Digital BW, The Print

Hello--I am new posting here, but have read posts for a long time, and I know how 
experienced this group is.  My Epson 2200 printer died, and I would like to get a new printer 
that has excellent B&W output.   I think I have narrowed the choice down to the Epson 3800, 
and the Epson 1400 equipped with Piezography K6 inks.  Does anyone here have experience 
with the Epson 1400 or these inks or both?  Can a 3 black system make prints that approach 
a 6 black one?  How does this system compare to OEM and the Epson 3800?  Any insights 
would be really appreciated.