该文件常见出现的位置

版本	位置
2.27.2.10	\WINDOWS\system32\spool\drivers\w32x86\3
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0419
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\041D
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0413
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0414
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\041F
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0412
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0410
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0804
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0401
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0816
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\040e
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\041E
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0421
2.27.2.10	\ProgramData\CanonBJ\IJPrinter\CNMWindows\CanonMX320seriesPrinter\LanguageModules\0411

一、如果您的系统提示“没有找到CNMsr9O.dll”或者“缺少CNMsr9O.dll”等类似错误信息，请把CNMsr9O.dll下载到本机
二、直接拷贝该文件到系统目录里：
　 1、Windows NT/2000系统，则复制到C:\WINNT\System32目录下。
2、Windows XP/Vista/Win7/8系统，则复制到C:\Windows\System32目录下。
三、然后打开“开始-运行-输入regsvr32 CNMsr9O.dll”，回车即可解决错误提示！