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JP2022042758A |
To provide an electrophotographic photoreceptor capable of suppressing development of memory while maintaining high sensitivity characteristics of the photoreceptor employing a phthalocyanine pigment as a charge generating substance, and...
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JP7034760B2 |
An electrophotographic photosensitive member includes a support member (201), an electroconductive layer (202), and a photosensitive layer in this order. The electroconductive layer contains a binder and particles. Each of the particles ...
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JP2022042253A |
To provide a toner that has toner base particles including a crystalline polyester resin, the toner with which the occurrence of a slipping phenomenon can be prevented, a two-component developer, and an image forming apparatus.A toner ha...
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JP7034829B2 |
Provided is an electrophotographic photosensitive member that suppresses image smearing at the time of its repeated use, and expresses satisfactory wear resistance and electric characteristics. The electrophotographic photosensitive memb...
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JP7034768B2 |
Provided is an image-forming apparatus including: an electrophotographic photosensitive member including a support, a photosensitive layer, and a protective layer in the stated order; a charging unit; an exposing unit; a developing unit;...
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JP7034655B2 |
Provided is an electrophotographic photosensitive member in which the generation of a positive ghost image is suppressed under a low-temperature and low-humidity environment, and the occurrence of cracking is suppressed under a high-temp...
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JP7034769B2 |
and an A value expressed by expression (4), A=S1/S2, wherein, in expression (4), S1 is a peak area based on in-plane deformation vibration of terminal olefin (CH2═), and S2 is a peak area based on stretching vibration of C═O among pe...
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JP2022039092A |
To suppress occurrence of a residue of a support in a process for separating the support as compared with a configuration having a process for heating to temperature higher than a melting point of the support and separating the support.A...
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JP2022039552A |
To provide a polyarylate resin which can improve wear resistance when contained in a photosensitive layer of a photoreceptor, and can improve a liquid life characteristic when contained in an application liquid for a photosensitive layer...
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JP2022037369A |
To provide an image forming method and an image forming system that are excellent in low temperature fixability, transfer property, and cleaning property in a contact electrification system, and can stably form high-quality images for a ...
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JP2022035992A |
To provide a laminate which comprises a layer containing an organic material and a layer containing a siloxane compound and a metal oxide, and which makes it difficult to separate the layer containing the organic material and the layer c...
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JP2022034384A |
To provide an image forming method and an image forming system that ensure high durability while achieving both cleaning performance and image quality.An image forming method of the present invention uses an electrophotographic photorece...
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JP2022033542A |
To provide an electrophotographic photoreceptor that is excellent in charge stability, wear resistance, and image memory resistance for a long period.An electrophotographic photoreceptor has a conductive support, a photosensitive layer a...
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JP7028730B2 |
To improve efficiency of deposition film forming, and to suppress film defect generation in a deposition film by suppressing peel-off generation from a dummy base body.A deposition film forming device 100 includes: a deposition chamber 2...
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JP7027755B2 |
To provide an imaging forming device which can suppress the reduction of a fatty acid metal salt in a development machine by comparing it with the case that potential difference expansion processing is performed even in a second zone sim...
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JP7024717B2 |
The present invention aims to provide an electrophotographic photoreceptor which is excellent in abrasion resistance against practical load and excellent in initial electrical properties, preferably further excellent in adhesion between ...
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JP7020080B2 |
To provide a tandem type electrophotographic image forming apparatus which suppresses image deletion of a formation image, suppresses slipping of a toner, and achieves long lives of an organic photoreceptor and the apparatus.A tandem typ...
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JP7019351B2 |
An average value of a hydrogen content ratio of a surface layer made of hydrogenated amorphous carbon is set to be 0.40 or less and a maximum value of an sp 2 bonding ratio in an outermost surface region of the surface layer made of the ...
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JP7019350B2 |
The present invention provides an electrophotographic photosensitive member which has a substrate, a photoconductive layer and a surface layer formed from hydrogenated amorphous silicon carbide in this order. The average value of the car...
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JP7001164B2 |
An image forming apparatus includes an image bearing member, a charger, a light exposure device, and a development device. The charger charges a circumferential surface of the image bearing member to a positive polarity. The light exposu...
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JP7001163B2 |
An image forming apparatus includes an image bearing member, a charger, a light exposure device, a development device, a transfer belt, a primary transfer device, a secondary transfer device, and a cleaning member. The cleaning member is...
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JP7016253B2 |
To provide a work-piece failure determination method capable of clearly specifying a failure cause.According to this invention, a work-piece failure cause specification method includes a plurality of production steps for processing a wor...
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JP7013688B2 |
To provide an image forming apparatus that has excellent fixability, can obtain stable electrical characteristics even after being used in a high-temperature and high-humidity environment for a long period, and can prevent afterimage, sc...
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JP2022018811A |
To provide compounds that improve sensitivity characteristics of a xerographic photoreceptor when contained in a photosensitive layer.For example, the compounds in the figure are provided.SELECTED DRAWING: Figure 1
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JP2022018813A |
To provide: compounds that improve sensitivity characteristics of a xerographic photoreceptor when contained in a photosensitive layer; and a xerographic photoreceptor excellent in sensitivity characteristics.The compounds are represente...
