MAGNETIC TONER AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a magnetic toner excellent in image characteristics such as image density, resolution and gradation, having good transfer efficiency and not causing untransfer in relation to a developer and an image forming method used in an electrophotographic system image forming apparatus such as a copying machine or a printer and to provide an image forming method using the magnetic toner. SOLUTION: The magnetic toner contains at least an electrostatic charge controlling agent and a magnetic material, the electrostatic charge controlling agent is a calix arene compound of formula (1) and the magnetic material satisfies the condition (σ/X)×100<=40 (where X is 0.1-0.5μm average particle diameter andσis the standard deviation of number distribution).