http://www.morfon.com/cleaning-inkjet-ink/

How I can re-moisten the dry / clogged nozzles in the inkjet cartridge?
It is a Lexmark z611 and I refilled the cartridge an ink refill kit … Refill Kit came with something wet cleaning, a wet nap, worked very well in the wet to the injectors, but I had to take off on an errand and let it sit and nozzles at a dry film of tin back up again … Anyone know what the liquid is effective to return wetting the injectors?
The ink is water soluble. I use a soft damp cloth until the ink flows freely.
HP Printer Cartridges : How to Manually Clean an HP Ink-Jet Cartridge