Invention Grant
- Patent Title: Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic device
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Application No.: US17162334Application Date: 2021-01-29
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Publication No.: US11586119B2Publication Date: 2023-02-21
- Inventor: Shinjiro Suzuki , Fengqiang Zhu , Masaru Takeuchi , Tomoki Hasegawa
- Applicant: FUJI ELECTRIC CO., LTD.
- Applicant Address: JP Kawasaki
- Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee Address: JP Kawasaki
- Agency: Rabin & Berdo, P.C.
- Priority: JPJP2020-035250 20200302
- Main IPC: G03G5/047
- IPC: G03G5/047 ; G03G5/06 ; G03G5/05

Abstract:
Provided are an electrophotographic photoconductor being resistant to abrasion even in long-term use, having highly sensitive electric characteristics, being capable of maintaining a high retention rate, and being capable of providing a stable image without filming, a method of manufacturing the same, and an electrophotographic device. The photoconductor includes an electroconductive substrate (1), a charge generation layer (3), and a charge transport layer (4); the charge transport layer contains a hole transport material, a resin binder, an electron transport material, and an inorganic oxide; the charge generation layer contains a charge generation material; the masses of the hole transport material, the resin binder, the electron transport material, and the inorganic oxide in the charge transport layer respectively denoted by a to d satisfy 1.5≤b/a≤5.7, 0.005≤c/a≤0.35, 0.05≤d/a≤0.70, a≥c+d, and c/d≥0.01; the hole transport material contains a compound expressed by formula (A-1); and the charge generation material contains titanyl phthalocyanine having an exothermic peak at 251±5° C., a half-value width of the exothermic peak equal to or less than 15° C., and a heating value equal to or greater than 1.0 mJ/mg when a temperature rise condition is 20° C./min in differential scanning calorimetry, and having an X-ray diffraction peak at 27.2±0.3°.
Public/Granted literature
- US20210271179A1 ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD OF MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC DEVICE Public/Granted day:2021-09-02
Information query
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