Digital BW, The Print

I have been using one batch of MIS PK purchased about 6 weeks ago
(never used it before) and was quite unhappy with DMAX on any paper:
I tried 3 "microceramic" types, at any ink coverage.  (I do not use
QTR so far, but tryed the calibration process once to see how it
works. My scanner is not good enough for linearisation, but
calibration patches allow very rough density assessments.)  I am not
reaching D=2 on an epson 1270, ever.  
FS-N dark greys are denser, and I have used Paul's curves that do not
use the black (very slightly modified for one reason or another) to
get excellent results. 
The change in ink base makes it difficult to know what to do, and
whether the PK batch was worse than usual or if we (who get weak PK
blacks) have another problem 9and could still have it with the new
base).  Paul's explanation of pigment overload seems plausible, but I
wonder if there is something else going on too, in the case of the low
density we see as it seems to contradict other posts of PK
performance.

My only regret is that I got a pint of PK with the old base - I have
no idea what it is good for (well it does ~OK in my colour gloss
printer but I won't say more about that here).

Ken


> > semi-gloss media. The biggest problem I've encountered is that
the MIS
> > Photo Black ink is simply not very dense.