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US 8,475,982 B2Granted
Charge-transporting compound, electrophotographic photoreceptor, image-forming apparatus, and process cartridge
AssigneeFuji Xerox Co., Ltd.
InventorsMasahiro Iwasaki, Katsumi Nukada, Wataru Yamada, Kenji Yao
Life of this patent
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Abstract
An electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer, wherein the photosensitive layer comprises a functional layer that comprises at least one of a first compound represented by formula (I); and a second compound derived from the first compound: wherein F represents a hole-transporting, n-valent organic group; R independently represents an organic group having from 1 to 18 carbon atoms; T represents a divalent group; m indicates 0 or 1; and n indicates an integer of from 1 to 4.
Claims23
An electrophotographic photoreceptor comprising:
- a conductive support;
- a photosensitive layer comprising a charge generating layer and a charge transporting layer;
- and
- a functional layer over said photosensitive layer that serves as a protective layer, the functional layer comprises a curable resin and at least one of:
- a first compound represented by formula (I);
- and a second compound derived from the first compound:
- wherein F represents a hole-transporting, n-valent organic group;
- R independently represents —CH2—R4 or —(CH2)r—O—R5, where
- R4 represents a C1-C17 organic group,
- R5 represents a C1-C6 hydrocarbon group, and
- r represents an integer from 1-12;
- T represents an alkylene group;
- m indicates 1;
- and
- n indicates an integer of from 1 to 4,
- wherein the functional layer has a cross-linked structure formed by a crosslinking reaction between the curable resin and at least one of the first compound represented by formula (I) and the second compound derived from the first compound.
13 more elements
An image-forming apparatus comprising:
- an electrophotographic photoreceptor comprising:
- a conductive support;
- a photosensitive layer comprising a charge generating layer and a charge transporting layer;
- and a functional layer over said photosensitive layer that serves as a protective layer, the functional layer comprises a curable resin and at least one of:
- a first compound represented by formula (I);
- and a second compound derived from the first compound;
- a charging device that charges the electrophotographic photoreceptor;
- an exposing device that exposes the charged electrophotographic photoreceptor to light to form an electrostatic latent image thereon;
- a developing device that develops the electrostatic latent image to form a toner image;
- and
- a transfer device that transfers the toner image onto a transfer medium,
- wherein F represents a hole-transporting, n-valent organic group;
- R independently represents —CH2—R4 or —(CH2)r—O—R5, where
- R4 represents a C1-C17 organic group,
- R5 represents a C1-C6 hydrocarbon group, and
- r represents an integer from 1-12;
- T represents an alkylene group;
- m indicates 1;
- and
- n indicates an integer of from 1 to 4,
- wherein the functional layer has a cross-linked structure formed by a crosslinking reaction between the curable resin and at least one of the first compound represented by formula (I) and the second compound derived from the first compound.
18 more elements
A process cartridge comprising:
- an electrophotographic photoreceptor comprising:
- a conductive support;
- a photosensitive layer comprising a charge generating layer and a charge transporting layer;
- and a functional layer over said photosensitive layer that serves as a protective layer, the functional layer comprises a curable resin and at least one of:
- a first compound represented by formula (I);
- and a second compound derived from the first compound;
- and
- at least one selected from:
- a charging device that charges the electrophotographic photoreceptor;
- a developing device that develops an electrostatic latent image formed through exposing the charged electrophotographic photoreceptor to form a toner image;
- and a cleaning device that removes a toner that remains on the electrophotographic photoreceptor after transfer,
- wherein F represents a hole-transporting, n-valent organic group;
- R independently represents —CH2—R4 or —(CH2)r—O—R5, where
- R4 represents a C1-C17 organic group,
- R5 represents a C1-C6 hydrocarbon group, and
- r represents an integer from 1-12;
- T represents an alkylene group;
- m indicates 1;
- and
- n indicates an integer of from 1 to 4,
- wherein the functional layer has a cross-linked structure formed by a crosslinking reaction between the curable resin and at least one of the first compound represented by formula (I) and the second compound derived from the first compound.
18 more elements
An electrophotographic photoreceptor comprising:
- a conductive support;
- a photosensitive layer comprising a charge generating layer and a charge transporting layer;
- and
- a functional layer over said photosensitive layer that serves as a protective layer, wherein
- the functional layer comprises a curable resin and at least one of:
- a first compound represented by formula (I), and a second compound derived from the first compound:
- wherein F represents a hole-transporting, n-valent organic group;
- R independently represents —CH2—R4 or —(CH2)r—O—R5, where
- R4 represents a C1-C17 organic group,
- R5 represents a C1-C6 hydrocarbon group, and
- r represents an integer from 1-12;
- T represents an alkylene group;
- m indicates 1;
- and
- n indicates an integer of from 1 to 4;
- and
- the functional layer has a cross-linked structure comprising the at least one of the first compound represented by the formula (I) and the second compound derived from the first compound, and the curable resin bonded to the at least one of a first compound represented by the formula (I) and the second compound derived from the first compound.
14 more elements
Dependencies are inferred from the claim text.