Re: Gradients on Inkjet?
Re: Gradients on Inkjet?
- Subject: Re: Gradients on Inkjet?
- From: Rich Apollo <email@hidden>
- Date: Mon, 20 Mar 2006 09:40:11 -0600
Jon Crook wrote:
I¹m getting banding in gradients on my Epson 9600. If you take a
gradient
and rotate it in any direction the banding rotates as well. The
Epson is
functioning properly, all nozzles are firing, the heads are
aligned, and the
paper feed is set correctly. I am running at 720dpi unidirectional
through
Oris ColorTuner. I get the same banding through Windows and OS X
Tiger as
well. The gradients that I am running are from 100 to 0 over 20
inches. I
have created this gradient in Quark 6.5, Illustrator CS2, and
Photoshop CS2
and I get banding in all three. I got the same results when I sent
the files
to three other companies using a 9600. I am aware of a couple of
fixes such
as adding noise and increasing the resolution but these are not
viable
options for us as we must maintain our current level of production
and
quality.
I have two questions.
1. Is there anything else that I can do to greatly reduce or
eliminate the
banding with my current system?
2. Is there any inkjets out there at least 40 inches wide that can
print a
smooth gradient at a production rate of about 20-25 28²x40² proofs
a day?
If you change the size of the gradient does it alter the banding? At
the size you quote each discreet tone level would be 0.078125 inches
wide. Adding noise may be your only option.
As some RIP systems can utilize 12-bit output on smooth shaded
objects, it may be best to build the gradients in Quark (if you can
get the Quark blends to be recognized as a smooth shaded object) or
Illustrator or InDesign, if the press is the final destination for
the file.
Rich Apollo
314-344-1144
email@hidden
www.prioritylitho.com
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