Can you tell me which digital proofing machines are used by printing professionals nowadays? Used for digital proofing, pre-press proofing, printing proofing, there is a fast speed?

I and you say, pre-press proofing, generally now go to the fast printing store to print, large fast printing store inside the equipment are very expensive, there are Xie Ming machine, such as Xerox 8000, love will be the series, hp indigo series, Komei machine, Canon machine, which Xerox and hp machine are in the more than 2 million, some of the machine and the printing press is about the same price.