JPH0475639U

JPH0475639U -

Info

Publication number: JPH0475639U
Application number: JP11907490U
Authority: JP
Priority date: 1990-11-14
Filing date: 1990-11-14
Publication date: 1992-07-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例における押圧部材の
取付構造を示す断面図、第２図は同実施例におけ
る自動原稿送り装置および複写機本体の外観を示
す斜視図、第３図は同自動原稿送り装置の内部構
造を示す断面図、第４図は上記複写機本体に対す
る原稿位置決め部材の取付構造を示す分解斜視図
、第５図は上記自動原稿送り装置を開いた時の原
稿位置決め部材の位置を示す断面図、第６図は同
自動原稿送り装置を閉じた時の原稿位置決め部材
の位置を示す断面図である。１……複写機（画像形成装置）本体、２……コ
ンタクトガラス（原稿載置部）、１３……原稿位
置決め部材、１８……板ばね（付勢手段）、１９
……押圧部材、２０……保持部材、Ａ……自動原
稿送り装置、ｌ……押圧部材の突出量。 FIG. 1 is a cross-sectional view showing the mounting structure of a pressing member in an embodiment of the present invention, FIG. 2 is a perspective view showing the external appearance of an automatic document feeder and a copying machine main body in the same embodiment, and FIG. FIG. 4 is an exploded perspective view showing the attachment structure of the document positioning member to the main body of the copying machine; FIG. 5 is a cross-sectional view showing the internal structure of the document feeder; FIG. FIG. 6 is a sectional view showing the position of the document positioning member when the automatic document feeder is closed. DESCRIPTION OF SYMBOLS 1... Copying machine (image forming apparatus) main body, 2... Contact glass (document placement part), 13... Original positioning member, 18... Leaf spring (biasing means), 19
...Press member, 20...Holding member, A...Automatic document feeder, l...Protrusion amount of press member.

Claims

[Scope of utility model registration request]

an automatic document feeder that opens and closes between a closed position that covers a document placement section of the image forming apparatus and an open position that opens the document placement section; and a position downstream of the document placement section in the document conveyance direction. The image forming apparatus is provided on the document tray and is movable between a position protruding upward from the top surface of the document placement section and a position flush with the top surface of the document placement section or a position recessed downward from the top surface. A document positioning member attached to the main body, a biasing means for biasing the document positioning member in a protruding direction, and a biasing means protruding from the lower surface of the automatic document feeder, when the automatic document feeder is in a closed position. a pressing member that presses the document positioning member in the retracting direction, and the pressing member is attached to the lower surface of the automatic document feeder so that the amount of protrusion thereof is variable;
A document positioning structure for an image forming apparatus, comprising a holding member that holds the amount of protrusion of the pressing member.