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JP7092975B2 |
To provide a lathing method for a hollow cylindrical workpiece, by which the occurrence of chattering vibration and a deformation is suppressed for a long period of time and a highly accurate hollow cylindrical workpiece can be produced....
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JP7092033B2 |
An electrophotographic photoreceptor that includes a conductive support; and at least a charge generation layer and a charge transport layer on the conductive support, where the charge transport layer includes at least two layers of a fi...
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JP7089217B2 |
To provide an image forming apparatus that solves the trade-off between wear resistance of a photoconductor and image blur and allows print output with high image uniformity even when the apparatus performs a large amount of printing in ...
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JP7087709B2 |
In general formula (1), Ra, Rb, and Rc each represent, independently of one another, an alkyl group having a carbon number of at least 1 and no greater than 8 or an alkoxy group having a carbon number of at least 1 and no greater than 8....
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JP7086748B2 |
To provide a simple manufacturing method of an electrophotographic photoreceptor a surface layer of which has superior wear resistance and lubricity, and further to provide an electrophotographic photoreceptor manufactured by the manufac...
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JP7083698B2 |
To provide an electrophotographic photoreceptor, an electrophotographic photoreceptor unit, and an image forming apparatus that can prevent the occurrence of printing failure.An electrophotographic photoreceptor 10 comprises: a cylindric...
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JP7081283B2 |
To provide an electrophotographic photoreceptor excellent in oil resistance.An electrophotographic photoreceptor 7 comprises: a conductive substrate 3; and a single-layer photosensitive layer 2 that is provided on the conductive substrat...
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JP7080739B2 |
To provide an electrophotographic photoreceptor which exhibits little sensitivity variation in all types of environments from low temperature/low humidity environments to high temperature/high humidity environments.An electrophotographic...
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JP2022082102A |
To provide an electrophotographic photoreceptor that reduces the occurrence of a stripe image and contains organic filler in a surface layer.An electrophotographic photoreceptor has a support and a photosensitive layer on the support. A ...
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JP7077730B2 |
To provide an electrophotographic image formation method that can maintain high cleaning properties over a long period upon using a hardening type OCL photoreceptor.An electrophotographic image formation method of the present invention h...
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JP7078130B2 |
This electrophotographic photosensitive body is provided with a conductive base material and a single photosensitive layer. The photosensitive layer contains at least a charge generator and a compound represented by general formula (1). ...
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JP7075288B2 |
Provided is an electrophotographic photosensitive member that can suppress the generation of both an interference fringe and a streaky uneven part in a circumferential direction on an image. The generation of the interference fringe and ...
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JP2022077756A |
To provide an electrophotographic photoreceptor that is excellent in print resistance, has high mechanical strength, and prevents the occurrence of an image defect associated with partial damage to a cleaning blade and image shading unev...
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JP2022076878A |
To provide a continuous drawing method and a continuous drawing device by which a drawn tube with high surface quality can be obtained.According to a continuous drawing method, a plurality of element tubes 40 are continuously drawn by se...
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JP7071832B2 |
To provide an image forming apparatus that charges a photoreceptor by a contact charging method, prevents the occurrence of a streak image defect in a formed toner image due to ununiform charging, has a long durable printing life of an e...
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JP7069746B2 |
To provide a photoreceptor that has excellent durability and sufficient cleanability against contaminants accumulated on the surface of the photoreceptor, and from which a good image is obtained.A one-dimensional data array obtained by m...
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JP7069616B2 |
An image forming method forms an image by performing charging, exposing, developing, and transferring in a rotation direction of a rotationally driven photoreceptor, wherein the charging is performed by a roller charging method, exposing...
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JP7069783B2 |
An object of the present invention is to provide an image bearing member for electrophotography. The image bearing member has high mechanical properties which include abrasion resistance and scratch resistance, is excellent in toner rele...
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JP7069552B2 |
To provide an image forming apparatus capable of suitably suppressing occurrence of fogging even in such an environment that the fogging easily occurs like a case using a non-magnetic one-component contact development system in a positiv...
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JP2022072264A |
To provide an electrophotographic photoreceptor that is excellent in printing resistance, has high mechanical strength, and prevents the occurrence of an image defect due to chipping of an edge portion of a cleaning blade and image shadi...
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JP7067212B2 |
To provide an electrophotographic photoreceptor that achieves both oil resistance and high sensitivity.An electrophotographic photoreceptor comprises: a conductive substrate; and a single layer type photosensitive layer that is provided ...
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JP7067157B2 |
The present invention aims to provide an electrophotographic photoreceptor excellent in abrasion resistance and electrical properties, which uses polymers excellent in surface-active functions such as fluororesin dispersibility and elect...
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JP2022069078A |
To provide an electrophotographic photoreceptor that is excellent in wear resistance, filming resistance, and scratch resistance and prevention of transfer memory.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 ...
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JP2022069080A |
To provide an electrophotographic photoreceptor that is excellent in sensitivity characteristics, filming resistance, and scratch resistance.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 and a photosensitive l...
