Print head Printronix 257341-003 — 8 dots/mm (203 dpi) thermal print head

Replacement print head Printronix 257341-003 — 8 dots/mm (203 dpi) thermal print head designed to restore accurate dot formation in compatible Printronix thermal/line printers. This print head provides standard 203 dpi resolution suitable for printing legible text, barcodes and simple graphics on labels, tags and continuous media used in industrial and logistics environments.

Advantages

The Printronix 8 dots/mm (203 dpi) print head delivers consistent dot density across the print width and is engineered for straightforward replacement in supported printer models. It supports reliable thermal transfer and direct thermal printing processes, reducing banding and improving barcode scannability when installed and aligned correctly. The component is intended for repair and maintenance operations to restore factory-grade print quality.

Подходит для

• Восстановление печати в промышленных и логистических принтерах Printronix
• Печать адресных и товарных этикеток
• Создание читаемых штрихкодов и простой графики
• Эксплуатационный ремонт и плановое техническое обслуживание

Key specifications

• Printing resolution: 8 dots/mm (203 dpi)
• Printing method: thermal line print head suitable for direct thermal and thermal transfer systems
• Intended use: industrial and logistics label printing
• Compatibility: for use in Printronix printers that accept this print head design
• Output: optimized for text, linear barcodes and basic graphics on label media

How to use

Before installation, power off the printer and follow the manufacturer’s safety instructions. Remove the old print head according to the printer service guide, taking care to avoid damage to the print head contacts and flex cable. Install the replacement print head aligning it to the specified mounting points and connector orientation, then secure it and reconnect any cables. After reassembly, run the printer’s self-test and calibration routines to set proper print head gap and heat settings for the chosen media type to ensure optimal print quality and barcode readability.

Usage recommendations

Use compatible media and ribbons (for thermal transfer) and perform routine cleaning of platen rollers and print head surfaces to prolong component life. Replace the print head if persistent banding, missing dots or degraded barcode performance continue after calibration. Follow Printronix service intervals and store spare print heads in a static-free environment away from extreme temperatures and humidity.