Originally Posted by
tessagin
I never use canned air on either of my machines. Can blow lint into areas you don't want to be there.
Canned air also causes vapor condensation which over time can cause problems with metal parts. I once heard a repair person say that even blowing into the machine with your mouth does the same thing and she has seen rust as a result. I take off the plate, take out the bobbin case and use a long handled paint brush to pick up any loose lint after each full bobbin used. I've found q-tips often push lint further in. My Janome has a center wick under the bobbin case which I put a drop of oil on if it begins to look dry. Like someone else said, this is the most expensive piece of machinery I own and I want it to last me a very long with minimum time in the repair shop.