公开(公告)号：AU513815B2

公开(公告)日：1981-01-08

申请号：AU3759178

申请日：1978-06-29

Applicant: MITA INDUSTRIAL CO LTD

Inventor： FUKUDA H ,  MORIKAWA H ,  KAMEZAWA Y ,  AIZAWA T

IPC: G03G5/14 ,  D21H19/00 ,  G03G5/00 ,  G03G5/10

Abstract: A photosensitive paper for electrophotography comprising a paper substrate, an electrophotographic photosensitive layer formed on one surface of the substrate and an electrically conductive coating layer formed on the other surface of the substrate, which electrically conductive coating layer comprises an electrically conductive binder medium and a fine powder of a fluorine resin distributed predominantly in the surface portion of the electrically conductive coating layer, is disclosed. This photosensitive paper is satisfactory in all of the following properties; adaptability to the paper feeding operation, the scratch resistance of the photosensitive layer, the blocking resistance and electric characteristics irrespective of the humidity conditions in the operation atmosphere.

公开(公告)号：US3821113A

公开(公告)日：1974-06-28

申请号：US29771272

申请日：1972-10-16

Applicant: MITA INDUSTRIAL CO LTD

Inventor： MORIKAWA H ,  NAGAHASHI K ,  AIZAWA T

IPC: G03G9/13 ,  G03G9/04

CPC classification number: G03G9/13

Abstract: A liquid developer for electrophotography comprising particles of an image forming material selected from dyestuffs, pigments and powdery metals dispersed in a composite dispersion medium comprising a liquid carrier of high electric resistance and an asphalt extract which is at least substantially completely dissolvable in the liquid carrier and which is obtained by extracting an asphalt with a saturated hydrocarbon liquid, in which the image forming material particles are charged negatively by the dispersion medium, thereby giving a reverse visible image in the case of a negative electrostatic latent image or a nonreverse visible image in the case of a positive electrostatic latent image.