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JP2022069079A |
To provide an electrophotographic photoreceptor that is excellent in wear resistance, filming resistance, and scratch resistance.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 and a photosensitive layer 3. The ...
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JP2022069077A |
To provide an electrophotographic photoreceptor that is excellent in electrification stability and prevention of transfer memory.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 and a photosensitive layer 3. The ...
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JP7060923B2 |
The present invention provides an electrophotographic photosensitive member in which a photosensitive layer has strong close adhesiveness even when used repeatedly, and a positive ghost is reduced. An undercoat layer of the electrophotog...
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JP7060921B2 |
There is provided an electrophotographic photosensitive member in which the variation in potential during repeated use is reduced. The electrophotographic photosensitive member is the electrophotographic photosensitive member of which an...
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JP7059111B2 |
To provide an electrophotographic photosensitive member which does not cause film exfoliation in long-term use. An electrophotographic photosensitive member, having: a support; a layered photosensitive layer; and a protective layer in th...
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JP7059112B2 |
Provided is an electrophotographic photosensitive member that is reduced in exposure memory and is excellent in electrical characteristics and durability. The electrophotographic photosensitive member includes in this order: a support; a...
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JP7057104B2 |
A process cartridge configured to be detachably attachable to a main body of an electrophotographic image forming apparatus, in which an occurrence of an image failure is suppressed, wherein the process cartridge includes an electrophoto...
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JP7054366B2 |
An electrophotographic photosensitive member includes a support and a surface layer, in which the surface layer contains a copolymer of a composition which contains at least a compound represented by the following general formula (1) and...
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JP7052890B2 |
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer containing a charge transport portion including a first hole transport material represented by General Formula (1) below, a cured resin, and ...
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JP2022054800A |
To provide an electrophotographic photoreceptor that can be satisfactorily positively electrified even when positive electrification and negative electrification are repeated and is excellent in sensitivity characteristic and wear resist...
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JP2022054801A |
To provide an image forming apparatus that can satisfactorily positively electrify an image carrier even when positive electrification and negative electrification of the image carrier are repeated and is excellent in wear resistance of ...
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JP7050161B2 |
The present invention provides a novel compound capable of improving luminous efficiency, stability and lifetime of a device, an organic electric element using the same, and an electronic device thereof.
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JP2022054796A |
To provide an electrophotographic photoreceptor that can be satisfactorily positively electrified even when positive electrification and negative electrification are repeated and is excellent in wear resistance.A photosensitive layer of ...
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JP2022054798A |
To provide an electrophotographic photoreceptor that can be satisfactorily positively electrified even when positive electrification and negative electrification are repeated and is excellent in sensitivity characteristic.An electrophoto...
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JP2022054802A |
To provide an electrophotographic photoreceptor that can be satisfactorily positively electrified even when positive electrification and negative electrification are repeated and is excellent in wear resistance and storage property in a ...
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JP2022055357A |
To provide a process cartridge that prevents both image deletion and scratches in a drum, while achieving a high speed and a long life.A process cartridge has a photoreceptor, toner, and a developing roller. The Martens hardness of a sur...
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JP2022054799A |
To provide an electrophotographic photoreceptor that can be satisfactorily positively electrified even when positive electrification and negative electrification are repeated and is excellent in storage property in a high temperature env...
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JP7047552B2 |
To provide a positive charging type electrophotographic photoreceptor suppressing increase in a residual potential while ensuring the sensitivity.A positive charging type electrophotographic photoreceptor comprises: a conductive substrat...
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JP7046645B2 |
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. The particles have a c...
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JP7046571B2 |
Provided is a process cartridge having a charging member and an electrophotographic photosensitive member to be charged by being in contact with the charging member, wherein the electrophotographic photosensitive member has a support and...
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JP7043953B2 |
To provide an electrophotographic photoreceptor that prevents the occurrence of a dent in an inorganic protective layer.An electrophotographic photoreceptor has a conductive substrate, a single-layer photosensitive layer provided on the ...
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JP2022049986A |
To provide a polyarylate resin which enables abrasion resistance and sensitivity characteristics of a photosensitive layer of a photoreceptor to be improved when the polyarylate resin is contained in the photosensitive layer of the photo...
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JP7043906B2 |
To provide an electrophotographic image formation method capable of suppressing occurrence of a lubricant memory, and excellent in transfer efficiency.The image formation method uses an organic photoreceptor (1) and comprises at least, a...
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JP2022049733A |
To provide a polyarylate resin which enables abrasion resistance and sensitivity characteristics of a photosensitive layer of a photoreceptor to be improved when the polyarylate resin is contained in the photosensitive layer of the photo...
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JP7035747B2 |
To provide an electrophotographic photoreceptor that prevents an increase in residual potential when repeated images are formed.An electrophotographic photoreceptor comprises: a conductive substrate; a photosensitive layer that is provid...
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JP7036065B2 |
Provided is an image forming method using an electrophotographic photoreceptor provided with a photosensitive layer and a protective layer in this order on a conductive support, and a toner, and the image forming method containing a char...
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