[songyikun]

目前用的是sc—p7080，原装墨水和纸张，打印头一年一个，有点受不了。

[aamirift1]

Most companies are still using Epson Surecolor P7,000 series.
In terms of colour consistency it is good and strongly recommended.
Have you considered a maintenance contract for extended warranty. This way the cost of replacement / can be less if you think you are going to run into problems every year or so. In USA Epson offers extended warranties which can save you an absolute fortune in the long run.