Digital BW, The Print

John-

In a recent test that Paul and I did we found that there was 
significantly more variation in consecutive prints than in the 
consecutive readings of any given single target. He was using a 220, 
me a 4800.  The print-to-print variations were not great, but my 
memory is that they were about twice the reading-to-reading 
variations.  And let's not even mention consecutive prints in Dektol. 

Walt


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "John Moody" 
<moodymz3@y...> wrote:
>
> And....  If you print the same target three times, you will get 
slightly
> different results; small, but real.
> 
> So that suggests, when getting down to the final tweaks, printing 
more than
> target, give proper dry down time, measuring each target more than 
once, and
> averaging all the measurements.  A nozzle check before each target, 
and
> after the last, for the overly obsessive. :-)
> Putting them all into a spreadsheet allows finding, and correcting, 
the
> occasional outlier before averaging.
> 
> I'm sure this procedure is not for everyone, but, there it is....
> 
> Best regards,
> John Moody
> 
> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@...m
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of 
Greg
> Sent: Thursday, December 01, 2005 7:53 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] Re: Low Dmax on Epson 2200 with K7 inks 
response
> 
> --- In DigitalBlackandWhiteThePrint@...m, "joshhackney"
> <joshhackney@g...> wrote:
> >
> >
> > Greg,
> >
> > Actually, there are 3 reversals between steps 26-28, 32-34, and 
38-
> 40 on the 51 random
> > step target data.
> >
> 
> 
> 0.1 L? That shouldn't be big enough to cause a problem. Maybe the
> flat spot is making it trip. But 0.1 L is within the hardware's
> tolerance, and if you measure the same patch several times without
> measuring any other patch, you'll see an even bigger difference.
> 
> 
> 
> 
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