• Code: 510
• Description: LCT tray malfunction
  One of the following conditions is detected: • When the bottom plate is lifted, the upper limit sensor does not come on for 18 s. • When the bottom plate is
  lowered, the lower limit sensor does not come on for 18 s.
  • After lift begins, the upper limit sensor does not switch on before the pick-up solenoid switches on. • The paper end sensor switches on during lift and the upper limit
  sensor does not switch on for 2.5 s, and a message prompts user to reset paper.
• Causes: • Tray lift motor defective or connector disconnected • Lift sensor defective or disconnected • Pick-up solenoid defective or disconnected • Paper end sensor defective
• Remedy:

• Code: 515
• Description: Tandem rear fence motor error
  One of the conditions is detected: • The return sensor does not switch on within 10 s. after the rear fence motor switches on. • The HP sensor does not switch on 10 s. after the rear fence motor switches on. • The HP sensor and return sensor switch on at the same time.
• Causes: • Rear fence motor defective or poor connection • Paper or other obstacle interfering with operation of the sensors • Paper or other obstacle trapped between tray and motor • Motor mechanical overload due to obstruction • Return sensor or HP sensor defective or dirty Note • This problem will not issue the SC code on the operation panel. • The machine will prompt the operator to reset tray by opening and closing it. • If the problem persists, the machine will display again and the tray cannot be used.
• Remedy:

• Code: 520
• Description: Duplex jogger motor error 1
  When the jogger fence moves to the home position, the jogger HP sensor does not turn on even if the jogger fence motor has moved the jogger fence 153.5 mm.
• Causes: • Paper or other obstacle has jammed mechanism • Sensor connector disconnected or defective • Sensor defective
• Remedy:

• Code: 521
• Description: Duplex jogger motor error 2
  When the jogger fence moves from the home position, the jogger fence HP sensor does not turn off even if the jogger motor has moved the jogger fence 153.5 mm.
• Causes: • Paper or other obstacle has jammed mechanism • Sensor connector disconnected or defective • Sensor defective
• Remedy:

• Code: 531
• Description: Fusing exit motor error
  The PLL lock signal was low for 2 s during motor operation.
• Causes: • Motor lock caused by physical overload • Motor drive PCB defective
• Remedy:

• Code: 541
• Description: Fusing thermistor open
  The fusing temperature detected by the center thermistor was below 0°C for 7 s.
• Causes: • Thermistor open • Thermistor connector defective • Thermistor damaged, or out of position • Fusing temperature –15% less than the standard input voltage
• Remedy:

• Code: 542
• Description: Fusing temperature warm-up error
  One of the following occurred: • After power on, or after closing the front door, the hot roller does not reach the 100°C control temperature within 25 s. • 5 sec. after temperature rise started, temperature remained below 21°C after 5 samplings. • Fusing unit did not attain reload temperature within 48 s. of the start of fusing temperature control.
• Causes: • Fusing lamp disconnected • Thermistor warped, out of position • Thermostat not operating
• Remedy:

• Code: 543
• Description: Fusing lamp overheat error 1 (software)
  Central thermistor detected a temperature of 240°C at the center of the hot roller. Fusing temperature control software error
• Causes: • PSU defective • IOB defective • BICU defective
• Remedy: