I’m doing a project with a user who has an Epson P9000 and has been using QCDN for making digital negatives. We would like to be able to use PPE with a QCDN starting curve for reasons I explain in the next paragraph. We loaded the curve into the PPE STARTING CURVE tab and inverted it so it looks like a PiezoDN curve. I’m wondering if trouble is ahead if we proceed with limiting and linearization.
We want to use PPE rather than QCDN because only PPE has the TARGET-MEASUREMENTS feature. We linearize by matching measured transmission densities against target transmission densities. That way, we only need to make negatives (no prints), so linearization takes much less time and converges quickly. We have used this method to make calibrated digital negatives in the past, but then we started with a Piezography printer and a PiezoDN quad.
If you are using Piezography inks with a QCDN curve it should be able to be used in PPETv2 in the same way a Piezography starter curve is used unless the structure of the curve is too unusual.
We do not support the use of EPSON inks with Piezography software.
The Piezography inks & software form a system. That doesn’t mean you can’t try and accomplish your project with your user. It just limits my ability to be useful to you. Perhaps other users in this forum have transitioned to EPSON color inks and still use PPET.