SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC440-00

SC440-01

SC440-02

 

D

Charge bias output error (only for MF models)

TM (ID) sensors detected a black solid image on the belt between sheets when printing a fax document.

The machine stops printing when this SC is detected.

  • SC400-00: detected by both left and right TM (ID) sensors.
  • SC400-01: detected by the right TM (ID) sensor.
  • SC400-02: detected by the left TM (ID) sensor.
  
  • TM(ID) sensor is defective, or dirty.
  • Charge roller is dirty.
  • Low power of charge bias (HVPS is defective).

Remove the jammed paper and check the printed image.

If a vertical line, or a black solid is printed, go to “Caused by PCDU”. If not, go to “Caused by TM (ID) sensor”.

Caused by PCDU

  1. Reset the PCDU (K).
  2. Replace the PCDU (K).

Caused by TM (ID) sensor

  1. Reconnect the harness of the TM(ID) sensor.
  2. Clean the shutter of the TM(ID) sensor.
    • Clean with a cleaning cloth. Do not clean with alcohol.
    • After cleaning, open and close the front cover.

  3. Correct the belt if corrugation/belt skew has occurred.

  4. Replace the TM (ID) sensor.
    • After replacing, enter SP mode and input the correction value written on the paper attached to the new TM (ID) sensor.
    • Left TM (ID) sensor: SP3-333-001 to 006
    • Right TM (ID) sensor: SP3-334-001 to 006

SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC442-01

SC442-02

SC442-03

D

Intermediate transfer contact Sensor error (01: Home position error, 02: Contact error, 03: Non-contact error)

- Home position error: SC442-01

If the home position is not set within the T4 time after turning ON the feed motor and feed clutch, an error results.

- Contact error: SC442-02

If the contact state is not set within the T3 time after turning ON the feed motor and feed clutch, an error results.

- Non-contact error: SC442-03

If the non-contact state is not set within the T3 time after turning ON the feed motor and feed clutch, an error results.

[Error time T3]

SP value: 100 to 25500 ms

Initial value: 3000 ms

Note: Contact/non-contact error judgment

[Error time T4]

SP value: 100 to 25500 ms

Initial value: 3000 ms

Note: Home position error judgment

  
  • High motor load
  • Failed motor
  • Disconnected connector
  • Broken harness wire
  • PSU: +24 V fuse blown
  • Failed interlock mechanism
  • Failed Engine Board

1. Connect and disconnect the Image Transfer Unit

2. Replace the Image Transfer Unit

3. Replace the Engine Board

4. Replace the ITB (Image Transfer Belt) Contact Clutch

5. Replace the Paper Feed Motor

SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC490-00

D

Charging/developing: Output error

The "HVP_ERR1: Output error Sensor signal" is monitored at 20 ms intervals. If 0 (error) is detected ten times in succession (200 ms), the following causes are suspected:

  • Failed PCDU
  • Failed High Voltage Power Supply (Separation)
  • Damaged HVP connection harness
  • Replace the PCDU.
  • Replace the High Voltage Power Supply.
  • Replace the harness.

SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC491-01

D

Primary/secondary transfer: Output error

The "HVP_ERR2: Output error Sensor signal" is monitored at 20 ms intervals. If 0 (error) is detected fifty times in succession (1000 ms) (during bias output), the following causes are suspected:

  • Image Transfer Unit error
  • Transfer Roller error
  • Damaged HVP connection harness
  • Noise generated by poor contact of the power supply terminals of the Development Roller
  • Replace the Image Transfer Unit.
  • Replace the Transfer Roller
  • Replace the High Voltage Power Supply.
  • Replace the harness.
  • Replace the PCDU.

SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC491-02

D

Disconnected connector: High voltage output error

The "HVP_ERR2: Output error Sensor signal" is monitored at 20 ms intervals. If 0 (error) is detected ten times in succession (200 ms) (during non-bias output), the following causes are suspected:

  • HVP connection harness disconnected
  • Damaged HVP connection harness
  • Check the HVP connection harness
  • Replace the HVP connection harness.

SC NO.

Pattern

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC498-00

C

Temperature/humidity sensor error

  • Temperature Sensor output error: Out of range between 076 V and 2.90 V
  • Humidity Sensor output error: 2.4 V or more

- Unmounted Sensor (Disconnected connector or broken wire)

- Failed Sensor

  • Turn the power OFF and then ON.
  • Check that the connector is set.
  • Replace the sensor.
  • Replace the connector.