BẢNG MÃ LỖI RICOH A0 470W, 480W

 

BẢNG MÃ LỖI RICOH A0 470W, 480W

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SC CODE RICOH AFICIO 470W, 480W
Code Description Causes
SC143 Scanner automatic adjustment error
At power on the automatic adjustment of the CIS failed after two attempts.
• White platen roller dirty or installed incorrectly. • CIS LED malfunction. • CIS • PSU harness disconnected, broken. • CIS IOB harness disconnected, broken. • CIS IPU harness disconnected, broken. • CIS • BCU harness disconnected broken. • CIS defective. • IPU defective. • IOB defective. • BCU defective.
SC191 Scanner thermistor detection error
The detected temperature reading is below 0C (32F) or above 100C (212F).
• Thermistor disconnected, connection broken. • Thermistor has short-circuited.
SC300 Charge corona output error
Charge corona feedback voltage of less than 1V was detected for more than 200 s.
• CBG power pack is defective. • High voltage cable is defective. • Poor connection of the power pack connector. • Dirty charge corona unit caused leakage.
SC303 Charge grid output error
Control PWM duty value is higher than 1% (FB less than 1V) for more than 200 ms (a grid current leak).
• CBG power pack is defective. • High voltage cable is defective. • Poor connection of the power pack connector. • Dirty charge corona unit causing leakage
SC305 Charge corona wire cleaner error
Wire cleaner motor feedback voltage of less than 0.1 V was detected for more than 1s. Corona wire cleaning did not complete within 80 s. Charge wire cleaner did not return to the home position. Cleaner does not move from the home position.
• Wire cleaner motor connector disconnected. • Wire cleaner motor connector disconnected. • Wire cleaner motor is operating without load. • Wire cleaner stops due to an overload. • Wire cleaner motor drive circuit malfunction.
SC345 Development bias error
A development bias feedback voltage of less than 0.25V was detected for more than 200 ms while the PWM duty value was more than 1% (development bias leak).
• Possible Cause • CBG power pack defective • Bias cable defective • Poor bias cable connection • Bias leak
SC347 Development drive motor lock
Development drive motor lock signal is high longer than 5 s when the development motor rotates.
Drive mechanism overload Motor defective Motor disconnected
SC350 ID sensor error 1 - Vsp
Vsp is 0V or more than 2.5 V. During the copy cycle, this SC is displayed after the copy is executed.
• ID sensor defective • ID sensor connector defective • IOB malfunction • CBG power pack defective • Dirty ID sensor • VDB defective • LPH defective
SC351 ID sensor error 2 - Vsg
Vsg is 0V or more than 2.5 V. During the copy cycle, this SC is displayed after the copy is executed.
• ID sensor defective • ID sensor connector defective • IOB malfunction • CBG power pack defective • Dirty ID sensor • VDB defective • LPH defective
SC352 ID sensor error 3 - Pattern
Pattern voltage less was less than 2.5 V and cannot be detected. During the copy cycle, this SC is displayed after the copy is executed.
• Possible Cause • ID sensor defective • ID sensor connector defective • IOB malfunction • CBG power pack defective • Dirty ID sensor • VDB defective • LPH defective
SC353 ID sensor error 4 - LED
LED drive current (PWM value) is 255 or 0. This SC could occur while the ID sensor is initializing.
• Possible Cause • ID sensor defective • ID sensor connector defective • IOB malfunction • CBG power pack defective • Dirty ID sensor • VDB defective • LPH defective
SC354 ID sensor error 5 - Timeout
Vsg cannot be adjusted to 4 ±0.2V within 20 s. This SC could occur while the ID sensor is initializing.
• ID sensor defective • ID sensor connector defective • IOB malfunction • CBG power pack defective • Dirty ID sensor • VDB defective • LPH defective
SC401 Transfer corona leak error
A transfer corona feedback voltage of less than 0.25V was detected for more than 200 ms.
• T&S power pack defective. • Transfer corona cable defective. • Poor transfer corona cable connection. • Dirty T&S corona unit caused leak
SC411 DC separation corona current leak
A dc separation feedback voltage of less than 0.5V was detected after more than 200 ms while the PWM duty value was more than 17%.
• T&S power pack defective. • Transfer corona cable defective. • Paper separation current cable defective. • Poor paper separation current cable connection.
SC440 Drum drive motor lock
The motor lock signal is on longer than 5 s while the drum drive motor is on.
