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Genuine Honeywell PD45 / PD45S 4" 300 DPI Industrial Thermal Printhead (P/N 50178578-001)
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Factory-original 300 DPI high-definition thermal printhead replacement kit for Honeywell PD45 industrial barcode printers. Engineered for sharp micro-fonts, dense 2D Data Matrix codes, and high-density compliance labels at speeds up to 6 ips.
GENUINE OEM REPLACEMENT • PRECISION THERMAL HARDWARE
Honeywell PD45 / PD45S 4" 300 DPI Industrial Thermal Printhead (P/N 50178578-001) – Genuine OEM Replacement
OEM Part Number: 50178578-001
Print Resolution / Width: 300 DPI (11.8 dots/mm) / 106 mm (4.17")
Technology Core: High-Density Ceramic Thin-Film Micro-Resistor Array
Target Platform: Honeywell PD45 & PD45S Commercial Industrial Printers
ARCHITECTURAL OVERVIEW
High-Density Industrial Thermal Imaging & Micro-Symbology Precision
The Honeywell PD45 / PD45S 300 DPI Industrial Printhead (OEM P/N: 50178578-001) is an authentic original equipment manufacturer replacement transducer engineered specifically for high-resolution configurations of Honeywell PD45 and PD45S industrial printing platforms. Designed to excel in demanding manufacturing, electronics component assembly, pharmaceutical tracking (serialization/compliance), and advanced warehousing environments, this printhead delivers razor-sharp typographic legibility, micro-text clarity, and ANSI/ISO Grade-A scanning verification on high-density 2D barcodes (Data Matrix, QR Code, PDF417) and ultra-fine linear symbologies.
Engineered on a precision ceramic thin-film micro-resistor substrate, the linear array incorporates 1,248 individual micro-heating elements spaced at 11.8 dots per millimeter (300 dots per inch) across a nominal 106 mm active print swath. The entire resistor line is shielded with a high-durability Diamond-Like Carbon (DLC) glaze overcoat, offering exceptional resistance against mechanical friction from synthetic film media, coated thermal paper, and high-drag thermal transfer ribbons (wax, wax-resin, and resin formulations). This micro-passivation layer prevents static pinhole erosion, chemical etching, and premature resistor wear at industrial print speeds up to 150 mm/s (6 ips on PD45) and 200 mm/s (8 ips on PD45S).
Mounted to a rigid, precision-formed aluminum heatsink carriage frame, the assembly guarantees optimal thermal conduction away from the dot line during continuous high-density printing to eliminate heat blooming and edge bleed. Equipped with an integrated negative temperature coefficient (NTC) thermistor for continuous dynamic strobe pulse-width compensation and gold-plated logic/driver connector headers, every genuine 50178578-001 assembly is cleanroom manufactured, resistance-ranked, vacuum-sealed in an anti-static ESD shielding pouch, and marked with authentic Honeywell serial tracking identifiers.
CRITICAL RESOLUTION & HARDWARE VERIFICATION: Verify the part number stamped on your existing printhead carriage before ordering. Part number 50178578-001 designates the 300 DPI variant of the PD45/PD45S platform. If converting from a 203 DPI unit (P/N 50178577-001), the printer's resolution parameters, driver configurations, and media calibration settings must be updated in firmware to avoid truncated label scaling and timing mismatch faults.
ENGINEERING REFERENCE
Identification Notes & Core Distinction
| Reference Standard | Technical Description & Interoperability Context |
|---|---|
| Current OEM Part Number | 50178578-001 – Primary Honeywell spare parts catalog reference for the 4-inch 300 DPI high-resolution industrial printhead assembly. |
| Standard Resolution Counterpart | 50178577-001 (203 DPI / 8 dots/mm) – Standard resolution version utilizing 832 heating elements; non-interchangeable without full software/firmware reconfiguration. |
| Target Sub-Assembly Architecture | Honeywell PD45 Chassis Platform – Precision dual-spring pivot carriage matching both PD45 (Standard) and PD45S (High-Speed Advanced) industrial models. |
NOTICE: Do not attempt to mount this printhead into Honeywell PM43 / PM45 industrial units (P/N 710-179S-001 / 50180237-001), PX4ie / PX45 print engines, or desktop PC45 models (P/N 50190534-001). While print resolution and print width match, physical mounting bracket geometries, pivot latches, and connector interfaces are entirely non-interchangeable.
