Brother MFC3820CN

• Code: 43
• Description: Head thermister broken.
• Causes: • Print head unit • Carriage ASSY •Main PCB • Driver PCB

• Code: 44
• Description: Head thermister short-circuited or error in its related parameters stored in the EEPROM of the main PCB
• Causes:

• Code: 45
• Description: Flushing operation abnormally ended. (The head temperature has arisen abnormally.)
• Causes: • Print head unit

• Code: 46
• Description: The number of performed purge sequences has reached the limit.
• Causes: • Ink absorber box • Driver PCB

• Code: 47
• Description: Head parameters stored in the EEPROM are invalid. (This code may appear only in the maintenance mode.)
• Causes: • Print head unit •Main PCB • Power supply PCB • Driver PCB

• Code: 48
• Description: Weak connection of the head flat cable M (main-head power line).or W (driver-head signal line)
• Causes: • Main PCB • Head flat cable M • Driver PCB • Head flat cable W • Print head unit