Sharp MXC401 with list Error Codes and Epson PX-730 Adjustment Program

Sharp MXC401 Printer with list Error Codes and Epson PX-730 Adjustment Program

– Printer model: Sharp MXC401
– Error codes on Sharp MXC401 with details instruction fixing:

Code: A0-01
Description: PCU PWB ROM error
Causes: The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. ROM trouble.
Troubleshooting Guides: Use SIM49-1 to perform the version-up procedure again. ROM trouble.

Code: A0-02
Description: SCU PWB ROM error
Causes: The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. ROM trouble.
Troubleshooting Guides: Use SIM49-1 to perform the version-up procedure again. ROM trouble.

Code: A0-10
Description: MFP PWB ROM error
Causes: Firmware combination error between the MFP and the image ROM (color correction ROM).
Troubleshooting Guides: Upgrade the firmware versions of the MFP and the image ROM (color correction ROM).

Code: A0-11
Description: Firmware version inconsistency (MFP – PCU)
Causes: Firmware combination error between the MFP and the PCU.
Troubleshooting Guides: Check the combination between the MFP and the PCU.

Code: A0-12
Description: Firmware version inconsistency (MFP – SCU)
Causes: Firmware combination error between the MFP and the SCU.
Troubleshooting Guides: Check the combination between the MFP and the SCU.

Code: A0-20
Description: MFP firmware version and EEPROM data version inconsistency
Causes: Inconsistency between the MFP firmware version and the EEPROM data version.
Troubleshooting Guides: Check the combination of the firmware.

Code: A0-21
Description: PCU firmware version and EEPROM data version inconsistency
Causes: Inconsistency between the PCU firmware version and the EEPROM data version.
Troubleshooting Guides: Check the combination of the firmware.

Code: A0-22
Description: SCU firmware version and EEPROM data version inconsistency
Causes: Inconsistency between the SCU firmware version and the EEPROM data version.
Troubleshooting Guides: Check the combination of the firmware.

Code: C1-10
Description: Main charger trouble (BK)
Causes: The main charger unit (BK) is not installed properly. There is an abnormality in the main charger unit. Disconnection of the high voltage PWB connector. Breakage of the high voltage harness. MC/DV PWB trouble. PCU PWB trouble
Troubleshooting Guides: Check the output of the main charger with SIM8-2. Check disconnection of the main charger./Replace. Check disconnection of the high voltage PWB. connector. /Replace. Replace the MC/DV PWB. Replace the PCU PWB.

Code: C1-14
Description: Main charger trouble (Color)
Causes: The main charger unit (CMY) is not installed properly. There is an abnormality in the main charger. Disconnection of the high voltage PWB connector. Breakage of the high voltage harness. MC PWB trouble. PCU PWB trouble
Troubleshooting Guides: Check the output of the main charger with SIM8-2. Check disconnection of the main charger./Replace. Check disconnection of the high voltage PWB connector. /Replace. Replace the MC PWB. Replace the PCU PWB.

Code: C4-00
Description: PTC trouble
Causes: The PTC unit is not properly installed. PTC unit trouble. TC PWB trouble. PCU PWB trouble. Connector, harness connection trouble.
Troubleshooting Guides: Replace the PTC unit. Replace the secondary transfer PWB. Replace the PCU PWB. Check connection of the connector and the harness.

Code: E7-01
Description: MFP image data error
Causes: Image data transfer error in the MFP PWB. MFP PWB trouble.
Troubleshooting Guides: Check connection of the connector and the harness of the MFP PWB. Replace the MFP PWB.

Code: E7-03
Description: HDD trouble
Causes: Connector, harness connection trouble in the MFP PWB and HDD. HDD (error file management area) data abnormality (FAT breakage). MFP PWB trouble.
Troubleshooting Guides: Check connection of the connector and the harness of the MFP PWB and HDD. Use SIM62-2, 3 to check read/write operations of the HDD. Replace the HDD. Replace the MFP PWB.

Code: E7-04
Description: HDD-ASIC error
Causes: HDD-ASIC trouble. An error occurs in the HDD-ASIC self test when booting.
Troubleshooting Guides: Replace the MFP PWB.

Code: E7-05
Description: Standard memory/expansion memory read/write error (MFP PWB)
Causes: Improper insertion of the memory. Garbled memory data. The memory capacity is not the specified level.
Troubleshooting Guides: Check insertion of the memory. Use SIM60-1 to check the read/write operations of the memory. Replace the expansion memory. Replace the MFP PWB.

Code: E7-06
Description: Image data decode error
Causes: Compressed image data abnormality. HDD connection trouble when HDD is installed. Image data compression/transfer data garble. MFP PWB trouble.
Troubleshooting Guides: If the job at an occurrence of an error is a FAX job, check the FAX PWB. Check connection of the MFPC PWB and the HDD. Replace the MFPC PWB.

Code: E7-08
Description: MFP memory compatibility error (MFP PWB)
Causes: A DIMM of different specifications is installed to the MFP memory slot. DIMM trouble.
Troubleshooting Guides: Check the installed DIMM. Replace the DIMM.

Code: E7-09
Description: Standard memory size/Expansion memory size error (MFP PWB)
Causes: A DIMM other than below is installed to the default throttle. • 38-sheet machine/40-sheet machine System memory: 1GB Local memory: 512MB • 31-sheet machine System memory: 512MB Local memory: 512MB DIMM trouble. Insufficient memory size.
Troubleshooting Guides: Replace the DIMM.

– Sharp MXC401 printer Error Codes and quick guide on repairing:

Code: E7-10
Description: Shading error (Black correction)
Causes: Abnormality in the CCD black scan level when the scanner lamp is turned OFF. Improper installation of the harness to the CCD unit/SCU PWB. CCD unit abnormality. SCU PWB abnormality.
Troubleshooting Guides: Check connection of the harness to the CCD unit/ SCU PWB. Check the CCD unit. Check the SCU PWB.

Code: E7-11
Description: Shading error (White correction)
Causes: Abnormality in the CCD white reference plate scan level when the scanner lamp is turned ON. Improper installation of the harness to the CCD unit/SCU PWB. Dirt on the mirror, lens, and the reference white plate. Scanner lamp lighting trouble. CCD unit abnormality. SCU PWB abnormality.
Troubleshooting Guides: Check connection of the harness to the CCD unit/ SCU PWB. Check connection of the harness to the scanner lamp unit. Clean the mirror, the lens, and the reference white plate. Check the CCD unit. Check the SCU PWB.

Code: E7-14
Description: CCD-ASIC error
Causes: SCU PWB trouble.
Troubleshooting Guides: Check the SCU PWB. Replace the SCU PWB.

Code: E7-20
Description: LSU laser detection error (K)
Causes: Optical axis shift. Reduced laser power, lighting error, laser diode trouble. BD PWB trouble. Harness and connector trouble between the LD/BD PWB and the LSU cnt PWB.
Troubleshooting Guides: Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.

Code: E7-21
Description: LSU laser detection error (C)
Causes: Reduced laser power, lighting error, laser diode trouble. Harness and connector trouble between the LD PWB and the LSU cnt PWB.
Troubleshooting Guides: Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.cnt PWB.

Code: E7-22
Description: LSU laser detection error (M)
Causes: Reduced laser power, lighting error, laser diode trouble. Harness and connector trouble between the LD PWB and the LSU cnt PWB.
Troubleshooting Guides: Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.

Code: E7-23
Description: LSU laser detection error (Y)
Causes: Reduced laser power, lighting error, laser diode trouble. Harness and connector trouble between the LD PWB and the LSU cnt PWB.
Troubleshooting Guides: Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.

Code: E7-28
Description: LSU-PCU connection error
Causes: Communication error between the CPU in the PCU PWB and the control ASIC. Improper connection of the communication connector between the PCU PWB and the LSU cnt PWB (interface PWB). Harness trouble between the PCU PWB and the LSU cnt PWB (interface PWB) PCU PWB or LSU cnt PWB (interface PWB) trouble
Troubleshooting Guides: Check connection of the connector and the harness between the PCU PWB and the LSU cnt PWB (interface PWB). Replace the LSU cnt PWB. Replace the PCU PWB.

Code: E7-29
Description: LSU ASIC frequency error
Causes: Oscillation abnormality of the external oscillator and the internal oscillating circuit used in the LSU ASIC. LSU ASIC abnormality on the LSU ASIC PWB.
Troubleshooting Guides: Replace the LSU cnt PWB.

Code: E7-50
Description: Engine connection trouble
Causes: A PWB, or firmware, or LSU which is not supported by the machine specifications is detected in the PCU PWB. PCU PWB trouble. LSU trouble.
Troubleshooting Guides: Check the kind and the version of the firmware. Check the LSU, and replace it if necessary. Check the PCU PWB, and replace it if necessary.

Code: E7-55
Description: PWB information sum error (Engine detection)
Causes: PCU EEPROM sum check error. PCU EEPROM trouble. PCU EEPROM contact trouble. Malfunction due to noises
Troubleshooting Guides: Replace the PCU PWB. Replace the PCU EEPROM.

Code: E7-60
Description: Combination error between the MFP PWB and other PWB, firmware
Causes: A PWB or firmware which is not supported by the machine specifications is detected in the MFP PWB. MFP PWB trouble. The PWB/firmware which is not supported by the machine specifications is connected.
Troubleshooting Guides: Check the kind and the version of the firmware. Check the MFP PWB, and replace it if necessary.

Code: E7-61
Description: Combination error between the MFP PWB and the PCU PWB
Causes: Combination error between the MFP PWB and the PCU PWB. MFP PWB trouble. PCU PWB trouble.
Troubleshooting Guides: Check the combination between the MFP PWB and the PCU PWB. Replace the MFP PWB. Replace the PCU PWB.

Code: E7-65
Description: MFP EEPROM sum check error
Causes: MFP PWB EEPROM device breakdown. Contact trouble of the MFP EEPROM device. Malfunction due to noises.
Troubleshooting Guides: Replace the MFP PWB. Replace the MFP PWB EEPROM.

Code: E7-80
Description: MFP-SCU PWB communication error
Causes: SCU PWB connector connection trouble. SCU PWB – MFP PWB connection trouble. SCU PWB mother board connection trouble. SCU PWB trouble. MFP PWB trouble. Replace the mother board.
Troubleshooting Guides: Check connection of the SCU PWB, the MFP PWB, and the mother board. Check the earth line. Replace the SCU PWB. Replace the MFP PWB. Replace the mother board.

Code: E7-90
Description: MFP-PCU PWB communication error
Causes: PCU PWB connector connection trouble. PCU PWB – MFP PWB connection trouble. PCU PWB motherboard connection trouble. PCU PWB trouble. MFP PWB trouble. Replace the mother board.
Troubleshooting Guides: Check connection of the PCU PWB, the MFP PWB, and the mother board. Check the earth line. Replace the PCU PWB. Replace the MFP PWB. Replace the mother board.

Code: EE-EC
Description: Automatic toner density adjustment error (Sampling level 76 – 117/139 – 178)
Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

Code: EE-EL
Description: Automatic toner density adjustment error (Overtoner)
Causes: Toner density sensor trouble. Charging voltage/ developing voltage trouble, toner density trouble, or developing unit trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

Code: EE-EU
Description: Automatic toner density adjustment error (Undertoner)
Causes: Toner density sensor trouble. Charging voltage/ developing voltage trouble, toner density trouble, or developing unit trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

Code: F1-00
Description: Finisher – PCU PWB communication error
Causes: Connection trouble of the connector and the harness between the finisher and the PCU PWB. Finisher control PWB trouble. PCU PWB trouble. Strong external noises.
Troubleshooting Guides: Check the connector and the harness between the finisher and the PCU PWB. Replace the finisher control PWB. Replace the PCU PWB.

Code: F1-03
Description: Finisher paper exit roller lifting operation trouble
Causes: Finisher paper exit roller lift motor trouble. Harness and connector connection trouble. Home position sensor trouble. Finisher control PWB trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the paper exit roller lift motor. Replace the paper exit roller lift motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.

Code: F1-10
Description: Staple operation trouble
Causes: Staple motor trouble. Finisher control PWB trouble. Home position sensor trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the staple motor. Replace the staple motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.

Code: F1-15
Description: Finisher paper exit tray lift operation trouble
Causes: Paper exit tray lift motor trouble. Finisher control PWB trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the paper exit tray lift motor. Replace the finisher control PWB. Replace the paper exit tray lift motor.

Code: F1-19
Description: Finisher alignment operation trouble F
Causes: Finisher paper alignment motor lock. Motor speed abnormality. Overcurrent to the motor. Finisher control PWB trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the paper alignment motor F. Replace the finisher control PWB. Replace the paper alignment motor F.

Code: F1-20
Description: Finisher alignment operation trouble R
Causes: Finisher paper alignment motor lock. Motor speed abnormality. Overcurrent to the motor. Finisher control PWB trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the paper alignment motor R. Replace the finisher control PWB. Replace the paper alignment motor R.

Code: F1-21
Description: Finisher fan trouble
Causes: Finisher fan motor trouble. Finisher control PWB trouble. Harness and connector connection trouble.
Troubleshooting Guides: Use SIM3-3 to check the operation of the fan motor. Check connection between the finisher control PWB and the fan. Replace the fan. Replace the finisher control PWB.

Code: F1-29
Description: Finisher PWB fan trouble
Causes: Finisher PWB fan lock. Finisher control PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM 3-3 to check the operation of the control PWB cooling fan (FBCF). Replace the finisher PWB fan. Replace the finisher control PWB. Connection trouble of the connector and the harness.

Code: F1-37
Description: Finisher data backup RAM error
Causes: Finisher control PWB trouble. Malfunction due to noises
Troubleshooting Guides: Replace the finisher control PWB. Readjust the finisher. (Use SIM3-10,Finisher control PWB DIP SW adjustment.)

Code: F1-50
Description: Main unit – Finisher combination error
Causes: The finisher which is not supported by the main unit model is installed. Finisher control PWB trouble.
Troubleshooting Guides: Install a proper finisher. Replace the finisher control PWB.

Code: F2-11
Description: Developing unit initial detection (K)
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. (K) Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-51 to check the operation of the [DVCRU K] fuse blowing circuit. Use SIM30-1 to check the [DVCRU K] initial detection input signal. Replace the developing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-12
Description: Developing unit initial detection (C)
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. (C) Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-51 to check the operations of the [DVCRU C] fuse blowing circuit. Use SIM30-1 to check the [DVCRU C] initial detection input signal. Replace the developing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-13
Description: Developing unit initial detection (M)
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. (M) Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-51 to check the operations of the [DVCRU M] fuse blowing circuit. Use SIM30-1 to check the [DVCRU M] initial detection input signal. Replace the developing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-14
Description: Developing unit initial detection (Y)
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. (Y) Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-51 to check the operations of the [DVCRU Y] fuse blowing circuit. Use SIM30-1 to check the [DVCRU Y] initial detection input signal. Replace the developing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-15
Description: Drum unit initial detection trouble (K drum)
Causes: When the newly installed drum is driven for the specified time after installation, the new state is not canceled. (K) Detection switch [DRCRU-K] trouble Process cartridge trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM30-1 to check the operation of the [DRCRU-K] switch. Replace the process (drum) cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-16
Description: Drum unit initial detection trouble (C drum)
Causes: When the newly installed drum is driven for the specified time after installation, the new state is not canceled. (C) Detection switch [DRCRU-C] trouble Process cartridge trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM30-1 to check the operation of the [DRCRU-C] switch. Replace the process (drum) cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-17
Description: Drum unit initial detection trouble (M drum)
Causes: When the newly installed drum is driven for the specified time after installation, the new state is not canceled. (M) Detection switch [DRCRU-M] trouble Process cartridge trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM30-1 to check the operation of the [DRCRU-M] switch. Replace the process (drum) cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-18
Description: Drum unit initial detection trouble (Y drum)
Causes: When the newly installed drum is driven for the specified time after installation, the new state is not canceled. (Y) Detection switch [DRCRU-Y] trouble Process cartridge trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM30-1 to check the operation of the [DRCRU-Y] switch. Replace the process (drum) cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-19
Description: Primary transfer unit initial detection trouble
Causes: When the newly installed primary transfer unit is driven for the specified time after installation, the new state is not canceled. 1TUD K sensor trouble Primary transfer initial operation clutch mechanism trouble Primary transfer unit initial detection level trouble PCU PWB trouble. Connection trouble of the connector and the harness. Primary transfer belt unit trouble.
Troubleshooting Guides: Use SIM30-1 to check the operation of the 1TUD-K sensor. Use SIM6-3 to check the switching operation of the primary transfer unit. Check to confirm that the initial detection level is inclined. Replace the PCU PWB. Check connection of the connector and the harness. Replace the primary transfer unit.

Code: F2-21
Description: Secondary transfer unit initial detection trouble
Causes: When the newly installed secondary transfer unit is driven for the specified time after installation, the new state is not canceled. PCU PWB trouble. Connection trouble of the connector and the harness. Secondary transfer UN initial detection mechanism trouble Initial detection electrode trouble Secondary transfer unit trouble.
Troubleshooting Guides: Check conduction of the initial detection electrode plate and the initial detection GND electrode plate. Replace the PCU PWB. Check connection of the connector and the harness. Replace the secondary transfer unit.

Code: F2-22
Description: Discharge lamp trouble (K)
Causes: Contact trouble between the discharge lamp PWB (K) and the PCU PWB. Discharge lamp PWB (K) trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the discharge lamp PWB (K). Check the harness and the connector. Replace the PCU PWB.

Code: F2-23
Description: Discharge lamp trouble (C)
Causes: Contact trouble between the discharge lamp PWB (C) and the PCU PWB. Discharge lamp PWB (C) trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the discharge lamp PWB (C). Check the harness and the connector. Replace the PCU PWB.

Code: F2-24
Description: Discharge lamp trouble (M)
Causes: Contact trouble between the discharge lamp PWB (M) and the PCU PWB. Discharge lamp PWB (M) trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the discharge lamp PWB (M). Check the harness and the connector. Replace the PCU PWB.

Code: F2-25
Description: Discharge lamp trouble (Y)
Causes: Contact trouble between the discharge lamp PWB (Y) and the PCU PWB. Discharge lamp PWB (Y) trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the discharge lamp PWB (Y). Check the harness and the connector. Replace the PCU PWB.

Code: F2-26
Description: Auto toner density control level setting trouble (K)
Causes: The toner density sample level is not in the specified range when the automatic toner density control level is set. (K) Toner density sensor trouble. Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: When the power is turned OFF/ON, the automatic developer adjustment is executed again. Replace the developer cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-27
Description: Auto toner density control level setting trouble (C)
Causes: The toner density sample level is not in the specified range when the automatic toner density control level is set. (C) Toner density sensor trouble. Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: When the power is turned OFF/ON, the automatic developer adjustment is executed again. Replace the developer cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-28
Description: Auto toner density control level setting trouble (M)
Causes: The toner density sample level is not in the specified range when the automatic toner density control level is set. (M) Toner density sensor trouble. Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: When the power is turned OFF/ON, the automatic developer adjustment is executed again. Replace the developer cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-29
Description: Auto toner density control level setting trouble (Y)
Causes: The toner density sample level is not in the specified range when the automatic toner density control level is set. (Y) Toner density sensor trouble. Developing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: When the power is turned OFF/ON, the automatic developer adjustment is executed again. Replace the developer cartridge. Replace the PCU PWB. Check connection of the connector and the harness.

Code: F2-39
Description: Process thermister trouble
Causes: Process thermister trouble. Process thermister harness connection trouble. PCU PWB trouble
Troubleshooting Guides: Replace the process thermister. Check connection of the harness and the connector. Replace the PCU PWB.

Code: F2-40
Description: Toner density sensor trouble (BLACK)
Causes: Toner density sensor output abnormality (Sample level 25 or less, or 231 or above) Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble
Troubleshooting Guides: Replace the toner density sensor. Harness and connector connection trouble. Replace the developing unit. Replace the PCU PWB.

Code: F2-41
Description: Toner density sensor trouble (CYAN)
Causes: Toner density sensor output abnormality (Sample level 25 or less, or 231 or above) Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble
Troubleshooting Guides: Replace the toner density sensor. Harness and connector connection trouble. Replace the developing unit. Replace the PCU PWB.

Code: F2-42
Description: Toner density sensor trouble (MAGENTA)
Causes: Toner density sensor output abnormality (Sample level 25 or less, or 231 or above) Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble
Troubleshooting Guides: Replace the toner density sensor. Harness and connector connection trouble. Replace the developing unit. Replace the PCU PWB.

Code: F2-43
Description: Toner density sensor trouble (YELLOW)
Causes: Toner density sensor output abnormality (Sample level 25 or less, or 231 or above). Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner density sensor. Harness and connector connection trouble. Replace the developing unit. Replace the PCU PWB.

Code: F2-45
Description: K image density sensor trouble
Causes: K image density sensor sensitivity adjustment trouble. K image density sensor trouble. Harness and connector connection trouble. K image density sensor dirt. Calibration plate dirt. Calibration plate solenoid trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the K image density sensor. Check connection of the connectors and the harness. Clean the K image density sensor. Replace the calibration plate. Replace the calibration plate solenoid. Replace the PCU PWB. Use SIM44-2 to adjust the process control sensor sensitivity.

Code: F2-49
Description: LSU thermister trouble
Causes: The LSU detection temperature is outside of -28..C – 78..C. LSU thermister trouble. Harness and connector connection trouble. PCU PWB trouble LSU control PWB trouble
Troubleshooting Guides: Replace the LSU thermister. Check connection of the connectors and the harness. Replace the PCU PWB. Replace the LSU control PWB. Replace the LSU.

Code: F2-50
Description: K drum phase sensor trouble
Causes: Drum phase sensor trouble. Harness and connector connection trouble. Drum drive section trouble. PCU PWB trouble
Troubleshooting Guides: Use SIM30-1 to check the operation of ‘DHPD_K.’. Replace the drum phase sensor. Check connection of the connectors and the harness. Repair the drum drive section. Replace the PCU PWB.

Code: F2-51
Description: CL drum phase sensor trouble
Causes: Drum phase sensor trouble. (DHPCL) Harness and connector connection trouble. Drum drive section trouble. PCU PWB trouble.
Troubleshooting Guides: Use SIM30-1 to check the operation of ‘DHPD_CL’. Replace the drum phase sensor. Check connection of the connectors and the harness. Repair the drum drive section. Replace the PCU PWB.

Code: F2-58
Description: Process humidity sensor trouble
Causes: Process humidity sensor trouble. Harness and connector connection trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the process humidity sensor. Check connection of the connectors and the harness. Replace the PCU PWB.

Code: F2-64
Description: Toner supply operation trouble (BK)
Causes: Toner motor trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble. Toner cartridge trouble. Developing unit trouble.
Troubleshooting Guides: Replace the toner motor. Replace the toner density sensor. Connector/harness trouble. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit.

Code: F2-65
Description: Toner supply operation trouble (C)
Causes: Toner motor trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble Toner cartridge trouble. Developing unit trouble.
Troubleshooting Guides: Replace the toner motor. Replace the toner density sensor. Connector/harness trouble. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit.

Code: F2-66
Description: Toner supply operation trouble (M)
Causes: Toner motor trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble Toner cartridge trouble. Developing unit trouble.
Troubleshooting Guides: Replace the toner motor. Replace the toner density sensor. Connector/harness trouble. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit.

Code: F2-67
Description: Toner supply operation trouble (Y)
Causes: Toner motor trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble Toner cartridge trouble. Developing unit trouble.
Troubleshooting Guides: Replace the toner motor. Replace the toner density sensor. Connector/harness trouble. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit.

Code: F2-70
Description: Improper toner cartridge detection (BLACK)
Causes: An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB.

Code: F2-71
Description: Improper toner cartridge detection (CYAN)
Causes: An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB.

Code: F2-72
Description: Improper toner cartridge detection (MAGENTA)
Causes: An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB.

Code: F2-73
Description: Improper toner cartridge detection (YELLOW)
Causes: An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB.

Code: F2-74
Description: Toner cartridge CRUM error (BLACK)
Causes: Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector/harness trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB. Connector/harness trouble.

Code: F2-75
Description: Toner cartridge CRUM error (CYAN)
Causes: Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector/harness trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB. Connector/harness trouble.

Code: F2-76
Description: Toner cartridge CRUM error (MAGENTA)
Causes: Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector/harness trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB. Connector/harness trouble.

Code: F2-77
Description: Toner cartridge CRUM error (YELLOW)
Causes: Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector/harness trouble.
Troubleshooting Guides: Replace the toner cartridge. Replace the PCU PWB. Connector/harness trouble.

Code: F2-78
Description: Registration image density sensor trouble (Transfer belt substrate reflection rate abnormality)
Causes: Image density (registration) sensor trouble (Sensor sensitivity adjustment trouble). PCU PWB trouble. Connection trouble of the connector and the harness. Image density (registration) sensor dirt. Transfer belt dirt, scratch.
Troubleshooting Guides: Replace the image density (registration) sensor. Replace the PCU PWB. Harness and connector connection trouble. Clean the image density (registration) sensor. Clean or replace the transfer belt.

Code: F3-12
Description: Paper feed tray 1 lift operation trouble
Causes: LUD1 is not turned ON within the specified time. CLUD1 sensor trouble Paper feed tray 1 lift unit trouble. PCU PWB trouble. Harness and connector connection trouble.
Troubleshooting Guides: Check connection of the harness and the connector of LUD1. Replace the lift-up unit. Replace the PCU PWB.

Code: H2-00
Description: Thermister open trouble (TH_UM_AD2)
Causes: Thermister trouble. PCU PWB trouble Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H2-01
Description: Thermister open trouble (TH_LM)
Causes: Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H2-02
Description: Sub thermister open trouble (TH_US)
Causes: Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H2-03
Description: Compensation thermister open trouble (TH_UM_AD1)
Causes: Thermister trouble. PCU PWB trouble Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H2-04
Description: Thermister open (TH_EX1)
Causes: Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H2-05
Description: Thermister open (TH_EX2)
Causes: Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Fusing unit not installed.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble.

Code: H3-00
Description: Fusing section high temperature trouble (TH_UM)
Causes: The fusing temperature exceeds the specified level. Thermister trouble. PCU PWB trouble Connection trouble of the connector and the harness. Power unit trouble.
Troubleshooting Guides: Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble. Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble. Replace the power unit.

Code: H3-01
Description: Fusing section high temperature trouble (TH_LM)
Causes: The fusing temperature exceeds the specified level. Thermister trouble. PCU PWB trouble.Harness and connector connection trouble. Power unit trouble.
Troubleshooting Guides: Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble. Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble. Replace the power unit.

Code: H3-02
Description: Fusing section high temperature trouble (TH_US)
Causes: The fusing temperature exceeds the specified level. Thermister trouble. PCU PWB trouble Connection trouble of the connector and the harness. Power unit trouble.
Troubleshooting Guides: Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble. Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble. Replace the power unit.

Code: H3-04
Description: Fusing section high temperature trouble (TH_EX1)
Causes: The fusing temperature exceeds the specified level. Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Power unit trouble. Fusing unit not installed.
Troubleshooting Guides: Replace the power unit. Replace the PCU PWB. Harness and connector connection trouble. Use SIM14 to cancel the trouble.

Code: H3-05
Description: Fusing section high temperature trouble (TH_EX2)
Causes: The fusing temperature exceeds the specified level. Thermister trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Power unit trouble.
Troubleshooting Guides: Replace the thermister. Replace the PCU PWB. Harness and connector connection trouble. Replace the power unit. Use SIM14 to cancel the trouble.

Code: H4-00
Description: Fusing section low temperature trouble (TH_UM_AD2)
Causes: The fusing temperature does not reach the specified level within the specified time from turning ON the power relay. Thermister trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble.

Code: H4-01
Description: Fusing section low temperature trouble (TH_LM)
Causes: The fusing temperature does not reach the specified level within the specified time from turning ON the power relay. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble.

Code: H4-02
Description: Fusing section low temperature trouble (TH_US)
Causes: The fusing temperature does not reach the specified level within the specified time from turning ON the power relay. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble.

Code: H4-04
Description: Fusing section low temperature trouble (TH_EX)
Causes: The specified temperature is not reached within the specified time from starring warm-up. Thermister trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. Power unit trouble.
Troubleshooting Guides: Use SIM5-2 to check the operation of the heater lamp. Replace the thermister. Replace the PCU PWB. Check connection of the connector and the harness. Replace the heater lamp. Replace the power unit. Use SIM14 to cancel the trouble.

Code: H4-30
Description: Thermister input circuit trouble (TH_UM)
Causes: The values of TH_UM_AD1 and TH_UM_AD2 do not exceed the specified value (50 counts in AD value) within the specified time from turning ON the HL_UM. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp. Use SIM14 to cancel the trouble.

Code: H5-01
Description: 5 times continuous POD1 not-reach jam
Causes: A fusing jam is not canceled completely. (A jam paper remains.) POD1 sensor trouble. Fusing unit installation trouble. Connector, harness connection trouble. PCU PWB trouble
Troubleshooting Guides: Replace the POD1 sensor. Check the installing position of the fusing unit. Replace the fusing unit. Check connection of the connector and the harness. Replace the PCU PWB. Use SIM14 to cancel the trouble.

Code: H7-10
Description: Fusing low temperature recovery trouble (TH_UM_AD2).
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-11
Description: Fusing low temperature recovery trouble (TH_LM)
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-12
Description: Fusing low temperature recovery trouble (TH_US)
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Troubleshooting Guides: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-14
Description: Low temperature trouble (TH_EX) in reset operation after JOB stop due to a fall in the fusing temperature during a JOB.
Causes: The specified temperature is not reached within the specified time in reset operation of the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. Connector, harness connection trouble. Power unit trouble.
Troubleshooting Guides: Use SIM5-2 to check the operation of the heater lamp. Replace the thermister. Replace the PCU PWB. Check connection of the connector and the harness. Replace the heater lamp. Replace the power unit. Use SIM14 to cancel the trouble.

Code: H8-00
Description: Fusing unit initial detection trouble
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. Fusing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-51 to check the operations of the [FUCRU] fuse blowing circuit. Use SIM30-1 to check the [FUCRU] initial detection input signal. Replace the fusing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: L1-00
Description: Scanner feed trouble
Causes: Scanner feed is not completed within the specified time. Scanner unit trouble. SCU PWB trouble Scanner control PWB trouble. Harness and connector connection trouble. Scanner home position sensor trouble. Scanner motor trouble.
Troubleshooting Guides: Use SIM1-1 to check the scan operation. Replace the scanner unit. Replace the SCU PWB. Check connection of the connectors and the harness. Replace the scanner home position sensor. Replace the scanner motor.

Code: L3-00
Description: Scanner return trouble
Causes: Scanner return is not completed within the specified time. Scanner unit trouble. SCU PWB trouble Scanner control PWB trouble. Harness and connector connection trouble. Scanner home position sensor trouble. Scanner motor trouble.
Troubleshooting Guides: Use SIM1-1 to check the scan operation. Replace the scanner unit. Replace the SCU PWB. Check connection of the connectors and the harness. Replace the scanner home position sensor. Replace the scanner motor.

Code: L4-03
Description: Fusing motor lock trouble
Causes: The motor lock signal is detected during rotation of the fusing motor. Fusing motor trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use Sim6-1 to check the operation of the fusing motor. Replace the fusing motor. Replace the PCU PWB. Check connection of the connector and the harness.

Code: L4-04
Description: Developing motor trouble (BLACK)
Causes: The motor lock signal is detected during rotation of the developing motor. Developing motor trouble. Harness and connector connection trouble. PCU PWB trouble Developing unit trouble.
Troubleshooting Guides: Use SIM25-1 to check the operation of the developing motor. Replace the developing motor. Check connection of the connectors and the harness. Replace the PCU PWB. Replace the developing motor. Replace the developing unit.

Code: L4-05
Description: Developing motor trouble (COLOR)
Causes: The motor lock signal is detected during rotation of the developing motor. Developing motor trouble. Harness and connector connection trouble. PCU PWB trouble Developing unit trouble.
Troubleshooting Guides: Use SIM25-1 to check the operation of the developing motor. Replace the developing motor. Check connection of the connectors and the harness. Replace the PCU PWB. Replace the developing motor. Replace the developing unit.

Code: L4-06
Description: Transfer unit lift trouble
Causes: Transfer unit position sensor trouble. PCU PWB trouble. Connection trouble of the connector and the harness. Transfer unit separation clutch operation trouble. Primary transfer belt unit is not installed.
Troubleshooting Guides: Use SIM6-3 to check the separating operation of the transfer unit. Install the primary transfer belt unit. Replace the transfer unit position sensor. Replace the PCU PWB. Harness and connector connection trouble. Replace the transfer unit separation clutch.

Code: L4-12
Description: Secondary transfer separation trouble
Causes: A change in the state of the separation sensor is not detected in the specified time during separating operation of the secondary transfer unit. Secondary transfer unit separation mechanism trouble Secondary transfer unit separation motor trouble. Secondary transfer unit separation sensor trouble. Connection trouble of the connector and the harness. PCU PWB trouble.
Troubleshooting Guides: Check the operation of the secondary transfer unit separation mechanism. Replace the secondary transfer unit separation motor. Replace the secondary transfer unit separation sensor. Check connection of the connector and the harness. Replace the PCU PWB.

Code: L4-16
Description: Fusing pressure release trouble
Causes: No change in the fusing pressure release sensor signal is detected within the specified time after turning ON the fusing pressure release solenoid. Fusing pressure release sensor trouble. Fusing pressure release solenoid trouble. Fusing pressure release level F, R trouble. PCU PWB trouble. Fusing motor trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Replace the fusing pressure release sensor. Replace the fusing pressure release solenoid. Replace the fusing pressure release lever F, R. Replace the PCU PWB. Fusing motor trouble. Harness and connector connection trouble.

Code: L4-29
Description: HDD fan trouble
Causes: The fan lock signal is detected during rotation of the HDD fan. HDD fan trouble. MFP PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-2 to check the operation of the fan motor. Replace the HDD fan. Replace the MFP PWB. Replace the connector or the harness.

Code: L4-31
Description: Paper exit cooling fan trouble
Causes: The fan operation signal is not detected within the specified time in the paper exit cooling fan operation. Paper exit cooling fan trouble. PCU PWB trouble Connection trouble of the connector and the harness.
Troubleshooting Guides: Check connection of the connectors and the harness. Use SIM6-2 to check the rotating operation of the fan. Replace the paper exit cooling fan. Replace the PCU PWB.

Code: L4-32
Description: Power source cooling fan trouble
Causes: The fan operation signal is not detected within the specified time in the power cooling fan operation. Power cooling fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-2 to check the rotating operation of the fan. Replace the power cooling fan. Replace the PCU PWB. Check/replace the connector or the harness.

Code: L4-34
Description: LSU fan trouble
Causes: The fan rotation signal is not detected in the specified time during operation of the LSU fan. Connection trouble of the connector and the harness. LSU fan trouble. LSU control PWB trouble.
Troubleshooting Guides: Use Sim6-2 to check the operation of the fan. Check connection of the connector and the harness. Replace the LSU fan. Replace the LSU control PWB.

