each day, before i shut down, whether i've printed or not, i wipe the edge of my capping station with butyl carbitol (a solvent/glycol ether that just will not evaporate ever) and wipe off my wiper. every few days i dump a little solution down the caps/cap for jv33 to really loosen up the pumps. most problems start with a clogged pump, unconditioned caps, or a dirty wiper scraping residue back into the head. about once a week, clean around the base edge/bottom of the heads. do that and you will never have an issue.