Software Communication Port Setup (Adapter IP Address Configuration)

Applicable Software: PrintExp Printer Control Software & Print Manager（PM）
Applicable Device: ALL LINKO Printers

1. Preparation Before Installation

1.1 Software Check:

Make sure the PrintExp printer control software is already installed on your computer.
If not installed, please refer to [2.1.1 Install Printer Control Software].

1.2 Adapter Connection:

Ensure the printer is powered on and the adapter is correctly connected to the computer.

Adapter Requirements: Use the original USB-to-Ethernet adapter included with the printer. If you need a replacement, please use a USB 3.0 to Gigabit (1000Mbps) Ethernet adapter to ensure stable communication and data transfer.

✅ Connected: The adapter indicator light is green. (See Figure 1.2-1)

❌ Not Connected: The indicator light is off. (See Figure 1.2-2)

Note: If the light is off, check the adapter power, USB port, and network cable connection. Fix any loose connections before continuing.

2. Configure a Static IP Address

2.1 Open the Network Configuration Panel

In the Windows search bar, type “Control Panel” and click the icon. (See Figure 2.1-1)
Click “Network and Sharing Centre”. (See Figure 2.1-2)
Click “Change adapter settings” on the left panel. (See Figure 2.1-3)
The “Network Connections” window will appear. (See Figure 2.1-4)

2.2 Open the Target Network Properties

In the “Network Connections” window:

Right-click Realtek USB GbE Family Controller.
Select “Properties”(See Figure 2.2).

⚠ Important Warning (Very Important!)

Only open the Realtek USB GbE Family Controller adapter.

Do NOT open or modify your computer’s main Internet connection (Ethernet or Wi-Fi).

If you change the wrong one, your computer will lose Internet access, and remote technical support will not work.

【Video Confirmation Aid】: To avoid incorrect selection, we recommend using the accompanying video guide to select the correct Ethernet.

2.3 Configure TCP/IPv4 Settings

2.3.1 In the “Properties” window, check Internet Protocol Version 4 (TCP/IPv4) and click “OK”. (See Figure 2.3-1)

2.3.2 Select “Use the following IP address”. (See Figure 2.3-2)

2.3.3 Enter the IP address: 192.168.127.XXX

IP Address Assignment Rules

New installation: Use the default IP address: 192.168.127.111
If previously configured/avoiding conflicts: Keep the first three segments unchanged: 192.168.127.xxx

Set the last segment to any unused number between 100–250.

2.3.4 Click the Subnet mask field; it will automatically fill: 255.255.255.0
Click “OK” to save the settings. (See Figure 2.3-3)

3. Verify the Connection Status

3.1 Launch PrintExp: Close all windows and double-click the PrintExp icon on the desktop. (See Figure 3.1)

3.2 Confirm Connection Status: Check the bottom-left corner of the PrintExp main interface:

✅ Connected: Status icon is green. (See Figure 3.2-1)

❌Not Connected: Status icon is red. Recheck the IP settings and adapter connection.（See Figure 3.2-2）

If you are unsure about any step, please contact the LINKO Technical Support Team for assistance.