Máy Photocopy Ricoh Aficio MPC6501/ MPC7501

Máy Photocopy kỹ thuật số, Laser màu.

Chức năng: Copy màu + In mạng màu + Scan màu qua mạng.

Chức năng đảo 2 mặt bản sao tự động.

Bộ nạp và đảo 2 mặt bản gốc tự động (ARDF)

Khổ giấy sao chụp tối đa: A3

Tốc độ sao chụp/ in: 75 bản/phút

Code: 792-14
Description:50/100 clamp adjustment error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• 50/100 adjustment motor (M702) connector loose, broken, defective • Motor overload • Motor defective • Ring switch HP sensor (S706) connector loose, broken, defective, or sensor defective • Ring switch timing sensor (S707) connector loose, broken, defective, or sensor defective

Code: 792-19
Description:Output belt unit rotation error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 800 pulses) (1st detection, jam, 2nd detection, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 2300 pulses) (1st detection, jam, 2nd detection, SC error)
Causes:• Output belt rotation motor (M403) connector loose, broken, defective • Motor overload • Motor defective • Output belt rotation HP sensor (S403) connector loose, broken, defective • Sensor defective

Code: SC101
Description:Exposure lamp error
The white level peak did not reach the prescribed threshold when the white plate was scanned.
Causes:• Dirty optics • Dirty white plate • Exposure lamp defective • Exposure lamp does not turn on • Lamp stabilizer defective • High voltage line leak • SIB defective • SBU defective

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:• Scanner motor defective • Scanner HP sensor defective • Harness between scanner motor and SIOB disconnected or broken. • SIOB defective

Code: SC121
Description:Scanner home position error 2
The scanner home position sensor did not go ON after the scanner moved forward 6 mm and the feeler entered the HP sensor.
Causes:• Scanner motor harness loose, broken, defective • Scanner motor defective • Scanner HP sensor disconnected, defective • SIOB defective

Code: SC141
Description:Black level detection error
During AGC the value for black level was not within ±3 of the prescribed value.
Causes:• SBU defective • Harness defective • Check harnesses between SBU and IPU • IPU defective • VBCU defective

Code: SC142
Description:White level detection error
During AGC the value for white level was not within -7 of the prescribed value.
Causes:• Exposure lamp defective • Harness disconnected, damaged • Dirty exposure glass, optics • Scanner motor, drive assembly defective • SBU board defective

Code: SC144
Description:SBU communication error
When the machine is switched on, or when the machine returns to full operation from the energy save mode, the machine can not access the SBU register, or the SBU register values are abnormal. Note: The ASIC IDs read during automatic adjustment of the SBU can be displayed with SP4600.
Causes:• SBU harness loose, disconnected, defective • SBU board defective • VBCU defective

Code: SC161
Description:IPU error
Communication error between IPU, SBU, and VBCU.
Causes:• Check harness connections between SBU and IPU/VBCU • IPU defective • VBCU defective

Code: SC161-1
Description:An error occurred when the ASIC executed a self-diagnostic report on the BICU.
Causes:• Defective BICU • Defective connection between BICU and SBU

Code: SC161-2
Description:The machine detects an error during an access to the Ri.
Causes:• Defective BICU board

Code: SC161-3
Description:The IPU fails to configure or initialize the DRAM.
Causes:• Defective BICU board

Code: SC165
Description:Illegal Copy Prevention Error
An abnormality was detected with the ICIB board at power on.
Causes:• ICIB connected incorrectly • ICIB defective

Code: SC180
Description:Scanner fan lock The fan motor next to the SIOB did not switch on within 10 sec. after the CPU issued the ON signal.
Causes:• Fan defective • Foreign object interfering with operation of fan • Motor harness loose, disconnected, or broken • SIOB defective

Code: SC181
Description:Scanner Fan Error: Lamp Stabilizer
The exposure lamp regulator fan is not rotating.
Causes:• Check the fan connections • Fan defective • Check SBU connection • Check SIOB connection • SBU defective • SIOB defective

Code: SC182
Description:Scanner Fan Error: Right Side
The fan located on the right side of the exposure unit is not rotating.
Causes:• Check the fan connections • Fan defective • Check SBU connection • Check SIOB connection • SBU defective • SIOB defective

Code: SC185
Description:CIS communication error Error
caused during ASIC register's automatic initialization on the CIS, or during transmission between the CIS - DF.
Causes:• Harness between the CIS - DF is disconnected • CIS defectiver

Code: SC186
Description:CIS LED error
LED on the CIS caused an error • During initializing, the ratio of the average between leading-edge area and rear-edge is out of range (0.7 to 1.43). • During scanning, the shading data peak is under 32 (8 bit).
Causes:• Harness CN210 and CN220 on ADF are disconnected. • Replace CIS.

Code: SC187
Description:CIS black level error
The black level scanned by CIS is abnormal. The black level average of R, G or B is not within range (2 to 62). 0 < Calibrated Black data level < 255(10bit).
Causes:• Turn off the machine. • Make sure CN210 and CN220 are connected securely. • Turn on the machine.

Code: SC188
Description:CIS white level error
The shading data peak detected from the CIS is abnormal.
Causes:• CIS defective

Code: SC189
Description:CIS gray balance adjustment error The adjustment error occurs during the test after adjusting the gray balance
Causes:• CIS defective

Code: SC195
Description:Machine serial number error
The number registered for the machine serial number does not match.
Causes:• Confirm the correct serial number of the machine in the specifications • Important: When SC195 occurs, the serial number must be input. Please contact your technical supervisor.

Code: SC202
Description:Polygon motor error: ON timeout
The polygon mirror motor does not reach the targeted operating speed within the prescribed time
Causes:• Harness to polygon motor drive board disconnected, defective • Polygon motor defective • Polygon motor drive board defective • Polygon motor defective.

Code: SC203
Description:Polygon motor error: OFF timeout
The polygon mirror motor does leave the READY status within 3 seconds after the polygon motor switches off.
Causes:• Harness to polygon motor driver board disconnected, defective • Polygon motor defective • Polygon motor driver board defective • Polygon motor defective.

Code: SC204
Description:Polygon motor error: XSCRDY signal error
The polygon motor stopped operating while the LD unit was firing.
Causes:• Harness to polygon motor driver board disconnected, defective • Polygon motor defective • Polygon motor driver board defective

Code: SC210
Description:Laser beam detection error: K (Black)
The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
Causes:• Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

Code: SC211
Description:Laser beam detection error: Y (Yellow)
The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
Causes:• Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

Code: SC212
Description:Laser beam detection error: M (Magenta)
The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
Causes:• Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

Code: SC213
Description:Laser beam detection error: C (Cyan)
The laser synchronization sensor failed to detect the beginning and end of the laser beam flash for the designated color onto the polygon mirror while the mirror is rotating at the prescribed number of revolutions.
Causes:• Laser synchronization detector sensor connection loose, not connected • Laser synchronization detector sensor defective • LD unit defective • IPU defective • VBCU defective

Code: SC220
Description:Laser Synchronization Detector Error: K Leading Edge: LD0
While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 black, or leading edge, even after the laser diode has been firing for 2 sec.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC221
Description:Laser Synchronization Detector Error: K Leading Edge (Not LD0)
While the polygon motor is rotating normally, no synchronizing detection signal is output for black, leading edge for any LD other than LD0.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC222
Description:Laser Synchronization Detector Error: Y Leading Edge: LD0
While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 yellow, leading edge.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC223
Description:Laser Synchronization Detector Error: Y Leading Edge (Not LD0)
While the polygon motor is rotating normally, no synchronizing detection signal is output for yellow, leading edge for any LD other than LD0.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC224
Description:Laser Synchronization Detector Error: M Leading Edge: LD0
While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 magenta, leading edge.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC225
Description:Laser Synchronization Detector Error: M Leading Edge (Not LD0)
While the polygon motor is rotating normally, no synchronizing detection signal is output for magenta, leading edge for any LD other than LD0.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC226
Description:Laser Synchronization Detector Error: C Leading Edge: LD0
While the polygon motor is rotating normally, no synchronizing detection signal is output for LD0 cyan, leading edge.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC227
Description:Laser Synchronization Detector Error: C Leading Edge (Not LD0)
While the polygon motor is rotating normally, no synchronizing detection signal is output for cyan, leading edgefor any LD other than LD0.
Causes:• Harness between the laser synchronizing detector and I/F unit is disconnected, defective • Check all connections between LD unit, LDB, IPU • LD unit • LDB defective • IPU defective

Code: SC230
Description:FGATE error: Feedback remains HIGH for K write
After the start of timing to create the black image, the PFGATE register of the GAVD did not assert
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC231
Description:FGATE error: Feedback remains LOW for K write
After the start of timing to create the black image, the PFGATE register of the GAVD did not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC232
Description:FGATE error: Feedback remains HIGH for Y write
After the start of timing to create the yellow image, the PFGATE register of the GAVD did not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC233
Description:FGATE error: Feedback remains LOW for Y write
After the start of timing to create the yellow image, the PFGATE register of the GAVD did not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC234
Description:FGATE error 1: Feedback remains HIGH for M write
After the start of timing to create the magenta image, the PFGATE register of the GAVD did not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC235
Description:FGATE error: Feedback remains LOW for M write
After the start of timing to create the magenta image, the PFGATE register of the GAVD does not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC236
Description:FGATE error 1: Feedback remains HIGH for C write
After the start of timing to create the cyan image, the PFGATE register of the GAVD did not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC237
Description:FGATE error: Feedback remains LOW for C write
After the start of timing to create the cyan image, the PFGATE register of the GAVD does not assert.
Causes:• Harness between the VBCU and LDB unit disconnected, loose, or defective. • LD unit defective • IPU defective • Controller board disconnected, defective • HDD defective

Code: SC240
Description:LD error: K
An error occurred at the LD error terminal of the K, Y, M, or C LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
Causes:• LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

Code: SC241
Description:LD error: Y
An error occurred at the LD error terminal of the K, Y, M, or C LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
Causes:• LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

Code: SC242
Description:LD error: M
An error occurred at the LD error terminal of the K, Y, M, or C LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
Causes:• LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

Code: SC243
Description:LD error: C
An error occurred at the LD error terminal of the K, Y, M, or C LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
Causes:• LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

