How many people are traveling with you? Shuttles charge per person. A car service is a more expensive flat rate, and Uber/Lyft is a less expensive flat rate. We are a family of four, and I looked into all three. It doesn't make sense to do shuttle for us. If I wanted to spend $100 r/t, I'd go with car service. I'm accustomed to using Uber, though, so I'll probably go with that. (For the record, I also had a terrible experience with Magic Express a couple of years ago that totally turned me off of shuttles. We waited in line at MCO for almost an hour after retrieving our bags. Even with Magic Express being "free," I'd never do that again!)
Just out of curiosity, why would you need to print at the airport? Just print at home when you're not in a rush (or print at a Staples or FedEx Kinkos near your home). That being said, if you google "print orlando airport," there is some information about the business center located in an attached hotel. It's only open until 5 pm, though, and I wasn't able to find information about cost.