Code: L4-35
Description: Fusing cooling fan trouble
Causes: The fan operation signal is not detected within the specified time in the fusing cooling fan operation. Fusing cooling fan trouble. PCU PWB trouble Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM6-2 to check the rotating operation of the fan. Replace the fusing cooling fan. Replace the PCU PWB. Harness and connector connection trouble.

Code: L4-50
Description: Process fan trouble
Causes: The fan operation signal is not detected within the specified time in the process fan operation. Process fan trouble. PCU PWB trouble Connection trouble of the connector and the harness.
Troubleshooting Guides: Check that the fan is rotating after turning ON the power. Replace the process fan. Replace the PCU PWB. Harness and connector connection trouble.

Code: L4-51
Description: Process fan 2 trouble
Causes: The fan operation signal is not detected within the specified time in the process fan 2 operation. Process fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Check that the fan is rotating after turning ON the power. Replace the process fan 2. Replace the PCU PWB. Check connection of the connector and the harness.

Code: L6-10
Description: Polygon motor trouble
Causes: The motor does not reach the specified rpm in 7 sec after starting rotation of the polygon motor. Polygon motor trouble. LSU control PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM61-1 to check the operation of the polygon motor. Check connection of the connectors and the harness. Replace the polygon motor. Replace the LSU. Replace the LSU control PWB.

Code: L8-01
Description: Full wave signal detection error
Causes: No full wave signal is detected. PCU PWB trouble Power unit trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Replace the PCU PWB. Replace the power unit. Check connection of the connectors and the harness.

Code: L8-02
Description: Full wave signal error
Causes: An abnormality in the full wave signal frequency is detected. (The frequency is detected as 65Hz or above, or 45Hz or less.)PCU PWB trouble. Power unit trouble. Connection trouble of the connector and the harness. Power frequency, waveform abnormality.
Troubleshooting Guides: Replace the PCU PWB. Replace the power unit. Check connection of the connectors and the harness. Check the power waveform.

Code: L8-20
Description: MFP PWB – Mother board communication error
Causes: Mother board PWB – MFPC PWB connection trouble. MFP PWB trouble. Replace the mother board.
Troubleshooting Guides: Check connection between the mother board and the MFPC PWB. Check the earth line of the main unit. Replace the MFPC PWB. Replace the mother board.

Code: PC–
Description: Personal counter not detected
Causes: The personal counter is not installed. The personal counter is not detected.
Troubleshooting Guides: Check connection of the connectors and the harness. Replace the SCU PWB.

Code: U1-01
Description: Battery trouble
Causes: 1) Battery life 2) Battery circuit abnormality
Troubleshooting Guides: Check to confirm that the battery voltage is about 2.0V or above. Use SIM13 to cancel the trouble.

Code: U2-00
Description: MFP EEPROM read/write error
Causes: MFP PWB EEPROM trouble. EEPROM socket contact trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Use SIM16 to cancel the error. Replace the MFP PWB EEPROM. Replace the MFP PWB. Check the power environment.

Code: U2-05
Description: HDD/MFP PWB SRAM contents inconsistency
Causes: The HDD or the MFP PWB which differs from that before turning OFF the power is installed. HDD trouble. MFP PWB trouble.
Troubleshooting Guides: Use SIM16 to cancel the error. If there is backup data (export data by device cloning), import it.

Code: U2-10
Description: MFP PWB SRAM user authentication index check sum error
Causes: SRAM user index information (user authentication basic data) check sum error. MFP PWB SRAM trouble. Strong external noises.
Troubleshooting Guides: Use SIM16 to cancel the error. Transfer the user index information data in the HDD to the SRAM. Replace the MFP PWB.

Code: U2-11
Description: MFP PWB EEPROM counter check sum error
Causes: MFP PWB EEPROM trouble. EEPROM socket contact trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-22
Description: MFP PWB SRAM memory check sum error
Causes: The identifier which controls the communication management table stored in the SRAM and the FAX soft switch is not detected correctly. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Since the data of the communication management table and the FAX soft switch stored in the SRAM are initialized when an error occurs, register the deleted data again individually. Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-23
Description: MFP PWB SRAM memory individual data check sum error
Causes: The check sum value for individual data of the communication table and the sender registration does not match. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Turn OFF/ON the power to initialize the data related to the content of check sum error. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-24
Description: MFP PWB SRAM memory user authentication counter check sum error
Causes: MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Use SIM16 to cancel the error.

Code: U2-30
Description: MFP PWB and PCU PWB manufacturing No. data inconsistency
Causes: Inconsistency between the manufacturing No. saved in the PCU PWB and that in the MFP PWB. When replacing the PCU PWB or the MFP PWB, the EEPROM which was mounted on the PWB before replacement is not mounted on the new PWB. MFP PWB trouble. PCU PWB trouble
Troubleshooting Guides: Check that the EEPROM is properly set. Check to confirm that the EEPROM which was mounted on the PWB before replacement is mounted on the new PWB. Use SIM16 to cancel the error. Replace the MFP PWB. Replace the PCU PWB.

Code: U2-50
Description: HDD user authentication data check sum error
Causes: HDD trouble. MFP PWB trouble. Strong external noises.
Troubleshooting Guides: Initialize the data (one-touch, group, program, etc.) related to the check sum error by turning OFF/ON the power. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the HDD. Replace the MFP PWB.

Code: U2-80
Description: SCU PWB EEPROM read/write error
Causes: SCU PWB EEPROM trouble. SCU PWB trouble. EEPROM socket contact trouble.
Troubleshooting Guides: Replace the SCU PWB EEPROM. Replace the SCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.

Code: U2-81
Description: SCU PWB EEPROM check sum error
Causes: SCU PWB EEPROM trouble. Installation of non-initialized EEPROM. SCU PWB trouble. EEPROM socket contact trouble.
Troubleshooting Guides: Replace the SCU PWB EEPROM. Replace the SCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.

