Fixing Kyocera TASKalfa 300i Printer Error Codes in details

Fixing Kyocera TASKalfa 300i Printer Error Codes in details

– Printer model: Kyocera TASKalfa 300i
– Fix Error codes on Kyocera TASKalfa 300i model and its description:

• Code: C0030
• Description: Fax control PWB system problem
  Processing with the fax software was disabled due to a hardware or software problem.
• Causes: Defective fax control PWB.
• Remedy: Replace the fax control PWB and verify the operation.

• Code: C0060
• Description: Main PWB type mismatch error
• Causes: Defective PWB.
• Remedy: Run maintenance item U935 to contact the Service Administrative Division.

• Code: C0070
• Description: Abnormal detection of fax control PWB incompatibility
  In the initial communication with the fax control PWB, any normal communication command is not transmitted.
• Causes: Defective fax software.
  Defective fax control PWB.
• Remedy: Defective fax software. Install the fax software.
  Defective fax control PWB. Replace the fax control PWB and verify the operation.

• Code: C0100
• Description: Backup memory (EEPROM) device problem (Main PWB)
  Reading from or writing to EEPROM cannot be performed.
• Causes: Defective main PWB.
  Device damage of EEPROM.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: C0120
• Description: MAC address data error
  For data in which the MAC address is invalid.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0150
• Description: Backup memory (EEPROM) device problem (Engine PWB)
  Reading from or writing to EEPROM cannot be performed.
• Causes: Defective engine PWB.
  Device damage of EEPROM.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: C0160
• Description: Backup memory (EEPROM) data problem (Engine PWB)
  Reading data from EEPROM is abnormal. Read and write data does not match 5 times continuously.
• Causes: Data damage of EEPROM.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division.

• Code: C0170
• Description: Copy counts problem
  A checksum error is detected in the main and engine backup memories for the copy counters.
• Causes: Data damage of EEPROM.
  Defective PWB.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division.
  Defective PWB. Replace the main PWB or engine PWB and check for correct operation.

• Code: C0180
• Description: Machine number mismatch error
  Machine number of main PWB and engine PWB does not match.
• Causes: Data damage of EEPROM.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division.

• Code: C0320
• Description: Power CPU communication problem
  The engine PWB and the power CPU are unable to communicate with each other.
• Causes: Defective engine PWB.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C0420
• Description: Optional paper feeder communication problem
  The engine PWB and the paper feeder are unable to communicate with each other.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the paper feeder main PWB, and the continuity across the connector terminals. Repair or replace if necessary
  Defective PWB. Replace the engine PWB or paper feeder main PWB and check for correct operation.

• Code: C0620
• Description: FAX image DIMM problem
  DIMM is not installed correctly. DIMM cannot be accessed.
• Causes: DIMM installed incorrectly.
  Defective main PWB.
• Remedy: DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly.
  Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0630
• Description: DMA problem
  DMA transmission of image data does not complete within the specified period of time.
• Causes: Poor contact in the connector terminals.
  Defective main PWB.
• Remedy: Poor contact in the connector terminals. Check the connection the signal cable and the main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0640
• Description: Hard disk drive problem
  The hard disk cannot be accessed.
• Causes: Poor contact in the connector terminals.
  Defective hard disk.
  Defective main PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC49 on the main PWB and the connector on the hard disk. Repair or replace if necessary.
  Defective hard disk. Run U024 (HDD formatting) without turning the power off to initialize the hard disk. Replace the hard disk drive and check for correct operation if the problem is still detected after initialization.
  Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0650
• Description: FAX image DIMM check problem
  Improper DIMM is installed.
• Causes: DIMM installed incorrectly.
  DIMM of another machine is installed.
  Defective main PWB.
• Remedy: DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly.
  DIMM of another machine is installed. Perform maintenance mode U671 (RECOVERY FAX DIMM).
  Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0800
• Description: Image processing problem
  JAM05 is detected twice.
• Causes: Defective main PWB.
• Remedy: Replace the main PWB and check for correct operation.

