Positive charging single-layer type electrophotosensitive materi

Details Positive charging single-layer type electrophotosensitive materi Positive charging single-layer type electrophotosensitive materi

2000-04-21

2000-11-28

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

399159, G03G 509

Patent

active

061533440

ABSTRACT:
The present invention relates to a positive charging single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer provided on the conductive substrate, said photosensitive layer comprising an electron charge generating material, a hole transferring material, an electron transferring material and a binder resin, wherein a mobility of the hole transferring material at an electric field strength of 5.times.10.sup.5 V/cm is not less than 1.times.10.sup.-5 cm.sup.2 /V/sec and the electron transferring material has a mobility of not less than 1/20000 and not more than 1/10 relative to that of the hole transferring material. Said positive charging single-layer type photosensitive material has a sufficient sensitivity even when used in a high-speed image forming apparatus capable of taking 50 or more copies of a A4-size original.

REFERENCES:
patent: 5240802 (1993-08-01), Molaire et al.
patent: 5492784 (1996-02-01), Yoshkawa et al.
patent: 5968697 (1999-10-01), Tomiuchi et al.
patent: 5989766 (1999-11-01), Jeong et al.

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