^^^ Software update did the opposite for me!!! ^^^^
HP570
I updated and it has cost me nearly 2 days on a high volume (for us) print job. Onyx and the printer seem to get into spats. I have had files sit at 100% for nearly 10 minutes. Well when we are running 216, getting stuck for 10 minutes really hurts. I have found that restarting Onyx would help and it would print fine for a time, and then it would get stuck again. It would eventually print, but again 216 x 10... CRINGGEEE.
Another issue I noticed, I can't definitively tie this to the firmware update, is when the printer is looking for the registration line to print Side B on double sided prints, it will not find the line. This is even when I can verify that the reg. line did make it to the OMAS sensor. It was usually remedied by someone just selecting "retry."
We rely on being able to print overnight to complete this order, in our customer's time frame. So, it definitely goes without saying this really hurt us, or at least wore me out, it was good for my paycheck though. $$$$
I can't pinpoint this on the update however all the issues we have been happening weren't around before we updated...