Electrophotographic printing process using photochromic compound
    6.
    发明授权
    Electrophotographic printing process using photochromic compound 失效
    使用光致变色化合物的电子照相印刷工艺

    公开(公告)号:US4883733A

    公开(公告)日:1989-11-28

    申请号:US219932

    申请日:1988-07-15

    IPC分类号: G03G5/02 G03G5/00 G03G15/05

    摘要: An electrophotographic printing process is disclosed that comprises the steps of: imagewise exposing a photosensitive means with light of a wavelength at which photochromism occurs, to thereby record the image therein, wherein said photosensitive means has a photosensitive layer formed on a conductive support, said photosensitive layer containing a photochromically sensitive compound that shows photoconductivity when irradiated with light of different wavelengths before and after said photochromism occurs; charging the entire surface of said photosensitive layer; and uniformly exposing said photosensitive means with light of a wavelength at which photochromism does not occur, but at which said photochromically sensitive compound or photoisomeric compound therewith shows photoconductivity, to thereby form the image of a charge pattern on the surface of said photosensitive layer.