Can print on uneven surfaces, more flexible printing, protruding nozzles, can print in a narrower space Flat printing, with detachable module, can provide 2 auxiliary roller support, printing more smoothly Ink cartridge nozzle protective cover, no need to take out the ink cartridge after stopping printing, you can use the protective cover directly to prevent part of the ink in the nozzle from solidifying and blocking the nozzle. The storage position of the protective cover prevents the loss of the protective cover, and it is easy to use at any time. Application text, date, picture, code, variable code, counter, form can be printed.