I am having intermittent issues printing some PDF pages that use more than one font. Like in the image below some text lines may print out as bold black lines. Next time I print it may print out just fine. The same issue on different computers printing to different HP LaserJet printers using PCL6 driver. Running Adobe Reader 10.0.1 on Windows XP SP3. The firmware on the printers and drivers are up to date. It seems it started after update to Adobe 10.0.1 from 9.4.