That would be my guess.I don’t have an Ink Flush option. Is it the same as System Cleaning?
Sounds like you didn't watch either video in my last post.I don’t know what would be the difference with the syringes method.
That would be the way to go if you cannot do it by your monitor. Both methods were in the videos I posted before.I could try doing a Deep Cleaning or System Cleaning directly with the printer buttons, without the software.