کونیکا مینولتا Konica-Minolta bizhub C7720
C0001 LCT connection failed
C0204 Tray 2 feeder up/down abnormality
C0206 Tray 3 feeder up/down abnormality
C0208 Tray 4 feeder up/down abnormality
C0209 LCT elevator motor malfunction
C0210 LCT ascent motion failure
C0211 Manual feed up/down abnormality
C0212 LCT ejection failure
C0213 LCT shift gate malfunction
C0214 LCT shifting failure
C0215 LCT shift motor malfunction
C0301 Suction fan motor’s failure to turn
• The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the FM10 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM10 operation check copyir.com 4 Change the right door assy copyir.com 5 Change PRCB copyir.com
C1004 FNS communication error
C1182 Shift motor mechanism failure
C11A1 Finishing option exit roller pressure/retraction failure
C11E0 Route switch malfunction
C2151 Secondary transfer roller pressure welding alienation
• During a retraction operation of the 2nd image transfer roller, the 2nd image transfer welding alienation sensor cannot detect the 2nd image transfer roller at its retracted position within a predetermined period of time after the 2nd image transfer retraction motor starts rotating copyir.com
• During a pressure operation of the 2nd image transfer roller, the 2nd image transfer welding alienation sensor cannot detect the 2nd image transfer roller at its pressed position within a predetermined period of time after the 2nd image transfer retraction motor starts rotating copyir.com 1 Check the M5 connector for proper connection and correct as necessary copyir.com 2 Check the connector of M5 for proper drive coupling and correct as necessary copyir.com 3 PS36 I/O check, sensor check copyir.com 4 Change the right door assy copyir.com 5 Change PRCB copyir.com
C2152 Transfer belt pressure welding alienation
• During a retraction operation of the transfer belt, the transfer belt retraction sensor cannot detect the transfer belt at its retracted position within a predetermined period of time after the transfer belt retraction clutch is turned ON copyir.com
• During a pressure operation of the transfer belt, the transfer belt retraction sensor cannot detect the transfer belt at its pressed position within a predetermined period of time after the transfer belt clutch is turned ON copyir.com 1 Check the M5 connector for proper connection and correct as necessary copyir.com 2 PS6 I/O check, sensor check copyir.com 3 CL3 operation check copyir.com 4 M2 operation check copyir.com 5 Change CL3 copyir.com 6 Change M2 copyir.com 7 Change PRCB copyir.com
C2164 PC charge malfunction
• When electrostatic charge output is ON, electrostatic charge leak detection system continues to detect leaks for a predetermined period of time copyir.com 1 Check the imaging unit for proper connection and correct as necessary copyir.com 2 Check the HV connector for proper connection and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 Change IU copyir.com 5 Change HV copyir.com 6 Change PRCB copyir.com
C2253 Color PC motor’s failure to turn
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning copyir.com 1 Check the M3 connector for proper connection and correct as necessary copyir.com 2 Check the M3 connector for proper drive coupling and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 M3 operation check copyir.com 5 Change M2 copyir.com 6 Change PRCB copyir.com
C2254 Color PC motor’s turning at abnormal timing
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the M3 connector for proper connection and correct as necessary copyir.com 2 Check the M3 connector for proper drive coupling and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 M3 operation check copyir.com 5 Change M2 copyir.com 6 Change PRCB copyir.com
C225D Color dev copyir.com unit engagement/ disengagement failure
• The gears remain disengaged after the lapse of a predetermined period of time after the engagement operation is started by the color dev copyir.com unit engaged motor copyir.com
• The gears remain engaged after the lapse of a predetermined period of time after the disengagement operation is started by the color dev copyir.com unit engaged motor copyir.com 1 Check the M4 connector for proper connection and correct as necessary copyir.com 2 Check the M4 connector for proper drive coupling and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 PS19 I/O check, sensor check copyir.com 5 M4 operation check copyir.com 6 Change M4 copyir.com 7 Change PRCB copyir.com
C2451 Release new transfer belt unit
• A new installation is not detected when a new transfer cleaner unit (image transfer belt unit) is installed copyir.com 1 Reinstall unit copyir.com 2 Check there is a short circuit in the fuse of the transfer belt unit copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 Change PRCB copyir.com
