RE: Printing Lab from Photoshop
RE: Printing Lab from Photoshop
- Subject: RE: Printing Lab from Photoshop
- From: Marco Ugolini <email@hidden>
- Date: Tue, 7 Jul 2009 11:36:52 -0400 (EDT)
Henk Geesink wrote:
>Mark,
>
>My opinion is as a Epson Profocus dealer that the latest versions of Epson
>printers that they all are CMYK printers and has in the driver a CMYK
>conversion to its own CMYK space.
>
>The principal is if you feed the driver with a color space differed then its
>own color space it will be converted to its own. So if you feed a RGB / CMYK
>/ LAB or what's else it will be converted to its own color space.
I think that, when it comes to inkjets, the expression "CMYK printer" is misleading. The presence of light cyan, light magenta, etc., makes the usual meaning of "CMYK" not applicable.
Like a funnel, the driver forces all incoming data to be "poured" into the same container. My understanding is that the driver's engine functions in a device-specific RGB space, whose role is to accept the incoming data. If the incoming data are RGB, they are processed without conversion -- with or without further driver-specific color manipulation, depending on the color settings specified by the user at the driver level. If the incoming data are not RGB, they are first converted to the driver's own RGB device space. From there, the color signals are then distributed to each printhead according to what the driver's internal mechanism determines to be the proper mix of inks that creates those device colors.
Marco Ugolini
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