Abstract: An inkjet recording apparatus includes two or more line recording heads and inks each accommodated in a corresponding one of the line recording heads. The line recording heads perform ink ejection onto a recording medium in a specific order at a regular ejection interval T. The ejection interval T is at least 300 milliseconds and no greater than 530 milliseconds. The line recording heads include at least a first line recording head that performs ink ejection onto the recording medium first and a second line recording medium that performs ink ejection onto the recording medium next to the first line recording head. Each of the inks contains a pigment, a water-soluble organic solvent, and water. The water-soluble organic solvent includes a glycol ether compound.

Abstract: An inkjet ink contains pigment particles containing a pigment, binder resin particles containing a binder resin, and wax particles containing a wax. A ratio (DW/DB) of a volume median diameter DW of the wax particles to a volume median diameter DB of the binder resin particles is at least 1.45. A ratio (DW/DP) of the volume median diameter DW of the wax particles to a volume median diameter DP of the pigment particles is at least 1.45. The volume median diameter DW of the wax particles is no greater than 400 nm. An absolute value of a difference ?AV between an acid value AVB of the binder resin particles and an acid value AVW of the wax particles is no greater than 11 mgKOH/g.

Abstract: A toner includes a plurality of toner particles each including a toner mother particle and an external additive adhering to a surface of the toner mother particle. The external additive includes hydrotalcite particles. The hydrotalcite particles have a number average primary particle diameter of at least 80 nm and no greater than 1,000 nm. The hydrotalcite particles have a volume resistivity of no greater than 1.0×105 ?·cm. An amount of the hydrotalcite particles is at least 0.5 parts by mass and no greater than 3.0 parts by mass relative to 100 parts by mass of the toner mother particles.

Abstract: An electrostatic latent image developing toner has positive chargeability and includes a plurality of toner particles. The toner particles each include primary domains made from a primary mixture. The primary mixture contains a wax and an antioxidant. The antioxidant is contained in an amount of at least 1.8 parts by mass and no greater than 15.8 parts by mass relative to 100 parts by mass of the primary mixture.

Abstract: A toner includes a plurality of toner particles each including a toner mother particle and an external additive adhering to a surface of the toner mother particle. The external additive includes hydrotalcite particles. The hydrotalcite particles have a number average primary particle diameter of at least 80 nm and no greater than 1,000 nm. The hydrotalcite particles have a volume resistivity of no greater than 1.0×105 ?·cm. An amount of the hydrotalcite particles is at least 0.5 parts by mass and no greater than 3.0 parts by mass relative to 100 parts by mass of the toner mother particles.

Abstract: An electrostatic latent image developing toner has positive chargeability and includes a plurality of toner particles. The toner particles each include primary domains made from a primary mixture. The primary mixture contains a wax and an antioxidant. The antioxidant is contained in an amount of at least 1.8 parts by mass and no greater than 15.8 parts by mass relative to 100 parts by mass of the primary mixture.

Abstract: A magnetic toner includes toner particles. The toner particles contain a binder resin and a magnetic powder. The binder resin includes a crystalline polyester resin. The magnetic powder has a coating of a melamine resin. Preferably, the crystalline polyester resin has a solubility parameter (SPC) of no less than 9.5, and the solubility parameter (SPC) of the crystalline polyester resin and a solubility parameter (SPM) of the melamine resin satisfy formula (1) shown below. SPC?SPM>1.

Abstract: A magnetic toner includes toner particles. The toner particles contain a binder resin and a magnetic powder. The binder resin includes a crystalline polyester resin. The magnetic powder has a coating of a melamine resin. Preferably, the crystalline polyester resin has a solubility parameter (SPC) of no less than 9.5, and the solubility parameter (SPC) of the crystalline polyester resin and a solubility parameter (SPM) of the melamine resin satisfy formula (1) shown below. SPC?SPM>1.

Abstract: A control device for hybrid vehicle drive system includes an engine rotation speed control device performing a rotation speed control of an engine so that a rotation speed of an output shaft of the engine is assumed to be equal to a next gear shift stage input shaft rotation speed when an operation amount of an accelerator pedal increases from an operation amount smaller than a first predetermined amount to an operation amount greater than a second predetermined amount, at which gear stages are switched from a current gear shift stage to a next gear shift stage whose gear ratio is greater than the current gear shift stage, within a priority determining time, a front clutch engagement commanding device, a front clutch engaging device, a release side frictional engagement element releasing device, a motor generator rotation speed control device, and an engagement side frictional engagement element engaging device.

Abstract: A magnetic one-component developing toner including a plurality of toner particles is provided. Each of the plurality of toner particles contains a binder resin including a polyester resin; and a magnetic powder. Water absorptions of the toner and the magnetic powder shown in an environment of 10° C. and 20% RH and in an environment of 28° C. and 80% RH respectively fall in predetermined ranges.

