PCL6 Error

I have a user that is experiencing a problem printing large jobs. The user printed an 80 page job, but the printer out printed out 51 pages then spit out a sheet with the following on it:

PCL6 Error – Incomplete Session by time out
Position : 0x816000 (8478720)
System : XLPGP/os_hook
Line : 2033
Version : PCL6 3.46 06-10-2005

The printer is a Xerox Phaser 3500 and the print job is being sent over the LAN. I have no idea what would be causing this and any input would be greatly appreciated.