JPH0414232U

JPH0414232U -

Info

Publication number: JPH0414232U
Application number: JP5639190U
Authority: JP
Priority date: 1990-05-29
Filing date: 1990-05-29
Publication date: 1992-02-05

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の給紙カセツトの斜視
図、第２図はその平面図、第３図はその側断面図
、第４図はその要部を拡大して示す断面図、第５
図は従来の給紙カセツトの用紙サイズ検知機構の
１例を示す斜視図である。１……給紙カセツト、２，３……サイドフエン
ス、４……バツクフエンス、５，６……ガイド溝
、７，８……係合ピン、９……軸、１０……カム
円板、１１，１４……カム溝、１２……ロツド、
１３……係合ピン、１５……ガイド部材、１６…
…用紙サイズ情報検知装置、１７……突起、１８
……用紙サイズ情報発信装置。 FIG. 1 is a perspective view of a paper feed cassette according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side sectional view thereof, FIG. 5
The figure is a perspective view showing an example of a paper size detection mechanism for a conventional paper feed cassette. 1... Paper feed cassette, 2, 3... Side fence, 4... Back fence, 5, 6... Guide groove, 7, 8... Engagement pin, 9... Shaft, 10... Cam disc, 11 , 14...cam groove, 12...rod,
13... Engaging pin, 15... Guide member, 16...
...Paper size information detection device, 17...Protrusion, 18
...Paper size information transmission device.

Claims

[Scope of Utility Model Registration Claim] In order to make it possible to selectively stack paper of multiple sizes by attaching it to the main body of the device and making it possible to selectively stack paper of multiple sizes, a fence that abuts the edge of the paper stack is installed at the edge of the paper stack corresponding to the stacking position of each size of paper. An image forming apparatus having a paper size information transmitting means which is movable at an edge position and is attached to a predetermined position of the apparatus main body and provides size information of the stacked sheets to a paper size information detecting means provided on the apparatus main body. In the paper feed cassette of the apparatus, a guide groove rotatable around a shaft provided at the bottom of the paper feed cassette, fixed to the fence, and provided in the bottom paper of the paper feed cassette in a direction perpendicular to the surface of the fence. It has a cam groove that engages with a movable engagement pin, and by rotating the fence to a rotation position according to the paper size, the fence is inserted into the paper via the cam groove and the engagement pin. It has a cam disc that moves and positions the paper to a position according to the paper size, and when the paper feed cassette is attached to the main body of the machine, the paper feed cassette is attached to the main body of the machine at a rotating position corresponding to each paper size around the cam disc. A paper feed cassette characterized in that a paper size information transmitting means is provided at a position opposite to a paper size information detecting means provided at the paper feed cassette.