OK, thanks for your replies, I'll check the purge unit. I haven't checked that yet. And I looked the print head under the microscope and it doesn't seem that it is burnt. And it has color on it after performing cleaning cycle. And I have ink in the tanks. XD
I have Canon IP1500 and when I print nozzle check it prints only black, and it's perfect but none of the colors don't even show up, I thought it might be clogged so I tried cleaning with warm distilled water and some alcohol but it didnt help. And are the nozzles heated while using deep...