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Honeywell PX940 / PX940V 4" 600 DPI Ultra-High Resolution Thermal Printhead (P/N 50144346-001)
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Factory-original 600 DPI ultra-high-definition thermal printhead assembly for Honeywell PX940 and PX940V industrial verifier printers. Built for microscopic circuit board tags, medical device markers, and automated 100% barcode verification at speeds up to 6 ips. Unsurpassed optical precision.
GENUINE OEM REPLACEMENT • PRECISION THERMAL HARDWARE
Honeywell PX940 / PX940V 4" 600 DPI Ultra-High Resolution Thermal Printhead (P/N 50144346-001) – Genuine OEM Replacement
OEM Part Number: 50144346-001
Resolution / Print Width: 600 DPI (23.6 dots/mm) / 105.6 mm (4.16")
Technology Core: Ultra-Fine Ceramic Thin-Film Micro-Resistor Array
Target Platform: Honeywell PX940 & PX940V Integrated Verification Industrial Printers
ARCHITECTURAL OVERVIEW
Ultra-High-Resolution Thermal Micro-Deposition & In-Line Verifier Precision
The Honeywell PX940 / PX940V 600 DPI Ultra-High Resolution Thermal Printhead (OEM P/N: 50144346-001) is an authentic original equipment manufacturer replacement transducer engineered specifically for the mission-critical printing and automated in-line barcode verification architecture of the Honeywell PX940 series. Purpose-built for high-regulation industrial environments such as pharmaceutical serialization (FDA 21 CFR Part 11 and DSCSA compliance), medical device micro-UDI labeling, aerospace micro-part identification, and high-density semiconductor/PCB tracking, this printhead guarantees defect-free barcode generation and 100% ANSI/ISO Grade-A verification compliance on integrated verifier models (PX940V).
Built on an ultra-precision ceramic thin-film substrate, the linear heating line integrates 2,496 individual micro-resistors calibrated at 23.6 dots per millimeter (600 dots per inch) across a 105.6 mm (4.16 inch) active print swath. The micro-resistor line is fortified with an advanced Diamond-Like Carbon (DLC) glaze overcoat that provides exceptional wear resistance against abrasive chemical top-coatings on micro-synthetic labels, polyimide/Kapton high-temp tags, and high-drag thermal transfer resin ribbons. This ultra-hard passivation layer prevents resistor thinning, static pinhole erosion, and molten polymer burn-on during high-precision micro-printing at controlled linear speeds up to 150 mm/s (6 ips).
The thermal transducer is bonded to a solid, precision-milled aluminum structural heat sink carrier designed for rapid and uniform thermal evacuation away from the dense 600 DPI dot line. This thermal stabilization eliminates thermal latency, dot blooming, and edge distortion on microscopic 2D symbologies (including high-density Data Matrix, Aztec, MicroQR, and GS1 Composite codes). Complete with onboard high-accuracy negative temperature coefficient (NTC) thermistors for dynamic strobe pulse compensation and gold-plated logic/driver connector headers, each genuine 50144346-001 assembly is cleanroom manufactured, factory resistance-graded, vacuum-sealed inside an anti-static ESD shielding pouch, and marked with authentic Honeywell serial tracking identifiers.
CRITICAL SYSTEM & RESOLUTION CROSS-CHECK: Verify the exact alphanumeric part number stamped on your existing printhead bracket before servicing. Part number 50144346-001 is designated strictly for the 600 DPI ultra-high-resolution configuration of the PX940 and PX940V. It is not directly interchangeable with the standard 203 DPI (P/N 50144344-001) or 300 DPI (P/N 50144345-001) printheads without corresponding firmware resolution updates, driver reconfiguration, and recalibration of the integrated optical verifier module.