Code: SC268
Description:Optical unit sensor error
At power on, one of the two temperature sensors in the optics unit detected a temperature lower than -10°C. -or- It detected a temperature higher than 80°C.
Causes:• Thermistor disconnected (causes extremely low temperature reading) • Thermistor damaged and short circuited (causes extremely high temperature reading) • VBCU defective

Code: SC270
Description:Skew Control Upper Lower Limit: Y
The pulse total for Yellow skew control is not within the prescribed range.
Causes:• ITB not installed correctly. • ITB defective • Optical unit installed incorrectly • Optical unit defective

Code: SC271
Description:Skew Control Upper Lower Limit: M
The pulse total for Magenta skew control is not within the prescribed range.
Causes:• ITB not installed correctly. • ITB defective • Optical unit installed incorrectly • Optical unit defective

Code: SC272
Description:Skew Control Upper Lower Limit: C
The pulse total for Cyan skew control is not within the prescribed range.
Causes:• ITB not installed correctly. • ITB defective • Optical unit installed incorrectly • Optical unit defective

Code: SC285
Description:MUSIC Continuous Failure
The MUSIC adjustment failed after four attempts.
Causes:• Fusing belt installed incorrectly • Fusing belt surface scoured, scratched • MUSIC sensors dirty, defective

Code: SC300
Description:Drum charge corona wire error: K
The output of the charge corona wire of the black PCU is abnormal.
Causes:• CGB power pack connection loose, broken defective • Check CGB power pack connection to BCU • CGB power pack defective • BCU defective • Replace OPC drum

Code: SC301
Description:AC charge output error: M
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the AC charge for M, C, Y.
Causes:• Disconnect the high voltage cable from Terminal C of the multiple high-voltage supply board. • Attach a voltmeter to the terminal. • 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 high-voltage harness for defects and replace it if necessary. • 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. • If there is no charge PWM signal, replace the harness and/or VBCU.

Code: SC302
Description:AC charge output error: C
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the AC charge for M, C, Y.
Causes:• Disconnect the high voltage cable from Terminal C of the multiple high-voltage supply board. • Attach a voltmeter to the terminal. • 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 high-voltage harness for defects and replace it if necessary. • 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. • If there is no charge PWM signal, replace the harness and/or VBCU.

Code: SC303
Description:AC charge output error: Y
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the AC charge for M, C, Y.
Causes:• Disconnect the high voltage cable from Terminal C of the multiple high-voltage supply board. • Attach a voltmeter to the terminal. • 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 high-voltage harness for defects and replace it if necessary. • 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. • If there is no charge PWM signal, replace the harness and/or VBCU.

Code: SC304
Description:Charge Corona Error: Charge Leak (K PCU)
A abnormal detection signal (H) was detected for longer than 250 ms.
Causes:• Turn the machine power off/on • CGB power pack harness connectors loose, broken, defective • Corona wire caps loose, missing • CGB power pack defective • Charge corona unit connectors loose, broken, defective

Code: SC308
Description:Charge Corona Error: Wire Cleaner Error (K PCU)
The charge corona wire cleaner motor remained locked after the motor was switched on, or failed to switch off within the prescribed time after cleaning started.
Causes:• Turn the machine power off/on • Motor overloaded due to a physical obstruction • Motor defective

Code: SC313
Description:Charge, development error: M
After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
Causes:• Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

Code: SC314
Description:Charge, development error: C
After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
Causes:• Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

Code: SC315
Description:Charge, development error: Y
After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
Causes:• Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

Code: SC316
Description:Drum Charge Error: K
Drum charge output voltage (Vpp) exceeded 2.8 kV.
Causes:• Check the connections of the charge unit of the PCU where the problem occurred. • Replace the charge unit of the PCU (CBG power pack for the K PCU, charge roller unit for YMC PCUs)

Code: SC317
Description:Drum Charge Error: M
Drum charge output voltage (Vpp) exceeded 2.8 kV.
Causes:• Check the connections of the charge unit of the PCU where the problem occurred. • Replace the charge unit of the PCU (CBG power pack for the K PCU, charge roller unit for YMC PCUs)

Code: SC318
Description:Drum Charge Error: C
Drum charge output voltage (Vpp) exceeded 2.8 kV.
Causes:• Check the connections of the charge unit of the PCU where the problem occurred. • Replace the charge unit of the PCU (CBG power pack for the K PCU, charge roller unit for YMC PCUs)

Code: SC319
Description:Drum Charge Error: Y
Drum charge output voltage (Vpp) exceeded 2.8 kV.
Causes:• Check the connections of the charge unit of the PCU where the problem occurred. • Replace the charge unit of the PCU (CBG power pack for the K PCU, charge roller unit for YMC PCUs)

Code: SC320
Description:Development power pack error: K
This SC is issued if the VBCU detects a short in the development DC charge for K, M, C, Y.
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

Code: SC321
Description:Development power pack error: M
This SC is issued if the VBCU detects a short in the development DC charge for K, M, C, Y.
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

Code: SC322
Description:Development power pack error: C
This SC is issued if the VBCU detects a short in the development DC charge for K, M, C, Y.
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

Code: SC323
Description:Development power pack error: Y
This SC is issued if the VBCU detects a short in the development DC charge for K, M, C, Y.
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

Code: SC324
Description:Development motor error: K
The PLL lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, development motor.
Causes:• Development motor shaft locked, blocked by obstruction • Development motor defective • DRB defective

Code: SC325
Description:Development motor error: M
The PLL lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, development motor.
Causes:• Development motor shaft locked, blocked by obstruction • Development motor defective • DRB defective

Code: SC326
Description:Development motor error: C
The PLL lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, development motor.
Causes:• Development motor shaft locked, blocked by obstruction • Development motor defective • DRB defective

Code: SC327
Description:Development motor error: Y
The PLL lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, development motor.
Causes:• Development motor shaft locked, blocked by obstruction • Development motor defective • DRB defective

Code: SC336
Description:Developer set error: K
The value of Vcnt is set at the maximum or minimum setting when the TD sensor is initialized.
Causes:1. Open the front door. 2. Pull out the film seal from the black, magenta, cyan, or yellow developer bottle. 3. Do the correct SP for the affected color: • SP3801 003 to initialize the TD sensor for K. • SP3801 004 to initialize the TD sensor for M. • SP3801 005 to initialize the TD sensor for C. • SP3801 006 to initialize the TD sensor for Y

Code: SC337
Description:Developer set error: M
The value of Vcnt is set at the maximum or minimum setting when the TD sensor is initialized.
Causes:1. Open the front door. 2. Pull out the film seal from the black, magenta, cyan, or yellow developer bottle. 3. Do the correct SP for the affected color: • SP3801 003 to initialize the TD sensor for K. • SP3801 004 to initialize the TD sensor for M. • SP3801 005 to initialize the TD sensor for C. • SP3801 006 to initialize the TD sensor for Y

Code: SC338
Description:Developer set error: C
The value of Vcnt is set at the maximum or minimum setting when the TD sensor is initialized.
Causes:1. Open the front door. 2. Pull out the film seal from the black, magenta, cyan, or yellow developer bottle. 3. Do the correct SP for the affected color: • SP3801 003 to initialize the TD sensor for K. • SP3801 004 to initialize the TD sensor for M. • SP3801 005 to initialize the TD sensor for C. • SP3801 006 to initialize the TD sensor for Y

Code: SC339
Description:Developer set error: Y
The value of Vcnt is set at the maximum or minimum setting when the TD sensor is initialized.
Causes:1. Open the front door. 2. Pull out the film seal from the black, magenta, cyan, or yellow developer bottle. 3. Do the correct SP for the affected color: • SP3801 003 to initialize the TD sensor for K. • SP3801 004 to initialize the TD sensor for M. • SP3801 005 to initialize the TD sensor for C. • SP3801 006 to initialize the TD sensor for Y

Code: SC348
Description:Toner supply motor error
2 sec. after the motor START signal is output, a LOCK signal cannot be detected.
Causes:• Motor harness disconnected, loose, or defective • Toner pump overload • Sub hopper overload • Toner hopper motor defective

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.

Code: SC351
Description:Developer Fill Error: M
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.

Code: SC352
Description:Developer Fill Error: C
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.

Code: SC353
Description:Developer Fill Error: Y
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.

Code: SC356
Description:Toner Supply Error 1: K
The machine detected 10 times that the amount of toner applied to create the black ID sensor pattern on the drum between sheets (SP3101-1 ID Pattern Display - Applied K) was less than the minimum threshold setting (0.0 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-1 Tnr Supply Time - Sub Hopper CL: K) exceeded the threshold of 65K ms.
Causes:• Toner end sensor cleaning spring broken, mechanism defective • Toner end sensor loose, broken, or defective • Replace toner supply unit

Code: SC357
Description:Toner Supply Error 2: M
The machine detected 10 times that the amount of toner applied to create the magenta ID sensor pattern on the drum between sheets (SP3101-2 ID Pattern Display - Applied M) was less than the minimum threshold setting (0.0 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-2 Tnr Supply Time - Sub Hopper CL: M) exceeded the threshold of 65K ms.
Causes:• Toner end sensor cleaning spring broken, mechanism defective • Toner end sensor loose, broken, or defective • Replace toner supply unit

Code: SC358
Description:Toner Supply Error 3: C The machine detected 10 times that the amount of toner applied to create the cyan ID sensor pattern on the drum between sheets (SP3101-3 ID Pattern Display - Applied C) was less than the minimum threshold setting (0.0 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-3 Tnr Supply Time - Sub Hopper CL: C) exceeded the threshold of 65K ms.
Causes:• Toner end sensor cleaning spring broken, mechanism defective • Toner end sensor loose, broken, or defective • Replace toner supply unit

Code: SC359
Description:Toner Supply Error 4: Y
The machine detected 10 times that the amount of toner applied to create the yellow ID sensor pattern on the drum between sheets (SP3101-4 ID Pattern Display - Applied Y) was less than the minimum threshold setting (0.0 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-4 Tnr Supply Time - Sub Hopper CL: Y) exceeded the threshold of 65K ms.
Causes:• Toner end sensor cleaning spring broken, mechanism defective • Toner end sensor loose, broken, or defective • Replace toner supply unit

