Ricoh Aficio 550
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Коды ошибок
SC101
SC120
SC121
SC190
SC191
SC302
SC303
SC305
SC320
SC321
SC322
SC323
SC325
SC350
SC360
SC361
SC390
SC391
SC392
SC401
SC405
SC440
SC490
SC501
SC502
SC503
SC504
SC506
SC507
SC521
SC524
SC541
SC542
SC543
SC545
SC546
SC547
SC600
SC601
SC602
SC604
SC605
SC620
SC621
SC623
SC625
SC720
SC721
SC722
SC723
SC724
SC900
Описание
| Error code: | SC101 |
| Description: | Exposure lamp error The white level peak did not reach the prescribed threshold when the white plate was scanned. |
| Causes: | The scanner has scanned the white plate, but cannot detect the certain white level. • Defective exposure lamp • Defective exposure lamp stabilizer • Defective power source harness • Defective signal harness • High-voltage cable leak • Defective darkness starting characteristic |
| Remedy: | • Dirty optics • Exposure lamp defective • Exposure lamp does not turn ON • Lamp stabilizer defective • High voltage line leak • Power/signal harness defective |
| Error code: | SC120 |
| Description: | Scanner home position error 1 The scanner home position sensor did not detect the home position (did not go OFF) after the scanner moved forward 20 mm.. |
| Causes: | The scanner home position sensor does not detect the scanner leaving the home position. • Defective scanner home position sensor • Defective scanner home position sensor harness • Defective scanner motor driver • Defective scanner motor |
| Remedy: | • Scanner motor driver board defective • Scanner motor defective • Scanner HP sensor defective • Harness between scanner motor and scanner I/O board disconnected or broken. |
| Error code: | SC121 |
| Description: | Scanner home position error 2 The scanner home position sensor did not go ON after the scanner moved forward 1 mm and the feeler entered the HP sensor. |
| Causes: | The scanner home position sensor does not detect the scanner coming back to the home position. • Defective scanner home position sensor • Defective scanner home position sensor harness • Defective scanner motor driver • Defective scanner motor |
| Remedy: | • Scanner motor defective • Scanner HP sensor disconnected, defective |
| Error code: | SC190 |
| Description: | EX-IPU board error 1 An error is detected during the ASIC register check. |
| Causes: | • EX-IPU board defective |
| Error code: | SC191 |
| Description: | Original exit roller thermistor error The original exit roller thermistor reading was abnormal. |
| Causes: | • Thermistor connection loose, broken, defective • Thermistor short • Harness between thermistor and IOB loose, broken, defective • IOB defective • BCU defective |
| Error code: | SC302 |
| Description: | AC charge output error 3: C An interrupt checks the status of the power pack every 2 ms. This SC is issued if the BICU detects a short in the AC charge for black, magenta, cyan, or yellow (V = 0, for example) for 500 ms (250 times). |
| Causes: | This SC is issued if the BICU detects a short in the power pack 10 times consecutively. Open circuit (+) / Short circuit (-) |
| Remedy: | • High voltage power supply • BICU defective • OPC unit defective 1. Disconnect the high voltage cable from Terminal C of the multiple highvoltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is nearly "0", check the highvoltage harness for defects and replace it if necessary. 4. Test the conductivity between the OPC unit and the ground. If there is no conductivity between the OPC unit and ground, replace the OPC unit. 5. If there is no charge PWM signal, replace the harness and/or BICU. |
| Error code: | SC303 |
| Description: | AC charge output error 4: Y An interrupt checks the status of the power pack every 2 ms. This SC is issued if the BICU detects a short in the AC charge for black, magenta, cyan, or yellow (V = 0, for example) for 500 ms (250 times). |
| Causes: | • Disconnect the high voltage cable from Terminal C of the power pack. • Attach a voltmeter to the terminal. • If there is no output from the terminal, replace the power pack. -or- • If there is output from the terminal, test the resistance between the high voltage cable and the ground. • If resistance is nearly "0", check the high-voltage harness for defects and replace it if necessary. • Test the conductivity between the PCU and the ground. If there is no conductivity between the PCU and ground, replace the PCU. • If there is no charge PWM signal, replace the harness and/or BCU. |
| Remedy: | • High voltage power supply • BICU defective • OPC unit defective 1. Disconnect the high voltage cable from Terminal C of the multiple highvoltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is nearly "0", check the highvoltage harness for defects and replace it if necessary. 4. Test the conductivity between the OPC unit and the ground. If there is no conductivity between the OPC unit and ground, replace the OPC unit. 5. If there is no charge PWM signal, replace the harness and/or BICU. |
