OKI ES3037 Error Codes list and solutions

OKI ES3037 Error Codes list and solutions

– Compatible Printer model: OKI ES3037
– OKI ES3037 Error Code description:

• Code: 001 … 011
• Display: Service Call 001: Error ~ 011: Error
• Description: CPU Exception
• Causes: Does error display reappear?
• Troubleshooting Guides: Turn power OFF and ON. Replace TIG board. (Replace EEPROM)

• Code: 020
• Display: Service Call 020: Error
• Description: CU ROM Hash Check Error 1
• Causes: Is program ROM DIMM set properly? Is error recovered by replacing program ROM DIMM?
• Troubleshooting Guides: Reset program ROM DIMM. Replace program ROM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 030
• Display: Service Call 030: Error
• Description: CU Slot1 DIMM RAM Check Error
• Causes: Is subject RAM DIMM set properly? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 031
• Display: Service Call 031: Error
• Description: CU Slot2 DIMM RAM Check Error
• Causes: Is subject RAM DIMM set properly? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 032
• Display: Service Call 032: Error
• Description: CU Slot3 DIMM RAM Check Error
• Causes: Is subject RAM DIMM set properly? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 035
• Display: Service Call 035: Error
• Description: Slot1 RAM Spec Error. The CU RAM Slot1 DIMM specification is not supported.
• Causes: Is RAM DIMM genuine? Is subject RAM DIMM gap setting proper? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Use genuine RAM DIMM. Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 036
• Display: Service Call 036: Error
• Description: Slot2 RAM Spec Error. The CU RAM Slot2 DIMM specification is not supported.
• Causes: Is RAM DIMM genuine? Is subject RAM DIMM gap setting proper? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Use genuine RAM DIMM. Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 037
• Display: Service Call 037: Error
• Description: Slot3 RAM Spec Error. The CU RAM Slot3 DIMM specification is notsupported.
• Causes: Is RAM DIMM genuine? Is subject RAM DIMM gap setting proper? Is error recovered by replacing subject ROM DIMM?
• Troubleshooting Guides: Use genuine RAM DIMM. Reset subject RAM DIMM. Replace RAM DIMM. Replace TIG board. (Replace EEPROM)

• Code: 040
• Display: Service Call 040: Error
• Description: CU EEPROM Error
• Causes: Is error recovered by replacing EEPROM on CU board?
• Troubleshooting Guides: Replace EEPROM. (Recover user environment.) Replace TIG board. (Replace EEPROM)

• Code: 041
• Display: Service Call 041: Error
• Description: CU Flash Error Flash ROM error on CU board.
• Causes: Does error display reappear?
• Troubleshooting Guides: Replace TIG board. (Replace EEPROM.)

• Code: 042 … 044
• Display: Service Call 042: Error ~ 044: Error
• Description: Flash File SYSTEM Error
• Causes: Failed access to Flash set directly on CU board.
• Troubleshooting Guides: Press 0, 3, 5, 6 to turn power ON, release buttons when [FLASH FORMAT] appears, wait until [ON-LINE] (2sec) and replace TIG board if symptom does not change.

• Code: 048
• Display: Service Call 048: Error
• Description: CU ROM for PS+PCL was set in Non-PS device.
• Causes: Is proper program ROM set?
• Troubleshooting Guides: Replace program ROM DIMM. Replace with proper program ROM DIMM.

Solve OKI ES3037 Error codes

• Code: 049
• Display: Service Call 049: Error
• Description: CU type mismatch CU ROM does not match with the device.
• Causes: Is proper program ROM set?
• Troubleshooting Guides: Replace program ROM DIMM. Replace with proper program ROM DIMM.

• Code: 050
• Display: Service Call 050: Error
• Description: Operater Panel Error
• Causes: Does error display reappear?
• Troubleshooting Guides: Refer to no LCD display flow chart.

• Code: 051
• Display: Service Call 051: Error
• Description: CU Fan Error Abnormal CPU cooling fan on CU board.
• Causes: Is connector set properly on CU board? Is error recovered by replacing fan?
• Troubleshooting Guides: Connect properly. Replace fan. Replace TIG board. (Replace EEPROM.)

