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Small rectangular printhead sensor with exposed circuitry and connector pins

YINGHUA

YINGHUA Printhead Sensor B57U321-1 for Brother MFC-J2330DW

SKU CH-48MQ-Y60KT

Printhead sensor B57U321-1 replaces the original part in compatible Brother inkjet models including J2330, J2730, J3530, J3930, J5330, J6530, J6730, J6930, J6945, T4000 and T4500

  • Product categoryPrinthead
  • Direct replacement for Brother MFC-J2330DW printhead sensor
  • Ensures accurate printhead positioning across multiple Brother models
  • New condition guarantees reliable performance from installation
  • Compatible with J2330, T4000, J6530, J3530, J6730, J3930, J5330, J2730, J6945, J6930, T4500

Printhead Sensor B57U321-1 Compatibility

This replacement printhead sensor is manufactured by YINGHUA for Brother inkjet printers. It carries the part number B57U321-1 and matches the MFC-J2330DW model directly. The component also fits the J2330, J2730, J3530, J3930, J5330, J6530, J6730, J6930, J6945, T4000 and T4500 series. Buyers needing a sensor for other Brother families or for laser devices will not be served by this part.

Installation Requirements and Operation

The sensor is a new, standalone printhead component supplied without additional tools or mounting hardware. No power draw, thermal output or acoustic specifications are published for this item because it is a passive mechanical and optical assembly. Installers should verify the exact model number on the printer before ordering. Professional fitting is recommended if the service manual calls for printhead alignment or firmware recalibration after replacement.

How it compares

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

Price $146.99
Pricier than about 65% of the 5,855 comparable items (median $91.99).

Specifications

Product
Product categoryPrinthead

Questions about this item

How do I install the B57U321-1 printhead sensor on my Brother MFC-J2330DW, and which step is most often missed?

Power off the printer, open the carriage cover, release the printhead latch, swap the sensor, re-latch firmly, then run the head-alignment routine — skipping the alignment causes misregistration.

What maintenance or replacement will the B57U321-1 printhead sensor need later?

The sensor itself is not user-serviceable; plan to replace the entire printhead assembly when print quality degrades or the printer reports a permanent head error.

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