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Green rectangular circuit board with gold connectors and small electronic components

YINGHUA

YINGHUA Detection Board for Epson WF-4270 WF-4730 WF-4740 WF-4838

SKU CH-M6QX-QSJWF

Replacement detection board for Epson WorkForce WF-4270, WF-4730, WF-4740 and WF-4838 printers

  • Product categoryPrinthead
  • Direct fit for WF-4270, WF-4730, WF-4740 and WF-4838 printers
  • Genuine printhead detection board restores printhead recognition
  • New condition ensures reliable electrical contact
  • Replaces faulty board to clear detection errors

Printhead Detection Board for Epson WorkForce

This detection board is a genuine replacement printhead component designed for Epson WorkForce WF-4270, WF-4730, WF-4740 and WF-4838 models. It restores the printer's ability to monitor printhead status and ink levels accurately. Installation returns the device to full operational capability.

Replaces a Faulty or Damaged Original Board

The part upgrades a failing detection circuit that causes printhead recognition errors or incorrect ink warnings. The jump is worth it when the printer shows persistent detection faults that cleaning cannot fix. It is not for users needing a complete printhead assembly or those servicing printer models outside the listed series.

How it compares

Measured against everything we stock in Print & Scan Accessories, at today’s prices. Recalculated every night.

Price $129.99
Pricier than about 61% of the 5,855 comparable items (median $91.99).

Specifications

Product
Product categoryPrinthead

Questions about this item

Does this detection board fit the Epson WF-4740 printhead carriage?

Yes, the board is listed as compatible with the WF-4740, WF-4730, WF-4270 and WF-4838 models.

What is the correct orientation when inserting the board into the printhead slot?

Align the connector pins with the carriage socket and press straight in until the board seats fully; forcing it at an angle bends the pins.

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