• Code: E1-00
• Description: IMC PWB communication trouble
  An abnormality occurs in communication between the MCU PWB and the IMC PWB.
• Causes: IMC PWB-MCU PWB harness abnormality MCU PWB connector disconnection IMC PWB ROM defect/data abnormality
• Remedy: Replace the MCU PWB with new one.

• Code: E1-10
• Description: IMC PWB trouble
  An abnormality occurs in the IMC PWB.
• Causes: USB chip error/CODEC error on the IMC PWB
• Remedy: Replace the MCU PWB with a new one.

• Code: E1-13
• Description: IMC PWB flash ROM error
  An abnormality occurs in the IMC flash ROM.
• Causes: IMC PWB abnormality
• Remedy: Replace the MCU PWB with a new one. If downloading of the program is abnormally terminated, it may cause an error. Download the program again to avoid this.

• Code: E1-81
• Description: Interface error (Parity) in communication with the IMC PWB
  A parity error occurs in communication between the MCU PWB and the IMC PWB.
• Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality"
• Remedy: Replace the MCU PWB with new one.

• Code: E1-82
• Description: Interface error (Overrun) in communication with the IMC PWB
  An overrun error occurs in communication between the MCU PWB and the IMC PWB.
• Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality.
• Remedy: Replace the MCU PWB with new one.

• Code: E1-84
• Description: Interface error (Framing) in communication with the IMC PWB
  A framing error occurs in communication between the MCU PWB and the IMC PWB.
• Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality.
• Remedy: Replace the MCU PWB with new one.

• Code: E7-01
• Description: Duplex model memory error
  The memory capacity for the duplex model machine is improper. Insufficient memory capacity
• Causes: The memory capacity of the MCU PWB is improper.
• Remedy: Set SIM 26-39 code number to 2.

• Code: E7-02
• Description: LSU trouble
  The BD signal from the LSU cannot be detected in a certain cycle. (Always OFF or always ON)
• Causes: LSU connector or LSU harness defect or disconnection Polygon motor rotation abnormality Laser beams are not generated. MCU PWB abnormality.
• Remedy: Check connection of the LSU connector. Execute SIM 61-03 to check the LSU operations. Check that the polygon motor rotates normally. Check that the laser emitting diode generates laser beams. Replace the LSU unit. Replace the MCU PWB.