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2011-03-11 by Lester
Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running Mac OS 10.4.11), followed the tutorial, printed my image from Photoshop and got a a two color image (plus black and white)? What did I do wrong? Image was grayscale in Photoshop?
2011-03-11 by Roy Harrington
Hi Lester, The curves that you select when printing must be specifically designed for the inks you have loaded in the printer. It sounds like you used curves for a different ink than is in the printer. Roy
On Thu, Mar 10, 2011 at 7:22 PM, Lester <les@...> wrote: > Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running Mac OS 10.4.11), followed the tutorial, printed my image from Photoshop and got a a two color image (plus black and white)? What did I do wrong? Image was grayscale in Photoshop? > > > > ------------------------------------ > > Yahoo! Groups Links > > > >
2011-03-11 by Les Kanekuni
>Roy I chose R200 Neutral gray. 2 QT print attempts, 2 different color results (for a grayscale image). First one, purple and yellow, second one magenta/orange. Don't get it. Thanks, Les > > >Hi Lester, > >The curves that you select when printing must be specifically designed >for the inks >you have loaded in the printer. It sounds like you used curves for a >different ink >than is in the printer. > >Roy > >On Thu, Mar 10, 2011 at 7:22 PM, Lester ><<mailto:les%40hipfish.net>les@...> wrote: >> Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running >>Mac OS 10.4.11), followed the tutorial, printed my image from >>Photoshop and got a a two color image (plus black and white)? What >>did I do wrong? Image was grayscale in Photoshop? >> >> >> >> ------------------------------------ >> >> Yahoo! Groups Links >> >> >> >> > > [Non-text portions of this message have been removed]
2011-03-11 by Lester
I used the R200 neutral curves. Don't know what happened. --- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@...> wrote:
> > Hi Lester, > > The curves that you select when printing must be specifically designed > for the inks > you have loaded in the printer. It sounds like you used curves for a > different ink > than is in the printer. > > Roy > > On Thu, Mar 10, 2011 at 7:22 PM, Lester <les@...> wrote: > > Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running Mac OS 10.4.11), followed the tutorial, printed my image from Photoshop and got a a two color image (plus black and white)? What did I do wrong? Image was grayscale in Photoshop? > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > > > >
2011-03-11 by Mike Finley
Which inks do you have in the printer? (Epson, or if third party, who?) I'm not familiar with the R200, but suspect that the standard Epson inks aren't suitable for use with QTR. What's the exact name for the QTR curves you used? On 11/03/2011 18:12, Lester wrote: > > I used the R200 neutral curves. Don't know what happened. > > --- In QuadtoneRIP@yahoogroups.com > <mailto:QuadtoneRIP%40yahoogroups.com>, Roy Harrington <roy@...> wrote: > > > > Hi Lester, > > > > The curves that you select when printing must be specifically designed > > for the inks > > you have loaded in the printer. It sounds like you used curves for a > > different ink > > than is in the printer. > > > > Roy > > > > On Thu, Mar 10, 2011 at 7:22 PM, Lester <les@...> wrote: > > > Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running > Mac OS 10.4.11), followed the tutorial, printed my image from > Photoshop and got a a two color image (plus black and white)? What > did I do wrong? Image was grayscale in Photoshop? > > > > > > > > > > -- mike finley photography fine art photography and website construction http://mypicks.efikim.co.uk http://www.mikefinley.co.uk [Non-text portions of this message have been removed]
2011-03-11 by Les Kanekuni
