Jun Abe

TL;DR: In this paper, a development device is composed of a developer carrier 2 having a rotatable development sleeve 3 capable of carrying a developer on a surface thereof and a magnet body 4 having a plurality of fixedly arranged magnetic poles including at least adjacent repelling magnetic poles m1, m2 of the same polarity within the development sleeve.

TL;DR: In this paper, a two-component developer G is carried on the periphery of a developer carrier 1 having a fixed magnetic pole member 3 inside, and only the toner T is transferred to a toner carrier 5 by an electrostatic field forming means 6, then a latent image Z on the latent image carrier 8 is developed in a non-contact state with T on the carrier 5.

TL;DR: In this article, a first-developer-holding-member facing a surface of a rotating latent image carrier, it rotating such that a moving direction thereof is opposite to that of the carrier at a portion where they face.

TL;DR: In this article, a single-component developing apparatus comprising a developer holding member having a peripheral surface, a power supply section applying an AC developing bias voltage to the developer holding participant, the AC developing voltage having a waveform with predetermined minimum value, maximum value and period, an electrostatic latent image receiving member opposing the developer held participant across a gap having predetermined width, a developer supplying section supplying a developer to the developers holding member, and a developer regulating member forming developer into a thin layer on the peripheral surface by pressing on the developer Holding participant.