摘要:
A method of manufacturing an image bearing member including forming a charge generation layer overlying an electroconductive substrate, forming a charge transport layer overlying the charge generation layer, the charge transport layer including a charge transport material having a molecular weight of from 600 to 900 and a binder resin, and forming a protection layer overlying the charge transport layer by applying a liquid application containing a polymerizable compound having a charge transport structure, a polymerizable compound having no charge transport structure, a filler, a polycarboxylic acid compound, and cyclopentanone and curing the polymerizable compound having a charge transport structure, and the polymerizable compound having no charge transport structure.
摘要:
A method of manufacturing an image bearing member including forming a charge generation layer overlying an electroconductive substrate, forming a charge transport layer overlying the charge generation layer, the charge transport layer including a charge transport material having a molecular weight of from 600 to 900 and a binder resin, and forming a protection layer overlying the charge transport layer by applying a liquid application containing a polymerizable compound having a charge transport structure, a polymerizable compound having no charge transport structure, a filler, a polycarboxylic acid compound, and cyclopentanone and curing the polymerizable compound having a charge transport structure, and the polymerizable compound having no charge transport structure.
摘要:
An image bearing member including an electroconductive substrate, a photosensitive layer overlying the electroconductive substrate, and a protection layer overlying the photosensitive layer, the photosensitive layer containing a diamine compound represented by the chemical structure 1, more of the diamine compound being disposed on the photosensitive layer side than the surface side relative to the midpoint in a depth direction of the protection layer: where X represents a substituted or non-substituted arylene group, or a compound represented by a chemical structure 2: where R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, where A1, A2, A3, and A4 independently represent an alkyl group having 1 to 4 carbon atoms, a substituted or non-substituted aryl group, or —CH2(CH2)mZ, where Z represents a substituted or non-substituted aryl group, a substituted or non-substituted cycloalkyl group, and a substituted or non-substituted heterocycloalkyl group, and m represents 0 or 1, and where B1 and B2 represent —CH2—, —CH2CH2—, —CH2—Ara—, —Ara—CH2—, —CH2CH2—Ara—, and —Ara—CH2CH2—, and Ara represents a substituted or non-substituted arylene group.
摘要:
An image bearing drum having a hollow cylinder sleeve member; a photosensitive layer; a protective layer having fillers; and flange members, each of which has an attachment unit, a shaft hole unit, and a linking unit, wherein the surface of the protective layer having waviness has an arithmetical mean deviation of an assessed profile Wa (μm) of from 0.050 μm to 0.400 μm and a mean width of profile elements WSm (mm) of from 0.500 mm to 1.500 mm, and wherein the linking unit has at least one shock-absorbing hole located on a virtual line segment drawn to the shaft hole unit from the circumference of a virtually projected circle formed by projecting the outer periphery of the attachment unit axially along the shaft onto a virtual plane that contains the linking unit and is orthogonal to the shaft direction.
摘要:
A photoreceptor includes an electroconductive substrate, and a laminate structure formed of at least a charge generating layer and a charge transport layer and provided overlying the electroconductive substrate, wherein the charge transport layer contains a charge transport material, a compound represented by the following formula 1 and a compound represented by the following formula 2: in the formula 1, R1 and R2 each independently represent substituted or non-substituted alkyl groups or aromatic hydrocarbon groups and one of R1 and R2 represents a substituted or non-substituted aromatic hydrocarbon group, R1 and R2 bonded to the same nitrogen atom may be bonded together to form a substituted or non-substituted nitrogen-containing heterocyclic group, and Ar represents a substituted or non-substituted hydrocarbon group; in the formula 2, R3 and R4 each independently represent substituted or non-substituted alkyl groups or aromatic hydrocarbon groups.
摘要:
An image forming apparatus, including a photoreceptor; a charger; an irradiator; an image developer; a transferer; a fixer; and a cleaning blade formed of a strip-shaped elastic blade, removing a powder from the surface of the photoreceptor passing an edge line of the blade while contacting thereto, wherein the photoreceptor includes a crosslinked resin surface layer formed of at least one of an acrylic resin and a methacrylic resin, and the cleaning blade includes a contact point with the photoreceptor, including a substrate; a mixed layer formed of at least one of an acrylic resin and a methacrylic resin, located at the surface of the substrate; and a surface layer formed of at least one of an acrylic resin and a methacrylic resin, located on the surface of the substrate.
摘要:
A photoreceptor including an electroconductive substrate; a photosensitive layer on the electroconductive substrate; and a protection layer on the photosensitive layer, wherein the protection layer includes a radical polymerizable compound having three or more radical polymerizable groups without a charge transportable group, a monofunctional radical polymerizable compound having a specific charge transportable group and a non-radical polymerizable compound having a specific charge transportable group.
摘要:
A photoreceptor including an electroconductive substrate; a photosensitive layer on the electroconductive substrate; and a protection layer on the photosensitive layer, wherein the protection layer includes a radical polymerizable compound having three or more radical polymerizable groups without a charge transportable group, a monofunctional radical polymerizable compound having a specific charge transportable group and a non-radical polymerizable compound having a specific charge transportable group.
摘要:
An electrophotographic photoreceptor including an electroconductive substrate; a charge generation layer located overlying the electroconductive substrate; a charge transport layer located overlying the charge generation layer; and an outermost layer located overlying the charge transport layer. The charge transport layer includes a positive hole transport material having the following formula (1): wherein each of R1 to R26 independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxyl group having 1 to 4 carbon atoms, and a compound having the following formula (2): wherein each of R27 and R28 independently represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.
摘要:
The present invention provides a naphthoquinone derivative represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification. An electrophotosensitive material containing this naphthoquinone derivative as an electron transferring material has high sensitivity.