Naming convention

[Ronc00]

Does anyone know if you can change the file naming convention in PageWide scanning? I realize you can change the file name, but there is an automatic addition to the file name which I believe is the number of scans the machine has made. I'm looking to make it ex. PT_001, PT_002, PT_003. If I enter PT as my file name, the scanned file is made PT0324-001. Any help would be greatly appreciated. Thank you!