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How to connect a printer and a cash drawer

5 min readUpdated October 29, 2026

Connect a compatible printer, by Bluetooth or Wi-Fi, then a cash drawer, to print your receipts and order tickets.

To print receipts or order tickets, you need a compatible printer connected to the Tunder app.

The app connects to Bluetooth printers and to Wi-Fi or Ethernet printers. It has no USB connection. You add a printer only in the app; the back-office then lets you see and adjust your Wi-Fi or Ethernet printers.

App

Connect a printer from the app

Turn on your printer and keep it close to your device before you start.

  1. Open Printers

    Tap the menu icon ☰ at the top left, then Settings, then the Printers tab.

  2. Tap the + button

    Tunder first shows you the printing features. Tap “Add printer”.

    • Free: you can add only one printer. To add more, you need the Premium subscription.

  3. Choose your model

    In the “Compatible models” list, select your printer, then tap “Continue”.

    • Other printer model: you can continue, but Tunder warns you that only compatible printers are supported. Another model may work, without guarantee or support.
    • The “View compatible printers” button opens the Hardware page of the website.

  4. Choose the connection type

    Tap “Bluetooth” or “Wifi, ethernet”, depending on how your printer connects.

  5. For Bluetooth: pair the printer, then pick it

    First pair the printer with your device in the device's Bluetooth settings. Then go back to Tunder: it searches for Bluetooth printers nearby. Tap yours.

    • Permissions: if Tunder asks you to turn on Bluetooth or to allow access to it, tap the button that opens your device settings, then come back.
    • Printer not in the list: on iPhone and iPad, tap “Search more devices”.

  6. For Wi-Fi or Ethernet: pick the printer that was found

    Tunder searches for printers connected to your router (your box). The printer and your device must therefore be on the same network. Tap your printer under “Printers nearby”.

    • Permission: if Tunder asks for local network access, open your device settings and allow it.
    • Printer not in the list: tap “Search by IP address”, enter the printer's IP address (like 192.168.1.1), choose the brand then the model, and run “Search printer”. The IP address is in the printer's configuration: see its manual.

  7. Set up the printer and save

    The printer's form opens. Run a “Print test” to check the connection, adjust the options, then confirm with the button at the top right. Tunder confirms with “Printer added”.

    • Printer name: for example “Kitchen” or “Bar”.
    • Type of ticket: “Customer receipt”, “One item per ticket” or “Orders ticket” (big characters, for the kitchen or the bar). At least one type must be ticked.
    • Paper width: 57 mm or 80 mm, depending on your printer's roll.
    • Print automatically: the receipt comes out at the end of each sale.
    • Premium: order tickets and advanced printer options are reserved for the Premium subscription.

Tip. If printing does not work, first check that the printer is on, connected (Bluetooth or Wi-Fi) and compatible. After several attempts, Tunder shows “Printer connexion issue”: restart the printer, then tap “Try again”.

Compatible printers

The app only works with specific models. The up-to-date list, with each model's connection type, is on the Hardware page of the website (tunder.co/en/hardware). The list offered in the app contains these models:

  • Star Micronics

    TSP143IIIBI-230, mC-Print3, mC-Print2, TSP143IV and mPOP Bluetooth.

  • Epson

    TM-M30II and TM-T20III Ethernet.

One printer for several registers

Several registers can use the same printer only if it is a Wi-Fi or Ethernet printer. All registers must be on the same network. A Bluetooth printer cannot be shared: it stays paired with the register where you paired it.

Connect a cash drawer

The cash drawer does not connect to the tablet or the phone: it plugs into the printer.

  1. Plug the drawer into the printer

    Use the compatible printer already connected to Tunder. Connect the drawer to the back of the printer with the cable supplied with the drawer.

  2. Choose which payments open it

    In the app: ☰, Settings, General tab, “Payment types”, then the payment type you want (cash, for example). Turn on “Automatic cash drawer opening”, then save.

    • The drawer opens when a sale is paid with a payment type that has this option.
    • In the back-office (admin.tunder.co): Settings, General tab, “Payment types”, then the payment type's form: the setting is the same.

Print receipts and order tickets

Once the printer is connected, you print the customer's receipt after each sale, automatically or on demand depending on your setting. The order ticket, in big characters for the kitchen or the bar, needs the Premium subscription. To set it up with one or several printers, see the article “How to configure and print order tickets”.

Frequently asked questions

Can I connect a printer by USB?
No. In the app, adding a printer only offers “Bluetooth” and “Wifi, ethernet”.
How many printers can I add?
On the free plan, only one. With the Premium subscription, there is no limit: you can add as many as you like, for example one for the register and one for the kitchen.
Tunder can't find my Bluetooth printer. What should I do?
First pair the printer with your device in its Bluetooth settings, then search again in Tunder. On iPhone and iPad, also tap “Search more devices”. Check that Tunder is allowed to use Bluetooth.
Tunder can't find my Wi-Fi printer. What should I do?
Check that the printer and your device are on the same Wi-Fi network, and that Tunder is allowed to access the local network. Otherwise, tap “Search by IP address” and enter the printer's IP address.
My printer is not in the list. Can I use it?
You can choose “Other printer model” and continue, but there is no guarantee or support. We recommend a model from the Hardware page.
Where can I see my printers from a computer?
In the back-office (admin.tunder.co): Settings, Printers tab. Only Wi-Fi and Ethernet printers appear there. A Bluetooth printer is set up on the register it is paired with. To add a printer, use the app.
The cash drawer doesn't open. What should I check?
Check that the drawer is connected to the printer and that the printer is connected. Also check that the payment type used has the “Automatic cash drawer opening” option (Settings, General tab, “Payment types”).
My receipt prints unreadable characters. What should I do?
On a Bluetooth Star Micronics printer, you most often need to update the printer's firmware. Follow the article “My Star Micronics printer prints unreadable characters”.

See also

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