BẢNG MÃ LỖI RICOH MP 5500,MP6500, MP 7500, MP600, MP700,MP 8000

 

BẢNG MÃ LỖI RICOH MP 5500,MP6500, MP 7500, MP600, MP700,MP 8000

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SERVICE MANUAL SC RICOH MP 5500, MP 6500, MP 7500, MP 6000, MP 7000
MP 8000.
CODE NGUYÊN NHÂN KHẮC PHỤC
101 Exposure Lamp Error
At trigger on, the lamp was not detected on.
• Exposure lamp defective
• Lamp regulator defective
• Lamp regulator harness damaged, disconnected
• Dirty standard white plate
• Scanner mirror dirty or out of position
• Lens dirty, out of position
• SBU board defective
120 Scanner home position error 1
The scanner HP sensor does not detect the on condition during initialization or copying.
• BCU, SDRB (Scanner Driver Board) defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner motor disconnected.
• Scanner HP sensor defective.
• Harness between scanner HP sensor and BCU disconnected.
• Scanner wire, timing belt, pulley, carriage installed incorrectly.
121 Scanner home position error 2
The scanner HP sensor does not detect the off condition during initialization or copying.
• BCU, SDRB (Scanner Driver Board) defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner motor disconnected
• Scanner HP sensor defective
• Harness between scanner HP sensor and BCU disconnected
• Scanner wire, timing belt, pulley, carriage installed incorrectly.
122 Scanner home position error 3
The scanner home position sensor does not detect the on condition during original scanning.
• BCU, SDRB (Scanner Driver Board) defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner motor disconnected
• Scanner HP sensor defective
• Harness between scanner HP sensor and BCU disconnected
• Scanner wire, timing belt, pulley, carriage installed incorrectly
123 Scanner home position error 4
The scanner home position sensor does not detect the off condition during original scanning.
• BCU, SDRB (Scanner Driver Board) defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner motor disconnected
• Scanner HP sensor defective
• Harness between scanner HP sensor and BCU disconnected
• Scanner wire, timing belt, pulley, carriage installed incorrectly.
143 SBU auto adjust error
Automatic adjustment of the SBU fails when the machine is switched on.
• Exposure lamp defective
• Exposure lamp regulator defective
• Harness between exposure lamp and lamp regulator is disconnected
• White plate installed incorrectly or is dirty
• Scanning mirrors of the exposure unit are dirty or out of position
• SBU board defective
• VIB board defective.
• Harness between SBU, VIB disconnected
• Harness between VIB, BCU disconnected
144 SBU transmission error
After the SBU switches on, the BCU detects one of the following conditions on the SBU:
• 1 s after power on, the SYDI signal does not go high, even after 1 retry.
• 1 s after power on, the SYDI signal goes high, but the SBU ID could not be read after 3 attempts.
• SBU defective
• VIB defective
• Harness (40-pin shielded) between the SBU, VIB is disconnected
• Harness (shielded cable) between the VIB, BCU is disconnected
165 Copy data security unit error B828
The copy data security option is installed by not operating correctly.
• Copy data security card corrupted
• The board is not installed or the board is defective
• IPU board defective
181 CIS lamp abnormal
After the CIS lamp trigger goes on, the CIS lamp is not detected on. Detecting the lamp on or off determines the peak white level value for shading correction. (If the peak level is determined to be below a certain level, the CIS lamp is judged to be off.)
• CIS lamp defective
• CIS power supply board defective
• CIS lamp regulator defective
• Harness between lamp and lamp regulator is disconnected.
• Harness between CIS, ADF is disconnected
• CIS exposure glass dirty.
• White roller dirty or installed incorrectly
• CIS unit defective
183 CIS auto adjust error
Automatic adjustment of the CIS unit failed.
• CIS unit defective
• CIS exposure glass dirty
• White roller dirty or installed incorrectly
184 CIS transmission error
When the CIS is powered on, the ADF detects one of the following abnormal conditions on the CIS unit: 
• The SOUT signal does not go high within 1 s after power on. 
• The SOUT signal goes high within 1 s after power on, but the SBU ID cannot be read after 3 attempts.
