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JP6530448B2 |
A polycarbonate copolymer includes a repeating unit A represented by a formula (1) below and a repeating unit B represented by a formula (2) below, in which an abundance ratio represented by Ar 1 /(Ar 1 +Ar 2 ) is in a range of 35 mol% t...
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JP6528735B2 |
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JP6528729B2 |
The invention provides a quinone derivative and an electron photographic light body .Quinone derivatives are represented by the following general formulas ( 1 ), ( 2 ), or ( 3 ). In general formulas ( 1 ), ( 2 ) and ( 3 ), R1 , R2 , R3 ,...
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JP2019086674A |
To solve the problem in which: when a silicone filler to be contained in a photoreceptor is heat treated, the silicone filler is decomposed depending on a heating condition, thereby degrading the electrical characteristics of the photore...
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JP2019086547A |
To provide an electrophotographic photoreceptor unit that has a superior temperature uniformity in a generatrix direction of an electrophotographic photoreceptor, by means of a simple device configuration.An electrophotographic photorece...
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JP6526286B2 |
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JP6524891B2 |
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JP6524708B2 |
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JP6524974B2 |
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JP6524701B2 |
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JP2019083137A |
To provide an induction heating apparatus capable of easily performing preparation before the start of heating even when heating a heated member having a different length or diameter, and capable of uniformity heating the heated member.A...
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JP6519513B2 |
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JP6520191B2 |
An electrophotographic photoreceptor includes a conductive substrate, and a single-layer type photosensitive layer that contains a binder resin, a charge generating material, a hole transporting material, and an electron transporting mat...
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JP6520854B2 |
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JP6520836B2 |
The invention provides unione derivative and an electrophtographic photosensitive member. A quinone derivative is represented by a general formula (I). in the general formula (I), at least one of R<1> to R<3> and at least one of R<4> to ...
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JP2019078869A |
To provide an electrophotographic photoreceptor that is excellent in sensitivity characteristics and the appearance of a drum.An electrophotographic photoreceptor comprises a conductive substrate and a photosensitive layer. The photosens...
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JP2019078836A |
To efficiently heat photoreceptor drums with a simple configuration to inhibit the occurrence of image deletion.An image forming apparatus according to the present invention comprises: photoreceptor drums 8 that each rotate around the ax...
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JP2019078978A |
To provide an electrophotographic photoreceptor that is excellent in sensitivity characteristics.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 and a photosensitive layer 3, and the photosensitive layer 3 is a ...
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JP6515878B2 |
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JP6515880B2 |
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JP6512841B2 |
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JP6512866B2 |
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JP6508129B2 |
The invention provides an electrophotographic photosensitive member, a process cartridge and an image forming apparatus. The electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer. The photosensitive...
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JP6508948B2 |
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JP6507710B2 |
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JP2019066696A |
To provide an electrophotographic photoreceptor with high durability capable of suppressing image deletion even under high temperature and high humidity environment.The electrophotographic photoreceptor has a surface layer and a photocon...
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JP2019065347A |
To suppress a quality deterioration of a formed deposition film by preventing contamination in a vacuum sealing part of a gate valve.A deposition film formation apparatus has a reaction container, a gate valve body sliding in a horizonta...
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JP2019066703A |
To provide a laminate forming method capable of suppressing influences of a binding agent adhering on the surface of the surface layer by performing tape polishing the surface of a surface layer of the laminate.The laminate forming metho...
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JP2019065348A |
To provide a method of forming a laminate film capable of providing images of good quality.The present invention relates to a method of forming a laminate film in which plasma CVD is employed to form a laminate film having a second layer...
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JP2019066781A |
To continuously form high-quality images for a long period by using toner.A toner includes a plurality of toner particles T each including a toner base particle and an external additive attached to the surface of the toner base particle....
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JP2019066708A |
To provide an image forming apparatus that can exert high cleaning performance even at the initial stage of the start of use of a cleaning blade, and can prevent wear of the cleaning blade.An image forming apparatus 100 of the present in...
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JP2019066704A |
To provide a manufacturing method of electrophotographic photoreceptor capable of uniformizing potential distribution in the generatrix direction of an electrophotographic photoreceptor by controlling the thickness of a surface layer wit...
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JP6503992B2 |
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JP6504126B2 |
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JP6503667B2 |
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JP6503831B2 |
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JP6503832B2 |
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JP6503928B2 |
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JP2019060929A |
To provide an electrophotographic photoreceptor that reduces wear in the initial stage of image formation, while preventing an afterimage phenomenon caused by the history of a previous cycle.An electrophotographic photoreceptor comprises...
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JP2019061173A |
To provide a method for manufacturing an electrophotographic photoreceptor which method prevents or reduce contamination to a product by reducing an amount of adsorption of boron within a reaction vessel and thereby can stably produce el...
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JP2019060939A |
To stably manufacture an electrophotographic photoreceptor having excellent uniformity of film characteristics and having no image defect.A base body holder 101 is provided with a spring installation function in end areas at both ends in...
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JP2019061174A |
To provide a method for inspecting thickness of surface layers of various electrophotographic photoreceptors.A method of inspecting thickness of a surface layer of an electrophotographic photoreceptor having at least a substrate, a photo...
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JP2019061149A |
To provide a conductive support for an electrophotographic photoreceptor with which an electrophotographic photoreceptor having a small difference in sensitivity between one end and the other end in the axial direction can be obtained.A ...
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JP2019061003A |
To provide an electrophotographic photoreceptor that is excellent in wear resistance, maintains high cleaning performance, and can prevent the occurrence of an image defect caused by uneven wear.An electrophotographic photoreceptor of th...
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JP2019061156A |
To provide an electrophotographic photoreceptor that prevents end fogging in an image forming apparatus of a direct transfer system.An electrophotographic photoreceptor comprises: a conductive substrate; an undercoat layer provided on th...
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JP2019061150A |
To provide an image formation device that suppresses decrease of image density due to quick image formation and also suppresses belt-like image defects.An image formation device has: an electrophotographic photoreceptor, where the outerm...
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JP2019061091A |
To provide an image forming device in which high cleaning performance and the suppression of contamination in the device due to a fatty acid metal salt are both achieved.Provided is an image forming device comprising: a photoreceptor equ...
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JP2019061073A |
To provide an image forming apparatus with which an image with a little point defect can be obtained.An image forming apparatus comprises: an electrophotographic photoreceptor having a conductive substrate, and a single-layer photosensit...
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JP2019061155A |
To provide an electrophotographic photoreceptor that prevents the occurrence of leakage of electric charge.An electrophotographic photoreceptor comprises: a conductive support; and a photosensitive layer that is provided on the conductiv...
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JP2019061145A |
To provide an electrophotographic photoreceptor that prevents a variation in image density occurring when images are repeatedly formed.An electrophotographic photoreceptor comprises: a conductive substrate; an undercoat layer that is pro...
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