How to Connect a Star TSP100II to the Internet

The Star TSP100II is a compact thermal receipt printer widely used in retail and hospitality environments. While it's a straightforward device for printing receipts, getting it connected to a network — especially for shared or remote printing — involves a few different paths depending on your model variant and infrastructure. Here's what you need to know.

Understanding the TSP100II Model Variants

Before anything else, the connection method available to you depends entirely on which version of the TSP100II you have. Star Micronics produces several variants under this product line, and they differ significantly in their connectivity options:

If your unit is the TSP143IIBI, it connects via Bluetooth — not technically internet connectivity, but local wireless pairing. If you want true network/internet access for shared printing across devices, the TSP143IIW (Wi-Fi model) or a USB-to-LAN adapter configuration is where to focus.

Checking the label on the bottom of the printer will confirm which variant you have. The model number is printed there.

Connecting the TSP143IIW to a Wi-Fi Network 🌐

The Wi-Fi variant supports IEEE 802.11 b/g/n wireless networking. Setup typically follows one of two methods: Access Point (Infrastructure) Mode or Simple AP Mode.

Infrastructure Mode (Standard Wi-Fi Setup)

This is the mode you'd use in most retail or office environments where you have an existing router:

1. Download Star's configuration utility — the TSP100IIW Utility or the broader Star WebPRNT tools, available from Star Micronics' support site.
2. Connect the printer to your computer temporarily via USB to configure the Wi-Fi settings before cutting the cord.
3. Using the utility, enter your SSID (network name) and Wi-Fi password (WPA2 passphrase).
4. Set whether you want DHCP (the router assigns an IP address automatically) or a static IP address (you assign one manually).
5. Save the settings to the printer, then power cycle it.
6. Once connected, the printer will appear on your local network, and you can add it as a TCP/IP printer on any computer using its assigned IP address and port 9100 (standard RAW printing port for Star printers).

Static IP vs. DHCP: Why It Matters

For shared printing environments, static IP addressing is strongly recommended. If the printer receives a new IP address from DHCP after a router restart, every connected device may lose its printer mapping. Assigning a fixed IP — either through the printer utility or via a DHCP reservation on your router — keeps things stable.

Using the USB Model with a LAN Adapter

If you own the TSP143IIU (USB-only model), Star offers a proprietary LAN adapter accessory that converts the USB connection into an Ethernet network connection. This setup:

• Connects the printer via CAT5/6 Ethernet cable to your router or network switch
• Makes the printer accessible over your local network as a TCP/IP device
• Does not add Wi-Fi capability — it's wired LAN only

This is a practical solution for permanent point-of-sale installations where a wired connection is more reliable than wireless.

Connecting via Bluetooth (TSP143IIBI)

The Bluetooth model doesn't connect to your internet network in the traditional sense. Instead, it pairs directly with a tablet, phone, or computer over Bluetooth. This is useful for:

• Mobile POS setups (iPad with Square, Shopify POS, etc.)
• Environments where running cables or joining a Wi-Fi network isn't practical

Pairing follows the standard Bluetooth discovery process on your device. Star also provides an SDK and app support for common POS platforms.

Driver and Software Considerations

Regardless of connection type, the TSP100II requires the correct driver installed on any host computer. Star Micronics provides:

• OPOS/JavaPOS drivers for point-of-sale software integration
• Virtual COM port drivers for USB setups
• Generic text and raster drivers for standard Windows/macOS printing

For network-connected setups specifically, the printer is added as a standard TCP/IP port device in your OS print settings. On Windows, this is done through Devices and Printers → Add a Printer → Add a local printer → Create a new port (Standard TCP/IP).

Variables That Change the Setup Process ⚙️

Getting the TSP100II online isn't a single universal procedure. Several factors shape how the process actually plays out for a given installation:

• Network security settings — WPA3 networks or enterprise-grade Wi-Fi with RADIUS authentication may require additional configuration or may not be supported at all by the printer's firmware
• POS software compatibility — some POS platforms have native Star printer support; others require manual port configuration or middleware
• Number of devices sharing the printer — a printer shared across multiple terminals over a network behaves differently than a one-to-one USB connection
• Firmware version — older firmware on the printer may lack features or have different utility interfaces than current releases; Star periodically releases firmware updates
• Operating system — macOS, Windows, iOS, and Android each have different driver availability and configuration paths
• Existing network infrastructure — a simple home router setup versus a managed network with VLANs will affect how the printer is discovered and accessed

A Range of Setups in Practice

A single-iPad food truck setup using Bluetooth pairing is a fundamentally different configuration than a multi-terminal restaurant using a wired LAN adapter for a centralized kitchen printer — even though both involve a TSP100II. Similarly, a developer integrating the printer with a custom web app via Star's WebPRNT SDK has a different process than a retailer installing it as a shared Windows network printer.

The physical connection method, the software stack, and the number of devices involved each compound in ways that make the "right" configuration genuinely dependent on your specific environment. What that looks like for your setup — the network type, the POS software, the device ecosystem — is the piece that only your situation can answer.