ENGINEERING REFERENCE
Identification Notes & Core Distinction
| Reference Standard | Technical Description & Interoperability Context |
|---|---|
| Current OEM Part Number | 50144346-001 – Official Honeywell factory replacement catalog number for the 4-inch 600 DPI ultra-high-resolution industrial printhead assembly. |
| Standard Resolution Variants | 50144344-001 (203 DPI) / 50144345-001 (300 DPI) – Lower resolution counterparts utilizing 832 and 1,248 heating elements respectively; non-interchangeable without full software, driver, and verifier optics recalibration. |
| Target Sub-Assembly Architecture | Honeywell PX940 Enterprise Industrial Chassis – Heavy-duty dual-spring precision pivot carriage engineered to integrate with both standard PX940 and verifier-equipped PX940V models. |
NOTICE: Do not attempt to mount this printhead into Honeywell PM45 / PM45c industrial units (P/N 50180237-001), PM43 / PM42 platforms (P/N 710-179S-001 / 710-180S-001), PD45 / PD45S series (P/N 50178578-001), or legacy PX4ie / PX6ie print engines. Despite similar 4-inch widths, mounting bracket geometry, pin registers, and verifier alignment clearances are entirely incompatible.
SYSTEM PARAMETERS
Product Details & Engineering Specifications
Part A: Part Information Matrix
| Product Name | Honeywell PX940 / PX940V 4" 600 DPI Ultra-High Resolution Thermal Printhead Assembly |
| OEM Manufacturer | Honeywell Safety and Productivity Solutions (Charlotte, NC, USA) |
| Exact Model Code | PX940 / PX940V Printhead Kit 600 DPI (23.6 dots/mm) |
| OEM Part Number | 50144346-001 |
| Known Cross-Reference / Aliases | HON-50144346-001, PX940-600DPI-KIT, PX940V Replacement Head 600 |
| Media & Ribbon Chemistry | Direct Thermal Ultra-Smooth Stock / Synthetic Films (Polyimide, Polyester, Vinyl); Thermal Transfer High-Density Resin & Premium Wax/Resin Ribbons |
| Product Status & Condition | 100% Brand New, Genuine OEM Factory Original, Sealed in Anti-Static Enclosure |
| Country of Origin | Japan (Engine Fab) / China / USA (OEM Sub-assembly) |
| Primary Industrial Application | Automated In-Line 100% Barcode Verification, Medical Device Micro-UDI Labeling, Pharmaceutical Serialization, Electronic PCB & IC Component Micro-Tracking |
Part B: Technical Specifications
| Print Technology | Direct Thermal (DT) & Thermal Transfer (TT) Dual Mode Ceramic Thin-Film |
| Optical Print Resolution | 600 DPI (23.62 dots/mm) |
| Effective Print Swath Width | 105.6 mm / 4.16 inches (Accepts media widths from 20 mm to 114 mm) |
| Total Heating Dot Array | 2,496 Resistive Heating Elements |
| Dot Pitch / Geometry | 0.0423 mm (center-to-center dot spacing) |
| Nominal Resistance Rating | Approx. 700 Ω – 850 Ω (Automatic baseline resistance detection by PX940 mainboard) |
| Maximum Linear Printing Speed | Up to 150 mm/s (6.0 inches per second) |
| Surface Protective Glaze | Diamond-Like Carbon (DLC) Abrasion-Resistant Overcoat |
| Thermal Sensor Integration | Dual integrated High-Precision NTC Thermistors with real-time temperature tracking |
| Electrical Interface | Dual multi-pin gold-plated headers for segmented strobe lines, high-speed clock, and 24V supply rails |
| Thermal Heat Sink Carrier | Solid machined aluminum mounting carrier with verifier-aligned precision locating pins |
FIELD ADVISORY
Technical Precision & Installation Warning
CAUTION: Installation and mechanical calibration of this 600 DPI ultra-high-resolution printhead must be executed exclusively by qualified industrial technicians adhering strictly to OEM safety and optical alignment protocols.
- Electrostatic Discharge (ESD) Protection: Wear a grounded anti-static wrist strap throughout servicing. The 2,496 ultra-dense micro-heating elements and high-frequency CMOS driver ICs are acutely susceptible to instant static perforation.