• Code: 063
• Display: Service Call 063: Error
• Description: Network comm. Error Abnormal H/W I/F between CU-NIC.
• Causes: Is network board set properly? Is error recovered by replacing network board?
• Troubleshooting Guides: Set properly. Replace Network. Replace TIG board. (Replace EEPROM.)

• Code: 065
• Display: Service Call 065: Error
• Description: NIC Combination Error
• Causes: Is proper Network board for the model set?
• Troubleshooting Guides: Replace NIC card. Replace with proper Network board (MLETB11, etc.).

• Code: 070
• Display: Service Call 070: Error
• Description: CANT_HAPPEN PS firmware fault detected.
• Causes: Confirm that error is recovered by turning power OFF/ON.
• Troubleshooting Guides: Replace TIG board. (Replace EEPROM.)

• Code: 072
• Display: Service Call 072: Error
• Description: Engine communication error I/F error between PU-CU.
• Causes: Is CU assembly set properly? Is error recovered by replacing TIG board?
• Troubleshooting Guides: Set properly. Replace TIG board. (Replace EEPROM.) Replace PU board.

• Code: 073 … 075
• Display: Service Call 073: Error ~ 075: Error
• Description: Video overrun detect
• Causes: Is CU assembly set properly? Is error recovered by replacing TIG board?
• Troubleshooting Guides: Set properly. Replace TIG board. (Replace EEPROM.)

• Code: 102
• Display: Service Call 102: Error
• Description: Error in engine RAM read/write detected at power ON.
• Causes: Does error reoccur?
• Troubleshooting Guides: Replace engine control board (K7N).

• Code: 103
• Display: Service Call 103: Error
• Description: Error in engine SRAM read/write detected at power ON.
• Causes: Does error reoccur?
• Troubleshooting Guides: Replace engine control board (K7N).

• Code: 104
• Display: Service Call 104: Error
• Description: Error in engine EEPROM check total detected at power ON.
• Causes: Does error reoccur?
• Troubleshooting Guides: Replace engine control board (K7N).

• Code: 105
• Display: Service Call 105: Error
• Description: EEPROM not detected at power ON.
• Causes: Does EEPROM exist? Does error reoccur?
• Troubleshooting Guides: Check for EEPROM and set if not found. Replace engine control board (K7N).

• Code: 106
• Display: Service Call 106: Error
• Description: Error in engine control logic detected at power ON.
• Causes: Does error reoccur?
• Troubleshooting Guides: Replace engine control board (K7N).

• Code: 107
• Display: Service Call 107: Error
• Description: Engine ROM check sum error.
• Causes: Does error reoccur? Is error recovered by reloading PU F/W?
• Troubleshooting Guides: Reload PU I/F. Replace engine control board (K7N).

• Code: 110 … 116
• Display: Service Call 110: Error ~ 116: Error 110: Envelope Feeder 111: Duplex unit 112: 2nd Tray 113: 3rd Tray 114: 4th Tray 115: 5th Tray 116: Finisher
• Description: Option unit for different model detected.
• Causes: Is a proper option unit for the printer set?
• Troubleshooting Guides: Set proper option unit. Check connections and turn power ON. If error is not recovered, replace the unit.

• Code: 120
• Display: Service Call 120: Error
• Description: PU unit fan motor error.
• Causes: 1) Is fan in PU unit operating? 2) Error reoccurs after replacing fan motor.
• Troubleshooting Guides: Replace fan motor. Replace engine control board (K7N). Replace engine control board (K7N).

• Code: 121
• Display: Service Call 121: Error
• Description: High-voltage power supply I/F error.
• Causes: Is cable between PU board andhighvoltage power LSI connected properly?
• Troubleshooting Guides: Connect properly. Replace high-voltage power supply. Check improper connections for high-voltage.

• Code: 122
• Display: Service Call 122: Error
• Description: Low-voltage power supply fan error. Low-voltage power supply temperature error.
• Causes: 1) Is fan in low-voltage power supply unit operating? 2) Error reoccurs after replacing fan motor
• Troubleshooting Guides: Replace fan motor. Replace low-voltage power supply. Replace low-voltage power supply.

