same data as the comparison data is not repeated after the comparison data and storing the comparison data without storing the number of times the comparison data is repeated if the comparison data is greater than the predetermined threshold application_number US 43537903 A description embodiments of the present invention will be described in detail with reference to the accompanying drawings in the drawings the same or similar elements are denoted by the same reference numerals also a detailed description of known functions and configurations have been omitted for conciseness fig3 is a diagram illustrating an example of a graphic image compression process in accordance with an embodiment of the present invention referring to fig3 data u201c 0x01 u201d appears once and data u201c 0x00x u201d is then repeated seven times in first and second columns of uncompressed data 11 subsequently data u201c 0x15 u201d appears once data u201c 0x10 u201d appears once and data u201c 0x15 u201d is then repeated twice in the first and second columns of the uncompressed data 11 data u201c 0x00 u201d is repeated four times and data u201c 0x3c u201d is repeated twice in a third column of the uncompressed data 11 data u201c 0x10 u201d appears once data u201c 0x20 u201d appears once data u201c 0x60 u201d appears once data u201c 0x70 u201d appears once and then data u201c 0xff u201d is repeated twice in a fourth column of the uncompressed data 11 when the uncompressed data 11 repeated as the above has only one data a.