The difference between CIJ and DOD（Drop on Demand）

CIJ (Continuous Inkjet) and DOD (Drop-on-Demand) are two different technologies used in inkjet printing. 

Continuous Inkjet (CIJ) technology is the most common type of inkjet printing technology. It involves the use of a high-pressure pump to force ink through a nozzle to form droplets. The droplets are then charged and deflected by electrodes to form an image on the printing surface. CIJ is known for its ability to print high-quality images at high speed, and it is widely used in industries such as packaging, labeling, and coding.

Drop-on-Demand (DOD) technology is a type of inkjet printing technology that only releases ink droplets when necessary. DOD printers create droplets by using a piezoelectric crystal to create pressure that forces ink droplets out of the nozzle. This technology is used in a variety of applications, including printing on textiles, ceramics, and glass. DOD printers are known for their ability to print on a variety of surfaces and their precise control over droplet size and placement.

In summary, CIJ technology uses a continuous flow of ink to create droplets, while DOD technology releases droplets only when needed. Both technologies have their own advantages and are used in different applications depending on their specific features and capabilities.