CIJ printer prints by spraying ink in dots. The dots of ink are composed of the words and numbers we see in common. The printed object passes by the bottom of the printer at a constant rate while spray printing. As a result, the dot-like configuration uniformly distributed on the printed object. This is called straight-line coding which means the identifiers are shown in straight line similar to the line or line segment. 

       As we know we should keep a certain distance in equal length between the sprayer and the printed object to print the identifiers. Thus, it will print the fine identifiers. Modern products are in variety of forms which also brings various shapes of packaging. So, it is rarely seen in many industries for such most idea printing.  

      One of the packaging we have often seen is rounded packaging. Relatively speaking, it is harder to print for the traditional coding machine. We may realize the perfect printing on the rounded packaging only against one auxiliary device. As we know, printer could beequipped with fully external devices. For the rounded packaging, we need the rotating device.

      We will achieve our ideal printing through introducing this rotating device in the rounded packaging. It is beneficial to the application of the CIJ printers. Therefore, in more and more industries it proves that the fine identifiers will be created by connecting the external device with the printer.