• Code: 123
• Display: Service Call 123: Error
• Description: Improper environment humidity detected by sensor.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace humidity sensor.

• Code: 124
• Display: Service Call 124: Error
• Description: Improper environment temperature detected by sensor.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace humidity sensor.

• Code: 125
• Display: Service Call 125: Error
• Description: Error detected at MT home position.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace MT.

• Code: 126
• Display: Turn power OFF and wait 126: Dew error
• Description: Sensor dew error.
• Causes: Sensor dew error detected.
• Troubleshooting Guides: Turn ON power after a while.

• Code: 130
• Display: Service Call 130: Error
• Description: Temperature rise detected at LED head.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Leave alone for 30 min. Turn power OFF. Leave for 30 min., then turn power ON. Replace LED head.

• Code: 131 … 134
• Display: Service Call 131: Y Head 132: M Head 133: C Head 134: K Head
• Description: Same unit not detected upon power ON or opening cover.
• Causes: 1) Is error message displayed? 2) Is LED head properly set? 3) Does error reoccur?
• Troubleshooting Guides: Confirm that LED head is set properly. Turn power ON again. Replace LED head assembly.

• Code: 140 … 143
• Display: Service Call 140: Y ID 141: M ID 142: C ID 143: K ID
• Description: Error detected at proper ID position.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn power ON again. Replace drum assembly.

• Code: 150 … 153
• Display: Service Call 150: Y 151: M 152: C 153: K
• Description: When a fuse could not be disconnected in the ID unit.
• Causes: Is ID unit set properly?
• Troubleshooting Guides: Check cable connections and replace engine board.

• Code: 154
• Display: Service Call 154: Error
• Description: When belt unit fuse cannot be disconnected.
• Causes: Is belt unit set properly?
• Troubleshooting Guides: Check cable connections and replace engine board.

• Code: 155
• Display: Service Call 155: Error
• Description: When fuser unit fuse cannot be disconnected.
• Causes: Is fuser unit set properly?
• Troubleshooting Guides: Check cable connections and replace engine board.

• Code: 160 … 163
• Display: Service Call 160: Y Toner 161: M Toner 162: C Toner 163: K Toner
• Description: Error detected by toner sensor.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Replace toner sensor or assembly (Y71-PWB). Same as above.

• Code: 170, 171, 174, 175
• Display: Service Call 170: Error 171: Error 174: Error 175: Error
• Description: Short circuit in fuser thermistor or open detected (high temp. or low temp.)
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace thermistor and turn power OFF. Leave aside for 30 min.

• Code: 172, 176
• Display: Service Call 172: Error 176: Error
• Description: Thermistor indicates high-temperature error.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace thermistor and turn power OFF. Leave aside for 30 min.

• Code: 173, 177
• Display: Service Call 173: Error 177: Error
• Description: Thermistor indicates low-temperature error.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace thermistor and turn power OFF. Leave aside for 30 min.

• Code: 179
• Display: Service Call 179: Error
• Description: Wrong fuser standard.
• Causes: 1) Does fuser match with model and power voltage? 2) Error reoccurs after setting fuser properly.
• Troubleshooting Guides: Set proper fuser. Check if fuser is set properly. Replace fuser.

• Code: 180 … 186
• Display: Service Call 180: Error ~ 186: Error
• Description: Communication disability with option unit detected by engine.
• Causes: 1) Is error message displayed? 2) Does error reoccur?
• Troubleshooting Guides: Turn ON power again. Replace option unit.

• Code: 187
• Display: Service Call 187: Error
• Description: Communication with control panel disabled.
• Causes: Is cable properly connected to control panel?
• Troubleshooting Guides: Connect properly. Replace control panel and cable.

• Code: 310
• Display: Close cover 310: Top cover open
• Description: Printer engine cover open.
• Causes: 1) Check if top cover is open. 2) Check if cover switch is proper.
• Troubleshooting Guides: Close top cover. Close side cover. Replace cover switch.

