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JP7337582B2 |
To effectively prevent leakage of electric charge from a toner on a developer carrier to the developer carrier not only by relying on increasing resistance.A developing device has a developer carrier that carries a developer having condu...
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JP2023122440A |
To provide a roller member which suppresses cracking of a surface layer thereof when continuously turned while being pressed against another object.A roller member provided herein comprises a conductive elastic layer and a surface layer ...
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JP7336351B2 |
An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging unit, and a developing unit, wherein the charging unit has a conductive member contactable with the electrophotographic photosensitive m...
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JP7336289B2 |
To provide an electrophotographic member causing less change in toner conveyance even used in a high-temperature and high-humidity environment. The electrophotographic member has an electro-conductive substrate, an elastic layer on the s...
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JP2023120898A |
To provide an end regulation member and a belt circulating device and an image forming apparatus that can reduce slide friction between a regulation part and an end of a belt when the belt skews despite a simple configuration.An end regu...
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JP7330852B2 |
An electrophotographic apparatus having an electrophotographic photosensitive member, a charging unit, and a developing unit for forming a toner image, wherein the charging unit has a conductive member disposed to be contactable with the...
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JP7329174B2 |
To provide a developing roller which has a laminate structure and with which it is possible to form an image having higher image quality than currently possible.A developing roller 1 comprises a roller body 5 that includes 20 and over to...
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JP2023114009A |
To suppress electrolytic corrosion of a bearing supporting a shaft integrally formed with a roll in a corona discharge treatment device.A corona discharge treatment device 6 that surface-treats a film 9 by generating corona discharge on ...
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JP7326874B2 |
Provided is a fixing apparatus including a fixing member, wherein the fixing member includes a thermoplastic resin layer as an outermost surface layer; and the fixing apparatus includes an indentation forming member having a protrusion s...
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JP2023111872A |
To provide a contact roll capable of sufficiently reducing wrinkles and electrostatic charges of a film roll over a long period, even in manufacturing a film roll having high surface smoothness.A contact roll has a first layer made of an...
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JP2023110422A |
To provide a paper feed roll in which determination of roll life is facilitated.A paper feed roll 10 comprises an axial body 12, and an elastic body layer 14 formed on an outer peripheral face of the axial body 12. The elastic body layer...
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JP7322625B2 |
A conductive roller includes a supporting member and a conductive elastic foam layer disposed on the supporting member. In a spectrum of amplitude (μm) vs. period (μm) obtained by subjecting a roughness waveform of the outer circumfere...
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JP7321771B2 |
Provided is a fixing member includes: a substrate; and an elastic layer on the substrate, wherein the elastic layer contains a rubber and fillers dispersed in the rubber, and wherein an average value of area ratios of large-particle diam...
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JP2023108400A |
To provide a roller which has a new structure and can fix a holder member to a cylindrical member without using adhesives and fastening elements.A roller has: a cylindrical member 2 in which at least one end side is open; and holder memb...
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JP2023107612A |
To provide a conductive member that, when mounted in an image forming apparatus, has excellent cleanability and prevents a stripe-like image defect caused by the generation of cracks.A conductive member comprises a conductive substrate, ...
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JP7319907B2 |
To provide a conductive roll for an electrophotographic apparatus that can suppress generation of cracks in a roll surface at the time of endurance.A conductive roll 10 includes: a shaft body 12; an elastic body layer 14 on the outer per...
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JP7318716B2 |
A bearing box for a rotating roller used in a high-temperature environment generated by, for example, radiant heat is provided. The bearing box enables a bearing and an oil seal to be efficiently cooled with cooling water over the entire...
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JP2023104265A |
To provide a roll capable of expanding a contact surface area to a surface to be cleaned, and improving effect of absorbing liquid such as moisture.A roll 10 having a roll part 1 and a pedestal 2 is such that: the roll part 1 is formed b...
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JP7316412B2 |
To provide a bearing lubrication structure capable of preventing failure in rotation of a bearing from being caused by dirt etc. when a bearing is used in a liquid.A bearing support member supports a ceramic bearing (a bearing) pivotally...
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JP7313967B2 |
To provide a manufacturing method for an elastic roller with reduced outer diameter variation in a method for taking an elastic roller extruded by a crosshead extruder.A manufacturing method for an elastic roller includes the steps of: c...
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JP7314045B2 |
To provide a developing roller that can prevent fogging under a high-temperature and high-humidity condition and provide a high-quality image, and a developing device and an image forming apparatus using the developing roller.A developin...
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JP7313936B2 |
To provide a developing roller that prevents the occurrence of white stripes and is excellent in storage stability, a developing device, and an image forming apparatus.A developing roller comprises an elastic layer 12, an intermediate la...
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JP7314046B2 |
To suppress an increase in resistance value in continuous energization of a conductive roller.A conductive roller 10 includes: a shaft 11; and a resin foam 12 provided in the outer periphery of the shaft 11. The resin foam 12 contains: a...
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JP7314013B2 |
To provide a developing roller that satisfactorily prevents the occurrence of filming and is excellent in durable printing performance, a developing device, and an image forming apparatus.A developing roller 1 comprises: a shaft body 2; ...
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JP7308752B2 |
The present invention refers to a new type of transport roller providing a modified surface to provide improved transport properties for new substrates. Furthermore, it refers to horizontal transport systems beneficially utilizing such t...
