JPS647134U

JPS647134U -

Info

Publication number: JPS647134U
Application number: JP10009987U
Authority: JP
Priority date: 1987-06-30
Filing date: 1987-06-30
Publication date: 1989-01-17
Anticipated expiration: 2002-06-30
Also published as: JPH0540047Y2

Description

[Brief explanation of the drawing]

第１図は給紙装置の斜視図、第２図は用紙検出
機構の詳細図、第３図は用紙検出機構の部分詳細
図である。第４図は画像形成装置の一例の静電写
真複写機の概略縦断側面図、第５図は給紙装置の
一部展開平面図、第６図及び第７図は用紙検出機
構の動作説明図、第８図はストツパー関係の側面
図、第９図は用紙検出機構の別実施列を示す詳細
図である。２３……中間トレイ、２４……ストツパー、２
５……給紙ローラ、４７……支軸、４８……アー
ム、５３第２アーム、５４……被動回転体、５６
……回転検出手段、５８……揺動部材、Ｐ，Ｐ_１……回転軸線。 FIG. 1 is a perspective view of the paper feeding device, FIG. 2 is a detailed view of the paper detecting mechanism, and FIG. 3 is a partially detailed view of the paper detecting mechanism. FIG. 4 is a schematic longitudinal sectional side view of an electrophotographic copying machine as an example of an image forming apparatus, FIG. 5 is a partially developed plan view of a paper feeder, and FIGS. 6 and 7 are explanatory diagrams of the operation of a paper detection mechanism. , FIG. 8 is a side view of the stopper, and FIG. 9 is a detailed view showing another embodiment of the paper detection mechanism. 23... Intermediate tray, 24... Stopper, 2
5... Paper feed roller, 47... Support shaft, 48... Arm, 53 Second arm, 54... Driven rotating body, 56
... Rotation detection means, 58 ... Swinging member, P, P ₁ ...rotation axis.

Claims

[Scope of Claim for Utility Model Registration] (1) On the downstream side in the paper feeding direction on the intermediate tray where the paper after single-sided copying is fed in a stacked state, a paper feed roller is placed up and down to feed the paper as required. The arm or the support of the arm is provided on a swingable arm, and a driven rotary body that contacts the paper with its own weight and rotates as the paper moves is movable up and down with respect to the paper feed roller. A paper refeeding unit of a double-sided copying machine, characterized in that the arm is provided with a rotation detecting means for electrically detecting the rotation of the rotating body, the arm being provided on a member connected to a shaft, and further provided on the arm. Detection mechanism. (2) A sheet refeeding machine for a double-sided copying machine as set forth in claim (1) of the utility model registration claim, wherein the rotating body is provided on a second arm that is pivotably attached to the arm. paper detection mechanism in the section.