Code: SC360
Description:TD sensor (Vt high) error: K
The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 0.5V for 10 counts.
Causes:• Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC361
Description:TD sensor (Vt high) error: M
The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 0.5V for 10 counts.
Causes:• Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC362
Description:TD sensor (Vt high) error: C
The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 0.5V for 10 counts.
Causes:• Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC363
Description:TD sensor (Vt high) error: Y
The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds 0.5V for 10 counts.
Causes:• Black, magenta, cyan, or yellow TD sensor disconnected • Harness between TD sensor and PCU defective • Defective TD sensor, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC364
Description:TD sensor (Vt low) error: K
The Vt value of the black, magenta, cyan, or yellow TD sensor is below 0.5V for 10 counts.
Causes:• TD sensor harness disconnected, loose, defective • A drawer connector (located on the rear of a development unit) disconnected, loose, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC365
Description:TD sensor (Vt low) error: M
The Vt value of the black, magenta, cyan, or yellow TD sensor is below 0.5V for 10 counts.
Causes:• TD sensor harness disconnected, loose, defective • A drawer connector (located on the rear of a development unit) disconnected, loose, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC366
Description:TD sensor (Vt low) error: C
The Vt value of the black, magenta, cyan, or yellow TD sensor is below 0.5V for 10 counts.
Causes:• TD sensor harness disconnected, loose, defective • A drawer connector (located on the rear of a development unit) disconnected, loose, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC367
Description:TD sensor (Vt low) error: Y
The Vt value of the black, magenta, cyan, or yellow TD sensor is below 0.5V for 10 counts.
Causes:• TD sensor harness disconnected, loose, defective • A drawer connector (located on the rear of a development unit) disconnected, loose, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC372
Description:TD sensor adjustment error: K
During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 2.5+-0.2V
Causes:TD harness sensor disconnected, loose or defective Harness between TD sensor and drawer disconnected, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC373
Description:TD sensor adjustment error: M
During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 2.5+-0.2V
Causes:TD harness sensor disconnected, loose or defective Harness between TD sensor and drawer disconnected, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC374
Description:TD sensor adjustment error: C
During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 2.5+-0.2V
Causes:TD harness sensor disconnected, loose or defective Harness between TD sensor and drawer disconnected, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC375
Description:TD sensor adjustment error: Y
During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 2.5+-0.2V
Causes:TD harness sensor disconnected, loose or defective Harness between TD sensor and drawer disconnected, defective • TD sensor defective, replace the PCU Note: The TD sensor cannot be replaced independently. The PCU must be replaced if the TD sensor is defective.

Code: SC396
Description:Drum motor error: K
The motor is trying to rotate at power on or during normal operation but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
Causes:• Drum motor harness loose, broken, defective • Drum motor defective • DTMB defective

Code: SC397
Description:Drum motor error: M
The motor is trying to rotate at power on or during normal operation but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
Causes:• Drum motor harness loose, broken, defective • Drum motor defective • DTMB defective

Code: SC398
Description:Drum motor error: C
The motor is trying to rotate at power on or during normal operation but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
Causes:• Drum motor harness loose, broken, defective • Drum motor defective • DTMB defective

Code: SC399
Description:Drum motor error: Y
The motor is trying to rotate at power on or during normal operation but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
Causes:• Drum motor harness loose, broken, defective • Drum motor defective • DTMB defective

Code: SC400
Description:ID sensor error: Calibration
Before adjustment Vsg_reg<0.5 but Vsg_reg could not be adjusted to the target Vsg_reg = 4.0+-0.2V during process control.
Causes:• ID sensor harness disconnected, loose, defective • ID sensor dirty • ID sensor defective • ITB unit drawer connector dirty

Code: SC402
Description:ID Sensor Pattern Maximum Coverage Error 1: K
The amount of toner applied to create the black ID sensor pattern between sheets (SP3101-1 ID Pattern Display - Applied: K) exceeded the maximum threshold of 0.3 mg/cm2 due to an over supply of black toner.
Causes:K toner supply unit defective

Code: SC403
Description:ID Sensor Pattern Maximum Coverage Error 2: M
The amount of toner applied to create the magenta ID sensor pattern between sheets (SP3101-2 ID Pattern Display - Applied: M) exceeded the maximum threshold of 0.7 mg/cm2 due to an over supply of magenta toner.
Causes:• Magenta toner supply unit defective

Code: SC404
Description:ID Sensor Pattern Maximum Coverage Error 3: C
The amount of toner applied to create the cyan ID sensor pattern between sheets (SP3101-3 ID Pattern Display - Applied: C) exceeded the maximum threshold of 0.7 mg/cm2 due to an over supply of cyan toner.
Causes:• Cyan toner supply unit defective

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

Code: SC406
Description:ID Sensor Pattern Minimum Coverage Error 1: K
The machine detected 10 times that the amount of toner applied to create the black ID sensor pattern on the drum between sheets (SP3101-1 ID Pattern Display - Applied K) was less than the minimum threshold setting (0.0 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-1 Tnr Supply Time - Sub Hopper CL: K) was less than or equal to the threshold of 65K ms.
Causes:• Toner shield glass dirty • Development unit defective • Image transfer unit defective

Code: SC407
Description:ID Sensor Pattern Minimum Coverage Error 2: M
The machine detected 10 times that the amount of toner applied to create the magenta ID sensor pattern on the drum between sheets (SP3101-2 ID Pattern Display - Applied M) was less than the minimum threshold setting (0.2 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-2 Tnr Supply Time - Sub Hopper CL: M) was less than or equal to the threshold of 65K ms.
Causes:• Toner shield glass dirty • Development unit defective • Image transfer unit defective

Code: SC408
Description:ID Sensor Pattern Minimum Coverage Error 3: C
The machine detected 10 times that the amount of toner applied to create the cyan ID sensor pattern on the drum between sheets (SP3101-3 ID Pattern Display - Applied C) was less than the minimum threshold setting (0.2 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-3 Tnr Supply Time - Sub Hopper CL: C) was less than or equal to the threshold of 65K ms.
Causes:• Toner shield glass dirty • Development unit defective • Image transfer unit defective

Code: SC409
Description:ID Sensor Pattern Minimum Coverage Error 4: Y
The machine detected 10 times that the amount of toner applied to create the yellow ID sensor pattern on the drum between sheets (SP3101-4 ID Pattern Display - Applied Y) was less than the minimum threshold setting (0.2 mg/cm2). Also, the total time for the operation of the sub hopper clutch (SP3251-4 Tnr Supply Time - Sub Hopper CL: Y) was less than or equal to the threshold of 65K ms.
Causes:• Toner shield glass dirty • Development unit defective • Image transfer unit defective

Code: SC410
Description:ID sensor error: Development K
Development gamma for black, magenta, cyan, or yellow is not within range (0.3 to 6.0). Process control halts when this SC is issued.
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • LD sensor harness loose, broken, defective • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective)

Code: SC411
Description:ID sensor error: Development M
Development gamma for black, magenta, cyan, or yellow is not within range (0.3 to 6.0). Process control halts when this SC is issued.
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • LD sensor harness loose, broken, defective • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective)

Code: SC412
Description:ID sensor error: Development C
Development gamma for black, magenta, cyan, or yellow is not within range (0.3 to 6.0). Process control halts when this SC is issued.
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • LD sensor harness loose, broken, defective • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective)

Code: SC413
Description:ID sensor error: Development Y
Development gamma for black, magenta, cyan, or yellow is not within range (0.3 to 6.0). Process control halts when this SC is issued.
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • LD sensor harness loose, broken, defective • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective)

Code: SC414
Description:ID sensor error: Development start voltage K
The development start voltage in the development of the black, magenta, cyan, or yellow PCU is not within the correct range (+-150V)
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective

Code: SC415
Description:ID sensor error: Development start voltage M
The development start voltage in the development of the black, magenta, cyan, or yellow PCU is not within the correct range (+-150V)
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective

Code: SC416
Description:ID sensor error: Development start voltage C
The development start voltage in the development of the black, magenta, cyan, or yellow PCU is not within the correct range (+-150V)
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective

Code: SC417
Description:ID sensor error: Development start voltage Y
The development start voltage in the development of the black, magenta, cyan, or yellow PCU is not within the correct range (+-150V)
Causes:• Toner density abnormal. Refer to the image troubleshooting section in Section 4 of the Venus-C1 B132 Service Manual (Self-Check Error Codes 55 to 59, 61). • Potential sensor defective • LD unit not firing • ITB separation for CMY abnormal • Transfer power pack defective

Code: SC418
Description:LED error during Vsg adjustment
PWM value: Ifsg>3000 This means the current to the LED of the ID sensor is abnormal.
Causes:• ID sensor dirty • ID sensor defective

Code: SC420
Description:Potential sensor error: Vd Adjustment K
The development potential of the drum before exposure (Vd) cannot be adjusted to within +-8 V of the target voltage (-900V).
Causes:• Drum potential sensor harness, connector is loose, broken, defective • Drum potential sensor dirty • Drum potential sensor defective • Drum connector, harness loose, broken, defective • Development power pack defective • VBCU defective

Code: SC421
Description:Potential sensor error: Vd Adjustment K
The development potential of the drum before exposure (Vd) cannot be adjusted to within +-8 V of the target voltage (-900V).
Causes:• Drum potential sensor harness, connector is loose, broken, defective • Drum potential sensor dirty • Drum potential sensor defective • Drum connector, harness loose, broken, defective • Development power pack defective • VBCU defective

Code: SC422
Description:Potential sensor error: Vd Adjustment M
The development potential of the drum before exposure (Vd) cannot be adjusted to within +-8 V of the target voltage (-900V).
Causes:• Drum potential sensor harness, connector is loose, broken, defective • Drum potential sensor dirty • Drum potential sensor defective • Drum connector, harness loose, broken, defective • Development power pack defective • VBCU defective

Code: SC423
Description:Potential sensor error: Vd Adjustment C
The development potential of the drum before exposure (Vd) cannot be adjusted to within +-8 V of the target voltage (-900V).
Causes:• Drum potential sensor harness, connector is loose, broken, defective • Drum potential sensor dirty • Drum potential sensor defective • Drum connector, harness loose, broken, defective • Development power pack defective • VBCU defective

