OKI ES4191 Error Codes list and solutions

OKI ES4191 Error Codes list and solutions

– Compatible Printer model: OKI ES4191
– OKI ES4191 Error Code description:

• Code: 002 … 005
• Display: Power OFF/ON
  002 : Error – 005 : Error
• Description: CPU Exception
• Troubleshooting Guides: Is the error display provided again? Yes Turn off and on the MFP. Replace the CU/ PU board.

• Code: 024
• Display: Inspection is required.
  024 : Error
• Description: Kanji Font Error
• Troubleshooting Guides:

• Code: 030
• Display: Inspection is required.
  030 : Error
• Description: CU RAM Check Error
• Troubleshooting Guides: Is the error display provided again? Yes Turn off and on the MFP. Replace the CU/ PU board.

• Code: 040
• Display: Inspection is required.
  040 : Error
• Description: CU EEPROM error
• Troubleshooting Guides: Is the error display provided again? Yes Turn off and on the MFP. Replace the CU/ PU board.

• Code: 042, 043, 045
• Display: Inspection is required.
  042 : Error
  043 : Error.
  045 : Error
• Description: Flash memory file system error
  Accessing the flash ROM directly mounted on the CU/ PU board failed.
• Troubleshooting Guides: Accessing the flash ROM directly mounted on the CU/ PU board failed. Turn off and on the MFP. Replace the CU/ PU board.

• Code: 049
• Display: Inspection is required.
  049 : Error
• Description: CU Engine Type Mismatch
  Resolution of a LED head as opposed to a unit model is mismatch.
• Troubleshooting Guides:

• Code: 054
• Display: Power OFF/ON
  054 : Error
• Description: A communication error of the scanner unit
  A communication error was detected between the Controller and scanner unit.
• Troubleshooting Guides: Record a value displayed far right at the bottom of LCD and turn on the power unit again.

• Code: 057
• Display: Power OFF/ON
  057 : Error
• Description: The timeout of command communication of the scanner
  The timeout of command communication was detected between the Controller and scanner unit (A sub code indicates a cause). 01: There is no ACK for a command to start scanning. 02: There is no ACK for a command to cancel scanning. 03: There is no ACK for a command to cancel SU.
• Troubleshooting Guides: Record a value displayed far right at the bottom of LCD and turn off/on the power unit.

• Code: 058
• Display: Power OFF/ON
  058 : Error
• Description: An error of the scanner controlling area
  An internal error was detected in the scanner controlling area ofthe Controller.
• Troubleshooting Guides: Record a value displayed far right at the bottom of LCD and turn off/on the power unit.

• Code: 062
• Display: Power OFF/ON
  062 : Error
• Description: USB Driver Error
• Troubleshooting Guides:

• Code: 064
• Display: Inspection is required.
  064 : Error
• Description: SD Card Missing Error
• Troubleshooting Guides: Is a SD Card installed in the unit, properly? No Reinstall the SD card.

• Code: 069
• Display: Inspection is required.
  069 : Error
• Description: NIC Chip Error
• Troubleshooting Guides:

Solve OKI ES4191 Error codes

• Code: 070
• Display: Power OFF/ON
  070 : Error
• Description: PostScript error
  Error is deteced inside the postscript core
• Troubleshooting Guides: Error is deteced inside the postscript core Take note of the address that is displayed on LCD. Turn off and on the MFP.

• Code: 072
• Display: Power OFF/ON
  072 : Error
• Description: Engine interface error or PU-CU interface error
• Troubleshooting Guides: Is the CU/PU board installed properly?
  Reinstall the CU/ PU board properly. Replace the CU/ PU board.

• Code: 073
• Display: Power OFF/ON
  073 : Error
• Description: Video error. An error was detected in expanding image data (an invalid data was received)
• Troubleshooting Guides: Is the CU/PU board installed properly? Does the error occur again?
  Reinstall it properly. Change the PC to a high-specification one or decrease the resolution, and perform printing again. Replace the CU/ PU board. Replace the interface cable. Reinstall the PC printer driver.
  Is the CU/PU board installed properly? Does the error occur again? Does the error depend on print data?
  Reinstall it properly. Perform printing again. Print other data. Replace the CU/PU board. Ask design people to analyze the data.

• Code: 075
• Display: Power OFF/ON
  075 : Error
• Description: Video error. An error was detected in expanding image data.
  Is the CU/PU installed properly?
• Troubleshooting Guides: Is the CU/PU installed properly?
  Reinstall it properly. Replace it.

• Code: 080
• Display: Power OFF/ON
  080 : Error
• Description: Parameter I/O Error
  An access error occurred in a storage point of a parameter by file damage.
• Troubleshooting Guides:

• Code: 081
• Display: Inspection is required.
  081 : Error
• Description: Parameter matching check error
  Reading from or writing into EEPROM or flash memory cannot be made properly.
• Troubleshooting Guides: Turn off and on the MFP. Replace the CU/PU board when the symptom persists.

