You might think it’s better to use the latest standards. Well, in this case it’s not.
Windows 7 x64 (64-bit) with HP Laser Jet 3600n is a nice combination when using the HP Universal driver for Windows 7
Most of things works fine except when it comes to pure pictures or graphics, then you may face the following symptom
A blank paper, followed by another paper with these lines on it:
PCL XL error
Subsystem: KERNEL
Error: IlleagalTag
Operator: 0x?? or Operator: VendorUnique
Position: 3 or 5 or 15 or may be something else (I think this depends on the application you’re printing from and the document content)
However, the solution for me was simply downloading the Vista x64 driver and use it.