(19)
(11) EP 0 519 226 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.02.1993 Bulletin 1993/08

(43) Date of publication A2:
23.12.1992 Bulletin 1992/52

(21) Application number: 92108597.3

(22) Date of filing: 21.05.1992
(51) International Patent Classification (IPC)5: B41J 2/45
(84) Designated Contracting States:
DE GB IT

(30) Priority: 21.05.1991 JP 115091/91

(71) Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventor:
  • Tsuda, Shigeo, c/o Mitsubishi Denki K.K.
    Fukuyama-shi, Hiroshima (JP)

(74) Representative: Lehn, Werner, Dipl.-Ing. et al
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
81904 München
81904 München (DE)


(56) References cited: : 
   
       


    (54) LED array head type electrophotographic recording apparatus


    (57) In an LED array head type electrophotographic recording apparatus in which a latent image is formed on a photo-sensitive member (40) by light emitted from an LED array (1A), and is then developed into a visible image; the LED array comprises: a PN junction semiconductor (2 through 7) for emitting light; and a light blocking layer (8) formed in such a manner as to cover the light emitting surface of the PN junction semiconductor, and having a plurality of small holes 8a at predetermined intervals through which the light emitted from the PN junction semiconductor is passed in the form of light beams, and the distance between the LED array (1A) and the photo-sensitive member (40) is limited to a predetermined distance or less with which the light beams advancing through the small holes do not interfere with one another.









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