| Error code: | SC305 |
| Description: | Charge corona wire cleaner error The wire cleaning pad did not return to its home position within 5 sec. after wire cleaning. |
| Causes: | • Wire cleaner motor harness loose, broken, defective • Wire cleaner motor defective • Charge corona wire defective |
| Remedy: | • This SC is not issued if SP2804 is set to zero (no cleaning). • If immediate repair is not possible, set SP2804 to zero to switch off the charge corona cleaner function. |
| Error code: | SC320 |
| Description: | Development power pack error 1: K An interrupt checks the status of the each power pack every 2 ms. This SC is issued if the BICU detects a short in the development DC charge for black, magenta, cyan, or yellow (or V = 0) for 500 ms (250 times). |
| Causes: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective |
| Remedy: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective 1. Disconnect the high voltage cable from Terminal B of the high-voltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is "0" or nearly "0", check the high-voltage harness for defects and replace it if necessary. If replacing the harness does not solve the problem, 4. Test the resistance between the development unit terminal and the ground. If there is no resistance (0Ù) between the development unit and the ground, replace the development unit. 5. If there is no development PWM signal, replace the harness and/or IOB. |
| Error code: | SC321 |
| Description: | Development power pack error 2: M An interrupt checks the status of the each power pack every 2 ms. This SC is issued if the BICU detects a short in the development DC charge for black, magenta, cyan, or yellow (or V = 0) for 500 ms (250 times). |
| Causes: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective |
| Remedy: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective 1. Disconnect the high voltage cable from Terminal B of the high-voltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is "0" or nearly "0", check the high-voltage harness for defects and replace it if necessary. If replacing the harness does not solve the problem, 4. Test the resistance between the development unit terminal and the ground. If there is no resistance (0Ù) between the development unit and the ground, replace the development unit. 5. If there is no development PWM signal, replace the harness and/or IOB. |
| Error code: | SC322 |
| Description: | Development power pack error 3: C An interrupt checks the status of the each power pack every 2 ms. This SC is issued if the BICU detects a short in the development DC charge for black, magenta, cyan, or yellow (or V = 0) for 500 ms (250 times). |
| Causes: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective |
| Remedy: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective 1. Disconnect the high voltage cable from Terminal B of the high-voltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is "0" or nearly "0", check the high-voltage harness for defects and replace it if necessary. If replacing the harness does not solve the problem, 4. Test the resistance between the development unit terminal and the ground. If there is no resistance (0Ù) between the development unit and the ground, replace the development unit. 5. If there is no development PWM signal, replace the harness and/or IOB. |
| Error code: | SC323 |
| Description: | Development power pack error 4: Y An interrupt checks the status of the each power pack every 2 ms. This SC is issued if the BICU detects a short in the development DC charge for black, magenta, cyan, or yellow (or V = 0) for 500 ms (250 times). |
| Causes: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective |
| Remedy: | • Development power pack defective • High voltage power supply defective • High voltage power supply harness defective • Development unit defective • IOB harness disconnected or defective • IOB defective 1. Disconnect the high voltage cable from Terminal B of the high-voltage supply board. 2. Attach a voltmeter to the terminal. 3. If there is no output from the terminal, replace the high voltage power supply. -or- If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is "0" or nearly "0", check the high-voltage harness for defects and replace it if necessary. If replacing the harness does not solve the problem, 4. Test the resistance between the development unit terminal and the ground. If there is no resistance (0Ù) between the development unit and the ground, replace the development unit. 5. If there is no development PWM signal, replace the harness and/or IOB. |
| Error code: | SC325 |
| Description: | Development motor error 2: M The PLL lock signal remained HIGH or LOW for longer than the prescribed time for the development motor of the affected color. |
| Causes: | • Development motor shaft locked, blocked by obstruction • Development motor defective • DRB defective |
