摘要:
A rotary-body driving-force transmitting mechanism transmits a driving force from a driving-force source to a rotary body. A rotary-inertial-body driving-force transmitting mechanism transmits the driving force to a rotary inertial body that suppresses a velocity fluctuation in the rotary body. A rotational velocity shift mechanism shifts the rotational velocity. The rotary inertial body, the rotary-body driving-force transmitting mechanism, and the rotary-inertial-body driving-force transmitting mechanism are provided coaxially with a rotary shaft of the rotary body. A satellite frictional gear mechanism is used as the rotational velocity shift mechanism.
摘要:
A disclosed development device includes: a latent image carrier; a conveying member disposed so as to face the latent image carrier, the conveying member having plural electrodes insulated from one another and arranged at predetermined intervals so as to generate an electric field for moving toner on the conveying member; a voltage application unit applying a voltage of n phases (n is a positive integer not less than one) to the electrodes so as to form a cloud of the toner and the toner is adhered to the latent image carrier so as to form a visualized toner image; a toner supply unit supplying the toner to the conveying member; and a height adjusting member adjusting a uniform height for a toner layer of the toner immediately before a development area on the conveying member in which development is performed.
摘要:
A developing device, process cartridge, and image forming apparatus that use ETH development, and are capable of forming good multi-color images with a simple construction, and are capable of preventing the dispersal of powder. The developing device is for developing latent images on a latent image carrying member by applying powder to the latent image carrying member, and comprises: a transport member disposed in opposition to the latent image carrying member and having a plurality of transport electrodes that generate a progressive wave electric field to move the powder; a voltage supply device for applying a multi-phase voltage to the transport electrodes; and a transport member surface potential determination device for determining the surface potential of the transport member. The voltage supply device in the developing device according to the present invention applies a multi-phase voltage to the transport electrodes so that the surface potential on the transport member is between the potential of the image portions and the potential of the non-image portions of the latent image carrying member.
摘要:
An image forming apparatus includes a toner-layer filling-rate lowering unit that causes a toner layer of toner images to be formed on an image carrier so that the toner layer has sufficient optical transparency for exposing and the toner-layer filling rate is set relatively low; and a toner rolling rate adjusting unit that rolls the toner images at a predetermined toner rolling rate in accordance with the toner-layer filling rate when the toner images are transferred to the transferring/fixing unit.
摘要:
A corona charger includes a case provided in the vicinity of a device to be charged. The case includes an opening facing the device, a discharge electrode, a first charging region, and a second charging region. The discharge electrode provided inside the case and supplied with a voltage so as to generate a corona discharge charges a surface of the device from the opening by supplying the corona discharge to the surface. The first charging region includes no grid electrode at a position upstream of the opening in a surface moving direction of the device. The second charging region includes a grid electrode to which a predetermined voltage is applied at a position downstream of the opening. The voltage applied to the discharge electrode is an alternating current (AC) voltage superimposed on a direct current (DC) voltage.
摘要:
A disclosed development device includes: a latent image carrier; a conveying member disposed so as to face the latent image carrier, the conveying member having plural electrodes insulated from one another and arranged at predetermined intervals so as to generate an electric field for moving toner on the conveying member; a voltage application unit applying a voltage of n phases (n is a positive integer not less than one) to the electrodes so as to form a cloud of the toner and the toner is adhered to the latent image carrier so as to form a visualized toner image; a toner supply unit supplying the toner to the conveying member; and a height adjusting member adjusting a uniform height for a toner layer of the toner immediately before a development area on the conveying member in which development is performed.
摘要:
A toner contained in a hopper is fed to an electrostatic conveyance member by a supply roller. With an actuator of the electrostatic conveyance member functioning, the toner is conveyed while being electrically charged at the same time, and is then supplied to a development roller. A thin layer of toner is formed on the development roller under the effect of an electric field. Since the toner is formed and charged without a mechanical layer thickness controlling member such as a doctor blade, mechanical stress acting on the toner is reduced.
摘要:
A developing device includes a carrying roller configured to carry a developer. A storing section is configured to store the developer. A supplying roller is configured to supply the developer to the carrying roller by contacting the developer to the carrying roller, the supplying roller extending substantially parallel to the carrying roller. A conveying unit is configured to convey the developer stored in the storing section to the supplying roller. The conveying unit includes a pump with a stator having a through-hole, and a rotor disposed in the through-hole of the stator and spirally extended such that a cavity to convey the developer is formed between an outer peripheral surface of the rotor and an inner peripheral surface of the through-hole of the stator, the rotor being configured to convey the developer in the cavity in an axial direction of the rotor by eccentrically rotating. An air supplying unit is configured to supply air to the developer conveyed by the pump to scatter and fluidize the developer.
摘要:
An optical switch comprising an array of voltage-controlled interferometric switching elements. Different configurations and modes of operation are possible, but in each configuration the elements are arranged relative to the input and output fibers, such that a beam of light is incident or outgoing at an angle of 45 degrees to the surface of a corresponding element. This permits each element to be electronically controlled to either transmit or reflect light, such that the output beam exits the switch either parallel to or perpendicular to the input beam.
摘要:
A barrier layer (20, 62) for an integrated circuit structure is disclosed. The barrier layer (20, 62) is a refractory metal silicon compound, such as a refractor metal silicon nitride compound, formed in an amorphous state. The barrier layer (20, 62) has a relatively low composition ratio of silicon, and of nitrogen if present, to provide low resistivity in combination with the high diffusion barrier properties provided by the amorphous state of the film. A disclosed example of the barrier layer (20, 62) is a compound of tantalum, silicon, and nitrogen, formed by controlled co-sputtering of tantalum and silicon in a gas atmosphere including nitrogen and argon. The barrier layer (20) may be used to underlie copper metallization (22), or the barrier layer (62) may be part or all of a lower plate in a ferroelectric memory capacitor (70).