Posterization in a Press Profile?
Posterization in a Press Profile?
- Subject: Posterization in a Press Profile?
- From: Paul Foerts <email@hidden>
- Date: Fri, 02 Oct 2009 13:00:02 +0200
Date: Wed, 30 Sep 2009 14:11:08 -0700, Mike Strickler <email@hidden>
wrote:
>
> At the risk of tedium I will repeat my colleagues' caveat: Please do
> be careful when characterizing a device as drifty as a press. It is
> not a trivial exercise to get truly representative and useful
> measurements, and what you do get will need to be averaged and
> "smoothed" to be make it more generally valid over time. This is not
> a procedure that most in-house personnel take on, and you may wish to
> call on some outside professional assistance here.
>
This is indeed very true...
A press cannot be characterized or profiled. Only printing conditions can be
characterized/profiled. (A press offers uncountable conditions)
So why not target a standard printing condition? Good profiles are freely
available. (Manually tuned and tested and still tested and retuned...).
Custom printing conditions should only be used in closed-loop situations
where ideally only one party is controlling the process.
Process control is the key.
Paul
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