Digital BW, The Print

I've run so many clean cycles that I have consumed half of the ink on my cartridges.  I 
am using OS X (if that helps).  I had not printed a single sheet in 2 months.

Someone please throw me a rope (not so I hang myself).

Thanks.

PS: I went through 4 cartridges last night.  I searched the SSC software but it's WIN 
only.  Help!!!!!