Advice and suggestiongs on two sided impo proofing December 13, 2017, 09:07:46 AM We are looking at replacing out Epson Stylus Pro 9900 that we use for our IMPO book proofer, which we load cut sheets into to mimic the press sheets. It's getting old , and lines ( which we all know means a new head at this point, too many cleanings and still not fixed ). It's been out of warranty for almost 3 years, so time for a new one. But since workload has increased so much, it's finally time to look at the two sided options. A couple we've heard of are DJet, and IMPOProofer. Any info would be greatly appreciated.