Sharp MXB476W with list Error Codes and Epson L312 Adjustment Program

Sharp MXB476W Printer with list Error Codes and Epson L312 Adjustment Program

– Printer model: Sharp MXB476W
– Error codes on Sharp MXB476W with details instruction fixing:

Code: A0-01
Description: PCU ROM error
Causes: The firmware version up is not completed properly by interruption of the power during the version up operation
PCU PWB trouble
Troubleshooting Guides: SIM49-1 to execute the firmware version up
Replace PCU PWB

Code: A0-02
Description: SCN ROM error
Causes: The firmware version up is not completed properly by interruption of the power during the version up operation.
SCN-cnt PWB trouble
Troubleshooting Guides: SIM49-1 to execute the firmware version up
Replace SCN-cnt PWB

Code: A0-06
Description: FAX ROM error
Causes: The content of FAX ROM is abnormal The firmware version up is not completed properly by interruption of the power during the version up operation.
MFPC PWB trouble
Troubleshooting Guides: SIM49-1 to execute the firmware version up
Replace MFPC PWB

Code: A0-10
Description: MFP ROM error
Causes: The content of the color profile is abnormal
Combination inconsistency between MFP firmware and color profile
Troubleshooting Guides: SIM49-1 to execute the firmware version up
Replace MFP PWB

Code: A0-15
Description: Stored DSK data conflict
Causes: Inconsistency of ASIC MAIN firmware version
Troubleshooting Guides: Check ASIC MAIN firmware version
Check installation state of TPM PWB
Check installation state of EEPROM

Code: A0-17
Description: UI data error
Causes: Inconsistency between UI contents and UI firmware version
Troubleshooting Guides: SIM49-1 to execute the firmware version up

Code: A0-18
Description: ASIC MAIN firmware inconsistent error
Causes: Inconsistency of ASIC firmware version in MFP
Troubleshooting Guides: SIM49-1 to execute the firmware version

Code: A0-19
Description: MFP boot error
Causes: ASIC trouble
Memory trouble
Troubleshooting Guides: Confirm eMMC connection
Check and replace the following parts separately (If not improving, replace parts will be returned to original parts once each time)
Replace MFPC PWB
Replace eMMC and MFPC PWB

Code: A0-20
Description: Conflict firmware and EEPROM data version( MFP)
Causes: Inconsistency between MFP firmware version and EEPROM data version
Troubleshooting Guides: SIM49-1 to execute the firmware version up

Code: A0-21
Description: Conflict firmware and EEPROM data version( PCU)
Causes: Inconsistency between PCU firmware version and EEPROM data version
Troubleshooting Guides: SIM49-1 to execute the firmware version up

Code: A0-22
Description: Conflict firmware and EEPROM data version( SCU)
Causes: Inconsistency between SCN firmware version and EEPROM data version
Troubleshooting Guides: SIM49-1 to execute the firmware version up

Code: E6-10
Description: Shading error(Black level) (SPF)
Causes: CCD unit connector, harness connection trouble
CCD unit trouble
DSPF PWB trouble
Troubleshooting Guides: Check connection state of CCD unit connector, harness
Replace CCD unit
Replace DSPF PWB

Code: E6-11
Description: Shading error(White level) (SPF)
Causes: CCD unit connector, harness connection trouble
Scanner lamp lighting trouble
Dirt on mirror, reference white plate
CCD unit trouble
DSPF PWB trouble
Troubleshooting Guides: Check connection state of CCD unit connector, harness
Check connection state of scanner lamp connector, harness
Clean the reference white plate
Replace CCD unit
Replace DSPF PWB
SIM63-2 to execute

Code: E6-14
Description: CCD-ASIC error(SPF)
Causes: DSPF PWB trouble
Troubleshooting Guides: Replace DSPF PWB

Code: E7-01
Description: Image data error
Causes: Image data transfer error in MFPC PWB
MFPC PWB trouble
Troubleshooting Guides: Check connection state of MFPC PWB connector, harness
Replace MFPC PWB

Code: E7-03
Description: HDD error
Causes: MFPC PWB and HDD connector, harness connection trouble
HDD trouble
MFPC PWB trouble
Troubleshooting Guides: Check connection state of MFPC PWB and HDD connector, harness
SIM62-2, 62-3 to execute
Replace HDD
Replace MFPC PWB

Code: E7-04
Description: HDD-ASIC error
Causes: HDD-ASIC trouble
Troubleshooting Guides: Replace MFPC PWB

Code: E7-10
Description: Shading error(Black level)
Causes: CCD unit connector, harness connection trouble
CCD unit trouble
SCN-cnt PWB trouble
Troubleshooting Guides: Check connection state of CCD unit connector, harness
Replace CCD unit
Replace SCN-cnt PWB

