G7 press calibration, best press conditions or average?
G7 press calibration, best press conditions or average?
- Subject: G7 press calibration, best press conditions or average?
- From: Steve Miller <email@hidden>
- Date: Thu, 30 Oct 2008 09:00:03 -0500
- Thread-topic: G7 press calibration, best press conditions or average?
We have been using the G7 method of press calibration for two years. It has
helped us tremendously. Each time we calibrate, (we have several presses) I
have a discussion with the press room regarding the condition of the press.
I have always recommended that the press be in the best printing state that
the press can possibly be in. The press room has the opinion that the press
should be in an average state. Meaning that after press maintenance has been
conducted, the press should be allowed to run halfway through the time
period before the next scheduled press maintenance is performed. Then
perform a G7 calibration. That way they get an "average of press
performance".
I'm well aware of the Press Operators guide to color and G7 and the press
check list that goes with it. I've shared these documents with the press
room.
Do any of you have an opinion on when the calibration should be done? Also,
if it is best to calibrate soon after maintenance when the press is printing
at it's best, how can I explain to the press room that this is the best
press condition to calibrate using the G7 method?
Thanks,
Steve
On 10/29/08 2:05 PM, "email@hidden"
<email@hidden> wrote:
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> Today's Topics:
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> 1. Re: SWOP Proof Certification, TRxxx Characterization Data
> (Klaus Karcher)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 29 Oct 2008 19:56:39 +0100
> From: Klaus Karcher <email@hidden>
> Subject: Re: SWOP Proof Certification, TRxxx Characterization Data
> To: Mike Eddington <email@hidden>
> Cc: colorsync-users <email@hidden>
> Message-ID: <email@hidden>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Mike Eddington wrote:
>> The proofing system procedures
>> spell out the "certified system" requirements. See annex E-G....
>>
>> http://www.swop.org/certification/PROOFING CERTIFICATION PROCESS_v15.pdf
>
> I think we should carefully differentiate between proofing *system*
> requirements (important for vendors and buyers of proofing systems) and
> requirements for individual contract proofs (important for provider and
> buyers/users of proofs). If I got it right, annex E-G concerns proofing
> systems and annex H is a template for an ADS (important for proofs when
> finalized by the proofing system provider).
>
> BTW: there are the same two missing patches in annex J-L as in the
> finalized published ADS:
> <http://www.google.com/search?q="all+fifty-four+(54)+patches"+site:http://
> www.swop.org/newADS/&filter=0>
>
> Klaus Karcher
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