Thermal print head for Brother label printers PA-HU3-001 — compatible with TD-4520DN, TD-4550DNWB, 1 pc, black

Replacement thermal print head PA-HU3-001 for Brother label printers, compatible with Brother TD-4520DN and TD-4550DNWB models. This single-unit, black thermal print head is designed for direct thermal printing at 300 dpi to restore print quality and maintain consistent performance and legibility of labels. The component is intended for repair and maintenance of compatible Brother label printers to ensure reliable operation after wear or damage to the original print head.

Advantages

The PA-HU3-001 print head provides a 300 dpi resolution that supports clear, high-definition text and barcodes on direct thermal media. Designed as a factory-compatible replacement for specific Brother TD series models, it enables straightforward onsite maintenance and reduces downtime by restoring the printers original print quality. Supplied as a single unit, the part is ready for installation and eliminates the need for printer replacement when the existing print head reaches end of life.

Suitable for

• Repairing or refurbishing Brother TD-4520DN label printers
• Repairing or refurbishing Brother TD-4550DNWB label printers
• Replacing worn or damaged thermal print heads used for direct thermal label printing
• Maintaining barcode, shipping, and product labeling operations that require consistent print quality

Key specifications

• Printing method: direct thermal
• Resolution: 300 dpi
• Compatibility: Brother TD-4520DN, TD-4550DNWB
• Quantity: 1 unit per pack
• Color: black (print head housing/assembly as supplied)

How to use

Power off the printer and follow the manufacturers service instructions for safe removal of the old print head. Handle the replacement print head by non-contact areas to avoid contaminating the thermal surface. Install the PA-HU3-001 into the designated print head slot, secure connectors and fasteners according to the service guide, and perform any required alignment or calibration procedures recommended by Brother. After installation, run a test print to confirm print quality and correct alignment before returning the printer to normal operation.

Recommendations

Use direct thermal label media compatible with 300 dpi printing, keep the thermal surface free of dust and oils, and perform regular cleaning and periodic inspections to prolong print head life and maintain consistent label quality.