• Code: C0830
• Description: Fax control PWB flash program area checksum error
  A checksum error occurred with the program of the fax control PWB.
• Causes: Defective fax software.
  Defective fax control PWB.
• Remedy: Defective fax software. Install the fax software.
  Defective fax control PWB. Replace the fax control PWB and verify the operation.

• Code: C0840
• Description: Faults of RTC
  The time is judged to go back based on the comparison of the RTC time and the current time or five years or more have passed.
• Causes: Defective main PWB.
  The battery is disconnected from the main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  The battery is disconnected from the main PWB. Check visually and remedy if necessary.

• Code: C0870
• Description: Fax control PWB to main PWB high capacity data transfer problem
  High-capacity data transfer between the fax control PWB and the scanner MIP PWB was not normally performed even if the data transfer was retried 10 times.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the interface PWB and the connector on the fax control PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the fax control PWB or main PWB and check for correct operation.

• Code: C0920
• Description: Fax file system error
  The backup data is not retained for file system abnormality of flash memory of the fax control PWB.
• Causes: Defective fax control PWB.
• Remedy: Replace the fax control PWB and verify the operation.

• Code: C1010
• Description: Lift motor 1 error
  After cassette 1 is inserted, lift switch 1 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of lift motor 1.
  Defective lift motor 1.
  Poor contact in the connector terminals.
  Defective lift switch 1.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector of lift motor 1 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of lift motor 1. Replace lift motor 1.
  Defective lift motor 1. Check for continuity across the coil. If none, replace lift motor 1.
  Poor contact in the connector terminals. Check the connection of connector of lift switch 1 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective lift switch 1. Check if YC23-B12 on the engine PWB goes low when lift switch 1 is turned off. If not, replace lift switch 1.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C1020
• Description: Lift motor 2 error
  After cassette 2 is inserted, lift switch 2 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of lift motor 2.
  Defective lift motor 2.
  Poor contact in the connector terminals.
  Defective lift switch 2.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector of lift motor 2 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of lift motor 2. Replace lift motor 2.
  Defective lift motor 2. Check for continuity across the coil. If none, replace lift motor 2.
  Poor contact in the connector terminals. Check the connection of connector of lift switch 2 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective lift switch 2. Check if YC23-A5 on the engine PWB goes low when lift switch 2 is turned off. If not, replace lift switch 2.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C1030
• Description: PF lift motor 1 error (optional paper feeder)
  After cassette 3 is inserted, PF lift switch 1 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of PF lift motor 1.
  Defective PF lift motor 1.
  Defective PF lift switch 1.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the PF main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of PF lift motor 1. Replace PF lift motor 1.
  Defective PF lift motor 1. Check for continuity across the coil. If none, replace PF lift motor 1.
  Defective PF lift switch 1. Check if YC1-5 on the PF main PWB goes low when PF lift switch 1 is turned off. If not, replace PF lift switch 1.

• Code: C1040
• Description: PF lift motor 2 error (optional paper feeder)
  After cassette 4 is inserted, PF lift switch 2 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals
  Broken gears or couplings of PF lift motor 2.
  Defective PF lift motor 2.
  Defective PF lift switch 2.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the PF main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of PF lift motor 2. Replace PF lift motor 2.
  Defective PF lift motor 2. Check for continuity across the coil. If none, replace PF lift motor 2.
  Defective PF lift switch 2. Check if YC1-7 on the PF main PWB goes low when PF lift switch 2 is turned off. If not, replace PF lift switch 2.

