Spool or Print Directly

My little experience. This make our application which running on Windows Server 2003 became unstable and we request support from Developer team from regional.It started from Intermec barcode printer which failed to print after 2-3 times printing. We have to turn the printer off then turn it after 2nd or 3rd printing to make sure printing process done smoothly. The application team suspect windows spooling problem, they change the Spool option to Print directly to the printer.
After Intermec printer firmware upgraded to 10.3.1 the printer run normal. But another problem came when users make wrong printing to turned off printer. The application is hang. Event viewer show "Application Hang" without no additional information. After investiges, we have conclusion: Dont use "Print directly to the printer" option if your printer turn off at night. Because Windows will send the command to the printer directly and it will wait until printing process done, if the printer cannot be reach, the application will wait forever. To stop this problem, you can stop the restart spooling service.

One day before... We have prepare to reinstall the whole... starting from the scratch... luckily we found the user which sent the wrong print job.

Wis wae...