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Chris, thank you very much for this detail. I tried multiple time to install the p5370 with the InstallP5370=P900 before returning to this group to find what I was doing wrong. No problem at all once

Roy, Thank you. That worked!

Without column headings the program tries to guess what each column of data is. Its expecting "grayish" values for A and B ~ i.e. within -20 to +20, so misses calling it A and B. Just put a header

I just tried again using 51 Lab measurements (file attached), which is the same as I usually do. But again, QTR-Create-ICC RGB (version 2.7.9.0) produces what looks like a grayscale icc profile (out

I only used only 16 Lab values, which apparently isn't enough for an icc. I couldn't find any documentation regarding a minimum. [image: image.png] [email protected]> wrote:

Show us the Spyder output.

I use QTR-Create-ICC-RGB.exe to create icc's for soft proofing my alt process prints, and have been doing so for many years. After I do a calibration, I make a calibrated negative with a step table

I am ready to try this again. Thanks as always, Clay.

Thanks very much for the follow-up Clay.

From what I can tell, platen gap isn’t all that critical - the plates and carriers are well below that thickness - 1.1mm I think. I believe this is just there in case the media is curled slightly

Clay, 2.6 seems to be the max platen gap setting the 5370. Any thoughts on how to approximate your P900 DTP settings with this platen gap limitation?

Thanks Clay - really appreciate you sharing this info in an easy guide. Very useful! I don't have a P900 as yet, but I know it just around the corner! Silvi

Another PSA. I have wrestled with helping people set up their P900s for DTP use over the last couple of years. I think I have finally figured out a pretty solid workflow for getting this done. It has

Why do you think it is only laying down black inks? Do the negs look different from before? The color inks in the profile are minuscule and only there to make sure some ink is going down all the lines

Update: Thank you for all the suggestions. I've nuked, reinstalled, and checked permissions. All seems right to me. Alan, here is one of the quad files. This is a case of it worked fine before the

Attach the quad file please.

I agree that permissions is a likely suspect. By far the easiest and best way to repair permissions is to simply re-run the Install-QTR package. This automatically corrects all the permissions in

FWIW, when I run into stuff like this, I nuke (delete) all the .quad files for a particular printer in /Library/Printers/QTR/Quadtone and then do some spring cleaning in my installation folder to get

Did you check EVERY SINGLE folder in this order for read/write? /Library Printers QTR Quadtone quadP800-QTP or whatever you call it. Every single one. Last time I updated I had to read write every

Hi Chris, That was a glimmer of hope, as that is something I would have overlooked for sure. But, all the quads are "write & read". Anything else? Uninstall again? ~DM