1. Please do not search for the device in the Bluetooth function of the phone system, you need to go to the Print Master APP. Normally, we use Print Master to connect the printer via Bluetooth.
2. If you need a video demonstration, please open Print Master APP and click "Profile" in the lower right corner - Tutorials - Software instructions - Printer Connection to view a detailed video demonstration of printer connection.

1. The print side is the side from which labels can be removed (as shown below), check that the print side is facing left by placing the printer face up on a flat table.
2. Please open the cover to remove the paper roll and check whether the print head position is jammed by labels or strange objects.
3. Gently wipe the print head with a cotton swab moistened with alcohol. to make sure there is no dirt or stickers on the print head.

1. Open the app to check the printer's remaining power. If it's below 30%, fully charge the printer and try printing again.

2. Clean the print head:
• Turn off the printer and remove the label.
• If just printed, wait 30 minutes for the print head to cool.
• Use a cotton swab with alcohol or a print head cleaning pen to gently wipe the print head surface 5 times back and forth.
• Wait 5-10 minutes for the alcohol to evaporate, close the printer cover, and restart the printer.
• Check the print quality. Operation video HERE

3. Try other paper rolls to check if printing is clear.
• If not improved, send us a photo of the blurry print and a screenshot of your printer's firmware information.

Before printing, click the power button to allow the printer to perform a positional calibration (this may waste the first label). Please note: After the calibration is complete, you can edit the content to print normally.After printing, you need to peel off the label flat along the paper exit.If you do not need to change the size or paper roll, do not remove the paper roll after printing (no need to calibrate for the next use)

Please follow the steps in the video HERE. 

1. Make sure the paper roll is installed correctly and pull it out of the paper outlet.
2. Clean the print head with alcohol.
3. If the indicator light is still red, try the following steps: When the printer is on and the Remove Label Paper Roll indicator light is red, make sure the printer is in standby with no labels.Press and hold the Power button for 10-20 seconds and release it when the indicator light turns orange.Reinstall the paper roll, turn on the printer and start printing.

1. While charging, use a thimble or similar tool to poke the reset hole near the power port. Then try turning on the printer.
2. If it still doesn't start, replace the data cable and use a 5V-2A charger. Try turning it on after charging for 30 minutes. If it still won't turn on, please record a video showing the issue.

Our printers are thermal printers, which use heat to create images on thermal paper and cannot print in color. However, you can use labels with colored backing. Purchase link HERE