| Remedy: | • Development motor shaft locked, blocked by and obstruction • DRB (Drive Board) defective |
| Error code: | SC350 |
| Description: | Developer Fill Error: K The PCU failed to fill with developer from the developer bottle when SP3814-1 was executed. |
| Causes: | • Developer bottle not set correctly • Developer in the bottle is clogged and not flowing Note: For detailed information about how to handle problems developer filling, see "Handling Problems with Developer Filling" under "PCU" in Section 3. |
| Remedy: | 1. Check if the connectors on the TD sensor interface board 1 (copier) and the main control board (CN353) are properly connected. 2. Make sure 5V and 12V are provided to the TD sensor interface board 1 from the main control board (CN353). 3. Check if the harnesses are damaged. 4. Make sure TD sensor interface boards 1 and 2 are properly installed. 5. Replace TD sensor interface board s1, 2, main control board, and/or the I/O control board. |
| Error code: | SC360 |
| Description: | TD sensor (Vt high) error 1: K The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 4.5V for two counts. |
| Causes: | These SC codes are issued if the TD sensor output is greater than 4.7V after 20 consecutive readings. |
| Remedy: | • Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor. 1. Turn the machine OFF and ON. 2. Check the black, magenta, cyan, or yellow TD sensor connector and harness between the TD sensor and PCU for damage. 3. Check the drawer connector. 4. Replace the TD sensor. 5. After replacing the black TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually. |
| Error code: | SC361 |
| Description: | TD sensor (Vt high) error 2: M The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 4.5V for two counts. |
| Causes: | These SC codes are issued if the TD sensor output is greater than 4.7V after 20 consecutive readings. |
| Remedy: | • Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor. 1. Turn the machine OFF and ON. 2. Check the black, magenta, cyan, or yellow TD sensor connector and harness between the TD sensor and PCU for damage. 3. Check the drawer connector. 4. Replace the TD sensor. 5. After replacing the black TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually. |
| Error code: | SC390 |
| Description: | TD sensor error 2 The TD sensor outputs less than 0.5V or more than 4.0V 10 times consecutively during copying. Note: If the fax option is installed, this SC is issued immediately. If the fax option is not installed, this SC is issued after the prescribed number of pages is copied. |
| Causes: | • TD sensor abnormal • Poor connection of the TD sensor harness |
| Remedy: | • Replace the TD sensor. • Replace the harness of the TD sensor. |
| Error code: | SC391 |
| Description: | Development bias leak The PWM output level was detected higher than 50% after 10 consecutive samplings. |
| Causes: | • high voltage power supply board defective • High voltage power supply board (power pack) harness loose, broken. • PCU connection loose or broken |
| Remedy: | • Cycle the main power off/on • Replace the harness of the high voltage power supply board (power pack). • Replace the PCU. |
| Error code: | SC392 |
| Description: | Development bias error The PWM duty level was detected higher than 5% within 100 ms after high voltage output started, and the feedback voltage was detected less than 0.3 V for more than 200 ms. |
| Causes: | • Harness connection between CGB power pack and IOB loose, broken, defective • CGB power defective • High voltage cable damaged |
| Error code: | SC401 |
| Description: | ID sensor error 2: Vsg When the ID sensor was calibrated, Vsg (reflectivity of the bare drum surface) was detected less than 2.5V after two attempts. -or- After calibration, Vsg was detected as 5.0V at PWM adjustment and PWM=0. |
| Causes: | • Dirty ID sensor • ID sensor harness connection loose, broken, defective • TD power pack defective • IOB defective |
| Error code: | SC405 |
| Description: | ID Sensor Pattern Maximum Coverage Error 4: Y The amount of toner applied to create the yellow ID sensor pattern between sheets (SP3101-4 ID Pattern Display - Applied: Y) exceeded the maximum threshold of 0.7 mg/cm2 due to an over supply of yellow toner. |
| Causes: | • Yellow toner supply unit defective |
| Error code: | SC440 |
| Description: | Image transfer power pack error 1: K An interrupt checks the status of the power pack every 2 ms. This SCis issued if the BICU detects a short in the power pack for K, M, C, or Y 250 times within 500 ms. |
| Causes: | • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged |
| Remedy: | • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged • IOB damaged |
| Error code: | SC490 |
| Description: | Peltier Unit error The Abnormal Condition signal or the Peltier Unit is received 10 times. |
| Causes: | • No ITB unit in the machine • Dirty TM sensor |
| Remedy: | • Peltier Unit is defective |
| Error code: | SC501 |
