• Code: E1-00
• Description: IMC communication trouble
  An abnormality occurs in communication between the CPU and the IMC.
• Causes: IMC abnormality IMC memory defect/data abnormality

• Code: E1-10
• Description: IMC trouble
  An abnormality occurs in the IMC.
• Causes: USB chip error/CODEC error on the IMC.

• Code: E1-13
• Description: IMC flash ROM error
  An abnormality occurs in the IMC flash ROM.
• Causes: IMC abnormality

• Code: E1-81
• Description: IMC communication interface error (Parity)
  A parity error occurs in communication between the CPU and the IMC.
• Causes: IMC abnormality IMC memory defect/data abnormality

• Code: E1-82
• Description: IMC communication interface error (Overrun)
  An overrun error occurs in communication between the CPU and the IMC.
• Causes: IMC abnormality IMC memory defect/data abnormality.

• Code: E1-84
• Description: IMC communication interface error (Framing)
  A framing error occurs in communication between the CPU and the IMC.
• Causes: IMC abnormality IMC memory defect/data abnormality.

• Code: E7-01
• Description: Duplex model memory setup error, memory not-detected error
• Causes: The memory is not set properly or the memory capacity is not set to the duplex setup (6M).

• 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.