Printer Inspector Reports Problems

I've just downloaded the trail version of Print Inspector. I've mapped all my network printers to my test box. There are approximately 15 printers that I currently have mapped. I noticed that users are printing to printers yet when I view the history for the monitored printer it is empty. Does Print Inspector need to be installed on the print server directly to work efficiently?

Yes, ideally it should be installed on the print server(s). Otherwise it may not log some jobs or even don't log jobs at all. This highly depends on the network configuration and printers.

i install printer inspector properly. but in history page it shows more print then i given. it shows double print in history page. if i give print of one page it shows 2 pages. so kindly send me proper soultion.

This a well know problem, but there is no solution. Unfortunately, Print Inspector is a highly hardware (printer) dependent product, with some printers it works fine, but with some it does not. That is why it is important to give the trial software a good test.
In your case, the printer driver reports the job as zero page or wrong number pages that results incorrect records. Sorry, but we can't fix that