Abstract: A reversibly allochroic toner contains a binder resin and a colorant. The colorant reversibly switches between first and second color states in response to temperature changes. The colorant exhibits a hysteresis in a temperature-color state curve thereof in which the following relationships are satisfied. Tr<TL2<TL1<TH1<TH2<Tg TH2?50° C. 20° C.?Tr?30° C. where, TH1 is a temperature at which the colorant starts to change from the first color state to the second color state, TH2 is a temperature at which the colorant completely changes to the second color state, TL1 is a temperature at which the colorant starts to change from the second color state to the first color state, TL2 is a temperature at which the colorant completely changes to the first color state, and Tg is a glass transition temperature of the binder resin.

Abstract: A toner set is used in a printing system that is capable of recycling a print medium and includes a first image forming portion which forms a toner image on the medium with a decolorable toner which is decolored by being heated at a temperature Te (° C.) or higher, a second image forming portion which forms a toner image on the medium with a non-decolorable toner and forms an image on the medium with at least one of the toners, and a decoloring apparatus provided with a heating portion which heats the medium on which a toner image is formed by the image forming apparatus at the temperature Te (° C.) or higher. When heated by the decoloring apparatus, the decolorable toner may be decolored without causing hot offset.

Abstract: A vehicle includes a controller. When a brake operation amount has increased, the controller calculates an estimated input value at the time when a main battery is charged in response to an increase in the brake operation amount, on the basis of a current speed and an amount of increase in brake operation amount. The controller discharges the main battery for charging an auxiliary battery at a current value that is calculated on the basis of the estimated input value by controlling an operation of a DC-DC converter before charging the main battery in response to an increase in the brake operation amount. Thus, it is possible to cancel a bias of salt concentration that is developed during charging by a bias of salt concentration that is developed during discharging, so, after the main battery has been charged, it is possible to suppress development of a bias of the salt concentration and suppress an increase in the internal resistance value of the main battery.

Abstract: According to one embodiment, there is provided an image forming apparatus which forms an decolorable image and an non-decolorable image by fixing a toner image including a decolorable toner and a toner image including a non-decolorable toner or a medium. The decolorable toner has a first peak of a loss tangent tan ? at a temperature TE1, and the non-decolorable toner has a first peak of a loss tangent tan ? at a temperature TU1. A difference between the temperature TE1 and the temperature TU1 is within 20° C.

Abstract: According to one embodiment, a method of manufacturing an erasable toner includes washing toner particles including therein a coloring material that is erasable by heating and a binder resin to obtain a toner cake having the amount of water of 20% by weight to 60% by weight, and drying the toner cake at 40° C. or more and at a temperature which is lower than the complete color erasing temperature of the toner particles by 30° C. or more.

Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.

Abstract: An electrophotographic toner produced by mixing a dispersion of colorant particles containing a colorant and a dispersion of release agent particles containing a release agent and having a volume average particle diameter smaller than that of the colorant particles, aggregating the colorant particles and the release agent particles in the dispersion to produce first aggregates, mixing a dispersion of resin particles containing a binder resin and having a volume average particle diameter smaller than that of the release agent particles in the dispersion containing the first aggregates, and aggregating the first aggregates and the resin particles in the dispersion of the first aggregates and the resin particles to coat the first aggregates with the resin particles, producing second aggregates.

Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.

Abstract: A recording device includes a liquid ejection head, a support unit that support a paper sheet, a transportation path along which the paper sheet is reversed and transported, and a transportation roller that transports the paper sheet, wherein a liquid absorbent is provided downstream in the transportation direction of the paper sheet relative to the transportation roller, and liquid absorbents are provided upstream in the transportation direction of the paper sheet relative to the transportation roller, and second liquid absorbent is provided between the liquid absorbent and the liquid absorbent.

Abstract: A method for manufacturing a secondary battery determines the amount of the non-aqueous electrolyte to be injected into the bound cell case on the basis of an amount of air space in a positive electrode active material layer, a swelling rate of the positive electrode active material layer, an amount of air space in a negative electrode active material layer, a swelling rate of the negative electrode active material layer, an amount of air space in a separator sheet, a total surface area of an opposing surface of the positive electrode active material layer and the negative electrode active material layer, and a reference electrolyte amount per unit surface area, which is determined in accordance with a binding rate.

