JPH0210341U

JPH0210341U -

Info

Publication number: JPH0210341U
Application number: JP8727788U
Authority: JP
Priority date: 1988-06-30
Filing date: 1988-06-30
Publication date: 1990-01-23
Anticipated expiration: 2003-06-30
Also published as: JP2511579Y2

Description

[Brief explanation of drawings]

第１図は、本考案に係る給紙装置を備えた画像
形成装置の断面図、第２図は、本考案に係る給紙
装置の一部切り欠き側面図、第３図は、操作部の
概略平面図、第４図はブロツク図、第５図はフロ
ーチヤート、第６図は、本考案に係る他の実施例
の要部断面図である。１……画像形成装置、１４……レジストローラ
（給送ローラ）、２３……給紙開口、２４……手
差しトレイ、２４ａ……手差しトレイの基端部、
２４ｂ……回動軸、２６……外部給紙装置、２７
……シート部材収納部、２８……送りローラ、２
９……案内部、２４ｄ……位置決め突起（位置決
め手段）、３５……位置決め凹部（位置決め手段
）、Ｂ……案内溝。 FIG. 1 is a cross-sectional view of an image forming apparatus equipped with a paper feeding device according to the present invention, FIG. 2 is a partially cutaway side view of the paper feeding device according to the present invention, and FIG. 3 is a diagram of an operation unit. 4 is a block diagram, FIG. 5 is a flowchart, and FIG. 6 is a sectional view of a main part of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Image forming apparatus, 14... Registration roller (feed roller), 23... Paper feed opening, 24... Manual feed tray, 24a... Base end of manual feed tray,
24b...Rotation axis, 26...External paper feeding device, 27
... Sheet member storage section, 28 ... Feed roller, 2
9... Guide portion, 24d... Positioning protrusion (positioning means), 35... Positioning recess (positioning means), B... Guide groove.

Claims

[Claims for Utility Model Registration] (1) A manual feed tray for placing a sheet member, a paper feed opening for inserting the sheet member placed on the manual feed tray into the main body of an image forming apparatus;
In a paper feeding device of an image forming apparatus, the paper feeding device includes an external paper feeding device connectable to the paper feeding opening, and a feeding roller for feeding a sheet member inserted from the paper feeding opening. An image forming apparatus characterized in that an end portion is located at a position that horizontally divides the paper feed opening, and the external paper feed device is connectable to the paper feed opening from below the manual feed tray. Paper feed device in the device. (2) The external sheet feeding device includes a sheet member storage section capable of storing a plurality of sheet members, a feed roller for feeding out the sheet members stored in the sheet member storage section, and a sheet member that is fed out by the feed roller. 2. The sheet feeding device in an image forming apparatus according to claim 1, further comprising a guide portion for guiding the sheet member. (3) When only the manual feed tray is installed in the image forming apparatus, the external paper feed device can be connected without moving the manual feed tray, and the feed from the manual feed tray and the external paper feed can be connected. 2. The paper feeding device according to claim 1, wherein feeding from the device is selectively performed. (4) The manual feed tray is rotatable around the base end portion, and when the external paper feed device is connected to the image forming apparatus main body, the manual feed tray is angularly displaced upward. Item 2. A paper feeding device in the image forming apparatus according to item 1. (5) The base end of the manual feed tray is slidable upward, and the manual feed tray moves upward when the external paper feeding device is connected to the image forming apparatus main body. A paper feeding device in the image forming apparatus described above. (6) A claim characterized in that when the external paper feeding device is connected below the manual feeding tray, positioning means for positioning the manual feeding tray is provided on the manual feeding tray and the external paper feeding device. 1,
6. A paper feeding device in the image forming apparatus according to 2, 4, or 5. (7) a manual feed tray for placing a sheet member; a paper feed opening for inserting the sheet member placed on the manual feed tray into the image forming apparatus main body;
A paper feeding device for an image forming apparatus including an external paper feeding device connectable to the paper feeding opening, and a feeding roller for feeding a sheet member inserted from the paper feeding opening. The base end of the manual feed tray is positioned at the lower end, and the manual feed tray is slidable upward, and when the external paper feed device is connected to the paper feed opening from below the manual feed tray, the A paper feed device for an image forming apparatus, wherein a manual feed tray slides upward so that the external paper feed device can be connected to the paper feed opening. (8) A claim characterized in that, when the external paper feeding device is connected below the manual feeding tray, positioning means for positioning the manual feeding tray is provided on the manual feeding tray and the external paper feeding device. 7. A paper feeding device in the image forming apparatus according to 7.