No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC202-01

D

Polygon motor error 0: ON timeout: Bk, Cy

SC202-03

D

Polygon motor error 1: ON timeout: Ma, Ye

  

Polygon mirror motor cannot rotate correctly.

This SC is detected when the polygon mirror motor starts rotating, or its rotating speed is changed.

  • Polygon mirror motor failure
  • Motor driver error
  • Polygon mirror motor harness is defective, disconnected, or short-circuited
  • BiCU failure (Incorrect polygon motor control signal, damaged Laser ASIC)
  • Defective PSU or power supply part for polygon motor
  • Fuse blown out
  • Incorrect AC voltage
  1. Cycle the power OFF/ON.
  2. Check the harness between LD unit and BiCU.
  3. Check CN300 (a connector with five pins) for the polygon mirror motor from the PSU.
    There is no problem if your multimeter indicates 24±2V.
  4. Replace the LD unit (Polygon mirror motor).
  5. Replace the harness between the LD unit and BiCU.
  6. Replace the BiCU.
  7. Replace the fuse.
  8. Replace the PSU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC203-01

D

Polygon motor error 0: OFF timeout: Bk, Cy

SC203-03

D

Polygon motor error 1: OFF timeout: Ma, Ye

  

Polygon mirror motor cannot stop correctly.

This SC is detected when the polygon mirror motor is deactivated.

  • Polygon mirror motor failure
  • Motor driver error
  • Polygon mirror motor harness is defective, disconnected, or short-circuited
  • BiCU failure (Incorrect polygon motor control signal, damaged Laser ASIC)
  • Defective PSU or power supply part for polygon motor
  • Fuse blown out
  • Incorrect AC voltage
  1. Cycle the power OFF/ON.
  2. Check the harness between LD unit and BiCU.
  3. Check CN300 (a connector with five pins) for the polygon mirror motor from the PSU.
     There is no problem if your multimeter indicates 24±2V.
  4. Replace the LD unit (Polygon mirror motor).
  5. Replace the harness between the LD unit and BiCU.
  6. Replace the BiCU.
  7. Replace the fuse.
  8. Replace the PSU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC204-01

D

Polygon motor error 0: XSCRDY signal error: Bk, Cy

SC204-03

D

Polygon motor error 1: XSCRDY signal error: Ma, Ye

  

Polygon mirror motor cannot rotate correctly.

This SC is detected when the polygon mirror motor is deactivated.

  • Polygon mirror motor failure
  • Motor driver error
  • Polygon mirror motor harness is defective, disconnected, or short-circuited
  • BiCU failure (Incorrect polygon motor control signal, damaged Laser ASIC)
  • Defective PSU or power supply part for polygon motor
  • Fuse blown out
  1. Cycle the power OFF/ON.
  2. Check the harness between LD unit and BiCU.
  3. Check CN300 (a connector with five pins) for the polygon mirror motor from the PSU.
     There is no problem if your multi meter indicates 24±2V.
  4. Replace the LD unit (Polygon mirror motor).
  5. Replace the harness between the LD unit and BiCU.
  6. Replace the BiCU.
  7. Replace the fuse.
  8. Replace the PSU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC220-01

D

Laser synchronizing detection error: start position LD1: Bk/C

SC220-03

D

Laser synchronizing detection error: start position LD1: M/Y

  

Synchronizing detection signal cannot be received.

This SC is detected when:

  • The machine starts up.
  • The machine is copying.
  • Defective LD unit (Synchronizing mechanism or LDB failure)
  • BiCU failure (Damaged laser ASIC)
  • Disconnected LDB harness
  1. Cycle the power off/on.
  2. Check for condensation on the LDB.
  3. Check the harness between LDB (Synchronizing mechanism) and BiCU.
  4. Replace the LD unit.
  5. Replace the BiCU.
  6. Replace the harness between LDB and BiCU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC230-01

D

FGATE ON error: Bk

SC230-02

D

FGATE ON error: Cy

SC230-03

D

FGATE ON error: Ma

SC230-04

D

FGATE ON error: Ye

  

FGATE signal cannot be received even when the laser is ready to emit.

This SC is detected when the machine is copying.

  • Connection error between BiCU and Controller
  • BiCU failure (Damaged laser ASIC)
  1. Cycle the power off/on.
  2. Check the connection between BiCU and Controller.
  3. Replace the BiCU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC231-01

D

FGATE OFF error: Bk

SC231-02

D

FGATE OFF error: Cy

SC231-03

D

FGATE OFF error: Ma

SC231-04

D

FGATE OFF error: Ye

  

FGATE signal is not OFF even when the laser is ready to end.

This SC is detected when the machine is copying.

  • Connection error between BiCU and Controller
  • BiCU failure (Damaged laser ASIC)
  1. Cycle the power off/on.
  2. Check the connection between IPU and Controller.
  3. Replace the BiCU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC240-01

D

LD error: Bk

SC240-02DLD error: Cy

SC240-03

D

LD error: Ma

SC240-04DLD error: Ye
  
  • The LD current is more than the prescribed current during emitting light.
  • LD driver cannot be initialized correctly.
  • Disconnected LDB harness.

This SC is detected when:

  • The machine starts up.
  • The machine is copying.
  • LDB harness connection error
  • Deteriorated LD (LD broken)
  • LDB (LD driver) failure
  • LDB harness failure
  1. Cycle the power off/on.
  2. Check the harness between LDB and IPU.
  3. Replace the LD unit.
  4. Replace the harness between LDB and BiCU.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC272-01

D

LD driver communication error: Bk

SC272-02DLD driver communication error: Cy
SC272-03DLD driver communication error: Ma
SC272-04DLD driver communication error: Ye
  

Power source for LD driver is incorrect.

This SC is detected when:

  • The machine starts up.
  • The machine returns from energy saver mode.
  • Covers are closed.
  • BiCU failure (LD5V Power error)
  • LDB failure (LD drive error)
  • LDB harness failure
  • Interlock switch failure
  1. Cycle the power off/on.
  2. Check the harness between LDB and BiCU.
  3. Replace the BiCU.
  4. Replace the LD unit.
  5. Replace the harness between LDB and BiCU.
  6. Replace the interlock switch.

No.

Type

Details (Symptom, Possible Cause, Troubleshooting Procedures)

SC285-00

C

MUSIC error

The results of MUSIC pattern reading failed 4 times.

The ID sensor cannot detect the MUSIC pattern

Color registration error is larger than the specified value

Refer to "When SC285-00 (MUSIC error) Is Displayed"