Watch our setup video and follow the FAQ troubleshooting steps to resolve 80% of issues. If you need help from customer serivce team, click the Get Support button to contact our team. Provide your basic details, and we'll respond within 12 hours after receiving your email.

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FAQ

1. How Do I Set Up and Connect My ST80 Printer?

For Phones and Tablets

1.  Download the Flash Toy app from the App Store or Google Play.

2.  Press and hold the Power button for about 2 seconds to turn on the printer.

3.  Turn on Bluetooth on your phone or tablet.

4.  Open the Flash Toy app and tap Connect to select your ST80 printer.

5.  Once connected, you can import a document or image, preview it, and tap Print.

Important: Please connect the printer through the Flash Toy app rather than pairing it directly in your phone's Bluetooth settings.

For Computers

Connect the ST80 to your computer using the included USB cable.

Please visit the ST80 Driver Page and follow the instructions to download and install the correct driver: https://nulltonex.com/pages/st80-driver

The ST80 supports USB connection with: · Windows · macOS

If the printer is not detected, restart both the printer and computer, reconnect the USB cable, and reinstall the driver.

2. What Should I Do If My ST80 Won't Connect?

For Bluetooth Connection

If the printer cannot be found or connected:

1.  Make sure the ST80 is powered on.

2.  Make sure Bluetooth is enabled on your phone or tablet.

3.  Connect the printer through the Flash Toy app.

4.  Make sure the printer is not already connected to another device.

5.  Restart both the printer and your mobile device, then try again.

Indicator: A solid blue light means Bluetooth is connected successfully and the printer is ready to print.

For USB Connection

If your computer cannot detect the ST80:

1.  Check that the USB cable is securely connected.

2.  Restart both the printer and computer.

3.  Reinstall the ST80 driver from the ST80 Driver Page.

4.  For macOS, if the driver is blocked during installation, go to Security & Privacy, select Open Anyway, and continue the installation.

ST80 Driver Page: https://nulltonex.com/pages/st80-driver

If the issue continues, please contact Customer Support and provide a screenshot of the error message or printer settings.

3. How Do I Load Folded Thermal Paper or Tattoo Transfer Paper Correctly?

The ST80 is a thermal printer and does not require ink or toner. It supports thermal paper and tattoo transfer paper. Regular copy printer paper is not supported.

For Folded Thermal Paper

1.  Make sure the printing side is facing up.

2.  Load the paper straight into the paper inlet.

3.  Make sure the black positioning marks are facing down.

4.  For best results, use compatible paper with two black positioning marks.

Third-party paper may cause compatibility or paper-positioning issues.

For Tattoo Transfer Paper

1.  Remove the yellow bottom paper.

2.  Remove the brown protective paper.

3.  Insert the paper with the blue transfer paper facing down.

4.  Make sure the white tracing paper is facing up.

5.  After printing, peel off the blue transfer paper and keep the white tracing paper.

4. Why Is My ST80 Printing Blank, Blurry, or Incorrectly?

If your print is blank, blurry, or unclear, check the following:

· Make sure you are using compatible thermal paper or tattoo transfer paper.

· For folded paper, make sure the printing side is facing up and the black positioning marks are facing down.

· For tattoo transfer paper, remove the brown protective paper before printing.

· Make sure the tattoo transfer paper is inserted in the correct direction.

· Use high-quality compatible paper. Poor-quality paper may cause blurry printing.

· If the printer shuts down or prints intermittently, the battery may be low. Charge the printer before trying again.

If the issue continues, please contact Customer Support and provide a photo or short video showing the printing problem.

5. What Do the ST80 Indicator Lights Mean?

·  Solid Blue: Bluetooth connected / Ready to print.

·  Solid Green: Power on / Charging complete.

·  Slow Flashing Green: Charging while the printer is powered on.

·  Solid Red: Out of paper / Printhead overheated / Low battery.

·  Slow Flashing Red: Charging while the printer is powered off.

 

If the red light stays on:

1.  Check that paper is loaded correctly.

2.  Charge the printer if the battery is low.

3.  If the printer is hot, allow the printhead to cool before printing again.

4.  Use a 5V/2A power adapter for charging.

If the issue continues, please contact Customer Support and provide your order number and a short photo or video showing the printer status.