Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
T he version of microsoft windows you have is important.. But most likely, if its a brand new dell you have windows 10.
So. lets try downloading and installing the software for your Canon Pixma.. Go to this link
on that page, under your printers picture in the download and driver section, click the drivers tab
Then, click select to the right of the "Mx 450 series mp driver"
It will then let you download the mx 460 driver.. Once downloaded, open and run that file.. This will guide you through connecting and installing the printer and you should be good to go.
If you get stuck or run into any issues at any point please reply here so I can assist you further.. Otherwise, if all goes well and you are able to print please remember to return here and click and submit a 5 star rating to show I was able to help you.