| Description: | Tray 1 (tandem tray) feed error (Japan Only) • The tray 1 lift sensor does not switch ON 10 s after the tray lift motor switches ON and starts lifting the bottom plate. • When the tray lowers, the tray lift sensor does not go off within 1.5 sec. • The lower limit sensor of the tandem tray does not detect the lower limit within 10 sec. |
| Causes: | • Tray lift motor harness disconnected, loose, defective • Paper or other obstacle trapped between tray and motor • Tray lift sensor disconnected, damaged • Lower limit sensor disconnected, damaged • Pick-up solenoid disconnected, blocked by an obstacle |
| Remedy: | • Tray lift motor harness disconnected, loose, defective • Paper or other obstacle trapped between tray and motor • Tray lift sensor disconnected, damaged • Lower limit sensor disconnected, damaged • Pick-up solenoid disconnected, blocked by an obstacle |
| Error code: | SC502 |
| Description: | Tray 2 (paper cassette) feed error (Japan Only) • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • When the tray lowers, the tray lift sensor does not go off within 1.5 sec. • The lower limit sensor of the tandem tray does not detect the lower limit within 10 sec. |
| Causes: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Remedy: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Error code: | SC503 |
| Description: | Tray 1 feed error • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • When the tray lowers, the tray lift sensor does not go off within 1.5 sec. |
| Causes: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Remedy: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Error code: | SC504 |
| Description: | Tray 2 feed error • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • When the tray lowers, the tray lift sensor does not go off within 1.5 sec. |
| Causes: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Remedy: | • Tray lift motor defective or disconnected • Paper or other obstacle trapped between tray and motor • Pick-up solenoid disconnected or blocked by an obstacle |
| Error code: | SC506 |
| Description: | Tandem tray back fence motor error. The back fence should be closed but the fence was not detected in the closed position within 500 ms. -or- The back fence should be open but the fence was not detected in the open within 500 ms. |
| Causes: | The tray lift motor, pick-up solenoid, lift sensor, or lower limit sensor did not operate correctly. |
| Remedy: | • Paper loaded incorrectly • Back fence motor harness disconnected, loose, defective • Back fence motor defective • Paper blocking sensors • Paper stuck between tray and motor • Back fence close, back fence open sensor harnesses disconnected, loose, or defective. • Back fence close, back fence open sensor defective • Paper or other obstacle is interfering with movement of the fence |
| Error code: | SC507 |
| Description: | Tandem Tray Rear Fence Motor Error (1st Tray) |
| Causes: | One of the following occurred: • The return sensor does not switch on within 10 sec. after the rear fence motor switches on. • The HP sensor does not switch on 10 sec. after the rear fence motor switches on. • The HP sensor and return sensor switch on at the same time. |
| Remedy: | • Rear fence motor harness disconnected or broken • Paper or other obstacle interfering with operation of the sensors • Paper or other obstacle trapped between tray and motor • Motor mechanical overload due to obstruction • Return sensor or HP sensor harness disconnected or broken • Return sensor or HP sensor dirty • Rear fence motor defective • Return sensor or HP sensor defective |
| Error code: | SC521 |
| Description: | Exit Motor Error |
| Causes: | The exit motor failed to start within the prescribed time or failed during normal operation. |
| Remedy: | • Exit motor harness disconnected or defective • Exit motor shaft locked, blocked by obstruction • Exit motor defective |
| Error code: | SC524 |
| Description: | SC524-01 C Relay Motor: Lock SC524-02 C Registration Motor: Lock SC524-03 C Bypass Tray Feed Motor: Lock. The motor error notification register is always monitored at 500 ms intervals. When a register indicates an error five times consecutively, the motor is assumed to be malfunctioning. |
| Causes: | • Motor defective/connecter disconnected • Harness broken/IOB defective • Encoder defective • Unit torque increased. |
| Remedy: | • Replace the motor or connector. • Replace the harness or IOB. • Replace the unit. |
| Error code: | SC541 |
| Description: | Heating roller thermistor 1 error 1: Poor connection. The temperature measured by the heating roller thermistor does not reach 130°C after 10 tries and 65 sec. have elapsed. |
| Causes: | • Disconnected thermistor • Defective harness connection |
| Remedy: | • Heating roller thermistor harness connection loose, disconnected, defective • Defective heating roller thermistor |
| Error code: | SC542 |
