Abstract: A toner comprising a toner particle comprising a binder resin and organosilicon polymer particles on a surface of the toner particle, wherein the binder resin comprising an amorphous resin and a crystalline polyester resin, an absolute value |SPcpes?SPsi| of a difference between an SP value (SPsi) of the organosilicon polymer particles and an SP value (SPcpes) of the crystalline polyester resin is not more than 2.00 (cal/cm3)1/2, and an amount of adsorbed water in the organosilicon polymer particles at a temperature of 30° C. and a humidity of 80% RH is not more than 20 mg/g.

Abstract: An electronic apparatus includes a noise measurement circuitry that measures electromagnetic noise in a surrounding environment, and a controller that controls timing of turning on or off a switching circuit based on the electromagnetic noise measured by the noise measurement circuitry.

Abstract: An electronic apparatus includes processing circuitry configured to generate first control information about timing with which a first switching control device performs switching control and second control information about timing with which a second switching control device performs switching control based on location information on the first switching control device and location information on the second switching control device.

Abstract: A toner is provided, which has a toner particle that contains a binder resin, and organosilicon polymer particle on a surface of the toner particle. A methanol concentration a (vol %) of the organosilicon polymer particle in a wettability test and a methanol concentration b (vol %) of the toner particle in a wettability test satisfy Expression (I) below: |a?b|?25??(I), and an adhesion index of the organosilicon polymer particle on a polycarbonate film, calculated on the basis of Expression (II) below, is not more than 3.5: Adhesion index=area ratio c of the organosilicon polymer particle having migrated to the polycarbonate film/coverage ratio d of the organosilicon polymer particle on the surface of the toner particle×100??(II).

Abstract: Provided is an electrophotographic developer set having a toner and a powder adhesive, wherein the toner comprises a thermoplastic resin A; the powder adhesive comprises a thermoplastic resin B and a wax A; the wax A has two or more ester groups in the molecule; the thermoplastic resin B has an ester group; and in a viscoelasticity measurement, with Gt?(100) (Pa) being a storage elastic modulus at 100° C. of the toner, and Gb?(100) (Pa) being a storage elastic modulus at 100° C. of the powder adhesive, Gb?(100) is 1.00×105 Pa or less, and Gt?(100)/Gb?(100) is 1.20 or more, as well as a method for producing a bonded product using the above electrophotographic developer set.

Abstract: A toner comprising a toner particle that contains a binder resin and fine particles A at the surface of the toner particle, wherein the fine particles A are organosilicon polymer fine particles, the organosilicon polymer fine particles have a number-average primary particle diameter of 30 nm to 500 nm, the organosilicon polymer fine particles have an attachment index for a polycarbonate film of not more than 3.5, the organosilicon polymer fine particles penetrate into the toner particle in a penetration depth b (nm), and protrude from the toner particle in a protrusion height c (nm), and b and c satisfy 0.05?b/(b+c)?0.40.

Abstract: The powder adhesive comprises a thermoplastic resin and particles of an aromatic compound, wherein the particles of an aromatic compound are particles of a compound that has an aromatic ring and an azo bond bonded to the aromatic ring, or are particles of a compound comprising a heteroaromatic ring comprising nitrogen atom; the thermoplastic resin comprises an ester group; and, designating Es (mmol/g) as an ester group concentration in the thermoplastic resin, M (mass %) as a content of the aromatic compound particles in the powder adhesive, and N (mmol/g) as a nitrogen atom concentration in the aromatic compound particles, Es is from 1.0 mmol/g to 4.5 mmol/g, M is from 1.0×10?4 mass % to 1.0×100 mass %, and N is from 5.0 mmol/g to 15.0 mmol/g.

Abstract: An electrophotographic developer set comprising a toner, and a powder adhesive, wherein the powder adhesive comprises a crystalline polyester resin, and a thermoplastic resin other than the crystalline polyester resin; the amount of the crystalline polyester resin in the powder adhesive is 21% by mass or more; the melting point of the crystalline polyester resin is 55° C. to 100° C.; in a viscoelasticity measurement, where Gt?(100) denotes a storage elastic modulus of the toner at 100° C. and Gb?(100) denotes a storage elastic modulus of the powder adhesive at 100° C., Gb?(100) is 1.0×105 Pa or less and Gt?(100)/Gb?(100) is 1.2 or more.

Abstract: An electrophotographic developer set comprising a toner comprising a thermoplastic resin and a wax, and a powder adhesive comprising a thermoplastic resin and a wax, wherein where Ea (mmol/g) denotes an ester group concentration of the wax contained in the toner, Na (mass %) denotes a content of the wax in the toner, Eb (mmol/g) denotes an ester group concentration of the wax contained in the powder adhesive, and Nb (mass %) denotes a content of the wax in the powder adhesive, the Ea, the Na, the Eb and the Nb satisfy the following formulae: 0.00?Ea?2.45, 2.50?Eb?3.60, and 0.80?Nb/Na.

Abstract: Provided is an electrophotographic developer set having a toner and a powder adhesive, wherein the toner comprises a thermoplastic resin A; the powder adhesive comprises a thermoplastic resin B and a wax A; the wax A has two or more ester groups in the molecule; the thermoplastic resin B has an ester group; and in a viscoelasticity measurement, with Gt?(100) (Pa) being a storage elastic modulus at 100° C. of the toner, and Gb?(100) (Pa) being a storage elastic modulus at 100° C. of the powder adhesive, Gb?(100) is 1.00×105 Pa or less, and Gt?(100)/Gb?(100) is 1.20 or more, as well as a method for producing a bonded product using the above electrophotographic developer set.

