✅ Why is my Y813 printing blank labels, skipping labels, or feeding paper incorrectly?

Please check the following:

• Make sure you are using direct thermal labels.

• Load the labels with the printable label side facing up.

• Make sure the printer cover is completely closed.

• Adjust the label width guides so they fit the label properly.

To check whether the printer itself is working correctly, press and hold the Feed button for 3 seconds.

The printer will:

• Flash the blue light once   • Beep once   • Print a self-test page

If the self-test page prints correctly, the printer hardware is working normally. Please check your label file, print settings, app, or computer driver.

✅ Troubleshooting for skipped labels or incorrect paper feeding:

The printer may need to relearn the label size.

1. Load the labels correctly with the printable side facing up.

2. Adjust the label width guides.

3. Press and hold the Feed button for 6 seconds.

4. Release the button after the red light flashes twice and you hear 2 beeps.

This starts Paper Calibration / Label Learning.

If calibration was started accidentally, press and hold the Feed button for 9 seconds. The red light will flash three times, and the printer will beep 3 times to cancel calibration.

✅Why is my shipping label printing too small, too large, sideways, or only using part of the label?

The most common cause is that the shipping label was downloaded from the shipping platform in the wrong page size.

For the Y813, the standard shipping label size is: 4 × 6 inches / 100 × 150 mm

When creating or downloading your shipping label from Amazon, eBay, Etsy, Shopify, USPS, UPS, FedEx, or another shipping platform, please select: 4 × 6 in / Thermal Label

Do not select: • 8.5 × 11 in  • Letter Size  • A4  • Full-page shipping label

If you download an 8.5 × 11 in or A4 PDF, the actual shipping label may only occupy part of the page. Printing that file directly can cause the label to appear too small, off-center, cropped, or incorrectly positioned.

Whenever possible, return to the shipping website and re-export or download the label directly in 4 × 6 format instead of trying to resize an 8.5 × 11 file.

Before printing, also check:

• Paper size: 4 × 6 in / 100 × 150 mm • Print orientation • Print preview

• Scale / Fill settings • Auto Crop, if available

When printing from the Pixmate Printer app, preview the label before printing and confirm that the entire shipping label fills the 4 × 6 page correctly.

If the Y813 self-test page prints normally but your shipping label does not, the issue is usually related to the original shipping label file or print settings, rather than the printer itself.

✅ How do I connect the Y813 to an iPhone or Android phone?

The new Y813 connects to iOS and Android devices through Bluetooth using the Pixmate Printer app.

1. Download Pixmate Printer from the App Store or Google Play.

2. Turn on Bluetooth on your phone.

3. Turn on the Y813 printer.

4. Open the Pixmate Printer app.

5. Tap Add to search for nearby printers.

6. Select the detected Y813 printer.

7. Tap Connect.

8. Import your PDF or image.

9. Check the print preview and tap Print.

We recommend connecting the printer inside the Pixmate Printer app, rather than pairing and printing directly from the phone's Bluetooth settings.

✅ If the printer cannot be found:

• Make sure the printer is powered on.

• Make sure Bluetooth is enabled on your phone.

• Move the phone closer to the printer.

• Confirm that you are searching from inside Pixmate Printer.

• Make sure the printer is not already connected to another phone.

• Restart the printer and your phone's Bluetooth, then try again.

✅ How do I connect the Y813 to a Windows PC or Mac?

For Windows and macOS, connect the Y813 to your computer using the supplied USB cable.

Download the latest Y813 driver here: https://nulltonex.com/pages/y813printer

Please make sure you download the driver for the Y813. Do not install the older Y813BT driver.

After installing the driver:

1. Connect the Y813 to your computer via USB.

2. Turn on the printer.

3. Add or select Y813 in your printer settings.

4. Set the paper size to 4 × 6 in / 100 × 150 mm before printing.

If your computer cannot detect the printer:

• Disconnect and reconnect the USB cable.

• Try another USB port.

• Restart the printer and computer.

• Confirm that the correct Y813 driver is installed.

• Make sure the printer's USB function is enabled.

To switch the printer's USB function ON/OFF, press and hold the Feed button for 12 seconds. The red light will flash four times and the printer will beep 4 times.

✅ macOS Driver Security Warning

If macOS blocks the driver during installation:

1. Click OK on the warning message.

2. Open System Settings / System Preferences.

3. Go to Privacy & Security / Security & Privacy.

4. Find the blocked Y813 driver.

5. Click Open Anyway.

6. Click Open to confirm.

7. Complete the installation.

8. Open Printers & Scanners.

9. Click + and add Y813.

✅ What do the Y813 indicator lights and beep sounds mean?

Blue Light

Solid blue light: The printer is ready for use.

Blinking blue light: Printing is paused. Press the Feed button once during printing to resume.

Red Light

Blinking red light: The printer cover is open. Close the printer cover securely.

Red light flashes twice repeatedly: The printer is out of paper or the labels are not loaded correctly. Reload the labels and make sure the printable side is facing up.

Alternating Red and Blue Lights

This indicates that the print head is overheating. Stop printing and allow the printer to cool down before continuing.

Beep Signals

• 1 beep: Power on / Self-test / Factory reset

• 2 beeps: Paper calibration / Label learning enabled

• 2 beeps repeatedly: Print head overheating warning

• 3 beeps: Paper calibration canceled / Out of paper

• 4 beeps: USB function switched ON/OFF

Factory Reset

To reset the new Y813 to factory settings:

1. Make sure the printer is powered on and in ready state.

2. Press and hold the Feed button.

3. Keep holding until the blue light turns on and you hear 1 beep.

4. Release the Feed button. The printer is now reset to factory settings.