Code: U2-90
Description: PCU PWB EEPROM read/write error
Causes: PCU PWB EEPROM trouble. Installation of non-initialized EEPROM. PCU PWB trouble EEPROM socket contact trouble.
Troubleshooting Guides: Replace the PCU PWB EEPROM. Replace the PCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.

Code: U2-91
Description: PCU PWB EEPROM check sum error
Causes: PCU PWB EEPROM trouble. Installation of non-initialized EEPROM. PCU PWB trouble EEPROM socket contact trouble.
Troubleshooting Guides: Replace the PCU PWB EEPROM. Replace the PCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.

Code: U6-00
Description: PCU PWB – Desk paper feed unit communication error
Causes: Error when testing the communication line after turning ON the power or canceling the simulation. Connector, harness connection trouble. Desk control PWB trouble. PCU PWB trouble Strong external noises.
Troubleshooting Guides: Turn OFF/ON the power to cancel. Check the connector and the harness in the communication line. Replace the desk control PWB. Replace the PCU PWB.

Code: U6-01
Description: Desk paper feed tray 1 lift trouble
Causes: D1ULD does not turn ON within the specified time when lift-up operation. D1ULD sensor trouble. Desk control PWB trouble. Lift unit trouble. Connection trouble of the connector and the harness. PCU PWB trouble
Troubleshooting Guides: Replace the D1ULD sensor. Replace the desk control PWB. Replace the lift unit. Harness and connector connection trouble. Replace the PCU PWB.

Code: U6-02
Description: Desk paper feed tray 2 lift trouble
Causes: D2ULD does not turn ON within the specified time when lift-up operation. D2ULD sensor trouble. Desk control PWB trouble. Lift unit trouble. Connection trouble of the connector and the harness. PCU PWB trouble
Troubleshooting Guides: Replace the D2ULD sensor. Replace the desk control PWB. Replace the lift unit. Harness and connector connection trouble. Replace the PCU PWB.

Code: U6-03
Description: Desk paper feed tray 3 lift trouble
Causes: The D3ULD sensor is not turned ON within the specified time during lift-up operation. D3ULD sensor trouble. Desk control PWB trouble. Lift unit trouble. Connection trouble of the connector and the harness. PCU PWB trouble.
Troubleshooting Guides: Replace the D3ULD sensor. Replace the desk control PWB. Replace the lift unit. Check connection of the connector and the harness. Replace the PCU PWB.

Code: U6-10
Description: Desk paper feed unit paper transport motor trouble
Causes: Desk paper feed motor trouble (motor lock, motor rpm abnormality, overcurrent to the motor). Desk control PWB trouble. Connection trouble of the connector and the harness.
Troubleshooting Guides: Use SIM4-3 to check the operation of the desk transport motor. Replace the desk control PWB. Replace the desk paper feed motor. Harness and connector connection trouble.

Code: U6-50
Description: Desk – Main unit combination trouble
Causes: Improper combination between the main unit and the desk. Desk control PWB trouble.
Troubleshooting Guides: Install a desk which is proper for the main unit mode. Replace the desk control PWB.

Code: U7-50
Description: MFP PWB – Vendor machine communication error
Causes: Improper setting of the vendor machine specifications (SIMI26-3). Vendor machine trouble. MFP PWB trouble. Connector, harness connection trouble. Strong external noises.
Troubleshooting Guides: Cancel the error by turning OFF/ON the power. Check the connector and the harness in the communication line. Change the specifications of the vendor machine (SIM26-3). Replace the LCC control PWB. Replace the MFP PWB.

Code: U7-51
Description: Vendor machine error
MFP (Notification of a trouble from the serial vendor)
Causes: Serial vendor machine trouble. Connector, harness connection trouble.
Troubleshooting Guides: Err.XX’ is displayed on the operation panel of the vendor. (XX is the detail code.) Repair the vendor machine referring to the detail code. Check the connector and the harness in the communication line.K

Code: UC-02
Description: IPD ASIC (CPT) error
Causes: IPD ASIC (CPT) operation error SCN PWB trouble.
Troubleshooting Guides: Replace the SCN PWB.

Code: UC-20
Description: IPD ASIC (DOCC) error
Causes: IPD ASIC (DOCC) operation error SCN PWB trouble.
Troubleshooting Guides: Replace the SCN PWB.

Epson PX-730 Adjustment Program

– OS Support: only Windows Operating System.
– Because Adjprog.exe gets Hardware ID info => Antivirus will misunderstand Adjprog.exe is the virus ==> you need to disable antivirus before extract and run Epson PX-730 Adjustment Program or add to exclusion folder
– Limitation: Unlimited using on only 1 Computer.
– Epson PX-730 AdjProg or Epson PX-730 Adjustment Program or Epson PX-730 Adj Program, is a middleware developed by third-party software to supply for Epson PX-730 printer, making printer continuous printing without error.

– Epson PX-730 Adjustment Program is featured with clearing the waste ink counter, ultra-deep clean to clean the printhead, adjust the smoothness of the printhead, adjust the motor headers, and fix the errors: no printing, lack of colour printing, colour blur, prints with horizontal and vertical stripes…

Epson PX-730 Adjustment Functions:

– Bi-D Adjustment
– USB ID Input
– Initial Ink Charge
– Deep Cleaning the Print Head
– Reset Waste Ink Pad Counter
– Head ID Setting
– EEPROM initial setting
– Top margin Adjustment

Using Epson PX-730 Adjustment Program

– Choose printer model and usb connection

– Choose Particular Adjustment Mode

Using Epson PX-730 Adjustment Program Step 2

– Choose Waste Ink Pad Counter

Using Epson PX-730 Adjustment Program Step 4

– Read Waste Ink Pad Counter

Using Epson PX-730 Adjustment Program Step 5

– Reset Waste Ink Pad Counter

Using Epson PX-730 Adjustment Program Step 6

Active Epson PX-730 Adjustment Program

– Run Adjprog.exe, Copy PX-730 Hardware ID, send it to admin email : [email protected] to get serial key and then active Epson PX-730 Adjustment Program.