NAS Error when print NAV report ,warning winspool NE02

Hi all

We use NAV 2009 R2, and windows server 2003 sp2. I found error when the NAS want to print Sales Shipment.

I install the Driver Printer for Epson LQ300+, Printer selection, set default printer, but it is still can not print.

always warning  error : "You Can Not Print  to <share printer name > , winspool ne02 ". I tried to restarts the server , sometime it can print the NAV Report , but sometime it is error. we use 4 NAS services in same server 2003 .

is there anyone can help , how to fix this problem ?

thank you

Alfian