• Code: SC100
• Description: CIS Lamp/Scanner Motor Error (C6)
• Causes: A problem occurred with the CIS or scanner motor in the flatbed scanner: • After CIS power check • After shading • After CIS failed to return to home position
• Remedy: • Check the scanner harness connection • Replace the scanner

• Code: SC202
• Description: Polygon Motor On Timeout Error (C1)
• Causes: No lock signal was received within 10 sec. after the polygon motor turned on.
• Remedy: • Check the laser unit harness connection • Replace the laser unit

• Code: SC203
• Description: Polygon Motor Off Timeout Error (C2)
• Causes: The lock signal did not go HIGH (inactive) within 20 sec. after the polygon motor turned off.
• Remedy: • Check the laser unit harness connection • Replace the laser unit

• Code: SC204
• Description: Polygon Motor Lock Signal Error (C3)
• Causes: Four samplings within 200 ms revealed that the polygon motor lock signal remained HIGH beyond the prescribed number of revolutions.
• Remedy: • Check the laser unit harness connection • Replace the laser unit

• Code: SC220
• Description: Beam Synchronization Error (C4)
• Causes: Top cover (or maintenance cover) is down and locked, and the polygon motor is locked, but laser synchronization could not be achieved within 40 msec.
• Remedy: • Check the laser unit harness connection • Replace the laser unit

• Code: SC268
• Description: Laser Scanning Unit thermistor error (C0)
• Causes: After the main power switch ON, writing thermistor temperature is detected at 100ms intervals an ... • Less than -30 degrees Celsius is detected for more than 4 seconds (Thermistor defective). • More than 105 degrees Celsius is detected for more than 1 second (Thermistor short).
• Remedy: • Check the laser unit harness connection • Replace the laser unit

• Code: SC491
• Description: Bias Leak (C5)
• Causes: A bias leak has occurred for the drum charge, development charge, or transfer charge. PWM signals are sampled at 20 msec. intervals. This SC is issued if 10 PWM samplings within 200 msec. are abnormal. • HVPS harness loose, broken, defective • HVPS board defective • AIO terminal defective
• Remedy: • Cycle the machine off/on • Check all the harness connections of the HVPS • Check spring-loaded AIO terminal installation behind the HVPS. • Replace HVPS.

• Code: SC500
• Description: Main Motor Error (C6)
• Causes: One of the following problems occurred: • The machine failed to detect a LOCK signal within two sec. after the main motor was turned on. • The machine failed to detect a LOCK release signal with 2 sec. after the main motor was turned off.
• Remedy: • Cycle the machine off/on • Check the areas around motor and main drive train for a physical obstruction (paper scraps, etc.). • Clean the main motor drive train. • Replace the Main motor