• Code: 320
• Display: Reset fuser 320: Fuser error
• Description: Same unit not detected upon power ON or opening cover.
• Causes: 1) Is error message displayed? 2) Is fuser unit set properly? 3) Does error reoccur?
• Troubleshooting Guides: Check if fuser is set properly. Reset fuser and turn ON power again. Replace fuser unit assembly.

• Code: 321
• Display: Turn power OFF and wait 321: MOTOR OVERHEAT
• Description: Printer cannot be used temporarily due to motor overheat.
• Causes:
• Troubleshooting Guides: Turn ON power after a while.

• Code: 323
• Display: Open/close cover 323: Paper thickness error
• Description: Sensor output out of range with no media. (Only for Factory Mode)
• Causes: 1) Are foreign objects mixed in sensor? 2) Does printer recover when detecting paper thickness by opening/closing tray? 3) Does printer recover by power OFF/ON.
• Troubleshooting Guides: Remove foreign objects. Normal.

• Code: 324
• Display: Open/close cover 324: Paper thickness error
• Description: Sensor output gap out of range with no media. (Only for Factory Mode)
• Causes: 1) Are foreign objects mixed in sensor? 2) Does printer recover when detecting paper thickness by opening/closing tray? 3) Does printer recover by power OFF/ON.
• Troubleshooting Guides: Remove foreign objects. Normal.

• Code: 325
• Display: Open/close cover 325: Paper thickness error
• Description: Media detect value out of range.
• Causes: 1) Is different media type mixed in? 2) Is media being double fed?
• Troubleshooting Guides: Remove foreign objects.

• Code: 326
• Display: Open/close cover 326: Paper thickness error
• Description: U-Heavy mode media detect value out of range.
• Causes: Is different media type mixed in?
• Troubleshooting Guides: Remove foreign objects.

• Code: 330
• Display: Reset belt 330: Belt error
• Description: Same unit not detected upon power ON or closing cover.
• Causes: 1) Is error message displayed? 2) Is belt unit set properly? 3) Does error reoccur?
• Troubleshooting Guides: Check set condition of belt unit. Reset belt unit and turn power ON again. Replace belt unit assembly.

• Code: 330 … 343
• Display: Reset drum 330~343: Drum error
• Description: Same as above.
• Causes: 1) Is error message displayed? 2) Is image drum set properly? 3) Does error reoccur?
• Troubleshooting Guides: Check set condition of ID. Turn power ON again. Replace ID unit assembly.

• Code: 350 … 353
• Display: Set new drum 350: Yellow drum life 351: Magenta drum life 352: Cyan drum life 353: Black drum life
• Description: ID unit life.
• Causes: Right after replacing ID unit?
• Troubleshooting Guides: Check ID unit life. Replace ID unit.

• Code: 354
• Display: Set new fuser 354: Fuser life
• Description: Fuser life (occurs when fuser life continuation is OFF).
• Causes: Right after replacing fuser?
• Troubleshooting Guides: Check fuser life. Replace fuser.

• Code: 355
• Display: Set new belt 355: Belt life
• Description: Belt life notified (alarm). Print N-count by opening and closing cover.
• Causes: Right after replacing belt?
• Troubleshooting Guides: Check belt life. Replace belt.

• Code: 356
• Display: Set new belt 356: Belt life
• Description: Waste toner belt life notified (alarm). Print N-count by opening and closing cover. N=20
• Causes: Right after replacing belt?
• Troubleshooting Guides: Check belt life. Replace belt.

• Code: 360
• Display: Set duplex unit 360: Duplex unit is open.
• Description: When duplex unit is removed from printer.
• Causes: Does error recover by resetting duplex unit?
• Troubleshooting Guides: Normal. Replace duplex unit or engine board.

• Code: 370
• Display: Check DUPLEX 370: Paper jam
• Description: Paper jam detected after paper rotated in duplex unit.
• Causes: Check paper jam in duplex unit.
• Troubleshooting Guides: Remove jammed paper. Check/replace duplex unit.

• Code: 371
• Display: Check DUPLEX 371: Paper jam
• Description: Paper jam during paper feed from duplex unit.
• Causes: Check paper jam in duplex unit.
• Troubleshooting Guides: Remove jammed paper. Check/replace duplex unit.

