Printing with Blue, Red and Yellow
Printing with Blue, Red and Yellow
- Subject: Printing with Blue, Red and Yellow
- From: "chrisvallen" <email@hidden>
- Date: Thu, 7 Dec 2000 13:58:19 -0500
I have a customer who prints his newspaper with Red, Blue and Yellow ink...
no Black. He is purchasing an imagesetter from us and will be doing his own
scans soon. I agreed to teach him how to scan, color correct and output film
without loosing any of the quality of his pictures. Don't get me wrong the
pictures aren't good but they could be worse.
I'm sure you are probably wonder WHY is he doing this. His web press only
has 3 heads together and the 4th one is further down the line and will not
register, he uses it for the black type. I assume over the years they have
tweeked the inks and the files until they reached this state. I hope to help
him back on the right track but the first step is the imagesetter.
I thought I would edit the ink colors in the cmyk setup, change it to custom
and enter the lab values I measured from the solid color bars in his paper
and from the paper white. I then set the black generation to none, convert
to cmyk "rby" and make color corrections based on what I see on the monitor.
He only wants to output the seperations and then strip them into his spot
color film. Anybody have a better idea that will display more accurately the
final print.
I also noticed that the seperations he has now are all at the same angle.
I'm guessing that this is helping his contrast because I see a lot of
overprinting of dots that read as black. Will we need to continue this
practice or will I benefit from a rosette? If so anybody have any ideas what
angles would be good.
Chris Allen
Implementation Specialist
Graphic Systems, Inc.