How long does it take to learn Roland 800 printing machine?

More than two years. Generally, it takes at least 2 years to learn Roland 800 printing machine. Generally, learning printing begins with an apprentice, then goes to an assistant, and finally becomes a captain. This is a learning process. Germany Roland 800 four-color printing, printing format 1400x 1000, specializing in the production of large packaging boxes, posters and other printed matter.