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Digital BW, The Print

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Something wrong with new batch FS/FSN?

2006-06-03 by John Custodio

Epson 4000, FSN C, M, Y on the left side, FS C, M, Y
on the right side (in the LC, LM, LK positions), Eboni
Black. Using QTR. Hahnemuehle Photo Rag 308.

QTR ink separation page printed at 100%.
Eye One spectro. 
100% densities read:

Eboni 1.71
FSN-C 1.24 Lab a=-0.5 b=-0.2
FSN-M  .53 Lab a=0.3 b=-6.7
FSN-Y  .36 Lab a=0.2 b=-4.4
FS-C  1.31
FS-M   .49
FS-Y   .36

I've used FSN and FS on this machine before with no
problem. What seems wrong is:

The FSN-M and Y seem too blue (note high negative b
numbers) while the FSN-C is close to neutral.

The dark grays for both FSN and FS should be darker
(density around 1.5?). Also for both FSN and FS it
seems there should be more of a density difference
between the light grays and middle grays (M and Y).

I used to know the 100% densities on HPR of Piezotone
Selenium inks when I used to had them in my printer,
but that was a long time ago and I don't have those
test targets anymore.

What should these numbers be and what about the blue
FSN? I'm suspecting I got bottles with the wrong ink.
(The bottles are labeled FSN-C, FSN-M, etc.). I will
be contacting MIS on Monday.

-John

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