Multi-layer electrophotographic photosensitive member, process cartridge, and image forming apparatus
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United States of America Patent
Stats
-
Apr 3, 2018
Issued Date -
N/A
app pub date -
Aug 25, 2016
filing date -
Aug 31, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multi-layer electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer includes a charge generating layer and a charge transport layer. The charge generating layer contains a charge generating material. The charge transport layer contains a hole transport material and a binder resin. The charge generating material contains a titanyl phthalocyanine that exhibits a main peak at a Bragg angle (2θ±0.2°) of 27.2° in a CuKα characteristic X-ray diffraction spectrum. The hole transport material contains a triarylamine derivative represented by generic formula (1). The hole transport material has a mass ratio of at least 0.30 and no greater than 0.55 relative to the binder resin in the charge transport layer. In general formula (1), R1, R2, l, and m are the same as those defined in the specification.
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International Classification(s)
- 2016 Application Filing Year
- G03G Class
- 2954 Applications Filed
- 2640 Patents Issued To-Date
- 89.38 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G03G Class
- 0 % this patent is cited more than
- 7 Age
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