– Sharp MXB476W printer Error Codes and quick guide on repairing:

Code: E7-11
Description: Shading error(White level)
Causes: CCD unit connector, harness connection trouble
Dirt on mirror, lens and white reference plate
Copy lamp lighting trouble
CCD unit trouble
SCN-cnt PWB trouble
Troubleshooting Guides: Check connection state of CCD unit connector, harness
Check connection state of Copy lamp unit connector, harness
Clean mirror, lens and white reference plate
Replace CCD unit
Replace SCN-cnt PWB

Code: E7-14
Description: CCD-ASIC error
Causes: SCN-cnt PWB trouble
Troubleshooting Guides: Replace SCN-cnt PWB

Code: E7-20
Description: LSU BD detection error
Causes: Reduced laser power, lighting error, laser diode trouble
LSU connector, harness connection trouble
LSU unit trouble
LSU-cnt PWB trouble
Troubleshooting Guides: SIM61-1 to execute
Check connection state of LSU connector, harness
Replace LSU-cnt PWB
Replace LSU unit

Code: E7-21
Description: LSU LD deterioration error
Causes: Reduced laser power, lighting error, laser diode trouble
LSU connector, harness connection trouble
LSU unit trouble
LSUcnt PWB trouble
Troubleshooting Guides: SIM61-1 to execute
Check connection state of LSU connector, harness
Replace LSUcnt PWB
Replace LSU unit

Code: E7-28
Description: Connection error between PCU and LSU
Causes: Communication error between LSU ASIC and PCU PWB
Connector, harness connection trouble
PCU PWB trouble
LSUcnt PWB trouble
Troubleshooting Guides: Check connection of the connector and the harness
between the PCU PWB and the LSUcnt PWB
Replace PCU PWB
Replace LSUcnt PWB

Code: E7-29
Description: LSU-ASIC frequency error
Causes: Oscillation abnormality of the external oscillator used in the LSU ASIC.
LSU ASIC abnormality on the LSUcnt PWB.
Frequency abnormality of picture transfer clock of MFPC PWB.
MFPC PWB trouble
Troubleshooting Guides: Replace LSUcnt PWB
Replace MFPC PWB
Check connection of the connector and the harness
between the MFPC PWB and the LSUcnt PWB.

Code: E7-49
Description: Water Mark data error
Causes: Watermark data error
HDD trouble
If watermark data is not installed, U2-60 is displayed at
startup
Troubleshooting Guides: SIM62-02/SIM62-03 to execute
SIM49-5 to execute
Replace HDD

Code: E7-50
Description: PCU PWB and firmware inconsistent error
Causes: Machine incompatible PWB and firmware
PCU PWB trouble
LSU unit trouble
Troubleshooting Guides: Check firmware version
Replace PCU PWB
Replace LSU unit

Code: E7-55
Description: PCU EEPROM sum check error
Causes: Machine incompatible PWB and firmware
PCU PWB trouble
Troubleshooting Guides: Check firmware version
Replace PCU PWB

Code: E7-60
Description: Mismatched Board or Firmware with MFP
Causes: Machine incompatible PWB and firmware
MFPC PWB trouble
Troubleshooting Guides: Check firmware version
Replace MFPC PWB

Code: E7-61
Description: Mismatched MFP and PCU
Causes: Combination error of MFPC PWB and PCU PWB
MFPC PWB trouble
Troubleshooting Guides: Check combination of MFPC PWB and PCU PWB
Replace MFPC PWB

Code: E7-80
Description: Communication error between MFP and SCU
Causes: MFPC PWB connector, harness connection trouble
MFPC PWB trouble
Troubleshooting Guides: Check connection state of MFPC PWB connector, harness
Replace MFPC PWB

Code: E7-90
Description: Communication error between MFP and PCU
Causes: MFPC PWB, PCU PWB connector, harness connection trouble
MFPC PWB trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of SCN MFP PWB, PCU PWB connector, harness
Replace SCN MFP PWB
Replace PCU PWB

Code: E7-91
Description: Decode error (FAX received image data)
Causes: Image compression data corruption
HDD trouble
mSATA eMMC trouble
MFPC PWB trouble
FAX PWB trouble
Troubleshooting Guides: SIM60-1 to execute
Replace HDD
Replace mSATA eMMC
Replace MFPC PWB
Replace FAX PWB

Code: E7-92
Description: Decode error (Copy image data)
Causes: Image compression data corruption
MFPC PWB trouble
Troubleshooting Guides: SIM60-1 to execute
Replace HDD
Replace MFPC PWB

