12-01-2013 11:07 PM - edited 12-01-2013 11:08 PM
I just downloaded and installed the latest driver for this machine, upd-pcl6-x64-184.108.40.20648.exe released a few weeks ago. I found a problem and hope someone can verify and fix it later. That is, when I change the "Paper type:" to something other than "Unspecificed", I cannot print double-sided anymore. The step is really easy to reproduce, please let me know if I miss anything.
12-04-2013 11:15 AM
I am sorry, but to get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial product. You can do this at: http://h30499.www3.hp.com/t5/Printing-and-Digital-
I hope this helps!