• Code: 372
• Display: Check DUPLEX 372: Paper jam
• Description:
• Causes: Check miss-feed in duplex unit.
• Troubleshooting Guides: Remove miss-fed paper and close cover. Check/replace duplex unit.

• Code: 380
• Display: Open front cover 380: Paper j
• Description: Paper jam during paper feed from cassette 1, 2, 3, 4 or 5.
• Causes: Check miss-feed in duplex unit.
• Troubleshooting Guides: Remove miss-fed paper and set cassette. Check/replace cassette 1, 2, 3, 4, or 5.

• Code: 381
• Display: Open top cover 381: Paper jam
• Description: Paper jam detected between black ID and fuser
• Causes: 1) Check paper jam between yellow ID and fuser. 2) Check fuser unit load.
• Troubleshooting Guides: Remove jammed paper. Replace fuser unit.

• Code: 382
• Display: Open top cover 382: Paper jam
• Description: Paper jam detected in fuser or during paper ejection from fuser.
• Causes: 1) Check paper jam in fuser and between yellow ID and fuser. 2) Check if paper ejection switch is proper.
• Troubleshooting Guides: Remove jammed paper. Replace paper ejection switch.

• Code: 383
• Display: Open top cover 383: Paper jam
• Description: Paper jam detected when paper started to enter duplex print unit.
• Causes: Check paper jam in duplex unit or at entrance.
• Troubleshooting Guides: Remove jammed paper. Check/replace duplex unit.

• Code: 389
• Display: Open top cover 389: Paper jam
• Description: Jam generated in paper path.
• Causes: Open front cover and check jammed paper.
• Troubleshooting Guides: Remove jammed paper.

• Code: 390
• Display: Check MP tray 390: Paper jam
• Description: Paper jam during paper feed from MT.
• Causes: Check for miss-fed paper around MT cassette.
• Troubleshooting Guides: Remove miss-fed paper and close cover. Check/replace MT.

• Code: 391 … 395
• Display: Check tray 391~395: Paper jam
• Description: Paper jam detected between cassette and black ID.
• Causes: 1) Check jammed paper between cassette and yellow ID. 2) Check if paper entry switch is normal.
• Troubleshooting Guides: Remove jammed paper. Replace entry switch.

• Code: 400
• Display: Open top cover 400: Paper size error
• Description: Non-set paper (45mm or above) detected by printer engine.
• Causes: 1) Is paper custom size? 2) Is paper standard size?
• Troubleshooting Guides: No treatment required. Adjust paper size guide in cassette. Replace paper size board (PXC PWB).

• Code: 410 … 413
• Display: Refill toner 410: Yellow 411: Magenta 412: Cyan 413: Blac
• Description: Certain toner is almost empty.
• Causes: 1) Selected toner cartridge is almost empty. 2) Check if selected toner cartridge is normal.
• Troubleshooting Guides: Replace with new toner kit. Replace selected toner sensor.

• Code: 480
• Display: Remove paper 480: Stacker full
• Description: Paper ejection stacker is full.
• Causes: 1) Check if stacker is full. 2) Check if stacker full sensor is operating properly.
• Troubleshooting Guides: Remove paper from stacker. Replace stacker full sensor.

• Code: 490
• Display: Set 490: No paper in MP tray (* stands for A4 B4, etc.)
• Description: No paper in selected cassette. cassette is not set, or paper ran out in cassette being used.
• Causes: 1) Check if paper is empty in MT. 2) Check if paper-end sensor is operating properly.
• Troubleshooting Guides: Set paper in MT. Replace paper-end sensor.

• Code: 491 … 495
• Display: Set 491~495: No paper in * tray (* stands for A4 B4, etc.)
• Description: Paper empty in cassette 1, 2, 3, 4, or 5.
• Causes: 1) Check if paper is empty in selected cassette. 2) Check if paper-end sensor is operating properly.
• Troubleshooting Guides: Set paper in selected cassette. Replace the corresponding paper-end sensor.

– 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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