JP3281463B2 - Paper feed / discharge device in image forming apparatus - Google Patents
Paper feed / discharge device in image forming apparatusInfo
- Publication number
- JP3281463B2 JP3281463B2 JP26092093A JP26092093A JP3281463B2 JP 3281463 B2 JP3281463 B2 JP 3281463B2 JP 26092093 A JP26092093 A JP 26092093A JP 26092093 A JP26092093 A JP 26092093A JP 3281463 B2 JP3281463 B2 JP 3281463B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper feed
- tray
- image forming
- forming apparatus
- 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.)
- Expired - Fee Related
Links
Landscapes
- Handling Of Cut Paper (AREA)
- Manual Feeding Of Sheets (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子写真複写機、プリ
ンタ、ファクシミリ装置等の画像形成装置における給紙
・排紙装置の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a paper feeding / discharging device in an image forming apparatus such as an electrophotographic copying machine, a printer, a facsimile machine and the like.
【０００２】[0002]
【従来の技術】電子写真複写機やファクシミリ装置で
は、一般に、給紙部と排紙部とが装置本体の別の個所に
形成されている。そして、これに用いる給紙トレイは、
上面開放状の平面視略矩形状のトレイ本体の底板上に給
紙側が上向きにばね付勢された受け板の上に、用紙を多
数枚積層状態で収納し、この給紙トレイを画像形成装置
の本体下部における給紙部に向かって略水平状に差し込
むように構成されている。2. Description of the Related Art In an electrophotographic copying machine or a facsimile machine, a paper feed section and a paper discharge section are generally formed at different places in the apparatus main body. And the paper tray used for this is
A large number of sheets are stored in a stacked state on a receiving plate in which the paper supply side is spring-biased upward on a bottom plate of a tray main body having an open top surface and a substantially rectangular shape in plan view, and the paper supply tray is placed in an image forming apparatus. It is configured to be inserted substantially horizontally toward the paper feeding section at the lower part of the main body.
【０００３】そして、この給紙トレイ全体が画像形成装
置の本体内にすっぽりと収納されるように構成すると、
画像形成装置の本体が嵩張るという問題があった。他
方、プリンタ装置付きワードプロセッサやパーソナルコ
ンピュータに接続して使用するプリンタ装置では、特開
平４−７０３６８号公報等に開示されているように、プ
リンタの本体機構部の上側に自動給紙装置を着脱自在に
装着できるように構成し、プリンタ本体の梱包とは別個
に自動給紙装置のみを単独で梱包して梱包の嵩を小さく
しようとすることが考えられている。If the entire sheet feeding tray is configured to be completely stored in the main body of the image forming apparatus,
There is a problem that the main body of the image forming apparatus is bulky. On the other hand, in a printer connected to a word processor with a printer or a personal computer, an automatic paper feeder is detachably mounted on the upper side of a main body mechanism of the printer as disclosed in Japanese Patent Application Laid-Open No. 4-70368. It has been proposed to reduce the bulk of the package by packing only the automatic sheet feeder separately from the package of the printer main body, separately from the package of the printer body.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記先
行技術に示す自動給紙装置では、給紙ローラ等の駆動部
のケースに対して用紙を積層して支持する左右一対の用
紙ガイド体やその前部の排紙受け体が別別の方向に突出
している形態であるため、この給紙装置を単独で梱包す
るとしても嵩張るという問題を解決することができなか
った。However, in the automatic paper feeder shown in the prior art, a pair of left and right paper guides for laminating and supporting the paper on a case of a driving unit such as a paper feed roller is provided. However, since the paper discharge receivers of each of the parts protrude in different directions, the problem of bulkiness cannot be solved even if this paper feed device is packed alone.
【０００５】本発明は、この問題を解決すべくなされた
ものであって、プリンタ等の画像形成装置における給紙
部と排紙部とを隣接させて設け、給紙トレイの上部側を
排紙受け部に兼用できるようにして、コンパクト化を図
り、且つ梱包も嵩張らないようにした画像形成装置にお
ける給紙・排紙装置を提供することを目的とするもので
ある。SUMMARY OF THE INVENTION The present invention has been made to solve this problem. In the image forming apparatus such as a printer, a paper feed unit and a paper discharge unit are provided adjacent to each other, and the upper side of a paper feed tray is discharged. It is an object of the present invention to provide a sheet feeding / discharging device in an image forming apparatus which can be used also as a receiving section, is compact, and is not bulky.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明の画像形成装置における給紙・排紙装置は、
画像形成装置における本体に、給紙部とその上側に隣接
して排紙部とを設け、前記給紙部に対して着脱可能とし
た給紙トレイの上面には、前記排紙部から排紙される用
紙を支持するための用紙受け板の広幅の基板部を、該用
紙受け板の狭幅の突出部が給紙トレイにおける給紙部へ
の挿入方向と反対側に突出した状態と、給紙部への挿入
方向と同じ側に突出して給紙トレイの一部を覆う状態と
に、正逆両向きにて嵌合できる係合手段を形成したもの
である。In order to achieve the above object, a sheet feeding / discharging device in an image forming apparatus according to the present invention comprises:
The body of the image forming apparatus, adjacent to its upper sheet feeding unit is provided a paper discharge portion, and detachable from the paper feed portion
And on the upper surface of the paper feed tray, the substrate portion of the sheet receiving plate wide for supporting the sheet ejected from the sheet ejection section, the term
The narrow protrusion of the paper tray is fed to the paper feed section of the paper tray
With the paper protruding in the opposite direction to the paper
In a state where it projects to the same side as the
And engagement means which can be fitted in both forward and reverse directions.
