JP2014144821A5

JP2014144821A5 -

Info

Publication number: JP2014144821A5
Application number: JP2013012574A
Authority: JP
Filing date: 2013-01-25
Publication date: 2015-06-25

Description

上記課題を解決するために、本発明の給紙装置は、装置本体の装着部に着脱自在な給紙カセットを備え、上記給紙カセットは、用紙収納部から後方に連設された延長部と、上記給紙カセットの両側面において上記用紙収納部の前端から上記延長部に亘って水平方向に形成された装着係合部と、上記延長部の前後の中間の位置で上記装着係合部の下面に配置された第１のコロと、上記第１のコロと上記延長部の後端との中間の位置で上記装着係合部の上面に配置された第２のコロと、を備え、上記装着部は、上記装置本体のフレームに固設され、上記装着部に装着される上記給紙カセットの上記装着係合部の下面に沿って延在する位置に配置され、上記第１のコロを介して上記給紙カセットを支持する下ガイドレールと、該下ガイドレールの前部に配置され、上記装着部に装着される上記給紙カセットの上記装着係合部の下面を介して上記給紙カセットを支持する本体側コロと、上記下ガイドレールに対向する位置に配置され、上記装着部に装着される上記給紙カセットの上記装着係合部の上面との間に前下がりに狭まり且つ上記装着部の装着口まで連続する最も狭い間隙において下面を上記装着係合部の上記第２のコロに接触させて上記給紙カセットの後端部の上方への移動を禁止する上ガイドレールと、を備える、ように構成される。 In order to solve the above problems, the sheet feeding apparatus of the present invention comprises a universal paper feed cassette attachment to the mounting portion of the apparatus main body, the paper feeding cassette, extension from the paper storage portion provided continuously to the rear A mounting engagement portion formed in a horizontal direction from the front end of the sheet storage portion to the extension portion on both side surfaces of the sheet feeding cassette, and the mounting engagement portion at a position intermediate between the front and rear of the extension portion. A first roller disposed on the lower surface of the first roller, and a second roller disposed on the upper surface of the mounting engagement portion at a position intermediate between the first roller and the rear end of the extension, The mounting portion is fixed to a frame of the apparatus main body, and is disposed at a position extending along a lower surface of the mounting engagement portion of the paper feeding cassette to be mounted on the mounting portion. A lower guide rail that supports the paper cassette through the front and a front of the lower guide rail The main body side roller that supports the paper feed cassette via the lower surface of the mounting engagement portion of the paper feed cassette that is mounted on the mounting portion, and is positioned at a position facing the lower guide rail, The lower surface of the mounting engagement portion is narrowed between the upper surface of the mounting engagement portion of the paper feed cassette to be mounted on the mounting portion and narrowed forward and down to the mounting opening of the mounting portion. An upper guide rail that is brought into contact with the second roller and prohibits the upward movement of the rear end of the sheet feeding cassette.

Claims

A paper feeding device comprising a paper feeding cassette that is detachably attached to a mounting portion of the device body,
The paper cassette is
And an extension portion which is provided continuously to the rear from the paper housing unit,
A mounting engagement portion formed in a horizontal direction from the front end of the paper storage portion to the extension portion on both side surfaces of the paper feed cassette;
A first roller disposed on the lower surface of the mounting engagement portion at an intermediate position before and after the extension portion;
A second roller disposed on the upper surface of the mounting engagement portion at a position intermediate between the first roller and the rear end of the extension;
With
The mounting part is
It is fixed to the frame of the apparatus main body, and is disposed at a position extending along the lower surface of the mounting engagement portion of the paper feed cassette that is mounted on the mounting portion, and the feeding is performed via the first roller. A lower guide rail that supports the paper cassette;
A body-side roller that is disposed at a front portion of the lower guide rail and supports the paper feed cassette via a lower surface of the attachment engaging portion of the paper feed cassette that is attached to the attachment portion;
It is arranged at a position facing the lower guide rail, narrows forwardly downward from the upper surface of the mounting engagement portion of the paper feed cassette mounted on the mounting portion, and continues to the mounting opening of the mounting portion. An upper guide rail for bringing the lower surface into contact with the second roller of the mounting engagement portion in a narrow gap and prohibiting the upward movement of the rear end portion of the paper feed cassette;
Comprising
A paper feeder characterized by that.

2. The sheet feeding cassette and the mounting unit are configured to prevent a front end of the sheet feeding cassette from being inclined downward when the sheet feeding cassette is pulled out from the mounting unit. Paper feeder.