Abstract: The present disclosure relates to a composition for forming a polyurethane film, a polyurethane film derived from the composition and an article comprising a substrate and the polyurethane film, and the composition for forming a polyurethane film comprises an OH group-containing polymer; a curing agent; and an amphoteric ion-based polymer.

Abstract: Disclosed is a composition for forming a polyurethane film with improved reaction stability, comprising an OH group-containing polymer; an isocyanate-based compound as a curing agent; and an alicyclic urea diol compound having two urea groups and an OH group at two terminals, and a polyurethane film with improved self-healable property from tear, derived from the composition.

Abstract: Disclosed is a composition for forming a polyurethane film with improved reaction stability, comprising an OH group-containing polymer; an isocyanate-based compound as a curing agent; and an alicyclic urea diol compound having two urea groups and an OH group at two terminals, and a polyurethane film with improved self-healable property from tear, derived from the composition.

Abstract: The present disclosure relates to a composition for forming a polyurethane film, a polyurethane film derived from the composition and an article comprising a substrate and the polyurethane film, and the composition for forming a polyurethane film comprises an OH group-containing polymer; a curing agent; and an amphoteric ion-based polymer.

Abstract: An example image forming apparatus includes a light emitter to emit a plurality of light beams in a first direction perpendicular to a light emitting direction of a display and a second direction perpendicular to the first direction and the light emitting direction, a light receiver, a first processor to determine a touch input coordinate of a user based on a variation amount of each of the plurality of light beams received by the receiver, and a second processor to control the display and the image former using the determined touch input coordinate. The first processor may suspend determination of the touch input coordinate in response to an optical change being detected only in one direction within a preset first time. The example image forming apparatus may prevent a touch error, such as a touch error due to frustrated total internal reflection.

Abstract: An image forming apparatus, a touch input apparatus, and a method of preventing touch error display apparatus are provided. The image forming apparatus includes an image former, a display, a light emitter configured to emit a plurality of light beams in a first direction perpendicular to a light emitting direction of the display and a second direction perpendicular to the first direction and the light emitting direction, a light receiver, a first processor configured to determine a touch input coordinate of a user based on a variation amount of each of the plurality of light beams received by the receiver, and a second processor configured to control the display and the image former using the determined touch input coordinate, wherein the first processor suspends determination of a touch input coordinate in response to optical change being detected only in one direction within a preset first time.

Abstract: An image forming apparatus may include a communication unit configured to communicate with a portable electronic device and a controller configured to receive a location-related information that includes information about distances between the portable electronic device and a plurality of beacons, and store a location of the portable electronic device to register a location of the image forming apparatus.

Abstract: An image forming apparatus may include an image forming unit configured to form an image on a printing medium and a control unit configured to perform at least one of a user authentication operation, an image forming preparation operation, and an image forming operation according to distance information between a portable electronic device and the image forming apparatus.

Abstract: A method of providing an automatic connection service by a server includes: acquiring at least one of state information of an image forming apparatus and state information of a job performed by the image forming apparatus; determining whether the acquired at least one of state information satisfies a performing condition stored in a second server; and if the stored performing condition is satisfied, performing a stored operation in accordance with the stored performing condition.

Abstract: An image forming apparatus may include a communication unit configured to communicate with a portable electronic device and a controller configured to receive a location-related information that includes information about distances between the portable electronic device and a plurality of beacons, and store a location of the portable electronic device to register a location of the image forming apparatus.

Abstract: An image forming apparatus may include an image forming unit configured to form an image on a printing medium and a control unit configured to perform at least one of a user authentication operation, an image forming preparation operation, and an image forming operation according to distance information between a portable electronic device and the image forming apparatus.

Abstract: An image forming apparatus may include an image forming unit configured to form an image on a printing medium and a control unit configured to perform at least one of a user authentication operation, an image forming preparation operation, and an image forming operation according to distance information between a portable electronic device and the image forming apparatus.

Abstract: A method of providing an automatic connection service by a server includes: acquiring at least one of state information of an image forming apparatus and state information of a job performed by the image forming apparatus; determining whether the acquired at least one of state information satisfies a performing condition stored in a second server; and if the stored performing condition is satisfied, performing a stored operation in accordance with the stored performing condition.

Abstract: An image forming apparatus may include an image forming unit configured to form an image on a printing medium and a control unit configured to perform at least one of a user authentication operation, an image forming preparation operation, and an image forming operation according to distance information between a portable electronic device and the image forming apparatus.

Abstract: An image forming apparatus including: a communication interface unit to receive print data; an image processing unit to convert the received print data into pages of bitmap image data; an image forming unit to print the pages and having a queuing time; and a queuing time changing unit to change the queuing time according to a conversion time of the print data by the image processing unit.

Abstract: An image forming apparatus including: a communication interface unit to receive print data; an image processing unit to convert the received print data into pages of bitmap image data; an image forming unit to print the pages and having a queuing time; and a queuing time changing unit to change the queuing time according to a conversion time of the print data by the image processing unit.

Abstract: An image forming apparatus to prevent overheating of a fuser. In the image forming apparatus, a first overheating prevention unit compares the voltage detected by a temperature sensor, which senses temperature of the fuser, with a reference voltage and turns off the fuser when it overheats. A controller receives the detected voltage through an A/D port and performs on/off control of the fuser to keep its temperature at a predetermined level. A second overheating prevention unit compares the detected voltage with the A/D port voltage and turns off the fuser when the detected voltage is different from the A/D port voltage. When the A/D port is damaged, the A/D port voltage increased by the damage activates the second overheating prevention unit to turn off the fuser. This prevents overheating of the fuser caused by malfunction of the A/D port, thereby preventing disconnection of the thermostat or scorch of the fuser.

Abstract: An image forming apparatus to prevent overheating of a fuser. In the image forming apparatus, a first overheating prevention unit compares the voltage detected by a temperature sensor, which senses temperature of the fuser, with a reference voltage and turns off the fuser when it overheats. A controller receives the detected voltage through an A/D port and performs on/off control of the fuser to keep its temperature at a predetermined level. A second overheating prevention unit compares the detected voltage with the A/D port voltage and turns off the fuser when the detected voltage is different from the A/D port voltage. When the A/D port is damaged, the A/D port voltage increased by the damage activates the second overheating prevention unit to turn off the fuser. This prevents overheating of the fuser caused by malfunction of the A/D port, thereby preventing disconnection of the thermostat or scorch of the fuser.