【０００７】[0007]
【実施例】次に、本発明を具体化した実施例について説
明する。図１は画像形成装置の一例としてのインクジェ
ット式のプリンタ装置１の斜視図、図２は排紙兼用の給
紙トレイ２の分解斜視図、図３は前記給紙トレイ２をプ
リンタ装置１における本体上面の給紙部３に装着する状
態を示す斜視図、図４は要部側断面図である。プリンタ
装置１の本体はプリンタの機構部６及び電子制御用の基
板７、駆動モータ（図示せず）等を収納した下ケース４
と機構部６を上から覆う上ケース５とからなり、下ケー
ス４と上ケース５との合わせ部にて嵌め合わせ連結す
る。Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view of an ink-jet printer 1 as an example of an image forming apparatus, FIG. 2 is an exploded perspective view of a paper tray 2 that also serves as a paper discharge, and FIG. FIG. 4 is a perspective view showing a state of being attached to the paper feeding unit 3 on the upper surface, and FIG. The main body of the printer 1 is a lower case 4 containing a mechanism 6 of the printer, a board 7 for electronic control, a drive motor (not shown), and the like.
And an upper case 5 that covers the mechanism section 6 from above. The lower case 4 and the upper case 5 are fitted and connected at a fitting portion.
【０００８】下ケース４と上ケース５との合わせ部の一
側面には、図４に理解できるような上板８と下板９とに
より内部中空状の横長に形成された手差し用ガイド体１
０の用紙挿入部１１を挟持し、前記上板８と下板９とが
接近した用紙導出部１２から一体的に突出する係止爪１
４を、機構部６における金属板製のフレーム１３に着脱
自在に装着支持させている。On one side surface of a joint portion between the lower case 4 and the upper case 5, a manual insertion guide body 1 formed by an upper plate 8 and a lower plate 9 as shown in FIG.
0, and the upper and lower plates 8 and 9 integrally project from the paper lead-out portion 12 where the upper and lower plates 9 and 9 approach each other.
4 is removably attached to and supported by a metal plate frame 13 in the mechanism section 6.
【０００９】前記手差し用ガイド体１０内に差し込まれ
た用紙１５ａは前記フレーム１３に横長に形成された隙
間１６からプラテン１７の上側周面に導かれ、インクジ
ェット式の印字部１８との間を通過して、上ケース５の
上面に着脱自在に載置されたトップカバー１９に形成さ
れた排紙口１９ａから、前記給紙トレイ２の表面側に配
置した用紙受け板２０に向かって排出される。前記下ケ
ース４、上ケース５、手差し用ガイド体１０及びトップ
カバー１９は各々合成樹脂製である。The paper 15a inserted in the manual guide body 10 is guided to the upper peripheral surface of the platen 17 from the gap 16 formed in the frame 13 in a horizontally long state, and passes between the ink jet printing unit 18 and the paper 15a. Then, the paper is discharged from a paper discharge port 19 a formed in the top cover 19 detachably mounted on the upper surface of the upper case 5 toward the paper receiving plate 20 arranged on the front side of the paper feed tray 2. . The lower case 4, the upper case 5, the manual guide 10 and the top cover 19 are each made of synthetic resin.
【００１０】給紙トレイ２は、図２〜図６から理解でき
るように、上面開放状の平面視矩形のトレイ本体２１
と、支持板２３とからなり、支持板２３はその上端側が
トレイ本体２１における支持ピン２４を中心に上下回動
するように装着されている。支持板２３は、トレイ本体
２１の底板２１ａの下部寄り部位上にコイルばね２２を
介して上向きに付勢されている。また、前記底板２１ａ
の表面に沿って一側板２１ｂの外に延びる操作レバー２
５にて前記支持板２３をコイルばね２２による付勢許可
状態と支持板２３を底板２１ａに接近させた付勢禁止状
態とに選択的に位置保持できる構成とする。さらに底板
２１ａの上端側には平面視コ字型の金属製の支持棒２６
の基部を抜き差し自在に装着できる構成である。As can be understood from FIGS. 2 to 6, the paper feed tray 2 is a tray body 21 having an open top surface and a rectangular shape in plan view.
And the support plate 23, and the upper end side of the support plate 23
Vertical rotation about the support pin 24 in the tray body 21
It is attached to be. The support plate 23 is a tray main body.
The coil spring 22 is placed on the lower part of the bottom plate 21a of the coil spring 21.
