SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC441-01

D

Image transfer motor (M6) startup error
The steady signal does not turn on after passing 3 seconds since the motor started up.
  • The image transfer motor (M6) drive is not transmitted correctly.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The image transfer motor (M6) is not properly attached, or it is faulty.
  • The firmware is not the latest version.
  • The engine relay PCB (PCB21) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Check if the excessive load is given by rotating the drive gears, roller and the transfer belt, and clean the drive section for the ITB unit.
  2. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Image transfer motor (M6)  - Engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  3. Reattach the image transfer motor (M6). If it is not repaired, replace it.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the engine relay PCB (PCB21).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC441-02

D

Image transfer motor (M6) steady-state error
The steady signal turns off for 2 seconds continuously after the motor is stabilized.
  • The image transfer motor (M6) drive is not transmitted correctly.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The image transfer motor (M6) is not properly attached, or it is faulty.
  • The firmware is not the latest version.
  • The engine relay PCB (PCB21) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Check if the excessive load is given by rotating the drive gears, roller and the transfer belt, and clean the drive section for the ITB unit.
  2. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Image transfer motor (M6)  - Engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  3. Reattach the image transfer motor (M6). If it is not repaired, replace it.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the engine relay PCB (PCB21).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC490-01

D

Toner sensor (S9) K error
The sensor output value is 0.1 V or smaller, or 3.2 V or larger during a certain time.
  • The toner cartridge is not properly installed.
  • The toner supply opening of the toner cartridge cannot be opened by operating the lever.
  • The drive gear or the coupling do not properly rotate or the excessive load is applied to them.
  • The toner supply opening on the ITB unit is not opened even when installing toner cartridge K.
  • Toner is clogged at the toner supply path in the ITB unit.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The gear or spiral does not rotate in the development unit, or toner sensor (S9) K is faulty.
  • Toner motor (M11) K is not properly attached, or it is faulty.
  • The drum relay PCB (PCB22) is faulty.
  • The engine relay PCB (PCB21) is faulty.
  • The firmware is not the latest version.
  • The main/engine PCB (PCB1) is faulty.
  1. Reinstall toner cartridge K.
  2. Replace toner cartridge K.
  3. Clean the drive gear and the coupling and apply the grease to them.
  4. Correct the toner supply opening at the upper part of the ITB unit so that it is opened by the lever operation.
  5. Clean the inside of the ITB unit. If not resolved, replace it.
  6. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Development unit K - drum drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
    • Toner motor (M11) K - engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  7. Replace development unit K.
  8. Reattach toner motor (M11) K. If it is not repaired, replace it.
  9. Replace the drum relay PCB (PCB22).
  10. Replace the engine relay PCB (PCB21).
  11. Upgrade the engine firmware to the latest version.
  12. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC490-02

D

Toner sensor (S9) C error
The sensor output value is 0.1 V or smaller, or 3.2 V or larger during a certain time.
  • The toner cartridge is not properly installed.
  • The toner supply opening of the toner cartridge cannot be opened by operating the lever.
  • The drive gear or the coupling do not properly rotate or the excessive load is applied to them.
  • The toner supply opening on the ITB unit is not opened even when installing toner cartridge C.
  • Toner is clogged at the toner supply path in the ITB unit.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The gear or spiral does not rotate in the development unit, or toner sensor (S9) C is faulty.
  • Toner motor (M11) C is not properly attached, or it is faulty.
  • The drum relay PCB (PCB22) is faulty.
  • The engine relay PCB (PCB21) is faulty.
  • The firmware is not the latest version.
  • The main/engine PCB (PCB1) is faulty.
  1. Reinstall toner cartridge C.
  2. Replace toner cartridge C.
  3. Clean the drive gear and the coupling and apply the grease to them.
  4. Correct the toner supply opening at the upper part of the ITB unit so that it is opened by the lever operation.
  5. Clean the inside of the ITB unit. If not resolved, replace it.
  6. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Development unit C - drum drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
    • Toner motor (M11) C - engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  7. Replace development unit C.
  8. Reattach toner motor (M11) C. If it is not repaired, replace it.
  9. Replace the drum relay PCB (PCB22).
  10. Replace the engine relay PCB (PCB21).
  11. Upgrade the engine firmware to the latest version.
  12. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC490-03

