Suddenly no ink coming from five wells (BK, R, G,

I have the same problem but it's only with the black ink, I removed the print head unit and run it under the hot tap till th ewater ran clear, then i soaked it in hot water and again run fresh water through it till it ran clear then left it in a bath of alcohol, i just used whiskey, but wouldn't recommend drinking it after, or before for that matter, I felt there was nothing to lose if it was a faulty print head as they are about £95 new. I had already run several deep cleaning programs and replaced the inks, but literally no black ink at all was printing. I havn'e tried it yet as it's still soaking, but I have also stripped the cover off the priinter and am trying to clean otu the waste ink tanks and absorbant pads, it's far to expensive a printer to just chuck out so here's hoping

Brian.