C2551 Abnormally low toner density detected cyan TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 M6 operation check (At this time, IU must be non-installation copyir.com) copyir.com 4 M7 operation check (At this time, IU must be non-installation copyir.com) copyir.com 5 Change imaging unit copyir.com 6 Change PRCB copyir.com
C2552 Abnormally high toner density detected cyan TCR sensor
• TC ratio in the developing machine, which is determined by Toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively copyir.com
• When the connector of the TCR sensor is disconnected copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 Change imaging unit copyir.com 4 Change PRCB copyir.com
C2553 Abnormally low toner density detected magenta TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 M6 operation check (At this time, IU must be non-installation copyir.com) copyir.com 4 M7 operation check (At this time, IU must be non-installation copyir.com) copyir.com 5 Change imaging unit copyir.com 6 Change PRCB copyir.com
C2554 Abnormally high toner density detected magenta TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively copyir.com • When the connector of the TCR sensor is disconnected copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 Change imaging unit copyir.com 4 Change PRCB copyir.com
C2555 Abnormally low toner density detected yellow TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 M6 operation check (At this time, IU must be non-installation copyir.com) copyir.com 4 M7 operation check (At this time, IU must be non-installation copyir.com) copyir.com 5 Change imaging unit copyir.com 6 Change PRCB copyir.com
C2556 Abnormally high toner density detected yellow TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively copyir.com
• When the connector of the TCR sensor is disconnected copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 Change imaging unit copyir.com 4 Change PRCB copyir.com
C2557 Abnormally low toner density detected black TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively copyir.com 1 M7 operation check (At this time, IU must be non-installation copyir.com) copyir.com 2 Reinstall imaging unit copyir.com 3 Reinstall toner cartridge copyir.com 4 Change imaging unit /K copyir.com 5 Change PRCB copyir.com
C2558 Abnormally high toner density detected black TCR sensor
• TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively copyir.com
• When the connector of the TCR sensor is disconnected copyir.com 1 Reinstall imaging unit copyir.com 2 Reinstall toner cartridge copyir.com 3 Change imaging unit/K copyir.com 4 Change PRCB copyir.com
C2559 Cyan TCR sensor adjustment failure
• TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value copyir.com 1 Reinstall imaging unit copyir.com 2 Change imaging unit copyir.com 3 Change PRCB copyir.com
C255A Magenta TCR sensor adjustment failure
• TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value copyir.com 1 Reinstall imaging unit copyir.com 2 Change imaging unit copyir.com 3 Change PRCB copyir.com
C255B Yellow TCR sensor adjustment failure
• TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value copyir.com 1 Reinstall imaging unit copyir.com 2 Change imaging unit copyir.com 3 Change PRCB copyir.com
C255C Black TCR sensor adjustment failure
• TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value copyir.com 1 Reinstall imaging unit /K copyir.com 2 Change imaging unit /K copyir.com 3 Change PRCB copyir.com
C2650 Main backup media access error
• The re-written data, which has been read out, checked and founded as error, is read out again and found as error copyir.com
• The error was found when reading out the counter value copyir.com
• The machine detects that the service EEPROM board is not loaded in position copyir.com 1 Check the connector (CN36) on PRCB, the connector (CN1) on SVERB, and the harness between the boards for proper connection and correct as necessary copyir.com 2 Change PRCB 2 copyir.com1 copyir.com Turn OFF the main power switch and replace the current PRCB with a new one copyir.com (When using a PRCB of another machine in service, be sure to use a PRCB installed in the same model copyir.com) 2 copyir.com2 copyir.com Update the PRCB firmware copyir.com 3 copyir.com After completing the firmware update, turn OFF and ON the main power switch and check to see that warm-up is started copyir.com Make sure that malfunction codes other than C2650 or improper IU/TC placement is not detected copyir.com 4 copyir.com When the trouble cannot