From time to time, usually when I'm printing large quantities of prints, the prints will go from the correct color to having a moderate magenta cast to the photographs. Sometimes resetting the printer works...for a while. Other times nothing works and I end up shutting it off for several days. Usually when I start it up again it's fine.
Another method I try is performing head and nozzle cleaning. This sometimes works too. Now none of these things are working. Any suggestions??? Thanks!!