Abstract: A toner is provided, which has a toner particle that contains a binder resin, and organosilicon polymer particle on a surface of the toner particle. A methanol concentration a (vol %) of the organosilicon polymer particle in a wettability test and a methanol concentration b (vol %) of the toner particle in a wettability test satisfy Expression (I) below: |a?b|?25??(I), and an adhesion index of the organosilicon polymer particle on a polycarbonate film, calculated on the basis of Expression (II) below, is not more than 3.

Abstract: A toner comprising a toner particle comprising a binder resin and organosilicon polymer particles on a surface of the toner particle, wherein the binder resin comprising an amorphous resin and a crystalline polyester resin, an absolute value |SPcpes?SPsi| of a difference between an SP value (SPsi) of the organosilicon polymer particles and an SP value (SPcpes) of the crystalline polyester resin is not more than 2.00 (cal/cm3)1/2, and an amount of adsorbed water in the organosilicon polymer particles at a temperature of 30° C. and a humidity of 80% RH is not more than 20 mg/g.

Abstract: A toner comprising: a toner particle that comprises a core particle comprising a binder resin, and a shell layer comprising a thermoplastic resin on a surface of the core particle; and organosilicon polymer particles on a surface of the toner particle, wherein a peak top molecular weight of the thermoplastic resin, according to measurement by gel permeation chromatography, is 30000 to 500000, a number-average primary particle diameter of the organosilicon polymer particles is 10 nm to 500 nm, and an absolute value of a difference (?SP) between an SP value (SPSi) of the organosilicon polymer particles and an SP value (SPSh) of the thermoplastic resin present in the shell layer is not more than 2.30.

Abstract: A toner comprising a toner particle and an external additive on a surface of the toner particle, wherein the toner particle comprises a core particle containing a binder resin and a shell layer on a surface of the core particle, the shell layer comprises a compound containing nitrogen atoms, the external additive comprises an organosilicon polymer particle, and a difference between the work function Wa of the organosilicon polymer particle and the work function Wb of the toner particle satisfies the following formula (A): 0.00 eV<Wa?Wb?0.

Abstract: A toner including: a toner particle that includes a binder resin; and an external additive, wherein a toner hardness A N/m and a toner hardness B N/m satisfy B?600 and B/A?1.30, in the formulas, the toner hardness A is an average value of a slope in a displacement region of from 0.00 ?m to 0.20 ?m when measuring the toner under a condition of a load application speed of 0.83 ?N/sec, and the toner hardness B is an average value of a slope in a displacement region of from 0.00 ?m to 0.20 ?m when measuring the toner under a condition of a load application speed of 2.50 ?N/sec.

Abstract: A toner including: a toner particle that includes a binder resin and a crystalline material, wherein the binder resin includes a vinyl resin having an ether structure, and where intensities of secondary ion mass/secondary ion charge number (m/z) of 59, 44, and 135 are denoted by A (ppm), B (ppm), and C (ppm), respectively, in a measurement of the toner by time-of-flight secondary ion mass spectrometry, the intensities at 100 nm from the surface of the toner satisfy the relationships of the following formulas (1) and (2): C/(A+B)?1.00??(1) (A+B)?2000??(2).

Abstract: Toner comprising a toner particle containing binder resin and colorant, wherein fine particles A (organosilicon polymer particles containing an organosilicon polymer) and fine particles B are present at the toner particle surface, the organosilicon polymer has structure in which Si and O are alternately bonded to each other, portion of Si in the organosilicon polymer has R1—SiO3/2 structure, and content of the fine particles A, proportion for area of peak originating with silicon having the structure, volume resistivity of the fine particles B, total coverage ratio of the toner particle surface by the fine particles A embedded in the toner particle (A1) and the fine particles A not embedded in the toner particle (A2), percentage for area occupied by the fine particles A2, content of the fine particles B in the toner, and percentage for area occupied by the fine particles B embedded in the toner particle are prescribed range.

Abstract: A movable contact includes a conductive member having an outer end having substantially a rectangular shape when viewed from above the conductive member. The conductive member includes a dome portion, a flange extending in a direction away from the dome portion, a connection portions provided at each of four corners of the rectangular shape, and a contact portion extending away from the flange. The connection portion, a first boundary portion where the connection portion is connected to the flange, and a second boundary portion where the connection portion is connected to the contact portion may constitute a drawn portion. Alternatively, the first and second boundary portions may be curved to be concave toward the dome portion.

Abstract: A toner comprising: a toner particle containing a binder resin; and an external additive, wherein the external additive comprises an external additive A and B; the external additive A has a number-average primary particle diameter of 35 to 300 nm, a dielectric constant ?ra of not more than 3.50, and a shape factor SF-1 of not more than 114, and is an organosilicon polymer particle having a particular T3 unit structure; a proportion for an area of a peak originating from silicon having the T3 unit structure with reference to that of all silicon elements is 0.50 to 1.00; the external additive B has a number-average primary particle diameter of from 5 nm to 25 nm and a dielectric constant ?rb that satisfies formula (A): 0.50??rb??ra (A); and a coverage ratio by the external additive B for the toner particle surface is 50% to 100%.

Abstract: A toner comprising an organosilicon polymer particle and a toner particle containing a binder resin and a wax, wherein the organosilicon polymer particle contains an organosilicon polymer, a part of silicon atoms in the organosilicon polymer has a T3 unit structure, a ratio of an area of peaks derived from silicon having the T3 unit structure relative to a total area of peaks derived from all silicon element contained in the organosilicon polymer particle is from 0.70 to 1.00 in 29Si-NMR measurement of the organosilicon polymer particle, a plurality of domains of the wax are present in a cross-section of the toner particle, the wax is an ester wax, the average long diameter of the domains of the ester wax is from 0.03 ?m to 2.00 ?m, and the SP value SPw of the wax is from 8.59 to 9.01.