Code :

Code: F9 00
Description: ICU-PRT communication trouble (ICU detection)
Causes: Communication establishment error, framing, parity, protocol error
Remedy: Case 1 Cause Defective connection of the ICU/PRT PWB communication connector, defective harness between the ICU PWB and the PRT PWB, defective ICU PWB/ PRT PWB Check & Remedy Check connection and the harness between the ICU PWB and the MFP PWB. Check the machine earth. Replace the ICU or the PRT PWB.

Code: F9 01
Description: PRT DRAM trouble
Causes: DRAM in the PRT PWB cannot be accessed.
Remedy: Case 1 Cause Defective DRAM, defective installation of the DRAM Check & Remedy Replace the DRAM. Check connection of the DRAM.

Code: F9 03
Description: NIC port check error
Causes: Defective connection of the NIC connector, defective NIC PWB, defective PRT PWB
Remedy: Check the NIC connector again. Replace the HDD. Replace the PRT PWB.

Code: F9 20
Description: HDD trouble (PRT controller detection)
Causes: The HDD (option) does not operate normally in the machine with the HDD.
Remedy: Case 1 Cause Defective connection of the HDD connector, defective HDD, defective PRT PWB Check & Remedy Check the HDD again. Replace the HDD. Replace the PRT PWB.

Code: H2 00
Description: Thermistor open (HL1)
Causes: Thermistor open
Remedy: Case 1 Cause Disconnection of the fusing section connector Check & Remedy Check the connector and the harness between the thermistor and the control PWB. Case 2 Cause The fusing unit is not installed. Check & Remedy Install the fusing unit. Case 3 Cause Thermistor trouble, control PWB trouble, AC power supply trouble Check & Remedy Replace the thermistor or the control PWB. Check the AC power supply.

Code: H2 01
Description: Thermistor open (HL2)
Causes: Thermistor open
Remedy: Case 1 Cause Disconnection of the fusing section connector Check & Remedy Check the connector and the harness between the thermistor and the control PWB. Case 2 Cause The fusing unit is not installed. Check & Remedy Install the fusing unit. Case 3 Cause Thermistor trouble, control PWB trouble, AC power supply trouble Check & Remedy Replace the thermistor or the control PWB. Check the AC power supply.

Code: H3 00
Description: Fusing section high temperature trouble (THS1)
Causes: The fusing temperature exceeds 230°C.
Remedy: Common Check Use SIM 5-2 to check the heater lamp flashing operation. Case 1 Cause The heater lamp flashes properly with SIM 5-2. Thermistor trouble, disconnection of the fusing section connector Check & Remedy Check the thermistor and its harness. Cancel the error with SIM 14. Case 2 Cause The heater lamp keeps ON with SIM 5-2. Control PWB trouble, AC power supply trouble Check & Remedy Check the AC PWB and the control PWB lamp control circuit. Cancel the error with SIM 14.

Code: H3 01
Description: Fusing section high temperature trouble (THS2)
Causes: The fusing temperature exceeds 230°C.
Remedy: Common Check Use SIM 5-2 to check the heater lamp flashing operation. Case 1 Cause The heater lamp flashes properly with SIM 5-2. Thermistor trouble, disconnection of the fusing section connector Check & Remedy Check the thermistor and its harness. Cancel the error with SIM 14. Case 2 Cause The heater lamp keeps ON with SIM 5-2. AC power supply trouble, control PWB trouble Check & Remedy Check the AC PWB and the control PWB lamp control circuit. Cancel the error with SIM 14.