JPH0321058U

JPH0321058U -

Info

Publication number: JPH0321058U
Application number: JP8185189U
Authority: JP
Priority date: 1989-07-11
Filing date: 1989-07-11
Publication date: 1991-03-01

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す画像形成装置
の断面図、第２図はその正面図、第３図は斜視図
、第４図は排風手段の断面図、第５図は本考案に
よる他の実施例を示す排風手段の断面図、第６図
は従来の画像形成装置の断面図である。１０……光学部、１９……本体フレーム、２０
……画像形成部、２９……本体上フレーム、３０
……給紙部、３９……本体下フレーム、４０……
排紙部、４１……排紙ローラ、４２……排紙受台
、４３……排紙トレイ、４４……排紙口、４８…
…駆動部外装体、４９……風洞状空間、５０……
排風手段、５１……外装本体、５１Ａ，５１Ｂ，
５２Ａ，５２Ｂ，５６Ａ，５６Ｂ……開口、５２
……外筒部材、５３……内筒部材、５３Ａ……吸
引開口、５３Ｂ……排気開口、５４……回転羽根
、５５……偏向板（ルーバー）、Ｐ……記録紙。 FIG. 1 is a cross-sectional view of an image forming apparatus showing an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a perspective view, FIG. 4 is a cross-sectional view of an air exhaust means, and FIG. FIG. 6 is a sectional view of a conventional image forming apparatus, showing another embodiment of the invention. 10...Optical section, 19...Body frame, 20
... Image forming section, 29 ... Body upper frame, 30
...Paper feed section, 39...Main body lower frame, 40...
Paper ejection unit, 41... Paper ejection roller, 42... Paper ejection cradle, 43... Paper ejection tray, 44... Paper ejection port, 48...
... Drive unit exterior body, 49 ... Wind tunnel-like space, 50 ...
Exhaust means, 51...Exterior main body, 51A, 51B,
52A, 52B, 56A, 56B...Opening, 52
... Outer cylinder member, 53 ... Inner cylinder member, 53A ... Suction opening, 53B ... Exhaust opening, 54 ... Rotating vane, 55 ... Deflection plate (louver), P ... Recording paper.

Claims

[Scope of Claim for Utility Model Registration] (1) An optical section that scans and exposes a document image to form an optical image on an imaging surface, and an optical section that forms an optical image on a recording paper and outputs the image from the paper ejection opening to the outside of the machine. In an image forming apparatus comprising an image forming section for discharging the recording paper and a paper feeding section for supplying the recording paper to the image forming section, a paper discharging opening of the image forming section and a ventilation means are arranged in a lower concave portion of the optical section main body. provided, and the exhaust flow by the exhaust means,
1. A paper discharge device for an image forming apparatus, characterized in that it branches into a main exhaust flow in a horizontal direction and an auxiliary exhaust flow in an oblique downward direction. (2) The paper discharge device for an image forming apparatus according to claim 1, wherein the housing of the ventilation means is provided with a main ventilation opening and an auxiliary ventilation opening. (3) The image forming apparatus according to claim 1, characterized in that a deflection plate is provided in the middle of the air exhaust opening of the housing of the air exhaust means, and the deflection plate branches the air exhaust flow into a main exhaust air flow and an auxiliary exhaust air flow. paper ejection device.