Replace and Repair Epson WF-4830, 4820 Series Motherboard

Remove Epson WF-4830, 4820 Series Motherboard

  • STEP 1. Remove the Housing Right. (p111)
  • STEP 2. Remove the Housing Left. (p110)
  • STEP 3. Remove the Housing Upper, click here
  • STEP 4. Remove the ADF/SCN Unit, click here
  • STEP 5. Remove the CR Scale.
  • STEP 6. Remove the PF Scale.
  • STEP 7. Remove the two screws, and remove the Ground Plate PS.

Epson-WF-4830-4820-series-remove-motherboard-step-7.jpg

In some regions, the Ground Plate PS is secured with three screws. (only for EAI)

Epson-WF-4830-4820-series-remove-motherboard-check-step-7.jpg

  • STEP 8. Disconnect all cables/FFCs and grounding wires from the Main Board, and release them.
  • STEP 9. Remove the nine screws.
    •  WF-4830 series

Epson-WF-4830-4820-series-remove-motherboard-step-9-figure-1.jpg

    • WF-4820 series

Epson-WF-4830-4820-series-remove-motherboard-step-9-figure-2.jpg

When removing the Main Board Assy, be careful not to damage the FFCs/cables.

  • STEP 10. Remove the Main Board Assy in the direction of the arrow.

Epson-WF-4830-4820-series-remove-motherboard-step-10.jpg

  • STEP 11. Disconnect the Wi-Fi Board Cable from the following connectors on the Main Board.
    •  WF-4830 series: CN31
    •  WF-4820 series: CN301
  • STEP 12. Remove the screw, and remove the Wi-Fi Board Assy from the Main Board Assy

Epson-WF-4830-4820-series-remove-motherboard-step-12.jpg

— Epson WF-4830/4820 Series Ink System, click here

  • STEP 13. Remove the Main Board from the Main Board Assy as follows.
    •  – WF-4830 series
      • #1. Remove the seven screws, and remove the Shield Plate MB and the Main board from the Frame Left.

Epson-WF-4830-4820-series-remove-motherboard-step-13-figure-1.jpg

When securing the Shield Plate MS, follow the order given in figure above

    • – WF-4820 series
      • #1. Remove the six screws, and remove the Shield Plate MB

Epson-WF-4830-4820-series-remove-motherboard-step-13-figure-2.jpg

Secure the Shield Plate MB with screws in the order given in figure above

— Fix Epson WF 4830, 4820 series error code 000020, 000025, 000032,… click here

— Fix Epson WF-4830/4820 error code 100016, 100020, 100054, 100077… click here

      • #2. Disconnect the two Relay Sub Board FFCs from the following connectors on the Main Board to remove the Main Board from the Frame Left.
        •  Main Board: CN509, CN706
        •  Sub Board: CN101, CN102

Epson-WF-4830-4820-series-remove-motherboard-step-13-figure-3.jpg

      • #3. Remove the two screws, and remove the Sub Board.

Epson-WF-4830-4820-series-remove-motherboard-step-13-figure-4.jpg

About NGUYEN DANG NAM

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