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JP2022018812A |
To provide compounds that improve sensitivity characteristics of a xerographic photoreceptor when contained in a photosensitive layer.The compounds are represented by general formula (1) in the figure. In the formula, X is a cyanoimino g...
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JP2022019498A |
To provide a developing device that can ensure, for a long period, the setting range of a developing bias that can achieve both a target image density and cleanability of undeveloped toner, and an image forming apparatus including the sa...
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JP7009905B2 |
To prevent a steady increase in drive torque of a photoreceptor drum and a rapid wear of a slide contact member.An image forming apparatus according to the present invention comprises: photoreceptor drums 8 that are rotatably provided; a...
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JP7009258B2 |
wherein Ti represents a titanium atom, O represents an oxygen atom, N represents a nitrogen atom and 0.00
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JP2022016937A |
To provide an electrophotographic photoreceptor that is excellent in printing resistance, has high mechanical strength, and can prevent an image defect associated with chipping of an edge portion of a cleaning blade, and an image forming...
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JP7005327B2 |
An electrophotographic photosensitive member includes a surface layer containing a charge transporting material and a polyester resin having a specific structure.
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JP7004011B2 |
An electrophotographic photoreceptor, including a photosensitive layer formed on an electroconductive substrate. The photosensitive layer includes a charge-generating material and an electron-transporting material, and the electron-trans...
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JP7001144B2 |
To provide a photoreceptor for electrophotographic with high-pressure resistance having a photosensitive layer containing an electronic transport material capable of suppressing the occurrence of the leaking phenomenon, manufacturing met...
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JP7000760B2 |
To provide an electrophotographic photoreceptor that prevents the generation of a white spot in an image.An image forming apparatus 100 comprises: an electrophotographic photoreceptor 7 that includes a conductive support having concave p...
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JP6998197B2 |
To provide a holder for cylindrical body capable of drying and removing cleaning liquid quickly, and a method for manufacturing a photosensitive drum using the holder.A holder 1 comprises: a holder body part 2 inserted and arranged into ...
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JP2022012901A |
To provide an electrophotographic device which offers superior fine line reproducibility.An electrophotographic device is provided, comprising: exposure means with a light source having the maximum peak in an emission spectral range of 3...
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JP6996180B2 |
To provide an electrophotographic photoreceptor which, while securing sensitivity, suppresses a rise in residual potential.Provided is an electrophotographic photoreceptor comprising: a conductive substrate 1; an organic photosensitive l...
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JP6995588B2 |
An electrophotographic photosensitive member includes a support member, an electroconductive layer, and a photosensitive layer, in this order. The electroconductive layer contains a binder resin, electrically conductive first metal oxide...
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JP6995583B2 |
To provide an electrophotographic photoreceptor which achieves both excellent durability and scratch resistance.An electrophotographic photoreceptor has a surface layer containing a charge transport substance, a polyester resin having a ...
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JP2022008025A |
To provide an electrophotographic photoreceptor that has high photosensitivity and prevents the generation of black spots.An electrophotographic photoreceptor has a conductive substrate, and a single-layer photosensitive layer that is pr...
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JP6987542B2 |
To provide a xerographic photoreceptor in which the fluorine atom-containing resin particles are dispersed to a particle diameter closer to the primary particle in the curable type surface layer and has excellent electrophotographic char...
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JP6987544B2 |
To provide an electrophotographic photoreceptor having electric characteristics less influenced by temperature and/or humidity, and a method for manufacturing the electrophotographic photoreceptor, and to provide a process cartridge and ...
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JP2022000668A |
To provide an electrophotographic photoreceptor that can maintain stability of electrostatic characteristics after repeated use for a long period and prevent the occurrence of ghost, and to provide an electrophotographic image forming ap...
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JP2021193405A |
To provide an organic photoreceptor that can prevent uneven wear of the photoreceptor caused by unevenness in the amount of supplied lubricant to achieve a long life, an electrophotographic image forming apparatus, and a method for manuf...
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JP6984397B2 |
To provide an image forming device in which an abnormal image on an image carrier is not formed for a long period of time, and which is excellent in a cleaning property.In an image forming device, an image carrier and toners which are us...
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JP6984264B2 |
To provide an image forming apparatus that prevents density unevenness occurring at the beginning of image formation.An image forming apparatus comprises a control unit that controls a driving device driving to rotate an electrophotograp...
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JP6983543B2 |
Provided is an electrophotographic photosensitive member, including: a support; a charge-generating layer on the support; a charge-transporting layer on the charge-generating layer; and a protective layer on the charge-transporting layer...
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JP6981141B2 |
To provide a conductive support for an electrophotographic photoreceptor that prevents turn-up of a photosensitive layer.A conductive support for an electrophotographic photoreceptor has a thickness of an end face at one end in the axial...
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JP2021189207A |
To provide an electrophotographic photoreceptor that is excellent in mechanical strength including wear resistance and scratch resistance and can maintain satisfactory cleanability for a long period, an electrophotographic image forming ...
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JP6978858B2 |
To provide an electrophotographic photoreceptor that can suppress a ghost image.An electrophotographic photoreceptor comprises a substrate, an intermediate layer including metal oxide particles, and a photosensitive layer in this order; ...
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