G03G15/75

Image forming apparatus and image forming unit having rotatable stay connecting side plates

An image forming apparatus includes an image forming unit having a rotatable image bearing member, a first support side plate, and a second support side plate; a development device; a transfer device; a rotatable stay; an operation portion; and a toner containing portion. The rotatable stay is disposed at a position downstream of the development device and upstream of the transfer device with respect to a rotation direction of the image bearing member to face the image bearing member and to connect the first support side plate and the second support side plate. The operation portion is provided at an end portion of the stay to rotate the stay. The toner containing portion contains the toner accumulated on the stay.

Electrophotographic member, process cartridge and electrophotographic apparatus

The present invention provides an electrophotographic member having excellent deformation recovery even when stored or used under a high temperature and high humidity environment, which is useful in forming a high-quality electrophotographic image; a process cartridge; and an electrophotographic apparatus. The electrophotographic member of the present invention includes a conductive mandrel and an electro-conductive layer; the electro-conductive layer including a resin synthesized from an ion conducting agent and a compound being able to react with the ion conducting agent; the ion conducting agent including a specific anion and a cation having at least three hydroxyl groups; the compound being able to react with the hydroxyl group.

ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
20170343909 · 2017-11-30 ·

An electrophotographic photosensitive member includes a surface layer containing a charge transporting material and a specific polyester resin having a structure including a specific branched chain.

ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

An electrophotographic photoconductor including a support, an undercoat layer, and a photoconductive layer, the undercoat layer and the photoconductive layer being disposed on the support in an order mentioned, wherein the undercoat layer includes zinc oxide particles, a urethane bond-containing resin, and methylethyl ketone oxime, and the undercoat layer satisfies a formula below:


10<M/L<400  (Formula)

where M is a ratio (ppm) of the methylethyl ketone oxime included in the undercoat layer, and L is an average thickness (μm) of the undercoat layer.

Coated photoconductive substrate

The present disclosure is drawn to apparatuses and methods that include a coated photoconductive substrate. The coated photoconductive substrate can include a photo-conductive substrate with a charge generation layer and a charge transport layer, and can also have a coating adhered to the photoconductive substrate. The coating can comprise a polymer and can be devoid of charge transport materials.

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
20170329243 · 2017-11-16 · ·

An image forming apparatus includes an electrophotographic photoreceptor which includes an electroconductive substrate, an undercoat layer which is provided on the electroconductive substrate, contains a binder resin and a metal oxide particle, and has an electrostatic capacitance per unit area of from 10 pF/cm.sup.2 to 100 pF/cm.sup.2, and a photosensitive layer provided on the undercoat layer; an electrostatic latent image forming unit that forms an electrostatic latent image on a charged surface of the electrophotographic photoreceptor; and a developing unit that stores a developer containing a toner which contains toner particles of which a volume average particle diameter is from 3.0 μm to 5.5 μm, and develops the electrostatic latent image formed on the surface of the electrophotographic photoreceptor by using the developer, so as to form a toner image.

PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

A photoconductor including a conductive support, an undercoat layer, a charge-generating layer, and a charge-transporting layer, at least the undercoat layer, the charge-generating layer, and the charge-transporting layer being disposed on the conductive support in an order mentioned, wherein the undercoat layer includes a binder resin and metal oxide particles, and the charge-generating layer includes a binder resin, a titanyl phthalocyanine pigment, and a salicylic acid derivative.

IMAGE FORMING METHOD AND IMAGE FORMING SYSTEM
20220057724 · 2022-02-24 ·

Provided is an image forming method using an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, and including at least a charging step, an exposure step, a developing step, and a transfer step, wherein the electrophotographic photoreceptor has a photosensitive layer, and the photosensitive layer contains a compound having a structure represented by the following Formula (1) or Formula (2); and in the developing step, the toner for developing an electrostatic charge image containing titanic acid compound particles doped with at least lanthanum as an external additive is used,

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Electrophotographic photoreceptor, electrophotographic cartridge, image forming apparatus, and charge transport substance

The present invention relates to an electrophotographic photoreceptor comprising a conductive support and a photosensitive layer disposed thereover, wherein the photosensitive layer comprises a compound represented by general formula (1) and palladium, the photosensitive layer having a palladium content of 0.01-50 ppm. ##STR00001##

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

The present disclosure provides an electrophotographic photosensitive member that suppresses electric potential fluctuations in repeated use. The electrophotographic photosensitive member includes a support, a photosensitive layer and a protective layer, in this order, wherein the photosensitive layer includes a compound having a structure represented by formula (1), and the protective layer includes a resin having a structure represented by formula (2) and a structure represented by formula (3).