Re: Epson driver color management
Re: Epson driver color management
- Subject: Re: Epson driver color management
- From: email@hidden
- Date: Mon, 22 Apr 2002 17:21:55 EDT
In a message dated 4/22/02 3:23:13 PM, email@hidden writes:
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It's not exactly my idea of fun color managing low-end (i.e.,
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non-Professional Graphics inkjets) Epsons but I need an authoritative answer
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regarding some very simple Epson driver ICC color management functions.
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I
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don't want to limit my questions to a specific driver as this question
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applies to ALL Epson drivers.
Unfortunately the theory is not identical for all Epsons, or across
platforms... but if we avoid the most complex details of "printer color
management" settings, then we should be okay...
Here are my questions:
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1) When you select the ColorSync radio button, the driver looks to your
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ColorSync printer profile, right?
Right...
So what effect (if any) does the "Profile"
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pop-up menu (in the Epson driver) have? Is this a device link profile?
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You
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can't see other ICC printer profiles located in your ColorSync Profiles
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folder from this pop-up menu; you only see "EPSON Standard" and three other
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CSW profiles. Why are only these profiles visible? The paper type device
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link makes sense; it controls how much ink the system delivers to the paper,
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so what's with the Profile menu?
No, there is a trick here... Epson came up with the scheme of building a
shell "Standard" profile and selecting actual profiles by checking the paper
type and resolution settings to get the correct canned profile. On Windows
this functions a bit differently, as Windows assumes one profile per device,
but the idea is the same.
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2) When outputting testcharts, I've heard that you get better results and
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profiles when using RGB testcharts rather than CMYK. Which should be used
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and why?
RGb targets (and profiles) with the RGB Epson driver, CMYK profiles can be
used with CMYK PostScript RIPs.
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3) Does ICC profiling (ColorSync method) or 'Epson color adjustment' yield
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better results on these low-end little monsters? I'd like the honest, "I've
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been through it and this is how it works in the real world" answer here.
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Please no theories.
The low-end little monsters offer some of the best color imaging in the
world, and to get the most from them they need spectrophotometer built custom
ICC profile; be it for the RGB driver or a RIP.
C. David Tobie
Design Cooperative
email@hidden
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