Digital BW, The Print

Alex,

Interesting methodology for density measurement.  It does not result in
numbers that are equivalent to printing the ink on the paper, but if it
works to find equivalent densities, then it is very useful.

Your thoughts regarding FS ink placement in a hextone machine are what I
recommended before the FS-E series inks were out.  Several people tested it,
and it seemed to work well.  Of course, writing the curve(s) to control the
mix has not been done.  (You'll be able to do a grayscale curve for speed
and convenience, and an RGB curve to maximize quality.)

Paul
http://www.PaulRoark.com

  -----Original Message-----
  From: a_pettit_jr [mailto:a_pettit_jr@...]
  Sent: Thursday, August 22, 2002 3:38 PM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: [Digital BW] Re: Epson 2000P what's different ?


  It was quite simplistic as I have no densiometer..
  I put a drop of black into a small bottle and diluted with a calibrated 1
ml. syringe type dropper until I obtained a light gray color. As it turns
out, that was a dilution of 1750:1. I then just diluted the others to as
closely the same color as the grey and calculated the proportionality of the
drops. ( Y required only 60 drops of water to equal the black dilution,
60/1750*100 = 3.4% ) aka Kitchen Sink Science <G>

  I was just looking at nozzle test from the Epson 2000P color set. I am
wondering if the C and M positions could be occupied by the 23% inks ( Cyan
and PCyan), the PC and PM by the 7.3 % inks (Magenta and PMag), B=B and Y=Y
?? It looks close..

  Alex



  --- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" <paul.roark@v...>
wrote:
  > Alex,
  >
  > How are you measuring densities?
  >
  > Note that M=PM & C=PC.  This is the Piezo/FS (non-E series) pattern that
is
  > inconsistent with the Epson driver.  (And one reason I like quad
printers,
  > where one can use an Epson workflow or Piezo workflow with the same
inkset.)
  >
  > Paul
  >



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