Re: ICC profiles for Roland HiFi-500 printer with ColorChoice RIP.
Re: ICC profiles for Roland HiFi-500 printer with ColorChoice RIP.
- Subject: Re: ICC profiles for Roland HiFi-500 printer with ColorChoice RIP.
- From: Rudy Vonk <email@hidden>
- Date: Tue, 16 Oct 2001 09:59:03 +0200
Alexey Gribunin wrote:
>
So now I cannot understand why Roland
>
prints 8 colors (8 heads) whith it's oun 4-colors profiles but do not wants
>
to do it whith my profiles.
First of all, make sure you have the FJ-500 in 8-color mode. From your
description, you seem to have it in another mode. On the Control Panel
menu, go to "INK CONTROL", "CHANGE INK SET" and ensure that you have
"PIG. 8" selected. (And that the corresponding inks are correctly
installed, of course.) Finally, make sure ColorChoice also knows you
want to print with 8 pigmented inks.
When you then use a 4-color profile, the RIP will apply its own
algorithm for converting the CMYK output channels from the color
transformation into CcMmYKOG.
If you have the appropriate profiling software, *and* the means to print
straight through to the printer bypassing this internal RIP algorithm,
you can in theory build a six-color profile (CMYKOG) which I am told
ColorChoice will respect, but frankly, this is probably a lot more
trouble than it is worth.
As mentioned in other threads before, it is my personal opinion that it
is conceptually wrong to consider LC and LM as separate colors in the
profiling context. They are part of the printer's mechanism to produce
Cyan and Magenta, and should be profiled as such. Obviously, if the RIP
allows some control over its use of LC and LM, this should always be set
to the same value that was used when printing the target.
--
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Rudy Vonk
Oviedo, Spain
<email@hidden>
+34 607 354100
You can't always want what you get.
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