Digital BW, The Print

In a previous note, John Swain stated:

<I am using 
<- Mac OSX 
<- Epson Print Driver
<- Roark NCA Curves
<-- MIS UT Inks

<My workflow is now:

<- Convert to 8 bit
<- Adjust levels in Adjustment Layers
<- Flatten
<- Unsharp mask
<- Apply Roark Curves 
<- Print

<This is producing the best prints I have ever made,

So my question is this...  where can one find the Roark curves, and 
after finding them how does one apply them during the printing 
process?  thanks for any help here....

Don