Bảng tra mã lổi máy photocopy ricoh MPC 901

SC Code Photocopy Ricoh MPC901

- Bảng tra mã lỗi Photocopy Ricoh MPC901

- Tài liệu sửa chữa Photocopy Ricoh MPC901

- Call for service Photocopy Ricoh MPC901

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• MÁY PHOTOCOPY SIÊU TỐC
• ++MÁY PHOTOCOPY MÀU
• ++MÁY PHOTOCOPY A0 A1 A2
• MÁY PHOTOCOPY CHUYÊN PHOTOSHOP
• MÁY PHOTOCOPY CHO THUÊ
• MÁY PHOTOCOPY VĂN PHÒNG
• MÁY PHOTOCOPY CÔNG NGHIỆP DỊCH VỤ
• MÁY PHOTOCOPY BỆNH VIỆN TRƯỜNG HỌC
• MÁY PHOTOCOPY XÂY DỰNG VÀ THIẾT KẾ
• MÁY PHOTOCOPY HOT NHẤT 2018

Những yêu cầu hỗ trợ khác về máy photocopy Ricoh Aficio MPC901:

- Hướng dẫn download Driver máy Photocopy

- Tài liệu kỹ thuật máy Photocopy

- Tài liệu sửa chữa máy Photocopy

- Tài liệu hướng dẫn sử dụng máy Photocopy(Copier User Guide - Copier User Manual)

- SP mode máy Photocopy (Service Program Mode)

- SC Code máy photocopy (Service Call Code - Bảng tra lỗi)

- Linh kiện máy photocopy

- Mọi thắc mắc vui lòng liên hệ Hotline: 0903 172 399 - 0988.266.734.

Bảng tra mã lỗi để bạn có thể sửa máy photocopy ricoh mp MPC901.

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: SC143
Description:
SBU Auto Adjust Error
At power on the automatic white level adjustment failed.
Causes:
• Clean the white plate • Clean the optics and lenses • Check the connectors between the SBU and IPU. • Replace the SBU • Replace the IPU • Replace the VBCU • Replace the exposure lamp
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: 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: 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: 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: 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: 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: SC568
Description:
Pressure roller lift error 1
Even after the leading edge of the paper reached the fusing exit sensor, the pressure roller lift motor did not raise the pressure roller.
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: 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: 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: 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