Code: E7-93
Description: Decode error (except Copy and Fax)
Causes: Image compression data corruption
HDD trouble
MFPC PWB trouble
Troubleshooting Guides: SIM60-1 to execute
Replace HDD
Replace MFPC PWB

Code: E7-94
Description: Decode error (Filing image data)
Causes: Image compression data corruption
HDD trouble
MFPC PWB trouble
Troubleshooting Guides: SIM60-1 to execute
Replace HDD
Replace MFPC PWB

Code: E7-A8
Description: mSATA eMMC error
Causes: mSATA eMMC contact trouble
mSATA eMMC trouble
MFPC PWB trouble
Troubleshooting Guides: Check contact state of mSATA eMMC
Replace mSATA eMMC
Replace MFPC PWB

Code: E7-C0
Description: TPM PWB data access error
Causes: TPM PWB connection trouble
TPM PWB used in other MFP was attached
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of TPM PWB connector, harness

Code: E7-C1
Description: Security check error
Causes: Program error
TPM PWB trouble
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of TPM PWB connector, harness

Code: E7-C2
Description: Firmware check sum error
Causes: Program corruption due to storage error.
Program error
Troubleshooting Guides: Power OFF/ON to cancel

Code: E7-C3
Description: Firmware error
Causes: Program corruption due to storage error.
Program error.
Troubleshooting Guides: > When ‘ This system can boot up in CN mode, Please turn the dip-switch ON ‘ is displayed Execute firmware update in CN update function.
> When ‘ This system cannot boot up in any mode ‘ is displayed Replace eMMC PWB.

Code: EE-EC
Description: Automatic toner density adjustment error (Sampling abnormal)
Causes: Sensor (TCS) trouble
Charging voltage / developing voltage problem trouble
Developing unit trouble
PCU PWB trouble
Troubleshooting Guides: Replace developing unit
Replace PCU PWB

Code: EE-EL
Description: Automatic toner density adjustment error (Over toner)
Causes: Sensor (TCS) trouble
Charging voltage / developing voltage problem trouble
Developing unit trouble
PCU PWB trouble
Troubleshooting Guides: Replace developing unit
Replace PCU PWB

Code: EE-EU
Description: Automatic toner density adjustment error (Under toner)
Causes: Sensor (TCS) trouble
Charging voltage / developing voltage problem trouble
Developing unit trouble
PCU PWB trouble
Troubleshooting Guides:

Code: F1-03
Description: Finisher paper delivery roller lift operation trouble
Causes: Connector, harness connection trouble
Delivery roller position detector (FDRPS) trouble
Delivery roller motor (FDRLM) trouble
Finisher control PWB trouble
Troubleshooting Guides: SIM3-3 to execute
Check connection state of connector, harness
Replace Delivery roller position detector (FDRPS)
Replace Delivery roller motor (FDRLM)
Replace finisher control PWB

Code: F1-10
Description: Finisher staple motor trouble
Causes: Connector, harness connection trouble
Finisher staple home position sensor (FSHPS) trouble
Staple motor (FSM) trouble
Finisher control PWB trouble
Troubleshooting Guides: SIM3-3 to execute
Check connection state of connector, harness
Replace Finisher staple home position sensor (FSHPS)
Replace staple motor (FSM)
Replace finisher control PWB

Code: F1-15
Description: Finisher paper exit tray lift operation trouble
Causes: Connector, harness connection trouble
Finisher tray lift motor (FTLM) trouble
Finisher control PWB trouble
Troubleshooting Guides: SIM3-3 to execute
Check connection state of connector, harness
Replace Finisher tray lift motor (FTLM)
Replace finisher control PWB

Code: F1-19
Description: Finisher paper alignment operation trouble F
Causes: Connector, harness connection trouble
Paper alignment F HP Sensor (FAPHPS-F) trouble
Paper alignment motor F (FPAM-F) trouble
Finisher control PWB trouble
Troubleshooting Guides: SIM3-3 to execute
Check connection state of connector, harness
Replace Paper alignment F HP Sensor (FAPHPS-F)
Replace Paper alignment motor F (FPAM-F)
Replace finisher control PWB

Code: F1-20
Description: Finisher paper alignment operation trouble R
Causes: Connector, harness connection trouble
Paper alignment R HP sensor (FAPHPS-R) trouble
Paper alignment motor R (FPAM-R) trouble
Finisher control PWB trouble
Troubleshooting Guides: SIM3-3 to execute
Check connection state of connector, harness
Replace Paper alignment R HP sensor (FAPHPS-R)
Replace Paper alignment motor R (FPAM-R)
Replace finisher control PWB

