IMAGE FORMING METHOD

PROBLEM TO BE SOLVED: To provide an image forming method which enables the high speed formation of a picture having high picture concentration and high picture quality in the formation of the picture by developing an electrostatic latent image formed in a photosensitive layer of a photoreceptor by means of the toner. SOLUTION: In the image forming method, when the ratio d/v (sec) of the circumference d (mm) from the charged position to the developed position of a photoreceptor to the circumferential speed v (mm/sec) is set to be ≤0.5 sec, the toner contains any multiple oxide selected from a group consisting of the following multiple oxides (1)-(5): (1) a multiple oxide containing any manganese element to tetravalent, trivalent or tetravalent/bivalent and trivalent iron element, (2) a multiple oxide containing bivalent manganese element and trivalent iron element, (3) a multiple oxide containing bivalent copper element and trivalent iron element, (4) a multiple oxide containing bivalent copper element and trivalent chromium element and (5) a multiple oxide containing bivalent copper element, trivalent iron element and trivalent chromium element. COPYRIGHT: (C)2004,JPO