I have a MacBook air and I installed everything that the instruction manual for my brand new printer said to install and everything was working correctly. I got on my computer last night and the Canon Quick Menu appeared on my toolbar. Now I'm unable to turn my computer off without "quitting Canon Quick Menu" which seems almost impossible to do at this point. I have tried just about everything and nothing is working. Please help.
So that the Community can help you better, we will need to know exactly which version of Mac OS your MacBook Air is running. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, our US-based technical support team is standing by ready to help 24/7 via email at http://Canon.us/SupportCF or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 10 AM and 10 PM ET (7 AM to 7 PM PT). We also encourage you to check out our Knowledge Base at that same link for answers to common questions.
Thanks and have a great day!