This standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of portable electrostatic copier products. This standard is applicable to the design and manufacturing requirements and quality inspection of the whole machine product, without considering the technical requirements of its related network and connected equipment, as well as the responsibility for the installation and maintenance of the whole machine. This standard applies to dry developer, plain paper electrostatic copiers - portable copiers (hereinafter referred to as copiers). Other types of portable copiers can be used by reference.