Abstract:
PURPOSE: A transfer belt driving controlling method for a color registration correction and an apparatus thereof are provided to correct the exact color registration and reduce the running time of the color registration correction by running a transfer belt in a second speed which is faster than a first speed. CONSTITUTION: The pattern formative region and the non- pattern formative region are established in the transfer belt in which the pattern for the color registration correction is formed(230). The color registration correction is proceed by running the transfer belt in the set pattern formative region with the first speed(270). The transfer belt is run in the non-pattern formative region with the second speed which is faster than the first speed.
Abstract:
A refrigerator is provided to install an evaporator at a refrigerator compartment and a freezer compartment respectively and introduce cool air of the freezer compartment to an icemaker compartment to improve icemaker performance and to supply cool air to the refrigerator compartment and the freezer compartment at the same time in the middle of icemaker operation. A main body forms an outer appearance and includes a refrigerator compartment(20) and a freezer compartment(30) inside. A first evaporator(23) generates cool air supplied to the refrigerator compartment. A second evaporator(33) generates cool air supplied to the freezer compartment. An icemaker is installed in the refrigerator compartment. An ice making apparatus is installed in the icemaker for making and storing ice. An ice making passage connects the second evaporator with the icemaker.
Abstract:
A refrigerator and an ice making method using the same are provided to mount point heaters to a cover of an ice making tray for delaying ice making of water partially to generate transparent ice with reduced power consumption. A refrigerator includes an ice making tray(110) receiving water to be frozen, a tray cover(120) for covering a top part of the ice making tray, and at least one or more point heaters(123) mounted to a bottom surface of the tray cover for heating the surface of the water received in the ice making tray locally. The ice making tray has a plurality of ice making cells(112) defined separately and the point heaters are mounted separately so as to mate to the ice making cells.
Abstract:
A refrigerator is provided for a user to draw ice at the proper height not to bend his lower back much by means of an ice discharge element having an ice elevating element. A refrigerator includes refrigerating and freezing compartments defined at upper and lower parts respectively, an ice making chamber(6) mounted in the refrigerating compartment to be communicated with the freezing compartment, and an ice bin(30) mounted in the ice making chamber with a slant bottom surface. A screw-shaped carrier(39) is mounted in the ice bin to discharge the ice to the outside. An ice discharging element(50) is mounted to a door(9) of the refrigerating compartment and has an ice elevating element(52) driven by a second driving motor(52b) for elevating the ice discharged by the carrier to discharge the same to the outside.
Abstract:
A refrigerator is provided to simplify the mounting structure of an ice making apparatus in a small ice making chamber by fitting the ice making apparatus on the upper part of the ice making chamber without using fixing tools. A refrigerator comprises a body unit, an ice making apparatus(30), a mounting groove(12a), a hanging projection(12b), a hook(12c), and a hanging groove(33a). The body unit contours the external appearance of the refrigerator, having an ice making chamber(12) for producing ice cubes. The ice making apparatus is disposed inside the ice making chamber for producing ice cubes, and is inserted on the upper part of the ice making chamber. The recessed mounting groove as a corresponding shape of the ice making apparatus is formed on the upper part of the ice making chamber. The hanging projection is formed on the rear side of the mounting groove and is tilted upward to catch upper part of the rear end of the ice making apparatus. The hook is installed on a front side of the mounting groove, and is downwardly extended to catch the upper front part of the ice making apparatus. The upper part of the rear end of the ice making apparatus is tilted corresponding to the hanging projection and inserted thereto, and the upper part of the front end is provided with the hanging groove to catch the hook.
Abstract:
A fixing device built in an electrophotographic image forming apparatus and a temperature control method for the fixing device are provided. The fixing device comprises a power supplying unit for supplying power to the fixing device; a control variable determination unit for determining control variables corresponding to operating states of the fixing device, wherein the control variables are used to control a temperature of the fixing device; a temperature detection unit for detecting the temperature of the fixing device; and a temperature control unit for controlling the temperature of the fixing device by using the control variables, wherein the temperature control unit comprises a duty ratio adjustment unit for adjusting a duty ratio of the supplied power based on the determined control variables. In addition, the control variable determination unit determines the control variables corresponding to at least one of a plurality of operating states.
Abstract:
과열방지부를 구비한 화상형성장치 및 과열방지방법이 개시된다. 본 화상형성장치는 열과 압력을 이용하여 현상제를 인쇄용지에 정착하는 정착부, 정착부에 열을 가하는 히터구동부, 정착부의 온도를 검출하는 온도검출부, 온도검출부에서 검출된 온도에 따라 히터구동부를 제어하기 위한 제어신호를 출력하는 제어부, 그리고, 제어부의 제어신호에 따른 히터구동시간을 감지하여, 히터구동시간이 소정 시간이상인 경우, 히터구동부를 정지시키는 과열방지부를 포함한다. 이에 따라, 정착부의 과열을 방지할 수 있게 된다. 정착, 히터구동, 온도검출, 과열방지, 워밍업
Abstract:
정착롤러의 온도 제어가 가능한 화상형성장치 및 그 온도 제어방법이 개시된다. 본 화상형성장치는 절연부재로 피복되어 있으며, 열을 가해 화상을 인쇄용지에 정착시키는 정착롤러, 정착롤러를 가열하는 가열램프, 가열램프가 정착롤러를 가열하면, 정착롤러의 표면온도를 감지하는 온도감지센서, 및 감지된 표면온도를 이용해 정착롤러의 추정 표면온도를 산출하고, 산출된 추정 표면온도에 기초하여 가열램프의 구동 시점을 산출하고, 산출된 가열램프의 구동 시점이 되면 가열램프가 구동되도록 제어하는 제어부를 구비한다. 이에 의해, 측정된 정착롤러의 표면온도를 이용하여 산출한 정착롤러의 추정 표면온도를 이용하여 정착롤러를 온 시킬 시점을 산출하므로써, 정착롤러의 고무층에 의한 열 전달 지연 및 고무층의 열 보유에 의한 온도 편차를 고려할 수 있다. 그러므로, 정착롤러의 기설정된 정착온도에 도달 및 유지가 용이해지며, 언더슈트 및 오버슈트현상을 줄일 수 있다. 정착롤러, 가열램프, 온도제어