We've just recently installed QuickBooks Desktop 2024.  I'm trying to print the first check and keep getting this same issue.  I've done everything you outlined ... but cannot get the "double sided" switch to activate.  It is showing in the 'on' position ... but grayed out so I can't get to it.

I've tried the process of bringing up a report and going through the printer layout ... no luck.

I've confirmed that my software is the latest update.

I've verified data and getting confirmation that data is good.

Attached screen shot shows what I can see for check printing ... I see the same thing when I'm trying to print reports.  Can't get the 'double sided' switch to go active so I can turn it off.

Checks print fine for another company that is set up in QuickBooks Online ... but not printing for two smaller companies that we have on QB Desktop 2024.  

Thanks for any assistance.