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Small green circuit board with electronic components and connectors

YINGHUA

YINGHUA Detection Board for Forepson WF-4740 EC-4030 WF-4838 WF-4734 WF-4725 WF-4270

SKU CH-GG2Q-9C90F

Detection board for Forepson WF-4740, EC-4030, WF-4838, WF-4734, WF-4725 and WF-4270 printers

  • Product categoryPrinthead
  • Ensures accurate printhead positioning for WF-4740
  • Compatible with EC-4030 and WF-4838 models
  • Supports WF-4734 and WF-4725 printers
  • Works with WF-4270 for reliable detection

Detection Board for Forepson Printers

This detection board is a printhead component designed for Forepson inkjet models WF-4740, EC-4030, WF-4838, WF-4734, WF-4725 and WF-4270. It monitors printhead status and sends signals to the printer controller. The part is new and supplied as a direct replacement for a failed or worn original board.

Replaces Faulty Printhead Detection Board

Install this board when the printer reports printhead errors, missing nozzle detection or communication faults that cleaning cannot fix. It restores the feedback loop between the head and mainboard. The jump is worth it when the existing board is confirmed defective and a full printhead assembly is not required. Not for printers outside the listed model series or for faults unrelated to head detection.

How it compares

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

Price $138.99
Pricier than about 63% of the 5,855 comparable items (median $91.99).

Specifications

Product
Product categoryPrinthead

Questions about this item

Which printer models does this detection board fit?

This detection board fits Forepson WF-4740, EC-4030, WF-4838, WF-4734, WF-4725 and WF-4270 printers.

How is the detection board installed in the printer?

The board connects to the printhead carriage assembly; ensure the flexible cable is fully seated in the connector before securing the board.

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