I have an attachment that fits onto my normal vacuum cleaner hose. I use it to clean my machine(s) often.
We are told that we should not use compressed air to blow out all the lint, and this attachment sucks out all the lint, and my machines do sound much better after I've cleaned them. I vacuum whereever I can.
If you are interested in the attachment do a search on Amazon for Micro Vacuum Attachment Kit. That isn't where I got mine (I like to support local quilt stores), but you'll be able to see what it looks like.
Hope this helps. And, remember to oil. Machines like that. (I guess you can tell I don't have a computerized machine -- they might not like it so much, I'm not sure)
amh