Does four-color printing have technical content?

I majored in printing equipment and technology in CDAD. There is not much difference between equipment specialty and printing technology specialty. But personally, I think mixing equipment is easier than printing technology.

I have also operated different printing presses in the factory. In fact, it is not difficult to open the printing machine. The hard part is debugging, maintenance and repair. The captain didn't just want to turn on the printing press. The machine is broken, as long as it is not a particularly serious problem, you must repair it. I suggest you go online and see if you can find out what the captain's duties are. When I was in college, we had a course devoted to the duties of a captain. Look, it's good.