QTR-Quadtone RIP

fwiw I've just printed 2200 OEM and R800 OEM from the same files via
QTR on Museo Portfolio Rag: Ultrafine, nearly vanishing hard-edged
details resolve equally well under a decent 10X loupe, despite the 4
vs 1.5 picoliters. Looks like the advantages of R800 boil down to
color glossies and faster, more quiet printing...

Guess I'll try to sell both locally...need a 2400 for panoramas.  






--- In QuadtoneRIP@yahoogroups.com, "momoinu_dc" <LotusM50@...> wrote:
>
> I printed the one point text file I used earlier using Black-only at
> 2880dpi on the 4800, so I could compare it to the QTR/K7 and Epson K3
> color inks prints.  I scanned the resulting print, again at 3200 dpi,
> and added it to the other scans uploaded at the site.  As before, you
> can find all the scans here:
> http://tech.ph.groups.yahoo.com/group/QuadtoneRIP/photos/browse/d000
> 
> The 4800 will produce a print similar in quality and resolution to the
> 2200.  From the scan of my prints, the prints from the 4800 using the
> color inks appeared deeper, more neutrally black, with more apparent
> sharpness than the black only print.  I think the apparent sharpness
> comes from what looks in the black-only print that black ink is
> substituted for the lighter color inks used in the color print.  The
> resulting print then appears little less sharp and fuzzier.  Look at
> the scans and let me know what you think.
> 
> Ultimately, whichever way we approach printing this, all the prints
> are fairly close -- and as Paul indicates, we are getting the most out
> of the printers.  The only remaining question is what is the basis of
> the one point text promotional print example.  It's resulting print
> comparison is in marked contrast to what we see here.  Why is it so
> different?
> 
> What I would be interested in seeing is how a print of the one point
> text files would look printed with QTR and UT7 and/or UT-3D inksets. I
> am wondering if there is an real difference in performance at this
> fine level of detail when compared with the K7 inks.  If anyone who
> can do this, and can scan the results wants to give this a try, you
> can fine the TIFF file I used here: 
> http://www.boncratious.com/images/one-point-text-crop.tif
> If you have trouble getting the file, let me know.
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "djon43" <djon43@> wrote:
> >
> > Using 2200/K2 @ 2880 (a good idea only with some images and papers),I
> > printed 1 pt from a 1 pt MS Word file. 
> > 
> > Viewing the originals, not scans, with an OK-quality 10X technical
> > loupe, it appears that "Black Only" may be faintly more detailed than
> > full inkset on Moab Kayenta (it's better with detail than glossies or
> > EEM). 
> > 
> > Perhaps the spaces between the Black Only dots help define detail (the
> > dots themselves are easily evident to the naked eye at 1440 black-only
> > prints).
> > 
> > It appears that 1 pt at 2880 is nearing the limit of sharp detail
> > resolution with 2200 using Epson driver and full color/QTR.
> > 
> > My guess is that paper selection is more important to detail
> > resolution than is ink (or perhaps printer dot size, 2200 @ 2880 vs K3
> > printer at that setting). I'll test that hypothesis carefully if the
> > bargain-basement R800 I'm waiting for works properly.
> > 
> > See something wrong in this?
> > 
> > 
> > 
> > 
> > --- In QuadtoneRIP@yahoogroups.com, "momoinu_dc" <LotusM50@> wrote:
> > >
> > > I've scanned in the print tests that I described below. I loaded
crops
> > > from the 3200 dpi scans into a album in the Photos section on
the QTR
> > > list's Yahoo Groups website.  Hopefully you will be able to tell
if I
> > > did something incorrectly.  Here is a link: 
> > > http://tech.ph.groups.yahoo.com/group/QuadtoneRIP/photos/browse/d000
> > > 
> > > The scans show more than I could see with a good 10x loupe.  
> > > 
> > > The QTR-Neutral K7 print is smoother and lighter but also
softer.  The
> > > print using the Epson driver on the 4800 with the K3 inks produced a
> > > deeper, more angular (searching for a word to describe it), but it
> > > seems with more errors.  The Epson K3 print also does indeed use
color
> > > inks in the print.  Yellow, cyan(Lt?) and magenta(Lt?) do appear
to be
> > > used -- contrary to what I could see with the 10x loupe.  I'll leave
> > > which is "better" to group discussion.
> > > 
> > > I guess the most surprising thing about this that I can not
duplicate
> > > the images used in the promotional 1-point text comparison. The
> > > promotional comparison was done on an R2400 while this was done on a
> > > 4800 -- but the 2 printers are capable of the same resolution
and use
> > > the same inkset.  The 2 print samples don't appear to be all that
> > > different in resolution, so even if I used a smaller type point, I
> > > don't think a difference similar to the comparison would appear.
> > > 
> > > Any thoughts, comments, etc.?
>