Hello. My name is***** can help you with your question. Can you please tell me some additional information about your problem? Were you able to connect with your MacBook air previously? Are there other printers connected? How do you currently have it connected? And, do you have the software installed from the disk that came with it or from the online download?
Thank you for the additional information, but there's that's still not clear. You mentioned that is plugged into your computer but you also mentioned that your computer is not connected to the printer.
I think you maybe just saying that you aren't able to print to it? But you do have a connected directly to the computer. If that's the case, please try plugging the printer into a different port on the computer.
It also sounds like you may not have the Canon software installed on your computer. If that's the case please go to the following link where you can download the solution menu software for your operating system. It should recognize your operating system is and is go to the page, but if it doesn't you can use the pulldown menu to select Yosemite.
OK. I proposed a phone call as additional service.