I have a Janome 4000, definitely an older model, which is still being well used for sewing and quilting. I use Schmetz needles, Klasse needles and the universal needles you can get at JoAnn's, or even Wal-Mart. I have not had a problem, except that I need to remember to replace my needles more frequently, as I forget, especially if I'm not having a problem.