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

Code: F1-29
Description: Finisher Board Cooling Fan trouble
Causes: Finisher board cooling fan lock
Finisher control PWB trouble
Connection trouble of the connector and the harness
Troubleshooting Guides: SIM3-3 to check the operation of the control board
cooling fan (FBCF)
Replace the finisher board cooling 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

Code: F1-50
Description: Combination error Finisher and Main body
Causes: Improper combination between main machine and finisher
Finisher control PWB trouble
Troubleshooting Guides: Install finisher which is proper for main machine
Replace finisher control PWB

Code: F1-55
Description: Finisher unit ROM error
Causes: Finisher firmware inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: F2-22
Description: Discharge lamp trouble
Causes: Connector, harness connection trouble
Discharge lamp trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace discharge lamp
Replace PCU PWB

Code: F2-39
Description: Temperature and humidity sensor trouble (temperature)
Causes: Connector, harness connection trouble
Sensor (TH/HUD) trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace sensor (TH/HUD)
Replace PCU PWB

Code: F2-40
Description: Toner concentration sensor trouble
Causes: Connector, harness connection trouble
DV unit trouble
Sensor (TCS) trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace DV unit
Replace PCU PWB

Code: F2-58
Description: Temperature and humidity sensor trouble (humidity)
Causes: Connector, harness connection trouble
Sensor (TH/HUD) trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace sensor (TH/HUD)
Replace PCU PWB

Code: F2-64
Description: Black toner supply trouble
Causes: Connector, harness connection trouble
DV unit trouble
Toner cartridge trouble
Toner transport pipe section trouble
Toner sensor (TCS) trouble
Toner motor (TNM) trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace DV unit
Replace toner cartridge
Check transport pipe section
Replace Toner motor (TNM)
Replace PCU PWB

Code: F2-70
Description: Mismatched black toner cartridge
Causes: Improper toner cartridge is inserted
Toner cartridge trouble
PCU PWB trouble
Troubleshooting Guides: Replace toner cartridge
Replace PCU PWB

Code: F2-74
Description: Black CRUM error
Causes: Connector, harness connection trouble
Toner cartridge trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace toner cartridge
Replace PCU PWB

Code: F2-78
Description: Image density sensor error
Causes: Connector, harness connection trouble
Process control sensor (PCS) dirt or trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Clean sensor (PCS) or replace
Replace PCU PWB

Code: F6-00
Description: Communication error (MFP-FAX)
Causes: Connector, harness connection trouble
FAX PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace FAX PWB

Code: F6-01
Description: FAX EEPROM error
Causes: FAX EEPROM trouble
FAX EEPROM access trouble
Troubleshooting Guides: SIM66-3 to execute
Replace FAX EEPROM
Replace FAX PWB

Code: F6-02
Description: FAX PWB power supply trouble
Causes: Connector, harness connection trouble
DC PWB trouble
MFPC PWB trouble
FAX PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace DC PWB
Replace MFPC PWB
Replace FAX PWB

Code: F6-04
Description: FAX modem error
Causes: FAX modem chip operation trouble
Troubleshooting Guides: Replace FAX PWB

Code: F6-21
Description: Combination error (LIU-FAX soft SW setting)
Causes: Improper destination of LIU PWB
LIU PWB trouble
Troubleshooting Guides: Check proper destination of LIU PWB
Replace LIU PWB

Code: F6-30
Description: FAX power controller access error
Causes: Improper destination of TEL/LIU PWB
TEL/LIU PWB trouble
Troubleshooting Guides: Check proper destination of TEL/LIU PWB
Replace TEL/LIU PWB

Code: F6-97
Description: Combination error (FAX PWB-Main body)
Causes: Improper FAX PWB
FAX PWB trouble
Troubleshooting Guides: Replace FAX PWB

Code: F6-98
Description: Combination error(FAX-Main body destination)
Causes: Main machine and FAX destination inconsistency
Troubleshooting Guides: SIM26-6 to execute
Check FAX destination

Code: H2-00
Description: Thermistor open trouble (TH_UM_AD2)
Causes: Thermistor connector, harness connection trouble
Fusing section connector connection trouble
Thermistor trouble
PCU PWB trouble
AC PWB trouble
Fusing unit not installed
Troubleshooting Guides: SIM44-14 to execute
Check connection state of thermistor connector, harness
Check connection state of fusing section connector
Replace thermistor
Replace PCU PWB
Replace AC PWB trouble
Check fusing unit installed