– Kyocera TASKalfa 300i printer Error Codes and quick guide to troubleshooting:

• Code: C2000
• Description: Main motor problem
  Stable OFF is detected for 1 s continuously after main motor stability.
• Causes: Poor contact in the connector terminals.
  Defective drive transmission system.
  Defective main motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC10 on the engine PWB and the connector on the main motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective drive transmission system. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective main motor. Replace the main motor.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C2200
• Description: Drum motor problem
  Stable OFF is detected for 1 s continuously after drum motor stability.
• Causes: Poor contact in the connector terminals.
  Defective drive transmission system.
  Defective drum motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC10 on the engine PWB and the connector on the drum motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective drive transmission system. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective drum motor. Replace the drum motor.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C2500
• Description: Paper feed motor error
  Stable OFF is detected for 1 s continuously after paper feed motor stability.
• Causes: Poor contact in the connector terminals.
  Defective drive transmission system.
  Defective paper feed motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC10 on the engine PWB and the connector on the paper feed motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective drive transmission system. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective paper feed motor. Replace the paper feed motor.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C2600
• Description: PF paper drive motor error (optional paper feeder)
  The lock signal of the motor is detected above 500 ms.
• Causes: Poor contact in the connector terminals.
  Defective drive transmission system
  Defective PF paper drive motor.
  Defective PWB
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the PF main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective drive transmission system. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective PF paper drive motor. Replace the PF paper drive motor.
  Defective PWB. Replace the PF main PWB or engine PWB and check for correct operation.

• Code: C3100
• Description: Scanner carriage problem
  The home position is not correct when the power is turned on or at the start of copying using the table.
• Causes: Poor contact in the connector terminals.
  Defective home position switch.
  Defective scanner motor.
  The mirror frame, exposure lamp, or scanner wire is defective.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC6 on the scanner PWB and the connector of the home position switch, and the connection of connector YC3 on the scanner PWB and the connector on the scanner motor and the continuity across the connector terminals. Repair or replace if necessary.
  Defective home position switch. Replace the scanner home position switch.
  Defective scanner motor. Replace the scanner motor.
  The mirror frame, exposure lamp, or scanner wire is defective. Check if the mirror flames and exposure lamp are on the rail. And check the scanner wire winds correctly.
  Defective PWB. Replace the scanner PWB or main PWB and check for correct operation.

• Code: C3200
• Description: Exposure lamp problem
  When input value at the time of exposure lamp illumination does not exceed the threshold value between 5 s.
• Causes: Poor contact in the connector terminals.
  Defective exposure lamp.
  Incorrect shading position.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC5 on the scanner PWB and the connector on the inverter PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective exposure lamp. Replace the exposure lamp.
  Incorrect shading position. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the home position switch.
  Defective PWB. Replace the scanner PWB or inverter PWB and check for correct operation.

• Code: C3300
• Description: Optical system (AGC) problem
  After AGC, correct input is not obtained at CCD.
• Causes: Poor contact in the connector terminals.
  Defective exposure lamp.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC26 on the main PWB and the connector on the CCD PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective exposure lamp. Replace the exposure lamp.
  Defective PWB. Replace the main PWB or CCD PWB and check for correct operation.

• Code: C3500
• Description: Communication error between scanner and SHD An error code is detected.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC26 on the main PWB and the connector on the CCD PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the main PWB or CCD PWB and check for correct operation.

• Code: C3900
• Description: Backup memory read/write problem (scanner PWB)
  Read and write data does not match.
• Causes: Defective backup RAM or PWB.
• Remedy: Replace the scanner PWB and check for correct operation.

• Code: C3910
• Description: Backup memory data problem (scanner PWB)
  Data in the specified area of the backup memory does not match the specified values.
• Causes: Defective backup RAM or PWB.
• Remedy: Replace the scanner PWB and check for correct operation.