• Drive mechanism overload. • Motor defective.
SC503 Cassette Tray 1 3 feed error
After the tray was closed, the lift sensor in Tray 3 did not switch on within 20 s after the tray lift motor switched on. -or-The lift sensor did not switch off within 1 s four times after the tray started to descend.
• Lift motor connector loose, disconnected, broken. • Paper or other foreign object has jammed the tray lift motor. • Pickup solenoid connector is loose, disconnected, damaged. • An obstruction in the mechanical operation of the pickup solenoid • Replace the tray lift sensor.
SC504 Cassette Tray 4 feed error
After the tray was closed, the lift sensor in Tray 4 did not switch on within 20 s after the tray lift motor switched on. -or-The lift sensor did not switch off within 1 s four times after the tray started to descend.
• Lift motor connector loose, disconnected, broken. • Paper or other foreign object has jammed the tray lift motor. • Pickup solenoid connector is loose, disconnected, damage. • An obstruction in the mechanical operation of the pickup solenoid • Replace the tray lift sensor.
SC506 Cassette feed motor error
The cassette feed motor lock signal remains HIGH longer than 2 sec. during operation. Note: When this SC occurs, paper feed from the cassette is not possible. However, feed can continue from Trays 1, 2.
• Drive mechanism overload. • Motor driver defective
SC507 Registration motor lock
The registration motor lock signal is high longer than 5 s during operation.
• Drive mechanism overload. • Motor defective.
SC531 Fusing drive motor error
The fusing drive motor lock signal remained HIGH for 5 sec.
• Fusing motor drive mechanism overloaded. • Motor defective.
SC532 Left fusing pressure motor home position error 1
The left pressure motor did not return to home position 9 s after the left pressure motor started.
• Motor drive mechanism overload. • Motor defective. • Pressure home position sensor defective.
SC533 Left fusing pressure motor home position error 2
The left pressure motor was still at the home position 1.5 s after the start signal turned on.
• Possible Cause • Motor drive mechanism overloaded. • Motor defective. • Pressure home position sensor defective or disconnected.
SC534 Right fusing pressure motor home position error 1
The right pressure motor did not return to home position 9 s after the right pressure motor started.
• Motor drive mechanism overloaded. • Motor defective. • Pressure home position sensor defective.
SC535 Right fusing pressure motor home position error 2
The right pressure motor was still at the home position 1.5 s after the start signal turned on.
• Motor drive mechanism overloaded. • Motor defective. • Pressure home position sensor defective or disconnected.
SC541 Fusing thermistor open
The fusing temperature detected by the thermistor was below 13C (55.4F) 60 times within one 1 s.
• Fusing thermistor defective • Thermistor cable disconnected, broken
SC542 Fusing temperature warm-up error
After switching on the machine, or after opening and closing the machine, during warmup the hot roller did not attain the ready temperature within 5 minutes (the temperature was detected below 2C 5 times within 5 s).
• Fusing lamp defective • Fusing thermistor defective • Thermistor floating, out of position • Thermistor cable disconnected, broken
SC543 Fusing overheat error 1 (software)
A fusing temperature of over 215 C (419F) was detected for 5 s
• IOB board defective • BCU board defective • PSU defective • TRIAC short
SC544 Fusing overheat error 2 (hardware)
The BCU backup circuit detects an overheat error even if the software overheat protection does not work.
• TRIAC short • IOB board defective • BCU board defective • PSU board defective
SC545 Fusing lamp overheat error 3
After reaching the ready temperature, the hot roller does not start to rotate and the fusing lamp stays on at full power for 60 s.
• Hot roller thermistor not positioned correctly • Fusing lamp defective • Thermostat defective
SC546 Unstable fusing temperature
Fusing temperature is rapidly fluctuating more than 20°C (68°F) at 1 s intervals. -or-Fusing temperature fluctuating over a long period. It fluctuates 20°C (68°F) more than 3 times during 60 s interval.
• Poor thermistor connection
SC547 Zero-cross signal malfunction
One of the following conditions has occurred: • Abnormal mains frequency was detected more than 10 times. • No zero-cross signal detected for 3 s while the relay is on. • No zero-cross signal detected for 3.5 s after the main switch is turned on.
• Electrical noise on the power line. • PSU defective.
SC549 Pressure roller thermistor abnormal
During fusing motor rotation, pressure roller temperature detected lower than 7°C (44.6°F) for 5 s.
