| 摘要 |
PURPOSE:To enable solidification due to generation of heat of toner to be prevented, to enable leak current between adjacent electrodes and further, to enable recording to be performed without decreasing density of an image, by a method wherein a volume resistance value of a developer and a current value flowing between recording electrodes are specified. CONSTITUTION:In an image forming device having a recording electrode composed of many recording elements, a means wherein a developer is supplied to the recording electrode, a driving circuit wherein signal voltage is impressed to the recording electrode, and recording medium which approaches the recording electrode to be relatively moved, recording voltage V, volume resistance value of a developer Rt, resistance between the recording electrodes when the developer exists Rs, resistance inside a recording element RIC, distance between the recording electrodes d, recording electrode exposed width l, and recording medium transfer speed v are so established that 10<3>(OMEGA-cm)<=Rt<=10<8>(OMEGA-cm), V/(Rs+RIC)<=10(mA), d(mm)>=5X10<-3>XV(volt)/l(mm), and v(m/sec)<=500Xl(mm) are realized. Thereby, solidification due to generation of heat of the developer can be prevented, and excessive flowing of a leak current between the electrodes can be also prevented. |
