Old 07-16-2008, 12:26 PM   #1
SWCL
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Join Date: Feb 2008
Posts: 57
Printer: Mimaki JV3 160s,Epson 9600 Ultrachrome,HP5000(DYE)
Question Onyx/Epson VarDot profile

I'm starting to create profiles for the Rip (finally) using the knowledge gained from the threads on here & the training workshop I attended.

I've managed to create a profile for our JV3 160s Ultra, using Inktec inks & on DigiSol 5000 5-7yr vinyl.. We were using a profile for some Oce media which gave 'OK' results (compared to the god awful stuff that was coming off using the ancient v.5.6 profile!) - but for reasons unknown, having only changed the capping station.. it started over inking everything I printed?

So I was forced to try profiling & didn't do a bad job, for a newbie - Media ****yzer says Spot Colour accuracy is 75.9% for my profile compared to 57.5% for the Oce media - however we fail to hit colours like Pantone Yellow & Red 032 which is important to us, but thats another story..

I'm trying to create one for the Espon 9600, which at the moment only has Epson profiles on it.. but we use NO epson media! - Canvas is passable with some colour tweaks in RIP but is obviously not ideal.

I'm getting stuck at the first hurdle though.. choosing the Dot size.

I see I can select different dot sizes for C M Y & K - this confuses me somewhat as I cant work out what will happen to the 2 colour combo's (R G B) - can't get my head round it more than anything & am in need of some reasurance I think.

Is there a way of determining which setting is best using the eye one? as during that part of the profiling workflow you can access the eye one measurement tool.. or do you just visually check which dot setting gives you best coverage/least artifacting per channel & do it that way?

The var dot patches I have printed off, the -10 line has great coverage on the RGB, but really weak CMYK. The +2 line is much better for CMYK, but the RGB patches run into each other badly.

Also the media I'm trying to profile (Inktec Matte Photo Paper) has a golden sheen to it, but seems to react to too much ink? When the ink coverage is within limits the golden sheen can be seen over the whole print, but it seems when it is too much the area of heavy ink lays on top of the surface..

I will try to upload a picture so that you have more of an idea of what I'm trying to describe.

Chris.
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