A general comment on repurposing old 24" or larger Epson printers to use B&W inksets -
By replacing dampers and running Eb base through the head of my badly clogged 7600 (hadn't been used in many years), plus some gentle Windex syringe flushing, I was able to get it back up and running beautifully. If folks see old long-out-of-use printers cheap or free on local classifieds, give it a shot - you could get a top notch archival large format printer running for little $$$'s...