cross-contamination

hello, I'm an owner of Epson ECOTANK ET-7750, and I'm really confused about my problem. printer started to have some ink "contamination" on magenta and some time on yellow other colors. both at the same time these colors are prone to have some nozzle issue. meanwhile others rarely have. this is...

Greetings! I'm a newbie, though I've been lurking for several months. This IP3000 is new to me as of around March 2017, though it's moderately well-used -- about 4600 pages. The drain sheet is over 70% full. Purge count when I got it was M=8, R=10, T=624 (!), D=1, C=26. I'm still using...