Star Micronics TSP100IIIW (Wifi) receipt printer

Model number: TSP143IIIW WiFi

Where to buy the TSP100IIIW Wifi receipt printer

The Star Micronics TSP100IIIW Wifi receipt printer is available from the Shopify Hardware Store. This device is compatible with both iOS and Android.

Buy printer paper

Any thermal paper rolls with the following dimensions work with the printer:

  • width is 3 1/8" (80mm)
  • length is no more than 230 feet (70m)

For an explanation of how to load the receipt printer, see the guide in the manufacturer's hardware manual.

Plug in your Wifi printer

You need to connect your printer to the power supply.


  1. Plug one end of the power cable into the back of your receipt printer.

  2. Plug the other end of the cable into a power outlet and turn the printer on.

If paper is loaded, then a diagnostic report prints.

Installation and setup

The TSP100IIIW Wifi receipt printer connects to your wireless network using a Wifi interface.


  1. Connect your printer to the power supply.

  2. If your printer has already been set up for another wifi network, then initialize the printer's network settings.

  3. In the Shopify POS app, tap Store > Hardware > Connect receipt printer.

  4. In the Select printer modal, tap Wi-Fi.

  5. Follow the instructions in the Connect to printer hotspot modal.

  6. Tap Connect beside your printer name in the Available Wi-Fi printers list.

After connecting your printer, don't forget to:

Initialize the printer network settings

If you want to connect your printer to a new wifi network, then you need to initialize the printer's network settings.

When you initialize your printer, the settings are reverted to their defaults. You need to reconfigure the settings that you use, such as the wireless and password settings.


  1. Turn the printer off.

  2. Press and hold the RST button while you turn the printer on.

  3. Hold the RST button until the printer resets twice. When the device resets, it makes an internal operation noise.

  4. Turn the printer off.

If your TSP100IIIW printer stops working

Your printer might not be working for several reasons:

  1. Make sure that your Wi-Fi network is set up correctly.

  2. Check to see that you are connected to the internet. Your printer requires an internet signal to run properly.

  3. Check to see that your printer appears on the Hardware screen in the Shopify POS app. If the printer is improperly connected, it will either not show up on the settings screen or it will appear as "Disconnected":

Shopify POS - Hardware settings screen disconnected

  1. Try turning your printer off and then on. This will restart your printer and usually rectify any issue on the printer's end.

  2. To debug your printer, turn your printer off and press and hold the FEED button. While still holding the FEED button, turn the printer back on. Let the printer print off the firmware information and then let go of the feed button. The printer will try to connect to the internet and then continue to print off more diagnostic information. Take a look at the printed paper to see if any of the following issues match the text displayed:

  • The IP address under "Current IP Parameters Status" displays zeroes.

    The first thing to do is turn off the printer, wait five seconds, and turn it back on. Try the debug process again.

    If that doesn't work, then confirm that you've followed the printer installation and setup instructions. Make sure that your printer is plugged in and connected to your wireless network.

    Finally, if none of the above solutions worked, contact your internet provider. It could be a problem with your internet setup.

    TSP100III WLAN zero IP address

    • I see a "No Host Connection" message.

    This usually happens when you lose your internet connection or when your printer is not connected to your router properly. Check your internet signal and wireless router.

    TSP100III WLAN no host connection

If the ERROR indicator is blinking red

This is caused when there is no paper present in the printer. Open the printer, replace the paper, and close the lid. The ERROR indicator should turn off and the READY indicator should come on.

Paper jams

If you feed the paper into the receipt printer at an angle, it is likely you'll cause a paper jam. If this happens, turn off the printer, open it up, and try feeding the paper in again.

If you are trying to make your receipt narrower than the specified 3 inch width, make sure you use the divider provided. Don't fold the paper when you feed it into the printer.

Customize receipts

You can customize both the basic receipt layout and the transaction description.

Limitations when using the Star Micronics TSP100IIIW (Wifi) receipt printer

Shopify POS won't work with multiple TSP100IIIW (Wifi) receipt printers at the same time.

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