D

Toner sensor (S9) M error
The sensor output value is 0.1 V or smaller, or 3.2 V or larger during a certain time.
  • The toner cartridge is not properly installed.
  • The toner supply opening of the toner cartridge cannot be opened by operating the lever.
  • The drive gear or the coupling do not properly rotate or the excessive load is applied to them.
  • The toner supply opening on the ITB unit is not opened even when installing toner cartridge M.
  • Toner is clogged at the toner supply path in the ITB unit.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The gear or spiral does not rotate in the development unit, or toner sensor (S9) M is faulty.
  • Toner motor (M11) M is not properly attached, or it is faulty.
  • The drum relay PCB (PCB22) is faulty.
  • The engine relay PCB (PCB21) is faulty.
  • The firmware is not the latest version.
  • The main/engine PCB (PCB1) is faulty.
  1. Reinstall toner cartridge M.
  2. Replace toner cartridge M.
  3. Clean the drive gear and the coupling and apply the grease to them.
  4. Correct the toner supply opening at the upper part of the ITB unit so that it is opened by the lever operation.
  5. Clean the inside of the ITB unit. If not resolved, replace it.
  6. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Development unit M - drum drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
    • Toner motor (M11) M - engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  7. Replace development unit M.
  8. Reattach toner motor (M11) M. If it is not repaired, replace it.
  9. Replace the drum relay PCB (PCB22).
  10. Replace the engine relay PCB (PCB21).
  11. Upgrade the engine firmware to the latest version.
  12. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC490-04

D

Toner sensor (S9) Y error
The sensor output value is 0.1 V or smaller, or 3.2 V or larger during a certain time.
  • The toner cartridge is not properly installed.
  • The toner supply opening of the toner cartridge cannot be opened by operating the lever.
  • The drive gear or the coupling do not properly rotate or the excessive load is applied to them.
  • The toner supply opening on the ITB unit is not opened even when installing toner cartridge Y.
  • Toner is clogged at the toner supply path in the ITB unit.
  • The connector or FFC is not connected properly. Or, the wire or FFC is faulty.
  • The gear or spiral does not rotate in the development unit, or toner sensor (S9) Y is faulty.
  • Toner motor (M11) Y is not properly attached, or it is faulty.
  • The drum relay PCB (PCB22) is faulty.
  • The engine relay PCB (PCB21) is faulty.
  • The firmware is not the latest version.
  • The main/engine PCB (PCB1) is faulty.
  1. Reinstall toner cartridge Y.
  2. Replace toner cartridge Y.
  3. Clean the drive gear and the coupling and apply the grease to them.
  4. Correct the toner supply opening at the upper part of the ITB unit so that it is opened by the lever operation.
  5. Clean the inside of the ITB unit. If not resolved, replace it.
  6. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC.
    • Development unit Y - drum drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
    • Toner motor (M11) Y - engine relay PCB (PCB21)
    • Engine relay PCB (PCB21) - main/engine PCB (PCB1)
  7. Replace development unit Y.
  8. Reattach toner motor (M11) Y. If it is not repaired, replace it.
  9. Replace the drum relay PCB (PCB22).
  10. Replace the engine relay PCB (PCB21).
  11. Upgrade the engine firmware to the latest version.
  12. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC491-02

D

Drum unit EEPROM error (Black)
  1. No response from the device is detected for 5ms or more 5 times continuously when reading / writing the data.
  2. The reading data of 2 points mismatches 8 times continuously.
  3. The reading data and the writing data mismatch 8 times continuously.
  • The EEPROM data in drum unit K is faulty.
  • The connector is not properly connected or the wire is faulty.
  • The EEPROM in drum unit K is faulty.
  • The firmware is not the latest version.
  • The drum relay PCB (PCB22) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Turn off the power switch and pull out the power plug. After passing 5 seconds, reinsert the power plug and turn on the power switch.
  2. Reinsert drum unit K into the main unit all the way to reconnect the connector. Also, if the wire is faulty, replace it.
    • Drum unit K - drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
  3. Replace drum unit K.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the drum relay PCB (PCB22).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC491-03

