故障现象一更换新胶片后,读数为零,报E4220错误。分析和维修E4220指示片盒2故障,错误内容:“The operation was not performed normally”。按操作说明,先按“Reset”键复位。复位无效,检查胶片是否正确安装。由于工作繁忙,操作者会将胶片上下或左右错置。通过检查胶片袋的印记和切口(胶片袋有向上及右对齐标记),可初步判断是否错装胶片。取密封板插入片盒,待片盒弹出,带至暗 Symptoms of a new film replacement, the reading is zero, reported E4220 error. Analysis and repair of E4220 indicator Cassette 2 error, error content: “The operation was not executed normally”. Press the operating instructions, press the “Reset” button to reset. Reset invalid, check the film is installed correctly. Due to busy work, the operator will be film up or down or left and right misplaced. By checking the film bag marks and incisions (film bags have up and right alignment mark), you can initially determine whether the wrong film. Take the sealing plate into the cassette, until the cassette eject, bring to the dark