Digital BW, The Print

Roy;

You wrote-
> I don't know why magenta is different. 

I don't know if this is of any help, and I haven't figured out if it 
relates to the 7500 but when I was working out an inkset for the 
1280, at one point I injected 5ml of lm, lc, and Y into the 
respective chambers of a partially full (greyscale) cart. I was 
trying to get a more accurate picture of how those inks where been 
laid down. To my suprise I also discovered that the Epson driver 
lays down a LOT more lc than lm, so the above numbers may be an 
effort to account for that discrepancy. 

Steve K