Code: SC423
Description:Potential sensor error: Vd Adjustment Y
The development potential of the drum before exposure (Vd) cannot be adjusted to within +-8 V of the target voltage (-900V).
Causes:• Drum potential sensor harness, connector is loose, broken, defective • Drum potential sensor dirty • Drum potential sensor defective • Drum connector, harness loose, broken, defective • Development power pack defective • VBCU defective

Code: SC424
Description:Potential sensor error 5: Vl adjustment K
Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
Causes:• Drum worn • LD unit dirty • Poor drum ground connection

Code: SC425
Description:Potential sensor error 6: Vl adjustment M
Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
Causes:• Drum worn • LD unit dirty • Poor drum ground connection

Code: SC426
Description:Potential sensor error 7: Vl adjustment C
Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
Causes:• Drum worn • LD unit dirty • Poor drum ground connection

Code: SC427
Description:Potential sensor error 8: Vl adjustment Y
Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
Causes:• Drum worn • LD unit dirty • Poor drum ground connection

Code: SC432
Description:Potential sensor error 1: Vr K
Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC433
Description:Potential sensor error 2: Vr M
Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC434
Description:Potential sensor error 3: Vr C
Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC435
Description:Potential sensor error 4: Vr Y
Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC436
Description:Potential sensor error: Vd K
The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC437
Description:Potential sensor error: Vd M
The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC438
Description:Potential sensor error: Vd C
The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC439
Description:Potential sensor error: Vd Y
The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
Causes:• Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

Code: SC440
Description:Image transfer power pack error: K
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
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

Code: SC441
Description:Image transfer power pack error: M
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
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

Code: SC442
Description:Image transfer power pack error: C
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
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

Code: SC443
Description:Image transfer power pack error: Y
An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
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

Code: SC445
Description:Image transfer motor error
The control board of the ITB motor belt generated signals that indicate there is problem with the image transfer belt motor.
Causes:• ITB motor defective • ITB control board defective • ITB overloaded • Encoder strip on the edge of the ITB damaged.

Code: SC446
Description:ITB lift motor error
The state of the ITB lift sensor does not change its state (switching from off to on or vice versa), even after the ITB lift motor starts rotating.
Causes:• ITB lift sensor dirty, disconnected, defective • ITB lift motor disconnected, defective • ITB sensor defective • ITB lift motor defective

Code: SC447
Description:Image transfer roller position error
The machine checks for the presence of the K STC and the checks the status of the K image transfer roller lift sensor after the door is closed.
Causes:• Transfer belt release lever down • Lift sensor connector loose, broken, dirty • Lift sensor defective

Code: SC450
Description:Transfer power pack output error
An interrupt checks the status of the power pack every 2 ms. This SC is issued if the VBCU detects a short in the power pack 250 times at T2 within 500 ms.
Causes:• Damaged insulation on the high-voltage supply cable • Damaged insulation around the highvoltage power supply. • Check SIOB harness connections • SIOB defective

Code: SC452
Description:PTR lift mechanism error
The PTR was not detected at the home position within 2 sec. after the PTR lift motor turned on.
Causes:• PTR HP sensor dirty, disconnected, defective • PTR lift motor disconnected, defective

Code: SC455
Description:PTR motor error
The lock signal from the paper transfer motor was not detected within 1 sec. after the motor switched on.
Causes:• Motor disconnected • PTR shaft locked, needs cleaning, blocked by obstruction • Drive shaft of the ITB locked and overloaded, needs cleaning, or blocked by obstruction • DRB disconnected, defective

Code: SC460
Description:Separation power pack output error
This SC is issued if the VBCU detects a short in the transfer power pack.
Causes:• Damaged insulation on the high-voltage supply cable (replace cable) • Damaged insulation around the transfer power pack

Code: SC465
Description:Image Transfer Roller End: K
The machine detected an abnormal reading of the resistance of the transfer roller because it is near the end of its service life.
Causes:• Check the connections between the transfer roller power pack the roller • Replace image transfer roller • Image transfer power pack defective

Code: SC466
Description:Image Transfer Roller End: M
The machine detected an abnormal reading of the resistance of the transfer roller because it is near the end of its service life.
Causes:• Check the connections between the transfer roller power pack the roller • Replace image transfer roller • Image transfer power pack defective

Code: SC467
Description:Image Transfer Roller End: C
The machine detected an abnormal reading of the resistance of the transfer roller because it is near the end of its service life.
Causes:• Check the connections between the transfer roller power pack the roller • Replace image transfer roller • Image transfer power pack defective

Code: SC468
Description:Image Transfer Roller End: Y
The machine detected an abnormal reading of the resistance of the transfer roller because it is near the end of its service life.
Causes:• Check the connections between the transfer roller power pack the roller • Replace image transfer roller • Image transfer power pack defective

Code: SC472
Description:ITB Bias Roller End
The machine detected an abnormal reading of the resistance of the ITB bias roller because it is near the end of its service life.
Causes:• Check the connections between the transfer power pack • Replace image transfer roller • Transfer power pack defective

Code: SC480
Description:Drum cleaning motor error: K
The drum cleaning motor failed to switch on (motor lock), or failed to reach the required speed within the prescribed time.
Causes:• Motor block by physical obstruction • Motor harness loose, broken, defective • Motor defective

Code: SC481
Description:Drum cleaning motor error: M
The drum cleaning motor failed to switch on (motor lock), or failed to reach the required speed within the prescribed time.
Causes:• Motor block by physical obstruction • Motor harness loose, broken, defective • Motor defective

Code: SC482
Description:Drum cleaning motor error: C
The drum cleaning motor failed to switch on (motor lock), or failed to reach the required speed within the prescribed time.
Causes:• Motor block by physical obstruction • Motor harness loose, broken, defective • Motor defective

Code: SC483
Description:Drum cleaning motor error: Y
The drum cleaning motor failed to switch on (motor lock), or failed to reach the required speed within the prescribed time.
Causes:• Motor block by physical obstruction • Motor harness loose, broken, defective • Motor defective

Code: SC484
Description:Used toner bottle full
The toner full sensor has detected that the used toner bottle is full.
Causes:• Remove the used toner bottle • Empty the used toner bottle and reinstall it

Code: SC485
Description:Used toner bottle motor error
The lock signal of the used toner bottle motor remains HIGH for more than 600 ms.
Causes:• Used toner bottle harness loose, broken, defective • Used toner bottle motor defective

Code: SC487
Description:Used toner bottle set error
The set sensor of the used toner bottle remains LOW for more than 500 ms. (The sensor goes HIGH when the bottle is installed correctly.)
Causes:• Used toner bottle not installed • Remove used toner bottle and reinstall correctly

Code: SC488
Description:Used toner transport lock
Used toner cannot be transported to the used toner bottle.
Causes:• Blockage in the line to the used toner bottle

Code: SC490
Description:MUSIC sensor error
One or more of the MUSIC sensors is not functioning normally.
Causes:• MUSIC sensor harness loose, broken, defective • Sensor defective

Code: SC495
Description:ITB encoder sensor error
The ITB encoder sensor that reads the encoded strip on the ITB is not functioning properly.
Causes:• Sensor dirty • Sensor harness loose, broken, defective • Sensor out of position because installed incorrectly • ITB installed incorrectly

Code: SC496
Description:MUSIC sensor error
The MUSIC sensor detected an abnormal pattern on the ITB because: • ADC exceeded upper or lower limit. • The pattern used to calculate the amount of skew is abnormal. • The reading of the pattern exceeded the length of time the LED projected light. • LED light could not be adjusted correctly.
Causes:• ITB installed incorrectly • Inspect ITB belt for damage, replace • MUSIC pattern abnormal; do a forced process control (SP3821) and check the result. • MUSIC sensor defective or disconnected

Code: SC497
Description:Temperature and humidity sensor error: M PCU
The thermistor output of the temperature and humidity sensor above the M PCU was not within the prescribed range (0.5V to 4.2V)
Causes:• Temperature and humidity sensor harness disconnected, loose, defective • Temperature and humidity sensor defective

Code: SC498
Description:Temperature and humidity sensor error: Toner Bottle
The thermistor output of the temperature and humidity sensor below the used toner bottle was not within the prescribed range (0.5V to 4.2V)
Causes:• Temperature and humidity sensor harness disconnected, loose, defective • Temperature and humidity sensor defective

Code: SC499
Description:ITB encoder sensor error The ITB sensor that reads the encoded film strip on the edge of the image transfer belt is sending is operating correctly.
Causes:• ITB encoder sensor dirty • Sensor harness disconnected or damaged • Encoded scale on the edge of the ITB is damaged or dirty • ITB installed incorrectly

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

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

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

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

Code: SC505
Description:Tandem tray rear fence motor error
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.
Causes:• 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

Code: SC510
Description:LCT tray error: B473/D350
When the bottom plate is lifted, the upper limit sensor does not come on for 30 sec. When the bottom plate is lowered, the lower limit sensor does not come on for 30 sec. 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.
Causes:• Tray lift motor harness, disconnected, loose, or defective • Tray lift motor defective • Lift sensor defective or disconnected • Pick-up solenoid defective or disconnected • Paper end sensor defective

Code: SC515
Description:Duplex jogger motor error 1
When the jogger fence moves to the home position, the jogger fence HP sensor does not switch on even after the jogger motor has moved the jogger fence 153.5 mm.
Causes:• Jogger fence motor defective or poor connection • Paper or other obstacle interfering with operation of the sensors or motor • Return sensor or HP sensor defective, dirty, or disconnected • Paper or other obstacle has jammed mechanism • HP sensor connector disconnected or defective • HP sensor defective

Code: SC516
Description: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.
Causes:• Jogger fence motor defective or poor connection • Paper or other obstacle interfering with operation of the sensors or motor • Return sensor or HP sensor defective, dirty, or disconnected • Paper or other obstacle has jammed mechanism • HP sensor connector disconnected or defective • HP sensor defective

Code: SC517
Description:LCIT air assist front fan error
The front air assist fan is not functioning properly.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged, defective

Code: SC518
Description:LCIT air assist rear fan error
The rear air assist fan is not functioning properly.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged, defective

