Assigning a static IP ensures your Sunmi printer keeps the same network address at all times. This helps POS systems reliably locate it, reducing delays, avoiding reconnect issues after restarts or outages, and simplifying troubleshooting.
Enhances reliability, manageability, and speed to streamline your POS ordering workflow.
Choosing the Right IP Address
1. Understand Your Router’s DHCP Range
Most routers assign IPs via DHCP within a specific block (e.g., 192.168.1.1–192.168.1.100), while reserving a gateway IP (often .1 or .254)
2. Pick a Static IP Outside the DHCP Pool
Choose a high number outside the range (e.g., 192.168.1.200 if DHCP stops at 100).
Ensure the first three octets match your network (e.g., 192.168.1.x).
Avoid
.0,.1,.254, and.255, which are often reserved.
3. Verify the IP Is Unused
Use the Windows command prompt and
ping <IP address>from a PC or laptop. If there’s no response, it’s likely free.
Recommended IP example:
If your router/gateway is 192.168.1.1 and DHCP runs roughly 10–100, choose something like 192.168.1.188 for your printer.
Instructions:
Option 1: Static IP address via Ethernet cable connection
Connect one end of an Ethernet cable to your network source (e.g., router or switch), then plug the other end into the Ethernet port on the back of the Sunmi printer.
A solid blue LAN indicator light confirms that the printer successfully established a wired network connection..
Do a feed print by pressing the button at the back of the printer 3 times.
4. We can see the current [LAN] IP address here is 192.168.0.100 (DHCP)
5. Type the IP address directly into your browser’s address bar and press Enter.
6. You'll be taken to the Admin's login page. The initial password is empty to allow you to login directly. Click 'Log in'
7. Choose Ethernet on the left-hand menu.
8. Set the Static IP,
Static IP address: For this example we're putting 192.168.0.188
Netmask(Static) : we can use the same subnet mask 255.255.255.0
Gateway(Static) : you can get this information from the network printout(feed) , 192.168.0.1 then hit Save.
9. Do a feed print by pressing the button at the back of the printer 3 times.
We now have a Static IP [LAN-Fixed] as 192.168.0.188
Option 2: Static IP address via WiFi connection
Go back to the Admin webpage of your Ethernet DHCP, and choose Wi-Fi on the left-hand menu.
You’ll see the IP address shown as 0.0.0.0, which indicates the printer isn’t using a static IP and has not obtained a DHCP address—meaning it’s currently not connected to any network.
2. Click on Configure SSID button, then enter your network's SSID and password.
3. Once you click OK, you should see a message above which says "Saved successfully!"
4. Once the printer’s WiFi is configured, unplug the Ethernet cable at the back of the printer. The device will then automatically switch over and start using the WiFi connection.
5. Do a feed print by pressing the button at the back of the printer 3 times.
We now have a WiFi (DHCP) IP address of 192.168.0.102
6. Follow the same procedure as the Ethernet method above. Type the WiFi's IP address 192.168.0.102 directly into your browser’s address bar and press Enter.
7. You'll be taken to the Admin's login page. The initial password is empty to allow you to login directly. Click 'Log in'
8. Choose Wi-Fi on the left-hand menu.
Set the Static IP settings,
Static IP address: For this example we're putting the next IP 192.168.0.189
Netmask(Static) : we can use the same subnet mask 255.255.255.0
Gateway(Static) : you can get this information from the network printout(feed) , 192.168.0.1 then hit Save.
9. Do a feed print by pressing the button at the back of the printer 3 times.
We now have a Static IP [WiFi-Fixed] as 192.168.0.189
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