Re: Canon 1140 and Colorwise
Re: Canon 1140 and Colorwise
- Subject: Re: Canon 1140 and Colorwise
- From: Rob Griffith <email@hidden>
- Date: Mon, 01 Nov 2004 10:01:35 +0000
> I'm using a Canon 1140 with a Fiery Z400 from EFI. I 've created an
> output profile for the printer and a simulation (reference) profile
> from Cromalin. I use a DTP41 and ProfilkeMaker.
>
> If i make the color conversions using Photoshop, transforming from
> Cromalin to the Canon profile, everything works fine, the problem
> appears when i try to put the profiles inside the RIP using ColorWise
> from EFI. There is little color shift, but it is easy to correct, the
> major problem is that the RIP does not respect the Maximum Ink I define
> in ProfileMaker, then , if someone uses a 400% CMYK, the tonner does
> not fix on the paper.
>
> Any ideas how to control the CMYK maximum ink ?
Hi Ricardo
I've done a lot of work in the UK and Europe for Canon and never really come
across this problem. If you look under Printer Features in the Print
dialogue you should see a item called "CMYK Simulation Method". In this menu
you should have choices for "Quick", "Full (Source GCR)", "Full (Output
GCR)". From the sounds of your problem I would guess that "Full (Source
CGR)" is being used. You can also change the default for this option with
ColorWise's Profile Set Up.
Also I usually perform a calibration both on the copier and then using
ColorWise Pro before profiling. When I output the patches I set "CMYK
Simulation" to "None". This way the calibration is used when the patches are
output and the customer can maintain the accuracy with the profile over
time. I usually limit the total dot to about 280-320% depending on the
copier and the paper.
I would say, however, that colour managing copiers is a bit like herding
cats. I can get really good matches on Canon copiers but keeping them
accurate over time is very, very difficult.
Regards
Rob Griffith
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