JPS59114576U

JPS59114576U - electrostatic transfer device

Info

Publication number: JPS59114576U
Application number: JP885283U
Authority: JP
Inventors: 明珍　寿史
Original assignee: ミノルタ株式会社
Priority date: 1983-01-24
Filing date: 1983-01-24
Publication date: 1984-08-02

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の静電転写装置の転写操作状態を示す概略
断面図、第２図は本考案を適用した静電転写装置の転写
操作状態を示す概略断面図である。１・・・・・・転写ローラ、５・・・・・・定電流バイ
アス電源、６・・・・・・感光体ドラム、１０・・・・
・・直流電源、１１・・・・・・電荷中和ローラ、１２
・・・・・・ＡＣ電源、１３・・・・・・除電ローラ、
Ｐ・・・・・・複写紙、Ｔ・・・・・・トナー粒子。FIG. 1 is a schematic sectional view showing a transfer operation state of a conventional electrostatic transfer device, and FIG. 2 is a schematic sectional view showing a transfer operation state of an electrostatic transfer device to which the present invention is applied. 1... Transfer roller, 5... Constant current bias power supply, 6... Photosensitive drum, 10...
...DC power supply, 11...Charge neutralization roller, 12
... AC power supply, 13 ... Static elimination roller,
P... Copy paper, T... Toner particles.

Claims

[Claims for Utility Model Registration] 1. In an electrostatic transfer device equipped with a transfer roller to which a bias voltage is applied in order to electrostatically transfer toner particles on an image carrier to a transfer material, transfer after passing through a transfer area A charge neutralizing member to which a bias voltage is applied to neutralize the charge remaining inside the roller, and a bias voltage applied to the charge neutralizing member to erase the charge remaining on the surface of the transfer roller after the neutralization process by the charge neutralizing member. 1. An electrostatic transfer device comprising: a static eliminating member to which an applied charge is applied. 2. The electrostatic transfer device according to claim 1, wherein the transfer roller is made of a material having a high resistance value. 3. The electric field strength on the transfer material entrance side of the nip region formed by the image carrier and the transfer roller is lower than the electrical breakdown level of air, and the electric field strength on the transfer material exit side of the nip region is lower than the electrical breakdown level of air. Claim 2 of the utility model registration claim 2, wherein the bias voltage is applied so as to have an asymmetric electric field strength higher than the electric breakdown level of air, and the bias voltage is provided by a constant current bias power supply. Electric transfer device.