Epson R3000 black ink nozzles shooting blanks

Kurt Sonderegger wrote:

Thanks for the reply Bob. This morning I did another nozzle check and still nothing. I checked the ink level in the PK cart and it was fine so not knowing what else to try, I did another head cleaning and all but a couple nozzles were firing now:-) I did a second head clean and everything is back to normal now. I don't know how I could have had that many nozzles actually clogged with ink and I suspect it did have something to do with losing prime or getting air into the lines. I haven't had to do a head cleaning for many months now and maybe enough grime had collected to cause this problem. I'll probably never know but I am a little gun-shy about switching the black inks now. Fortunately I am using Inkjetcart inks and so the ink usage to do head cleans doesn't hurt so much.

Thanks again for the reply.

Kurt