Re: Proof-problem
Re: Proof-problem
- Subject: Re: Proof-problem
- From: Jim Rich <email@hidden>
- Date: Mon, 10 Sep 2001 18:50:29 -0400
On 9/7/01 11:19 AM, "Gvran Eriksson" <email@hidden> wrote:
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Hi. I work on a small pre-press department with some high quality customers.
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I have a problem with our Epson 9000 with the BestColor RIP.
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We purhased this a year ago, and it works nicely. The problem are the
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Calibration. We use Epsons own standard ink, and 2 qualitys of paper. One
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called semimatt 6150, and one matt 5165. (Coated & Uncoated)
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The problem is this:
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When all is calibrated and fresh we print out a testpage. This page has also
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been printed in our Heidelberg press. Its not a perfect match, but close.
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A day later the Epsonprinted page has a lot more yellow tone....and I mean a
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lot.
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I have measured areas in it hour per hour with a spectrophotometer, than
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translated these values to cmyk. The first three hours some areas changed up
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to 6%....This may not sound so much, but its a catastofy in neutral gray
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parts. The yellow effect slows down after 24 hours. Than it is more or less
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stabile. (I always makes new outputs if a month has past)
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Now we always have to turn down yellow in output, than wait atleast three
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hours before show it to a customer.
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Of course the equipment is a nightmare to calibrate properly.
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First question: Has anybody ells experienced this?
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Second: If so, how do you handle this?
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Third: Why does this happen? Is it paper or ink?
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/GE
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If I understand your post, this phenomenon is often called dryback. Epson is
very aware of this. And it is the nature of this 500/700/9000 beast. One
solution is to print out your calibration patches and wait ( aboiut 24
hours) to measure them and of course wait 24 hours to view them for color
oks.
Jim Rich