• CIS unit defective 
• Harness between the CIS, ADF is disconnected
202 Polygon mirror motor error 1: Timeout at ON
The polygon mirror motor unit did not enter "Ready" status within 20 sec. after the motor was turned on, or within 20 sec. after the speed of rotation was changed.
• The polygon mirror motor PCB connector is loose, broken, or defective 
• Polygon mirror motor PCB defective
• Polygon mirror motor defective 
• IPU defective
203 Polygon mirror motor error 2: Timeout at OFF
The polygon mirror motor did not leave "Ready" within 3 sec. after the motor was switched off. (The XSCRDY signal did not go HIGH (inactive) within 3 sec.)
• The polygon mirror motor PCB connector is loose, broken, or defective
• Polygon mirror motor PCB defective
• Polygon mirror motor defective 
• IPU defective
204 Polygon mirror motor error 3: XSCRDY signal error
The polygon mirror motor "Ready" signal went inactive (HIGH) while the motor was operating at normal speed, even though the motor was neither switched off nor was there a request for a change in speed.
• Electrical oise interference on the line with the motor signals 
• Polygon mirror motor PCB connector loose, broken, defective 
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
205 Polygon mirror motor error 4: Unstable timeout
The "Ready" signal (XSCRDY) was detected as unstable for more than 20 sec. while the polygon mirror motor was operating at normal speed.
• Electrical noise on the line with the motor signals 
• Polygon mirror motor PCB connector loose, broken, defective 
• Polygon mirror motor PCB defective
• IPU defective
220 Laser synchronization detection error
The 1st laser synchronization detection unit could not detect the line synchronization signal (DETP0) within 500 ms while the polygon mirror motor was operating at normal speed. Note: The unit polls for the signal every 50 ms. This SC is issued after the 10th attempt fails to detect the signal.
• Laser synchronization board connector loose, broken, defective 
• Laser synchronization detection board is not installed correctly (out of alignment) 
• Laser synchronization board defective • IPU defective
300 Charge corona output error
The feedback voltage from the charge corona unit is detected too high 9 times
• Charge corona power pack defective 
• Charge corona harness disconnected 
• Poor charge corona unit connection
303 Charge corona grid leak
When the high voltage is output to the corona grid, feedback voltage exceeds the prescribed value 9 times.
• Charge corona power pack defective 
• Charge corona harness disconnected • Poor charge corona unit connection
304 Charge grid circuit open
When high voltage goes to the corona grid, feedback voltage is more than the set value 9 times. This feedback voltage is used to update PWM for output control.
• Charge corona unit defective or disconnected 
• Charge corona harness defective 
• Charge corona power pack is defective.
305 Charge corona wire cleaner error 1
The charge cleaner pad does not arrive at the home position: 
• Motor locked within 4 s after switching on, or does not lock within 30 s. 
• Motor locked within 10 s after reversing, or does not lock within 30 s.
• Charge corona wire cleaner motor defective 
• Motor driver defective
306 Charge corona wire cleaner error 2
Charge coronal motor is disconnected. (The current at the charge corona motor is detected less than 83 mA.)
• Charge corona wire cleaner motor connector is defective, connected
310 Potential sensor calibration error 1
During drum potential sensor calibration, the drum potential sensor output voltage does not meet specification when test voltages (– 100V, –800V) are applied to the drum.
• Potential sensor defective
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• Development power pack defecti
311 Potential sensor calibration error 2
During drum potential sensor calibration, the drum potential sensor output voltage does not meet specification when test voltages (– 100V, –800V) are applied to the drum.
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• Development power pack defective
312 Potential sensor calibration error 3
During drum potential sensor calibration when adjusting the drum potential (VD), the drum potential sensor detects VD higher than VG (grid voltage). -or- When adjusting VD (drum surface potential of black areas after exposure), even after 5 adjustments of VG (charge corona grid potential), VD could not be set in the target range (– 800±10 + VL + 130V)
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• Development power pack defective 
• Charge corona unit worn out, dirty
314 Potential sensor calibration error 4
During drum potential sensor calibration when adjusting the drum potential (VH) for LD power adjustment, the first time the VH pattern is made, the drum potential sensor detects that VH is more than 500V: VH > |–500 + VL + 130| V
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• LD defective
315 Potential sensor calibration error 5
During drum potential sensor calibration, when –100V is applied to the drum, the output value is out of the prescribed range
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected
• IOB defective 
• OPC connector defective 
• Development power pack defectiv
316 Potential sensor calibration error 6
During drum potential sensor calibration, when –800V is applied to the drum, the output value is out of the prescribed range.
