Recently my HP 6975 Office Jet started streaking red in large printed areas of blue. Small items (like titles or very small color-filled areas) do not streak, but banners and such streak all the time now. My print quality test suggests cleaning the print heads, which I've done about 5 times. I replaced the cyan cartridge but got the same printed results. I also tried copying a "good" page but the copy had the streaks (while the original did not). Other than getting an out-of-warranty printer serviced, is there anything else I should try?
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