Abstract: A developer of the present disclosure contains: toner particles each containing a binder resin and a magnetic powder; cross-linked polyester resin particles having a particle size of 2 ?m or more and 30 ?m or less; and an external additive. The toner particles and the cross-linked polyester resin particles are externally treated with the external additive in the same manner.

Abstract: A developer of the present disclosure contains: toner particles each containing a binder resin and a magnetic powder; cross-linked polyester resin particles having a particle size of 2 ?m or more and 30 ?m or less; and an external additive. The toner particles and the cross-linked polyester resin particles are externally treated with the external additive in the same manner.

Abstract: A magnetic one-component developing toner including a plurality of toner particles is provided. Each of the plurality of toner particles contains a binder resin including a polyester resin; and a magnetic powder. Water absorptions of the toner and the magnetic powder shown in an environment of 10° C. and 20% RH and in an environment of 28° C. and 80% RH respectively fall in predetermined ranges.

Abstract: The positively chargeable magnetic toner contains a binder resin and a magnetic powder with a specified octahedral shape, in which a frictional charged amount of the magnetic powder with a ferrite carrier, and a particle number of the magnetic powder exposed on a surface of the positively chargeable magnetic toner per 1 ?m2 area of the positively chargeable magnetic toner in an electron microscope image, are defined as values within predetermined ranges.

Abstract: A magnetic toner for a single component developer includes in a polyester resin at least a nigrosine dye that is immiscible with the polyester resin, a nigrosine dye that is miscible with the polyester resin, and a magnetic powder. The nigrosine dye that is immiscible with the polyester resin has an average diameter of 0.2 to 4 ?m when dispersed in the polyester resin.

Abstract: A magnetic toner for a single component developer is provided, the magnetic toner including in a polyester resin at least a nigrosine dye that is immiscible with the polyester resin, a nigrosine dye that is miscible with the polyester resin, and a magnetic powder, the nigrosine dye that is immiscible with the polyester resin having an average diameter of 0.2 to 4 ?m when dispersed in the polyester resin.

Abstract: An image formation apparatus including: a two-component developer that contains toner and carrier; a photoconductor that forms a toner image by the two-component developer; and an intermediate transfer body to which the toner image on the photoconductor is transferred. The intermediate transfer body has a surface layer that is provided on a transfer surface of the intermediate transfer body onto which the toner image is transferred and that contains a first fluoropolymer. The carrier has a carrier core particle and a coat layer that is provided on a surface of the carrier core particle and that contains a second fluoropolymer. The toner is positively charged.

Abstract: The toner according to the present invention is a toner containing toner particles, comprising microparticle-deposited toner particles carrying polymerization microparticles having a particle diameter of 100 to 2,000 nm deposited on the surface of primary polymerization particles having a particle diameter of 3 to 12 ?m in an amount of (80) pieces or more with respect to (100) pieces of the toner particles. It is possible to obtain favorable long-term cleaning efficiency of a photosensitive body by using such a toner in an image-forming apparatus, for example, equipped with a cleaning blade for cleaning the photosensitive body.

Abstract: A developer used for an image forming apparatus including the step of forming a color image by using a single photoreceptor and removing a toner remaining on the photoreceptor after the transfer step with a cleaning blade, which developer is composed of a black toner having a circularity of 0.96 or less and a color toner having a circularity of 0.96 or more, in which at least inorganic particles containing Si compound particles and Ti compound particles are externally added to both of the black toner and the color toner, and the amount of the inorganic particles externally added to the black toner and the color toner satisfies the expressions (1) and (2). {Si(C)+Ti(C)}?1.5×{Si(Bk)+Ti(Bk)}??(1) Ti(C)?1.5×Ti(Bk)??(2) (In the expressions, Si(C), Ti(C), Si(Bk) and Ti(Bk) are as described in the specifications.

Abstract: The invention provides a method of manufacturing a magnetic head slider and fixing a bar which improves fabrication accuracy without increasing manufacturing costs. After thin film magnetic head devices are formed on a wafer, the wafer is cut into bars each including two or more magnetic head sliders. The bars are carried and mounted onto a suction plater. A surface of each bar to be processed is brought into direct contact with a suction surface of the suction plate, and is positioned in a plane parallel to the suction surface. An adhesive is applied to the surface of a support substrate. The surfaces opposite to the surfaces to be processed are pressed against the adhesive. The adhesive is allowed to set. Adhesive thickness varies according to variations in thicknesses of the bars. Therefore, the surfaces of the bars to be processed can be kept aligned with a reference plane.