Brother Printer Brand Guide with a clear comparison table at the top for idestore.com.au:

Brother Label Printer Purchasing Guide

At‑a‑Glance Comparison

Printer Model	Print Technology	Resolution	Print Width	Best Suitability
TD-4420DN	Direct Thermal	203 dpi	~104 mm	General barcode and shipping labels; fast desktop use
TD-4420TN	Thermal Transfer	203 dpi	~108 mm	Durable labels requiring ribbon printing
TD-4520TN	Thermal Transfer	300 dpi	~105.7 mm	High-detail labels (small barcodes/text)
TD-4520DN	Direct Thermal	300 dpi	~104 mm	Crisp barcode and shipping labels
TD-4550DN	Direct Thermal	300 dpi	~104 mm	Flexible connectivity for office or retail
TD-4750	Thermal Transfer	High durability	~104–108 mm	Long-lasting product or asset labels
TJ-4020TN	Thermal Transfer / Direct Thermal	203 dpi	~107 mm	Mid-range industrial use
TJ-4420TN	Industrial Thermal Transfer	203 dpi	~104 mm	Heavy-duty industrial workflows
TJ-4522TN	Industrial Thermal Transfer	300 dpi	~104 mm	High-volume industrial/manufacturing labels

TD‑4 Series (4420 / 4520 / 4550 / 4750) are ideal for offices, warehouses, retail counters, and e-commerce shipping stations.

Direct Thermal vs Thermal Transfer
Direct Thermal printers (e.g., TD‑4420DN) use heat-sensitive media, require no ribbon, and are low-maintenance — ideal for short-term labels like shipping or inventory tags.
Thermal Transfer models (e.g., TD‑4420TN, TD‑4520TN) use coated ribbons to produce durable, long-lasting labels that resist abrasion, heat, and chemicals.
Resolution Differences
- 203 dpi: Fast printing, suitable for standard barcodes and shipping labels.
- 300 dpi: Produces higher detail for small text, graphics, or high-density barcodes.
Model Highlights
- TD‑4420DN – Reliable direct thermal printer with USB, serial, and LAN connectivity; ideal for general shipping and warehouse labels.
- TD‑4420TN – Thermal transfer for durable product tags or outdoor labels.
- TD‑4520TN – High-resolution 300 dpi output for crisp, detailed labels.
- TD‑4550DN – Direct thermal with enhanced connectivity, including Wi‑Fi and Bluetooth.
- TD‑4750 – Robust thermal transfer option for long-lasting labels.

TJ‑Series Titan Industrial Label Printers are built for high-volume environments such as manufacturing, large warehouses, and logistics hubs.

TJ‑4020TN – Mid-range industrial printer with 203 dpi resolution, suitable for standard industrial workflows.
TJ‑4420TN – Larger chassis for continuous duty cycles and heavier label rolls.
TJ‑4522TN – High-volume industrial printer with 300 dpi, fast speeds, internal rewinder, and broad connectivity, ideal for thousands of labels per day.

Direct Thermal – Simple, cost-effective; no ribbon required; ideal for short lifespan labels.
Thermal Transfer – Uses ribbon for long-lasting, fade-resistant labels, suitable for product ID or compliance labels.

Many models include USB, Serial, Ethernet, and optional Wi‑Fi/Bluetooth for flexible network integration.
Support for SDKs and standard command languages (ZPL II, EPL, DPL) ensures compatibility with existing label workflows.

Supports continuous, die-cut, fan-fold, notch, and tag media — from wristbands to shipping labels.
Multiple models support wide label widths up to ~118 mm for larger shipping or pallet tags.

Shipping & Barcode Labels: TD‑4420DN for fast, reliable direct thermal printing.
Product / Asset Tags: TD‑4420TN or TD‑4520TN for durable thermal transfer labels.
High-Resolution Graphics: 300 dpi models like TD‑4520TN or TD‑4550DN for fine detail.

Heavy Daily Print Runs: TJ‑4522TN for high speed, rewinding, and heavy-duty design.
Flexible Connectivity: All TJ series models support advanced host connections and optional wireless.

Label Design Software: Brother provides P-touch Editor and BarTender for custom label layouts.
Media Choice Matters: Use compatible ribbons and label stock designed for thermal or thermal transfer printers to ensure durability.