Patent ID: 7652799

Claim:
An image forming device, comprising: a setting unit configured to set a first threshold value, a second threshold value, a third threshold value, and a fourth threshold value; a storage unit configured to store the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value, wherein the first threshold value and the second threshold value are used for processing one or more objects without color faded markings from color fadable toner, wherein the third threshold value and the fourth threshold value are used for processing one or more objects with color faded markings from color fadable toner; a reading unit configured to read an image on the one or more objects; an image processing unit configured to process one or more images read by the reading unit; a control unit configured to read threshold information stored in the storage unit and set a threshold setting in the image processing unit; and an operational panel, wherein the control unit is configured to detect a selection of a first threshold value changing key on the operational panel and change the threshold setting of the image processing unit from the first threshold value and the second threshold value to the third threshold value and the fourth threshold value; and wherein the image processing unit is configured to process one or more images with the threshold setting set at the third threshold value and the fourth threshold value.