Abstract: A method of controlling a fax of an image forming apparatus which transmits/receives a fax using a plurality of telephone lines, includes detecting a size of a fax data to be transmitted; checking communication settings of the plurality of telephone lines according to the detection result; detecting whether the plurality of telephone lines are in use; and selecting one of the plurality of telephone lines to transmit the fax data using the communication settings of the telephone lines and whether the telephone lines are in use. An image forming apparatus with a multi-line faxing function capable of transmitting a fax by automatically selecting a telephone line with a favorable communication setting among a plurality of telephone lines, thereby reducing time involved in fax transmission and waste of communication charges.

Abstract: A method of controlling a fax of an image forming apparatus which transmits/receives a fax using a plurality of telephone lines, includes detecting a size of a fax data to be transmitted; checking communication settings of the plurality of telephone lines according to the detection result; detecting whether the plurality of telephone lines are in use; and selecting one of the plurality of telephone lines to transmit the fax data using the communication settings of the telephone lines and whether the telephone lines are in use. An image forming apparatus with a multi-line faxing function capable of transmitting a fax by automatically selecting a telephone line with a favorable communication setting among a plurality of telephone lines, thereby reducing time involved in fax transmission and waste of communication charges.

Abstract: A method of controlling a fax of an image forming apparatus which transmits/receives a fax using a plurality of telephone lines, includes detecting a size of a fax data to be transmitted; checking communication settings of the plurality of telephone lines according to the detection result; detecting whether the plurality of telephone lines are in use; and selecting one of the plurality of telephone lines to transmit the fax data using the communication settings of the telephone lines and whether the telephone lines are in use. An image forming apparatus with a multi-line faxing function capable of transmitting a fax by automatically selecting a telephone line with a favorable communication setting among a plurality of telephone lines, thereby reducing time involved in fax transmission and waste of communication charges.

Abstract: An image forming apparatus and a method to offer help information therein include an input unit to receive a search request command to search help information from a user, a storage to store at least one help moving picture, a display to display the help moving picture, and a controller to control the display to display a help moving picture corresponding to the search request command.

Abstract: Disclosed is a ccd having memory. The memory store characteristics information such as CCD scale-up/down, start positions, and the like, so as to more easily and rapidly compensate for differences caused by CCD characteristics without extra compensation algorithm in a peripheral such as a scanner.

Abstract: An image scanning method and apparatus for edge detection and background image removal performed by a single operation. The image scanning method includes moving an image sensor in a first direction and detecting an edge of a document, and moving the image sensor in a second direction and detecting a gray level of a background image of the document. Accordingly, both document edge detection and background image removal can be performed by only a single operation of the image sensor, thereby, reducing scanning times.