Code: SC530
Description:Fusing cooling fan error
The VBCU did not receive the lock signal 5 seconds after the fusing unit fan switches on.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC531
Description:Fusing Fan Error: Front
The lock signal remained HIGH for 5 sec. while the fan at the front of the fusing unit near the heat dissipation fins was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC532
Description:Controller fan error
The lock signal remained HIGH for 5 sec. while the fan that cools the printed circuit boards was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC533
Description:Fusing unit suction fan error
The lock signal remained HIGH for 5 sec. while the fan that draws air out of the fusing unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC533-1
Description:Fusing exit fan error
The machine detected a fan lock signal 5 times at 1 sec. intervals. This indicates that the fan is not operating and the machine stops.
Causes:• Fan connection loose, broken, defective • Fan is blocked by an obstruction • Fan motor is defective

Code: SC534
Description:Duplex unit fan error
The lock signal remained HIGH for 5 sec. while the fan that draws air out of the duplex unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC535
Description:Development Intake Fan Error
The lock signal remained HIGH for 5 sec. while the fan in the Y development unit was operating
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC536
Description:Development Intake Fan Error: Y
The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC537
Description:Development Intake Fan Error: C
The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC538
Description:Development Intake Fan Error: M
The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC539
Description:Development Intake Fan Error: K
The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
Causes:• Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

Code: SC540
Description:Fusing/exit motor error
Motor operation was detected abnormal at power on.
Causes:• Check inside the fusing unit for any obstructions • Motor harness loose, broken, defective • Motor or its driver board defective

Code: SC541
Description:Heating roller thermistor (center) error 1
The "floating" (non-contact) thermistor at the center of the heating roller is not operating correction.
Causes:• Thermistor harness connection loose, disconnected, defective • Thermistor installed incorrectly • Thermistor defective

Code: SC543
Description:Heating roller thermistor (center) error 2
The thermistor at the center of the heating roller detected an abnormally high temperature (over 250°C)
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC544
Description:Heating roller thermistor (center) error 3
The thermistor detected a temperature over 260°C..
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC545
Description:Lamp remains on
After hot roller reaches warm-up temperature, the center fusing lamps in the heating roller remained on at full capacity after reaching the warm-up temperature while the hot roller was not rotating.
Causes:• Do SP5810 to cancel the SC fusing code. • Heating roller thermistor damaged, or out of position • Fusing lamp disconnected, broken

Code: SC546
Description:Heating roller thermistor error (side)
The temperature measured by the heating roller thermistor does not reach 0°C after 50 sec. and remains over this temperature for 10 readings.
Causes:• Loose connection of the heating roller thermistor • Defective heating roller thermistor

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 zero-cross signals detected is not within specification. Note: Zero cross signals, generated from an ac power supply, are used to generate a trigger pulses to control the applied power accurately.
Causes:• Do SP5810 to cancel the SC fusing code. • Electrical noise on the power supply line • Fusing relay damaged, replace the AC drive board.

Code: SC549
Description:Heating roller thermistor (center): software error
The thermistor detected a temperature over 250°C 10 times within 1 sec.
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC550
Description:Heating roller thermistor 3 (side): hardware error
The thermistor detected a temperature over 260°C.
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC551
Description:Pressure roller thermistor error 1
The temperature measured by the pressure roller thermistor did not reach 0°C after 10 attempts.
Causes:• Do SP5810 to cancel the SC fusing code. • Loose connection of the pressure roller thermistor • Thermistor positioned incorrectly • Defective pressure roller thermistor

Code: SC552
Description:Pressure roller thermistor error 2
After the main switch is turned on or the cover is closed, the heating roller temperature did not reach the ready temperature (45°C) within 80 sec. after the fusing lamp switches on. -or- If the fusing unit did not reach the reload temperature after 350 sec.
Causes:• Pressure roller thermistor harness loose, disconnected, defective • Pressure roller thermistor defectives.

Code: SC553
Description:Pressure roller thermistor (software) error
The thermistor detected a temperature over 220°C 12 times within 1 sec.
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC554
Description:Pressure roller thermistor (hardware) error
The thermistor detected a temperature over 230°C.
Causes:• Do SP5810 to cancel the SC fusing code • TRIAC short, AC drive board defective • VBCU defective

Code: SC555
Description:Pressure roller fusing lamp remains on
After hot roller reaches warm-up temperature, the pressure roller fusing lamp remained for 300 sec. while the hot roller is not rotating.
Causes:• Do SP5810 to cancel the SC fusing code. • Thermistor damaged, or out of position • Fusing lamp disconnected, broken

Code: SC556
Description:Heating roller fusing lamp error
After hot roller reaches warmup temperature, the heating roller fusing lamp (ends) remains for 10 sec. while the hot roller is not rotating.
Causes:• Thermistor damaged, or out of position • Fusing lamp disconnected, broken

Code: SC557
Description:Zero Cross Over Error
At power on the fusing relay was detected as defective.
Causes:• Replace the AC drive board.

Code: SC559
Description:Three Successive Paper Jams in Fusing Unit
This SC only occurs if SP1159 is on, and a jam occurred in the fusing unit for three consecutive sheets of paper. With SP1159 set to "1" the machine operation can be restored only by the service technician. The paper cooling job time sensor detected paper late for 3 counts.
Causes:• Remove the paper that is jammed in the fusing unit. • Make sure that the fusing unit is clean and has no obstacles in the paper feed path.

Code: SC561
Description:Heating roller non-contact thermistor error 1
The temperature measured by the heating roller thermistor (non-contact) on the end of the heating roller did not reach the prescribed warm-up temperature within 1 sec.
Causes:• Loose, broken, damaged connector • Defective thermistor

Code: SC562
Description:Heating roller non-contact thermistor error 2
After the main switch is turned on or the cover is closed, the heating roller temperature does not reach the ready temperature within 100 sec. after the heater switches on. -or- The heating roller did not reach the ready temperature within 150 sec.
Causes:• Do SP5810 to cancel the SC fusing code • Defective hot roller thermistor • Heating roller disconnected, defective

Code: SC563
Description:Heating roller non-contact thermistor error 3
The thermistor 2 (of the heating roller) detected a temperature over 250°C 10 times within 1 sec.
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC564
Description:Heating roller non-contact thermistor error 3
The thermistor detected a temperature over 260°C.
Causes:• Do SP5810 to cancel the SC fusing code. • TRIAC short, AC drive board defective • VBCU defective

Code: SC565
Description:Heating roller fusing lamp on error
After fusing belt reached warm-up temperature, the heating roller fusing lamp remained on for 20 sec. while the hot roller was not rotating.
Causes:• Do SP5810 to cancel the SC fusing code. • Thermistor damaged, or out of position • Fusing lamp disconnected, broken

Code: SC566
Description:Heating roller non-contact thermistor 3
Thermistor detected a temperature less than 0 degrees more than three times.
Causes:• Do SP5810 to cancel the error. • Hot roller thermistor connector disconnected, loose, broken, or defective.

Code: SC569
Description:Pressure roller lift error 2
Pressure roller lift motor not operating correctly. (No signal to indicate completion of operation.)
Causes:• Pressure roller lift sensor connection loose, broken, damaged • Clean the pressure roller lift sensor • Pressure roller lift harness loose, broken, damage • Pressure roller lift motor blocked by an obstruction • Pressure roller lift motor defective

Code: SC570
Description:Development intake fan error
Fan motor not operating correctly.
Causes:• Fan harness loose, broken, defective • Fan overload due to physical obstruction • Fan motor defective

Code: SC571
Description:Ozone exhaust fan (FC) error
The fan of the middle ozone filter box not operating correctly.
Causes:• Fan harness loose, broken, defective • Fan overload due to physical obstruction • Fan motor defective

Code: SC572
Description:Ozone exhaust fan (K) error
The fan of the lower ozone filter box not operating correctly.
Causes:• Fan harness loose, broken, defective • Fan overload due to physical obstruction • Fan motor defective

Code: SC573
Description:Ozone intake fan error
The ozone filter intake fan not operating correctly.
Causes:• Fan harness loose, broken, defective • Fan overload due to physical obstruction • Fan motor defective

Code: SC574
Description:Y thermistor error The thermistor near the Y PCU has short circuited or otherwise not operating correctly.
Causes:• Harness loose, broken, defective • Thermistor defective

Code: SC585
Description:Double-feed detection sensor error
The ADC output value of the double-feed sensor LED was not within range (2 to 250).
Causes:• Sensors are covered with paper dust or other matter and require cleaning • Sensor harness connection loose, broken, defective • There is an obstruction between the emitter/receptor sensor pair. • Sensors defective

Code: SC599
Description:Tray 1 lift motor error
An error was detected in the operation of the lift motor for Tray 1 (tandem tray).
Causes:• Motor harness loose, broken, defective • Motor overload due to an obstruction • Motor defective

Code: SC620
Description:ARDF communication error
A BREAK signal occurs after the machine detects the ARDF, or a communication timeout occurs.
Causes:• ARDF disconnected • VBCU board harness disconnected, defective • VBCU board defective • Spurious noise from the power supply line • ARDF defective

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:• Connection cable between mailbox and finisher disconnected, defective • Finisher main board defective • VBCU defective • PSU defective

Code: SC622
Description:PFB communication error
Communication between the VBCU and PFB was interrupted. (Communication status is monitored at 30 ms intervals.)
Causes:• Connection cable between the VBCU and PFB is disconnected, defective • VBCU defective • PFB defective

Code: SC624
Description:Mailbox-to-copier communication error
Communication between the mailbox and copier is interrupted. An ACK/NCK signal was not received within 100 ms after a data frame is sent and 3 retries failed.
Causes:• Mailbox cable disconnected, defective • Mailbox main board defective • VBCU defective • PSU defective

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

Code: SC626
Description:VBCU-DTMB (DMC2) communication error
Communication between the VBCU and DMC (sub) 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 • VBCU defective • PSU defective

Code: SC627
Description:VBCU-DTMB (TMC) communication error
Communication between the VBCU and TMC was interrupted. An ACK/NAK signal was not received within 100 ms after a data frame was sent and three retries failed.
Causes:• DTMB harness loose, broken, defective • DTMB defective • VBCU defective • PSU defective

Code: SC636
Description:SD card error
Causes:• There is no expanded authentication module in the machine. • The SD card is damaged or the authentication module is corrupted. • There is no DESS module in the machine.

Code: SC641
Description:Engine-Controller Communication Error: No Response
There was no response to a frame sent from the controller board to the engine.
Causes:• Cycle the machine off/on.

