Re: Epson Pro3880 with troubled Photo Black ( PK ) for Piezography
2015-03-04 by brian_downunda@...
There are some aspects of those numbers that puzzle me.
1. The WN Opaque 1 number seems very low, and not consistent with my own results. I just printed a series (row) of patches of 100% density of this ink in calibration mode and took a series of 14 measurements and dmax varied from 1.595 to 1.610, with an average of 1.605 (before drying - can't access the hairdryer right now - so this might improve in the morning). Is there perhaps a typo in your numbers or is this WN result of 1.409 an aberration?
2. What's the difference between Selenium Shade 1, which is neutral, and Neutral Shade 1? I assume you mean glossy neutral and matte neutral. Is that right?
3. Are these numbers posted anywhere on the IJM site?