摘要:
A toner including a binder resin, wherein the toner includes a tetrahydrofuran (THF)-insoluble component in a range of from 10% by mass through 40% by mass, wherein the toner has a main peak in a range of from 12,000 through 18,000 in a molecular weight distribution of a THF-soluble component as measured by gel permeation chromatography (GPC), wherein the main peak has a half value width in a range of from 20,000 to 50,000, and wherein the toner includes a component having a molecular weight of 2,000 or less in a range of from 10.0% by mass through 20.0% by mass and a component having a molecular weight of 100,000 or more of 8.0% by mass or less.
摘要:
Provided is a toner including a binder resin, and a charge-controlling agent, wherein a volume average particle diameter X of the toner after a stress treatment satisfies Formula (1), and an amount Y of fine toner particles having particle diameters of 3 micrometers or smaller and circularity of 0.70 or less satisfies Formula (2).
摘要:
Provided is a toner including a binder resin, a release agent, and a charge-controlling agent, wherein the toner includes toner particles having particle diameters of 3 micrometers or smaller, among the toner particles having particle diameters of 3 micrometers or smaller, a proportion of the toner particles having an average circularity of 0.70 or greater but 0.85 or less in all of the toner particles is 10% by number or greater but less than 20% by number and a proportion of the toner particles having an average circularity of less than 0.70 in all of the toner particles is 10% by number or less.
摘要:
Provided is a toner including a binder resin, wherein the toner includes a THF-insoluble component in an amount of from 10% by mass through 40% by mass, a molecular weight distribution of a THF-soluble component of the toner measured by gel permeation chromatography (GPC) has a main peak between 10,000 and 16,000, and a half value width of the main peak is a molecular weight of from 60,000 through 90,000, and the THF-soluble component of the toner includes a component having a molecular weight of 2,000 or less in an amount of from 15.0% by mass through 25.0% by mass, and a component having a molecular weight of 100,000 or greater in an amount of 10.0% by mass or less as measured by GPC.
摘要:
A developing device including a developing roller and a developer layer forming member for forming a layer of a one component developer on the roller. The developing device satisfies the relationships (1) 20 Q/M>13.1α−44.5, wherein X represents the ratio (% by weight) of the wax present on the surface of the developer to the total of the wax therein; α represents the angle formed by a tangent line to the member at a point B, which is the center of the contact zone of the member contacted with the roller, and another tangent line at a point A thereof 0.5 mm apart from the point B toward the tip of the member, wherein α is 0 to π/2 radian; and Q/M represents the charge quantity (μC/g) of the toner per unit weight.
摘要:
A resin powder contains a resin containing particles, wherein the proportion of the particles in an aspect ratio range X represented by the following inequality 1 is 50 percent by number or more in a number distribution of an aspect ratio of the resin powder: A50−1≤X≤A50+1 Inequality 1, where A50 represents a median of the aspect ratio.
摘要:
A screen formation system includes: a vehicle condition determination processing unit that determines a vehicle condition; a storage device containing, recorded therein, a candidate screen map in which vehicle conditions and candidate screens are interrelated, each candidate screen representing a screen that is highly likely to be shown on a display unit next after a current screen on the basis of the determined vehicle condition; a candidate screen acquisition processing unit that acquires the candidate screen corresponding to the vehicle condition by referring to the candidate screen map; an off-screen drawing processing unit that draws the acquired candidate screen as an off-screen while the current screen is shown on the display unit; and a screen formation processing unit that shows the off-screen on the display unit responsive to an instruction for a screen change from the current screen made by an operator.
摘要:
A method for preparing a toner including as toner components at least a binder resin, a pigment and a dispersant for the pigment. The method includes firstly mixing at least the pigment and the dispersant to prepare a first mixture; secondly mixing the first mixture with the other toner components including at least the binder resin to prepare a second mixture; kneading the second mixture using an open roll kneader; pulverizing the kneaded material to prepare a colored powder; and classifying the colored powder to prepare particles of the toner, wherein the binder resin includes a polyester resin, and the dispersant includes a fatty acid ester.
摘要:
An assistance vehicle is connected to a dump truck on or at bases of ascending paths and power is supplied as auxiliary power from the assistant vehicle A to a driving motor in the dump truck. Because of this features a driving unit of the dump truck (a generator for supplying power to the driving motor in the dump truck or a generating engine for driving the generator) is required only to have the performance sufficient for running on horizontal paths, which enables size reduction of the driving unit and as a result cost reduction of the dump truck. Further the assistant vehicle is connected to the dump truck and moves together with the dump truck, so that a freedom degree of the dump truck for a traveling path can substantially be improved.
摘要:
A display device includes a substrate that is provided on a display face side, an opposed substrate that is provided opposing the substrate, a display layer that is provided between the substrate and the opposed substrate and is filled with a dispersion liquid in which white particles and black particles are dispersed in a dispersion medium, and a particle constrained layer that is provided in the display layer to allow the particles to move in a thickness direction of the display layer and to prevent the particles from moving in an in-plane direction of the display layer. A void ratio of the particle constrained layer of the substrate side is higher than that of the opposed substrate side.