Digital BW, The Print

In a message dated 10/12/2004 10:30:51 AM Pacific Daylight Time,  
DigitalBlackandWhiteThePrint@yahoogroups.com writes:

Consider  also that the dmax readings I'm getting on the 2000P (like my old
7500) are  much better than the newer printers.
Paul,
 
It may be that the first genration of Archival Inks were designed more for  
gloss than matte papers since the Dmax of the 2000P, using BO was pretty weak.  
The "microencapsulation" breakthrough and subsequent patents by Epson made 
them  the first to be able to print on glossy papers and make them look like 
RA-4  prints (the new, 3rd generation UC, R800 model, bears this out for sure).
 
Also the pigment load of those inks was much less than the current UC's,  so 
they had to drive the drops a little harder with a longer wait-to-dry time,  
hence the slower operating speed on the gloss/semigloss driver  settings.
 
So now that the high pigment load MIS-UT's are being used in that unit,  the 
driver/head currents might have a little more "umph" than the 2200/7600  
printers.
 
In profiling the OEM UC's for various papers, I found the color test  target 
saturation to be weakest with the 2200, 7600 in the middle, and  the 4000 
strongest of all using the same settings and paper batch on all 3. So,  I'm not 
surprised about the superior Dmax of the older units, but I'm surre we  are 
still splitting hairs in the process from a visual standpoint.
 
Claude






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