be solved, reinstall the removed PRCB to the original board copyir.com NOTE • When taking the above steps, check whether PRCB is defective or not without replacing the SVERB copyir.com 3 Change SVERB 3 copyir.com1 copyir.com Replace the current SVERB with a new one copyir.com 3 copyir.com2 copyir.com Turn ON the main power switch and check to see that warm-up is started copyir.com (One minute is spent to prepare the new SVERB for use copyir.com During the period, the control panel backlight stays off copyir.com) Make sure that malfunction codes other than C2650 or improper IU/TC placement 3 copyir.com3 copyir.com Make the specified readjustments copyir.com 4 If the above actions do not solve the problem, contact KMBT copyir.com
C2651 EEPROM access error (IU C)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change imaging unit copyir.com 5 Change PRCB copyir.com
C2652 EEPROM access error (IU M)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change imaging unit copyir.com 5 Change PRCB copyir.com
C2653 EEPROM access error (IU Y)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change imaging unit copyir.com 5 Change PRCB copyir.com
C2654 EEPROM access error (IU K)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change imaging unit copyir.com 5 Change PRCB copyir.com
C2A01 EEPROM access error (TC C)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the toner cartridge and the machine if dirty copyir.com 2 Reinstall toner cartridge copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change toner cartridge copyir.com 5 Change PRCB copyir.com
C2A02 EEPROM access error (TC M)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the toner cartridge and the machine if dirty copyir.com 2 Reinstall toner cartridge copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change toner cartridge copyir.com 5 Change PRCB copyir.com
C2A03 EEPROM access error (TC Y)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the toner cartridge and the machine if dirty copyir.com 2 Reinstall toner cartridge copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change toner cartridge copyir.com 5 Change PRCB copyir.com
C2A04 EEPROM access error (TC K)
• An error was found when reading or writing data copyir.com
• The error was found when reading out the counter value copyir.com 1 Clean the connection between the toner cartridge and the machine if dirty copyir.com 2 Reinstall toner cartridge copyir.com 3 Check the harness for proper connection and correct as necessary copyir.com 4 Change toner cartridge copyir.com 5 Change PRCB copyir.com
C3101 Fusing roller separation failure
• With the fusing roller being retracted, the pulse of the fusing roller retraction sensor does not change even after the specified period of time has passed after the fusing retraction motor started rotating copyir.com
• With the fusing roller being pressed, the pulse of the roller retraction sensor does not change even after the specified period of time has passed after the fusing retraction motor started rotating copyir.com
• During a pressure operation of the fusing roller, the fusing roller is not at the pressed position even after the roller retraction sensor counts the specified number of pulses after the fusing retraction motor starts rotating copyir.com 1 Check the M12 connector for proper connection and correct as necessary copyir.com 2 PS38 I/O check, sensor check copyir.com 3 M12 operation check copyir.com 4 Change M12 copyir.com 5 Change fu
C3201 Fusing motor failure to turn
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the M2 connector for proper connection and correct as necessary copyir.com 2 Check the loading status of the fusing unit drive, and correct the error as necessary copyir.com 3 Check the fusing unit, PRCB for proper connection and correct or change as necessary copyir.com 4 M2 operation check copyir.com 5 Change M2 copyir.com 6 Change PRCB copyir.com
C3202 Fusing motor turning at abnormal timing
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the M2 connector for proper connection and correct as necessary copyir.com 2 Check the loading status of the fusing unit drive, and correct the error as necessary copyir.com 3 Check the fusing unit, PRCB for proper connection and correct or change as necessary copyir.com 4 M2 operation check copyir.com 5 Change M2 copyir.com 6 Change PRCB copyir.com
C3301 Fusing cooling fan motor/1 failure to turn
• The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the FM13 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM13 operation check copyir.com 4 Change FM13 copyir.com 5 Change PRCB copyir.com
C3302 Fusing cooling fan motor/2,3 failure to turn
• The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the FM11 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM11 operation check copyir.com 4 Change FM11 copyir.com 5 Change PRCB copyir.com
C3421 Fusing heaters trouble (heating side)
• The temperature detected by the heating roller thermistor/C does not reach a predetermined level after the lapse of a predetermined period of time after the heating roller fusing heater lamp lights up copyir.com
• The difference between the maximum and minimum temperatures detected by the heating roller thermistor/C within a predetermined period of time after the start of a warm-up cycle is below or above a predetermined value copyir.com
• The temperature detected after a pressure level correction remains under a predetermined level even after the lapse of a predetermined period of time after the start of the temperature detection copyir.com
• During a warm-up, a zero cross signal cannot be detected after the lapse of a predetermined period of time after the fusing heater is turned ON or OFF copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C3423 Fusing heaters trouble (pressurizing side)
• After warm-up operation starts, the fusing pressure roller thermistor does not detect a temperature as high as a predetermined one though a predetermined period of time has elapsed copyir.com
• The temperature of the pressure roller remains lower than a predetermined level even after the lapse of a predetermined period of time after a temperature correction copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C3721 Fusing abnormally high temperature detection (heating side)
• The heating roller thermistor continues to detect a temperature higher than a predetermined one for a predetermined period of time copyir.com
• Hard protection signal L is detected continuously over a predetermined period of time copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C3723 Fusing abnormally high temperature detection (pressurizing side)
• The temperature of the pressure roller continues to be higher than a predetermined level for a predetermined period of time after a temperature correction copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C3821 Fusing abnormally low temperature detection (heating side)
• The heating roller thermistor continues to detect a temperature lower than a predetermined one for a predetermined period of time copyir.com
• In the states other than a warm-up operation, a zero cross signal cannot be detected after the lapse of a predetermined period of time after the fusing heater is turned ON or OFF copyir.com
• The power supply frequency cannot be detected copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C3823 Fusing abnormally low temperature detection (pressurizing side)
• The temperature of the pressure roller continues to be lower than a predetermined level for a predetermined period of time after a temperature correction copyir.com 1 Check the fusing unit for correct installation (whether it is secured in position) copyir.com 2 Check the open/close operation of the upper right door copyir.com 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary copyir.com 4 Change fusing unit copyir.com 5 Change PRCB copyir.com 6 Change DCPU copyir.com
C4151 Polygon motor rotation trouble (C)
• The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor copyir.com
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYB/PH copyir.com 4 Change PRCB copyir.com
C4152 Polygon motor rotation trouble (M)
• The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor copyir.com
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYB/PH copyir.com 4 Change PRCB copyir.com
C4153 Polygon motor rotation trouble (Y)
• The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor copyir.com
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYB/PH copyir.com 4 Change PRCB copyir.com
C4154 Polygon motor rotation trouble (K)
• The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor copyir.com
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYB/PH copyir.com 4 Change PRCB copyir.com
C4551 Laser malfunction (C)
• SOS signal is not detected even after the lapse of a given period of time after staring the laser output copyir.com
• SOS signal is not detected for a given period of time during printing or image stabilization adjustment copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYBPH copyir.com 4 Change PRCB copyir.com
C4552 Laser malfunction (M)
• SOS signal is not detected even after the lapse of a given period of time after staring the laser output copyir.com
• SOS signal is not detected for a given period of time during printing or image stabilization adjustment copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYBPH copyir.com 4 Change PRCB copyir.com
C4553 Laser malfunction (Y)
• SOS signal is not detected even after the lapse of a given period of time after staring the laser output copyir.com
• SOS signal is not detected for a given period of time during printing or image stabilization adjustment copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYBPH copyir.com 4 Change PRCB copyir.com
C4554 Laser malfunction (K)
• SOS signal is not detected even after the lapse of a given period of time after staring the laser output copyir.com
• SOS signal is not detected for a given period of time during printing or image stabilization adjustment copyir.com 1 Check the connector for proper connection and correct as necessary copyir.com 2 Change PH unit copyir.com 3 Change REYBPH copyir.com 4 Change PRCB copyir.com
C5102 Transport motor’s failure to turn
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the M1 connector for proper connection and correct as necessary copyir.com 2 Check M1 for proper drive coupling and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 M1 operation check copyir.com 5 Change M1 copyir.com 6 Change PRCB copyir.com
C5103 Transport motor’s turning at abnormal timing
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the M1 connector for proper connection and correct as necessary copyir.com 2 Check M1 for proper drive coupling and correct as necessary copyir.com 3 Check the PRCB connector for proper connection and correct as necessary copyir.com 4 M1 operation check copyir.com 5 Change M1 copyir.com 6 Change PRCB copyir.com
C5351 Power supply 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 copyir.com 1 Check the FM8 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM8 operation check copyir.com 4 Change FM8 copyir.com 5 Change DCPU copyir.com 6 Change PRCB copyir.com
C5354 Exhaust fan motor’s failure to turn
• The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary copyir.com 1 Check the FM14 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM14 operation check copyir.com 4 Change FM14 copyir.com 5 Change PRCB copyir.com
C5357 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 copyir.com 1 Check the FM16 connector for proper connection and correct as necessary copyir.com 2 Check the fan for possible overload and correct as necessary copyir.com 3 FM16 operation check copyir.com 4 Change FM16 copyir.com 5 Change PRCB copyir.com
C6102 Drive system home sensor malfunction
• The home position sensor (PS201) is defective or the exposure unit operates erratically copyir.com 1 Correct or change the scanner drive (wire, pulley, gear, belt) if it is faulty copyir.com 2 Correct the scanner motor set screw if loose copyir.com 3 Check the PS201, M201 and BCRUB connector for proper connection and correct as necessary copyir.com 4 PS201 I/O check, sensor check copyir.com 5 M201 operation check copyir.com 6 Change M201 copyir.com 7 Change BCRUB copyir.com
C6401 Other troubles of scanner
• The scan operation was terminated abnormally because of a reason except defined trouble copyir.com 1 Check the connectors between BCRUB and MFBUB for proper connection and correct as necessary copyir.com 2 Change BCRUB copyir.com 3 Change MFBUB copyir.com 4 Change exposure unitk copyir.com
C6704 Image input time out
• The scan motion is not completed even after the lapse of a predetermined period of time because of a hardware failure or other reason copyir.com 1 Check the connectors between BCRUB and MFBUB for proper connection and correct as necessary copyir.com 2 Change BCRUB copyir.com 3 Change MFBUB copyir.com 4 Change exposure unit copyir.com
C6751 CCD clamp/gain adjustment failure
• The automatic gain control fails to converge when the main unit is started or a scan motion is started (the exposure unit does not move to the white reference position, or the automatic gain control is not properly completed as a result of a hardware failure) copyir.com 1 Correct the harness connection between CCDUB and BCRUB if faulty copyir.com 2 Check for possible extraneous light and correct as necessary copyir.com 3 Clean the lens, mirrors, CCD surface, and shading sheet if dirty 4 Correct reflective mirror of the scanner if faulty, or change scanner copyir.com 5 Change BCRUB copyir.com 6 Change exposure unit copyir.com
CC151 ROM contents error upon start-up
• A fault detected in a sequence of ROM contents check of the printer control board during starting copyir.com 1 Restart the machine copyir.com 2 Check the ROM version copyir.com 3 Rewrite the firmware copyir.com 4 Change PRCB copyir.com
CC155 Finisher ROM error
