Minolta Bizhub 350 or 450 has capability of producing 12.25 x 18 and duplexed. Also if you purchase the fiery RIP you can produce and control decent color, although by no means for color proofing. Hope this helps. Not totally sure of costs.
I Want to Invest in Inkjet, But…
Over the past few years I’ve watched a group of transactional and direct mail printers strategically shift from monochrome toner machines to full-color toner and inkjet presses. Most banished old black-only toner boxes but kept their color toner devices around because they anticipated needing both color inkjet and toner presses to meet customer needs. They were right then and continue to be right today. Because toner and inkjet can be better together.
Read the Post