Abstract: Provided is a method for producing a toner including: aggregating colorant particles and release agent particles, thereby forming aggregates containing the colorant particles and the release agent particles; aggregating binder resin particles and the obtained aggregates containing the colorant particles and the release agent particles, thereby forming toner particle precursors; and aggregating and fusing the obtained toner particle precursors, thereby forming toner particles, wherein when the average circularity of the toner particles is represented by Rt, Rt satisfies the following formula (1): 0.85?Rt?0.92 (1).

Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.

Abstract: Disclosed is a toner obtained by coating surfaces of core particles including at least a binder resin having a carboxyl group and a coloring agent with successive coatings of a water-soluble crosslinking agent capable of crosslinking with a carboxyl group and a water-soluble polymer having a carboxyl group, which have been successively applied on the core particles and crosslinked with each other. The thus-formed toner is provided with a good harmony of favorable fixability represented by a low lowest fixable temperature and favorable storage stability represented by little aggregation after standing at 50° C. for 8 hours.

Abstract: According to one embodiment, an erasable toner of the present embodiment includes a binder resin, an electron donating coloring agent, an electron accepting developer, and a discoloring temperature regulating agent, in which when measuring for the first time by differential thermal scanning calorimetry, an endothermic peak temperature Tg of the binder resin and an endothermic peak temperature Th of the discoloring temperature regulating agent satisfy Tg<Th and Th?Tg>25° C.

Abstract: According to one embodiment, a method of manufacturing an erasable toner includes washing toner particles including therein a coloring material that is erasable by heating and a binder resin to obtain a toner cake having the amount of water of 20% by weight to 60% by weight, and drying the toner cake at 40° C. or more and at a temperature which is lower than the complete color erasing temperature of the toner particles by 30° C. or more.

Abstract: An image forming apparatus that includes an exposure portion to expose a surface of an image carrier to form an electrostatic latent image; a developing device which includes an agitating roller to agitate developer, a developing roller to transfer toner of the developer on a surface of the image carrier and a toner concentration sensor to detect a toner concentration, the developing device developing the electrostatic latent image formed on the image carrier to form a toner image; a drive source to independently drive to rotate the developing roller and the agitating roller; and a control unit to control the drive source to change a rotational frequency of at least one of the developing roller and the agitating roller depending on the toner concentration detected by the toner concentration sensor.

Abstract: A color-fadable developer contains a binder resin, a color generation compound and a color developing agent. When the developer is heated from a temperature range of 0° C. to 20° C. to a temperature range of 150° C. to 180° C. at a temperature increase rate range of 5° C./min to 10° C./min a first time and a second time, a first differential scanning calorimetry curve based on a measurement by differential scanning calorimetry during the first heating has an endothermic peak that is missing from a second differential scanning calorimetry curve based on a measurement differential scanning calorimetry during the second heating, and has a different peak than the endothermic peak caused by a glass transition point of a binder resin.

Abstract: A recording device includes a liquid ejection head, a support unit that support a paper sheet, a transportation path along which the paper sheet is reversed and transported, and a transportation roller that transports the paper sheet, wherein a liquid absorbent is provided downstream in the transportation direction of the paper sheet relative to the transportation roller, and liquid absorbents are provided upstream in the transportation direction of the paper sheet relative to the transportation roller, and second liquid absorbent is provided between the liquid absorbent and the liquid absorbent.

Abstract: A recording apparatus includes a transport unit that transports a recording medium, a recording unit, a discharge unit provided downstream from the recording unit, and a guide portion that is provided upstream from the discharge unit in a transport direction and that guides the recording medium to the discharge unit. The guide portion has a first guide section that guides the recording medium at a side end of the recording medium in a width direction that is orthogonal to the transport direction and a second guide section that guides the recording medium at a location closer to a central area of the recording medium than the first guide section.

Abstract: Disclosed is a toner obtained by coating surfaces of core particles including at least a binder resin having a carboxyl group and a coloring agent with successive coatings of a water-soluble crosslinking agent capable of crosslinking with a carboxyl group and a water-soluble polymer having a carboxyl group, which have been successively applied on the core particles and crosslinked with each other. The thus-formed toner is provided with a good harmony of favorable fixability represented by a low lowest fixable temperature and favorable storage stability represented by little aggregation after standing at 50° C. for 8 hours.