| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a developing method capable of stably obtaining an image of high definition with a uniform highlight part and less density fluctuation. SOLUTION: The method is provided with a means for impressing an AC voltage on a developer carrier 111 so that an AC electrical field may be intermittently formed, the AC electrical field satisfies|Vpp -2Vcont|/16Vf <2> <d<2> /|Q|, provided that Vpp (V) denotes a peak-to-peak of an AC voltage impressed on the developer carrier 111, Vf (Hz) denotes the frequency of the AC voltage impressed on the developer carrier 111, Vcont (V) denotes an image contrast potential, Q(C/kg) denotes the mean triboelectrical charge of the toner, d(m) denotes a distance between the developer carrier 111 and a latent image carrier 1, and in this method, toner particles with flowability <=20% are used as toner particles 118.</p> |