• Code: C4000
• Description: Polygon motor synchronization problem
  The polygon motor does not reach the stable speed within 20 s of the START signal turning on.
• Causes: Poor contact in the connector terminals.
  Defective polygon motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC36 on the engine PWB and laser scanner unit, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective polygon motor. Replace the laser scanner unit.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C4010
• Description: Polygon motor steady-state problem
  Stable OFF is detected for 5 s continuously after polygon motor stability.
• Causes: Poor contact in the connector terminals.
  Defective polygon motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC36 on the engine PWB and laser scanner unit, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective polygon motor. Replace the laser scanner unit.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C4200
• Description: BD initialization problem
  ASIC detects a BD error A for 4 s after the polygon motor rotation has been stabilized.
• Causes: Poor contact in the connector terminals.
  Defective polygon motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC36 on the engine PWB and laser scanner unit, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective polygon motor. Replace the laser scanner unit.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C6000
• Description: Fuser heater break
  Fuser thermistor 1 detected less than 40°C/104°F for 14 s during warm-up and ready in. Fuser thermistor 2 detected less than 70°C/158°F for 14 s during warm-up and ready in.
• Causes: Defective fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 1 or 2.
  Defective fuser thermostat.
  Defective PWB.
• Remedy: Defective fuser heater 1 or 2. Replace the fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 1 or 2. Check the mounting state of the fuser thermistor 1 or 2. If any problem is found, repair it.
  Defective fuser thermostat. Replace the fuser thermostat.
  Defective PWB. Replace the power source PWB or engine PWB and check for correct operation.

• Code: C6020
• Description: Abnormally high fuser thermistor center temperature
  Fuser thermistor 2 is detected 230°C/ 446°F or more for 40 ms.
• Causes: Installation defectiveness on fuser thermistor 2.
  Defective fuser thermistor 2.
  Defective engine PWB.
• Remedy: Installation defectiveness on fuser thermistor 2. Check the mounting state of the fuser thermistor 2. If any problem is found, repair it.
  Defective fuser thermistor 2. Replace the fuser thermistor 2.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C6050
• Description: Abnormally low fuser thermistor center temperature
  Fuser thermistor 1 is detected 100°C/ 212°F less then 1 s continuously during copying.
• Causes: Defective fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 2.
  Defective PWB.
• Remedy: Defective fuser heater 1 or 2. Replace the fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 2. Check the mounting state of the fuser thermistor 2. If any problem is found, repair it.
  Defective PWB. Replace the power source PWB or engine PWB and check for correct operation.

• Code: C6120
• Description: Abnormally high fuser thermistor edge temperature
  Fuser thermistor 1 is detected 240°C/ 464°F or more for 40 ms.
• Causes: Installation defectiveness on fuser thermistor 1.
  Defective fuser thermistor 1.
  Defective engine PWB.
• Remedy: Installation defectiveness on fuser thermistor 1. Check the mounting state of the fuser thermistor 1. If any problem is found, repair it.
  Defective fuser thermistor 1. Replace the fuser thermistor 1.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C6150
• Description: Abnormally low fuser thermistor edge temperature
  Fuser thermistor 1 is detected 80°C/ 176°F less than 1 s continuously during copying.
• Causes: Defective fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 1.
  Defective PWB.
• Remedy: Defective fuser heater 1 or 2. Replace the fuser heater 1 or 2.
  Installation defectiveness on fuser thermistor 1. Check the mounting state of the fuser thermistor 1. If any problem is found, repair it.
  Defective PWB. Replace the power source PWB or engine PWB and check for correct operation.

• Code: C6400
• Description: Zero-cross signal error
  While fuser heater ON/OFF control is performed, the zero-cross signal is not input within 3 s.
• Causes: Defective PWB
• Remedy: Replace the power source PWB or engine PWB and check for correct operation.

• Code: C6420
• Description: Fuser unit fuse cut problem
  The fuse cannot be cut, When replacing the fuser unit, the fuse cannot be cut in 3 s after the fuse cut signal is turned on.
• Causes: Poor contact in the connector terminals.
  Fuser unit connector inserted incorrectly.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC1 on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Fuser unit connector inserted incorrectly. Reinsert the fuser unit connector if necessary.

• Code: C7000
• Description: Toner motor problem
  A motor over-current signal is detected continuously for 1 s or longer
• Causes: Poor contact in the connector terminals.
  Broken the gear.
  Defective toner feed motor.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC1 on the engine PWB and the connector on the toner feed motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken the gear. Check visually and replace the gear if necessary.
  Defective toner feed motor. Run maintenance item U135 and check if the toner feed motor operates. If not, replace the toner feed motor.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C7200
• Description: Broken inner thermistor wire
  An abnormal value is detected in the input data to inner thermistor.
• Causes: Poor contact in the connector terminals.
  Defective temperature sensor.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC32 on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective temperature sensor. Replace the temperature sensor.

