Digital BW, The Print

Does anyone have a link to a good comparison of the 1280 and 2000P
performance specifications other than what Epson provides on its web site?
The seem to use apples and oranges in their comparisons.  For example, how
do the droplet sizes compare?  Epson quotes 4 picoliters for one and .1
micron for the other.  A picoliter is "10 raised to the negative 12" of a
liter and a micron is one millionth of a meter.  It has been a long time
since science class, but to me that means a picoliter is a measure of volume
and micron is a measure of length.

Thanks in advance,
Doug