Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: A tray for aligning semiconductor packages, a test handler using the same, a method of aligning the semiconductor packages, and a test method using the same include a tray main body comprising a plurality of package pocket portions at which a plurality of semiconductor packages are individually received and an air position-aligning unit coupled to the tray main body. The air position-aligning unit applies air having a preset pressure to the semiconductor package received at the package pocket portion. The semiconductor package is aligned at the package pocket portion.

Abstract: An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: A test socket is provided that includes a base material including an insulating elastic material and a conductive portion extending through the base material in a thickness direction of the base material, wherein the conductive portion includes a plurality of conductive particle structures arranged in the thickness direction of the base material, and each of the plurality of conductive particle structures includes a plurality of conductive particles having at least one insulating wire and/or at least one conductive wire extending from a surface of the conductive particle, bonded with a material having a functional group.

Abstract: An electrophotographic image forming apparatus includes an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: Provided are a test socket for a semiconductor device and a test device including the test socket. The test device includes a test socket including terminals arranged in a two-dimensional array and corresponding to terminals of the semiconductor device and a ground line extending along at least one row of two-dimensional array; and a substrate electrically connected to the test socket so as to transmit and receive a test signal. The test socket includes a ground line extending along at least one row of the two-dimensional array.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: An electrophotographic image forming apparatus and a development cartridge are provided. The electrophotographic image forming apparatus includes a body including an opening, a photoreceptor cartridge attached to, or detached from, the body through the opening, a photoconductive drum and a mounting portion, a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, a development roller supplying toner to an electrostatic latent image formed on the photoconductive drum, a cover for opening or closing the opening, and a pressurizing unit fixing the development cartridge to the mounting portion by providing a pressing force to the development cartridge in a direction parallel to a center line connecting centers of the photoconductive drum and development roller while the opening is closed.

Abstract: Disclosed are a tray for aligning semiconductor packages, a test handler using the same, and a method of aligning the semiconductor packages, and a test method using the same. According to the present inventive concept, the tray for aligning the semiconductor packages includes a tray main body comprising a plurality of package pocket portions at which a plurality of semiconductor packages are individually received and an air position-aligning unit coupled to the tray main body. The air position-aligning unit applies air having a preset pressure to the semiconductor package received at the package pocket portion. The semiconductor package is aligned at the package pocket portion.

Abstract: An electrophotographic image forming apparatus and a development cartridge are provided. The electrophotographic image forming apparatus includes a body including an opening, a photoreceptor cartridge attached to, or detached from, the body through the opening, a photoconductive drum and a mounting portion, a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, a development roller supplying toner to an electrostatic latent image formed on the photoconductive drum, a cover for opening or closing the opening, and a pressurizing unit fixing the development cartridge to the mounting portion by providing a pressing force to the development cartridge in a direction parallel to a center line connecting centers of the photoconductive drum and development roller while the opening is closed.

Abstract: An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.

Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: A test socket is provided that includes a socket body to receive an object to be tested, a lid disposed on the socket body, one or more pushers coupled to a first surface of lid to apply force to a first surface of the object toward the socket body, and a temperature controlling member to provide a temperature to the object. A semiconductor package may be tested in a test apparatus that includes the test socket, the methods of testing including receiving a semiconductor package in a socket in a test chamber, applying a first temperature to the test chamber to test the semiconductor package at a first test temperature, and applying a second temperature to the semiconductor package to test the semiconductor package at a second test temperature by controlling the application of the second temperature with the socket.

Abstract: A connecting unit to test a semiconductor chip and an apparatus to test the semiconductor chip having the same include a plurality of connectors, on which a semiconductor chip having a certain pattern of electrical connection terminals, having a plurality of holes, cables configured to electrically connect the electrical connection terminals to the exterior, and coupling units configured to selectively electrically connect the cables to the electrical connection terminals through the holes. Therefore, it is possible to perform electrical tests of semiconductor chips having various patterns of electrical connection terminals and receive the semiconductor chips in a tray at a time.

Abstract: A connecting unit to test a semiconductor chip and an apparatus to test the semiconductor chip having the same include a plurality of connectors, on which a semiconductor chip having a certain pattern of electrical connection terminals, having a plurality of holes, cables configured to electrically connect the electrical connection terminals to the exterior, and coupling units configured to selectively electrically connect the cables to the electrical connection terminals through the holes. Therefore, it is possible to perform electrical tests of semiconductor chips having various patterns of electrical connection terminals and receive the semiconductor chips in a tray at a time.

Abstract: A test carrier includes an insert body, a first latch assembly including one or more first latches pivotally attached to the insert body, and a second latch assembly including one or more second latches pivotally attached to the insert body. The second latch assembly is configured to engage with an external connection terminal array of an electronic component during testing thereof. A method of testing a semiconductor device and a system for testing a semiconductor device are also provided.

Abstract: A test carrier includes an insert body, a first latch assembly including one or more first latches pivotally attached to the insert body, and a second latch assembly including one or more second latches pivotally attached to the insert body. The second latch assembly is configured to engage with an external connection terminal array of an electronic component during testing thereof. A method of testing a semiconductor device and a system for testing a semiconductor device are also provided.