Digital BW, The Print

I can't say much about most of your post, but for inks for the R1800
I'd look at Epson K3 Yellow over R1800 yellow for convenience, cost,
and improved longevity over the image specialists product (according
to the Aardenburg tests).  

I use this with my R1800 and it works well.  You could probably do the
same with magenta and also get it from large format Epson carts (like
9800 carts).

Roger



--- In DigitalBlackandWhiteThePrint@...m, "Bob Marsolais"
<bob@...> wrote:
>
> Paul,
> 
> I've started a project designing a UT2-like inkset for the 
> R1800/R1900.  The UT2 inkset you designed for the 1280 was fun to use 
> and I miss its flexibility.  I've read through all the applicable 
> white papers on your website and have some questions.  Thanks in 
> advance for your help and all you contribute to this forum.
> 
> For now, I'm switching color and BW inks back and forth in the same 
> printer.  Each inkset stays in the printer for at least a month or 
> more and I may go to a dedicated printer in the future as budget 
> allows.  I use MIS or IS for all inks, there are no OEM used inks in 
> the printer.  I'm using QTR and have cut-and-pasted from the 3MK 
> profiles you generated as the starting point.  I have also found a 
> source of totally spongeless carts, so EB-6 inks are an option.
> 
> My configuration at this time (subject to change) is 3-MK, 2-PK, GO, 
> R1800 blue (which is really purple), and a sepia slot.  I started 
> with the R1800 red as the sepia ink as you suggested, but it wasn't 
> what I was looking for.  After making color samples of all the inks I 
> have, the UT2 sepia (yellow position) was the closest ink to what I 
> want.  This is based on comparing the color samples to some old (late 
> 1800's and early 1900's) family photos.  However wanting the most fad 
> resistant inks, I thought there may be a better way to make that 
> ink.  I was thinking of mixing some MK, R1800 yellow and maybe some 
> R1800 magenta.  Would these be good choices from a permanence 
> viewpoint?  Is there a ratio you'd recommend as a starting point to 
> match the UT2 sepia?  Also, would MIS UC-base be good for dilution?  
> If not, what would you recommend?
> 
> I am going to look into a LK position as well.  How does one part MK 
> to four parts base sound?  In the future, I will probably also try 
> R1800 cyan in place of the blue (purple).
> 
> I know I'm covering a lot of ground here, so thanks for your patience 
> with this student of yours!
> 
> Bob
>