mf743cdw not printing 2 sided

[cathid]

I have set up every place I can find to default to 2 sided printing and it keeps printing on one side. How do I fix this?

[rs-eos]

What computer and operating system are you using?  What documents are you attempting to print, and in what applications are you using to print them?

[Stephen]

Hello!
So that the Community can help you better, we will need to know more information:
• Do you see any error messages?
• Which version of Windows or macOS are you using?
• How do you connect to your printer (USB or WiFi)?

Any other details you'd like to give will only help the Community better understand your issue.

If you're in the United States, and this is an urgent support need, please click HERE to visit your My Canon Account to discover your personalized support options.

If you're outside the USA, please click HERE to find support options in your country.

Thanks, and have a great day!