Sharp AL1556

• Code: 16
• Description: Abnormal laser output
  When the laser output is stopped, HSYNC is detected.
• Causes: Laser abnormality MCU PWB abnormality.

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

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

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

• 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.