Re: Colorsync-users Digest, Vol 4, Issue 364
Re: Colorsync-users Digest, Vol 4, Issue 364
- Subject: Re: Colorsync-users Digest, Vol 4, Issue 364
- From: Brian Lawler <email@hidden>
- Date: Fri, 12 Oct 2007 07:27:27 -0700
Hi all,
I have profiled an Indigo 3050 several times, and had excellent results.
My best results were obtained with one of Bill Atkinson's CMYK
targets (GCR/UCR irrelevant at this point), and the profile made with
ProfileMaker Pro.
I made my most successful profile for SAPPI gloss 80# paper.
The Indigo auto-calibrates each time you start printing with a new
press setting (change halftone frequency or style and it
recalibrates). This calibration is very good, and seems to bring the
machine to the same starting point each time. As a result, my press
profile is extremely accurate if the paper remains the same, and I do
not change the halftone settings.
Results are excellent. My profile uses GCR, but not 100%. I prefer a
lower GCR setting, typically 25-50%.
All process colors cost the same on the Indigo, so there is no
financial reason for using GCR, except that it will use slightly less
CMY toner as it transfers more of the image to the black printer.
Gray-balance is not an issue on Indigo (especially compared to web
presses!), so maintaining neutral gray is also not a justification
for using GCR. It works, but it's hard to argue that it's a critical
process on the Indigo.
I have tested the press with pre-separated files that use the
profile, and I have also tested it with PDF files that have been
converted to use the profile at creation.
Both RGB and CMYK input sources converted to the press profile
beautifully.
I am very fond of the Indigo press, and have come to the conclusion
that it's the best digital press that I have access to. Results are
predictable and consistent, and very "like litho."
I used a SpectroScan to make the readings, though I have an iOne Pro.
It allows me to take a lunch break while it works.
HP has (like many folks do) a blind affection for SWOP, and they like
to make the Indigo behave like a SWOP press. My gamut measurements
show that the press is far better than SWOP, and my profile allows me
to print with a brighter, bigger gamut of colors.
I love the results.
Best wishes,
Brian P. Lawler
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