摘要:
To provide an electrophotographic photoconductor, containing: a conductive support; a photosensitive layer provided above the conductive support; and a hardened protective layer provided above the photosensitive layer, wherein the hardened protective layer contains a hardened product of a radical polymerizable compound containing an adamantane skeleton.
摘要:
An electrophotographic photoreceptor, including a charge generation layer and a charge transport layer on an electroconductive substrate, wherein the charge generation layer includes titanylphthalocyanine and a binder resin which is a crosslinked material of a resin comprising a polyvinylbutyral site having the following formula (1) and an isocyanate compound having the following formula (2): wherein R1 and R2 independently represent an alkyl group having 1 to 3 carbon atoms; k, l, m and n represent composition ratios and k+l is from 0.60 to 0.80, wherein k or l may be 0, m is from 0.02 to 0.03, and n is from 0.20 to 0.40; wherein A represents a substituted or unsubstituted organic group having 2 to 4 valences; and O represents an integer of from 2 to 4.
摘要:
An electrophotographic photoconductor, including: an electroconductive substrate; and at least a photoconductive layer and a surface layer in this order over the electroconductive substrate, wherein the surface layer includes a resin having no charge transport properties, and first inorganic fine particles, and wherein the first inorganic fine particles are inorganic fine particles having surfaces modified with at least one of a primary amino group and a secondary amino group, and a volume resistivity of the first inorganic fine particles is 1×108 Ω·cm or less.
摘要:
An electrophotographic photoreceptor including a conductive substrate, a photosensitive layer located overlying the conductive substrate, and a hardened protective layer located overlying the photosensitive layer. The hardened protective layer comprises a hardened material of a hardenable composition comprising a radical-polymerizable compound (A) having a charge transport structure and a radical-polymerizable compound (B) having an adamantane skeleton.
摘要:
An image bearing member includes a substrate, a photosensitive layer overlying the substrate, and a surface protective layer overlying the photosensitive layer and having a surface comprising multiple concave structures with a maximum diameter of from 1 μm to 3 μm and a maximum depth of from 10 nm to 50 nm. Any one of the concave structures has at least one other concave structure within 3 μm thereof.
摘要:
An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer, and a cured protection layer, wherein the cured protection layer comprises a cured material of a tri- or more functional radical polymerizable compound and a filler exposed from the surface of the cured protection layer which comprises a bump along the surface of the filler, and wherein the cured protection layer has a thickness (T) larger than a diameter (2r) of the filler therein and the following relationships (a) is satisfied: (the number of the fillers present to a depth of T/2 from a free surface of the cured protection layer/the total number of the fillers in the cured protection layer)×100≧7% (a).
摘要:
An object is to provide an electrophotographic photoconductor which prevents an increase in the friction coefficient of the photoconductor surface caused when printing takes place for a long period of time or in large amounts, which has sustainability of the low photoconductor surface friction coefficient, low wear properties and high durability, and which is particularly superior in polymerized toner (or spherical toner) cleaning capability; a process cartridge incorporating the electrophotographic photoconductor; and an image forming apparatus incorporating the electrophotographic photoconductor. There is an electrophotographic photoconductor including: a photoconductor substrate, a photosensitive layer over the photoconductor substrate, and a protective layer over the photoconductor substrate, wherein the protective layer is formed by curing together at least a trifunctional or more radical polymerizable monomer having no charge transporting structure, a fluorine-based UV-curable hard coat agent and a monofunctional radical polymerizable compound having a charge transporting structure, and contains lubricant fine particles.