Electrophotographic photoreceptor and production method thereof

Details Electrophotographic photoreceptor and production method thereof Electrophotographic photoreceptor and production method thereof

2005-03-22

2005-03-22

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

C430S058050, C430S133000

Reexamination Certificate

active

06869740

ABSTRACT:
An electrophotographic photoreceptor, in which the increase of VL is controlled below 15 V by controlling the content ratio M (ppm) of a charge transporting material CTM2to a charge transporting material CTM1within a specific range, wherein the ionization potential Ip(2) of the CTM2is smaller than the ionization potential Ip(1) of the CTM1in the constituent of the photosensitive layer, and thereby the electrophotographic photoreceptor has only a little reduction of image concentration. A method for producing an electrophotographic photoreceptor having ΔVL which is controlled below 15 V, wherein, in a case where the ionization potential of the charge transporting material used in the previous run of production is small, ΔVL can be set below 15 V by using, in the next production, a dip coating liquid, which comprises, as a constitutive material, a charge transporting material in which the difference between the ionization potential of the current material and that of the previous material is set below 0.25 eV.

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patent: 09-230614 (1997-09-01), None

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