Single tag inkjet printer adopts high-precision 600dpi UV print head, long service life, easy to maintain the print head, print position accurate operation of simple and convenient layout software, can quickly and accurately edit the variable information database, support for a variety of barcodes and two-dimensional code, suitable for single sheet of paper, coated paper products for printing, powerful and flexible with the function module can be added according to the needs of optional additions. Powerful and flexible matching, function modules can be added according to the needs of optional, the use of the Chuang Sai Jie independent invention patent - intelligent negative pressure ink supply system, the system can accurately control the stability of the negative pressure and printing accuracy, improve production capacity, reduce printing costs, applicable to clothing tags, card labels, signs and other printing industries.