QTR-Quadtone RIP

Is the non-white portion, yellow or gray ? If it's yellow, you need to maintain a slightly acidic pH. Some people go directly from developer to (Citric) acid, to avoid having the Ferric Oxalate stuck permanently in the print.  

--- In QuadtoneRIP@yahoogroups.com, Alan Vlach <alanvlach@...> wrote:
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> There is no reason you shouldn't have gotten a paper white for Pt/Pd on the ink separation page. There should have been a lot of pure white squares for the black and probably yellow inks. You may be having a clearing  or fogging issue.
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> On Jan 31, 2012, at 10:51 AM, laanyc wrote:
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> > Hi all, I am new to QTR, using it to make digital negatives. I am running CS5 on a MAC, I have installed the Adobe workaround for color management, http://kb2.adobe.com/cps/834/cpsid_83497.html, and printing to a 3880. Following Clay's wonderful PDF, I printed out the ink separation TIFF and made a pt/pd print. The whites are not perfect paper white, but I am thinking that may get taken care of later in the process (ASSumption??). It occurred to me this morning that I don't recall ever seeing an option for whether to use the photo black ink or the matte ink - or even how that would be done. I ran across something on Ron Reeder's site (have the book, but must have missed seeing this issue in my reading) that said to use matte ink. Does the difference between these inks matter much? I will print out an ink separation page using the matte ink and test, but wondering what others have experienced? thank you....lyle 
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