Yesterday I ran a test print on my IP7250, which I had forgotten to use for a few weeks, and found that, while the light and medium magenta stripes looked fine, there were light bands in the dark magenta stripe. I did a deep clean, turned the machine off, and then turned it back on again today and did another deep clean. However, the test print I did afterwards shows no improvement..
Are there any further steps I can take that might resolve the problem?