IMAGE FORMING APPARATUS WITH COLOR ERASING FUNCTION, AND METHOD FOR CONTROLLING COLOR-ERASED PAPER

摘要

PROBLEM TO BE SOLVED: To provide an image forming apparatus with a color erasing function, capable of simultaneously or individually performing printing and color-erasing.;SOLUTION: At least one blank paper 13 is stored in a cassette 14. In printing, the paper 13 is pulled out from the cassette 14, then, conveyed on a paper feeding conveying path 15 and an image forming conveying path 12, then, an image is transferred at a secondary transfer unit 10, and fixed at the fixing unit 16, and the paper is discharged to a paper discharge 19. Next, the presence of the paper 13 is detected by a sensor 25, with the presence of the paper, the paper is conveyed as it is, at the same time, with the absence of the paper, paper supplied by an operator is conveyed on the paper feeding conveying path 15, then, the presence of the image is detected by a sensor 26, with the absence of the image, the paper is conveyed as it is, at the same time, with the presence of the image, the image is erased by a color erasing unit 21, then, printing is continuously performed via the secondary transfer unit 10, the fixing unit 16 and the paper discharge tray 19 in order. When finishing the printing process, if the paper 13 lies in the cassette 14, the paper is conveyed on the paper feeding conveying path, if the paper does not lie in the cassette, the paper supplied by the operator is conveyed on the paper feeding conveying path 15, then, the presence of the image on the paper is detected, and with the absence of the image, the paper is conveyed as it is, with the presence of the image, the image is erased, then, stored in the casset 14 via a color erasing conveying path 28, then, the processing is finished.;COPYRIGHT: (C)2011,JPO&INPIT