• Code: SC272-01
• Description: LD Driver Communication Error If the value is not same when the machine reads and writes the same registration at the machine start-up. If the communication parity retries three consecutive times, the SC is generated.
• Causes: • CPU defective • IPU defective • BCU defective • Harness defective
• Remedy: • Cycle the main power off/on. • Replace the laser unit. • Replace the harness • Replace the IPU board

• Code: SC272-10
• Description: LD Driver Communication Error: Others If the “Door Open” status does not change to “Door Close” after closing the door.
• Causes: • CPU defective • IPU defective • BCU defective • Harness defective
• Remedy: • Cycle the main power off/on. • Replace the laser unit. • Replace the harness. • Replace the IPU board.

• Code: SC302-00
• Description: High Voltage Power Source: Charge: Output Error The machine detects the error detection signal “L (unexpected)” 10 times for 200 msec consecutively when monitoring the error signal every 20 msec during outputting the PWM signal.
• Causes: Hardware error • Input / Output connector is disconnected. • Input / Output harness is short-circuited. • Surface/air clearance insufficient (arc discharge) • BCU error (signal error) • HVPS defective Load error • Grounding fault of charging output, short-circuit with other outputs • Surface/air clearance insufficient in charging output path (including distance from other outputs) • Unexpected deterioration of drum and over current due to pinholes gap error between the drum and charge roller (PCU error). • Over current due to drum surface condensation • PCU is disconnected.
• Remedy: • Cycle the main power off/on. • Replace the high HVPS. • Replace the harness of the HVPS. • Replace the harness of the PCU. • Replace the PCU.

• Code: SC324-01
• Description: Development Motor: Bk: Lock Lock signals are observed at 2 sec intervals during motor ON, and a High level is detected at least 20 times
• Causes: • Motor defective • Connector disconnected • Harness broken • IOB defective • Unit torque increased
• Remedy: • Replace the development motor. • Reconnect the connector. • Replace the harness. • Replace the IOB. • Replace the development unit. • Replace the driven unit.

• Code: SC360-01
• Description: TD Sensor Adjustment Error • When Mu count exceeds the judgment threshold of no developer status. • When Mu count does not satisfy the following target ranges for 3 times in a row. • Upper threshold • Lower threshold
• Causes: • TD sensor defective • Loose connection • Harness broken • Developer toner density differs from initial developer
• Remedy: • Replace the TD sensor. • Replace the development unit.

• Code: SC361-01
• Description: TD Sensor Output Error: Upper Limit (K) The following condition continuously exceeds the upper limit threshold value (SP3-211-003). • TD sensor output: Vt (SP3-210-001) > output upper limit error threshold (SP3-211-002)
• Causes: • TD sensor connector dropout (connection fault)
• Remedy: • Check if the TD sensor connector is connected. • Check the harness of the TD sensor (disconnection, etc.). • Replace the TD sensor.

• Code: SC362-01
• Description: TD Sensor Output Error: Lower limit (K) TD sensor output: Vt (SP3-210-001) < output lower limit error threshold (SP3-211-004) is continuously below the lower limit occurrence threshold value (SP3-211-005)
• Causes: TD sensor connector missing/dropout
• Remedy: • Check if the TD sensor connector is connected. • Check the harness of the TD sensor (disconnection, etc.). • Replace the TD sensor.

• Code: SC370-00
• Description: ID Sensor Calibration Error Regular reflection optical output voltage of the ID sensor: Vsg_reg cannot be adjusted to within target range. Upper limit (SP3-320-013: initial value 4.5V) Lower limit (SP3-320-014: initial value 3.5V)
• Causes: • ID sensor connector missing/ connection fault • ID sensor detection window dirt • ID sensor malfunction
• Remedy: • Check for ID sensor connector missing. If it is missing, reconnect it. • Check for dirt on the ID sensor detection window. If the detection window is dirty, clean by predetermined method (do not wipe dry). • If neither of the above have occurred, perform ID sensor replacement.