Digital BW, The Print

>Do B&W inks cause any problem with clogging?

It would certainly seem that way.   Hardly a day goes by on this 
forum where someone doesn't post about a clog. 

I've had an Epson 870, with the stock inks, since 2000 and I had one 
clog on it, which was a result of leaving it with the heads unparked 
for a MONTH.  It took 5 cleaning cycles to clear and I have never 
had a clog since then.

I've had an Epson 2200 with the stock inks since January and I've 
never had a clog.

The impression I get from people here is that clogs and frequent 
head cleanings, windexing, head removal for cleaning, etc, are par 
for the course with 3rd-party inks.   I've never received a straight 
answer here when I've asked why the 3rd-party ink makers can't get 
their stuff as clog-free as the Epson inks.