Ah...a veteran of Epson printers. I know whereof you speak. I used to print BW on an Epson 1280 with aftermarket (MIS) pigment inks. Forget it. When the machine worked the results were spectacular, but I finally couldn't deal with the clogged heads any longer. In all fairness to Epson, that printer wasn't really designed for pigment inks, but still...
Two years ago I got an HP B9180, which uses pigment inks, and after having made countless BW and color prints in that time I have never messed with the printer for maintenance reasons, except to change ink cartridges.
Cheers...
Rem