2 . device must be installed with optional printer kit 2 .机器上必须安装选配的打印机组件
2.
Information technology - method for the determination of toner cartridge yield for monochromatic electrophotographic printers and multi - function devices that contain printer components 信息技术.包含打印机组件的单色电子照相印刷机和多功能装置的调色剂盒打印量的测定方法
3.
Information technology - method for the determination of toner cartridge yield for monochromatic electrophotographic printers and multi - function devices that may contain printer components 信息技术.可能包括打印机组件的单色电子照相印刷机和多功能设备用着色盒打印量的测定方法