1. First, confirm whether the printer is online. On most printers, there is a small light next to the Online button to indicate the online status. Under normal circumstances, the online indicator should always be on.

2. Check whether the printer has been set as the default printer.

3. Check whether the current printer is set to suspend printing.

4. Type a few lines of text in Notepad or WordPad, and then click Print on the File menu.

5. Check whether the printer driver is damaged.

Precautions for using the printer:

1. Be careful not to put anything on the printer: when the printer works, it will generate heat, which can be dissipated through the casing. If you put a lot of things on the printer, the heat will not be emitted normally, and it is easy to smoke and smell.

2. Pay attention to grounding measures: when using the printer, choose the appropriate power supply and pay attention to grounding protection measures. Please unplug the printer when you don't use it for a long time. In addition, if it is a thunderstorm, pay attention to unplug the power supply to avoid lightning damage to the printer.

3. Be careful not to move the printer when printing: If the printer is in printing state, don't move, drag the printer and cut off the power supply of the printer, and don't touch the metal parts of the printing cable connector and the print head with your hands, because these parts are very hot when printing, and it is easy to burn if you touch them with your hands.

Heart of the King 2 Click on the demo.