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JP7306242B2 |
To reduce a load applied to an end of a belt due to contact with a belt regulation surface.A belt unit comprises: an endless belt; a roller member that forms a nip with the endless belt; and a guide member that supports the endless belt ...
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JP7305498B2 |
To provide a member for electrophotography with which it is possible to suppress a difference in hardness between vicinity to an inner circumference and other portions and resist the repeated passing of a thick recording medium while sec...
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JP2023097537A |
To suppress adhesion failure on an interface between a base material layer and an elastomer layer, in a roller for OA comprising the base material layer containing pigments for absorbing ultraviolet light, and the elastomer layer contain...
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JP2023098086A |
To eliminate static electricity on a first layer and a third layer of a first rotating member, or eliminate static electricity on the first layer of the first rotating member and a surface layer of a second rotating member.A fixing devic...
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JP2023095042A |
To provide a paper feed roll in which when an elastic body payer is configured from two or more layers, nonuniformity of a surface of the elastic body layer is suppressed, and transport failures are reduced even during long-term use.A pa...
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JP2023093156A |
To provide a sheet conveyance roller having a high coefficient of friction, and a rubber composition for forming its roller body.A rubber composition for forming a roller body of a sheet conveyance roller contains a rubber component cont...
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JP7301572B2 |
To provide a fixing member which maintains superior toner releasability even after prolonged use.A fixing member for electrophotography is provided, comprising a base layer and a surface layer provided directly, or via a primer layer, on...
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JP7301571B2 |
To provide a fixing member which maintains superior toner releasability even after prolonged use.A fixing member is provided, comprising a base layer, an elastic layer, and a surface layer arranged in the described order, where the elast...
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JP2023091122A |
To provide a hollow disk rotor for a flywheel power storage device and a method for manufacturing the same which remarkably improve a limit peripheral velocity and limit storage energy.A hollow disk rotor for a flywheel power storage dev...
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JP2023091419A |
To provide a rubber composition which enables manufacture of a sheet conveyance roller that is excellent in a coefficient of friction and abrasion resistance.A rubber composition for a sheet conveyance roller contains an ethylene-αolefi...
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JP2023090568A |
To provide a developing roller which improves durability of toner against deterioration.A developing roller 1 conveys toner to a photoreceptor. The developing roller 1 has a hardness of 0.1 N/mm2 or less as measured when a surface of the...
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JP7299741B2 |
There is provided a member for electrophotography, which contributes to formation of a high-quality electrophotographic image. The member for electrophotography includes an electro-conductive substrate and an electro-conductive layer as ...
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JP7297498B2 |
To provide a conductive member for electrophotography that can be used as a charging member that can reduce omission of discharge to prevent the occurrence of a ghost image.A conductive member for electrophotography has a conductive supp...
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JP7291603B2 |
To provide a rotating roller that is applied to an apparatus for manufacturing a tow prepreg, and that can suppress the loss of a resin amount.There is provided a rotating roller that is applied to a tow prepreg manufacturing apparatus f...
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JP7291747B2 |
The charging roll 10 for an electrophotographic device comprises a shaft 12, an elastic layer 14 formed on the outer peripheral surface of the shaft 12, and a top layer 16 formed on the outer peripheral surface of the elastic layer 14. T...
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JP7287144B2 |
To provide a manufacturing method of a rotation body device and a manufacturing apparatus capable of rigidly fixing a sleeve and a flange while suppressing deformation of the sleeve.A method of manufacturing a rotation body device provid...
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JP7286454B2 |
The electrophotographic member (1) comprises: an electroconductive substrate (2); and an electroconductive layer (3) on or above the substrate, an outer surface of the electrophotographic member having electrically insulating first regio...
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JP7286427B2 |
To provide a sheet ejection roller capable of satisfactorily ejecting a sheet without causing deviation of a coating layer.A sheet ejection roller 10 including a shaft body 11, an elastic layer 12, and a coating layer 13 on the outer cir...
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JP7283744B2 |
To provide a travel roller for a cableway rope grasping machine which can increase a fitting strength against a thrust load exerted on a shaft bearing.A travel roller 21 is rotatably provided for a cableway rope grasping machine 20 and r...
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JP2023072730A |
To provide a cooling roller capable of improving heat transfer between an inner drum and an outer pipe.A cooling roller AA includes: an inner drum 10 including a refrigerant circulation path 12 in the inside; an outer pipe 20 burned and ...
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JP7278796B2 |
To provide a roller that can prevent hardness from increasing when a fiber-like thermally conductive filler is used.A roller used for a fixing device has an elastic layer 53b, a release layer, and an adhesion layer provided between the e...
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JP7275537B2 |
To provide a rotary shaft which can automatically discharge foreign objects.A pressing roller 100 is inserted into bearing attachment members, into which bearings 15 with flanges are inserted, at both end parts, pivotally supported by th...
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JP7277071B2 |
To restrict reduction in hardness of a shaft of rotation in the hollow shaft of rotation having a mating surface.A body of rotation comprises: an end part on one side and an end part on the other side that are facing each other, constitu...
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JP7275803B2 |
To provide a pressure roller 2 for molding rubber parts that contributes to the production of high quality tires.The pressure roller 2 for forming rubber members is provided with a support shaft 6, a roller body 8 supported on the suppor...
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JP2023067019A |
To provide a charging roll for electrophotographic apparatuses that excels in chargeability and uniform charging property, and a method for manufacturing the charging roll for electrophotographic apparatuses.Provided is a charging roll 1...
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