note to Brother users: use a good quality artist's flat brush to clean the bobbin area and not the flimsy brush that comes with your machine. my Brother kept throwing an E6 error message and no matter how many times I cleaned the bobbin area and rethreaded the machine I still got the message. let it set a few months and did some research and found the suggestion about the artist's brush. it found a teeny, tiny piece of a broken needle that the machine brush never found in all the cleanings I did. My little Brother runs like it's brand new again. I am one happy quilter again.