How long should I let printer targets dry before reading them to create profiles?
Short answer from Lou Dina: Matte Papers using matte black ink ~ 24 hours minimum. Photo Papers using gloss black ink ~ 8 hours minimum (preferably 12 hours). Short answer from Valdas: I usually waiting 24 hours for all papers at least. Measurements after a few days I still get color changes of about 0.1-0.3 delta E compared with measurements after 24 hours. Long answer (original research by Lou Dina): I did some testing to see how long it takes Canon inks (iPF6100) to cure and become stable. I did this mainly to help me decide how long to wait before reading test targets for profiling. I chose a smooth matte fine art paper, and also a luster photo paper, since they behave differently and use a different black inks. I used an Eye One Pro UV spectrophotometer and read numerous patches over a period of time. 1. Matte Fine Art Paper (matte black ink)- it takes awhile for inks to cure on matte papers, but the good news is that they continue to darken for better Dmax over time. This is a go
