JPS6127150U

JPS6127150U - Magnet roll cleaning mechanism

Info

Publication number: JPS6127150U
Application number: JP11082484U
Authority: JP
Inventors: 靖司橋本; 晃寺門; 保享辻
Original assignee: 日立工機株式会社
Priority date: 1984-07-20
Filing date: 1984-07-20
Publication date: 1986-02-18

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 the drawing]

第１図は本考案の一実施例を示す模式図である。第２図は第１図に示すクリーニングロールの構造を示す
縦断面図である。第３図は第２図の■−■縦断面図である。図において、１は現像機、２は感光ドラム、３・・・は
印刷用紙、４は光源、５は現像ロール、６はクリーニン
グロール、７はクリーニングロールに付着堆積した現像
剤、８はクリーニングロールに付着堆積したトナ、９は
マグネット、１０は感光ドラムにはじかれた現像剤、１
１はクリーニングロール内部のマグネット、１２はスリ
ーブ．、１３はクリーニングロール駆動用のモータであ
る。FIG. 1 is a schematic diagram showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing the structure of the cleaning roll shown in FIG. 1. FIG. 3 is a longitudinal cross-sectional view taken along the line 1--1 of FIG. 2. In the figure, 1 is a developing device, 2 is a photosensitive drum, 3... is printing paper, 4 is a light source, 5 is a developing roll, 6 is a cleaning roll, 7 is a developer deposited on the cleaning roll, 8 is a cleaning roll 9 is the magnet, 10 is the developer repelled by the photosensitive drum, 1 is the toner deposited on the
1 is the magnet inside the cleaning roll, 12 is the sleeve. , 13 is a motor for driving the cleaning roll.

Claims

[Scope of utility model registration request]

In a printing device using an electrophotographic method, a sleeve-rotating magnetic roll is provided to remove the developer from the photoreceptor before the developer reaches the transfer section, and the magnetic roll is placed opposite the surface of the magnet roll at a position where there is no magnetic pole. The cleaning mechanism of the magnet cool is characterized in that a magnet is disposed, and spikes of developer are formed on the magnet so as to be in contact with the surface of the cleaning roll to remove toner deposited on the surface of the cleaning roll.