SYSTEM PARAMETERS
Product Details & Engineering Specifications
Part A: Part Information Matrix
| Product Name | Honeywell PD45 / PD45S 4" 300 DPI Industrial Thermal Printhead Assembly |
| OEM Manufacturer | Honeywell Safety and Productivity Solutions (Charlotte, NC, USA) |
| Exact Model Code | PD45 / PD45S Printhead Kit 300 DPI (11.8 dots/mm) |
| OEM Part Number | 50178578-001 |
| Known Cross-Reference / Aliases | HON-50178578-001, PD45-300DPI-KIT, PD45S Replacement Head 300 |
| Media & Ribbon Chemistry | Direct Thermal Paper / Synthetic Label Stock; Thermal Transfer Ribbons (Premium Wax, High-Density Wax/Resin, Chemical-Resistant Resin) |
| Product Status & Condition | 100% Brand New, Genuine OEM Original, Factory Sealed in Anti-Static Enclosure |
| Country of Origin | China / Japan (OEM Sub-assembly Core) |
| Primary Industrial Application | Electronics & PCB Component Labeling, Pharmaceutical Serialization, High-Density 2D Matrix Compliance, Work-in-Progress (WIP) Tracking |
Part B: Technical Specifications
| Print Technology | Direct Thermal (DT) & Thermal Transfer (TT) Dual Mode Ceramic Thin-Film |
| Optical Print Resolution | 300 DPI (11.81 dots/mm) |
| Effective Print Swath Width | 106.0 mm / 4.17 inches (Accepts media widths from 20 mm to 114 mm) |
| Total Heating Dot Array | 1,248 Resistive Heating Elements |
| Dot Pitch / Geometry | 0.0847 mm (center-to-center dot spacing) |
| Nominal Resistance Rating | Approx. 650 Ω – 800 Ω (Automatic baseline detection by PD45 mainboard) |
| Maximum Linear Printing Speed | Up to 150 mm/s (6 ips on PD45) / Up to 200 mm/s (8 ips on PD45S) |
| Surface Protective Glaze | Diamond-Like Carbon (DLC) Abrasion-Resistant Overcoat |
| Thermal Sensor Integration | Integrated High-Precision NTC Thermistor with real-time temperature tracking |
| Electrical Interface | Multi-pin gold-plated header for clock, strobe logic, and 24V supply lines |
| Thermal Heat Sink Carrier | Solid machined aluminum mounting carrier with integrated pivot points |
FIELD ADVISORY
Technical Precision & Installation Warning
CAUTION: Installation and mechanical calibration of this high-resolution industrial printhead must be executed exclusively by qualified service engineers adhering strictly to OEM safety protocols.
- Electrostatic Discharge (ESD) Protection: Wear a grounded anti-static wrist strap throughout servicing. The 1,248 microscopic heating elements and onboard CMOS driver ICs are acutely susceptible to static perforation.
- Complete Power Isolation (No Hot-Swapping): Shut down the main power switch and disconnect AC mains power from the rear of the PD45 printer before unlatching the 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 connector for bent pins, debris, or conductor fatigue. Align the connector squarely and seat it fully into the header 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 screws; uneven pressure induces ribbon wrinkling, premature edge wear, and localized overheating of the 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.
- Firmware & Calibration Check: After installation, power on the printer and perform a media calibration sequence via Honeywell PrintSet 5 or the front-panel menu. Confirm that darkness, print speed, and heat settings conform to the specified media grade to prevent premature thermal stress.
SYSTEM INTEROPERABILITY
Compatible Engine Platforms & Procurement Terms
Honeywell PD45 Commercial Industrial (300 DPI)
- Honeywell PD45 High-Resolution Industrial Printer (300 DPI)
- Honeywell PD45 with Dispenser / Peeler Configuration
- Honeywell PD45 with Heavy-Duty Rotary Cutter
- Honeywell PD45 Ethernet / Wireless Enterprise Configurations
Honeywell PD45S High-Performance Industrial (300 DPI)
- Honeywell PD45S High-Performance Industrial Printer (300 DPI)
- Honeywell PD45S Full Touchscreen Configuration
- Honeywell PD45S In-line Production Line Applicators
- Honeywell PD45S High-Speed Direct Thermal / Thermal Transfer Units
Confirmed Incompatible Hardware Platforms (Strict Verification Notice)
DO NOT DEPLOY IN: Honeywell PD45 / PD45S 203 DPI models (P/N 50178577-001) without full resolution conversion, Honeywell PM43 / PM43c / PM45 industrial units (P/N 710-179S-001 / 50180237-001), legacy PD41 / PD42 / PD43 printers, desktop PC45 / PC43 platforms, or third-party industrial printers from Zebra (ZT231 / ZT411 300 DPI), TSC, or Datamax. Mounting brackets, pivot pins, and connector pinout configurations 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.
50178578-001
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