• Code: 085
• Display: Inspection is required.
  085 : Error
• Description: SD Card ECC Error
  An ECC error was detected by read processing of a SD memory card.
• Troubleshooting Guides:

• Code: 104
• Display: Inspection is required.
  104 : Error
• Description: An engine EEPROM read/write error was detected.
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP Replace the CU/PU board.

• Code: 106
• Display: Inspection is required.
  106 : Error
• Description: Engine control logic error
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP Replace the CU/PU board.

• Code: 112
• Display: Inspection is required.
  112 : Error
• Description: The 2nd tray for a model different from the MFP was detected.
• Troubleshooting Guides: Is the 2nd tray for the MFP installed? No Install proper 2nd tray.

• Code: 121
• Display: Inspection is required.
  121 : Error
• Description: High-voltage power supply interface error
• Troubleshooting Guides: Is the cable between the CU/ PU board and the highvoltage power unit connected properly? Is a contact faulty?
  Reconnect it properly. Check the highvoltage line for no poor connection. Replace the highvoltage power supply.

• Code: 122
• Display: Inspection is required.
  122 : Error
• Description: Rear-fan error
• Troubleshooting Guides: Does the fan at the rear of the MFP operate? Is the connector of the fan connected properly?
  Be sure of the connection of the fan. Replace the CU/PU board. Connect the fan properly. Replace the CU/PU board.

• Code: 123
• Display: Inspection is required.
  123 : Error
• Description: Ambient humidity error or non connection of humidity sensor
• Troubleshooting Guides: Is the cable from the CU/PU board to the toner sensor board connected properly?
  Re-connect it properly. Replace the toner sensor board.

• Code: 124
• Display: Inspection is required.
  124 : Error
• Description: Ambient temperature error
• Troubleshooting Guides: Is the cable from the CU/PU board to the toner sensor board connected properly?
  Re-connect it properly. Replace the toner sensor board.

• Code: 127
• Display: Inspection is required.
  127 : Error
• Description: An error of exhaust fan of the Fuser
• Troubleshooting Guides: Is the fan’s connector properly connected? Does the error occur again?
  Connect properly. Replace the fan’s motor. Replace the PU board.

• Code: 128
• Display: Inspection is required. 128 : Error 05
• Description: Image drum fan error
• Troubleshooting Guides: Is the connector of the fan connected properly? Does the error occur again?
  Re-connect it properly. Replace the fan motor. Replace the CU/PU board.

• Code: 134
• Display: Inspection is required.
  134 : Error
• Description: LED head detection error (134=K)
• Troubleshooting Guides: Is the LED head installed properly? Is the LED head fuse broken? Does the error occur again?
  Install the LED head unit. Check the LED head fuse. Check the fuse. Turn off and on the MFP. Replace the LED head unit.

• Code: 153
• Display: Inspection is required.
  153 : Error
• Description: Image drum unit fuse-cut error
• Troubleshooting Guides: Is the image drum unit installed properly? Does the error occur again? Is the MFP recovered by replacing the toner sensor board.
  Re-install it. Turn off and on the MFP. Be sure of the cable connection from the CU/PU board to the toner sensor board, and then replace the toner sensor board. Replace the CU/PU board.

• Code: 163
• Display: Inspection is required.
  163 : Error
• Description: Toner sensor detection error (163=K). This error does not occur with the MFP in the factory shipped configuration.
• Troubleshooting Guides: Is the toner cartridge installed? Is the toner slide shutter set?
  Install the toner cartridge. Turn it to the fixed position. Turn off and on the MFP. Replace the toner sensor assembly.

• Code: 167
• Display: Inspection is required.
  167 : Error
• Description: Thermistor slope error
• Troubleshooting Guides: Does an error message appear? Does the error occur again? Yes Turn off and on the MFP. Turn off and on the MFP after leaving it for 30 minutes.

• Code: 170, 171
• Display: Inspection is required.
  170 : Error
  171 : Error
• Description: A fuser thermistor short or open circuit was detected.
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP. Replace the fuser unit.

• Code: 172, 173
• Display: Inspection is required.
  172 : Error
  173 : Error
• Description: A fuser thermistor temperature error (high or low temperature) was detected.
• Troubleshooting Guides: Does the error occur again? Turn off and on the MFP. Replace the fuser unit. Replace the lowvoltage power supply, and then replace the CU/PU board when the error occurs again.

• Code: 182
• Display: Inspection is required.
  182 : Error
• Description: Option unit I/F error
• Troubleshooting Guides: Does the error occur again? Turn off and on the MFP. Be sure of connector connection. Replace the option unit.

• Code: 190
• Display: Power OFF/ON
  190 : Error
• Description: System memory overflow
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP. Replace the CU/PU board.

• Code: 200, 201, 202
• Display: Inspection is required.
  200 : Error
  202 : Error
• Description: PU firmware download error
  An error occurred in rewriting the PU firmware.
• Troubleshooting Guides: An error occurred in rewriting the PU firmware. Turn off and on the MFP, and then redownload it (In general use of the MFP, this re-writing is not performed and this error does not occur).

