Have you tried removing and cleaning the head? Some people have
successfully cleaned the head.

Art

Christopher Jones wrote:
On the nozzle check pattern, the light cyan and light magenta stripes
are completely missing. Have tried everything I can think of: nozzle
cleaning, nozzle deep cleaning, print head alignment, new ink tanks, new
print head, remove and reinstall drivers, but the problem persists.

Is there anything else I can try before consigning this printer to
oblivion?