Re: Colorsync-users Digest, Vol 5, Issue 385
Re: Colorsync-users Digest, Vol 5, Issue 385
- Subject: Re: Colorsync-users Digest, Vol 5, Issue 385
- From: Rick McCleary <email@hidden>
- Date: Fri, 31 Oct 2008 15:35:57 -0400
A conventional offset printing press cannot be "calibrated".
Presses are
"adjusted" by press operators.
Without "adjusting" operators, there is no "definable" printing
condition
possible.
I think you miss the point here. A press is not a machine; it's an
entire system, including the operator. When calibrating, the operator
is a variable just like blanket wear. I get the impression that a lot
of skeptics think that the point of a G7 (or any other flavor)
calibration is to make the press into a push-button device like an
inkjet printer. You know, just load up the file, push the button, and
go have lunch. That is clearly not the point.
The space shuttle, the Large Hadron Collider, an automobile assembly
line, an offset press. These are all complex systems comprised of
man and machine. None of them run by themselves. And the first three
only work because of very careful measurement, precise calibration,
and oversight by the folks running the machine. The result is very
predictable behavior. What is it about the fourth that makes it
immune to improvement from these same interventions? Why is an offset
press necessarily the one wild hare that can't work by the same
principles as every other manufacturing machine in the world?
When it is no longer possible to aim at your standard printing
condition you
need to find the cause for this failure. Why would you use the G7
methodology for this?
You don't use G7 for that. You get under the hood with your task
light and find out what's busted.
Rick
RICK MCCLEARY PHOTOGRAPHY
201 Orchard Drive
Purcellville, VA 20132
v 540-338-4895
c 540-454-7180
www.rickmccleary.com
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