| Description: | Heating roller thermistor 1 error 2: No warmup. After the main switch is turned ON or the cover is closed, the heating roller temperature does not reach the ready temperature within 2 sec. after the heater switches ON. -or- If the roller was below 45°C, the heating roller did not reach the ready temperature 2 sec. after reaching 45°C. Note: Thermistor 2 stops monitoring the temperature once Thermistor 1 detects ready temperature. |
| Causes: | • Defective thermistor • Incorrect power supply input at the main power socket • Defective fusing lamp |
| Remedy: | • Thermistor is bent, installed incorrectly • Defective heating roller thermistor • Heating roller fusing lamp broken Do SP5810 to cancel the SC fusing code. |
| Error code: | SC543 |
| Description: | Heating roller thermistor 1 error 3: Software - High temperature. The thermistor detected a temperature over 230°C. |
| Causes: | • Defective I/O control (EGB) • Defective EGB |
| Remedy: | • TRIAC short • IOB defective • BICU defective • Fusing temperature out of control Do SP5810 to cancel the SC fusing code. |
| Error code: | SC545 |
| Description: | Heating roller thermistor 1 error 5: Lamp remains ON. After hot roller reaches warmup temperature, the fusing lamps remained ON at full capacity for 25 sec. after reaching the warmup temperature while the hot roller was not rotating. |
| Causes: | • Deformed thermistor • Thermistor not in the correct position • Defective fusing lamp |
| Remedy: | • Thermistor damaged, or out of position • Fusing lamp disconnected, broken |
| Error code: | SC546 |
| Description: | Heating roller thermistor 2 error 1: Thermistor disconnected. The temperature measured by the heating roller thermistor does not reach 0°C after 45 sec. and remains over this temperature for 10 readings. |
| Causes: | Unstable connector contact of fusing thermistor |
| Remedy: | • Loose connection of the heating roller thermistor • Defective heating roller thermistor |
| Error code: | SC547 |
| Description: | Zero cross error. When the main switch is turned ON, the machine checks how many zero-cross signals are generated within 500 ms. This SC code is issued if the number of zerocross signals detected is either more than 66 or less than 45 for 10 readings. Note: Zero cross signals, generated from an ac power supply, are used to generate a trigger pulses to control the applied power accurately. |
| Causes: | Defective fusing lamp relay |
| Remedy: | • Electrical noise on the power supply line • Fusing relay damaged: replace the PSU. Normally, this SC is cancelled if you do SP5810 to cancel the SC fusing code. |
| Error code: | SC600 |
| Description: | NVRAM (ECU) version differ There is no version history in the program of NVRAM |
| Causes: | • Incorrect firmware installed. |
| Error code: | SC601 |
| Description: | Communication Error Between BCU and MCU One or more of the following occurred: • The BCU cannot communicate with the MCU within 100 ms after power on after 3 tries. • 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 |
| Remedy: | 1. Check that connectors CN355 and CN407 are properly connected on the sub control board and scanner IPU board. 2. Replace the sub and/or main scanner IPU board. 3. Replace the main control board. |
| Error code: | SC602 |
| Description: | Ri10 error Ri10 cannot be started, read, written. |
| Causes: | • Defective ECU |
| Error code: | SC604 |
| Description: | Make-up RAM error The RAM for the make-up pattern data cannot be reset. |
| Causes: | • Defective ECU |
| Remedy: | 1. Make sure the IDU board is properly connected to the sub scanner IPU board. 2. Replace the IDU board. 3. Replace the scanner sub and/or main IPU board. |
| Error code: | SC605 |
| Description: | Shut off solenoid lock Does not shut off for more than 6 seconds after the shut off solenoid on signal is generated. |
| Causes: | • Defective main switch |
| Error code: | SC620 |
| Description: | ARDF communication error. A BREAK signal occurs after the machine detects the ARDF, or a communication timeout occurs. |
| Causes: | No response from the ADF after connection to the main machine or an error occurred after connection. |
| Remedy: | • ARDF disconnected • IPU board harness disconnected, defective • IPU board defective • Spurious noise from the power supply line • ARDF control board defective |
| Error code: | SC621 |
| Description: | Mailbox-to-Finisher communication error. Communication between the mailbox and finisher is interrupted. An ACK/NCK signal was not received within 100 ms after a data frame is sent and 3 retries failed. |
| Causes: | The UART generated an error when the finisher was connected. |
| Remedy: | • Connection cable between mailbox and finisher disconnected, defective • Finisher main board defective • BICU defective • PSU defective |
| Error code: | SC623 |
