RE: How is a printing press calibrated and how much does it cost?
RE: How is a printing press calibrated and how much does it cost?
- Subject: RE: How is a printing press calibrated and how much does it cost?
- From: Roger Breton <email@hidden>
- Date: Tue, 19 Jul 2016 08:00:14 -0400
It is true that a closed-loop system brings huge expectations, again, from
printers and experienced operators who fail to grasp the important aspects
of offset lithography -- I can't speak for other printing processes. It is
remarkable, in North America at least, in my humble experience, that the
bulk of these systems are still predicated on controlling ink optical
density.
/ Roger
-----Original Message-----
From: Mike Strickler [mailto:email@hidden]
Sent: Monday, July 18, 2016 6:32 PM
To: Colorsync Users List <email@hidden>
Cc: Roger Breton <email@hidden>
Subject: Re: How is a printing press calibrated and how much does it cost?
Perhaps, Roger. But maybe this attitude is partly born of the experience
with traditional fingerprinting approaches, wherein the press is "studied"
and its idiosyncrasies recorded for use in vaguely defined procedures for
compensating for them. Best practices today involve measurement against
industry specifications and immediate correction of deficiencies, again,
premised on the idea that the offset press and inks is a relatively
standardized system. Where we don't have a widely accepted standard, i.e.,
when printing with high-chroma inks and/or FM screening, or printing on
plastics, a house standard can be made. But this is still an "active"
approach rather than the "passive" one of merely characterizing and tracking
over time, with occasional corrections made. My experience is that when this
approach is explained and demonstrated there is much less resistance because
the "gratification" is immediate. It is true that many presses ship with
expensive closed-loop systems that don't always work as well as they should,
and in these cases it can be very difficult persuading the company that
something more needs to be done. I recently had a particularly unfortunate
experience of this.
On Jul 18, 2016, at 2:50 PM, Roger Breton <email@hidden> wrote:
> Mike Strickler (wisely) wrote :
>
>> Dismiss any suggestion that an annual or semiannual "fingerprinting"
>> or "certification" is what you need--these are quite close to worthless
for assuring consistent color output.
>
> Yet... In my humble experience, the majority of printers are reluctant to
systematically "study" the long term behavior of their equipment as they see
this as a recognition that their million dollar equipment are inherently
"deficient"? I'm constantly faced with this attitude.
>
> Best / Roger Breton
> www.graxx.ca
>
>
>
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