Code: H2-02
Description: Thermistor open trouble (TH_US)
Causes: Thermistor connector, harness connection trouble
Fusing section connector connection trouble
Thermistor trouble
PCU PWB trouble
AC PWB trouble
Fusing unit not installed
Troubleshooting Guides: SIM44-14 to execute
Check connection state of thermistor connector, harness
Check connection state of fusing section connector
Replace thermistor
Replace PCU PWB
Replace AC PWB trouble
Check fusing unit installed

Code: H2-03
Description: Thermistor open trouble (TH_UM_AD1)
Causes: Thermistor connector, harness connection trouble
Fusing section connector connection trouble
Thermistor trouble
PCU PWB trouble
Fusing unit not installed
Fusing unit trouble
Troubleshooting Guides: SIM44-14 to execute
Check connection state of thermistor connector, harness
Check connection state of fusing section connector
Replace thermistor
Replace PCU PWB
Check fusing unit installed
Replace fusing unit

Code: H2-06
Description: Thermistor open trouble (TH_US2)
Causes: Thermistor connector, harness connection trouble
Fusing section connector connection trouble
Thermistor trouble
PCU PWB trouble
AC PWB trouble
Fusing unit not installed
Troubleshooting Guides: SIM44-14 to execute
Check connection state of thermistor connector, harness
Check connection state of fusing section connector
Replace thermistor
Replace PCU PWB
Replace AC PWB trouble
Check fusing unit installed

Code: H3-00
Description: Fuser high temperature trouble (TH_UM)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
PCU PWB trouble
AC PWB trouble
Troubleshooting Guides: SIM44-14 to execute
SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace PCU PWB
Replace AC PWB
SIM14 to cancel

Code: H3-02
Description: Fuser high temperature trouble (TH_US)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
PCU PWB trouble
AC PWB trouble
Troubleshooting Guides: SIM44-14 to execute
SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace PCU PWB
Replace AC PWB
SIM14 to cancel

Code: H4-00
Description: Fuser low temperature trouble (TH_UM)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
Heater lamp trouble
PCU PWB trouble
Thermostat trouble
AC PWB trouble
Troubleshooting Guides: SIM44-14 to execute
SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace heater lamp
Replace PCU PWB
Replace thermostat
Replace AC PWB
SIM14 to cancel

Code: H4-02
Description: Fuser low temperature trouble (TH_US)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
Heater lamp trouble
PCU PWB trouble
Thermostat trouble
AC PWB trouble
Troubleshooting Guides: SIM44-14 to execute
SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace heater lamp
Replace PCU PWB
Replace thermostat
Replace AC PWB
SIM14 to cancel

Code: H4-30
Description: Fuser differential input trouble (TH_UM)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
Heater lamp trouble
PCU PWB trouble
Troubleshooting Guides: SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace heater lamp
Replace PCU PWB
SIM14 to cancel

Code: H5-01
Description: 5 times continuous POD1 not reach jam
Causes: Fusing jam was not cancel completely (jam paper remains)
Fusing unit installation trouble
Fusing unit, drive section trouble
Sensor (POD1) connector, harness connection trouble
Sensor (POD1) trouble
PCU PWB trouble
Troubleshooting Guides: Check fusing unit installed
Check fusing drive section
Check connection state of sensor (POD1) connector, harness
Replace sensor (POD1)
Replace PCU PWB
Replace fusing unit
SIM14 to cancel

Code: H7-10
Description: Recovery error from fuser low temperature (TH_UM)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
Heater lamp trouble
PCU PWB trouble
Thermostat trouble
AC PWB trouble
Troubleshooting Guides: SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace heater lamp
Replace PCU PWB
Replace thermostat
Replace AC PWB

Code: H7-12
Description: Recovery error from fuser low temperature (TH_US)
Causes: Thermistor connector, harness connection trouble
Thermistor trouble
Heater lamp trouble
PCU PWB trouble
Thermostat trouble
AC PWB trouble
Troubleshooting Guides: SIM5-2 to execute
Check connection state of thermistor connector, harness
Replace thermistor
Replace heater lamp
Replace PCU PWB
Replace thermostat
Replace AC PWB

Code: L1-00
Description: Scanner feed trouble
Causes: Connector, harness connection trouble
Scanner unit trouble
Scanner HP sensor (MHPS) trouble
SCAN Motor (MIM) trouble
SCN-cnt PWB trouble
Troubleshooting Guides: SIM1-1 to execute
Check connection state of connector, harness
Replace scanner unit
Replace sensor (MHPS)
Replace motor (MIM)
Replace SCN-cnt PWB

