摘要:
Provided is a development device including: a development roller in which continuous spiraling inclined grooves having different inclinations with respect to an axial direction are formed so as to cross each other; and a feed roller which is in contact with the development roller and feeds toner to the development roller, wherein transportation force, which is used for transporting the toner on the development roller from one side to the other side of the axial direction of the development roller, is generated by the rotation of the feed roller.
摘要:
A toner includes toner base particles containing at least a binder resin, a coloring agent, and a release agent and having a volume-average particle size of 2 to 6 μm; a small particle size silica having an average particle size of 7 to 15 nm; a large particle size silica having an average particle size of 50 to 400 nm; and a small particle size transition alumina obtained by a dawsonite method and having an average particle size of 7 to 20 nm.
摘要:
A toner includes toner base particles containing at least a binder resin, a coloring agent, and a release agent and having a volume-average particle size of 2 to 6 μm; at least two types of silica each having a different average particle size; at least one type of electron-conductive oxide semiconductor fine particles selected from titania, transition alumina, zinc oxide, and tin oxide; and at least one type of ion-conductive oxide semiconductor fine particles selected from cerium oxide and stabilized zirconia.
摘要:
A toner includes at least a binder resin, a colorant, and a release agent. The toner contains base toner particles having an average volume particle size of 2 μm to 6 μm, small particle silica having an average volume particle size of 7 nm to 15 nm, large particle silica having an average volume particle size of 50 nm to 400 nm, small particle transition alumina having an average volume particle size of 7 nm to 20 nm, and large particle α-type alumina having an average volume particle size of 50 nm to 400 nm or large particle cerium oxide having an average volume particle size of 50 nm to 400 nm.
摘要:
A developing apparatus includes: a housing which contains toner; a toner supporting roller; and a regulating blade, wherein bias voltage is applied to the regulating blade, the toner includes, an insulating external additive and an electrically-conductive external additive, satisfies any of the following first to third conditions, the first condition: a volume average grain diameter of the electrically-conductive external additive is larger than a volume average grain diameter of the insulating external additive, the second condition: a volume average grain diameter of the electrically-conductive external additive is larger than a volume average grain diameter of the insulating external additive in which coverage in the toner is higher than that of the electrically-conductive external additive, and the third condition: coverage of the electrically-conductive external additive in the toner is higher than coverage of the insulating external additive that is larger in volume average grain diameter than the electrically-conductive external additive.
摘要:
A developing roller having a first inclined groove and a second inclined groove, which are continuous in a helical shape inclined with respect to an axial direction and a circumferential direction and which intersect with each other, formed in the surface thereof, wherein the first inclined groove and the second inclined groove have different groove depths.
摘要:
An image forming apparatus includes: a latent image holder that holds on its surface an electrostatic latent image in which an image portion and a non-image portion have different potentials; a toner carrying roller that carries a toner layer including both contact toner which directly contacts a surface of the roller and non-contact toner which contacts the contact toner but does not contact the surface of the roller; and an electric field forming unit that forms an alternating electric field to cause an electric field strength exerted between the non-image portion on the surface of the latent image holder and the surface of the toner carrying roller to be lower than a contact toner fly start electric field strength and higher than a non-contact toner fly start electric field strength, between the latent image holder and the toner carrying roller, as a toner fly electric field.
摘要:
An image communication apparatus configured to communicate with a server on a network, and configured to communicate with at least one external apparatus through a public network, includes: a destination receiving unit receiving a designation of a destination; a reading unit reading a document; a first generating unit generating first image data based on the document read by the reading unit; a first transmitting unit transmitting the first image data generated by the first generating unit to the server; a transmission-data generating unit generating transmission data including access information and second image data having a smaller amount of data than that of the first image data, the access information being for acquiring the first image data from the server, and a second transmitting unit configured to transmit the transmission data generated by the transmission-data generating unit, to the destination through the public network.
摘要:
A reconfigurable operation apparatus includes a reconfigurable circuit, a storage unit and a control unit. The reconfigurable circuit has a plurality of small circuits and reconfigures a circuit using the small circuit selected from the plurality of small circuits based on recorded circuit information. The storage unit stores first and second circuit information which corresponds to first and second compression circuits, respectively. The control unit reconfigures the reconfigurable circuit into the first or second compression circuit by recording the first or second circuit information in the reconfigurable circuit in accordance with an input data string.
摘要:
An analyzer in which optical measurement is performed with respect to a sample placed in optically transparent cells of an analysis tool includes a light source unit, a light-receiving unit, a tray on which the tool is placed, and a drive mechanism for driving the tray. The tray includes a holding section that holds the tool in a predetermined position. The drive mechanism reciprocates the tray between a first position where the tool placed on the tray is exposed to the outside of the analyzer and a second position where the tool is accommodated inside the analyzer. The light source unit is disposed so that emitted light is incident on a cell of the tool when the tray is located in the second position. The light-receiving unit is disposed so as to receive light transmitted through the cell when the tray is located in the second position.