Code: SC670
Description:Engine start failure
The engine did not respond within 30s after power on, or the engine went down suddenly at power on or during warm up because a communication reset occurred between the VBCU and the controller.
Causes:• VBCU installed incorrectly • VBCU defective

Code: SC671
Description:Incorrect board detected
An illegal engine board was detected at power on.
Causes:• Replace BICU

Code: SC687
Description:Memory address command error
The VBCU does not receive a memory address command from the controller 120 seconds after paper is in the position for registration.
Causes:• Turn the machine power off/on • Check the controller board connections • Controller defective

Code: SC701
Description:ARDF original pickup operation error
Even though the pickup motor is rotating clock-wise, the pickup roller home position sensor cannot detect the position of the pickup roller.
Causes:• Pickup roller HP sensor harness loose, disconnected, defective • Pickup roller HP sensor defective • Pickup motor harness loose, disconnected, defective • Pickup motor defective • ARDF control board defective

Code: SC705
Description:ARDF bottom plate lift motor
The bottom plate HP sensor did not detect the home position of the bottom plate after the bottom plate lift motor switches on and lowers the bottom plate. The bottom plate position sensor does not detect the position of the plate after the lift motor switches on and raises the bottom plate.
Causes:• ARDF feed motor disconnected, defective • Bottom plate HP sensor disconnected, defective • ARDF main board defective

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 causes an original jam message, and the 2nd failure causes this SC code.
Causes:• Lower transport motor disconnected, defective • Finisher connection to transport motor loose, defective • Lower transport motor defective • Finisher main board defective

Code: SC721
Description:Finisher jogger motor error (D373/D374, B830)
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 causes an original jam message, and the 2nd failure causes this SC code.
Causes:• 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

Code: SC723
Description:Finisher feed-out motor (B830)
The stack feed-out belt HP sensor does not activate within the specified time after the stack feedout belt motor turns on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• 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

Code: SC724
Description:Finisher stapler hammer motor error (B830)
Stapling does not finish within the prescribed time after the staple hammer motor turns on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• 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

Code: SC725
Description:Finisher exit guide plate motor error (D373/D374, B830, B660)
After moving away from the guide plate position sensor, the exit guide is not detected at the home position within the prescribed time. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Guide plate motor disconnected, defective • Guide plate motor overloaded due to obstruction • Guide plate position sensor disconnected, defective

Code: SC726
Description:Shift jogger motor 1 error (D373/D374, B830)
The sides fences do not retract within the prescribed time after the shift jogger motor switches on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code
Causes:• Shift jogger motor disconnected, defective • Shift jogger motor overloaded due to obstruction • Shift jogger HP sensor disconnected, defective

Code: SC727
Description:Shift jogger motor 2 error (D373/D374)
The side fences do not retract within the prescribed time after the shift jogger motor switches on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Motor harness disconnected, loose, defective • Motor defective • Motor overload • HP defective

Code: SC728
Description:Shift jogger retraction motor error (D373/D374)
The side fences do not retract within the prescribed time after the retraction motor switches on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Motor harness disconnected, loose, defective • Motor defective • Motor overload • HP defective

Code: SC730
Description:Finisher Tray 1 shift motor error (B830)
The shift roller HP sensor of the upper tray does not activate within the prescribed time after the shift tray starts to move toward or away from the home position. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Shift tray HP sensor of the upper tray disconnected, defective • Shift tray motor of the upper tray is disconnected, defective • Shift tray motor of the upper tray overloaded due to obstruction

Code: SC731
Description:Upper Transport Motor Error (Proof Tray): B830
No encoder pulse signal is detected for the upper transport motor within 600 ms. The 1st failure causes this SC code.
Causes:• Upper transport motor disconnected, defective • Finisher connection to upper transport motor loose, defective • Upper transport motor blocked by an obstruction • Upper transport motor defective • Finisher main board defective

Code: SC732
Description:Shift Tray Exit Motor: 3K Finisher B830
The shift tray exit motor is not operating.
Causes:• Motor harness loose, broken, defective • Motor is blocked by an obstruction • Motor defective • Finisher main control board defective

Code: SC733
Description:Stapler Exit Motor: B830
The stapler exit motor is not operating.
Causes:• Motor harness loose, broken, defective • Motor is blocked by an obstruction • Motor defective • Finisher main control board defective

Code: SC734
Description:Upper Tray Junction Gate Motor: 3K Finisher B830
The upper tray junction gate HP sensor did not detect the gate at the home position within 200 ms after two attempts. -or- The HP sensor twice detected the gate at the home position for more than 200 ms after it was supposed to open.
Causes:• Junction gate did not arrive at the home position within the specified time • Junction gate did not leave the home position within the specified time

Code: SC735
Description:Staple Junction Gate Motor Error: B830
The staple tray junction gate HP sensor did not detect the gate at the home position within 200 ms after two attempts. -or- The HP sensor twice detected the gate at the home position for more than 200 ms after it was supposed to open.
Causes:• Junction gate did not arrive at the home position within the specified time • Junction gate did not leave the home position within the specified time

Code: SC736
Description:Pre-Stack Junction Gate Motor Error: 3K Finisher B830
The pre-stack junction gate HP sensor did not detect the gate at the home position for within 200 ms after two attempts. -or- The HP sensor twice detected the gate at the home position for more than 200 ms after it was supposed to open.
Causes:• Junction gate did not arrive at the home position within the specified time • Junction gate did not leave the home position within the specified time

Code: SC737
Description:Pre-Stack Transport Motor Error: B830
The pre-stack transport motor is not operating.
Causes:• Motor harness loose, broken, defective • Motor is blocked by an obstruction • Motor defective • Finisher main control board defective

Code: SC738
Description:Pre-Stack Junction Gate Release Motor Error: B830
The pre-stack junction gate release HP sensor did not detect the gate at the home position within 200 ms after two attempts. -or- The HP sensor twice detected the gate at the home position for more than 200 ms after it was supposed to open.
Causes:• Junction gate did not arrive at the home position within the specified time • Junction gate did not leave the home position within the specified time

Code: SC740
Description:Finisher corner stapler motor error (B830)
The stapler motor does not switch off within the prescribed time after operating. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Staple jam • Number of sheets in the stack exceeds the limit for stapling • Stapler motor disconnected, defective

Code: SC741
Description:Finisher corner stapler rotation motor error
The stapler does not return to its home position within the specified time after stapling. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Stapler rotation motor disconnected, defective • Stapler rotation motor overloaded due to obstruction • Stapler rotation HP sensor disconnected, defective

Code: SC742
Description:Finisher stapler movement motor error
The stapler HP sensor is not activated within the specified time after the stapler motor turned on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Stapler movement motor disconnected, defective • Stapler movement motor overloaded due to obstruction • Stapler HP sensor disconnected, defective

Code: SC743
Description:Booklet stapler motor error 1
The front stapler unit saddle-stitch motor does not start operation within the specified time. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Front motor disconnected, defective • Front motor overloaded due to obstruction

Code: SC744
Description:Booklet stapler motor error 2
The rear stapler unit saddle-stitch motor does not start operation within the specified time. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Rear motor disconnected, defective • Rear motor overloaded due to obstruction

Code: SC745
Description:Feed-Out Belt Motor Error (D373/B830)
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 causes a jam error, and the 2nd failure causes this SC code.
Causes:If the motor is operating 1. Stack feed-out HP sensor harness loose, broken, defective 2. Stack feed-out HP sensor defective If the motor is not operating: 1. Feed-out motor blocked by an obstruction 2. Feed-out motor harness loose, broken, defective 3. Feed-out motor defective 4. Booklet finisher main board defective

Code: SC746
Description:Stack Plate Motor Error 1: Front Motor (B830)
The stack plate HP sensor (front) does not activate within 500 ms after the motor turns on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:If the motor is operating 1. Front stack plate HP sensor harness loose, broken, defective 2. Front stack plate HP sensor defective If the motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Booklet finisher main board defective

Code: SC747
Description:Stack Plate Motor Error 2: Center Motor (B830)
The stack plate HP sensor (center) does not activate within 500 ms after the motor turns on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:If the motor is operating 1. Center stack plate HP sensor harness loose, broken, defective 2. Center stack plate HP sensor defective If the motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Booklet finisher main board defective

Code: SC748
Description:Stack Plate Motor Error 3: Rear Motor (B830)
The stack plate HP sensor (rear) does not activate within 500 ms after the motor turns on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code
Causes:If the motor is operating 1. Rear stack plate HP sensor harness loose, broken, defective 2. Rear stack plate HP sensor defective If the motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Booklet finisher main board defective

Code: SC750
Description:Finisher tray 1 (upper tray lift) motor error
The upper tray paper height sensor does not change its status with the specified time after the tray raises or lowers. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Tray lift motor disconnected, defective • Upper tray paper height sensor disconnected, defective • Finisher main board connection to motor loose • Finisher main board defective

Code: SC753
Description:Stacking Roller Motor Error (B830)
The return drive HP sensor did not detect the stacking roller at the HP sensor within 1 sec. -or- The stacking roller did not leave the home position at the specified time.
Causes:If the motor is operating 1. Return drive HP sensor harness loose, broken, defective 2. Return drive HP sensor defective If the motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Finisher main board defective

Code: SC754
Description:Stacking Roller Drag Motor Error (B830)
The stacking roller drag motor did not turn on.
Causes:• Motor harness loose, broken, defective • Motor defective • Finisher control board defective

Code: SC755
Description:Shift Motor Error: 3K Finisher (B830)
The shift tray half-turn sensors: Failed twice to detect the shift tray at the home position at the specified time. -or- Failed twice to detect that the shift tray had left the home position.
Causes:If the motor is operating 1. Half-turn sensor 1, 2 harnesses loose, broken, defective 2. One of the half-turn sensors defective If the motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Finisher main board defective

Code: SC760
Description:Finisher punch motor error (B830)
The punch HP sensor is not activated within the specified time after the punch motor turned on. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Punch HP sensor disconnected, defective • Punch motor disconnected, defective • Punch motor overload due to obstruction

Code: SC761
Description:Finisher folder plate motor error (D373)
The folder plate moves but is not detected at the home position within the specified time. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:Folder plate HP sensor disconnected, defective Folder plate motor disconnected, defective Folder plate motor overloaded due to obstruction.

