My Janome 6600 has suddenly started making crooked stitches. They look kind of like tiny zig zag stitches. Things I have tried:
Cleaned bobbin area, changed needle to new sharp point one, adjusted top tension, have same thread in top and bobbin. Have any of you had this issue? I hope it doesn't need repair. I take very good care of it. This is so frustrating. I hope someone can help fix the problem with advice.