>
> Hi and thank you guys so much for replay. Shilesh that's exactly what I
> needed as far as white ink. Is there something I have to do with gray ,
> tonner and tonner 2 tabs? Right now I have setup for gray tab: highlight 10,
> shadow 10, overlap 100 and gamma 1. Tonner and tonner 2 settings are
> highlight 10, shadow 10 and gamma 1?
>
> Walker Blackwell I would really appreciate if you can explain a little
> simpler since I am still not that handy with QTR. If this would work I will
> be more than happy to send you guys some T-shirts J
>
> Best regards
>
> Bo
>
>
>
> From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of shileshjani
> Sent: Sunday, January 24, 2010 12:23 AM
> To: QuadtoneRIP@yahoogroups.com
> Subject: [QuadtoneRIP] Re: Need help please!!!!
>
>
>
>
>
> OK. Let's break this into two parts; I am surmising from Bo's initial
> message that he intends to print with two passes (1) pure white with as much
> ink as he can lay down, and (2) CMYK color image.
>
> (1) with QTR is easy enough. If you dedicate Lb (more commonly called LK),
> LC, and LM with white ink, and want to fire them at 100% each. Here is what
> I would do. Create a curve setup file (qidf) with LK as gray, 100% density,
> 100% ink limit. Then setup LM, and LC as "copy curve from LK". Create the
> profile. No need to linearize. Now when you print a pure black image through
> QTR with this curve, you will be laying down the white ink in LK, LM, and LC
> each at 100% ink limits (total 300% white).
>
> (2) As far as I know, there is no way to do the color print from QTR. But, I
> am eager to learn (although have no real use for it). A more full-featured
> RIP can certainly allow you to build profiles that utilize only CMYK.
>
> Shilesh
>
> --- In QuadtoneRIP@yahoogroups.com <mailto:QuadtoneRIP%40yahoogroups.com> ,
> Walker Blackwell <forums@> wrote:
> >
> > Why wouldn't this work with QTR? Simply take a default environment
> > that uses K and LK (use two white inks-with similar density relation
> > to the Ks in Epson K2-instead of two black inks if possible, not three
> > white inks.) Then invert the 21 step linearization target and print.
> > Then you'll have to somehow invert the density values of each swatch
> > read against the central mean line between Darkest and Lightest patch
> > before you build the linearization for the white underbase profile.
> > You can batch this with a formula in Excel. *I can't quite get my head
> > around it until I would be sitting down and doing it, but this is a
> > starting point at least.
> >
> > This will give you a linearized white environment. Then take the third
> > channel you were going to use for White and put nothing in it, an
> > empty cartridge (You will then tell your software that this is your K
> > channel even though it isn't printing anything). Then you simply build
> > a profile by printing a color swatch from Gutenprint using straight
> > CMYK (Lc Lm can probably not be there just fine). This gives you one
> > more channel to play with in case you ruin a channel with weird ink.
> > Just build a 300 patch profile (at max!) or so for the CMYK. Nothing
> > fancy. It will get very tricky to build the tables for the K vs CMY
> > on this ICC because they will be printed from different programs . . .
> > But, you should be able to apply the K part of the CMYK icc to the
> > white print and the CMY parts to the color print easy enough . . .
> > Will take a bit of tinkering I'm sure.
> >
> > Should be good to go after this. Happy hacking,
> > Walker
> >
> >
> >
> > On Jan 23, 2010, at 4:26 PM, spopoviccacak wrote:
> >
> > > I was wondering if any of you guys can help me. I had question in
> > > the past and this board was more than helpfull. I have epson 2200
> > > printer that I have converted to flat bad printer. It works great
> > > and if anybody needs info I can help you with it. I am planing to
> > > use it for printing on T-shirts. Only problem I have is printing on
> > > dark shirts. I can use QTR and setup LB, Lm and Lc chanels to print
> > > white underbase. I have setup curves Lb 100% ink limit gray ink, Lm
> > > 100% ink limit tonner and Lc 100% ink limit tonner2. Since I like to
> > > put as much ink as possible on the shirt should I setup Lc and Lm
> > > also to be gray ink or live it tonner and tonner2?
> > > Most important question is: Since i would be using Lb, Lc and Lm for
> > > white ink is there any way I can have my CMYK chanels to print image
> > > without Lb, Lc and Lm. I know there are rip softwares out there but
> > > they are so expensive. Is it posible to create profile for epson
> > > 2200 that only uses CMYK channels for color images and profile for
> > > Lb, Lc and Lm so I can for example use photoshop to print white
> > > underbase and than switch profile and print color image on top of
> > > underbase. I am searching for almost two months with no sucess to
> > > either find some free rip software to do this or driver. If you guys
> > > have any sugestions please help me.
> > > Best regards
> > > Bo
> > >
> > >
> > >
> >
> > Walker Blackwell
> > 802.821.4451
> > www.walkerblackwell.com
> > aim: greendirtblues
> > wblackwell@
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
> [Non-text portions of this message have been removed]
>