Code: SC763
Description:Punch movement motor error
Occurs during operation of the punch unit. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:Motor harness disconnected, loose, defective Motor defective

Code: SC764
Description:Paper position sensor slide motor error
Occurs during operation of the punch unit. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:Motor harness disconnected, loose, defective Motor defective

Code: SC765
Description:Fold Unit Bottom Fence Lift Motor Error (D373)
The fold unit bottom fence did not return to the home position within the specified time.
Causes:• Fold bottom fence mechanism overloaded due to an obstruction • Fold bottom fence HP sensor connector loose, broken, defective • Fold bottom fence HP sensor defective • Fold bottom fence lift motor connector loose, broken, defective • Fold bottom fence lift motor defective • Main control board defective

Code: SC766
Description:Clamp Roller Retraction Motor (D373) The clamp roller did not return to the home position within the specified time.
Causes:• Clamp roller mechanism overloaded due to an obstruction • Clamp roller HP sensor connector loose, broken, defective • Clamp roller HP sensor defective • Clamp roller retraction motor connector loose, broken, defective • Clamp roller retraction motor defective • Main control board defective

Code: SC767
Description:Stack Junction Gate Motor (D373)
The stack junction gate did not return to the home position within the specified time.
Causes:• Stack junction mechanism overloaded due to an obstruction • Stack junction gate HP sensor connector loose, broken, defective • Stack junction gate HP sensor defective • Stack junction gate motor connector loose, broken, defective • Stack junction gate motor defective • Main control board defective

Code: SC770
Description:Cover Interposer Lift Motor 1 Error
In the first tray: • The upper limit sensor did not detect the bottom plate within the specified time after the lift motor switched on to lift the bottom plate. • The lower limit sensor did not direct the bottom plate within the specified time after the lift motor switched on to lower the bottom plate. Note: In both cases, 1 error count indicates a jam, 2 error counts cause this SC code.
Causes:• Lift motor, upper limit sensor, lower limit sensor harnesses, connectors loose, broken, defective • Lift motor defective • Upper limit sensor defective • Lower limit sensor defective

Code: SC771
Description:Cover Interposer Lift Motor 2 Error
In the second tray: • The upper limit sensor did not detect the bottom plate within the specified time after the lift motor switched on to lift the bottom plate. • The lower limit sensor did not direct the bottom plate within the specified time after the lift motor switched on to lower the bottom plate. Note: In both cases, 1 error count indicates a jam, 2 error counts cause this SC code.
Causes:• Lift motor, upper limit sensor, lower limit sensor harnesses, connectors loose, broken, defective • Lift motor defective • Upper limit sensor defective • Lower limit sensor defective

Code: SC772
Description:Cover Interposer Pickup Motor 1 Error
In the first tray: • While the pick-up roller motor was on, the pick-up roller HP sensor did not detect the pick-up roller at the home position within the specified number of pulses. • While the pick-up roller motor was on, the pick-up roller HP sensor did not detect the pick-up roller at the home position above the specified number of pulses. Note: In both cases, 1 error count indicates a jam, 2 error counts cause this SC code.
Causes:• The pick-up motor, pick-up roller HP sensor harnesses, connectors were loose, broken, defective • Pick-up motor overload due to an obstruction • Pick-up motor defective • Pick-up roller HP sensor defective

Code: SC773
Description:Cover Interposer Pickup Motor 2 Error
In the second tray: • While the pick-up roller motor was on, the pick-up roller HP sensor did not detect the pick-up roller at the home position within the specified number of pulses. • While the pick-up roller motor was on, the pick-up roller HP sensor did not detect the pick-up roller at the home position above the specified number of pulses. Note: In both cases, 1 error count indicates a jam, 2 error counts cause this SC code.
Causes:• The pick-up motor, pick-up roller HP sensor harnesses, connectors were loose, broken, defective • Pick-up motor overload due to an obstruction • Pick-up motor defective • Pick-up roller HP sensor defective

Code: SC775
Description:Jogger Top Fence Motor: 3K Finisher B830
The top fence HP sensor detected that: The top fence did not arrive at the home position within the specified number of pulses. -or- The top fence failed to leave the home position within the specified number of pulses.
Causes:If the jogger top fence motor is operating: 1. Top fence HP sensor harness loose, broken, defective 2. Top fence HP sensor defective If the jogger top fence motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Finisher main board defective

Code: SC776
Description:Jogger Bottom Fence Motor (B830)
The bottom fence HP sensor detected that: The bottom fence did not arrive at the home position at the specified time. -or- The bottom fence failed to leave the home position at the specified time.
Causes:If the jogger bottom fence motor is operating: 1. Bottom fence HP sensor harness loose, broken, defective 2. Bottom fence HP sensor defective If the jogger bottom fence motor is not operating: 1. Motor blocked by an obstruction 2. Motor harness loose, broken, defective 3. Motor defective 4. Finisher main board defective

Code: SC778-1
Description:Horizontal Transport Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC778-2
Description:Top Tray Exit Motor Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC778-3
Description:Top Tray JG Motor Multi Folder (D454)
The top tray JG HP sensor did not detect the top tray junction gate at (or out of) its home position. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Top tray JG HP sensor dirty • Sensor harness or connector loose, broken, defective • Top tray JG motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defectiveC code.

Code: SC778-4
Description:Entrance JG Motor Multi Folder (D454)
The entrance junction gate HP sensor did not detect the entrance junction gate at (or out of) its home position. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Entrance JG HP sensor dirty • Sensor harness or connector loose, broken, defective • Entrance JG motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defectiveC code.

Code: SC779
Description:1st Stopper Motor Error Multi Folder (D454)
The 1st stopper HP sensor did not detect the 1st stopper in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• 1st stopper HP sensor dirty • Sensor harness or connector loose, broken, defective • 1st stopper motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defectiveC code.

Code: SC780
Description:Z-Fold Feed Motor Error
The feed motor that drives the feed rollers and exit rollers in the Z-fold unit is not operating. The 1st alert signals a jam, the 2nd alert triggers this SC.
Causes:• Motor harness loose, broken, defective • Motor blocked by an obstruction • Motor defective

Code: SC781
Description:Z-Fold Lower Stopper Motor Error
The lower stopper failed to leave the home position with the specified number of motor pulses. Note: The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Lower stopper motor disconnected, defective • Lower stopper motor overloaded due to obstruction • Lower stopper HP sensor disconnected, defective

Code: SC782
Description:Z-fold Upper Stopper Motor
The upper stopper failed to leave the home position with the specified number of motor pulses. Note: The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes:• Upper stopper motor disconnected, defective • Upper stopper motor overloaded due to obstruction • Upper stopper HP sensor disconnected, defective

Code: SC783-1
Description:2nd Stopper Motor Error Multi Folder (D454)
The 2nd stopper HP sensor did not detect the 2nd stopper in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• 2nd stopper HP sensor dirty • Sensor harness or connector loose, broken, defective • 2nd stopper motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-10
Description:Fold Plate Motor Error Multi Folder (D454)
The fold plate HP sensor did not detect the fold plate in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Fold plate HP sensor dirty • Sensor harness or connector loose, broken, defective • Fold plate motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defectiveard defective

Code: SC783-11
Description:Jogger Fence Motor Multi Folder (D454)
The jogger fence HP sensor did not detect the jogger fence in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Jogger fence HP sensor dirty • Sensor harness or connector loose, broken, defective • Jogger fence motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-12
Description:Positioning Roller Motor Error Multi Folder (D454)
The positioning roller HP sensor did not detect the positioning roller in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Positioning roller HP sensor dirty • Sensor harness or connector loose, broken, defective • Positioning roller motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-13
Description:FM2 Direct-Send JG Motor Multi Folder (D454)
The direct-send JG HP sensor did not detect the direct-send JG in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• FM2 direct-send JG HP sensor dirty • Sensor harness or connector loose, broken, defective • FM2 direct-send JG motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-14
Description:FM6 Pawl Motor Multi Folder (D454)
The FM6 pawl HP sensor did not detect the FM6 pawl in (or out of) its home position. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• FM6 pawl HP sensor dirty • Sensor harness or connector loose, broken, defective • FM6 pawl motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-2
Description:3rd Stopper Motor Error Multi Folder (D454)
The 3rd stopper HP sensor did not detect the 3rd stopper in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• 3rd stopper HP sensor dirty • Sensor harness or connector loose, broken, defective • 3rd stopper motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-3
Description:1st Fold Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC783-4
Description:2nd Fold Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC783-5
Description:Crease Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC783-6
Description:Dynamic Roller Transport Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC783-7
Description:Reg. Roller Transport Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor.
Causes:• Motor harness or connector loose, broken, defective • Motor or motor drive board defective

Code: SC783-8
Description:Dynamic Roller Lift Motor Error Multi Folder (D454)
The dynamic roller HP sensor did not detect the dynamic roller in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Dynamic roller HP sensor dirty • Sensor harness or connector loose, broken, defective • Dynamic roller lift motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC783-9
Description:Registration Roller Release Motor Error Multi Folder (D454)
The registration roller HP sensor did not detect the registration roller in (or out of) its home position within the prescribed time. The 1st occurrence causes a jam, and the 2nd occurrence causes this SC code.
Causes:• Registration roller HP sensor dirty • Sensor harness or connector loose, broken, defective • Registration roller release motor harness or connector loose, broken, defective • Sensor defective • Motor or motor drive board defective

Code: SC784
Description:Z-Fold Timing Sensor Adjustment Error 1
The output voltage light emitted from the sensor changed, but the return input was not sufficient to attain V0.
Causes:• Sensor, mirror dirty from paper dust, other particles • Harness loose, broken, defective • Mirror out of position

Code: SC785
Description:Z-Fold Timing Sensor Adjustment Error 2
The output voltage light emitted from the sensor changed, but the return input was not sufficient to attain V0.
Causes:• Sensor, mirror dirty from paper dust, other particles • Harness loose, broken, defective • Mirror out of position

Code: SC786
Description:Z-Fold Memory Error
Several attempts to write to the Zfold memory failed.
Causes:• Turn the machine power off/on • EEPROM on Z-Folder main board defective

