The easiest way the hand press could of been different if it had modern technology is if it was electronically powered like the machine linked below. There was no electricity and therefore it was impossible to have machines do work on their own without man power. This would have allowed for more books to be produced in a shorter amount of time and therefore more decemination of books at the pinnacle of their popularity.
Another way it would be different is the ads like the ones we saw on Tuesday in the books. They would be more like modern ads in magazines. The main difference is modern ads have color and they didn’t use to be able to do that.