Digital BW, The Print

Philip,

> ... I was looking at QTR 2200 profiles for UT7 inkset. 
>I found majority profiles are using 3 or 4 inks only ...

I have not looked at the QTR curves.  For some situations the light toner
might be able to give enough toning for a decent image, at least on a matte
paper.  However, for best quality for neutral tones and especially for
glossy paper, I'd use all the C and M channel inks.  In my view the LK and Y
would be the only unused spots for most situations.

However, you're best shot in a quad might be to use the UT7 C and LC
(carbons) and the Ut7 LM as the sole toner.  In a modern quad like the C86,
that might work.

 
>   Is it possible, using Epson drivers we need more than 3 or 4 inks, but
> use QTR we need only 3 or 4 for each paper?

QTR can be more efficient in this respect than the Epson driver.  The LK,
for example, is really a wasted spot for B&W with the Epson driver.
However, I suspect, especially for glossy papers, at least 4 gray inks are
needed for best quality in neutral prints.  The light toner only will
probably not be able to stop a visible cross-over in the shadows, and it may
flood the glossy papers there also.

Paul
www.PaulRoark.com 



 
> 
>    -----Original Message-----
>   From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of Paul
> Roark
>   Sent: Saturday, January 07, 2006 11:17 AM
>   To: DigitalBlackandWhiteThePrint@yahoogroups.com
>   Subject: RE: [Digital BW] Questions about MIS UT7 setup and dilutions
> 
> 
>   Philip,
> 
>   > For most papers we only need about 3 or 4 inks/positions from UT7
>   > so it is possible to use UT7 in 4 or 6 color Epson printers.
>   > Is this correct?
> 
>   No, UT7 needs the cyan and magenta hextone channels, in addition to the
>   black ink.  It has light and dark warm carbon and cool toner inks.  A
> 4-ink
>   printer only has 3 spots aside from the black.  The UT1 is the
> variable-tone
>   inkset that will work in a 4-ink ("quadtone") printer.
> 
>   > Also is it possible to buy only 3 inks if only use PhotoRag for warm
> or
>   > cold tone, and 5 inks for both? And keep other position with original
>   > Epson inks?
> 
>   The yellow position is the only one that is really optional and open.
> If
>   you are using a rip, you can also do without the LK.
> 
>   With the Epson driver, you probably could put almost anything in the Y
> spot.
>   To turn on the black ink with the Epson driver that ink does need to be
>   "full-on" in the curves set at 100%.  While the black ink is substituted
> for
>   all the midtones at that point, there is a slight risk that too high a
> gamut
>   ink in the Y position would affect the tone of the image in the deep
>   shadows.
> 
>   You can buy the inks in bulk or by the individual cartridge.
> 
>   >   MIS said EZN has only two different inks.
> 
>   The EZ midtone inks are neutral or warm.  That's it.  They both have the
>   same density.
> 
>   > How about UT7? All seven are different inks?
> 
>   Yes.
> 
>   Paul
>   www.PaulRoark.com
> 
> 
> 
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