Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1991-09-20
1993-03-09
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 58, G03G 5047
Patent
active
051926334
ABSTRACT:
Disclosed is a laminate type photosensitive material for the electrophotography, which comprises a charge-generating layer and a charge-transporting layer, which are formed on an electroconductive substrate, wherein the charge-transporting layer comprises a first charge-transporting material having an ionization potential smaller than that of a charge-generating material used for the charge-generating layer and a second charge-transporting material having an ionization potential larger than that of the charge-generating material.
In this photosensitive material, by using a charge-transporting material having an ionization potential larger than that of the charge-generating material in combination with the charge-transporting material having an ionization potential smaller than that of the charge-generating material, a good residual potential can be maintained without disturbing injection of holes in the charge-transporting layer, the stability of the surface potential at the repeated use is improved and a good charging capacity can be attained.
REFERENCES:
patent: 4563408 (1986-01-01), Liu et al.
patent: 4743521 (1988-05-01), Hoffmann et al.
patent: 4971875 (1990-11-01), Gregory et al.
patent: 4988595 (1991-01-01), Pai et al.
Iwasaki Hiroaki
Kimoto Keizo
Sakuma Tadashi
Takemoto Hiroshi
Takesawa Youichi
Martin Roland
Mita Industrial Co. Ltd.
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