摘要:
In an image forming apparatus, a developing device operable with toner or single component type developer has a hard first developing roller and a soft second developing roller. Fine magnetic N-S poles are formed on the periphery of the first roller. The second roller conveys the toner, electrostatically transferred thereto from the first roller, to an image carrier. The device frees a toner image from deterioration due to toner particles charged to a polarity opposite to an expected polarity. The toner forms a uniform thin layer on the first roller and is uniformly charged. Toner for use with this type of developing device is also disclosed.
摘要:
In an image forming apparatus, a developing device of the type developing an electrostatic latent image formed on an image carrier by using single-component type toner has a regulating member for regulating the amount of the toner fed thereto, a first conveying member for conveying the toner regulated by the regulating member and deposited thereon, and a second conveying member for conveying the toner transferred from the first conveying member thereto to the image carrier. The first and second conveying members are each movable at a particular speed in a particular direction. The device is free from problems attributable to oppositely charged toner particles despite the use of the single-component type toner and, in addition, insures attractive images.
摘要:
A developing device for an image forming apparatus and having a relatively hard first developing roller formed with fine N-S magnetic poles on the periphery thereof, and a relatively soft second developing roller for conveying toner electrostatically transferred thereto from the first roller toward a photoconductive drum. The toner is charged by friction while being passed through between the first roller and a blade, and then magnetically deposited on the first roller. At a position where the first and second rollers contact each other, only the adequately charged toner is electrostatically transferred from the first roller to the second roller. The second roller conveys the toner toward the drum. As a result, the toner is brought to a developing position in an amount corresponding to a saturation or maximum image density. The second roller is made up of a metallic conductive core, a semiconductive foam layer, and an insulative surface layer implemented by resin. The real resistance between the core and the surface is selected to be higher than 10.sup.3 .OMEGA. but lower than 10.sup.13 .OMEGA.. The ratio of the real resistance associated with the maximum temperature change to the real resistance at normal temperature is selected to be less than or equal to 4 in absolute value.
摘要:
An arc is formed between a pair of discharge electrodes, a plasma gas separated from a raw material gas flowing substantially in parallel to the arc to form a plasma flame, the raw material gas flowing to the upstream within the plasma flame, and a diamond being deposited on the substrate downstream within the flame.
摘要:
A magnetic sensor is constituted using magnetic sensor chips mounted on stages supported by interconnecting members and a frame having leads in a lead frame. Herein, the stages are inclined upon plastic deformation of the interconnecting members. When the frame is held in a metal mold and the stages are pressed, the interconnecting members are elastically deformed, so that the magnetic sensor chips are bonded onto the stages placed substantially in the same plane and are then wired with the leads. Thereafter, the stages are released from pressure, so that the interconnecting members are restored from the elastically deformed states thereof. When the magnetic sensor chips are combined together to realize three sensing directions, it is possible to accurately measure three-dimensional bearings of magnetism, and the magnetic sensor can be reduced in dimensions and manufactured with a reduced cost therefore.
摘要:
An object of the present invention is to reduce a possibility of existence of a plurality of identical file names in files which are created by a plurality of apparatuses. This is accomplished using a file name generation apparatus having an UMID generation unit (12) generating a globally unique identifier, and a file name generation unit (14) generating a file name including the globally unique identifier generated by the UMID generation unit (12).
摘要:
The present invention aims to be capable of properly measuring the cycle of an external signal even where a timer clock and a CPU clock are operated asynchronously. A timer circuit comprises a timer counter which counts a generation interval of an external signal in sync with the timer clock, a first timer register which fetches therein a counted value of the timer counter in sync with the timer clock, a second timer register which fetches therein the value of the first timer register in sync with the CPU clock, an edge detection circuit which detects a change in the level of the external signal to thereby generate an edge detection signal, and a reload control circuit which outputs a first reload control signal for reloading the count value of the timer counter into the first timer register in sync with the timer clock in accordance with the edge detection signal, and outputs a second reload control signal for reloading the value of the first timer register fetched therein by the first reload control signal into the second timer register in sync with the CPU clock, and which holds the output of the second reload control signal where the next edge detection signal is generated during the interval from after the generation of a first edge detection, the CPU reads the contents of the second timer register, and outputs the second reload control signal after the CPU has read the contents of the second timer register.
摘要:
A microphone package includes a housing, which has a cavity and a sound hole for allowing the cavity to communicate with the exterior, and a microphone chip, which is mounted on the mounting surface so as to detect sound within the cavity. The sound hole is opened in connection with the mounting surface and is surrounded by a projection wall projecting upwardly from the mounting surface at a prescribed position in proximity to the microphone chip.
摘要:
A semiconductor package encapsulating a semiconductor chip provides inner leads and outer leads for establishing electrical connections with the substrate. Herein, a lead frame is set into the metal mold, into which a resin is injected and which is clamped in proximity to the outer leads. Thus, the semiconductor package is sealed so as to avoid unwanted formation of resin burrs around lower surfaces of the inner leads. In addition, a semiconductor device is produced using a package in which a semiconductor chip mounted on a stage and terminals are embedded within a resin. Each terminal provides an electrode surface, an interconnecting portion, and an exposed terminal surface. Herein, an isolation portion is formed as an integral part of the package made by the resin and is arranged in the prescribed area between the electrode surface and the exposed terminal surface.
摘要:
Various crystal forms of 4-(1-((4-methylbenzothiophen-3-yl)methyl)benzimidazol-2-ylthio)butanoic acid from a solvent, and a process for production thereof are provided.