D

Drum unit EEPROM error (Cyan)
  1. No response from the device is detected for 5ms or more 5 times continuously when reading / writing the data.
  2. The reading data of 2 points mismatches 8 times continuously.
  3. The reading data and the writing data mismatch 8 times continuously.
  • The EEPROM data in drum unit C is faulty.
  • The connector is not properly connected or the wire is faulty.
  • The EEPROM in drum unit C is faulty.
  • The firmware is not the latest version.
  • The drum relay PCB (PCB22) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Turn off the power switch and pull out the power plug. After passing 5 seconds, reinsert the power plug and turn on the power switch.
  2. Reinsert drum unit C into the main unit all the way to reconnect the connector. Also, if the wire is faulty, replace it.
    • Drum unit C - drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
  3. Replace drum unit C.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the drum relay PCB (PCB22).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC491-04

D

Drum unit EEPROM error (Magenta)
  1. No response from the device is detected for 5ms or more 5 times continuously when reading / writing the data.
  2. The reading data of 2 points mismatches 8 times continuously.
  3. The reading data and the writing data mismatch 8 times continuously.
  • The EEPROM data in drum unit M is faulty.
  • The connector is not properly connected or the wire is faulty.
  • The EEPROM in drum unit M is faulty.
  • The firmware is not the latest version.
  • The drum relay PCB (PCB22) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Turn off the power switch and pull out the power plug. After passing 5 seconds, reinsert the power plug and turn on the power switch.
  2. Reinsert drum unit M into the main unit all the way to reconnect the connector. Also, if the wire is faulty, replace it.
    • Drum unit M - drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
  3. Replace drum unit M.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the drum relay PCB (PCB22).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC491-05

D

Drum unit EEPROM error (Yellow)
  1. No response from the device is detected for 5ms or more 5 times continuously when reading / writing the data.
  2. The reading data of 2 points mismatches 8 times continuously.
  3. The reading data and the writing data mismatch 8 times continuously.
  • The EEPROM data in drum unit Y is faulty.
  • The connector is not properly connected or the wire is faulty.
  • The EEPROM in drum unit Y is faulty.
  • The firmware is not the latest version.
  • The drum relay PCB (PCB22) is faulty.
  • The main/engine PCB (PCB1) is faulty.
  1. Turn off the power switch and pull out the power plug. After passing 5 seconds, reinsert the power plug and turn on the power switch.
  2. Reinsert drum unit Y into the main unit all the way to reconnect the connector. Also, if the wire is faulty, replace it.
    • Drum unit Y - drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
  3. Replace drum unit Y.
  4. Upgrade the engine firmware to the latest version.
  5. Replace the drum relay PCB (PCB22).
  6. Replace the main/engine PCB (PCB1).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC492-01

D

Drum unit type mismatch (black)
The main unit and drum unit K is not matched.
The correct drum unit is not installed in the slot for drum unit (K).
Install the correct drum unit.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC492-02

D

Drum unit type mismatch (cyan)
The main unit and drum unit C is not matched.
The correct drum unit is not installed in the slot for drum unit (C).
Install the correct drum unit.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC492-03

D

Drum unit type mismatch (magenta)
The main unit and drum unit M is not matched.
The correct drum unit is not installed in the slot for drum unit (M).
Install the correct drum unit.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC492-04

D

Drum unit type mismatch (yellow)
The main unit and drum unit Y is not matched.
The correct drum unit is not installed in the slot for drum unit (Y).

Install the correct drum unit.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC497-00

C

Developer thermistor error

The sensor input sampling exceeds the reference value. (After detection, controlled at 25 °C / 77.0 °F)

  • The connector is not properly connected or the wire is faulty.
  • Toner sensor K is faulty.
  • The drum relay PCB (PCB22) is faulty.
  • The firmware is not the latest version.
  • The main/engine PCB (PCB1) is faulty.
  1. Reinsert development unit K into the main unit all the way to reconnect the connector. Also, if the wire is faulty, replace it.
    • Development unit K - drum relay PCB (PCB22)
    • Drum relay PCB (PCB22) - main/engine PCB (PCB1)
  2. Replace development unit K.
  3. Replace the drum relay PCB (PCB22).
  4. Upgrade the engine firmware to the latest version.
  5. Replace the main/engine PCB (PCB1).