Yes, I know the P800 inkset is different. The curves look quite different to me so I'm not sure how you'd go using those inks and curves in the 7890.
I've had some success in curve blending, but only in limited circumstances. I have added a bit of cool to neutral to make it closer to genuine neutral. I've also played with trying to replicate Piezo Special edition. I love this inkset on matte, but it's too warm on gloss, so I've tried to roughly replicate the matte look on gloss using OEM. I've also to tried to replicate the selenium inkset based on a custom selenium QTR curve, but with only partial success so far. Trying to mix cool and warm to get neutral may be a touch optimistic. BTW, warm curves usually have no toning inks, so the warmth in those curves is usually just the native warmth of the black inks, so you may get lucky by adding in some of the cool curve in a blend.
QTR-OEM printing on recent generation printers is surprisingly good. In the sizes I print it can be hard to see the improvement in K6 in most images. Needless to say, this is not a comment that one makes on the IJM forum.
---In QuadtoneRIP@yahoogroups.com, <deanwork2003@...> wrote :
Thanks Brian,
I will be looking at the Platine this weekend.
Actually the qtr driver for the 7890 does not have neutral curves, ( does the 3880? ) it has cool, warm, sepia, and selenium. That is why I was wondering if anyone had made one . The selenium on the matte media was of no use, even when blended. The cool really cold and the warm not good on Canson Rag Photo, but of course one could create one. The best I got was one curve warm and one cool. still a little cool. But this is on the matte rag. photo rag curves, I will try this combination blend on the Platine with the Ilford curves. That is what we used on the P800 that was so good I think.
What I was wondering is if you could use the three curves to do something or stick with just two. Like I said it's been about 15 years since I did any bw with epson inks and so the quality of the p800 with QTR really surprised me.
By the way the inkset is different on the P800, as with all the new sure color printers, it has the new yellow and the new blacks which give it more dynamic range. However, with my two printers I see no reason why one couldn't add the new blacks and the yellow with refillable carts and relineraize and reprofile.
john