<br>Do not support MAC system, Bluetooth, mobile phone system!!</br> <br>Do not support MAC system, Bluetooth, mobile phone system!!</br> <br></br> <br><b>Please read the prompts before installation.</b></br> <br><b>1. Connection tips: </b></br> Please make sure that the USB cable is fully inserted into the printer. After connecting the cable to the correct position, please wait for about 30s~1 minute for the USB hardware driver to load successfully.</br> <br></br> <br><b>2. Driver download and installation skills:</b></br> <br>a. Use the CD driver or U disk to download the printer driver.</br> <br>B. If you need an online download link, please contact us</br> <br>C. Driver installation: For driver installation, please refer to the driver installation video on the product page. If you encounter any problems during the driver download and installation process, please contact us.</br> <br></br> <br><b>3. Before installing the driver:</b></br> <br>Please delete the drivers of other brands from your computer, restart, and then install our drivers, otherwise a driver conflict will occur.</br> <br></br> <br><b>Printer questions and answers</b></br> <br><b>1. The printer does not print but only feeds paper</b></br> <br>First check if the printing paper is placed upside down, and use the smooth side for printing. Putting the paper upside down will cause the content to be unprinted.</br> <br> If it still does not work, please check whether the red light of the printer is flashing. If it is flashing, it means that the paper is not set correctly or there is a problem with the printer head.</br> <br></br> <br><b>2. The printing is not clear and unreadable</b></br> <br>A. First, you can try to adjust the printing speed and printing density, increase the density, can improve the printing effect.</br> <br>The specific operation steps are as follows, open the printer device-printer preferences-adjust printer density/adjust printer speed.</br><br>