Epson. In Photoshop print window: Color Handling: Photoshop manages colors Printer Profile: QTR RGB Matte Paper Rendering Intent: Perceptual Black Point Compensation (checked) In Printer print window: Printer: QuadR300-GQ In Quad Tone RIP window: Mode: Quad Tone RIP Curve 1: R200 neutral When I went back to standard Epson and generic grayscale profile in Photoshop the output was fine -- no color. > > >Which inks do you have in the printer? (Epson, or if third party, who?) >I'm not familiar with the R200, but suspect that the standard Epson inks >aren't suitable for use with QTR. >What's the exact name for the QTR curves you used? > >On 11/03/2011 18:12, Lester wrote: >> >> I used the R200 neutral curves. Don't know what happened. >> >> --- In <mailto:QuadtoneRIP%40yahoogroups.com>QuadtoneRIP@yahoogroups.com >> <mailto:QuadtoneRIP%40yahoogroups.com>, Roy Harrington <roy@...> wrote: >> > >> > Hi Lester, >> > >> > The curves that you select when printing must be specifically designed >> > for the inks >> > you have loaded in the printer. It sounds like you used curves for a >> > different ink >> > than is in the printer. >> > >> > Roy >> > >> > On Thu, Mar 10, 2011 at 7:22 PM, Lester <les@...> wrote: >> > > Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running >> Mac OS 10.4.11), followed the tutorial, printed my image from >> Photoshop and got a a two color image (plus black and white)? What >> did I do wrong? Image was grayscale in Photoshop? >> > > >> > > >> > > >> > >-- >mike finley photography >fine art photography and website construction ><http://mypicks.efikim.co.uk>http://mypicks.efikim.co.uk ><http://www.mikefinley.co.uk>http://www.mikefinley.co.uk > >[Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed]
2011-03-11 by Lester
Epson. In Photoshop print window: Color Handling: Photoshop manages colors Printer Profile: QTR RGB Matte Paper Rendering Intent: Perceptual Black Point Compensation (checked) In Printer print window: Printer: QuadR300-GQ In Quad Tone RIP window: Mode: Quad Tone RIP Curve 1: R200 neutral When I went back to standard Epson and generic grayscale profile in Photoshop the output was fine -- no color. --- In QuadtoneRIP@yahoogroups.com, Mike Finley <mike.finley@...> wrote:
> > Which inks do you have in the printer? (Epson, or if third party, who?) > I'm not familiar with the R200, but suspect that the standard Epson inks > aren't suitable for use with QTR. > What's the exact name for the QTR curves you used? > > On 11/03/2011 18:12, Lester wrote: > > > > I used the R200 neutral curves. Don't know what happened. > > > > --- In QuadtoneRIP@yahoogroups.com > > <mailto:QuadtoneRIP%40yahoogroups.com>, Roy Harrington <roy@> wrote: > > > > > > Hi Lester, > > > > > > The curves that you select when printing must be specifically designed > > > for the inks > > > you have loaded in the printer. It sounds like you used curves for a > > > different ink > > > than is in the printer. > > > > > > Roy > > > > > > On Thu, Mar 10, 2011 at 7:22 PM, Lester <les@> wrote: > > > > Hi, I just downloaded and setup QTRip 2.6.2 (Epson R300, running > > Mac OS 10.4.11), followed the tutorial, printed my image from > > Photoshop and got a a two color image (plus black and white)? What > > did I do wrong? Image was grayscale in Photoshop? > > > > > > > > > > > > > > > > -- > mike finley photography > fine art photography and website construction > http://mypicks.efikim.co.uk > http://www.mikefinley.co.uk > > > > > [Non-text portions of this message have been removed] >
2011-03-11 by Mike Finley
I would guess from the 'Q' in the printer description, that its for a specific monochrome inkset (Q standing for Quadtone) where all inks are shades of grey. As you're using Epson inks it will be printing colour inks where it expects to have have a lighter shade of grey. 