Code: L3-00
Description: Scanner return trouble
Causes: Connector, harness connection trouble
Scanner unit trouble
Sensor (MHPS) trouble
Motor (MIM) trouble
SCN-cnt PWB trouble
Troubleshooting Guides: SIM1-1 to execute
Check connection state of connector, harness
Replace scanner unit
Replace sensor (MHPS)
Replace motor (MIM)
Replace SCN-cnt PWB

Code: L4-01
Description: Main motor lock trouble
Causes: Connector, harness connection trouble
Main motor trouble (MM)
PCU PWB trouble
Troubleshooting Guides: SIM6-1 to execute
Check connection state of connector, harness
Replace motor (MM)
Replace PCU PWB

Code: L4-14
Description: Toner cartridge motor lock trouble
Causes: Toner motor (TM) trouble
Toner motor rotation detection sensor (TM_COUNT) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM10-1 to execute
SIM10-4 to execute
Check connection state of connector, harness
Replace motor (TNM)
Replace toner motor drive detect sensor
Replace PCU PWB
Replace detect sensor

Code: L4-17
Description: Drum motor lock trouble
Causes: Drum motor (DM) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM25-1 to execute
Check connection state of connector, harness
Replace motor (DM)
Replace PCU PWB

Code: L4-31
Description: Paper delivery cooling fan trouble
Causes: Paper delivery cooling fan motor trouble (POFM)
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM6-2 to execute
Check connection state of connector, harness
Replace fan (POFM)
Replace PCU PWB

Code: L4-32
Description: Power supply unit fan trouble
Causes: Power supply cooling fan motor (PSFM) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM6-2 to execute
Check connection state of connector, harness
Replace fan (PSFM)
Replace PCU PWB

Code: L4-35
Description: Fusing cooling fan trouble
Causes: Fusing cooling fan motor (FUFM) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM6-2 to execute
Check connection state of connector, harness
Replace fan (FUFM)
Replace PCU PWB

Code: L4-39
Description: Machine cooling fan trouble
Causes: Ventilation fan motor (VFM) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM6-2 to execute
Check connection state of connector, harness
Replace motor (VFM)
Replace PCU PWB

Code: L4-43
Description: Paper cooling fan trouble
Causes: Paper cooling fan motor (POFM2) trouble
Connector, harness connection trouble
PCU PWB trouble
Troubleshooting Guides: SIM6-2 to execute
Check connection state of connector, harness
Replace motor (POFM2)
Replace PCU PWB

Code: L6-10
Description: Polygon motor trouble
Causes: Connector, harness connection trouble
Motor (PGM) trouble
LSU PWB trouble
Troubleshooting Guides: SIM6-1 to execute
Check connection state of connector, harness
Replace LSU PWB
Replace LSU unit

Code: L8-01
Description: Full wave signal detection error
Causes: Connector, harness connection trouble
Power supply unit trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace power supply unit
Replace PCU PWB

Code: L8-02
Description: Abnormal full wave signal error
Causes: Connector, harness connection trouble
Power supply unit trouble
PCU PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace power supply unit
Replace PCU PWB

Code: L8-20
Description: Communication error of MFP/Mother board
Causes: MFPC PWB trouble
SCN-cnt PWB trouble
Troubleshooting Guides: Check main body ground
Replace MFPC PWB
Replace SCN-cnt PWB

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

Code: U1-01
Description: Battery trouble
Causes: Battery life
Battery circuit trouble
Troubleshooting Guides: Check battery voltage is 2.5V or above
Replace battery

Code: U2-00
Description: MFP EEPROM read/write error
Causes: EEPROM trouble
EEPROM socket contact trouble
Strong external noises
Troubleshooting Guides: Check power environment
Replace EEPROM
Replace MFPC PWB

Code: U2-05
Description: Account data error(HDD-MFP SRAM)
Causes: Authentication table error
If frequent occurrence of this error is found, the following devices may possibly be damaged
HDD/mSATA eMMC trouble
MFPC PWB trouble
Troubleshooting Guides: Replace HDD/mSATA eMMC
Replace MFPC PWB

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

Code: U2-30
Description: MFP and PCU manufacturing No. data inconsistency
Causes: When replacing MFPC PWB or PCU PWB, EEPROM which was mounted on PWB before replacement is not mounted on new PWB
Replace MFPC PWB
Replace PCU PWB
Troubleshooting Guides: Check EEPROM is properly set
Replace MFPC PWB
Replace PCU PWB

Code: U2-40
Description: mSATA eMMC system storage data area error
Causes: mSATA eMMC system storage data area error
Troubleshooting Guides: Power OFF/ON and backup data is written into mSATA eMMC and machine is automatically booted
Leave trouble occurrence in trouble history

