Description: Sensor 6: Fusing Roller Front Side Disconnection 0 degrees or lower was detected for (t1) seconds consecutively. Number of times: 10 or more D135 (Japan): 75 (seconds) D136 (Japan)/D135 (NA): 75 (seconds) D136 (NA)/D135 (EU)/D136(EU): 75 (seconds) D137 (Japan): 75 (seconds) D138 (Japan)/D137 (NA)/D138 (NA)/D137 (EU)/D138 (EU): 75 (seconds) Monitored at: All times, though SC is not issued when temperature is not controlled (when in off mode/sleep mode, when a door, excluding the toner supply door, is open, or when the heater relay is off).
Remedy: • Replace the NC sensor. • Reconnect the connector. • Replace the connector. • Replace the unit.
Code: SC577-00
Description: Sensor 6: Fusing Roller Front Side: Overheat detection (software) (T3) degrees centigrade or higher was detected for (t6) seconds consecutively. Number of times: 10 or more D135 (Japan):T3 = 250, t6 = 1 D136 (Japan)/D135 (NA): T3 = 250, t6 = 1 D136 (NA)/D135 (EU)/D136(EU): T3 = 250, t6 = 1 D137 (Japan): T3 = 250, t6 = 1 D138 (Japan)/D137 (NA)/D138 (NA)/D137 (EU)/D138 (EU): T3 = 250, t6 = 1 Monitored at: All times, though SC is not issued when temperature is not controlled (when in off mode/sleep mode, when a door, excluding the toner supply door, is open, or when the heater relay is off).
Causes: • Triac shorted. • IOB board defective.
Remedy: • Replace the IOB board. • Replace the unit.
Code: SC579-00
Description: Sensor 7: Fusing Roller Core Disconnection 0 degrees or lower was detected for 1000 seconds consecutively. Number of times: 10 or more Monitored at: All times, though SC is not issued when temperature is not controlled (when in off mode/sleep mode, when a door, excluding the toner supply door, is open, or when the heater relay is off). Monitored only when SP1-107-024 is set to ON. SP1-107-024: 0: OFF (default) 1: ON
Remedy: • Replace the thermistor. • Reconnect the connector. • Replace the connector. • Replace the unit.
Code: SC580-03
Description: Sensor 7: Fusing Roller Core: Reload Failure: Timeout 2 Failed to reach reload temperature after (t5) seconds from the start of heater control. D135 (Japan):t5 = 2700 D136 (Japan)/D135 (NA): t5 = 2700 D136 (NA)/D135 (EU)/D136(EU): t5 = 2700 D137 (Japan): t5 = 2700 D138 (Japan)/D137 (NA)/D138 (NA)/D137 (EU)/D138 (EU): t5 = 230 Monitored at: Startup (Power-on, when a cover is closed, when fuser heater is under control)
Causes: • IH malfunctioning • Overheating prevention device worked.
Remedy: • Replace the thermopile. • Use with supported input voltage • Replace the IH coil/IH inverter. • Replace the unit.
Code: SC581-00
Description: Secondary Power Cord Not Connected The main power cord is connected but the secondary power cord is not connected.
Causes: The secondary power cord is not connected.
Remedy: • Turn the machine off and plug in the secondary power cord again. • Replace the harness. • Replace the AC drive/IOB.
Code: SC582-01
Description: IGBT Overvoltage Error Error notification from the IH inverter with a command (0x64 bit 0)
Causes: • Fusing unit defective • IH inverter malfunctioning
Remedy: • After removing the cause of the SC, set "Fusing SC Clear" in the SP mode, and then turn the main power off/on. • If necessary, replace: Fusing unit, IH inverter