Digital BW, The Print

Hello all,

I have two Epson 1280 printers and when I print the same image using 
the same ink (Eboni) the results are decidedly different. With the 
older printer the blacks are about one Zone lighter than the print 
from the newer printer. I can make adjustments to accommodate this 
difference, but I wonder what is the reason for such a large 
difference in ink laydown. Front end on both is 20% dot gain and 
back end is 15% and proofed at 20% dot gain. The older printer image 
is even warmer that the newer printer image, but I filled both the 
black cartridges at the same time from the same bottle of ink. That 
eliminates the possibility of differences in ink content coming into 
the equation. I haven't, or understand the need to make printing 
adjustments to the older printer to get the same results from both 
printers, but if that is going to be needed; there's no problem with 
that, but I would like to know what is causing the initial 
differences in prints. Any and all views on this will be appreciated 
and tried by me to further learn about printing idiosyncrasies.

Your friend in Photography,

Johnny