icingimages gold label ink cartridges do not have sponges in them. Take the red cartridge out and give it a little squeeze over some paper towels and see if that helps. Call Debbie, I'm sure she can solve your problem.
Here's a link to their site http://www.silhouetteamerica.com/selectASilhouette.aspx If you buy it from Linda McClure she has a special housing and blade for cutting gumpaste. She also has utube videos on using it.