I have been replacing the original cartridges in my Epson 3880, as they are used up, with refillable Cone color ones, but when a new photo black cartridge was installed and a gray scale test run, I found that the Dmax was much lower than what the Epson cartridge gave:
Epson photo black: Dmax 2.3 (L4.5)
Cone photo black: Dmax1.8 (L12.5)
Is this normal? The difference is quite noticeable.
I’m using QUAD tone instead of ABW. All colors except yellow are now Cone inks. The new cartridge installation has been faultless.
Paper is Epson Premium Luster.