Abstract: The present invention relates to a handy scanner apparatus and a control method thereof, which scan the surface of the object under scan, larger than a scanner, into units of two-dimensional tile images each of which has a predetermined size, and synthesize the photographed images in accordance with shift information into final page images. Particularly, a scan unit comprises: a transparent window portion which forms an area of tile images to be scanned; a housing portion which prevents the introduction of light from an external source; a camera module which maintains a fixed optical distance from the object under scan, and photographs tile images; a lighting module which provides light only during a preset time in accordance with a lighting signal; and a shift sensing module which outputs shift information.

Abstract: An error-compensating technique for scanned data, using a scanner having both a printing device which performs a bi-directional printing operation and a scanner device which moves in the same direction as that of the printing device and performs a scanning function, includes: a special pattern-printing process in which the printing device moves in a preset fixed direction and prints a special pattern-printing process; a pattern-recognizing process in which the scanning device moves in the same direction as that of the printing direction and recognizes the pattern; a pattern-recognizing process in which the scanning device moves in the opposite direction to that of the printing direction and recognizes the pattern; and a position compensation data-yielding process in which position compensation data for the bi-directional scanning data is yielded.

Abstract: Disclosed is a method for controlling a temperature of an electric motor. According to the present invention, the method for controlling the temperature of the electric motor includes the steps of setting a present temperature of the electric motor as an initial value, comparing the present temperature with a lower limit temperature when the multifunctional apparatus receives an order to perform a printing, performing the printing if the present temperature is lower than the lower limit temperature at the comparing step, converting a time for printing into an increased value of the temperature at the performing step and resetting the increased value of the temperature as the present temperature, and delaying the printing for a predetermined time if the present temperature is higher than the lower limit temperature at the comparing step.

Abstract: A printing method of a color ink-jet printer having multiple printer heads provides the capability of printing regardless of the positions of the printer heads by adopting printing methods according to the mounting positions of the printer heads. The method includes a step for checking the types of the printer heads located at each port of the multiple printer heads; and a step for performing the printing operation by adjusting the printing positions of each printer head according to the types of the printer heads located at the printer head ports and the type of printing desired. According to the method, the printing operation is possible regardless of the positions of the black and white printer head and the color printer head. Moreover, when receiving data successively, as in a fax machine, the method prevents an error caused by the shortage of ink when processing data by providing an extra printer head at the printer head ports.

Abstract: A paper eject apparatus for preventing a paper jam caused by a curled paper, by ejecting the curled paper outside passing between an eject roller and an idler roller. The paper eject apparatus of the ink-jet printer for preventing the paper from being jammed differentiates positions to be contacted between each idler roller and eject roller, and moves a carriage from the position of a protrusive idler roller to the position of the other idler rollers. Accordingly, the deflector placed at the lower part of the carriage presses the paper and enables the paper to easily be passed, thereby preventing the paper jam caused by the supply of the curled paper.

Abstract: A method of printing patterns for vertically aligning a serial printer that increases the speed of the vertical alignment operation. The method also reduces alignment errors caused by mechanical variation by printing a plurality of aligning patterns on the same line while a carriage body is continuously moved across the printing scan axis, reduces errors caused by the motor due to the accelerating of the carrier body, and also lessens the amount of paper wasted in the vertical alignment process.