JPH0321036U - - Google Patents
Info
- Publication number
- JPH0321036U JPH0321036U JP8098989U JP8098989U JPH0321036U JP H0321036 U JPH0321036 U JP H0321036U JP 8098989 U JP8098989 U JP 8098989U JP 8098989 U JP8098989 U JP 8098989U JP H0321036 U JPH0321036 U JP H0321036U
- Authority
- JP
- Japan
- Prior art keywords
- presser plate
- plate
- paper feed
- feed cassette
- cassette
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
第１図は本考案の押え機構を備えた給紙カセツ
トを使用した画像形成装置（レーザプリンタ）の
内部機構の全体構成説明図、第２図は本考案を適
用した給紙カセツトの斜視図、第３図ａ及びｂは
ロツクプレートの構成及び動作を示す平面図及び
正面図、第４図はカセツト装着時におけるロツク
片と押え板との係合状態説明図、第５図はカセツ
トを装着完了する直前における状態説明図、第６
図は押え板がロツクされるときの状態説明図であ
る。
１０……画像形成装置本体、１０ａ……上部構
造体、１０ｂ……下部構造体、１１……軸、１２
……感光体ドラム、１３……帯電手段、１４……
現像手段、１５……転写手段、１６……クリーニ
ング手段、１８……光書込み手段、１９……給紙
カセツト、２０……給紙コロ、２３……バネ、２
５……押え板、２５ａ……被ロツク片、２６……
コーナー爪、２７……搬送路、２８……搬送コロ
、４０……ロツクプレート、４１……ロツクプレ
ートスプリング、４０ａ……係止孔。
FIG. 1 is an explanatory diagram of the overall internal structure of an image forming apparatus (laser printer) using a paper feed cassette equipped with the holding mechanism of the present invention, and FIG. 2 is a perspective view of the paper feed cassette to which the present invention is applied. Figures 3a and b are plan and front views showing the structure and operation of the lock plate, Figure 4 is an explanatory diagram of the state of engagement between the lock piece and the presser plate when the cassette is installed, and Figure 5 is the completed installation of the cassette. State explanatory diagram immediately before
The figure is an explanatory diagram of the state when the presser plate is locked. DESCRIPTION OF SYMBOLS 10... Image forming apparatus main body, 10a... Upper structure, 10b... Lower structure, 11... Shaft, 12
...Photosensitive drum, 13...Charging means, 14...
Developing means, 15... Transfer means, 16... Cleaning means, 18... Optical writing means, 19... Paper feeding cassette, 20... Paper feeding roller, 23... Spring, 2
5...Press plate, 25a...Locked piece, 26...
Corner claw, 27... Conveyance path, 28... Conveyance roller, 40... Lock plate, 41... Lock plate spring, 40a... Locking hole.
Claims (1)
、該給紙カセツトは昇降自在に枢支された押え板
の先端部を常時上方へ付勢するバネを備え、該押
え板からは下方へ向けて被ロツク片が突設され、
該押え板の下方には記録紙の搬送方向と交差する
方向に進退自在なロツクプレートが配設されると
ともに該ロツクプレートには該ロツクプレートが
内方へ引つ込んだときに該被ロツク片を係止可能
な係止手段が設けられ、 画像形成装置本体側には、該給紙カセツトを装
着したときに該ロツクプレートに係合してこれを
カセツト内方へ押込む突起と、該給紙カセツトを
所定位置まで抜取つた時に該押え板を前記バネに
抗して水平姿勢に引き下げる押え板ロツク片が突
設されており、 該押え板ロツク片の形成位置は、該押え板ロツ
ク片が前記押え板を水平状態に引き下げる時点が
、前記ロツクプレートが前記突起により押圧され
てカセツト外方へ突出するのと同時或はそれ以降
になるように設定されていることを特徴とする給
紙カセツトの押え板ロツク機構。[Claims for Utility Model Registration] In a paper feed cassette for an optical writing image forming apparatus, the paper feed cassette is provided with a spring that constantly urges upward the tip of a presser plate that is pivotally supported to be able to move up and down. A locking piece protrudes downward from the
A lock plate is disposed below the holding plate and is movable in a direction intersecting the conveyance direction of the recording paper. A locking means capable of locking the paper feed cassette is provided on the main body side of the image forming apparatus. A presser plate lock piece is protruded to pull the presser plate down to a horizontal position against the spring when the paper cassette is pulled out to a predetermined position, and the presser plate lock piece is formed at a position where the presser plate lock piece is formed. A paper feed cassette characterized in that the time point at which the holding plate is lowered to a horizontal state is set to be at the same time as or after the time when the lock plate is pressed by the protrusion and protrudes outward from the cassette. Presser plate lock mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8098989U JPH0321036U (en) | 1989-07-10 | 1989-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8098989U JPH0321036U (en) | 1989-07-10 | 1989-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321036U true JPH0321036U (en) | 1991-03-01 |
Family
ID=31626526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8098989U Pending JPH0321036U (en) | 1989-07-10 | 1989-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321036U (en) |
-
1989
- 1989-07-10 JP JP8098989U patent/JPH0321036U/ja active Pending
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