• Thermistor shorted, disconnected, or its connector is damaged.
SC591 Cutter 1 home position error 1
Both left and right home position switches of the upper cutter were on just after the main switch was turned on, or just after the upper feed tray was opened and closed.
• Right or left home position switch defective.
SC592 Cutter 1 home position error 2
The left home position switch stays on 300 ms after the cutter motor turns on.
• Cutter motor cable disconnected • Cutter motor overload • Motor defective
SC593 Cutter 1 home position error 3
The home position switch stays off 1 s after the cutter motor turns on.
• Cutter motor cable disconnected • Cutter motor overload • Motor defective
SC594 Cutter 2 home position error 1
Both left and right home position switches of the lower cutter were on just after the main switch was turned on, or just after the lower feed tray was opened and closed.
• Right or left home position switch defective.
SC595 Cutter 2 home position error 2
The left home position switch stays on 300 ms after the cutter motor turns on.
• Cutter motor cable disconnected • Cutter motor overload • Motor defective
SC596 Cutter 2 home position error 3
The home position switch stays off 1 s after the cutter motor turns on.
• Cutter motor cable disconnected • Cutter motor overload • Motor defective
SC630 RSS communication error
An error was detected in communication via RSS between the machine and the RSS center. Error occurred on a public line at the RSS terminal.
• No action required
SC632 Key/card counter device error 1
After 1 data frame is sent to the device, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• The serial line from the device to the copier is unstable, disconnected, or defective.
SC633 Key/card counter device error 2
During communication with the device, the BCU received a break (Low) signal.
• The serial line from the device to the copier is unstable, disconnected, or defective.
SC634 Key/card counter device error 3
The backup battery of the counter device RAM is low.
• Replace the RAM backup battery.
SC635 Key/card counter device error 4
After installation of the device a message alerts user to a battery voltage abnormal error.
• Device control board defective • Device control board backup battery defective
SC670 Engine startup error
The BCU failed to respond with the prescribed time when the machine was turned on.
• Connections between BCU and controller board are loose, disconnected, or damaged • Replace the BCU • Replace the controller board
SC672 Controller startup error
• After power on, the line between the controller and the operation panel did not open for normal operation. • After normal startup, communication with the controller stopped.
• Controller stalled • Controller installed incorrectly • Controller board defective • Operation panel harness disconnected or defective
SC818 Watchdog error
While the system program is running, a bus hold or interrupt program goes into an endless loop, preventing any other programs from executing.
• System program defective; switch off/on, or change the controller firmware if the problem cannot be solved • Controller board defective • Replace peripheral device
SC819 Fatal kernel error
Due to a control error, a RAM overflow occurred during system processing. One of the following messages was displayed on the operation panel.
• System program defective • Controller board defective • Optional board defective • Replace controller firmware
SC820 Sellf-diagnostic error 1: CPU
An unexpected error occurred, or the boot monitor program or self-diagnostic program generated an interrupt. In either case, this is a fatal error.
• Replace the controller board • Update (upload again) all firmware modules to restore the boot program and the self-diagnostics.
SC821 Self-diagnostic error 2: ASIC
The ASIC provides the central point for the control of bus arbitration for CPU access, for option bus and SDRAM access, for SDRAM refresh, and for management of the internal bus gate
• ASIC defective, replace the controller board • ASCI timing device defective, or CPU defective. Replace the controller board.
SC822 Self-diagnostic error 3: HDD • HDD defective • HDD harness disconnected, defective • Controller board defective
SC823 Self-diagnostic error 4: NIC • If the optional NIC is detected, replace it. • Replace the controller board. • Check the interface connection between the NIC and the controller board. • Replace the NIC board. • Replace the controller board.
