Abstract: The present application discloses an image formation apparatus that can transfer an image into electronic paper using an electronic photography method, and a printing control method for the image formation apparatus. The present electronic paper comprises an electrophoresis layer for displaying an image using an electrophoresis method, a conductive layer, and a film layer for transmitting an image; and the image formation apparatus comprises a communication interface for receiving printing data, an image formation unit for transferring an image corresponding to the printing data, and a processor for controlling the image formation unit.

Abstract: The present application discloses an image formation apparatus that can transfer an image into electronic paper using an electronic photography method, and a printing control method for the image formation apparatus. The present electronic paper comprises an electrophoresis layer for displaying an image using an electrophoresis method, a conductive layer, and a film layer for transmitting an image; and the image formation apparatus comprises a communication interface for receiving printing data, an image formation unit for transferring an image corresponding to the printing data, and a processor for controlling the image formation unit.

Abstract: A facsimile apparatus capable of transmitting and receiving voice data and non-voice data, and supporting a plurality of lines includes a main section including a plurality of modem units to individually control each of the plurality of modem units, and a line section including a plurality of line connecting units to connect a plurality of General Switched Telephone Networks (GSTNs) with the plurality of modem units, respectively. Accordingly, a plurality of lines can be used via one telephone circuit.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: A communication interface unit of a facsimile and a transformer for preventing a power source noise. The communication interface unit includes the transformer between a line unit and a MODEM for electrically separating the circuit boards of the line unit and the MODEM for preventing the power source noise causing data transmission error from flowing into the line unit. Also, a method for bonding the ferrite core and the housing in order to prevent damage to the transformer caused by an external force and minimizing generation of capacitance component by bonding. The bonding method can be more effectively implemented when an integrated circuit type data access arrangement circuit is used for accessing the PSTN. The present invention can prevent distortion of data generated by power source noise such as EFT and also prevent the ferrite core slipping off from the housing.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: A main terminal and a method of operating the same. In this method of operating the main terminal, the main terminal is connected to a telephone network so as to communicate with the telephone network, and selectively connects an external terminal to the telephone network. To perform the method, first, if it is requested that the telephone network be disconnected from the external terminal and instead be connected to the main terminal, an internal current to flow into the main terminal is obtained from a loop voltage generated when the external terminal is in connection with the telephone network. Next, the internal current is applied to the main terminal. Thereafter, the telephone network is disconnected from the external terminal and instead connected to the main terminal. While the internal current is flowing in the main terminal, the main terminal maintains the loop voltage generated when the external terminal is in connection with the telephone network.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit.

Abstract: Provided is an apparatus for protecting a multi-function product from surge voltage, the multi-function product including a public telephone network connection unit which receives one of a ring signal, a voice signal, and a fax signal and transmits the signal via first and second signal lines and an external apparatus connection unit which is connected to an external apparatus, receives a data signal from the external apparatus, and transmits the data signal via the first and second signal lines, the apparatus including: a first surge voltage cut off device having first and second terminals, wherein the first terminal is connected to the first signal line and the second terminal is connected to the second signal line; a second surge voltage cut off device having first and second terminals, wherein the first terminal is connected to the first signal line; a switching unit having a first terminal connected to the second signal line and a second terminal connected to one of a first contact point connected to the

Abstract: Communication terminal apparatuses and methods can detect and/or adjust a signal characteristic. The communication terminal may include a controller to compare a signal characteristic of a received test signal with a prescribed reference signal characteristic, and output a result of the comparison or adjust a signal characteristic for a subsequent signal. Accordingly, an abnormality in the signal characteristic, which may be caused by the displacement of a part occurring in the manufacturing and distributing process of the communication terminal apparatus, can be detected and/or adjusted.

Abstract: A facsimile apparatus capable of transmitting and receiving voice data and non-voice data, and supporting a plurality of lines includes a main section including a plurality of modem units to individually control each of the plurality of modem units, and a line section including a plurality of line connecting units to connect a plurality of General Switched Telephone Networks (GSTNs) with the plurality of modem units, respectively. Accordingly, a plurality of lines can be used via one telephone circuit.

Abstract: A method and apparatus to detect an off-hook state of a telephone connected in parallel to a communication terminal device connected to a telephone network. The method includes detecting a line voltage between both terminals of a line of the telephone network in an operation-ready state in which the communication terminal device is turned on, setting differently according to the line voltage an off-hook determination reference voltage to determine whether the parallel-connected telephone is off-hooked, and repeatedly detecting the line voltage between both terminals of the line and determining whether the parallel-connected telephone is off-hooked by comparing the repeatedly detected line voltage to the off-hook determination reference voltage.

Abstract: A telecommunication terminal device includes a network connection unit having at least a first pin and a second pin to which a public telephone network is connected, and a third pin and a fourth pin through which a first external terminal device of a first type is connected to the first and the second pins; a first switching unit for selectively connecting the public telephone network with the first external terminal device and a second external terminal device of a second type; a first external terminal connection unit having a fifth pin and a sixth pin through which the second external terminal device is connected to the first and the second pins; and a feeding circuit connected to the first and the second pins to keep flow of currents provided from the public telephone network. The telecommunication terminal device is capable of exchanging telecommunication signals regardless of serial or parallel connection to additional external terminal devices.

Abstract: An apparatus and method for transmitting print data to an inkjet printhead are provided, in which a first signal conversion unit which converts print data into an analog signal; a first connection line transmits the analog signal to the inkjet printhead; and a second signal conversion unit converts the analog signal into a digital signal. The inkjet printhead ejects ink according to the digital signal. Accordingly, an image may be quickly formed by transmitting print data to an inkjet printhead regardless of the inkjet printhead adopting a single line ink ejection approach or a multiple line ink ejection approach.

Abstract: An image forming apparatus and a control method thereof are provided where a modem unit modulates a certain signal and converts and outputs the signal in a digital form, a level controller varies the voltage level of the signal output from the modem unit, a line unit detects the voltage level of the varied signal and transmits the varied signal to an external device through a public switched telephone network PSTN. A controller adjusts the voltage level of the signal output from the modem unit by controlling the level controller according to the result of the comparison between the voltage level value of the signal detected by the line unit and a predetermined reference value. Accordingly, an optimal voltage level of a signal transmitted from a main unit to a line unit is maintained.

Abstract: A communication interface unit of a facsimile and a transformer for preventing a power source noise. The communication interface unit includes the transformer between a line unit and a MODEM for electrically separating the circuit boards of the line unit and the MODEM for preventing the power source noise causing data transmission error from flowing into the line unit. Also, a method for bonding the ferrite core and the housing in order to prevent damage to the transformer caused by an external force and minimizing generation of capacitance component by bonding. The bonding method can be more effectively implemented when an integrated circuit type data access arrangement circuit is used for accessing the PSTN. The present invention can prevent distortion of data generated by power source noise such as EFT and also prevent the ferrite core slipping off from the housing.

Abstract: Provided is an apparatus for protecting a multi-function product from surge voltage, the multi-function product including a public telephone network connection unit which receives one of a ring signal, a voice signal, and a fax signal and transmits the signal via first and second signal lines and an external apparatus connection unit which is connected to an external apparatus, receives a data signal from the external apparatus, and transmits the data signal via the first and second signal lines, the apparatus including: a first surge voltage cut off device having first and second terminals, wherein the first terminal is connected to the first signal line and the second terminal is connected to the second signal line; a second surge voltage cut off device having first and second terminals, wherein the first terminal is connected to the first signal line; a switching unit having a first terminal connected to the second signal line and a second terminal connected to one of a first contact point connected to the