• Code: 203, 204, 207, 208
• Display: Power OFF/ON
  203 : Error
  204 : Error
  207 : Error
  208 : Error
  213 : Error
  F0C : Error
  FFE : Error
  FFF : Error
• Description: CU program error (203 to 213 do not occur in general use of the MFP)
  Invalid processing was performed with a CU program.
• Troubleshooting Guides: Invalid processing was performed with a CU program. Replace the CU/PU board.

• Code: 209
• Display: Power OFF/ON
  209 : Download error
• Description: Custom Media Type table downloading failure
  Custom Media Type table downloading failed.
• Troubleshooting Guides: Custom Media Type table downloading failed. Turn off and on the MFP, and then redownload it (In general use of the MFP, this downloading is not performed and this error does not occur).

• Code: 213, F0C, FFE, FFF
• Display: Power OFF/ON
  203 : Error
  204 : Error
  207 : Error
  208 : Error
  213 : Error
  F0C : Error
  FFE : Error
  FFF : Error
• Description: CU program error (203 to 213 do not occur in general use of the MFP)
  Invalid processing was performed with a CU program.
• Troubleshooting Guides: Invalid processing was performed with a CU program. Replace the CU/PU board.

• Code: 231
• Display: Inspection is required.
  231 : Error
• Description: TAG interface error
  IA TAG interface error was detected. 01 : A short-circuit error. 02 : TAG communication error.
• Troubleshooting Guides: Be sure the toner cartridges and the image drums are properly set. Replace the toner cartridges. When the error occurs again after the image drums are re-installed, be sure of the cable connection from the CU/PU board to the toner sensor board.

• Code: 250
• Display: Power OFF/ON
  250 : Error
• Description: SD card error
• Troubleshooting Guides: .

• Code: 251
• Display: Inspection is required.
  251 : Error
• Description: SD card erasure error
• Troubleshooting Guides:

• Code: 802 … 808
• Display: PRESS POWER SW FOR 5SEC
  Error : 802
  Error : 803
  Error : 805
  Error : 807
  Error : 808
• Description: SU Exception
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP. Replace the SU board

• Code: 811, 812, 813
• Display: PRESS POWER SW FOR 5SEC
  Error : 811
  Error : 812
  Error : 813
• Description: SU Communication Error
  Communication error between the Controller and the Scanner Unit is detected.
• Troubleshooting Guides: Communication error between the Controller and the Scanner Unit is detected. Turn off and on the MFP.

• Code: 814
• Display: PRESS POWER SW FOR 5SEC
  Error : 814
• Description: SU FW Removed
  It is an error to notify that SU FW was erased by special key operation from a panel.
• Troubleshooting Guides: It is an error to notify that SU FW was erased by special key operation from a panel.

• Code: 890
• Display: PRESS POWER SW FOR 5SEC
  Error : 890
• Description: SU System Memory Overflow
• Troubleshooting Guides: Does the error occur again? Yes Turn off and on the MFP. Replace the SU board

• Code: 899
• Display: Power OFF/ON
  Error : 899
• Description: CU Disconnect
• Troubleshooting Guides:
  In the situation that communication between CU and SU was able to establish, SU FW detected that CU FW had disappeared from a communications path (an USB line).

• Code: 923
• Display: Power OFF/ON
  923 : Error
• Description: A lock error with black image drum
• Troubleshooting Guides: The image drum does not revolve properly. Does the error display is provided again by turning off and on the MFP?
  Be sure the image drum is properly installed properly. Replace the image drum unit. Replace the image drum motor.

• Code: 933
• Display: Power OFF/ON
  933 : Error
• Description: Tray-2 CPU clock frequency error
• Troubleshooting Guides:

• Code: 941, 942, 943
• Display: Power OFF/ON
  941 : Error
  942 : Error
  943 : Error
• Description: PU Error
  A PU error was detected. 941 : Watch Doc Timer Error 942 : Detection of Unassigned Interruption 943 : CPU Error Detection
• Troubleshooting Guides: Turn off and on the MFP. When this error occurs again, replace the CU/ PU board

• Code: 946
• Display: Power OFF/ON
  Error : 946
• Description: AC Voltage Zero-crossing Error
• Troubleshooting Guides:

• Code: 980
• Display: Inspection is required.
  980 : Error
• Description: Media jamming error around fuser.
  Media is jammed by entangling around the fuser.
• Troubleshooting Guides: Turn off the MFP. Replace the fuser.

– Get more information about Epson XP 15000 troubleshooting, click here

– Get more error code list with quick guide to fix printer product, click here
– About get help with reseting Epson inkpad or others, click here

Waste Ink Pad Counter Utility Functions:

– Cleaning printhead.
– Ink charge.
– Fix Epson red lights blinking Error

– Fix Epson Service Required Error: A printer’s ink pad at the end of its service life Please contact Epson Support.

– Check the current value of waste ink counters and ink level counters.
– Clear Waste Ink Counters.
– Read and write serial number.
– Read and write USB ID.
– Read and write HEAD ID.
– Make EEPROM dump, backup.
– Paper feed test.
– Nozzle check.
– Color check pattern.
– Initialize (disable) PF deterioration offset.
– Retrieve device information

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