Digital BW, The Print

Hi

I've only recently got a 9600 for photo printing use and have been 
experimenting with some of the 2200 curves.

I found the OFB ones give quite good results with Epson 
semi-gloss. Since the printer is to be used for glossy colour as 
well, matt black ink is not really an option... 

My question is whether there is any way I can use a flatbed 
scanner to have a stab at linearisation? My attempts at 
borrowing a densitometer have been unsuccessful so far, and 
they are not exactly cheap (or plentiful on eBay here in the UK)  
I'm happy to do any calculations and have a go!

Would it possibly be easier to scan a step wedge and create a 
photoshop acv curve? or does this affect a different area of how 
the driver works?

Although happy to experiment ... if anyone has Photo black 
curves for any of the following I'd be greatful for the approriate 
numbers:
Epson  PGPP(250)
Epson Premium Semigloss Photo Paper (250)
Epson Smooth Fine Art

(why these papers? - rolls of them came with the printer :-))

As an aside to this I was wondering how  Gimp-Print 5 will 
benefit the quad side of things, given the significant architectural 
changes?

bye for now
Keith Cooper