Digital BW, The Print

I have an 1160 that I have not been using. Yesterday I tried using 
it and found the black ink cartidge empty, although it was full a 
few months ago. I replaced it and ran a nozzle check and every 
thing was ok. Today I tried a nozzle check and no black ink 
printed. I removed the cartridge and it also is empty. 
It appears ink is leaking from the cartridges. Any suggestions??