• Code: SC327
• Description: LD unit home position error 1
  The LD unit home position sensor does not detect an on condition when the LD unit moves to its home position.
• Causes: • LD unit home position sensor defective • LD positioning motor defective

• Code: SC328
• Description: LD unit home position error 2
  The LD unit home position sensor does not detect an off condition when the LD unit moves from its home position.
• Causes: • LD unit home position sensor defective • LD positioning motor defective • LD unit movement blocked because of incorrect connector routing

• Code: SC329
• Description: LD unit home position error 3
  When the LD unit moves to switch the laser beam pitch (except for initial movement at adjustment), the LD unit HP sensor turns on before the movement reaches the adjusted value
• Causes: • When the main switch is on: SP2-109-3 or SP2-109-4 is not done after SP5- 801 is performed. • While printing: The LD unit does not move so well because of an unexpected failure, such as the cable being pinched somewhere. • LD unit defective

• Code: SC330
• Description: LD unit no initial setting
  The main switch is on or a printing/copying job starts without doing SP2-109-3 or SP2-109-4 after SP5-801 is performed.
• Causes: • SP2-109-3 or SP2-109-4 is not done after SP5-801 is performed.

• Code: SC331
• Description: LD unit home position error 4
  When the LD unit moves to switch the laser beam pitch, the LD unit HP sensor does not turn on, even when the expected time for reaching the home position comes, according to the data for the present position stored in NVRAM.
• Causes: • The LD unit does not move so well because of an unexpected failure, such as the cable being pinched somewhere. • LD unit defective • HP sensor defective • NVRAM defective

• Code: SC332
• Description: LD unit present position error
  When the LD unit moves to switch the laser beam pitch, the data for the present position stored in NVRAM is out of the adjustment range.
• Causes: • The LD unit does not move so well because of an unexpected failure, such as the cable being pinched somewhere. • LD unit defective • HP sensor defective • NVRAM defective

• Code: SC335
• Description: Polygonal mirror motor error 1
  The XSCRDY signal does not become low within 20 seconds after the polygonal mirror motor turns on or the polygon motor speed is changed.
• Causes: • Poor cable connection to the polygonal mirror motor driver. • Polygonal mirror motor (driver) defective • BICU defective

• Code: SC336
• Description: Polygonal mirror motor error 2
  The XSCRDY signal does not become high within 20 seconds after the polygonal mirror motor turns off.
• Causes: • Poor cable connection to the polygonal mirror motor driver. • Polygonal mirror motor (driver) defective • BICU defective