JPH0390246U

JPH0390246U -

Info

Publication number: JPH0390246U
Application number: JP15277089U
Authority: JP
Priority date: 1989-12-29
Filing date: 1989-12-29
Publication date: 1991-09-13

Description

[Brief explanation of the drawing]

第１図は本考案一実施例の画像形成装置の感光
体周りの構成図、第２図は同上画像形成装置の奥
部に設けられる側板の構成図、第３図は一括集合
ダクト部周辺構成部の断面図、第４図は同上一括
集合ダクト部の断面図、第５図ａ乃至ｃは本考案
例と従来例との空気排出量に関して比較して示す
図、第６図及び第７図は回転遮蔽部材の別の例を
それぞれ示す斜視図である。１……潜像担持体としてのドラム状感光体、２
５……一括集合ダクト部、２７，２８……フイル
ター、３１，３１′，３１″……回転遮蔽部材、
３１Ａ，３２Ａ，３３Ａ，３４Ａ……空気吸引路
。 Fig. 1 is a block diagram of the area around the photoreceptor of an image forming apparatus according to an embodiment of the present invention, Fig. 2 is a block diagram of a side plate provided at the back of the same image forming apparatus, and Fig. 3 is a block diagram of the area surrounding the collective duct section. FIG. 4 is a cross-sectional view of the same collective duct section, FIGS. 5 a to c are diagrams showing a comparison of the amount of air discharged between the present invention example and the conventional example, and FIGS. 6 and 7. FIG. 3 is a perspective view showing another example of the rotation shielding member. 1...Drum-shaped photoreceptor as a latent image carrier, 2
5... Collective duct section, 27, 28... Filter, 31, 31', 31''... Rotating shielding member,
31A, 32A, 33A, 34A...Air suction path.

Claims

[Scope of utility model registration request]

In an image forming apparatus in which a plurality of image forming process devices including a discharger that performs corona discharge between the latent image carrier and the latent image carrier are arranged around the latent image carrier, at least two image forming process devices including the discharge device are provided. a plurality of air suction passages communicating with each of the plurality of air suction passages, a collective duct portion communicating with all of the plurality of air suction passages, and forming a suction air flow from the plurality of air suction passages toward the collective duct portion. A filter is installed at the boundary between the multiple air suction paths and the collective air suction duct section, and rotates to periodically flow the multiple air suction paths. An image forming apparatus comprising: a rotary shielding member that opens and closes;