公开(公告)号：EP0592662A4

公开(公告)日：1992-08-18

申请号：EP90904692

申请日：1990-03-15

申请人： DAINIPPON PRINTING CO LTD

发明人： IIJIMA MASAYUKI DAI NIPPON PRI ,  DANTANI KYOJI DAI NIPPON PRINT ,  OBATA HIROYUKI DAI NIPPON PRIN ,  MATSUO MAKOTO DAI NIPPON PRINT ,  UTSUMI MINORU DAI NIPPON PRINT ,  TAKE SEIJI DAI NIPPON PRINTING

IPC分类号： G02F1/135 ,  G03G5/02 ,  G03G15/04 ,  G03G15/05 ,  G03G15/18 ,  G11B9/08 ,  G11B11/08

CPC分类号： G03G5/02 ,  G02F1/135 ,  G03G5/0202 ,  G03G15/04072 ,  G03G15/0435 ,  G03G15/05 ,  G03G15/18 ,  G11B9/08 ,  G11B11/08

摘要： The electrostatic data recording medium (110) of the invention comprises an electrode layer (113) and a charge-holding layer (111). The method of laminating the charge-holding layer (111) and the structure of the layer are improved. Further, the electrostatic data are converted into visible or positional data. Thereby, the medium has excellent characteristics of data holding, and the electrostatic data can be stored for a longer period of time. According to the electrostatic data recording method of the invention, the electrostatic data recording medium (110) is so disposed as to face a photosensitive member (1) having a photoconductive layer (9) on an electrode (7), image exposure is carried out while a voltage is applied across the electrodes (113) and (7), and electrostatic data corresponding to the image exposure are recorded in the electrostatic data recording medium (110). The electrostatic data recorded in the charge-holding layer (111) can be easily reproduced by reading the surface potentials, to amplify and output the signals, or by an electro-optical method, or by developing with toner. The electrostatic data recording medium (110) of the invention has storage capacity with a high data density of 8 x 10 bits/cm . The electrostatic data recording method which uses a photosensitive member makes it possible to accomplish two-dimensional data-recording, and to record analog, digital, picture, voice and (0, 1) data, and to realize the application electrostatic data recording cards, etc.