Datacolor User to User Support Group.

Last week I upgraded my laptop from Windows Home to Vista Business. I
ran into problems using the drivers provided by Epson for my R2400
printer, and found there were no drivers yet for Vista available. On
a newgroup (maybe this one) a link to an Epson site in Europe had
drivers for Vista, so I downloaded it and proceeded to use
PrintFixPro to create a paper profile with the MIS K4 inks. After a
week of working with them, today I found that the US Epson site had
their drivers posted. Thinking that may be the solution to some
posterization problems with my created profiles, I downloaded it and
installed it. I then used one of the canned profiles provided from
Epson for Matte Paper and saw that it was better than my created
profile with PFP. Could my posterization problem be caused by using
the Euro driver with a US printer, and solved by using the US driver
with the US printer? I'll create a paper profile with PFP for Matte
paper and see if it creates a more neutral print,the Epson canned
profile being warm; and having done that, determine if it is better
than the canned profile provided by Epson.

Your friend in Photography,

Johnny

>Last week I upgraded my laptop from Windows Home to Vista Business. I
>ran into problems using the drivers provided by Epson for my R2400
>printer, and found there were no drivers yet for Vista available. On
>a newgroup (maybe this one) a link to an Epson site in Europe had
>drivers for Vista, so I downloaded it and proceeded to use
>PrintFixPro to create a paper profile with the MIS K4 inks. After a
>week of working with them, today I found that the US Epson site had
>their drivers posted. Thinking that may be the solution to some
>posterization problems with my created profiles, I downloaded it and
>installed it. I then used one of the canned profiles provided from
>Epson for Matte Paper and saw that it was better than my created
>profile with PFP. Could my posterization problem be caused by using
>the Euro driver with a US printer, and solved by using the US driver
>with the US printer? I'll create a paper profile with PFP for Matte
>paper and see if it creates a more neutral print,the Epson canned
>profile being warm; and having done that, determine if it is better
>than the canned profile provided by Epson.
>

As long as you're consistent with the driver that you use to print the
targets, and then later on, print using the profiles that you've built from
measurements from those targets, I don't see any problems.

If you printed the targets through the European driver; built profiles;
and then tried using the profiles through the US driver; maybe there are
differences in color output that way (based on your driver media settings
and other driver settings) and, if so, yes, that could cause issues.

My suggestion would be: reprint the targets through the 2400 driver that
you are going to be using, and remeasure.

Also, make sure your measurements are "good". If you've mis-measured even
a patch or two, that's the mostly likely reason for posterization.


Best regards,

-- 
David Miller
Senior Software Developer, Digital Color Solutions
ColorVision