'G' will probably refer to an ink manufacturer. If you're using the Epson inks, unless someone else says different stick to the Epson driver. On 11/03/2011 20:20, Les Kanekuni wrote: > > Epson. > > In Photoshop print window: > Color Handling: Photoshop manages colors > Printer Profile: QTR RGB Matte Paper > Rendering Intent: Perceptual > Black Point Compensation (checked) > > In Printer print window: > > Printer: QuadR300-GQ > > In Quad Tone RIP window: > > Mode: Quad Tone RIP > > Curve 1: R200 neutral > > When I went back to standard Epson and generic grayscale profile in > Photoshop the output was fine -- no color. > > > > > > >Which inks do you have in the printer? (Epson, or if third party, who?) > >I'm not familiar with the R200, but suspect that the standard Epson inks > >aren't suitable for use with QTR. > >What's the exact name for the QTR curves you used? > > > > > > > >-- > >mike finley photography > >fine art photography and website construction > ><http://mypicks.efikim.co.uk>http://mypicks.efikim.co.uk > ><http://www.mikefinley.co.uk>http://www.mikefinley.co.uk > > > >[Non-text portions of this message have been removed] > > > > > > [Non-text portions of this message have been removed] > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.872 / Virus Database: 271.1.1/3500 - Release Date: 03/11/11 08:17:00 > -- mike finley photography fine art photography and website construction http://mypicks.efikim.co.uk http://www.mikefinley.co.uk [Non-text portions of this message have been removed]
2011-03-12 by shileshjani
I believe GQ was an quad inkset sold some years ago by Media Street. Shilesh --- In QuadtoneRIP@yahoogroups.com, Mike Finley <mike.finley@...> wrote:
> > I would guess from the 'Q' in the printer description, that its for a > specific monochrome inkset (Q standing for Quadtone) where all inks are > shades of grey. As you're using Epson inks it will be printing colour > inks where it expects to have have a lighter shade of grey. 'G' will > probably refer to an ink manufacturer. > > If you're using the Epson inks, unless someone else says different stick > to the Epson driver. > > On 11/03/2011 20:20, Les Kanekuni wrote: > > > > Epson. > > > > In Photoshop print window: > > Color Handling: Photoshop manages colors > > Printer Profile: QTR RGB Matte Paper > > Rendering Intent: Perceptual > > Black Point Compensation (checked) > > > > In Printer print window: > > > > Printer: QuadR300-GQ > > > > In Quad Tone RIP window: > > > > Mode: Quad Tone RIP > > > > Curve 1: R200 neutral > > > > When I went back to standard Epson and generic grayscale profile in > > Photoshop the output was fine -- no color. > > > > > > > > > > >Which inks do you have in the printer? (Epson, or if third party, who?) > > >I'm not familiar with the R200, but suspect that the standard Epson inks > > >aren't suitable for use with QTR. > > >What's the exact name for the QTR curves you used? > > > > > > > > > > > >-- > > >mike finley photography > > >fine art photography and website construction > > ><http://mypicks.efikim.co.uk>http://mypicks.efikim.co.uk > > ><http://www.mikefinley.co.uk>http://www.mikefinley.co.uk > > > > > >[Non-text portions of this message have been removed] > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > No virus found in this incoming message. > > Checked by AVG - www.avg.com > > Version: 9.0.872 / Virus Database: 271.1.1/3500 - Release Date: 03/11/11 08:17:00 > > > > -- > mike finley photography > fine art photography and website construction > http://mypicks.efikim.co.uk > http://www.mikefinley.co.uk > > > > > [Non-text portions of this message have been removed] >
2011-03-15 by Mike Finley
So far, I've not had to create new curves, just tweak existing ones for similar papers. Now I've switched to an Epson 3880 and it doesn't have many existing papers to start from, so I'm trying to figure out how to create my own curves, starting with a glossy paper (innova fibaprint white gloss). I've printed a 21 greyscale patch and read the Lab values, and am now not sure how to interpret them. L I'm not bothered about ... linearising should clean that up easily (its pretty good to start with) but am not sure how to interpret the a and b values: a starts from a low range of 0 to 0.4 (meandering) up to the 50% ink point, then rises steadily to 1.6 at 70% ink, and then to 1.8 at 90% ink. b varies up and down over a range of 1.5 to 2.4 (the paper white is 1.5). As there's not much of general progression, more meandering up and down, it seems I'll just have to take this as reasonable. Being partially colour blind, its not easy for me to judge the impact! - are these significant (this is supposed to be the neutral curve) or should I try to at least reduce the a ramp, by reducing the magenta content a little Thanks for any insight ... mike -- mike finley photography http://www.mikefinley.co.uk
