Our 4000 has only been on site for a few months, so I’m not a good source for the long term ink consumption question. We have run our remaining stock of the now-discontinued Breathing Color Vibrance Baryta, 17”, 24” and 44” rolls through the machine. That paper, at 345 weight, was famous for heavy curl, difficult handling, and head strikes on a range of machines. I’ll say that we’ve had no problems on the 4000 with the BC paper. I did build a Custom Paper preset for that paper with wide platen gap, and reduced drying time between head passes. A custom ICC was also made of course.
Some of this may help you. I have no regrets in choosing the 4000. For my work, the 2nd roll accessory has alone been very valuable.
John-
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