• Code: C7300
• Description: Toner hopper problem
  Toner emptiness is detected for 300 s, three times during the toner replenishment.
• Causes: Poor contact in the connector terminals.
  Defective toner sensor.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC1 on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective toner sensor. Replace the developing unit.

• Code: C7400
• Description: Developing unit connector insertion problem
  Absence of the developing unit is detected.
• Causes: Developing unit connector inserted incorrectly.
  Defective developing unit connector.
• Remedy: Developing unit connector inserted incorrectly. Reinsert the developing unit connector if necessary.
  Defective developing unit connector. Replace the developing unit.

• Code: C7410
• Description: Drum unit connector insertion problem Absence of the drum unit is detected.
• Causes: Drum unit connector inserted incorrectly.
  Defective drum unit connector.
• Remedy: Drum unit connector inserted incorrectly. Reinsert the drum unit connector if necessary.
  Defective drum unit connector. Replace the drum unit.

• Code: C7800
• Description: Broken external thermistor wire
  The thermistor output value is 4.5 V or more.
• Causes: Poor contact in the connector terminals.
  Defective humidity sensor
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC10 on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective humidity sensor. Replace the humidity sensor.

• Code: C7900
• Description: Drum EEPROM error
  Reading from or writing to EEPROM cannot be performed.
• Causes: Poor contact in the connector terminals.
  Defective drum unit.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective drum unit. Replace the drum unit.

• Code: C7910
• Description: Developing unit EEPROM error
  Reading from or writing to EEPROM cannot be performed.
• Causes: Poor contact in the connector terminals
  Defective developing unit.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the engine PWB and the continuity across the connector terminals. Repair or replace if necessary.
  Defective developing unit. Replace the developing unit.

• Code: C8030
• Description: Tray upper limit detection problem (optional document finisher)
  When the tray elevation motor raises a tray, the ON status of the tray upper limit sensor is detected.
• Causes: The tray upper limit sensor, paper surface sensor 1/2 connector makes poor contact.
  Defective tray upper limit sensor, paper surface sensor 1/2.
  Defective finisher main PWB.
• Remedy: The tray upper limit sensor, paper surface sensor 1/2 connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective tray upper limit sensor, paper surface sensor 1/2. Replace the sensor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8040
• Description: Belt problem (optional document finisher)
  The belt sensor does not turn on/off within specified time of the belt solenoid turning on.
• Causes: The belt sensor, belt solenoid connector makes poor contact.
  Defective belt sensor.
  Defective belt solenoid.
  Defective finisher main PWB.
• Remedy: The belt sensor, belt solenoid connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective belt sensor. Replace the belt sensor.
  Defective belt solenoid. Replace the belt solenoid.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8140
• Description: Tray elevation motor problem (optional document finisher)
  The tray low limit sensor or paper surface sensor 1/2 cannot be detected to be on within 10 s since the tray elevation motor is activated.
• Causes: The tray elevation motor connector makes poor contact.
  The tray elevation motor malfunctions.
  The tray lower limit sensor, paper surface sensor 1/2 connector makes poor contact.
  Defective tray lower limit sensor, paper surface sensor 1/2.
  Defective finisher main PWB.
• Remedy: The tray elevation motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  The tray elevation motor malfunctions. Replace the tray elevation motor.
  The tray lower limit sensor, paper surface sensor 1/2 connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective tray lower limit sensor, paper surface sensor 1/2. Replace the sensor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8170
• Description: Finisher front side registration motor problem (optional built-in finisher)
  When the front-side registration home-position sensor is turned on during initialization, the sensor did not turn on while it has moved by 106 pulses. When the front-side registration home-position sensor is turned off during initialization, the sensor did not turn on in 3 s.
• Causes: The front side registration motor connector makes poor contact.
  Defective front side registration motor.
  The front side registration home position sensor connector makes poor contact.
  Defective front side registration home position sensor.
  Defective finisher control PWB.
• Remedy: The front side registration motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective front side registration motor. Replace front side registration motor.
  The front side registration home position sensor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective front side registration home position sensor. Replace the front side registration home position sensor.
  Defective finisher control PWB. Replace the finisher control PWB and check for correct operation.

