• Code: SC204
• Description: Polygon motor error: XSCRDY signal error
  The polygon motor stopped operating while the LD unit was firing.
• Causes: • Harness to polygon motor driver board disconnected, defective • Polygon motor defective • Polygon motor driver board defective

• Code: SC210
• Description: Laser beam detection error: K (Black)
  The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
• Causes: • Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

• Code: SC211
• Description: Laser beam detection error: Y (Yellow)
  The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
• Causes: • Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

• Code: SC212
• Description: Laser beam detection error: M (Magenta)
  The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
• Causes: • Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

• Code: SC213
• Description: Laser beam detection error: C (Cyan)
  The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
• Causes: • Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

• Code: SC220
• Description: Laser Synchronization Detector Error: K Leading Edge: LD0
  While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 black, or leading edge, even after the laser diode has been firing for 2 sec.
• Causes: • Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

• Code: SC221
• Description: Laser Synchronization Detector Error: K Leading Edge (Not LD0)
  While the polygon motor is rotating normally, no synchronizing detection signal is output for black, leading edge for any LD other than LD0.
• Causes: • Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

• Code: SC222
• Description: Laser Synchronization Detector Error: Y Leading Edge: LD0
  While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 yellow, leading edge.
• Causes: • Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective