Ricoh Aficio 2090 Error Codes2

• Code: SC520
• Description:
  Duplex Jogger Motor Error 1
  When the jogger fence moves to the home position, the duplex jogger HP sensor does not turn on even if the jogger motor has moved the jogger fence more than 153.5 mm.
• Causes:
  • Remaining paper or another obstruction is blocking the side fence • Jogger motor connection is loose

• Code: SC521
• Description:
  Duplex Jogger Motor Error 2
  When the jogger fence moves from the home position, the duplex jogger fence HP sensor does not turn off even if the jogger motor has moved the jogger fence more than 153.5 mm.
• Causes:
  • Remaining paper or another obstruction is blocking the side fence • Jogger motor connection is loose

• Code: SC531
• Description:
  Fusing/Exit Motor Lock
  A fusing/exit motor lock signal is detected for more than 2 s during operation.
• Causes:
  • Motor lock due to overload • Motor driver board defective

• Code: SC532
• Description:
  Paper Feed Motor Lock
  Paper feed motor lock signal is detected for more than 2 s during operation.
• Causes:
  • Motor lock due to overload • Motor driver board defective

• Code: SC541
• Description:
  Fusing Thermistor Open
  The fusing temperature detected by the thermistor was below 7°C for 15 s.
• Causes:
  • Fusing thermistor defective or out of position • Poor thermistor terminal connection

• Code: SC542
• Description:
  Fusing Temperature Warm-up Error
  One of the following occurred: • Hot roller did not reach target operation temperature within 6 minutes after the machine was powered or 6 minutes after the doors were closed. • Fusing temperature rose only 5oC toward the fusing temperature within 20 s after the machine was powered on, or after the doors were closed. • Fusing temperature rose only 5oC toward the fusing temperature within 25 s of the start of hot roller rotation.
• Causes:
  • Fusing lamp(s) disconnected • Thermistor out of position

• Code: SC543
• Description:
  Fusing Overheat Error 1: Software
  A fusing temperature of over 210°C is detected for 5 s by the fusing thermistor. This prevents the fusing lamps from switching on without a fusing lamp trigger signal.
• Causes:
  • AC drive board defective • BCU defective • Reload the BCU firmware

• Code: SC544
• Description:
  Fusing Overheat Error 2: Hardware
  The fusing temperature monitoring circuit detects abnormal fusing temperature.
• Causes:
  • AC drive board defective • BCU defective • Reload the BCU firmware

• Code: SC545
• Description:
  Fusing Overheat Error 3: Continuous Lamp On After warm-up and while the hot roller is not rotating, the fusing lamps remain on at full power for 90 s.
• Causes:
  • Fusing thermistor out of position • One or more fusing lamp is disconnected

• Code: SC546
• Description:
  Fusing Temperature Unstable
  The fusing temperature continues to fluctuate rapidly.
• Causes:
  • Poor thermistor connector connection • Poor fusing unit connection

• Code: SC547
• Description:
  Zero Cross Signal Malfunction
  The applied bandwidth is detected above 66 Hz or below 45 Hz, and no zero-cross signal detected for 5 s with the power relay ON.
• Causes:
  • Noise on the ac power line

• Code: SC550
• Description:
  Oil Supply/Cleaning Web End
  The oil supply/cleaning web end sensor stays on longer than the specified time after the web motor remains ON for 40 s.
• Causes:
  • Oil supply/cleaning web end (web on supply roller used up) • Oil supply/cleaning web motor defective NOTE: SP1902 001 (Web Motor Control . Web Consumption) should be set to .0. every time the oil supply/cleaning web is replaced. This setting will not take effect until the machine is cycled off/on.

• Code: SC591
• Description:
  Toner Supply Pump Motor Error
  The toner supply pump motor lock signal did not change within 1 s while the motor is operating.
• Causes:
  • Motor lock due to overload • BCU defective

• Code: SC592
• Description:
  Toner Bank Motor Error
  An abnormal signal was received from the toner bank motor.
• Causes:
  • Toner bank motor defective • Bank motor connector loose • Too much load on the drive mechanism

• Code: SC593
• Description:
  Toner Suction Motor Replace
  The operation time of the motor is over 600 hours.
• Causes:
  • Service life of the toner suction motor is finished. NOTE: A near-end message is displayed in the LCD when the operation time exceeds 570 hours.

• Code: SC601
• Description:
  Communication Error Between BCU and MCU
  One or more of the following occurred: • The BCU cannot communicate with the MCU within 0.8 s after power on. • A BREAK signal was detected after connection between the BCU and MCU. • After a communication error, three tries to communicate with the MCU failed.
• Causes:
  • Poor connection between BCU and MCU • BCU defective • MCU defective

• Code: SC620
• Description:
  Communication Error between BCU and ADF 1
  The TXD and RXD signals between BCU and ADF main board do not stabilize.
• Causes:
  • Poor connection between the BCU board and the ADF main board • Noise on interface cable

• Code: SC621
• Description:
  Communication Error between BCU and ADF 2
  The TXD and RXD signals between BCU and ADF main board do not stabilize.
• Causes:
  • Poor connection between the BCU board and the ADF main board • ADF main board defective • BCU board defective

• Code: SC622
• Description:
  Communication Error between BCU and ADF 3
  Software error after abnormal user operation.
• Causes:
  • Software error; switch the machine off/on

• Code: SC625
• Description:
  The BCU cannot communicate with the finisher properly.
  The BCU cannot communicate with the finisher properly.
• Causes:
  • Poor connection between the BCU board and the finisher main board • Finisher main board defective • BCU board 
• defective • Noise on the interface cable
• 
  

  • Code: SC626
  • Description:
    The BCU cannot communicate with the finisher properly.
    The BCU cannot communicate with the finisher properly.
  • Causes:
    • Poor connection between the BCU board and the finisher main board • Finisher main board defective • BCU board defective • Noise on the interface cable

  
  

  • Code: SC630
  • Description:
    CSS (RSS) Communication
    Japan only
  • Causes:

  
  

  • Code: SC632
  • Description:
    Charge Unit Device Error 1
    Japan Only
  • Causes:

  
  

  • Code: SC633
  • Description:
    Charge Unit Device Error 2
    Japan Only
  • Causes:

  • Code: SC670
  • Description:
    Engine Startup Error
    Several possible causes for this error: At power on or after the machine leaves the energy conservation mode: • /ENGRDY signal does not assert • IPURDY signal does not assert After power on and the prescribed time has elapsed: • No EC response from the engine • No PC response from the engine • No SC response from the engine During machine operation mode: • Write to Rapi drive failure (could not locate destination on the PCI) • After the /ENGRDY signal asserts with no effect.
  • Causes:
    • BCU - Controller Board disconnected • BCU board defective • Controller board defective • Mother board defective • Software error; switch off/on, if that fails, change the engine firmware • PSU-E or PSU-C defective

  • Code: SC672
  • Description:
    Controller Startup Error
    The line between the controller board and the operation panel does not open correctly when the machine is powered on, or after the machine was powered on communication between the controller and operation panel is suspended. The controller board and operation panel could not exchange the handshake (FDH) and acknowledge (FEH) signals within 15 s of the operation panel reset after power on, or after 2 retries there was no response to the transmission line confirmation command issued every 30 s from the operation panel to the controller board.
  • Causes:
    • Controller board defective • Controller board installed incorrectly • Operation panel harness connection loose or incorrect

  • Code: SC701
  • Description:
    ADF Pick-up Roller Release Malfunction
    The pick-up roller HP sensor does not activate or de-activate when the pick-up motor turns on.
  • Causes:
    • Pick-up roller HP sensor defective • Pick-up motor defective • ADF main control board defective

  • Code: SC702
  • Description:
    ADF Feed-in Motor Error
    While the feed motor is operating, the encoder pulse signal is not received withinthe specified time, or the paper size length encoder signal cannot be detectedwithin the specified time (the encoder is built into the feed-in motor).
  • Causes:
    • Feed-in motor defective • Paper length sensor • ADF main control board defective • Poor connection between the feed-in motor and ADF main board

  • Code: SC703
  • Description:
    ADF Transport Belt Motor Error
    While the motor is operating, the encoder pulse signal is not received within the specified time and the transport belt motor does not turn properly.
  • Causes:
    • Transport belt motor defective • Poor connection between the transport motor and ADF main board • ADF main board defective

  • Code: SC704
  • Description:
    ADF Feed-out Motor Error
    While the feed-out motor is operating, the encoder pulse signal is not receivedwithin the specified time, and the feed-out motor does not turn properly
  • Causes:
    • Feed-out motor defective • Poor connection between the feed-out motor and ADF main board • ADF main control board defective
  • • Code: SC705
    • Description:
      ADF Original Table Lift Malfunction
      One of the following conditions was detected. • The bottom plate position sensor does not activate when the bottom plate motor lifts the original table. • The bottom plate HP sensor does not activate when the bottom plate motor lowers the original table.
    • Causes:
      • Bottom plate position sensor defective • Bottom plate HP sensor defective • Bottom plate motor defective • ADF main control board defective
    • Code: SC720
    • Description:
      Finisher Lower Transport Motor Error
      The encoder pulse signal of the lower transport motor (B478) or stapler transport motor (B468) does not change within the specified time, and the lower transport motor does not turn properly
    • Causes:
      • Lower transport motor/stapler transport motor defective • Poor connection between the lower transport motor (or stapler transport motor) and finisher main board • Finisher main control board defective • Motor overload
    • Code: SC722
    • Description:
      Finisher Jogger Motor Error
      The jogger fences move out of the home position but the HP sensor output does not change within the specified number of pulses.
    • Causes:
      • Jogger HP sensor (B478)/ jogger fence HP sensor (B468) defective • Overload on the jogger mechanism • Jogger motor (B478)/jogger fence motor (B468) defective (not rotating) • Finisher main control board defective • Poor connection between the jogger motor and finisher main board
    • Code: SC724
    • Description:
      Finisher Staple Hammer Motor Error
      Stapling does not finish within the specified time (450 ms) after the staple hammer motor turned on.
    • Causes:
      • Staple jam • Overload because number of sheets exceeds the limit • Staple hammer motor (B478)/stapler motor (B468) defective • Poor motor cable connection
    • Code: SC725
    • Description:
      Finisher Stack Feed-out Motor Error
      The stack feed-out belt HP sensor does not activate within the specified time after the stack feed-out belt motor turned on.
    • Causes:
      • Stack feed-out HP sensor defective • Poor stack feed-out belt motor cable connection • Stack feed-out belt motor defective • Finisher main control board • Motor overload
    • Code: SC726
    • Description:
      Finisher Shift Motor Error (B478 only)
      The shift tray half-turn sensor status does not change within 1 second after the shift motor turns on.
    • Causes:
      • Shift tray half-turn sensor defective • Poor shift tray half-turn sensor connection or defective harness • Shift motor defective • Finisher main control board defective • Motor overload
    • Code: SC727
    • Description:
      Finisher Stapler Rotation Motor Error
      The stapler does not return to its home position within the specified time after stapling finished.
    • Causes:
      • Staple rotation HP sensor defective • Poor stapler rotation motor connection • Stapler rotation motor defective • Finisher main board defective • Motor overload
    • Code: SC729
    • Description:
      Finisher Punch Motor Error
      The punch HP sensor is not activated within the specified time after the punch motor turned on.
    • Causes:
      • Punch HP sensor defective • Poor punch motor connection • Punch motor defective • Finisher main board defective • Motor overload
    • Code: SC730
    • Description:
      Finisher Stapler Motor Error
      The stapler HP sensor is not activated within the specified time after the stapler motor turned on.
    • Causes:
      • Stapler HP sensor defective • Poor stapler motor (B478)/stapler movement motor (B468) connection • Stapler motor (B478)/stapler movement motor (B468) defective • Finisher main board defective • Motor overload
    • Code: SC731
    • Description:
      Finisher Positioning Roller Error (B478 only)
      The positioning roller HP sensor in the finisher is not activated within the prescribed length of time (340 pulses) for two counts.
    • Causes:
      If powering the machine off/on does not solve the problem: • Positioning roller HP sensor defective or disconnected • Stapler transport motor or positioning roller solenoid defective • Finisher main control board defective • Finisher control board defective • Jam NOTE: 1) If the motor operates, then check the positioning roller HP sensor. 2) If the motor does not operate, then check the motor and the finisher control board. 3) If the harness connections are secure, the motor may be defective.
    • • Code: SC732
      • Description:
        Finisher Jogger Motor Error
        The jogger HP sensor is not activated within the prescribed length of time.
      • Causes:
        • Jogger HP sensor (B478)/jogger fence HP sensor (B468)/shift jogger HP sensor (optional jogger unit) disconnected or defective • Jogger motor (B478)/jogger fence motor (B468)/shift jogger motor (optional jogger unit) disconnected or defective • Finisher main control board defective • Overload NOTE: 1) If cycling the machine off/on does not solve the problem, then the HP sensor may be defective. 2) Be sure to check all harness connections. 3) If the motor operates, then the HP sensor is defective. 4) If the motor does not operate, then the motor or the finisher main control board is defective. 5) Make sure that the jogger unit is not overloaded.
      • Code: SC735
      • Description:
        Finisher Paper Stack Plate Motor Error (B478)
        One of the stack plate HP sensors (front, center, or rear) does not turn on within the prescribed time after the stack plate motor turned on.
      • Causes:
        • One of the stack plate HP sensors is defective • Poor stack plate motor connection • One of the stack plate motors is defective • Finisher main control board defective • Motor overload
      • Code: SC736
      • Description:
        Finisher Exit Guide Motor Error (B478 only)
        The exit guide open sensor does not change within the specified time after the exit guide motor is energized.
      • Causes:
        • Exit guide open sensor defective • Poor exit guide motor connection • Exit guide motor defective • Finisher main control board defective • Motor overload
      • Code: SC737
      • Description:
        Full Finisher Staple Waste Hopper (B478)
        The staple waste hopper is full.
      • Causes:
        • Staple waste hopper is full (remove hopper and empty it)
      • Code: SC738
      • Description:
        Finisher Shift Tray Lift Motor Error (B478)
        The staple mode HP or shift mode HP sensor does not activate within the specified time after the tray lift motor turned on.
      • Causes:
        • Staple mode HP or shift mode HP sensor defective • Staple mode HP or shift mode HP sensor connection loose or broken • Tray lift motor defective • Finisher main control board defective • Motor overload
      • Code: SC740
      • Description:
        Finisher Upper Tray Lift Motor Error (B468)
        The upper tray paper height sensor does not change its status with the specified time after the tray raises or lowers.
      • Causes:
        • Upper tray paper height sensor defective • Upper tray paper height sensor connection loose or broken • Tray lift motor defective • Finisher main control board defective • Motor overload
      • Code: SC741
      • Description:
        Finisher Lower Tray Lift Motor Error (B468)
        The lower tray paper height sensor does not change its status with the specified time after the tray raises or lowers.
      • Causes:
        • Lower tray paper height sensor defective • Lower tray paper height sensor connection loose or broken • Tray lift motor defective • Finisher main control board defective • Motor overload
      • Code: SC742
      • Description:
        Finisher Shift Motor Error (B468)
        Shift motor not detected at the home position within the specified time.
      • Causes:
        • Shift roller HP sensor defective • Shift roller HP sensor connection loose or broken • Shift motor defective • Finisher main control board defective • Motor overload
      • Code: SC743
      • Description:
        Finisher Pressure Plate Motor Error (B468)
        Pressure plate motor operating but the plate is not detected at the home position within the specified time.
      • Causes:
        • Pressure plate HP sensor defective • Pressure plate HP sensor connection loose or broken • Pressure plate motor defective • Finisher main control board defective • Motor overload
      • Code: SC744
      • Description:
        Finisher Exit Guide Motor Error (B468)
        After moving away from the guide plate position sensor, the exit guide is not detected at the home position within the specified time (800 ms)
      • Causes:
        • Guide plate motor overload • Motor defective • Motor harness defective • Motor connector loose
      • • Code: SC745
        • Description:
          Finisher Folder Plate Motor Error (B468)
          The folder plate moves but is not detected at the home position within the specifiedtime.
        • Causes:
          • Folder plate HP sensor defective • Folder plate HP sensor harness broken or poor connection • Folder plate motor defective • Finisher main control board defective • Motor overload
        • Code: SC746
        • Description:
          Stapler Unit Saddle Stitch Motor Error 1
          The front stapler unit saddle-stitch motor does not start operation within the specified time (450 ms).
        • Causes:
          • Motor harness defective or connection loose • Motor defective • Finisher main controller board defective • Motor overload
        • Code: SC747
        • Description:
          Stapler Unit Saddle Stitch Motor Error 2
          The rear stapler unit saddle-stitch motor does not start operation within the specified time (450 ms).
        • Causes:
          • Motor harness defective or connection loose • Motor defective • Finisher main controller board defective • Motor overload
        • Code: SC750
        • Description:
          Cover Interposer Tray Bottom Plate Motor Error
          One of the following events occurred: • After the motor starts to raise the bottom plate, the bottom plate position sensor does not detect the plate at the specified time (3 s). • After the motor starts to lower the bottom plate, the bottom plate HP sensor does not detect the bottom plate.
        • Causes:
          • Bottom plate position sensor defective • Bottom plate HP sensor defective • Bottom plate lift motor defective • Cover interposer tray main board defective • Motor connectors loose or harness defective
        • Code: SC800
        • Description:
          Video Output Transmission End Error
          A video signal is sent to the engine but no command is received within the prescribed time from the engine to signal the end of transfer . output all black.
        • Causes:
          • Controller defective
        • Code: SC804
        • Description:
          Video Input End Error
          Video transfer is requested from the scanner, but no command is received within the prescribed time from the scanner to signal a response, and output is all black.
        • Causes:
          • Controller board defective
        • Code: SC817
        • Description:
          Monitor Error
          This is a file detection and electronic file signature check error when the boot loader attempts to read the self-diagnostic module, system kernel, or root system files from the OS Flash ROM, or the items on the SD card in the controller slot are false or corrupted.
        • Causes:
          • OS Flash ROM data defective; change the controller firmware • SD card data defective; use another SD card • For example: Data in the self-diagnostic module, system kernel, or root system files are corrupted or do not exist in OS flash ROM or on the SD card Files in the self-diagnostic module, kernel, or root file system on the SD card have been falsified or altered NOTE: 1) Before discarding the SD card, try to update the data on the card. If the error occurs again, the card may be defective. 2) Be sure to use an SD card that contains the correct electronic signature.
        • Code: SC818
        • Description:
          Watch Dog Error
          While the system program is running, a bus hold or interrupt program goes into an endless loop, preventing any other programs from executing.
        • Causes:
          • System program defective; switch off/on, or change the controller firmware if the problem cannot be solved • Controller board defective • Controller option malfunction
        • Code: SC819
        • Description:
          Fatal kernel error
          RAM overflow occurs during system processing. One of the following messages is displayed on the operation panel.
        • Causes:
          • Controller board defective • Software defective; change the controller firmware
        • Code: SC821
        • Description:
          Self-Diagnostic Error 1: ASIC Not Detected
        • Causes:
          • ASIC (Bassoon) defective • Poor connection between North Bridge and PCI I/F NOTE: Replace the controller board.
        • • Code: SC822
          • Description:
            Self-Diagnostic Error 2: HDD
          • Causes:
            • One or both HDDs defective
          • Code: SC824
          • Description:
            Self-Diagnostic Error 3: NVRAM
          • Causes:
            • NVRAM not installed • NVRAM defective • Controller board defective • Backup battery has discharged
          • Code: SC826
          • Description:
            Self-Diagnostic Error 4: RTC Backup Battery Error
            The RTC backup battery has discharged or the voltage of the installed battery is not within the specified range.
          • Causes:
            • NVRAM installed incorrectly • RTC backup battery defective • Controller board defective • NVRAM defective
          • Code: SC828
          • Description:
            Self-Diagnostic Error 5: ROM Error
            Measuring the CRC for the boot monitor and operating system program results in an error. This check is not executed when booting the machine from an SD card.
          • Causes:
            • SD card defective • Controller board defective
          • Code: SC829
          • Description:
            Self-Diagnostic Error 6: Optional RAM 
            A check of the optional RAM installed in Slot 0 on the controller board returned anerror.
          • Causes:
            • RAM DIMM installed incorrectly • RAM DIMM defective • RAM DIMM slot damaged or defective; replace the controller board
          • Code: SC833
          • Description:
            Self-Diagnostic Error 7: Engine I/F ASIC
            NOTE: For more details about this SC code error, execute SP5990 to print an SMC report so you can read the error code. The error code is not displayed on the operation panel.
          • Causes:
            • The ASIC (Mandolin) for system control is defective • I/F between North Bridge and AGPI is defective NOTE: Replace the Mother Board.
          • Code: SC834
          • Description:
            Self-Diagnostic Error 8: Optional Memory RAM DIMM
            The write/verify check for the optional RAM chip on the engine I/F board (mother board) returned an error
          • Causes:
            • Controller board defective • Mother board defective
          • Code: SC838
          • Description:
            Self-Diagnostic Error 9: Clock Generator
            Setup data is read from the clock generator via the I2C bus but differs from the prescribed value due to defects in the clock generator, in the I2C bus, or the I2C bus port for the PCU.
          • Causes:
            • Controller board defective
          • Code: SC850
          • Description:
            Network I/F Error
            One of the following conditions exists: • Duplicate IP addresses • Illegal IP address • Driver unstable and cannot be used on the network.
          • Causes:
            • IP address setting incorrect • NIB (PHY) defective • Controller board defective
          • Code: SC851
          • Description:
            IEEE 1394 I/F Error
            Driver setting incorrect and cannot be used by the 1394 I/F.
          • Causes:
            • NIB (PHY), LINK module defective; change the Interface Board • Controller board defective
          • • Code: SC853
            • Description:
              Wireless LAN Error 1
              The board that holds the wireless LAN card can be accessed, but the wireless LAN card (802.11b/Bluetooth) itself could not be accessed while the machine was starting up.
            • Causes:
              • Wireless LAN card has been removed
            • Code: SC854
            • Description:
              Wireless LAN Error 2
              The board that holds the wireless LAN card can be accessed, but the wireless LAN card (802.11b/Bluetooth) itself cannot be could not be accessed while the machine was operating.
            • Causes:
              • Wireless LAN card has been removed
            • Code: SC855
            • Description:
              Wireless LAN Error 3
              An error is detected for the wireless LAN card (802.11b or Bluetooth).
            • Causes:
              • Wireless LAN card defective • Wireless card connection not tight
            • Code: SC856
            • Description:
              Wireless LAN Error 4
              An error is detected for the wireless LAN board (802.11b or Bluetooth).
            • Causes:
              • Wireless LAN card board defective • PCI connector loose (External controller interface board)
            • Code: SC857
            • Description:
              USB I/F Error 1
              The USB driver is unstable and generated an error. The USB I/F cannot be used.
            • Causes:
              • USB board or controller board defective
            • Code: SC860
            • Description:
              HDD Error 1
            • Causes:
              • Hard disks are not formatted • Hard disk corrupted; reformat the disks with SP mode
            • Code: SC861
            • Description:
              HDD Error 2: HDD Startup
              The hard disks were detected at power on, but the disks were not detected within 30 s after recovery from the energy conservation mode.
            • Causes:
              • Cable between the hard disks and controller board disconnected or loose • Hard disk power connector loose • One of the hard disks is defective • Controller or mother board defective
            • Code: SC862
            • Description:
              HDD Error 3: Bad Sectors
              The number of bad sectors on the HDD in the area for storing images exceeds 101.
            • Causes:
              • Too many bad sectors accumulated on the HDDs. NOTE: 1) Execute SP5832 002 (HDD Formatting . IMH) to format the HDD and replace the bad sectors; copy the stamp data after doing this (use SP 5853). 2) HDD replacement is recommended because an HDD unit that generates bad sectors is probably of poor quality and performs poorly.
            • Code: SC863
            • Description:
              HDD Error 4: HDD Read Error
              The system cannot read the data written on the hard disks.
            • Causes:
              • Sectors on the disks have become corrupted during operation; replace the hard disks
            • Code: SC864
            • Description:
              HDD Error 5: Data CRC Error
              During HDD operation, the HDD could not respond to a CRC error query.
            • Causes:
              • Mother board defective
            • • Code: SC865
              • Description:
                HDD Error 6: Access Error
                HDD responded to an error during operation for a condition other than those for SC863, 864.
              • Causes:
                • HDD defective
              • Code: SC866
              • Description:
                SD Card Error 1: Confirmation
                The machine detects an electronic license error in the application on the SD card inserted in the controller slot when the machine is powered on. The program stored on the SD card contains electronic confirmation license data. If the program does not contain this license data, or if the result of the check reveals the license data in the program on the SD card is incorrect, then the checked program cannot execute and this SC code is displayed.
              • Causes:
                • Required program missing or incorrect NOTE: Download the correct program for this machine onto the SD card.
              • Code: SC867
              • Description:
                SD Card Error 2: SD Card Removed
                The SD card inserted in the boot slot when the machine was powered on was removed while the machine was still switched on.
              • Causes:
                • SD card removed from boot slot on the controller • Cycle the machine off/on
              • Code: SC868
              • Description:
                SD Card Error 3: SD Card Access
                An error is returned during an operation using an SD card. Debug console acquires more detailed information about the error.
              • Causes:
                • SD card not inserted completely • SD card defective • Controller board defective NOTE: If this SC code is displayed again after cycling the machine off and on, use another SD card. If this does not solve the problem, replace the controller board.
              • Code: SC870
              • Description:
                Address Book Data Error
                Address book data stored on the hard disk was detected as abnormal when it was accessed from either the operation panel or the network. The address book data cannot be read from the HDD or SD card where it is stored, or the data read from the media is defective.
              • Causes:
                • Software defective; switch off/on, and change the controller firmware if the problem is not solved • HDD defective
              • Code: SC880
              • Description:
                Media Link Board Error
                A request for access to the Media Link Board was not answered within the specified time.
              • Causes:
                • Media Link Board defective
              • Code: SC900
              • Description:
                Electrical Total Counter Error
                The total counter contains data that is not a number.
              • Causes:
                • NVRAM disturbed unexpectedly • NVRAM defective • NVRAM data corrupted
              • Code: SC901
              • Description:
                Mechanical Total Counter Error
                The mechanical total counter is disconnected.
              • Causes:
                • User removed the counter while it was operating • Poor connection • Mechanical total counter defective
              • Code: SC919
              • Description:
                External Controller Error 6 
                While EAC (External Application Converter), the conversion module, was operating normally, the receipt of a power line interrupt signal from the FLUTE serial driver was detected, or BREAK signal from the other station was detected.
              • Causes:
                • Power outage at the EFI controller • EFI controller was rebooted • Connection to EFI controller loose
              • Code: SC920
              • Description:
                Printer Error 1
                An internal application error was detected and operation cannot continue.
              • Causes:
                • Software defective; switch off/on, or change the controller firmware if the problem is not solved • Insufficient memory
              • • Code: SC921
                • Description:
                  Printer Error 2
                  When the printer application started, the font to use could not be found on the SD card.
                • Causes:
                  • The font is not on the SD card
                • Code: SC925
                • Description:
                  NetFile Function Error
                  The NetFile file management on the HDD cannot be used, or a NetFile management file is corrupted and operation cannot continue. The HDDs are defective and they cannot be debugged or partitioned, so the Scan Router functions (delivery of received faxes, document capture, etc.), Web services, and other network functions cannot be used.
                • Causes:
                  • HDD defective • Power supply to machine cut occurred while writing data to HDD • Software error
                • Code: SC951
                • Description:
                  F-GATE Signal Error
                  When the IPU has already received the F-GATE signal (laser writing start trigger signal), the IPU receives another F-GATE signal.
                • Causes:
                  • Software defective; switch off/on, or change the BCU firmware if this does not solve the problem • BCU defective
