Two-sided Option to Print Is Greyed Out
I have an HP LaserJet M1217 that I've used for years with my iMac. Today, I went to print a document two-side, but the checkbox option for two-sided was no longer there. I did some research, and found it had been buried in the Layout dialogue. However, the two-sided option is greyed out.
The HP driver was recently updated. How do I get my two-sided printing back?
I'd love to have that simple checkbox back that turned two-sided printing on and off.
Thank you.
iMac 27", macOS 10.14