To provide a toner which enables is compatible with high transmissivity and offset resistance with color toner without using fixing oil and retaining stable development property even in a cleanerless process, has an image forming unit group in which plural movable image forming units which form toner images of different colors are annularly arranged, suitably acts to an electrophotographic method having the constitution in which the whole of the image forming units rotatably move and enables preventing the generation of filming to a photoreceptor due to high density and bottom fogging.
This toner is constituted in such a manner that inorganic fine particles exhibiting positive electrostatic chargeability are added to a toner matrix comprising polyester resin having a prescribed acid value and a hydrocarbon type wax having ester bonds with a prescribed acid value or amide bonds.
MAEDA MASATOSHI
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