To complete the two-dimensional code inkjet printer to print a two-dimensional code, any printer can be completed, of course, depends on what you are used up. If a general printing, advertising or product publicity, on the choice of ordinary printer or inkjet machine, but I think it should not be used in it. If it is used for bulk data can be read bar code label printing, you should choose a bar code printer. As for the brand, many, ZEBRA Zebra, TEC Toshiba, POSTK Kripas are all good brands. But if you want to choose cost-effective, personal recommendations choose Kripas word, if the two-dimensional code as photo printing, any printer can play; If character information will be sent directly to the printer, the printer generates two-dimensional code and print, which the need for specialized bar code printers. Maybe there are a lot of people ask, two-dimensional code requires specialized printer to print? Ordinary inkjet and laser machines have been tried, can be printed. But I have not tried needle, I guess it will do. Alternatively, some will ask the software used to generate two-dimensional code which is good, how online search a lot of it? Those two-dimensional code software produced can be printed it? Printed can identify it? We have no point of some of the more specialized software to introduce it? There are two-dimensional code printer has no demands? Scanner there is no requirement to buy it? A two-dimensional code generation makes no difference, but still better selection of well-known companies, so that was added to the virus, optional wing yards, two snapshots, the basic two-dimensional code is generated online bitmap printing is not possible lack of precision vector , but you can make the design of the printing process on the line art super-simple three, you're scanning gun, in fact, pos machine, of course, there epos. In fact, this should be bought with your back office systems together, Which you use an electronic voucher system, use Which pos machine just fine. Inkjet printers can be divided according to the principle of two solid and liquid inkjet ink jet (now again the latter is more common), and the liquid-jet method can be divided into bubble (canon and hp) and liquid piezo ( epson). Bubble Technology (bubble jet) through the heated nozzle, the ink bubbles, is sprayed onto the printing medium. DPI resolution is an important standard industry measure of print quality. It manifests itself in every inch of the range of printable inkjet printer dots. The higher the dpi when printing monochrome print better. The situation is more complicated when color printing. Print quality is generally good or bad to be affected by both value and color harmony dpi capability. Because black and white print resolution color inkjet printers generally print resolution and color may vary, so be sure to pay attention to when choosing to see the resolution of the business to tell you what kind of resolution, whether it is the highest resolution. Generally at least 360DPI above should be selected in the inkjet printer. The ability to use color harmony color inkjet printer users, the ability to reconcile color printer is a very important indicator. The traditional inkjet printers, when printing color photographs, color transition if encountered, will choose a combination of close combination of three basic colors in print, even with black, this combination is generally not more than 16 kind of expression Levels are unsatisfactory. To solve this problem, early inkjet printer also uses a spray-point density adjustment method to express the degree of gradation. But for the time about the color resolution is only 300dpi products, adjust the density level of the result is very poor in transition color, looks have a lot of spots. Color inkjet printer, on the one hand by increasing the print density (resolution) to make the print out of the dot thinning, so that the figure becomes more delicate; the other hand, have improved technology in terms of color harmony, common are: increase number of colors, change the spray droplet size, reducing the basic color ink cartridges concentration in several ways. Increasing the number of colors which come most effective. Usually using colored color cartridges, plus the original black ink cartridge, the formation of the so-called six-color printing. As a number of color combinations permutations and combinations to get the suddenly increased several times, the effect is very obvious to improve natural. Principle of spray droplet size change is needed in printing where high color density standard-size ink droplets, while requiring lower concentrations of local color spray ink droplets, also achieved more Levels . And in fact, reduce the concentration of the cartridge color inkjet method by repeated high color density in place to form more Levels.