2011-04-28 by Mike Finley
no-one? On 15/03/2011 18:22, Mike Finley wrote: > > So far, I've not had to create new curves, just tweak existing ones for > similar papers. Now I've switched to an Epson 3880 and it doesn't have > many existing papers to start from, so I'm trying to figure out how to > create my own curves, starting with a glossy paper (innova fibaprint > white gloss). > I've printed a 21 greyscale patch and read the Lab values, and am now > not sure how to interpret them. > > L I'm not bothered about ... linearising should clean that up easily > (its pretty good to start with) but am not sure how to interpret the a > and b values: > > a starts from a low range of 0 to 0.4 (meandering) up to the 50% ink > point, then rises steadily to 1.6 at 70% ink, and then to 1.8 at 90% ink. > b varies up and down over a range of 1.5 to 2.4 (the paper white is > 1.5). As there's not much of general progression, more meandering up and > down, it seems I'll just have to take this as reasonable. > > Being partially colour blind, its not easy for me to judge the impact! - > are these significant (this is supposed to be the neutral curve) or > should I try to at least reduce the a ramp, by reducing the magenta > content a little > > Thanks for any insight ... > > mike > > -- > mike finley photography > http://www.mikefinley.co.uk > > [Non-text portions of this message have been removed]
2011-04-28 by Michael King
Mike, I think the issue is that to some a change in "a" or "b" of say 1.4 is not noticeable and to others it is. Also we are more sensitive in midtones and less in shadows. It's all very subjective. As a guideline I would have a look at what Paul Roark is achieving in terms of a,b values for b&w and what he finds acceptable. www.paulroark.com Mike On 28 April 2011 17:30, Mike Finley <mike.finley@...> wrote: > > > no-one? > > On 15/03/2011 18:22, Mike Finley wrote: > > > > So far, I've not had to create new curves, just tweak existing ones for > > similar papers. Now I've switched to an Epson 3880 and it doesn't have > > many existing papers to start from, so I'm trying to figure out how to > > create my own curves, starting with a glossy paper (innova fibaprint > > white gloss). > > I've printed a 21 greyscale patch and read the Lab values, and am now > > not sure how to interpret them. > > > > L I'm not bothered about ... linearising should clean that up easily > > (its pretty good to start with) but am not sure how to interpret the a > > and b values: > > > > a starts from a low range of 0 to 0.4 (meandering) up to the 50% ink > > point, then rises steadily to 1.6 at 70% ink, and then to 1.8 at 90% ink. > > b varies up and down over a range of 1.5 to 2.4 (the paper white is > > 1.5). As there's not much of general progression, more meandering up and > > down, it seems I'll just have to take this as reasonable. > > > > Being partially colour blind, its not easy for me to judge the impact! - > > are these significant (this is supposed to be the neutral curve) or > > should I try to at least reduce the a ramp, by reducing the magenta > > content a little > > > > Thanks for any insight ... > > > > mike > > > > -- > > mike finley photography > > http://www.mikefinley.co.uk > > > > > > [Non-text portions of this message have been removed] > > > [Non-text portions of this message have been removed]
2011-04-29 by Mike Finley
Thanks! I think after reading Paul's papers it looks as if these results are in a reasonable range, so I shan't bother trying to 'improve' them at this stage!
On 28/04/2011 18:18, Michael King wrote: > Mike, > > I think the issue is that to some a change in "a" or "b" of say 1.4 is > not noticeable and to others it is. > Also we are more sensitive in midtones and less in shadows. It's all very > subjective. > > As a guideline I would have a look at what Paul Roark is achieving in terms > of a,b values for b&w and what he finds acceptable. > www.paulroark.com > > Mike > > On 28 April 2011 17:30, Mike Finley<mike.finley@...> wrote: >