Image forming apparatus

  • Inventors:
  • Assignees: Canon Inc
  • Publication Date: September 09, 1980
  • Publication Number: JP-S55117159-A


PURPOSE:To obtain the image forming apparatus which is capable of readily performing combining of two original pictures and their erasing by forming the charge images corresponding to the latent images of a screen-form photoreceptor on the latent images on a face-form photoreceptor. CONSTITUTION:The original picture of the 1st original platen 22 is exposed onto a screen-form photoreceptor 1 and the secondary latent images corresponding to the latent images formed are formed on the second photoreceptor 29 by corona dischargers 15, 16, full surface exposure lamp 17 and modulating corona discharger 18. Also, the original picture on the 2nd original platen 45 is exposed to the 2nd photoreceptor 29 and the latent images are formed by a discharger 34 and exposure lamp 35. Thence, the two informations on the second photoreceptor 29 are turned to sensible pictures by a developing device 36 and in the next transfer part, the transfer is completed to transfer paper 37 by a corona discharger 38. Thereby, various combining and erasing may be accomplished without blanking out the picture images and beforehand printing frames for the purpose of combining which have hitherto been done.




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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    JP-S561961-AJanuary 10, 1981Ricoh Co LtdElectrophotographic superposed image forming method and its device