While profiling a QSS-3801 HD we noticed, that the the resulting black is a bit brighter than the black on calibration strip. The native black point measured from calibration strip on both Kodak Endura Supra Premier and Fuji Crystal Archive DP2 was ~L* 4, while on a print there's only ~L* 5,7-6, with or without applied profile.
I remember that Scott Martin mentioned about Noritsu's RGB GCR, but there's no trace of halo on the edge of black from calibration strip, so it looks like RGB GCR is alredy applied there (On QSS-3201 print from Noritsu printer driver, where RGB GCR is switched off the halo is easily visible).
Does anyone know if there's a way to achieve deeper black in that printer? Noritsu service technician didn't have a clue WTF we were talking about (as I expected), so he wasn't much help.