DTF Printer Electronics: I3200 Printhead Boards, 4720 Decoder & Hoson

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Hoson Mainboards, Carriage Boards & Decoder Cards for DTF Printers

Hoson DTF electronics for Epson i3200 and 4720 printhead-based printers. Carriage boards, motherboards for 1-head, 2-head and 4-head DTF builds, Hoson adapter boards, and 4720 single-head decoder cards. The control electronics that make your Epson printhead actually fire. Same-day shipping from our Doral, Florida warehouse on orders placed before 2 PM EST.

Browse the boards below, or search by your printer configuration or Hoson part number (e.g. LJ-111124 carriage board, LJ-576565 2-head motherboard, 4-head assembly kit, 4720 decoder card).

Frequently Asked Questions

What's the difference between a carriage board, a motherboard, an adapter board, and a decoder card?

Each board does a different job in your DTF printer's electronics chain. Carriage board (LJ-111124) — mounts directly on the print carriage and drives a single printhead with the firing waveforms. Replaces when nozzle dropouts persist across cable swaps. Motherboard (LJ-576565) — the main controller that talks to your computer/RIP, drives the carriage motor, and routes data to the carriage boards. The LJ-576565 supports 2× I3200-A1 printheads. Larger 4-head DTF setups use a different mainboard (our 4-head assembly kit). Adapter board (Hoson Printhead Adapter) — the small interface PCB that connects an Epson i3200 printhead's flex cable to the Hoson carriage board's connector. Cheap, replaceable wear part. Decoder / decryption card — defeats the chip lock on the Epson 4720 printhead so it can be used in Chinese DTF systems instead of being restricted to genuine Epson printers.

Which Hoson board do I need for my DTF printer configuration?

Match by printhead count and printhead model. 1-head DTF builds (I3200-A1) — Hoson Carriage Board LJ-111124 ($630) drives the head; pair with the appropriate Hoson motherboard. 2-head DTF builds (2× I3200-A1) — Hoson Motherboard LJ-576565 ($630) handles both heads on one mainboard. 4-head DTF builds — Hoson 4-Head Assembly Kit ($1,690) is the complete electronics package. 4720-based DTF builds — pair the Hoson controller with the 4720 Single Head Decoder Card ($350) to unlock the 4720 head. Hoson Adapter Board ($79.99) is the small interface PCB used at the printhead end — typically replaced on schedule or as a diagnostic step when nozzle dropouts persist after damper and cable replacement.

How do I diagnose a board failure vs a printhead failure?

Board failures and printhead failures can look similar — both cause missing nozzles or no print output. Diagnostic order: (1) Run a nozzle check immediately after a cleaning cycle. If the SAME nozzles drop every time, suspect printhead. If the pattern changes from check to check, suspect electronics. (2) Listen for fire signals — the printhead should make a faint clicking sound during print. Silent head = board issue (no signal reaching the head). (3) Swap the adapter board first (cheapest test at $79.99). (4) If the carriage gets warm but the head doesn't fire, the carriage board is likely the culprit. (5) If the printer won't move or the RIP can't connect, suspect motherboard. Replace damper, cable, and adapter board BEFORE concluding the printhead or mainboard is dead.

What does the 4720 decoder card do, and is it legal?

The 4720 Decryption Card (Single Head Decoder) is an electronic interface that allows an Epson 4720 printhead to be used in non-Epson printer systems (typically Chinese DTF builds). Epson designs its printheads with chip-level locks that tie the head to original Epson printers; the decoder card translates Hoson controller signals into a format the 4720 head will accept. Decoder cards are widely used and openly sold in the global DTF supply market — they're a standard component in aftermarket DTF builds. They do not modify the printhead itself; they sit between the controller and the head. As with any aftermarket modification, check your local commercial regulations and OEM warranty implications before installing.

Are these boards new or refurbished, and what's the warranty?

All Hoson boards and decoder cards in this collection are brand new, factory-tested components — never used, refurbished, or pulled from machines. Boards carry a manufacturer warranty against defects. Damage from incorrect installation (reversed connectors, wrong voltage, static discharge), water/ink contamination, or use outside the rated specs is not covered. Ground yourself before handling — these are static-sensitive components.

What is the return policy on mainboards and carriage boards?

Sealed, unused boards are eligible for store credit only, not a refund to the original payment method. Installed or powered-on boards cannot be returned. Inspect your delivery on arrival; hidden defects must be reported within 48 hours. Decoder cards and installed electronics are non-returnable. See our full refund and return policy.

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