Code: U2-41
Description: HDD storage data area error
Causes: File error occurs saved data area, disabling backup of saved file of machine adjustment value in HDD
Troubleshooting Guides: Power OFF/ON to cancel
Replace HDD
SIM62 to execute HDD format
SIM16 to cancel

Code: U2-42
Description: Machine adjustment data error
Causes: Saved file of machine adjustment value in mSATA eMMC and system saved data in HDD error
Troubleshooting Guides: Perform backup of mSATA eMMC and HDD
Replace HDD
SIM62 to execute HDD format.
SIM16 to cancel.
Ajust machine again and set adjustment values

Code: U2-50
Description: HDD user authentication data check sum error
Causes: HDD trouble
MFPC PWB trouble
Strong external noises
Troubleshooting Guides: Check data related to check sum error (address book, image send system registration data) and register again SIM16 to cancel.
Replace HDD
Replace MFPC PWB

Code: U2-60
Description: Water Mark check error
Causes: Watermark data trouble
MFPC PWB trouble
Troubleshooting Guides: SIM49-5 to execute
Replace MFPC PWB

Code: U2-70
Description: OCR dictionary check error
Causes: OCR dictionary data trouble
Troubleshooting Guides: SIM49-6 to execute

Code: U2-74
Description: Recovery data error
Causes: Data corruption due to storage error
Data abnormality
Troubleshooting Guides: SIM49-6 to execute

Code: U2-80
Description: SCU EEPROM read write error
Causes: EEPROM socket contact trouble
EEPROM trouble
SCN-cnt PWB trouble
Troubleshooting Guides: Check contact of EEPROM socket
Replace EEPROM
Replace SCN-cnt PWB
SIM16 to cancel

Code: U2-81
Description: SCU EEPROM check sum error
Causes: EEPROM socket contact trouble
EEPROM trouble
SCN-cnt PWB trouble
Troubleshooting Guides: Check contact of EEPROM socket
Replace EEPROM
Replace SCN-cnt PWB
SIM16 to cancel

Code: U2-90
Description: PCU EEPROM read write error
Causes: EEPROM socket contact trouble
EEPROM trouble
PCU PWB trouble
Troubleshooting Guides: Check contact of EEPROM socket
Check SIM adjustment values of engine and adjust again if they are improper
Replace EEPROM
Replace PCU PWB
SIM16 to cancel

Code: U2-91
Description: PCU EEPROM check sum error
Causes: EEPROM socket contact trouble
Replace EEPROM
Replace PCU PWB
Troubleshooting Guides: Check contact of EEPROM socket
Replace EEPROM
Replace PCU PWB
SIM16 to cancel

Code: U5-00
Description: Communication error between SPF and SCN-cnt PWB
Causes: Malfunction due to noises
Connector, harness connection trouble
SCN-cnt PWB trouble
DSPF PWB trouble
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of connector, harness
Replace SCN-cnt PWB
Replace DSPF PWB

Code: U6-00
Description: PCU PWB – Paper feed desk (paper feed tray3, 4) communication error
Causes: Malfunction due to noises
Connector, harness connection trouble
Desk control PWB trouble
PCU PWB trouble
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of connector, harness
Replace desk control PWB
Replace PCU PWB

Code: U6-01
Description: Desk paper feed tray 1 lift trouble
Causes: Connector, harness connection trouble
Sensor (D1ULD) trouble
Tray1 lift up motor (D1LM) trouble.
Desk tray1 control PWB trouble
Lift unit trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-2 to execute
Check connection state of connector, harness
Replace sensor (D1ULD)
Replace desk tray1 control PWB
Replace lift unit
Replace PCU PWB

Code: U6-02
Description: Desk paper feed tray 2 lift trouble
Causes: Connector, harness connection trouble
Sensor (D2ULD) trouble
Tray 2 lift up motor (D2LM) trouble.
Desk tray2 control PWB trouble
Lift unit trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-2 to execute
Check connection state of connector, harness
Replace sensor (D2ULD)
Replace desk tray2 control PWB
Replace lift unit
Replace PCU PWB

Code: U6-03
Description: Desk paper feed tray 3 lift trouble
Causes: Connector, harness connection trouble
Sensor (D3ULD) trouble
Tray3 lift up motor (D3LM) trouble.
Desk tray3 control PWB trouble
Lift unit trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-2 to execute
Check connection state of connector, harness
Replace sensor (D3ULD)
Replace desk tray3 control PWB
Replace lift unit
Replace PCU PWB

Code: U6-11
Description: Desk paper feed tray 1 transport trouble
Causes: Connector, harness connection trouble
Desk1 paper feed motor (D1PFM) trouble
Desk tray1 control PWB trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-3 to execute
Check connection state of connector, harness
Replace motor (D1PFM)
Replace desk tray1 control PWB
Replace PCU PWB