• Code: C8180
• Description: Finisher rear side registration motor problem (optional built-in finisher)
  When the rear-side registration home-position sensor is turned on during initialization, the sensor did not turn on while it has moved by 106 pulses. When the rear-side registration home-position sensor is turned off during initialization, the sensor did not turn on in 3 s.
• Causes: The rear side registration motor connector makes poor contact.
  Defective rear side registration motor.
  The rear side registration home position sensor connector makes poor contact.
  Defective rear side registration home position sensor.
  Defective finisher control PWB.
• Remedy: The rear side registration motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective rear side registration motor. Replace rear side registration motor.
  The rear side registration home position sensor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective rear side registration home position sensor. Replace the rear side registration home position sensor.
  Defective finisher control PWB. Replace the finisher control PWB and check for correct operation.

• Code: C8190
• Description: Finisher trailing edge registration motor problem (optional built-in finisher)
  When the trailing edge registration home-position sensor is turned on during initialization, the sensor did not turn on while it has moved by 106 pulses. When the trailing edge registration home-position sensor is turned off during initialization, the sensor did not turn on in 3 s.
• Causes: The trailing edge registration motor connector makes poor contact.
  Defective trailing edge registration motor
  The trailing edge registration home position sensor connector makes poor contact.
  Defective trailing edge registration home position sensor.
  Defective finisher control PWB.
• Remedy: The trailing edge registration motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective trailing edge registration motor. Replace trailing edge registration motor.
  The trailing edge registration home position sensor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective trailing edge registration home position sensor. Replace the trailing edge registration home position sensor.
  Defective finisher control PWB. Replace the finisher control PWB and check for correct operation.

• Code: C8210
• Description: Stapler problem (optional document finisher)
  Jam 82 is indicated.
  Finisher stapler problem (optional built-in finisher)
  The stapler home position sensor does not change state from nondetection to detection within 200 ms of the start of stapler motor counterclockwise (forward) rotation. During initialization, the stapler home position sensor does not change state from non-detection to detection within 600 ms of the start of stapler motor clockwise (reverse) rotation.
• Causes: The stapler connector makes poor contact.
  The stapler is blocked with a staple.
  The stapler is broken.
  Defective finisher main PWB.
  The stapler connector makes poor contact.
  The stapler is blocked with a staple.
  The stapler is broken.
  Defective finisher control PWB.
• Remedy: The stapler connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  The stapler is blocked with a staple. Remove the stapler cartridge, and check the cartridge and the stapling section of the stapler.
  The stapler is broken. Replace the stapler and check for correct operation.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.
  The stapler connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  The stapler is blocked with a staple. Remove the stapler cartridge, and check the cartridge and the stapling section of the stapler. The stapler is broken. Replace the front stapler and check for correct operation.
  Defective finisher control PWB. Replace the finisher control PWB and check for correct operation.

