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US 11,150,567 B2Granted
Electrophotographic photoreceptor, process cartridge, and image forming apparatus
AssigneeFUJIFILM Business Innovation Corp.
InventorsKota Maki, Masahiro Iwasaki, Kenji Kajiwara
Life of this patent
Estimating the term…
Abstract
An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is disposed on the conductive substrate and contains metal titanate compound particles, an electron transporting compound, and a binder resin; and a photosensitive layer on the undercoat layer.
Claims9
An electrophotographic photoreceptor comprising:
- a conductive substrate;
- an undercoat layer on the conductive substrate,
- wherein the undercoat layer contains metal titanate compound particles, an electron transporting compound, and a binder resin;
- and
- a photosensitive layer on the undercoat layer,
- wherein a total content of the metal titanate compound particles contained in the undercoat layer relative to a total content of the electron transporting compound contained in the undercoat layer is 5 mass % or more and 50 mass % or less,
- wherein the electron transporting compound contains at least one perinone compound selected from the group consisting of a compound represented by general formula (1) below and a compound represented by general formula (2) below:
- in general formula (1), R11, R12, R13, R14, R15, R16, R17, and R18 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an aryl group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, or a halogen atom;
- R11 and R12 may be bonded to each other to form a ring, so may R12 and R13, and so may R13 and R14;
- and R15 and R16 may be bonded to each other to form a ring, so may R16 and R17, and so may R17 and R18, and
- in general formula (2), R21, R22, R23, R24, R25, R26, R27, and R28 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an aryl group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, or a halogen atom;
- R21 and R22 may be bonded to each other to form a ring, so may R22 and R23, and so may R23 and R24;
- and R25 and R26 may be bonded to each other to form a ring, so may R26 and R27, and so may R27 and R28.
10 more elements
An electrophotographic photoreceptor comprising:
- a conductive substrate;
- an undercoat layer on the conductive substrate,
- wherein the undercoat layer contains metal titanate compound particles, an electron transporting compound, and a binder resin;
- and
- a photosensitive layer on the undercoat layer,
- wherein a total content of the electron transporting compound relative to a total solid content of the undercoat layer is 30 mass % or more,
- wherein a total content of the metal titanate compound particles contained in the undercoat layer relative to the total content of the electron transporting compound contained in the undercoat layer is 5 mass % or more and 50 mass % or less, and
- wherein the electron transporting compound contains at least one perinone compound selected from the group consisting of a compound represented by general formula (1) below and a compound represented by general formula (2) below:
- in general formula (1), R11, R12, R13, R14, R15, R16, R17, and R18 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an aryl group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, or a halogen atom;
- R11 and R12 may be bonded to each other to form a ring, so may R12 and R13, and so may R13 and R14;
- and R15 and R16 may be bonded to each other to form a ring, so may R16 and R17, and so may R17 and R18, and
- in general formula (2), R21, R22, R23, R24, R25, R26, R27, and R28 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an aryl group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, or a halogen atom;
- R21 and R22 may be bonded to each other to form a ring, so may R22 and R23, and so may R23 and R24;
- and R25 and R26 may be bonded to each other to form a ring, so may R26 and R27, and so may R27 and R28.
11 more elements
Dependencies are inferred from the claim text.