# Head Memory related Fatal Errors (4)

#Error code

• 031140 NVT check ID read parity error 0
• 031141 NVT check ID read parity error 1
• 031142 NVT check ID read parity error 2
• 031143 NVT check ID read parity error 3
• 031144 NVT check ID read parity error 4
• 031145 NVT check ID read parity error 5
• 031180 NVT nozzle rank read parity error 0
• 031181 NVT nozzle rank read parity error 1
• 031182 NVT nozzle rank read parity error 2
• 031183 NVT nozzle rank read parity error 3
• 031184 NVT nozzle rank read parity error 4
• 031185 NVT nozzle rank read parity error 5
• 031240 NVT nozzle rank mode value read parity error 0
• 031241 NVT nozzle rank mode value read parity error 1
• 031242 NVT nozzle rank mode value read parity error 2
• 031243 NVT nozzle rank mode value read parity error 3
• 031244 NVT nozzle rank mode value read parity error 4
• 031245 NVT nozzle rank mode value read parity error 5
• 031300 NVT mode value rank nozzles count read parity error 0
• 031301 NVT mode value rank nozzles count read parity error 1
• 031302 NVT mode value rank nozzles count read parity error 2
• 031303 NVT mode value rank nozzles count read parity error 3
• 031304 NVT mode value rank nozzles count read parity error 4
• 031305 NVT mode value rank nozzles count read parity error 5
• 031381 Head ID read parity error

#Occurrence condition

• The error prevention data when the unit reads each data is incorrect.
• Noise occurred when reading memory information or communication failed.
• The contents written to memory are incorrect.

#Assumed cause

• Data failure due to noise
• Head FFC failure / connection failure
• Head Failure

#Defect-related parts

• Head FFC
• Head Unit
• Main Board

#Troubleshooting