Patent ID: 6233425
Filing Date: 2001-05-15
Classification: G03G,H04N

Abstract:
An image forming apparatus comprising:an image reading means for reading of an original is carried out simultaneously with formation, on the basis of image data obtained by the reading of the original, of a multicolored transfer image which is to be transferred onto a sheet, and conveying of the sheet is started during the formation of the transfer image, and at a transfer position, the transfer image is transferred onto the sheet;a sensing device which, after starting of the reading of the original and before starting of the conveying of the sheet, senses, on the basis of the image data obtained by the reading of the original, whether the original is a copying prohibited original; anda stopping device which, in a case in which said sensing device senses that the original is a copying prohibited original; stops copying processing without conveying the sheet.