I also have an ASUS laptop. I did have a problem with some downloads so I phoned Canon. They were most helpful and guided me through the procedure. Now I have to call them to find out how to scan. May be the same problem.
CANON CANADA TECHNICAL SUPPORT
1-800-OK CANON (652-2666**
CANON CANADA eSTORE
1-866-521-9965****
I called the Canada eStore.
Hope this helps.