JPS649950U

JPS649950U -

Info

Publication number: JPS649950U
Application number: JP10381387U
Authority: JP
Priority date: 1987-07-08
Filing date: 1987-07-08
Publication date: 1989-01-19

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の正面図、第２図は
本考案の一実施例の平面図、第３図は本考案の一
実施例におけるカール検出部の斜視図、第４図及
び第５図は本考案の一実施例の動作説明図、第６
図は従来の画像形成装置と排紙装置との連結状態
を示す図、第７図ａ乃至ｄは用紙のカールの状態
を示す図である。１０…第１の搬送ローラ、１１…駆動ローラ、
１２…従動ローラ、１４…用紙、１５…排紙トレ
イ、１６…第２の搬送ローラ、１７…揺動腕、１
８…駆動ローラ、１９…従動ローラ、２６，２８
…用紙カール検出腕（カール検出手段）、３１，
３２…検知器（カール検出手段）。 FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a plan view of an embodiment of the present invention, FIG. 3 is a perspective view of a curl detection section in an embodiment of the present invention, and FIG. FIG. 5 is an explanatory diagram of the operation of one embodiment of the present invention, and FIG.
The figure shows a state in which a conventional image forming apparatus and a paper ejecting device are connected, and FIGS. 7a to 7d show states in which paper is curled. 10...first conveyance roller, 11...drive roller,
12... Followed roller, 14... Paper, 15... Paper ejection tray, 16... Second conveyance roller, 17... Swinging arm, 1
8... Drive roller, 19... Followed roller, 26, 28
...Paper curl detection arm (curl detection means), 31,
32...Detector (curl detection means).

Claims

[Claims for Utility Model Registration] A paper discharge device that stacks a large amount of paper on a paper discharge tray, comprising a curl detection means for detecting whether or not the paper is curled, and a drive having a fixed shaft position. A first conveyance roller consisting of a roller and a driven roller; a second conveyance roller consisting of a drive roller having a fixed shaft position and a driven roller rotatably attached to a swinging arm; When the curl detection means detects the curled paper, the driven roller of the second conveyance roller comes into pressure contact with the drive roller of the first conveyance roller and the drive roller of the second conveyance roller, The paper carried into the first conveying roller is squeezed by the driving roller of the first conveying roller and the driven roller of the second conveying roller, and then the sheet is squeezed by the driving roller of the second conveying roller and the driven roller of the second conveying roller. A paper ejection device characterized in that the curled paper is straightened flat by squeezing the paper with a driven roller of the second conveyance roller.