I was using Epson Cold Press Bright inkjet paper in my Canon ipf5000 printer until I noticed that solid color areas (for instance a blue sky or a solid black filled area) were blotchy looking. The blotches seem to be caused by the paper absorbing the ink differently - they appear randomly so it's not something stuck on my printhead or anything. I thought at first that it would level out after the prints dried, but leaving them to dry for several days made no difference. This is not noticeable in areas where there is lots of detail (rocks, tree leaves, etc) but unfortunately my work has lots of solid colors areas in it. It was not a defective roll of paper either, it showed up using different rolls over the course of several months of printing.
So I'm looking for suggestions for a paper similar in weight, brightness and texture to the Cold Press Bright that won't blotch. I need a very high quality, heavy weight, bright white paper with a nice texture for printing fine art painting reproductions on.