摘要:
A developing apparatus includes a developer carrier carrying a developer on its surface, a developer regulating member regulating layer thickness of the developer, a charge amount control member controlling the charge amount of the developer and a charge supplying apparatus downstream of the charge amount control member. The charge amount control member controls the amount of charges of the developer, by causing the developer fly over the developer carrier, using an AC voltage applied between the developer carrier and the charge amount control member, and by applying the electric charges generated by gas electrolytic dissociation caused by the AC voltage. By this structure, a developing apparatus can be provided which can improve stability of development and image quality, without necessitating delicate arrangement of the component materials of the developer.
摘要:
A developing device includes a developer carrier having a surface carrying a one-component developer thereon, developer control member abutting against the developer carrier to control a thickness of a layer of the developer, and a charge generation device provided downstream of the developer control member, as seen in a direction of a rotation of the developer carrier, and applying electric charge of a single polarity to a developer layer on the developer carrier, wherein the developer is charged under a condition that internal to the developer layer there occurs small aerial discharge caused by an electric field created by electric charge applied to a surface of the developer layer. Thus, the developing device can use a one-component developer, does not require toner having its components subtly adjusted and can cancel toner charged opposite in polarity, to form an image of high quality.
摘要:
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.
摘要:
Voltage applying means applies a pulse voltage between a nozzle and a substrate, the nozzle having a diameter ranging from 0.01 μm to 25 μm, an upper limit voltage (10) of the pulse voltage being equal to or greater than a discharge-inducing minimum voltage (30), that is a voltage required to start discharge of fluid. A lower limit first voltage (20a) is provided immediately before a rise of the pulse voltage, the lower limit first voltage (20a) having a same polarity as that of the upper limit voltage (10), an absolute value of the lower limit first voltage (20a) being set smaller than the discharge-inducing minimum voltage (30). A lower limit second voltage (20b) is provided immediately after a rise of the pulse voltage, the lower limit second voltage (20b) having an opposite polarity as that of the upper limit voltage (10), an absolute value of the lower limit second voltage (20b) being set smaller than the discharge-inducing minimum voltage (30). With this structure, the present invention provides an electrostatic suction type fluid discharge device and an electrostatic suction type fluid discharge method, which simultaneously achieve miniaturization of nozzle, discharge of micro fluid droplet, high accuracy for discharge position, and decrease in drive voltage. The device and method offer superior discharge start/stop characteristic, thus realizing operation at high frequencies. The device is also capable of discharge amount control by pulse time.
摘要:
An electrostatic suction type fluid discharge device supplies a drive voltage from a power source between a nozzle and an insulating substrate, so as to supply an electric charge to a discharge material supplied into the nozzle. As a result, the discharge material is discharged from the nozzle hole onto the insulating substrate. The diameter of the hole of the nozzle falls within the range between φ0.01 μm and φ25 μm, the power source outputs, as the drive voltage, a bipolar pulse voltage that alternates between positive and negative and has a frequency of not less than 1 Hz.
摘要:
An emissive element array of a plurality of organic EL elements is arranged linearly on a single-crystal silicon substrate or polycrystalline silicon substrate with a drive circuit including an element switching its respective emissive element. The organic EL emissive elements have an edge emitting structure utilizing light emitted in an edge direction perpendicular to the direction of deposition of electrode layers and organic compound layers, and is constructed such that the emitting area of one emissive element, S, as viewed in the direction of deposition, and the period of emissive elements disposed side by side, d, have the relationship of S>d2. In this way, organic EL techniques can be applied to provide the required amount of light exposure and to produce an exposure device that is small and inexpensive.
摘要翻译:多个有机EL元件的发射元件阵列线性地布置在单晶硅衬底或多晶硅衬底上,其中驱动电路包括切换其各自发射元件的元件。 有机EL发光元件具有利用沿垂直于电极层和有机化合物层的沉积方向的边缘方向发射的光的边缘发射结构,并且被构造成使得在一个发射元件S的发射面积 沉积方向和并排设置的发射元件的周期d具有S> d <2>的关系。 以这种方式,可以应用有机EL技术来提供所需量的曝光并且产生小而便宜的曝光装置。
摘要:
A control valve device for use in a carburetor outer vent control system of an automotive internal combustion engine. The device includes a solenoid coil generating a magnetic force and a spring made of a shape memory alloy so that the device may control fluid communication in a fluid passage in response to an input current signal from a switch device and changes in ambient temperature.
摘要:
An electrostatic suction type fluid discharge device supplies a drive voltage from a power source between a nozzle and an insulating substrate, so as to supply an electric charge to a discharge material supplied into the nozzle. As a result, the discharge material is discharged from the nozzle hole onto the insulating substrate. The diameter of the hole of the nozzle falls within the range between φ0.01 μm and φ25 μm, the power source outputs, as the drive voltage, a bipolar pulse voltage that alternates between positive and negative and has a frequency of not less than 1 Hz.
摘要:
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.
摘要:
A corona discharge device (10) comprises a discharge electrode (1) for causing electric discharge, a discharge product removing member (4) provided around the discharge electrode (1), and containing a material capable of removing a discharge product, and a shield plate (3) interposed between the discharge electrode (1) and the discharge product removing member (4), having a through-hole (3a) open toward the discharge electrode (1), and having a surface opposed to the discharge electrode (1) and at least the surface being made of a metallic material. With this, a corona discharge device, a photoreceptor charger, and a method for making a discharge product removing member which realize high trapping efficiency for discharge products and a long life of a discharge product removing filter are provided.