The epson 1400 will work (that's what I use), but you need a RIP software to go with it. RIP software is what converts the different shades to halftones, and talks to your printer. I use Accurip from silkscreening supplies, but there are a lot of different ones. I believe there is a GhostRip program that is free or shareware.
There are a few threads on hear of printing halftones without a RIP. I've never used that method, but I know some people are successful with it. Do a search on half tones with photoshop.