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US 9,541,849 B2Granted
Positively chargeable single-layer electrophotographic photosensitive member and image forming apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorsTomofumi Shimizu, Hiroki Tsurumi, Yohei Yamamoto, Eiichi Miyamoto
Life of this patent
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Abstract
A positively chargeable single-layer electrophotographic photosensitive member includes a single-layer photosensitive layer. The single-layer photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The electron transport material contains two or more compounds selected from the group consisting of compounds represented by the chemical formulas (1) to (4) below.
Claims7
A positively chargeable single-layer electrophotographic photosensitive member comprising:
- a conductive substrate;
- and
- a single-layer photosensitive layer over the conductive substrate, wherein
- the single-layer photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin,
- the electron transport material contains a first compound and a second compound, and
- the first compound is represented by the chemical formula ETM-3 and the second compound is represented by one of the chemical formula ETM-7, the chemical formula ETM-8, and the chemical formula ETM-5, or
- the first compound is represented by the chemical formula ETM-5 and the second compound is represented by one of the chemical formula ETM-7 and the chemical formula ETM-8:
4 more elements
Dependencies are inferred from the claim text.