| 摘要 |
PROBLEM TO BE SOLVED: To efficiently operate an image processing adjusting function in a method using color fadable toner. SOLUTION: When copying an object that has faded markings of color fadable toner and is printed with the color fadable toner, a threshold value changing key (not illustrated) is displayed on a liquid crystal display 42 of an operation panel 4 to be pressed down. A main CPU sets a threshold value 1a and a threshold value 2a in an image processing unit 13 upon detecting the threshold value changing key (not illustrated) displayed on the liquid crystal display 42 of the operation panel 4 via a touch panel 41. The image processing unit 13 eliminates a background image by using the set threshold value 1a and threshold value 2a, thereby providing dark printing with an excellent image. COPYRIGHT: (C)2006,JPO&NCIPI
|
