Digital BW, The Print

The new HP PhotoSmart 8750 printer has a nine-color system with three blacks (black, 
dark grey, and light grey). Taken with a grain  of salt, the web site states that the prints 
will last over 100 years under glass and over 200 years in storage. 

The inks are dye-based.

I've heard that HP printers have the print head on  the ink tank and thus would negate any 
problems with print heads clogging and rendering the printer useless. Does anyone know 
if this is true of all HP printers?

Has anyone had any experience with HP printers in general? And specifically B&W printing?

A quick review I saw said the B&W quality was very good, but I have no idea of this 
person's qualifications to make such a judgement. I'd post the review but now I can't find 
it. Oh, well.

I used an HP 7600 series printer before I got a 2200.  The black and
white output was excellent as far as nuetrality goes. I still think I
get better results though from using a quadtone inkset on the 2200.
Also, I printed a number of postcard sized photos using the HP as
christmas gifts about a year or so ago. Recently, I saw one of these
gifts and noticed that it had faded and had begun to turn purplish.
The print had been in a normally lit living room and had not been
under glass. That was using the HP premium plus paper too, which is
said to be their most archival. Hopefully they made some improvements
with the new series - already I can see one - using two shades of grey
in addition to the the black ink. If I remember correctly, they only
used one shade of grey in the 7600 series.

Ben