I think it's almost enough to have a computer and a screen printer. After all, the profit is not high now and the competition is fierce. Of course, it is best to go to a color laser printer. Screen printing can meet all the business you said, but it can't print too beautiful patterns. Generally, it is best to print monochrome and multicolor with a low-grade screen printer. If the technology is not good, it will not overprint or look good. In addition, you can print clothes for others, which are worn by employees there.