Digital BW, The Print

The more important question is "for what media were the curves you are using
written for?".  When someone sits down and develops a set of QTR curves they
choose then which "media type".  Ink levels, partition points and
linearisation are all done with a particular media type set.  In general, it
is not a setting that one would change without redoing the curves.


> From: Stephen Billard <stephen@...>
 
> 
> The answer will have to come from Roy. I don't know what the print driver does
> with the media type information.
> 
> -Stephen
>  www.sbillard.org/Stephen
> 
> 
>> -----Original Message-----
>> From: Richard Wolfson [mailto:rw@...]
>> Sent: Thursday, April 07, 2005 11:56 AM
>> To: DigitalBlackandWhiteThePrint@yahoogroups.com
>> Subject: RE: [Digital BW] QTR Media Type setting
>> 
>> 
>> 
>>> From: Scott Graham [mailto:gebilwil@...]
>>> Try it and see.
>> 
>> So far I have observed no effect. But between Stephen and
>> Roy, an authoritative answer ought to be available; the
>> control appears to be undocumented in QTRGui help.
>> 
>>> In the Epson driver, a lot more is changed than curves: ink
>>> type in particular (matte or photo),
>> 
>> Matte vs. Photo ink applies only to black, and then only if
>> both blacks are housed in the printer. At present, this means
>> the Epson 4000 only. And QTRGui has a separate control for
>> selecting photo vs. matte black.
>> 
>>> ink load,
>> 
>> Yes, which is what I meant by "curves" (internal to the Epson driver).
>> 
>>> feed suction, etc.
>> 
>> Suction is a feature of wide format printers only. Possibly
>> the "Media Type" setting in QTRGui controls this, but I don't
>> know. Which is why I asked.
>> 
>>> and the curves don't change at all unless you are using
>>> printer color management (same as source in Print w/Previewe)
>>> Scott
>> 
>> Perhaps you are referring to ICC profiles? The Epson driver
>> certainly changes ink loading (what I meant by "curves") as a
>> function of media type no matter what color management scheme
>> is in use. Of course, certain media settings are synonyms for
>> certain others in some printers.
>>