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• Development power pack defective
317 Potential sensor calibration error 7
During drum potential sensor calibration, when VL is adjusted, the pattern surface potential VL pattern is not within range 0V ~ –400V. (VL is the potential after exposing a white pattern.)
• Potential sensor defective 
• Potential sensor harness disconnected 
• Potential sensor connector defective or disconnected 
• IOB defective 
• OPC connector defective 
• Charge corona power pack defective 
• Development power pack defective
321 F-GATE error
The laser writing signal (F-GATE) for the IPU does not go LOW within 60 s.
• BICU board defective 
• PCI bus between controller board, BICU board defective
322 Laser synchronization detector error
After the polygon motor reaches standard rotation speed and the LD unit fires for 500 ms, the laser synchronization detector does not generate a signal
• Harness between detector and I/F disconnected or damaged 
• Detector is installed incorrectly 
• Detector board is defective 
• IPU board defective
335 Polygon mirror motor error 1
The ready signal does not go low within 20 s after the polygon mirror motor turns on or changes speed.
• Harness between I/F and polygon motor disconnected or defective 
• Polygon motor or polygon motor driver defective 
• IPU board defective
336 Polygon mirror motor error 2
The ready signal does not go high within 20 s after the polygonal mirror motor turns off.
• Harness between I/F and polygon motor disconnected or defective 
• Polygon motor or polygon motor driver defective 
• IPU board defective
337 Polygonal mirror motor error 3
The XSCRDY signal goes high while the polygon mirror motor turns on, even though there was no request to either turn off the motor or change the motor speed.
• Noise on the line where the polygon ready signal (XSCRDY) is transmitted. 
• Harness between the polygon motor and I/F disconnected or defective. 
• Polygon motor or polygon motor driver defective
338 Polygonal mirror motor error 4
While the polygon motor is rotating, the XSCRDY signal goes high during exposure
• Noise on the linef where the polygon ready signal (XSCRDY) is transmitted. 
• Harness between the polygon motor and I/F disconnected or defective. 
• Polygon motor or polygon motor driver defective 
• IPU board defective
340 TD sensor output error
TD sensor output voltage (Vt), measured during each copy cycle, is detected 10 times at one of the following levels: Vt = 0.5 volts or lower Vt = 4.0 volts or higher
• TD sensor defective 
• TD sensor harness disconnected 
• TD sensor connector disconnected or defective 
• IOB defective 
• Toner bottle motor defective Note: When the TD sensor is defective, the toner supply is controlled using pixel count and the ID sensor.
341 TD sensor adjustment error 1
During the TD sensor auto adjustment, the TD sensor output voltage (Vt) is 2.5 volts or higher even though the control voltage is set to the minimum value (PWM = 0). When this error occurs, SP2-906-1 reads 0.00V. Note: This SC is released only after correct adjustment of the TD sensor has been achieved. Switching the machine off and on will cancel the SC display, but does not release ID sensor toner supply.
• TD sensor defective 
• TD sensor harness disconnected 
• TD sensor connector disconnected or defective 
• IOB defective 
• Toner bottle motor defective Note: When the TD sensor is defective, the toner supply is controlled using pixel count and the ID sensor.
342 TD sensor adjustment error 2
During the TD sensor auto adjustment, the TD sensor output voltage (Vt) does not enter the target range (3.0 ± 0.1V) within 20 s. When this error occurs, the display of SP2-906-1 reads 0.00V. Note: This SC is released only after correct adjustment of the TD sensor has been achieved. Switching the machine off and on will cancel the SC display, but does not release ID sensor toner supply.
• TD sensor defective 
• TD sensor harness disconnected 
• TD sensor connector disconnected or defective 
• IOB defective
345 Development output abnormal
The high voltage applied to the development unit is detected 10 times higher than the upper limit (45%) of PWM.
