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Toshiba TEC B-EP4DL Mobile Thermal Printhead 203 DPI FMBC0084101
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Authentic OEM 203 DPI thermal printhead module for Toshiba TEC B-EP4DL rugged 4-inch mobile label printers. Produces sharp 4-inch wide direct thermal receipts and warehouse dispatch tags. Direct factory replacement.
OEM Replacement Component
Toshiba TEC B-EP4DL Series 4-Inch Mobile Thermal Printhead (203 DPI)
OEM Part Number: FMBC0084101 | Genuine Portable Direct Thermal Line Head Assembly
Product Overview
The Toshiba TEC FMBC0084101 is an authentic original equipment manufacturer (OEM) replacement thermal printhead engineered specifically for the Toshiba TEC B-EP4DL portable mobile printer family. Built for heavy-duty field operations, delivery logistics, warehouse cross-docking, and on-demand field labeling, this line head delivers standard-definition 203 DPI (8.0 dots/mm) resolution across an active 4.09-inch (104.0 mm) print width.
Featuring an energy-efficient thin-film ceramic resistive array, the FMBC0084101 optimizes power draw from the mobile printer’s lithium-ion battery pack without compromising optical density or edge clarity. The assembly is factory-mounted on a lightweight aluminum heatsink carrier with integral mounting guide notches, ensuring precise contact pressure across the platen roller and eliminating mechanical tracking errors during high-speed portable direct thermal printing.
Part Information
| Product Name | Toshiba TEC B-EP4DL Mobile Thermal Printhead |
| OEM Manufacturer | Toshiba TEC Corporation |
| OEM Part Number | FMBC0084101 |
| Component Classification | Original Equipment Manufacturer (OEM) Replacement Thermal Printhead |
| Chassis & Substrate | Glazed Ceramic Element Matrix on Rigid Lightweight Aluminum Mounting Base |
| Manufacturing Standard | Toshiba TEC Factory Certified (Japan) |
Technical Specifications
| Printing Technology | Direct Thermal (DT) Only |
| Native Resolution | 203 DPI (8.0 dots/mm) |
| Dot Pitch | 0.125 mm (nominal dot-to-dot spacing) |
| Effective Print Width | 104.0 mm (4.09 inches) / 4-inch format |
| Total Heating Elements | 832 Dots (continuous linear array) |
| Rated Print Speed | Up to 4.1 ips (105.0 mm/sec) — battery charge and media profile dependent |
| Media Compatibility | Direct thermal receipt papers, continuous labels, die-cut synthetic labels, and linerless media |
| Electrical Interface | High-density Flexible Printed Circuit (FPC) tail with zero-insertion-force (ZIF) termination |
| Thermal Management | High-sensitivity integrated thermistor providing closed-loop strobe pulse control to conserve battery |
Key Features & Operational Advantages
- Battery-Optimized Thermal Driver: Engineered with low-threshold thin-film heating elements that ensure deep optical black levels while minimizing draw on the portable 14.8V lithium-ion pack.
- Linerless & Synthetic Facestock Durability: Coated with an advanced anti-abrasive dielectric glaze that resists physical wear, chemical coating leaching, and adhesive contamination common to linerless media.
- Precision Mobile Clamshell Seating: Factory-molded alignment pins and spring retention points seat cleanly into the B-EP4DL clamshell frame, preventing uneven side-to-side mechanical pressure.
- Calibrated Factory Resistance: Pre-matched internal resistance rating synchronizes directly with the B-EP4DL firmware drive tables, eliminating uneven barcode line thickness and thermal burn-out.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Mandatory ESD Safeguards: Embedded thin-film dot arrays and internal logic multiplexers are Class 1 ESD-sensitive components. Maintenance personnel must wear a grounded ESD wrist strap and work on a static-dissipative work surface. Never touch the ceramic dot array or exposed gold connector traces directly.
2. Complete Power Isolation: Always power off the mobile printer and physically remove the rechargeable battery pack before beginning replacement. Disconnecting or seating the flexible circuit harness while the logic board is energized will blow the mainboard driver circuitry and permanently destroy the printhead.
3. FPC Terminal Handling: Polyimide flexible flat circuits are prone to fatigue fractures. Do not bend, fold, or twist the FPC tail sharply during installation. Ensure the ZIF socket latch on the printer board is completely disengaged before inserting the tail squarely into place.
4. Preventive Cleaning Regimen: Direct thermal papers leave abrasive paper dust and thermal coating residues. Clean the dot line regularly using a lint-free swab saturated with 99.7% electronic-grade Isopropyl Alcohol (IPA). Allow the solvent to fully dry before locking the clamshell cover and turning on the device. Never scrape the ceramic face with metallic objects or abrasive cleaning pads.
Compatible Models & Systems
| System Family | Native Resolution | Supported Models |
|---|---|---|
| Toshiba TEC B-EP4DL Series | 203 DPI (8.0 dots/mm) | B-EP4DL-GH20-QM-R / B-EP4DL-GH30-QM-R |
| Toshiba TEC B-EP4 Series | 203 DPI (8.0 dots/mm) | B-EP4DL Portable 4-inch Line (Direct Thermal) |
*Model Differentiation Note: This printhead is dedicated to the 4-inch B-EP4DL series. It is NOT physically or electrically compatible with the narrower 2-inch mobile series (B-EP2DL, which uses part FMBC0084001). Check the serial configuration label on the base of the printer to verify model size before opening the packaging.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Unopened Factory Original Genuine OEM Component in Factory-Sealed Anti-Static Packaging.
Warranty Scope: Covered by standard manufacturer DOA replacement protection against electrical and physical manufacturing defects upon initial arrival. Operating lifespan depends entirely on the abrasive nature of the media, outdoor environmental exposure, print darkness levels, and routine cleaning frequency.
Return Policy: Precision industrial electronic consumable. Due to sensitivity to electrostatic discharge and inherent wear during operation, components that have been unsealed from their protective static-shielding bag, installed, or energized in a host printer are strictly non-returnable. Please confirm your printer model and OEM part number with technical support prior to unsealing.
FMBC0084101
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