• Code: C8320
• Description: Adjustment motor 2 problem (optional document finisher)
  The adjustment sensor 2 does not turn on/off within specified time of the adjustment motor 2 turning on.
• Causes:
  The adjustment sensor 2, adjustment motor 2 connector makes poor contact.
  Defective adjustment sensor 2.
  Defective adjustment motor 2.
  Defective finisher main PWB.
• Remedy: The adjustment sensor 2, adjustment motor 2 connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective adjustment sensor 2. Replace the adjustment sensor 2.
  Defective adjustment motor 2. Replace the adjustment motor 2.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8330
• Description: Adjustment motor 1 problem (optional document finisher)
  The adjustment sensor 1 does not turn on/off within specified time of the adjustment motor 1 turning on.
• Causes: The adjustment sensor 1, adjustment motor 1 connector makes poor contact.
  Defective adjustment sensor 1
  Defective adjustment motor 1.
  Defective finisher main PWB.
• Remedy: The adjustment sensor 1, adjustment motor 1 connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective adjustment sensor 1. Replace the adjustment sensor 1.
  Defective adjustment motor 1. Replace the adjustment motor 1.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8350
• Description: Roller motor problem (optional document finisher)
  The roller sensor does not turn on/off within specified time of the roller motor turning on.
• Causes: The roller sensor, roller motor connector makes poor contact.
  Defective roller sensor.
  Defective roller motor.
  Defective finisher main PWB.
• Remedy: The roller sensor, roller motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective roller sensor. Replace the roller sensor.
  Defective roller motor. Replace the roller motor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8360
• Description: Slide motor problem (optional document finisher)
  The slide sensor does not turn on/off within specified time of the slide motor turning on.
• Causes: The slide sensor, slide motor connector makes poor contact.
  Defective slide sensor.
  Defective slide motor
  Defective finisher main PWB
• Remedy: The slide sensor, slide motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective slide sensor. Replace the slide sensor.
  Defective slide motor. Replace the slide motor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8440
• Description: Sensor adjusting problem (optional document finisher)
  The sensor cannot be adjusted within the specified range.
• Causes: The paper entry sensor connector makes poor contact.
  Defective paper entry sensor.
  The optical path of the paper entry sensor is blocked by foreign matter.
  Defective finisher main PWB.
• Remedy: The paper entry sensor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective paper entry sensor. Replace the paper entry sensor and check for correct operation.
  The optical path of the paper entry sensor is blocked by foreign matter. Remove the foreign matter.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8460
• Description: EEPROM problem (optional document finisher)
  Reading from or writing to EEPROM cannot be performed.
• Causes: Defective EEPROM or finisher main PWB.
• Remedy: Replace the finisher main PWB and check for correct operation.

• Code: C8800
• Description: Document finisher communication error (optional 3000-sheet document finisher)
  A communication error from document finisher is detected 10 times in succession
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the engine PWB and the connector on the finisher main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the finisher main PWB or engine PWB and check for correct operation.

• Code: C9000
• Description: Optional DP communication problem
  A communication error is detected.
• Causes: Poor contact in the connector terminals.
  Defective DP main PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC7 and YC8 on the scanner PWB and the connector of the DP, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective DP main PWB. Replace the DP main PWB and check for correct operation.

• Code: C9060
• Description: DP EEPROM error (optional DP)
  Read and write data does not match. Data in the specified area of the backup memory does not match the specified values. Data in the specified area of the backup memory does not match the specified values.
• Causes: Defective DP main PWB.
  Device damage of EEPROM.
• Remedy: Defective DP main PWB. Replace the DP main PWB and check for correct operation.
  Device damage of EEPROM. Contact the Service Administrative Division.

• Code: C9500, C9510, C9520
• Description: Contact the Service Administrative Division.
• Causes:
• Remedy: Contact the Service Administrative Division.

• Code: F000
• Description: Operation panel PWB communication error
• Causes: Defective main PWB.
  Defective operation panel PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  Defective operation panel PWB. Replace the operation panel PWB and check for correct operation.

• Code: F040
• Description: Engine PWB communication error
• Causes: Defective main PWB.
  Defective engine PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: F041
• Description: Scanner PWB communication error
• Causes: Defective main PWB.
  Defective scanner PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  Defective scanner PWB. Replace the scanner PWB and check for correct operation.

• Code: F050
• Description: Engine ROM checksum error
• Causes: Defective engine PWB.
• Remedy: Replace the engine PWB and check for correct operation.

• Code: F090
• Description: Fax control PWB communication error
• Causes: Defective main PWB
• Remedy: Replace the main PWB and check for correct operation.

• Code: F278
• Description: Power supply in drive system error
• Causes: Main power switch was turned off without using the power key, or a power failure has occurred.
• Remedy: Turn on power. (To switch off power, first press the power key until the main power indicator goes off, then turn the main power switch off.)

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