- Complete Power Isolation (No Hot-Swapping): Shut down the main power switch and disconnect AC mains power from the rear of the PX940 printer before unlatching the print carriage. Never connect or disconnect printhead cables while power is supplied. Hot-plugging induces severe inductive voltage spikes that immediately burn out the logic driver circuitry and mainboard FETs.
- Cable & Harness Inspection: Inspect the printhead cable connectors for bent pins, debris, or conductor fatigue. Align both connectors squarely and seat them fully into the dual headers without forced canting.
- Platen Roller Cleaning & Pressure Balance: Clean the platen roller thoroughly with 99% pure electronic-grade isopropyl alcohol (IPA) before seating the new printhead. Balance printhead mechanical pressure using the carriage adjustment dials; uneven pressure induces ribbon wrinkling, premature edge wear, and localized overheating of the 600 DPI dot line.
- Handling Factory-Sealed Unit: Never touch the glazed thermal print line with bare hands; skin oils carbonize under operational heat and create localized thermal hot-spots. Clean solely with lint-free swabs saturated in pure IPA prior to first power-up.
- Verifier Recalibration (PX940V Models): Following physical installation and media calibration, initiate the integrated verifier optical calibration sequence via the PX940V touchscreen menu. Accurate verifier focal distance and ANSI/ISO grading require exact mechanical alignment of the 600 DPI print swath.
SYSTEM INTEROPERABILITY
Compatible Engine Platforms & Procurement Terms
Honeywell PX940 Standard Industrial (600 DPI)
- Honeywell PX940 High-Precision Industrial Printer (600 DPI)
- Honeywell PX940 with Internal Rewinder / Peeler Configuration
- Honeywell PX940 with Heavy-Duty Rotary Cutter Module
- Honeywell PX940 Ethernet / Wireless Enterprise Configurations
Honeywell PX940V with Integrated Verifier (600 DPI)
- Honeywell PX940V In-Line Verification Industrial Printer (600 DPI)
- Honeywell PX940V 100% ANSI/ISO Barcode Quality Inspection Models
- Honeywell PX940V Automated Defect Voiding & Reprint Units
- Honeywell PX940V Direct Thermal / Thermal Transfer Verification Engines
Confirmed Incompatible Hardware Platforms (Strict Verification Notice)
DO NOT DEPLOY IN: Honeywell PX940 203 DPI models (P/N 50144344-001) or 300 DPI models (P/N 50144345-001) without verified resolution conversion and verifier recalibration, Honeywell PM45 / PM45c series (P/N 50180237-001 / 50180236-001), legacy PM43 / PM42 platforms (P/N 710-180S-001 / 710-179S-001), PD45 / PD45S printers, desktop PC45 platforms, or third-party 600 DPI industrial printers from Zebra (ZT610 600 DPI), CAB (A4.4+ / SQUIX 600 DPI), or Sato. Mechanical carriage mounting tabs, verifier alignment fixtures, and cable pinouts are non-interchangeable.
Terms, Warranty & Customer Protection Policy
1. Pre-Installation Authenticity Guarantee: This item is guaranteed to be 100% genuine OEM, brand new, and factory-sealed from Honeywell Safety and Productivity Solutions. Each unit carries its authentic factory serial number and OEM batch traceability barcode.
2. Limited Operational Warranty (30 Working Days): Due to the operating nature of thermal resistive components, warranty coverage against manufacturing defects is valid for 30 working days from the verified date of delivery. Any warranty claim requires continuous, unedited high-definition video documentation covering package unboxing of the intact seal, pre-installation multi-meter resistance verification, and replacement executed by a qualified industrial maintenance technician.
3. Final Sale & Return Exclusions: Under standard industrial spare parts policy, once the sealed anti-static protective pouch has been opened, mounted into a machine carriage, or subjected to electrical power, this printhead is classified as an active consumable item and is non-returnable and non-refundable. Physical abrasions, scratches on the glazed print array, or element burn-out caused by debris or electrical spikes void all coverage.
50144346-001
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