I really think your bobbins are too small. They should never bounce around.
I have two Janome's (the 6600 and the Platinum Gem and love them both)
Originally Posted by sherry mcd
The bobbins don't stay solidly in place like they should. They sort of bounce up and down. I do get the Error messages often. Then I remove the throat plate and clean the lint out. A real pain. I may have "new machine fever" because I also have "new car fever". Thanks.