SC824 Self-diagnostic error 5: NVRAM • NVRAM defective • Controller board defective • NVRAM backup battery exhausted • NVRAM socket damaged
SC826 Self-diagnostic error 6: NVRAM (RTC/option NVRAM) • NVRAM defective • NVRAM installed incorrectly • Replace RTC device
SC827 Self-diagnostic error 7: RAM • Replace the RAM DIMM. • Replace the controller board
SC828 Self-diagnostic error 8: ROM • Update (upload again) all firmware modules to restore the boot program and the self-diagnostics. • Replace the controller board. • Software defective • Controller board defective • ROM defective
SC829 Self-diagnostic error 9: Optional RAM • Change the controller board or the optional RAM DIMM
SC838 Self-diagnostic error 10: Clock Generator • Replace the controller board
SC850 Net I/F error • IP address setting incorrect • NIB (PHY) board defective • Controller board defective
SC851 IEEE 1394 I/F error • NIB (PHY), LINK module defective; change the Interface Board • Controller board defective
SC853 Wireless LAN Error 1: Startup • Wireless LAN card missing (was removed)
SC854 Wireless LAN Error 2: Operation • Wireless LAN card missing (was removed)
SC855 Wireless LAN Error 3: Board Error • Wireless LAN card not installed properly • Wireless LAN card defective
SC856 Wireless LAN error 5: Board Error • Wireless LAN board defective • PCI connector (to the mother board) loose
SC857 USB I/F Error • Bad USB board connection • Replace the controller board
SC860 HDD startup error at main power on • HDD is not initialized • Level data is corrupted • HDD is defective
SC861 HDD re-try failure • Harness between HDD and board disconnected, defective • HDD power connector disconnected • HDD defective • Controller board defective
SC863 HDD data read failure • HDD defective
SC864 HDD data CRC error • HDD defective
SC865 HDD access error • HDD defective.
SC866 SD card error 1: Recognition error • Use only SD cards that contain the correct data.
SC867 SD card error 2: SD card removed • Insert the SD card, then turn the machine off and on.
SC868 SD card error 3: SC card access • SD card not inserted correctly • SD card defective • Controller board defective
SC870 Address book data error • Software defective. Turn the machine off/on. If this is not the solution for the problem, then replace the controller firmware. • HDD defective.
SC873 HDD mail send data error • Do SP5832-007 (Format HDD œ Mail TX Data) to initialize the HDD. • Replace the HDD
SC874 Delete All error 1: HDD • Turn the main switch off/on and try the operation again. • Install the Data Overwrite Security Unit again. For more, see section 1.
SC875 Delete All error 2: Data area • Turn the main switch off/on and try the operation again.
SC880 File Format Converter (MLB) error • MLB defective, replace the MLB
SC900 Electrical total counter error • NVRAM incorrect type • NVRAM defective • NVRAM data scrambled • Unexpected error from external source
SC901 Mechanical counter error • Mechanical counter connector loose, disconnected, or broken.
SC910 … SC914 External controller error • VLB defective • I/F cable defective
SC919 External controller down • Turn the machine off. • Check the I/F cable to determine if it became disconnected during operation. • Turn the machine on.
SC920 Printer error 1
An internal application error was detected and operation cannot continue.
• Software defective; turn the machine off/on, or change the controller firmware • Insufficient memory
SC921 Printer error 2
When the application started, the necessary font was not on the SD card.
• Font not on the SC card
SC925 Net File function error • Refer to the four procedures below
SC954 Printer Image Setting Error
The IPU did not issue the signal required to start image processing for the printing mode within 60 s after the paper stops for registration.
• Software defective • Replace the software (all firmware modules). • IPU defective
SC955 Memory Setting Error
Settings required for memory to start image processing are not sent from the IPU within 60 s after the paper stops for paper stops for registration
• Software defective. Replace the software (all firmware modules). • IPU defective
SC964 Scanner start signal error 1
The scanner receives another start signal after scanning has already started.
• Software defective. • Replace the software (all firmware modules).
SC965 Print start signal error 2
The printer received another print start signal after print job has already started.
• Software defective. • Replace the software (all firmware modules).
SC967 Print start signal error 3
The printer received another print start signal after print job has already started.
• Software defective. • Replace the software (all firmware modules). • BCU defective
SC990 Software error 1
The software performs an unexpected function and the program cannot continue.
• Software defective, re-boot
SC991 Software error 2
The software performs an unexpected function. However, unlike SC990, recovery processing allows the program to continue.
• Software defective, re-boot
SC992 Software error 3: Undefined
An error not controlled by the system occurred (the error does not come under any other SC code).
• Software defective • Turn the machine power off and on. The machine cannot be used until this error is corrected.
SC997 Software Error 4: Cannot select application function
An application does not start after the user pushed the correct key on the operation panel.
• Software bug • A RAM or DIMM option necessary for the application is not installed or not installed correctly.
SC998 Software Error 5: Application cannot start
Register processing does not operate for an application within 60 s after the machine power is turned on. No applications start correctly, and all end abnormally.
• Software bug • A RAM or DIMM option necessary for the application is not installed or not installed correctly.
 
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