• Development power pack defective 
• Development bias leak due to poor connection, defective connector
350 ID sensor error 1
One of the following ID sensor output voltages was detected twice consecutively when checking the ID sensor pattern. Vsp . 2.5V Vsg < 2.5 Vsp = 0V Vsg = 0
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
351 ID sensor error 2
The ID sensor output voltage is 5.0V and the PWM signal input to the ID sensor is 0 when checking the ID sensor pattern.
• ID sensor defective 
• ID sensor harness disconnected 
• ID sensor connector defective • IOB defective 
• ID sensor pattern not written correctly 
• Incorrect image density 
• Charge power pack defective 
• ID sensor dirty
352 ID sensor error 3
For 2 s during the ID sensor pattern check, the ID sensor pattern edge voltage is not 2.5V or the pattern edge is not detected within 800 ms.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
353 ID sensor error 4
One of the following ID sensor output voltages is detected at ID sensor initialization. . Vsg < 4.0V when the maximum PWM input (255) is applied to the ID sensor. . Vsg . 4.0V when the minimum PWM input (0) is applied to the ID sensor.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
354 ID sensor error 5
Vsg falls out of the adjustment target (4.0 ± 0.2V) during Vsg checking
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
355 ID sensor error 6
The Vp value, which measures the reflectivity of the ID sensor pattern, was not in the range of –70V to –400V.
• Potential sensor defective
• Potential sensor harness defective
• Potential sensor disconnected
• IOB defective
• OPC unit connector defective
• Charge corona power pack defective
• Charge corona wire dirty, broken
401 Transfer output abnormal
When the transfer is output, the feedback voltage remains higher than 4V for 60 ms.
• Transfer power pack defective 
• Transfer current terminal, transfer power pack disconnected, damaged connector
402 Transfer output abnormal release detection
When the transfer is output, there is hardly any feedback voltage within 60 ms even with application of 24% PWM.
• Transfer power pack defective 
• Transfer unit harness disconnected 
• Transfer connector loose, defective
430 Quenching lamp error
At the completion of auto process control initialization, the potential of the drum surface detected by the potential sensor is more than –400V, the prescribed value.
• Quenching lamp defective
• Quenching lamp harness disconnected
• Quenching lamp connector loose,
defective
440 Main motor lock
The main motor lock signal remains low for 2 seconds while the main motor is on.
• Drive mechanism overloaded
• Motor driver board defective
441 Development motor lock
The development motor lock signal remains high for 2 seconds while the development motor is on.
• Drive mechanism overloaded due to toner clumping in the wasted toner path 
• Motor driver board defective
490 Main fan error
The main fan motor lock signal goes high for 5 s while the fan is on.
• Fan motor overloaded due to obstruction
• Fan connector disconnected
495 Toner recycling unit error
Encoder pulse does not change for 3 s after the main motor switches on.
• Waste toner transport has stopped due to motor overload 
• Toner end sensor detective, disconnected
496 Toner collection bottle errorThe toner collection bottle set switch remains off when the front door is closed. • No toner collection bottle set 
• Poor connection of the switch connector
497 Toner collection motor error
The toner collection motor connector set signal remains off for 1 s.
• Toner pump motor defective 
• Motor connector loose, disconnected
501 Tray 1 lift malfunction
• 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. 
• Tray overload detected when the tray is set. 
• The lower limit sensor of the LCT does not detect the lower limit within 10 sec.
• Tray lift motor defective, disconnected 
• Paper or other obstacle trapped between tray and motor 
• Pick-up solenoid disconnected, blocked by an obstacle 
• Too much paper loaded in tray Note (B246) 
• At first, the machine displays a message asking the operator to reset the tray. 
• This SC will not display until the operator has pulled the tray out and pushed it in 3 times. 
• If the operator cycles the machine off/on before the 3rd opening and closing of the tray, the 3-count is reset.
502 Tray 2 lift malfunction
• 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. 
• Tray overload detected when the tray is set.
• Tray lift motor defective or disconnected 
• Paper or other obstacle trapped between tray and motor 
• Pick-up solenoid disconnected or blocked by an obstacle 
• Too much paper loaded in tray Note (B246) 
• At first, the machine displays a message asking the operator to reset the tray. 
