problem:
A HP printer prints only one copy of a job when multiple copies are requested.
Seen on HP LaserJet 1300 and 4 series printers. Possibly affects all HP printers using the universal Windows 7 driver.
solution:
Open Devices and Printers, right click on the printer and right click on Printer Properties
Click Device Settings tab
Set "Mopier" and "Job Storage" options both to disabled.