Epson Stylus Pro 4000 changing ink to dye

Well, I think the document which told you how to change the inks to dyes must have been lost by now, over 5 years old. So I reconed the basics were to drain the system of inks and then load in the dyes. Found a "Field Repair Guide" for the Epson Stylus Pro 4000. On page 208 it tells how to drain ink (no draining cartridge required - unlike the stylus pro 7600). It also tells of how to get to the service mode (hold down < > and down and switch machine on.

Works like a dream!