• This SC will not display until the operator has pulled the tray out and pushed it in 3 times. 
• If the operator cycles the machine off/on before the 3rd opening and closing of the tray, the 3-count is reset.
503 Tray 3 lift malfunction
• 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. 
• Tray overload detected when the tray is set.
• Tray lift motor defective or disconnected 
• Paper or other obstacle trapped between tray and motor 
• Pick-up solenoid disconnected or blocked by an obstacle 
• Too much paper loaded in tray Note (B246) 
• At first, the machine displays a message asking the operator to reset the tray. 
• This SC will not display until the operator has pulled the tray out and pushed it in 3 times. 
• If the operator cycles the machine off/on before the 3rd opening and closing of the tray, the 3-count is reset.
504 Tray 4 lift malfunction
• 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. 
• Tray overload detected when the tray is set
• Tray lift motor defective or disconnected 
• Paper or other obstacle trapped between tray and motor 
• Pick-up solenoid disconnected or blocked by an obstacle 
• Too much paper loaded in tray Note (B246) 
• At first, the machine displays a message asking the operator to reset the tray. 
• This SC will not display until the operator has pulled the tray out and pushed it in 3 times. 
• If the operator cycles the machine off/on before the 3rd opening and closing of the tray, the 3-count is reset.
507 LCT feed motor malfunction
One of the following conditions is detected: 
• The LD signal from the feed motor is detected abnormal for 50 ms after the motor switches on. 
• At power on, the motor is detected loose or disconnected
• Feed motor defective 
• Feed motor connector disconnected 
• Obstacle interfering with mechanical movement of motor.
510 LCT tray malfunction
One of the following conditions is detected: 
• When the bottom plate is lifted, the upper limit sensor does not come on for 18 s. 
• When the bottom plate is lowered, the lower limit sensor does not come on for 18 s. 
• After lift begins, the upper limit sensor does not switch on before the pick-up solenoid switches on.
• The paper end sensor switches on during lift and the upper limit sensor does not switch on for 2.5 s, and a message prompts user to reset paper.
• Tray lift motor defective or connector disconnected 
• Lift sensor defective or disconnected 
• Pick-up solenoid defective or disconnected 
• Paper end sensor defective
515 Tandem rear fence motor error
One of the conditions is detected: 
• 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.
• Rear fence motor defective or poor connection 
• 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 defective or dirty Note (B246) 
• This problem will not issue the SC code on the operation panel. 
• The machine will prompt the operator to reset tray by opening and closing it. 
• If the problem persists, the machine will display again and the tray cannot be used.
520 Duplex jogger motor error 1
When the jogger fence moves to the home position, the jogger HP sensor does not turn on even if the jogger fence motor has moved the jogger fence 153.5 mm
• Paper or other obstacle has jammed mechanism 
• Sensor connector disconnected or defective 
• Sensor defective
521 Duplex jogger motor error 2
When the jogger fence moves from the home position, the jogger fence HP sensor does not turn off even if the jogger motor has moved the jogger fence 153.5 mm.
• Paper or other obstacle has jammed mechanism 
• Sensor connector disconnected or defective 
• Sensor defective
531 Fusing exit motor error
The PLL lock signal was low for 2 seconds during motor operation.
• Motor lock caused by physical overload
• Motor drive PCB defective
541 Fusing thermistor open
The fusing temperature detected by the center thermistor was below 0°C for 7 sec.
• Thermistor open
• Thermistor connector defective
• Thermistor damaged, or out of position
• Fusing temperature –15% less than the standard input voltage
542 Fusing temperature warm-up error
One of the following occurred: 
• After power on, or after closing the front door, the hot roller does not reach the 100°C control temperature within 25 s. 
• 5 sec. after temperature rise started, temperature remained below 21°C after 5 samplings. 
• Fusing unit did not attain reload temperature within 48 sec. of the start of fusing temperature control.
• Fusing lamp disconnected
• Thermistor warped, out of position
• Thermostat not operating
543 Fusing lamp overheat error 1 (software)
Central thermistor detected a temperature of 240°C at the center of the hot roller. Fusing temperature control software error
• PSU defective
• IOB defective
• BICU defective
544 Fusing lamp overheat error 1 (hardware)
The central thermistor or an end thermistor detected a temperature of 250°C on the hot roller.
