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How to control printer's ink channels by the Onyx

Offline Ferri Posted 04-20-2016 - 06:32 PM
Post: #1
3 Posts

Onyx Version:
HP DesignJet Z3200ps 44-inch photo printer

Hello everyone,
Such an amazing forum!
I am working on developing a model on predicting the color attributes of the color printouts, using the HP DesignJet Z3200ps 44-inch photo printer, and of course the Onyx Thrive. My printer uses 12 inks, including light cyan, light magenta, magenta, yellow, blue, green, red, photo black, matte black, light gray, E and G.
I am trying to print some color patches using some predefined ink sets, for instance, just cyan, magenta and yellow (i.e. CMY). In other words, I want to close all of the ink channels, other than cyan , magenta (M) and yellow (Y) and make the printer to use only the cyan, magenta and yellow inks for printing my color patches.
I was wondering if such control on printer’s ink channels is possible by the Onyx or not.
Moreover, does anyone know which printing technique the HP DesignJet Z3200ps 44-inch photo printer uses? I mean is it “Halftone” or “Continuous tone”?
Thank you in advance and appreciate your response.
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Offline Correct Color Posted 04-25-2016 - 07:11 AM
Post: #2
Frequent Flyer
128 Posts
Frequent Flyer

Onyx Version:


Easiest way to print individual channel patches with Onyx is to create a profile and then select "legacy ink restriction" for your ink restrictions. Then from the settings window, you can zero out any of the inks, including the lights and darks individually by adjusting their levels.

By what type of printer you have, I assume you're asking about the little box that pops up asking of you want to make a halftone or "contone" profile.

If so, then note that "contone" doesn't really mean continuous tone. I'm not quite sure who came up with that name, but your printer prints with dots regardless, so it can never be a truly 'continuous tone' device.

What "contone" means if you select it is that all control of printer inking is handled internally by the printer instead of by the RIP, which means that for what you're trying to do, you wouldn't have access to the ink restrictioncontrols at all, so you'd definitely need to click "halftone.".

In the real world, the bottom line is that it's much easier to make a "contone" profile than a "halftone" profile, but you give up a lot of the reason for even making a profile if you go that route.

Mike Adams
Correct Color
(This post was last modified: 04-25-2016 07:12 AM by Correct Color.)
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