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Toshiba TEC B-EV4T Thermal Printhead 300 DPI FMBC0078102
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Factory OEM 300 DPI high-resolution flat-head thermal printhead for Toshiba TEC B-EV4T-TS desktop barcode printers. Produces sharp 2D barcodes, clinical graphics, and small text. Direct OEM replacement component.
OEM Replacement Component
Toshiba TEC B-EV4T Series 4-Inch Thermal Printhead (300 DPI)
OEM Part Number: FMBC0078102 | High-Resolution Thermal Transfer & Direct Thermal Desktop Line Head Assembly
Product Overview
The Toshiba TEC FMBC0078102 is an authentic original equipment manufacturer (OEM) replacement thermal printhead engineered specifically for the Toshiba TEC B-EV4T thermal transfer desktop printer series (TS14 / 300 DPI models). Built for high-definition dual-mode thermal transfer and direct thermal printing, this unit delivers exceptional 300 DPI (11.8 dots/mm) resolution across an active 4.19-inch (106.4 mm) printline span.
Featuring 1,256 micro-heating elements at a fine 0.085 mm dot pitch, the FMBC0078102 is engineered to reproduce razor-sharp micro-fonts, dense 2D Data Matrix symbols, intricate QR codes, and compliance graphics on synthetic label stocks. The assembly is built onto a rigid aluminum heatsink base with integrated locating brackets tailored to the ribbon carriage mechanism of the B-EV4T, ensuring smooth ribbon glide, uniform thermal distribution, and distortion-free edge-to-edge optical density.
Part Information
| Product Name | Toshiba TEC B-EV4T Thermal Printhead |
| OEM Manufacturer | Toshiba TEC Corporation |
| OEM Part Number | FMBC0078102 |
| Component Classification | Original Equipment Manufacturer (OEM) Replacement Thermal Printhead |
| Chassis & Substrate | Thin-Film Glazed Ceramic Matrix on Thermal-Transfer Carriage Aluminum Heatsink |
| Manufacturing Standard | Toshiba TEC Factory Certified (Japan) |
Technical Specifications
| Printing Technology | Thermal Transfer (TT) & Direct Thermal (DT) |
| Native Resolution | 300 DPI (11.8 dots/mm) |
| Dot Pitch | 0.085 mm (nominal dot-to-dot spacing) |
| Effective Print Width | Up to 106.4 mm (4.19 inches) |
| Total Heating Elements | 1,256 Dots (continuous linear array) |
| Rated Print Speed | Up to 4.0 ips (101.6 mm/sec) — media and ribbon grade dependent |
| Media & Ribbon Types | Wax, Wax/Resin, and Resin ribbons; vellum, coated papers, synthetic films (PET, PP), and direct thermal paper labels |
| Electrical Interface | High-speed multi-pin Flexible Flat Cable (FFC) connector terminal |
| Thermal Management | Integrated internal thermistor for closed-loop strobe pulse width regulation |
Key Features & Operational Advantages
- True 300 DPI Micro-Precision: 1,256 discrete heating elements enable sharp rendering of high-density 2D Data Matrix codes, pharmaceutical barcodes, and ultra-small regulatory text without dot spread.
- Thermal Transfer Ribbon Path Optimization: Engineered with specific chassis geometry and take-off angles dedicated to the B-EV4T ribbon carriage, preventing ribbon creasing, tracking drift, and back-coating burn.
- Hardened Dielectric Glaze: Advanced protective topcoat shields the microscopic resistive line from friction wear caused by abrasive thermal transfer ribbons and chemically coated media stocks.
- Calibrated Factory Resistance: Pre-ranked internal resistance values ensure drop-in electrical compatibility with the B-EV4T mainboard driver circuits, preventing uneven burn lines and maintaining consistent optical density.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Mandatory ESD Safeguards: Embedded 300 DPI thin-film heating elements and onboard driver shift registers 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 signal connector terminals directly.
2. Complete Power Isolation: Always power off the printer and disconnect the external AC/DC power supply brick before replacing the printhead. Disconnecting or seating the flexible flat cable (FFC) while the mainboard circuit is energized will cause instantaneous gate blowout in the driver ICs and permanently destroy the head.
3. FFC Harness Handling: Ensure the flexible flat cable is seated squarely into the connector terminal without misaligned pins or angled insertion. Skewed cable seating can short power rails directly into logic lines, causing irreversible mainboard failure.
4. Preventive Cleaning Regimen: Clean the dot line regularly (at every ribbon change or after direct thermal roll changes) using a lint-free swab saturated with 99.7% electronic-grade Isopropyl Alcohol (IPA). Allow the solvent to dry completely before closing the carriage and restoring power. Never use razor blades, scrapers, or abrasive cleaning compounds on the ceramic face.
Compatible Models & Systems
| System Family | Native Resolution | Supported Models |
|---|---|---|
| Toshiba TEC B-EV4T Series | 300 DPI (11.8 dots/mm) | B-EV4T-TS14-QM-R (Thermal Transfer) |
| Toshiba TEC B-EV4 Series (TT) | 300 DPI (11.8 dots/mm) | B-EV4T-TH14 / 300 DPI TT Chassis Models |
*Model Differentiation Note: This printhead is dedicated strictly to Thermal Transfer (B-EV4T) 300 DPI models. It is NOT physically interchangeable with Direct Thermal only (B-EV4D) printheads (Part # FMBC0077902) due to carriage bracket differences, nor with 203 DPI (GS14) variants (Part # FMBC0078002). Verify the model code on the base label prior to unsealing the component.
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 continuity failures and physical manufacturing defects upon arrival. As a thermal consumable, operational lifespan is determined by media abrasive characteristics, thermal darkness levels, ribbon quality, and routine alcohol cleaning compliance.
Return Policy: Precision industrial electronics consumable. Items that have been unsealed from their protective static-shielding bag, mounted, or energized on a printer cannot be returned or restocked under standard commercial terms. Please confirm your printer model and OEM part number with technical support prior to breaking the factory seal.
FMBC0078102
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