• PSU defective
• IOB defective
• BICU defective
545 Fusing lamp overheat error 2
After hot roller reaches warmup temperature, the fusing lamps remained on at full capacity for 11 samplings (1.8 sec. duration) while the hot roller was not rotating.
• Thermistor damaged, or out of position
• Fusing lamp disconnected
547 Zero cross signal malfunction
One of the following conditions is detected 10 times: 
• When the main switch is on, the frequency measured by the number of zero cross signals for 500 ms is larger than 66Hz or smaller than 45 Hz. 
• The interval between one zero cross signal and the next is 7.5 ms or shorter 3 times consecutively for 500 ms.
• Noise on the ac power line
550 Fusing Web End
Web end detected 5 times within 500 ms and web motor continues to rotate 40 s. If web end is detected for another 500 ms, then the SC is logged.
• Web end (requires replacement) 
• Web end sensor defective Note: After replacing the web with a new one, reset SP1902 001 to "0" to release SC550.
551 Fusing thermistor error 1
The end thermistor (contact type) was less than 0C (32F) for more than 7 seconds.
• Thermistor disconnected 
• Thermistor connector defective
552 Fusing thermistor error 2
The end thermistor (contact type) could not detect: 
• 100°C 25 seconds after the start of the warmup cycle. 
• A change in temperature more than than 16 degrees for 5 seconds. 
• The reload temperature with 56 seconds after the start of the fusing temperature control cycle.
• Fusing lamp disconnected
• Thermistor bent, damaged
• Thermistor position incorrect
553 Fusing thermistor error 3
The end thermistor (contact type) was at 240°C (464°F) for more than 1 second. The temperature is read 10 times every sec. (at 0.1 sec. intervals).
• PSU defective
• IOB control board defective
• BICU control board defective
555 Fusing lamp error
After the start of the warmup cycle, a fusing lamp was at full power for 1.8 seconds but the hot roller did not turn.
• Thermistor bent, out of position
• Fusing lamp disconnected
• Circuit breaker opened
557 Zero cross signal error
High frequency noise was detected on the power line.
• No action required. The SC code is logged and the operation of the machine is not affected.
559 Fusing jam: 3 counts
At the fusing exit sensor the paper was detected late for three pulse counts (lag error), and SP1159 was on.
This SC only occurs if SP1159 is on, and a jam occurred in the fusing unit for three consecutive sheets of paper. Remove the paper that is jammed in the fusing unit. Then make sure that the fusing unit is clean and has no obstacles in the paper feed path.
569 Fusing pressure release motor error
During copying, the HP sensor could not detect the actuator, tried again 3 times and could not detect.
• Motor lock because of too much load 
• Motor driver defective 
• HP sensor defective, disconnected, connector defective, harness damaged
590 Toner collection motor error
The toner collection motor sensor output does not change for 3 seconds while the toner collection motor is on.
• Motor lock due to obstruction 
• Motor driver board defective 
• Motor connection loose, defective 
• Toner collection motor sensor disconnected, sensor defective 
• Rotational transmission shaft (o6 x 30) missing
599 1-bin Exit Motor Error (Japan Only)
The transport lock sensor output does not change within 300 ms after the motor switches on.
• Motor overload 
• Motor driver defective
610 BICU - ADF communication/timeout abnormal
After 1 data frame is sent to the ADF, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• Serial line connection unstable 
• External noise on the line
611 BICU - ADF communication/break reception abnormal
During communication a break (Low) signal was received from the ADF.
• Serial line connection unstable 
• Harness disconnected or defective
612 BICU - ADF communication/command abnormal
A command that cannot be executed was sent from the main machine to the ADF.
• A software error, result of an abnormal procedure.
620 BICU - ADF communication/timeout error
After 1 data frame is sent to the finisher MBX, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• Serial line connection unstable
• External noise on the line
621 BICU - Finisher communication/break error
During communication with the finisher MBX, the BICU received a break (Low) signal from the finisher.
• Serial line connection unstable
• External noise on the line
623 BICU - Tray 1~4 communication/timeout error
After 1 data frame is sent to the trays, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• Serial line connection unstable
• External noise on the line
624 BICU - Tray 1~4 communication/break reception error
During communication with the finisher trays, the BICU received a break (Low) signal.
