• Code: C3B08
• Description: IH input voltage error
  • While the IH heater was on, input power was at the high voltage detection value or over for more than the predetermined period of time. • While the IH heater was on, input voltage was at the low power detection value or under for more than the predetermined period of time.
• Causes: IH coil unit IH power supply (IHPU) Relay drive board (REDB) Printer control board (PRCB)
• Remedy: 1 Check the connection of the fusing unit. - - 2 Check the fusing unit, degaussing coil unit, IHPU, PRCB and REDB for proper connection and correct or change as necessary. - - 3 Change degaussing coil unit - - 4 Change IHPU - - 5 Change PRCB - - 6 Change REDB

• Code: C4101
• Description: Polygon motor rotation trouble
  • The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor. • Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
• Causes: PH unit PH relay board (REYB/PH) Printer control board (PRCB)
• Remedy: 1 Check the connector for proper connection and correct as necessary. - - 2 Change PH unit - - 3 REYB/PH ICP2 conduction check - - 4 Change REYB/PH - - 5 Change PRCB

• Code: C4301
• Description: PH cooling fan motor failure to turn
  • The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Causes: PH cooling fan motor (FM14) PH relay board (REYB/PH) Printer control board (PRCB)
• Remedy: 1 Check the FM14 connector for proper connection and correct as necessary. - - 2 Check the fan for possible overload and correct as necessary. - - 3 FM14 operation check REYB/PH CN4-1 (REM) REYB/PH CN4-3 (LOCK) A to B-7 4 Change FM14 - - 5 REYB/PH ICP1 conduction check - - 6 Change REYB/PH - - 7 Change DCPU

• Code: C4501
• Description: Laser malfunction
  • SOS signal is not detected even after the lapse of a given period of time after staring the laser output. • SOS signal is not detected for a given period of time during printing or IDC sensor adjustment.
• Causes: PH unit PH relay board (REYB/PH) Printer control board (PRCB)
• Remedy: 1 Check the connector for proper connection and correct as necessary. - - 2 Change PH unit - - 3 REYB/PH ICP6 conduction check - - 4 Change REYB/PH - - 5 PRCB ICP17 conduction check - - 6 Change PRCB

• Code: C5104
• Description: Transfer belt motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Causes: Transfer belt motor (M1) Printer control board (PRCB)
• Remedy: 1 Check the M1 connector for proper connection and correct as necessary. - - 2 Check M1 for proper drive coupling and correct as necessary. - - 3 Check the PRCB connector for proper connection and correct as necessary. - - 4 M1 operation check PRCB CN35-3 (REM) PRCB CN35-6 (LOCK) K-3 5 Change M1 - - 6 PRCB ICP15 conduction check - - 7 Change PRCB

• Code: C5105
• Description: Transfer belt motor’s turning at abnormal timing
  • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Causes: Transfer belt motor (M1) Printer control board (PRCB)
• Remedy: 1 Check the M1 connector for proper connection and correct as necessary. - - 2 Check M1 for proper drive coupling and correct as necessary. - - 3 Check the PRCB connector for proper connection and correct as necessary. - - 4 M1 operation check PRCB CN35-3 (REM) PRCB CN35-6 (LOCK) K-3 5 Change M1 - - 6 PRCB ICP15 conduction check - - 7 Change PRCB

• Code: C5304
• Description: IH cooling fan motor/1’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Causes: IH cooling fan motor/1 (FM10) Printer control board (PRCB)
• Remedy: 1 Check the FM10 connector for proper connection and correct as necessary. - - 2 Check the fan for possible overload and correct as necessary. - - 3 FM10 operation check PRCB CN8-5 (REM) PRCB CN8-7 (LOCK) C-16 4 Change FM10 - - 5 PRCB ICP10 conduction check - - 6 Change PRCB

• Code: C5306
• Description: IH cooling fan motor/2’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Causes: IH cooling fan motor/2 (FM12) Printer control board (PRCB)
• Remedy: 1 Check the FM12 connector for proper connection and correct as necessary. - - 2 Check the fan for possible overload and correct as necessary. - - 3 FM12 operation check PRCB CN8-8 (REM) PRCB CN8-10 (LOCK) C-15 4 Change FM12 - - 5 PRCB ICP10 conduction check - - 6 Change PRCB