Abstract:
An electrical read head having high sensitivity and resolution power and a method of operating the same are provided. The electrical read head includes a core portion for recording/reading data on/from a recording medium and an electrode pad connecting the core portion to a power supply. A surface of the core portion facing the recording medium is a plane surface and side surfaces of the core portion are perpendicular to the plane surface.
Abstract:
Provided are an image forming unit and a color image forming apparatus having the image forming unit. The image forming unit includes an intermediate transfer belt, a plurality of belt roller shafts formed at both ends of each of a plurality of belt rollers allowing the intermediate transfer belt to perform an endless orbiting motion, a plurality of photosensitive drums lined up along a rotational direction of the intermediate transfer belt, a plurality of photosensitive drum shafts formed at both ends of each of the plurality of photosensitive drums, and a developing frame comprising a plurality of holes supporting the plurality of belt roller shafts and the plurality of photosensitive drum shafts.
Abstract:
Provided is a thermally stable perpendicular magnetic recording medium. The provided perpendicular magnetic recording medium includes a perpendicular magnetic recording layer between a lower layer and an upper layer, wherein a thickness of the perpendicular magnetic recording is determined by Equation 7, in the case of K>105 erg/cm3 and D > ( 30 k B T π K A ) 1 / 2 , and determined by Equation 9, in the case of K>105 erg/cm3, n > 30 k B T π D 2 A K , and D ≤ ( 30 k B T π K A ) 1 / 2 . The provided perpendicular magnetic recording medium includes the perpendicular magnetic recording layer having a thermally stable thickness even when the value of K is large and an energy barrier does not follow KV. Thus, data recorded on the provided perpendicular magnetic recording medium is preserved for over 10 years.
Abstract:
A liquid developer imaging system and a method using the system for developing an image, including a cartridge for containing a developing solution; a developing container for receiving the developing solution supplied from the cartridge via a predetermined supply line; a developing roller partly submerged in the developing solution contained in the developing container, installed to be rotated facing a photosensitive object; and a metering blade for scraping off the developing solution coated on the surface of the developing roller to a predetermined thickness, is provided. According to the system, a developing supply structure can be considerably simplified because a high-density developing solution is directly used in developing an image without a process of diluting the solution, and an image can be developed to have high definition because the concentration of the developing solution coated on the developing roller is regularly controlled by a metering blade.
Abstract:
A wax coating device for a wet type electrophotographic color printer is capable of preventing the coating operation when printed matter is not supposed to be wax-coated. The wax coating device includes: a coating roller rotatably disposed so as to be partially immersed in the wax of a wax tank; a pressing roller disposed so as to be in tight contact with the coating roller for pressing the printed matter passing between the pressing and coating rollers against the coating roller; a pressing roller spacer for permitting the printed matter to pass between the pressing and coating rollers by spacing the pressing roller apart from the coating roller; and a coating prevention section for preventing contact of printed matter with the coating roller when the printed matter passes between the spaced pressing and coating rollers by being selectively advanced between and withdrawn from the pressing and coating rollers in accordance with the operation of the pressing roller spacer. The pressing roller spacer includes a pressing roller bracket and a cam gear for alternately rotating the coating prevention section. The coating prevention section includes a cover which is advanced between and withdrawn from the pressing and coating rollers in accordance with the rotational movement of the cam gear. The cover is advanced above the coating roller by the movement of the pressing roller which is spaced from the coating roller. Accordingly, the printed matter which is not supposed to be wax-coated is prevented from making contact with the coating roller.
Abstract:
A magnetic recording head and a method of manufacturing the same. The magnetic recording head includes a stack containing a main pole and a return pole. The stack includes a first magnetic layer having a groove formed therein; an insulating layer covering a surface of the groove; and a second magnetic layer pattern filling the groove covered with the insulating layer.
Abstract:
A photo spinner apparatus, including a spin coater for coating a plurality of wafers with photoresist, a bake device for hardening the photoresist coated by the spin coater, a developer for developing the photoresist hardened in the bake device, a transfer unit for transferring the plurality of wafers between the developer, the bake device, and the spin coater, and an indexer including a wafer carrier loader to vertically stack a plurality of wafer carriers into which the plurality of wafers transferred by the transfer unit are loaded.
Abstract:
An ice supplier includes a case configured to store ice from an ice maker. The case includes an outlet and a transfer unit configured to transfer ice pieces in the case to the outlet. A sensor is configured to sense ice pieces passing through the outlet and a controller is configured to control the transfer unit according to input from the sensor.
Abstract:
A perpendicular magnetic recording head which moves in a track direction of a recording layer of a perpendicular magnetic recording medium to write information on the recording layer or read information from the recording layer. The perpendicular magnetic recording head includes: the perpendicular magnetic recording medium including a soft magnetic underlayer and the recording layer; a write head including a main pole that applies a magnetic field to, and writes information to, the recording layer and a return pole having a first end which is connected to the main pole and having a second end which is spaced apart from the main pole over an air bearing surface (ABS) of the perpendicular magnetic recording head which is adjacent to the recording layer; and a permanent magnet formed on at least one side of the write head.
Abstract:
A magnetic write head includes a main pole, a return yoke forming a magnetic path with the main pole, a side shield formed at both sides of the main pole, and a shield gap layer formed between the side shield and the return yoke. The side shield and the return yoke have portions connected to each, and are separated from each other by the shield gap layer in an area except for the portions which contact. A first gap layer formed of a nonmagnetic insulation material is formed between both sides of the main pole and the side shield. A gap is formed between an end portion of the main pole and an end portion of the return yoke and a second gap layer is formed in the gap with a nonmagnetic insulation material.