I, too, was told when I bought my new machine to never use canned air because it pushes the lint and stuff further back into other parts of the machine. I found a great solution-the Dirt Devil Kwik. It's a small (12" lon by about 4" wide) mini-vac. It has a little brush that can be attached and it reaches into narrow space. I also use it to clean my computer-another place not to use canned air. The Kwik was hard to find, not in any local stores. I ordered it on-line from the Dirt Devil website for about $20.00; probably could have gotten it for less by searching other sites. I'm really anal about cleaning my machine and this little vac was made for me !! LOL.
Hope this helps.