Description: Polygon motor error: XSCRDY signal error
Detecting XSCRDY signal "H" (Inactive) while writing.
Causes: • Harness and the polygon motor driver.
• Defective the polygon motor or the polygon motor driver.
• Bad connection or disconnection between the I/F
Code: 220
Description: LD synchro-detection error
NOT output certain syncro-detection signal within 200ms after LD lighting in steady-rotation.
Causes: • Bad connection or disconnection between the I/F harness and the syncro-detection Unit.
• Defective the syncro-detection
• NOT the beam going into the photo detector
• Defective the GAVD related parts, the LD driver, the LDB, the BICU
Code: 230
Description: FGATE: Fail to switch "ON"
NOT switching FGATE signal on within one second after writing start-timing.
Causes: • Defective the GAVD, PCI bridge ASIC
• BICU, the Controller board wrong or bad connection
• Defective the harness between the BICU to the LDB
Code: 231
Description: FGATE: Fail to switch "OFF"
NOT switching FGATE signal off within nine seconds after writing end-timing.
Causes: • BICU, the Controller board wrong or bad connection
• Defective the harness between the BICU to the LDB
• Defective the GAVD, PCI bridge ASIC
Code: 240
Description: LD error
Detecting two LD error flags in series when LD lighting after the LD initializing
Causes: • Characteristic degradation of the LD (LD broken, electric current versus light output characteristic shift, etc)
• Bad connection or disconnection of the harness to the LD
• Defective the LD driver parts
Code: 270
Description: GAVE communication error
Doesn't the value you set in a certain resister accord with the value of the same resister on reading.
Causes: • Defective the BICU
• Defective the GAVD, the CPU