The field for inserting the last printing date into the document is not updated just before printing a page, but only afterwards. That means the date shown on the last print-out is not the actual printing date but lies somewhere in the past. This field works correctly in OOo.
[This is an automated message.] This bug was filed before the changes to Bugzilla on 2011-10-16. Thus it started right out as NEW without ever being explicitly confirmed. The bug is changed to state NEEDINFO for this reason. To move this bug from NEEDINFO back to NEW please check if the bug still persists with the 3.5.0 beta1 or beta2 prereleases. Details on how to test the 3.5.0 beta1 can be found at: http://wiki.documentfoundation.org/QA/BugHunting_Session_3.5.0.-1 more detail on this bulk operation: http://nabble.documentfoundation.org/RFC-Operation-Spamzilla-tp3607474p3607474.html
The Last printed field works as expexted in LO 3.5.1.2. So the bug seems to be resolved.