| Description: | Duplex unit communicatio n error While the BCU communicates with an optional unit, an SC code is displayed if one of following conditions occurs. 1. The BCU receives a signal which is generated by the peripherals only just after the main switch is turned on. 2. When the BCU does not receive an OK signal from a peripheral 100ms after sending a command to it. The BCU resends the command. The BCU does not receive an OK signal after sending the command 3 times. |
| Causes: | • Cable problems • BCU problems • PSU problems in the machine • Duplex control board problem |
| Remedy: | 1. Turn the main switch off and on. 2. Check if the cable of the duplex inverter unit is properly connected. 3. Replace the PSU if no power is supplied to the peripherals. 4. Replace the duplex control board in the inverter unit. |
| Error code: | SC625 |
| Description: | VBCU-DTMB (DMC1) communication error Communication between the VBCU and DMC (main) was interrupted. An ACK/NAK signal was not received within 100 ms after a data frame was sent and three retries failed. |
| Causes: | • Check the DTMB harness connections at the DTMB and VBCU • DTMB defective • PSU defective • VBCU defective • 5V power supply defective |
| Remedy: | 1. Check the connector of the optical-fiber cable is properly set on the FPU main board and main control board or check if it is damaged. 2. Replace the FPU main board. 3. Replace the scanner IPU board. |
| Error code: | SC720 |
| Description: | Finisher lower transport motor error. No encoder pulse signal is detected for the transport motor within the prescribed time. The 1st failure issues an original jam message, and the 2nd failure issues this SC code. |
| Causes: | • Harness short-circuit -80 only • Overload • Motor defective • Solenoid defective -03, -80 only • Connector disconnected • Encoder defective -10, -25, -34 -81 only • Home position sensor defective |
| Remedy: | • Lower transport motor disconnected, defective • Finisher connection to transport motor loose, defective • Lower transport motor defective • Finisher main board defective |
| Error code: | SC721 |
| 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. The 1st failure issues an original jam message, and the 2nd failure issues this SC code. |
| Causes: | • Overcurrent (-03 only) • Staple jam (-44 only) • Encoder error (-11, -11, -25, -44) • Motor defective • Connecter disconnected, or loose • Motor overload • HP sensor defective • Paper surface sensor defective (-70 only) |
| Remedy: | • Jogger HP sensor disconnected, defective • Jogger motor disconnected, defective • Jogger motor overloaded due to obstruction • Finisher main board and jogger motor connection loose, defective • Finisher main board defective |
| Error code: | SC722 |
| Description: | Finisher SR3210 Error |
| Causes: | • Overcurrent (-03 only) • Staple jam (-44 only) • Encoder error (-11, -11, -25, -44) • Motor defective • Connecter disconnected, or loose • Motor overload • HP sensor defective • Paper surface sensor defective (-70 only) |
| Remedy: | Check if the SC occurs by opening/closing covers, and input/output check. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. • The target parts are the motor and related HP sensor for which the SC occurred. 1. Check if the connector of the target part is connected securely. Reconnect the connector if it is disconnected, or loose. 2. Check the harness for the target part. Replace the harness if it is damaged. 3. Check if the motor runs, is properly driven, has no overloads, and the sensors turn OFF/ON correctly.Replace the parts if there are any defects. 4. Check if there are any signs of a short circuit. Replace the parts if there are any defects. |
| Error code: | SC723 |
| Description: | Finisher feed-out motor. The stack feed-out belt HP sensor does not activate within the specified time after the stack feed-out belt motor turns ON. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. |
| Causes: | The motor that drives the rotation of the positioning sponge roller is not operating. |
| Remedy: | • Stack feed-out HP sensor disconnected, defective • Feed-out motor disconnected, defective • Finisher main board connection to feed out motor disconnected, defective • Motor overload due to obstruction |
| Error code: | SC724 |
| Description: | Finisher stapler hammer motor error. Stapling does not finish within the prescribed time after the staple hammer motor turns ON. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. |
| Causes: | The motor that lowers and raises the positioning roller above the stapling tray not operating. |
| Remedy: | • Stapler hammer motor overloaded due to obstruction, jammed staple, number of sheets exceeds limit for stapling • Stapler hammer motor disconnected, defective • Staple hammer motor HP sensor disconnected, defective |
| Error code: | SC900 |
| Description: | Electrical total counter error. The total counter contains something that is not a number. |
| Causes: | The total counter contains data that is not a number. |
| Remedy: | • NVRAM incorrect type • NVRAM defective • NVRAM data scrambled • Unexpected error from external source |
