JPH0312260U

JPH0312260U -

Info

Publication number: JPH0312260U
Application number: JP6890890U
Authority: JP
Priority date: 1990-06-28
Filing date: 1990-06-28
Publication date: 1991-02-07
Anticipated expiration: 1999-04-27
Also published as: JPH0710364Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は本考案の画像形成装置としての複写機の概略的
構成図、第２図は要部である現像装置の概略的縦
断正面図、第３図は同じく要部の異なる動作状態
を示す概略的縦断正面図、第４図ないし第６図は
駆動力伝達系の構成を示すもので、第４図は歯車
群の噛合状態を示す正面図、第５図は展開した状
態で示す断面図、第６図は駆動歯車へ駆動力伝達
状態を示す断面図、第７図は磁気ロール駆動手段
を一部断面して示す平面図、第８図は同じく正面
図、第９図イ，ロは同じく動作状態を示す説明図
、第１０図は現像装置部の概略的斜視図、第１１
図は現像ユニツトの固定構造を示す正面図、第１
２図イ，ロ，ハは把手とフツクの係脱関係を示す
説明図である。１０……２色カラー現像装置、５２……第１の
現像ユニツト（カラー用現像手段）、５３……第
２の現像ユニツト（黒色用現像手段）、５６，５
６′……現像剤磁気ブラシ、５６ａ，５６′ａ…
…現像剤。 The drawings show one embodiment of the present invention; FIG. 1 is a schematic configuration diagram of a copying machine as an image forming apparatus of the present invention, FIG. 2 is a schematic longitudinal sectional front view of a developing device, which is the main part; Fig. 3 is a schematic longitudinal sectional front view showing different operating states of the main parts, Figs. 4 to 6 show the configuration of the driving force transmission system, and Fig. 4 is a front view showing the meshing state of the gear group. 5 is a cross-sectional view showing the developed state, FIG. 6 is a cross-sectional view showing the driving force transmission state to the driving gear, FIG. 7 is a partially sectional plan view showing the magnetic roll drive means, and FIG. 9A and 9B are explanatory diagrams similarly showing the operating state, FIG. 10 is a schematic perspective view of the developing device section, and FIG.
The figure is a front view showing the fixing structure of the developing unit.
Figures 2A, 2B and 2C are explanatory diagrams showing the engagement and disengagement relationship between the handle and the hook. 10... Two color developing device, 52... First developing unit (color developing means), 53... Second developing unit (black developing means), 56,5
6'...Developer magnetic brush, 56a, 56'a...
...Developer.

Claims

[Claims for Utility Model Registration] An image forming means for forming an electrostatic image on a cylindrical image bearing member, and an image bearing member on which an electrostatic image is formed by the image forming means, a black a first developing means that performs development by supplying a developer of a color to the image bearing member on which an electrostatic image is formed by the image forming means; A second developing means provided above the first developing means; a take-out part for taking out the developing means of No. 2, and a take-out part provided in an operable area near the take-out part;
an operation section for operating a take-out operation of the second developing means, and the supply section of the second developing means is located at least at a position passing through the center of rotation of the image carrier and having an angle of 0 or more with respect to the horizontal line. An image forming apparatus characterized in that the image forming apparatus is disposed in.