Code: U6-12
Description: Desk paper feed tray 2 transport trouble
Causes: Connector, harness connection trouble
Desk2 paper feed motor (D2PFM) trouble
Desk tray2 control PWB trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-3 to execute
Check connection state of connector, harness
Replace motor (D2PFM)
Replace desk tray2 control PWB
Replace PCU PWB

Code: U6-13
Description: Desk paper feed tray 3 transport trouble
Causes: Connector, harness connection trouble
Desk3 paper feed motor (D3PFM) trouble
Desk tray3 control PWB trouble
PCU PWB trouble
Troubleshooting Guides: SIM4-3 to execute
Check connection state of connector, harness
Replace motor (D3PFM)
Replace desk tray3 control PWB
Replace PCU PWB

Code: U6-30
Description: Desk communication error between paper feed tray 1 and tray 2
Causes: Desk paper feed tray 1 and 2 connector, harness connection trouble
Desk tray1 control PWB trouble
Desk tray2 control PWB trouble
Malfunction due to noise
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of connector, harness
Replace desk tray1 control PWB
Replace desk tray2 control PWB

Code: U6-40
Description: Desk communication error between paper feed tray 2 and tray 3
Causes: Desk paper feed tray 2 and 3 connector, harness connection trouble
Desk tray2 control PWB trouble
Desk tray3 control PWB trouble
Malfunction due to noise
Troubleshooting Guides: Power OFF/ON to cancel
Check connection state of connector, harness
Replace desk tray2 control PWB
Replace desk tray3 control PWB

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

Code: U6-55
Description: Desk firmware inconsistent error
Causes: Firmware version is inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: U6-56
Description: Desk paper feed tray 1 firmware error
Causes: Firmware version is inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: U6-57
Description: Desk paper feed tray 2 firmware error
Causes: Firmware version is inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: U6-58
Description: Desk paper feed tray 3 firmware error
Causes: Firmware version is inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: U6-70
Description: Desk firmware version mismatch error
Causes: Firmware version is inconsistency
Troubleshooting Guides: SIM49-1 to execute

Code: U7-50
Description: Communication error of Vendor machine / MFP
Causes: Strong external noises
Improper setting of vendor machine specifications
Vendor machine trouble
Connector, harness connection trouble
MFPC PWB trouble
Troubleshooting Guides: Power OFF/ON to cancel
Change specification of vendor machine
Check connection state of connector, harness
Replace MFPC PWB

Code: U7-51
Description: Vendor machine error
Causes: Vendor machine trouble
Connector, harness connection trouble
Troubleshooting Guides: Repair vendor machine referring to detailed error code
Check connection state of connector, harness

Code: U9-01
Description: Touch panel trouble
Causes: Connector, harness connection trouble
Touch panel trouble
MFPC PWB trouble
Troubleshooting Guides: Check connection state of connector, harness
Replace touch panel
Replace MFPC PWB

Code: UC-02
Description: SCAN ASIC IPD error
Causes: SCN-cnt PWB trouble
Troubleshooting Guides: Replace SCN-cnt PWB

Code: UC-12
Description: SCAN ASIC IPD error (DSPF detection)
Causes: DSPF PWB trouble
Troubleshooting Guides: Replace DSPF PWB

Code: UC-20
Description: SCAN ASIC DOCC error
Causes: SCN-cnt PWB trouble
Troubleshooting Guides: Replace SCN-cnt PWB

Code: UC-30
Description: SCAN ASIC DOCC error (DSPF detection)
Causes: DSPF PWB trouble
Troubleshooting Guides: Replace DSPF PWB

Epson L312 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 L312 Adjustment Program or add to exclusion folder
– Limitation: Unlimited using on only 1 Computer.
– Epson L312 AdjProg or Epson L312 Adjustment Program or Epson L312 Adj Program, is a middleware developed by third-party software to supply for Epson L312 printer, making printer continuous printing without error.

– Epson L312 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 L312 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 L312 Adjustment Program

– Choose printer model and usb connection

– Choose Particular Adjustment Mode

Using Epson L312 Adjustment Program Step 2

– Choose Waste Ink Pad Counter

Using Epson L312 Adjustment Program Step 4

– Read Waste Ink Pad Counter

Using Epson L312 Adjustment Program Step 5

– Reset Waste Ink Pad Counter

Using Epson L312 Adjustment Program Step 6

Active Epson L312 Adjustment Program

– Run Adjprog.exe, Copy L312 Hardware ID, send it to admin email : [email protected] to get serial key and then active Epson L312 Adjustment Program.