Whats the best printer for a printing company?

You'll definitely want a high end Color laser Printer. Although a high end injet printer could do the job too. You'll probably want one that connects up via wireless N so you can print from many different workstations. Most office places like kinkos and office max use high end multifunction printers. I notice many of them have older models though. You will want a printer that has a sheet capacity of 800+ sheets too. Oh, and the only advantage the inkjet has over the color laser is cost of printing. With an inkjet you can use a continuos ink system. Personally, if I were doing this I would have dedicated systems. One for post cards, one for flyers, and another for business cards. The printers would all have 1000+ sheet capacities and be dedicated to specifically those task. I would have secondary printers installed alongside too for r redundancy. And I would have network storage and it all encrypted for return customers or repeat orders. Do not have to recreate anything that way and definitely high level encryption so data is private. I would have a high gain wireless N network too. The wireless on printers, even high end ones, tends to fail easily.

Agree with Charles, do some research. Visit other printing companies and network with printers to build a knowledge base of what equipment they use and what the printing volumes are for each piece. You might try to connect with a local print vendor group in your area. Someone may be willing to mentor you and help get you started. Yes, you might be competition but not always if you are serving a different niche market or looking to service small, one-off print orders. It's worth a try. Take a look at online print vendors as well and read the service offerings page to see if any equipment lists are included.

for high volume and sharp text you want a laser. for high res photos you want an inkjet. I have some of both. Here is an article comparing the two, with links to online deals and coupons http://ccs-digital.com/Best-printer-deals.asp

If it was me I'd go sniff around a company that does this sort of business . ask questions even better get some (cheap) work done then ask questions . Make a note of the brand of machines they are using