The inkjet printing technology of the automatic inkjet printer is also called non-contact printing. Speed and print quality are the most critical considerations. Both CIJ technology and DOD technology are processes from a computer to paper-not a printing press; however, they have completely different roles in pushing ink onto paper.
According to the different working principles of inkjet printers, inkjet printers can be divided into the following two categories:
1: Continuous jet inkjet printer (continuous inkjet printer) referred to as CIJ type, also known as dot matrix inkjet printer (small character inkjet printer) continuous inkjet system is to continuously eject ink from a single nozzle through pressure After the crystal oscillates, it breaks to form ink dots; the ink dots are charged and high-voltage cracks are scanned on the surface of the moving object to form characters.
Large-scale industries have low imaging requirements and require high-speed packaging markets. Most industrial inkjet systems use CIJ technology. With this technique, the stream of ink droplets is produced in a linear fashion and an image is produced through a version.
The speed of industrial CIJ system can reach 1000 feet per minute, which is a little faster than DOD, but the image quality is also lower than that of DOD technology.
CIJ is the best solution for the numbering and marking of packaging and printing products for food, beverages, medicines and beauty.
Because the automatic inkjet printer ink jet is continuous, the continuous inkjet printer can use many types of ink, especially those inks that dry very quickly (within 1 second) after inkjet. Therefore, continuous inkjet coding technology is ideal for the printing of products with non-permeable surfaces (called cans and plastics) that need to be processed quickly after printing.
In addition, pigment inks with more vivid colors can be used
Two: On-demand inkjet printers (drop-on-demand) for short DOD type, also known as high-resolution inkjet printers.
The nozzle of the industrial on-demand ink supply system consists of multiple high-precision valves. When printing, the valve corresponding to the font opens and closes quickly, and the ink is ejected under constant pressure to form characters or graphics on the moving surface.
The latest DOD print head, the color is formed on the paper with a more precise collection of dots, which is similar to traditional offset printing. Therefore, the quality of four-color high-precision printing is an important signal, DOD is the most ideal choice, it can produce effects close to the quality of photography. The printing speed of DOD is between 100 to 300 feet per minute.
DOD uses include wide-format printing, packaging color icons, shopping point display boards, fabrics and large-format logos. The high-resolution inkjet printer has a diameter range of 1.0mm-70mm and can print dot matrix fonts (pinpoint), high-resolution fonts, and even print any font on the computer. The printing speed is not affected by the character dot matrix, and the acceleration can reach 120m/min. When the machine is running, the ink is jetted on demand, the ink is not recycled, and the ink density is consistent. There is no need to add substitutes (solvents), and the operating cost is lower than CIJ.
The ink is ejected directly, with its own pressure, no pressure pump or other equipment is required to provide pressure, and the failure rate is low. The control system is simple and reliable, operation is feasible and easy to maintain.
There are no high-power devices inside the machine, no heat dissipation is required when working, and the equipment system is well-closed and not affected by the working environment. The ink does not recycle, uses environmentally friendly ink, has no pungent odor, and has little environmental pollution.
Strong scalability, use the special control software for high-resolution inkjet printers to edit the printing content and control the inkjet printer through the Windows platform. The visualization of the operation makes the inkjet printer more powerful, and it also makes the user’s operation and use of the inkjet printer time changeable Is more interesting.
These advantages of automatic high-resolution inkjet printers are being paid attention to by the market, and sales will continue to grow.
