guide rail and CR support chassis. Carriage PCB ASSY defective Replace the carriage PCB ASSY. Carriage motor defective Replace the carriage motor. Head/carriage unit defective Replace the head/carriage unit. Main PCB defective Replace the main PCB. Power supply PCB defective Replace the power supply PCB.