Do you have any HP Printers that are using the Windows LaserJet Family Driver and they are only printing 1 page no matter how many copies you select? Disabling Mopier mode (which is enabled by default) fixes the problem.  We have seen this problem in XenApp 6 and 6.5.

Steps to fix:
1. Start > Devices and Printers
2. Right Click Printer >Printer Properties
3. Click “Device Settings” tab
4. Scroll to bottom of page and change “Mopier Mode” to Disabled under the “Installable Options” group