Digital BW, The Print

----- Original Message -----
From: "Paul Roark" <paul.roark@...>

> With the hextone machines, the Epson driver does not
> work at all because the FS and Piezo cyan & photo (light) cyan
> are the same density -- likewise for the magenta
> & photo magenta.  MIS now has what they call the FS-"E"
> series that is geared to the Epson driver, but I'm
> not sure anyone has developed workflows for the inks.

I am using the FS-N "E" in my 1200 and can say it works great for
high-contrast, busy images.

But on portraits I see mild posterization.

I am no expert, but I am thinking that the density of the replacement ink
must match the Epson OEM color ink for this to work with the native Epson
driver. For example, say the hex-black cyan is a tad less dense than the
Epson cyan, and the hex-black photo-cyan is a tad more dense than its OEM
counterpart. Then the transition in the Epson driver between these tones
will not work, producing a flat spot where the inks mix that no amount of
RGB curve tweaking can cure. And only one of the inks needs be off to
produce this problem (this is my fuzzy logic here, though I state it like an
accepted pardigm).

Also disturbing are the reports I have seen of users seeing posterization
with the Piezography driver. Even a dedicated partitioning solution has
problems?

-BK
who is wondering what to try next