Hi,
I have never used this tip, but it sounds like it might work. This is 
from www.inksell.com

Trouble shooting guide

   1. *Does not print out at all or does not print out all colors*--

      This can happen when dried ink clogs the nozzle. Gently blot the
      print head with a damp and lint-free towel to clean away the
      clogged ink. If the cartridge still won’t print, soak the nozzle
      area (bottom of the cartridge) in warm water for several minutes.
      To do this, place the cartridge in a white Styrofoam cup
      (Styrofoam is soft and will not damage the cartridge nozzle) and
      fill with water until the cartridge is halfway submerged. If the
      cartridge still does not print, leave the cartridge in the cup of
      water overnight and try again.

      If the cartridge contains foam after refilling, it may take a few
      minutes for the ink to settle. Place the cartridge in its cradle,
      wait 15-20 minutes, and try gain. If the printer still does not
      work, your cartridge may be damaged and needs to be replaced.

Hope this helps.
Sue

              The NOSPIN Group is now offering Free PC Tech
                     support at our newest website:
                          http://freepctech.com