通过命令提示符修改windows默认打印机
rundll32.exe printui.dll,PrintUIEntry /if /f %windir%\inf\ntprint.inf /r "LPT1:" /b "Epson LQ-1600K" /m "Epson LQ-1600K"
rundll32.exe printui.dll,PrintUIEntry /y /n "Epson LQ-1600K"
rundll32 printui.dll,PrintUIEntry /dl /n "Test Printer" /c\\SERVER 删除打印机