Code :

Code: L4-55
Description: Process cooling fan trouble
The lock signal is detected during operation of the process cooling fan
Causes: Harness connection trouble between the PCU PWB and the fan motor. PCU PWB trouble. Fan motor trouble. The fan is not rotating due to other trouble. (Power is not supplied to the fan motor.)
Remedy: Use Sim. 6-2 to check the operation of the fan motor. Check the harness and the connector between the PCU PWB and the fan motor. Replace the PCU PWB. Replace the fan motor.

Code: L4-58
Description: Process section peripheral fan trouble
The motor lock signal is detected during rotation of the cooling fan around the process section.
Causes: The fan does not rotate because of disconnection of the fan connector or other trouble.
Remedy: Check the harness and the connector between the PCU PWB and the fan. Use SIM6-2 to check that the fan is actually rotating.

Code: L6-10
Description: Polygon motor trouble
The polygon motor does not reach the specified RPM within the specified time after starting rotation of the polygon motor.
Causes: Polygon motor trouble. LSU control PWB trouble. Connection trouble of the connector and the harness.
Remedy: Use SIM61-1 to check the operation of the polygon motor. Check connection of the connector and the harness. Replace the LSU. Replace the LSU control PWB.

Code: L8-01
Description: Full wave signal detection error
The full wave signal is not detected.
Causes: PCU PWB trouble. Power unit trouble. Connection trouble of the connector and the harness.
Remedy: Replace the PCU PWB. Replace the power unit. Check connection of the connector and the harness.

Code: L8-02
Description: Full wave signal error
Causes: An abnormality in the full wave signal frequency is detected. (The frequency is detected as 65Hz or above, or 45Hz or less.) PCU PWB trouble. Power unit trouble. Connection trouble of the connector and the harness. Power frequency, waveform abnormality.
Remedy: Replace the PCU PWB. Replace the power unit. Check connection of the connector and the harness. Check the power waveform.

Code: L8-20
Description: Communication error of MFPC PWB/ SCN mother board
Causes: SCN mother board PWB - MFPC PWB connection trouble. MFPC PWB trouble. SCN mother board trouble.
Remedy: Check connection between the SCN mother board PWB and the MFPC PWB. Check the ground of the main unit. Replace the MFPC PWB. Replace the SCN mother board.

Code: P1-00
Description: PCI communication error
Causes: Communication error between the MFPC PWB and the PCI. Connection failure of connectors and harness between the MFPC PWB and the PCI. MFPC PWB trouble. PCI control PWB trouble.
Remedy: Check connection of the harness and connectors between the MFPC PWB and the PCI. Check the MFPC PWB, and replace if necessary. (Refer to the necessary procedures after replacement of the MFPC PWB in the Service Manual, and perform the procedures.) Check the PCI control PWB, and replace if necessary.

Code: P1-01
Description: PCI fan error
Causes: The PCI fan operation signal is not detected. PCI fan trouble. PCI control PWB trouble.
Remedy: Check connection of the connectors and harness between the PCI fan and the PCI control PWB. Check the PCI control PWB, and replace if necessary. Check the PCI fan, and replace if necessary.