                • Code: SC953
                • Description:
                  Scanner Image Setting Error
                  The settings required for image processing using the scanner are not sent from the IPU.
                • Causes:
                  • Check the connections between the MCU and LCDC and BCU • Replace the MCU, BCU, or IPU • Change the BCU or MCU firmware
                • Code: SC954
                • Description:
                  Printer Image Setting Error
                  The settings that are required for image processing using the printer controller are not sent from the IPU.
                • Causes:
                  • Check the connections between the IPU and the LDB, and from the LDB to the polygon mirror motor control PCB. • Change the IPU or LDB • Change the polygon mirror motor or the polygon mirror motor control PCB • Change the BCU firmware
                • Code: SC955
                • Description:
                  Memory Setting Error
                  The settings that are required for image processing using the memory are not sent from the IPU.
                • Causes:
                  • Format the hard disks • Change the hard disks • Controller defective • Change the mother board or IPU • Change the controller firmware or the BCU firmware
                • Code: SC964
                • Description:
                  Scanner Start Error
                  During scanned image processing, another command to start scanning was received.
                • Causes:
                  • Change the BCU firmware
                • Code: SC965
                • Description:
                  Print Start Error
                  During print processing, another command to start printing was received.
                • Causes:
                  • Change the BCU firmware
                • Code: SC966
                • Description:
                  Polygon Mirror Motor Ready Error
                  The polygon mirror motor does not reach ready status within 15 s after the copy paper is detected by the registration sensor. (15 s after the write request was issued for the IPU, the F-GATE signal remained LOW.)
                • Causes:
                  • Polygon mirror motor defective • Poor connection between polygon mirror motor drive board and BCU • Polygon mirror motor drive board defective • BCU defective
                • Code: SC970
                • Description:
                  Scanner Ready Error
                  The scan ready signal is not generated by the MCU for more than 10 s after the read start signal is sent to the MCU.
                • Causes:
                  • Serial data transfer between MCU and BCU (through the LCDC) • Change the MCU firmware
                • • Code: SC990
                  • Description:
                    Software Performance Error 1
                    An unexpected operation was encountered by the software.
                  • Causes:
                    • Software crash; reboot the machine
                  • Code: SC991
                  • Description:
                    Software Error 2
                    Software attempted to execute an unexpected operation. However, unlike SC990, operation can be recovered.
                  • Causes:
                    • Software crash; reboot the machine
                  • Code: SC992
                  • Description:
                    Software Error 4: Undefined Error
                    Software encountered an unexpected operation. This error is issued if the error cannot be covered by SC990.
                  • Causes:
                    • Software defective • An error undetectable by any other SC code occurred
                  • Code: SC997
                  • Description:
                    Application Selection Error
                    An application did not start after pressing the appropriate key on the operation panel.
                  • Causes:
                    • Software bug; change the firmware for the application that failed • A RAM or DIMM option required by the application is not installed or not installed correctly.
                  • Code: SC998
                  • Description:
                    Application Start Error
                    Register processing does not execute for any application within 60 s after the machine is powered on. No application starts correctly, and all end abnormally.
                  • Causes:
                    • Software defective; change the firmware for the application that failed • A RAM or DIMM option required by the application is not installed or not installed correctly.
                  • Code: SC999
                  • Description:
                    Program Download Error
                    The program download from the SD card does not execute normally. This SC is not logged.
                  • Causes:
                    • Card installed incorrectly • BCU defective • SD card defective • Controller board defective • Power down during program downloading • Wrong type of card inserted (see Section 5 .Service Tables. for downloading procedures)
                  •