• Code: SC277-10
• Description: LEDA communication error
• Causes: The head type data was read three times in succession (277-00) • Defective ASIC • Defective LEDA (277-10) • LEDA power source error
• Remedy: • Turn the main power OFF and then ON. • Replace the LED head

• Code: SC302
• Description: High voltage output error: Charge unit /Development unit
• Causes: This SC is issued if the BCU detects a short in the power pack 10 times consecutively.
• Remedy: Open circuit (+) / Short circuit (-) • Turn the main power OFF and then ON. • Replace the controller board. • Check the connector connection.

• Code: SC332-00
• Description: Toner supply transfer lock
• Causes: This SC is issued if the error that the toner is not supplied is detected n times consecutively (n: SP2-931-005) on the condition that the toner cartridge is not in end • Overload on the toner transferring part (clogging of toner) • Screw for detecting PCDU does not turn • Detector element (sensor) defective: light leak • Supplying pick does not engage • Defective Supplying clutch • Defective Drive mechanism of screw for supplying toner cartridge
• Remedy: • Turn the main power OFF and then ON.

• Code: SC364-00
• Description: TE sensor output count error
• Causes: When the average value of the toner end sensor output count is 0 n times consecutively (n: SP2-931-003) • Connector contact failure/disconnected/broken • Detector element (sensor) does not emit light • Detecting surface inside the developing device is stained
• Remedy: • Turn the main power OFF and then ON.

• Code: SC440-00
• Description: High voltage output error: Transfer unit
• Causes: This SC is issued if the BCU detects a short in the power pack 10 times consecutively.
• Remedy: Open circuit (+) / Short circuit (-) • Turn the main power OFF and then ON. • Replace the controller board. • Check the connector connection.

• Code: SC498-00
• Description: Temperature/humidity Sensor error
• Causes: • Temperature sensor output error: Out of range between 0.76 V and 2.90 V • Humidity sensor output error: 2.4 V or more • Unmounted sensor (Disconnected connector or broken wire) • Failed sensor
• Remedy: • Turn the main power OFF and then ON. • Check that the connector is set. • Set the sensor. • Replace the sensor. • Replace the connector.

• Code: SC508-00
• Description: By-pass bottom plate operation error
• Causes: The signal from the by-pass bottom plate position sensor has not changed (the signal has not changed from ON to OFF or vice versa) for 4 seconds or more after the start of reverse Paper Feed Unit rotation, If the error is detected three times in succession, the SC number is displayed on the operation panel. • By-pass bottom plate sensor connector disconnected or other error • By-pass bottom plate sensor feeler stuck or other error
• Remedy: • Check and replace the by-pass bottom plate sensor connector connection. • Replace the by-pass bottom plate sensor feeler. • Replace the Paper Feed Motor. • Replace the harness. • Replace the BCU.

• Code: SC520-00
• Description: Main motor error
• Causes: When the main motor is driven, the lock (state of rotation) signal is checked every 100 milliseconds. If the machine detects the lock signal in the High status 20 times in succession, it reports this error. • The main motor incurs too much load from a defective unit. • The main motor is defective.
• Remedy: • Replace the defective unit or the motor