Re: HP4600dn laser profiles
Re: HP4600dn laser profiles
- Subject: Re: HP4600dn laser profiles
- From: Henrik Holmegaard <email@hidden>
- Date: Sun, 15 Feb 2004 01:53:29 +0100
Ryan Thrash <email@hidden> wrote:
how to maximize the gamut and the
appropriate driver settings to get "pure" CMYK channels
Back in the archives you will find a thread that discusses the
difference between the graphic arts printers that give you access to
the full gamut in RGB and the office printers that do not give you
access to the full gamut in RGB. The graphic arts printers have two
behaviours for RGB, either the Level 1 / Red Book channel rotation or
UseCIE in which a choice of RGB working spaces is assigned to incoming
RGB (and a choice of CMYK working spaces to incoming CMYK). The office
printers have only one behaviour for RGB which is to assign sRGB. I am
not sure as I have not worked with this printer, but I would attempt to
find a paper that gives a good gamut, I would attempt to find an
operating environment that gives stable color, I would make sure that a
CMYK working space is not being assigned to incoming CMYK by the UseCIE
procedure in the driver (described in the old cookbooks), and I would
then print timed CMYK characterization charts with few patches to allow
for the interpolation to smooth as needed, average them in MeasureTool
and choose a relatively high black replacement separation. Based on how
the printing pipeline is typically designed, this should give you the
result you want.
Thanks,
Henrik
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