• Serial line connection unstable
• External noise on the line
626 BICU - LCT communication/timeout error
After 1 data frame is sent to the LCT, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• Serial line connection unstable
• External noise on the line
627 BICU - LCT communication/break reception error
During communication with the LCT, the BICU received a break (Low) signal.
• Serial line connection unstable
• External noise on the line
650 NRS Modem Communication Error
One of the following factors could be the cause of this error: 
• In the User Tools, check the settings for the dial-up user name and dial up password. 
• Modem has been disconnected. 
• Modem board disconnected
Check the following for a machine that is using Cumin (NRS modem): 
• An error was returned during the dialup connection 
• A network was detected at startup 
• At startup the machine detected that the NIB was disabled, or did not detect a modem board
651 Illegal Remote Service Dial-up
An expected error occurred when Cumin-M dialed up the NRS Center
• Software bug
• No action is required because only the count is logged
670 Engine startup error
The machine engine, controlled by the BICU (Base Image Control Unit), was operating incorrectly when the machine was switched on or returned to normal operation from the energy save mode.
• Check the connections between BICU and controller
• BICU defective
• Controller board defective
• PSU defective
672 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
700 ADF original pick-up error 1
Pick-up roller HP sensor signal does not change after the pick-up motor has turned on.
• Pick-up roller HP sensor defective
• Pick-up motor defective
• Timing belt slipping, out of position
• ADF main board defective
701 ADF bottom plate motor error
• Bottom plate position sensor does not detect the plate after the bottom plate lift motor switches on to lift the plate. 
• Bottom plate HP sensor does not detect the plate after the bottom plate motor reverses to lower the plate.
• Bottom plate position sensor defective
• Bottom plate HP sensor defective
• Bottom plate motor defective
• ADF main board defective
824 Self-diagnostic error 4: NVRAM
NVRAM device does not exist, NVRAM device is damaged, NVRAM socket damaged
• NVRAM defective
• Controller board defective
• NVRAM backup battery exhausted
• NVRAM socket damaged
826 Self-diagnostic error 6: NVRAM (option NVRAM)  
828 Self-diagnostic error 7: ROM
• Measuring the CRC for the boot monitor and operating system program results in an error. 
• A check of the CRC value for ROMFS of the entire ROM area results in an error
• Software defective
• Controller board defective
• ROM defective
860 HDD startup error at main power on
• HDD is connected but a driver error is detected. 
• The driver does not respond with the status of the HDD within 30 s.
• HDD is not initialized
• Level data is corrupted
• HDD is defective
861 HDD re-try failure
At power on with the HDD detected, power supply to the HDD is interrupted, after the HDD is awakened from the sleep mode, the HDD is not ready within 30 s.
• Harness between HDD and board disconnected, defective
• HDD power connector disconnected
• HDD defective
• Controller board defective
863 HDD data read failure
The data written to the HDD cannot be read normally, due to bad sectors generated during operation
• HDD defective 
Note: If the bad sectors are generated at the image partition, the bad sector information is written to NVRAM, and the next time the HDD is accessed, these bad sectors will not be accessed for read/write operation.
864 HDD data CRC error
During HDD operation, the HDD cannot respond to an CRC error query. Data transfer did not execute normally while data was being written to the HDD.
• HDD defective
865 HDD access error
HDD responded to an error during operation for a condition other than those for SC863, 864.
• HDD defective
866 SC card error 1: Confirmation
The machine detects an electronic license error in the application on the SD card in the controller slot immediately after the machine is turned on. The program 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 shows that the license data in the program on the SD card is incorrect, then the checked program cannot execute and this SC code is displayed.
• Program missing from the SD card
• Download the correct program for the machine to the SD card
867 SD card error 2: SD card removed
The SD card in the boot slot when the machine was turned on was removed while the machine was on.
• Insert the SD card, then turn the machine off and on.
868 SD card error 3: SC card access
An error occurred while an SD card was used.
• SD card not inserted correctly 
• SD card defective 
• Controller board defective 
Note: If you want to try to reformat the SC card, use SD Formatter Ver 1.1
 
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