What is it that offset presses don't code unless they are tricky?

The nozzle is blocked, the remaining amount of consumables is insufficient, and the distance between the nozzle and the surface of the object is not appropriate.

1. Nozzle blockage: according to the display of the inquiry packaging and printing industry network, check whether there are foreign objects or impurities in the mouth and the machine, clean it up and try again.

2. Insufficient consumables: Check whether the consumables are sufficient and replace them.

3. The distance between the nozzle and the surface of the article is inappropriate: adjust the distance between the nozzle and the surface of the article.