Ip 4300. Refilled tanks, but it doesnt look like cross-contamination. I suspect this is a color management problem, but I don't know where to start. All the articles seem endlessly complicated. Suggestions??
Quickest way to identify the cause of the problem is to replace your black ink cartridges with known good ones. There are two of them in ip4300. You will know quickly if your black ink cartridges are contaminated or not. Do a nozzle check and see if there is any problem shown in the text print.
Print this image (http://www.nifty-stuff.com/img/getimg/Fade_Test_Chart.jpg), scan it and post the results. Use the settings for high quality photo printing and photo paper. If possible, turn off all automatic corrections in the scanning software.