Handheld inkjet printer, also known as portable inkjet printer, is portable and easy to operate. Handheld inkjet printer is different from small character inkjet printer, large character inkjet printer, high resolution inkjet printer and laser inkjet printer, which is suitable for enterprises that do not require high production speed. Jet printing products need a certain size, including solid fonts, dot matrix fonts, hollow fonts and colorful fonts, and can spray trademark patterns, Chinese and English fonts, numbers and barcodes. The jet printing height is generally around 1-54mm, and different types of inkjet printers are suitable for different materials.