Epson p700 print head alignment problem

[Lynnea1941]

I have done several print head alignment sheets. The first row just never changes. It doesn't matter what number I use for the "best" square, the result is always the same and all the squares look alight.

I am in email conversation with Tech Support, and I will be doing my third round doing the print alignment. I do see changes in several rows, just not the first row.

Any suggestions?

Thanks.