Code: SC789
Description:Proof Tray Exit Motor Error Multi Folder (D454)
The motor drive PCB detected an error at the motor due to overload, overheating. Paper cannot exit at proof tray.
Causes:• Motor, motor drive board defective

Code: SC792-1
Description:Junction gate error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 36 pulses) (1 detection, jam, twice detected, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 22 pulses) (1 detection, jam, twice detected, SC error)
Causes:• Path JG motor (M201) defective • Motor connector loose, broken, defective • Motor overload • Path JG sensor (S203) connector loose, broken, defective • Sensor (S203) defective

Code: SC792-10
Description:Binder unit runout error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Runout press roller motor (M610) connector loose, broken, defective • Motor defective • Motor overload • Runout roller HP sensor (S614) connector loose, broken, defective • Sensor defective

Code: SC792-11
Description:Clamp thickness error 50-sheet detection sensor (S606) went OFF during pre-bind jogging when a 100- sheet thickness was detected. (1st detection jam, 2nd detection SC error) -or- 50-sheet detection sensor went OFF at initialization when the clamp moved to the open position.
Causes:• 50-sheet detection sensor (S606) connector loose, broken, defective • Sensor defective

Code: SC792-12
Description:Alignment pin error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Alignment pin motor (M602) connector loose, broken, defective • Motor overload • Motor defective • Alignment pin HP sensor (S604) connector loose, broken, defective • Sensor defective

Code: SC792-13
Description:Pre-bind jogger shutter error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Shutter motor (M608) connector loose, broken, defective • Motor overload • Motor defective • Shutter HP sensor (S605) connector loose, broken, defective • Sensor defective

Code: SC792-15
Description:Timing sensor interval error
The bind timing sensor (S702) remained ON or OFF longer than the prescribed time (1500 ms) during initialization or ring binding (1st detection: jam, 2nd detection: SC error)
Causes:• Clamp unit motor (M701) connector loose, broken, defective • Motor overload • Motor defective • Bind timing sensor (S702) connector loose, broken, defective • Sensor defective

Code: SC792-16
Description:Clamp unit HP error
At initialization or during ring binding, did not arrive at the home position within the prescribed time (1500 ms) (1st detection: jam, 2nd detection: SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 1500 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Clamp unit motor (M701) connector loose, broken, defective • Motor overload • Motor defective • Clamp unit HP sensor (S701) connector loose, broken, defective • Sensor defective

Code: SC792-17
Description:Spine alignment error
During pin alignment operation, the pin did not reach the up position or return to the home position with the prescribed time (400 ms), and one retry failed within the same time limit.
Causes:• Alignment pin motor (M602) connector loose, broken, defective • Motor overload • Motor defective • Alignment pin HP sensor (S604) connector loose, broken, defective, or sensor defective • Alignment pin up sensor (S610) connector loose, broken, defective, or sensor defective • Stack not jogged correctly, or not punched correctly

Code: SC792-18
Description:Binder unit not detected
The binder unit could not be detected at initialization.
Causes:• Drawer connector loose, broken, defective • Drawer connector defective

Code: SC792-2
Description:Pre-punch side fence HP error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 pulses) (1st detection, jam, 2nd detection, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 600 pulses) (1st detection, jam, 2nd detection, SC error)
Causes:• Side jogger motor (M302) connector loose, broken, defective • Motor overload • Motor defective • Pre-punch jogger HP sensor (S301) connector loose, broken, defective • Sensor (S301) defective

Code: SC792-20
Description:Output belt 1 HP error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 200 pulses) (1st detection, jam, 2nd detection, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 2125 pulses) (1st detection, jam, 2nd detection, SC error)
Causes:• Output belt 1 motor (M401) connector loose, broken, defective • Motor overload • Motor defective • Output belt 1 HP sensor (S401) connector loose, broken, defective • Sensor defective

Code: SC792-21
Description:Output belt 2 HP error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 200 pulses) (1st detection, jam, 2nd detection, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 3130 pulses) (1st detection, jam, 2nd detection, SC error)
Causes:• Output belt 2 motor (M402) connector loose, broken, defective • Motor overload • Motor defective • Output belt 2 HP sensor (S402) connector loose, broken, defective • Sensor defective

Code: SC792-22
Description:Stack height error
Stack height sensor remained ON while moving toward the top. -or- The sensor did not go ON within 6 sec. after the motor turned on.
Causes:• Stacker motor (M501) connector loose, broken, defective • Motor overload • Stack height sensor (S502) connector loose, broken, defective • Sensor defective

Code: SC792-23
Description:Stacker error
Although the stacker was full at the start and end of stacker operation with the stacker full (stacker sensors ON together), no documents were detected (also when documents were leaning) -or- Although the stacker was detected full with the stacker stopped, no documents were detected within 2 sec. (1st detection jam, 2nd detection SC error)
Causes:• Stacker HP sensor (S501) connector loose, broken, defective, or sensor defective • Stacker height HP sensor (S502) connector loose, broken, defective, or sensor defective • Stacker detect sensor (S504) loose, broken, defective, or sensor defective

Code: SC792-3
Description:Pre-punch jogger roller HP error
Detected at HP after the time prescribed to leave the HP had elapsed (more than 36 pulses) (1st detection, jam, 2nd detection, SC error) -or- Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 22 pulses) (1st detection, jam, 2nd detection, SC error)
Causes:• Jog roller lift motor (M305) connector loose, broken, defective • Motor overload • Motor defective • Jog roller lift HP sensor (S309) connector loose, broken, defective • Sensor defective

Code: SC792-4
Description:Punch defective
One or more of the following occurred: • Punch unit not detected at initialization. • No motor rotation detected at HP at 30 ms after the DC motor turned on • No encoder pulse detected at HP at 5 ms after the DC motor turned on • Not detected at HP at 400 ms after the DC motor turned on
Causes:• Punch motor (M304) connector loose, broken, defective • Motor overload • Motor defective • Punch HP sensor (S302) connector loose, broken, defective, or sensor defective • Punch encoder sensor (S303) connector loose, broken, defective, or sensor defective

Code: SC792-5
Description:Paddle roller HP error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Paddle roller lift motor (M603) connector loose, broken, defective • Motor overload • Motor defective • Paddle roller HP sensor (S602) connector loose, broken, defective • Sensor defective

Code: SC792-6
Description:Jogger fence 1 error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Jog fence 1 motor (M604) connector, loose, broken, defective • Motor defective • Motor overload • Side fence 1 HP sensor (S601) connector, loose, broken, defective • Sensor defective

Code: SC792-7
Description:Jogger fence 2 error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Jog fence 2 motor (M606) connector, loose, broken, defective • Motor defective • Motor overload • Side fence HP sensor 1 (S611) connector loose, broken, defective • Sensor defective

Code: SC792-8
Description:Stack tamper HP error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Stack tamper motor (M607) connector, loose, broken, defective • Motor defective • Motor overload • Stack tamper HP sensor (S612) connector loose, broken, defective • Sensor defective

Code: SC792-9
Description:Pre-bind jogger clamp HP error
Not detected at HP after the time prescribed to arrive at the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error) -or- Detected at HP after the time prescribed to leave the HP had elapsed (more than 400 ms) (1st detection, jam, 2nd detection, SC error)
Causes:• Spine clamp motor (M605) connector loose, broken, defective • Motor defective • Motor overload • Clamp HP sensor (S603) connector loose, broken, defective • Sensor defective

Code: SC816
Description:Energy save I/O subsystem error
An error was detected in the signal from the ASIC (controller board) which controls the STR (Suspend to RAM) function. Note: STR is a feature of this machine that minimizes energy consumption while the machine is in the energy saver mode.
Causes:• Reboot the machine. • Replace the controller board.

Code: SC817
Description:Boot loader error
The boot loader cannot read one of the following: self-diagnostic module, kernel, or one of the files of the root file system, or the check of one of these items on the system SD card failed.
Causes:• File or module on the system SD card is corrupted • File or module on the system SD card is illegal • Make sure that the system SD card is the one designed for the machine • Replace controller board.

Code: SC819
Description: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.
Causes:• System program defective • Controller board defective • Optional board defective • Replace controller firmware

Code: SC821
Description:Self-diagnostic error 1: 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.
Causes:• ASIC (controller board defective)

Code: SC822
Description:Self-diagnostic error 2: HDD
Causes:

Code: SC824
Description:Self-diagnostic error 3: NVRAM
NVRAM device does not exist, NVRAM device is damaged, NVRAM socket damaged
Causes:• NVRAM defective • Controller board defective • NVRAM backup battery exhausted • NVRAM socket damaged

Code: SC829
Description:Self-diagnostic error 5: Optional RAM
Verify error for optional RAM.
Causes:• Make sure that the resident RAM is installed in the correct slot. • Make sure the optional RAM is installed in the correct slot (Slot 0)

Code: SC833
Description:Self-diagnostic error 8: Engine I/F ASIC
Causes:

Code: SC834
Description:Self-diagnostic error 9: Optional Memory RAM DIMM
Causes:• Controller defective

Code: SC850
Description:Net I/F error
Duplicate IP addresses. Illegal IP address. Driver unstable and cannot be used on the network.
Causes:• IP address setting incorrect • Ethernet board defective • Controller board defective

Code: SC858
Description:Data Encryption Error 1 These are errors of the HDD Data Encryption Option D377.
Causes:
- Code: SC859
- Description:Data Encryption Error 2
- Causes:
- Code: SC861
- Description: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.
- Causes:Harness between HDD and board disconnected, defective HDD power connector disconnected HDD defective Controller board defective
- Code: SC863
- Description:HDD data read failure
  The data written to the HDD cannot be read normally, due to bad sectors generated during operation.
- Causes: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.
- Code: SC864
- Description: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.
- Causes:HDD defective
- Code: SC865
- Description:HDD access error
  HDD responded to an error during operation for a condition other than those for SC863, 864.
- Causes:HDD defective.
- Code: SC867
- Description: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.
- Causes:Insert the SD card, then turn the machine off and on.
- Code: SC868
- Description:SD card error 3: SD card access
  An error occurred while an SD card was being used.
- Causes:• SD card not inserted correctly • SD card defective • Controller board defective
- Code: SC870
- Description:Address book data error
  Address book data 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. • Cycle the machine off/on. • Replace controller firmware. • HDD defective

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