Great to see you today, glot,
Allow me to join the conversation and add additional information about printing W-2 forms in QuickBooks Online.
Our Support Team haven't yet communicated any an ongoing issues reported about the forms not printing correctly. In the meantime, you can use the Fit to page scaling option. This automatically fits or resizes texts or images you want to print to the paper size you select in the when printing. (Please see screenshot attached.)
Once done, try printing this in a blank paper and see if it works. If not, let's make sure your PDF reader is updated. Please check out this article for more instructions about updating your PDF reader: How to Update, Repair, or Re-install Adobe Reader/Acrobat
However, if you're still getting the same hurdle, you may want to follow this article on how to troubleshoot printer problems in Windows: Troubleshoot Printer Problems in Windows
Please keep me in the loop on how this goes, glot. I want to make sure you're all set. Have a good one!