This morning the head teacher asked me to print a document that needs color printing, but I myself am not very skilled in the company’s uv printer, only simple black and white copy and printing, color printing words I really do not know how to start. I’ve searched the Internet for a lot of information about how to use uv printer, but I still can’t follow the steps myself and finally get a colleague to help me with it. It seems that the theory is still a bit far from time, especially for my mechanized operation. It was so hard that I didn’t even know how to print and copy before I was working.