Digital BW, The Print

Sergei,

Txs for sharing your experience.

>>K as gray curve produced very weak 100% spot, it had L 12 and 95% spot
was 3.2.

Ok from my experience with HPPK you have to use very little GLOP (5%) with
the darker 50% of the tones, or it increases the L* reading.
HPPK is very sensitive to GLOP %.  I am getting L*<2 with IGFS and Epson
Exhib.

>>I also put matte compatible inkset into 1400. Here my goal was to cool
down highlight and produce more neutral tones. I used 8% dilution of HP
PK in Y position, replacing 2% dilution of Eboni, inks positions are

You'll get much more neutral result from the following;

K - 100% Eboni
C - 100% HPPK (this is about 50% density of Eboni)
M - 16% HPPK
Y - 18% Eboni (use this to warm up the 100% HPPK a bit).
LC - 8% HPPK
LM - 4% HPPK

I think if you want neutral, better to start with a neutral ink and tweak
that.
But maybe I am misunderstanding what you are trying to achieve.

Mike




On 5 February 2010 08:04, santonov2you <drumscanner@...> wrote:

>
>
> Hi all!
>
> Finally I fixed my old 2200 and put there mix of C6 diluted HP PK inks
> and couple carbon inks from MIS that are compatible with glossy paper.
> Idea was to warm up black tones a little bit, I think pure HP PK is too
> cold in black. Inks positions are:
>
> K - HP PK 100%
> LK - HP PK 33%
> C - MIS UT7 C
> M - HP PK 16%
> LC - MIS UT7 LC
> LM - HP PK 8%
> Y - MIS Glop
>
> On Kirkland paper this setup produced DMax 2.86, something I didn't
> expect at all. I spent some time figuring out QTR profile, because using
> K as gray curve produced very weak 100% spot, it had L 12 and 95% spot
> was 3.2. At the end I changed inks setup and used MIS inks as grays and
> HP inks as toners. You could see table with 21 patches ramp here
> <http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/Kirklan\
> dGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21164<http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/KirklandGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21164>>
> , and curve with
> Lab b here
> <http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/Kirklan\
> dGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21163<http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/KirklandGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21163>>
> , sorry I don't
> have usable Web page, and put these picture to SkyDrive. I will try to
> make profile more neutral. On my 2200 pure HP PK has heavy microbanding,
> much worse than on 1400, and not suitable for BO printing. Probable it
> was a reason why 100% black spot was so weak. Mix of warm carbon MIS
> inks and HP PK is very smooth. Glop doesn't help too much -- where
> paper has no inks, it still has visible gloss differential.
> So Paul's suggestion worked fine. I am really surprised by DMax, in the
> black spot my spectro measured L 1.26, and non-linearized profile
> reading was 1.13. I could expect that Silver Rag will be even darker.
>
> I also put matte compatible inkset into 1400. Here my goal was to cool
> down highlight and produce more neutral tones. I used 8% dilution of HP
> PK in Y position, replacing 2% dilution of Eboni, inks positions are
>
> K - 100% Eboni
> C - 33% Eboni
> M - 16% Eboni
> Y - 8% HP PK
> LC - 8% Eboni
> LM - 4% Eboni
>
> Y ink was used as toner, I moved toner curve to highlights a little bit.
> I prepared two profiles, one with diluted HP PK, other one just Eboni.
> With this setup the best DMax was on PremierArt Matte BW 200 -- I still
> have some leftovers. I got DMax 1.71 with C6 only and 1.7 with cooled
> inkset. Again, table with measurements is here
> <http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/Kirklan\
> dGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21165<http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/KirklandGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21165>>
> , and Lab b
> graphs for cooled and non-cooled inkset are here
> <http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/Kirklan\
> dGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21166<http://cid-b0975f9c313515c7.skydrive.live.com/self.aspx/.Public/KirklandGraph%5E_C6%5E_HPPK.gif#resId/B0975F9C313515C7%21166>>
> . Cooled down
> inkset produces quite neutral prints, highlights are not warm at all.
> Visually tone of glossy inkset that I used for Kirkland paper is
> somewhere between cooled and non-cooled tones for matte paper.
> I profiled some other matte papers too, got about the same tones, but
> DMax was lower than on MatteBW. I am expecting delivery with HPR and
> PremierArt Smooth FA 200 (Alise Museum is backordered) and couple papers
> from Red River, after that I will profile these too. Cooled tone looks
> very nice on PA FineArt 205 (which is natural paper, but DMax is "only"
> 1.59). Looking at DMax, matte paper can't hold the candle to
>
> If anyone is interested in using these non-standard inksets, I could
> upload my profiles. I selected 2200 for glossy papers over 1400 because
> of extra slot for glop, but if you drop glop, same glossy setup could be
> used on any 6 inks printer.
> These setups are probably not compatible with Epson driver, but I don't
> use it at all.
>
> Thanks to Paul Roark for good ideas,
>
> Sergei
>
> [Non-text portions of this message have been removed]
>
> 
>


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