• Code: C3B02
• Description: IH malfunction (CPU) • A failure in communication with the fusing CPU continues for a predetermined period of time.
• Causes: Fusing unit IH coil unit IH power supply (IHPU) Relay drive board (REDB) Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, degaussing coil unit, IHPU, PRCB and REDB for proper connection and correct or change as necessary. 4 Change fusing unit 5 Change IH coil unit 6 Change IHPU 7 Change PRCB 8 Change REDB

• Code: C3B03
• Description: IH malfunction (monitor) • Though the IH heater is ON, this status cannot be detected mechanically. (IH heater operation failure) • Though the IH heater is OFF, mechanically, the ON status is detected. (Malfunction of IH heater operation)
• Causes: Fusing unit IH coil unit IH power supply (IHPU) Relay drive board (REDB) Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, degaussing coil unit, IHPU, PRCB and REDB for proper connection and correct or change as necessary. 4 Change fusing unit 5 Change IH coil unit 6 Change IHPU 7 Change PRCB 8 Change REDB

• Code: C3B05
• Description: IH temperature sensor defect • While the IH heater was on, IH temperature sensor was disconnected for more than the predetermined period of time. • While the IH heater was on, short circuit on IH temperature sensor continued for more than the predetermined period of time. • While the IH heater was on, temperature change occurred within the predetermined period of time with over the predetermined range, and they continued for more than the predetermined period of time. • While the IH heater was on, temperature around the heat radiator stayed high for over 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: C3B06
• Description: IH surge error • While the IH heater was on, IH stopped due to input voltage which exceeded that of surge detection voltage, and the surge detection voltage continued 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: C3B07
• Description: IH input power error • While the IH heater was on, input power stayed at the high voltage power detection value or over for more than the predetermined period of time. • While the IH heater was on, input power was at the low power detection value or under for more than the predetermined period of time. • 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 power was below the low voltage detection value or under for more than the predetermined period of time. • While the IH heater was on, inverter power stayed at the upper limit value or over for more than the predetermined period of time. • While the IH heater was on, output voltage halt was detected.
• 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: 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