Is biased upwards through. The bottom plate 21a
Operating lever 2 extending out of one side plate 21b along the surface of
At 5, the position of the support plate 23 can be selectively held in a state in which the biasing by the coil spring 22 is permitted and a state in which the support plate 23 is in a biased state in which the support plate 23 is brought close to the bottom plate 21a. Further, a metal support rod 26 having a U-shape in plan view is provided on the upper end side of the bottom plate 21a.
The base can be attached and detached freely.
【００１１】トレイ本体２１の左右両側板部２１ｂ，２
１ｂには、前記用紙受け板２０における広幅の基板部２
０ａの左右両側端を支持する嵌合部２７，２７と、用紙
受け板２０を下側にずれ落ち不能に支持するストッパー
部２８，２８とからなる係合手段が設けられている。こ
の構成をさらに詳述すると、前記広幅の基板部２０ａの
左右幅寸法はＨ１であり、その長さはＬ１とし、狭幅の
突出部２０ｂの幅寸法をＨ２、長さ寸法をＬ２とすると
（図２参照）、トレイ本体２１の左右両側板部２１ｂ，
２１ｂの内側面に段付き状に形成した嵌合部２７，２７
間の寸法はＨ１に略等しくし、また、両嵌合部２７，２
７の長さ寸法はＬ１に略等しくなるように形成する（図
５参照）。The left and right side plate portions 21b, 2 of the tray body 21
1b includes a wide substrate portion 2 of the paper receiving plate 20.
An engagement means is provided which includes fitting portions 27, 27 for supporting both left and right ends of Oa, and stopper portions 28, 28 for supporting the sheet receiving plate 20 so as to be displaced downward and unable to fall. More specifically, if the width of the wide substrate portion 20a is H1, the length is L1, the width of the narrow protrusion 20b is H2, and the length is L2 ( 2), the left and right side plate portions 21b of the tray body 21,
Stepped fitting portions 27, 27 formed on the inner surface of 21b
The distance between them is substantially equal to H1.
7 is formed so as to have a length substantially equal to L1 (see FIG. 5).
【００１２】そして、両嵌合部２７，２７の下端部近傍
に互いに内向きに突出させたストッパー部２８、２８
が、嵌合部２７に嵌まった状態の基板部２０ａの板厚部
分を押えることにより、基板部２０ａが嵌合部２７から
不用意に浮き上がるのを防止できるものである。この場
合、図３及び図５に示すように、用紙受け板２０の狭幅
の突出部２０ｂがトレイ本体２１における給紙部３への
挿入方向と反対側に突出するように、基板部２０ａを前
記左右両嵌合部２７，２７に嵌め込んだ状態では、前記
トレイ本体２１における支持板２３に積層された単票の
用紙１５ｂは底板２１ａの下端部側と前記用紙受け板２
０の下端縁との間の空間を介して後述する給紙部３に向
かって給紙される。トレイ本体２１の上下方向の長さを
寸法Ｌ３（＞Ｌ１＞Ｌ２）に設定すると、前記用紙１５
ｂが通過し得る空間の上下長さはＬ３−Ｌ１となる。Stoppers 28, 28 projecting inward from each other near the lower ends of the fitting portions 27, 27.
However, by pressing the thick portion of the board portion 20 a fitted in the fitting portion 27, the board portion 20 a can be prevented from inadvertently floating from the fitting portion 27. In this case, as shown in FIGS. 3 and 5, the substrate unit 20 a is positioned such that the narrow projection 20 b of the sheet receiving plate 20 projects in the direction opposite to the direction in which the tray main body 21 is inserted into the paper feeding unit 3. In the state of being fitted into the right and left fitting portions 27, 27, the cut sheet 15 b laminated on the support plate 23 of the tray main body 21 is connected to the lower end of the bottom plate 21 a and the sheet receiving plate 2.
The sheet is fed toward a sheet feeding unit 3 to be described later via a space between the lower end of the sheet and the sheet P. When the vertical length of the tray main body 21 is set to <br/> dimension L3 (>L1> L2), the paper 15
The vertical length of the space through which b can pass is L3-L1.
【００１３】また、トレイ本体２１と用紙受け板２０と
をコンパクトに梱包するためには、図６に示すように、
用紙受け板２０の広幅の基板部２０ａの向きを前記図５
の場合と逆にして前記嵌合部２７，２７内に嵌め入れ
る。これにより、用紙受け板２０における突出部２０ｂ
の半分以上の長さがトレイ本体２１上に被さることにな
り、この突出部２０ｂの長さが少なくなって梱包をコン
パクトにすることができる。In order to pack the tray body 21 and the paper receiving plate 20 compactly, as shown in FIG.
The direction of the wide substrate portion 20a of the paper receiving plate 20 is shown in FIG.
In the reverse of the above case, it is fitted into the fitting portions 27, 27. As a result, the protruding portion 20b of the paper receiving plate 20
Is covered on the tray body 21, the length of the protruding portion 20b is reduced, and the packing can be made compact.
【００１４】なお、梱包時には、前記コ字型の支持棒２
６を支持板２３上に載せた状態で用紙受け板２０を被せ
ると、当該支持棒２６も脱落・紛失することがない。ま
た、前記嵌合部２７とストッパー部２８とからなる係合
手段に代えて、基板部２０ａの左右両側裏面を支持する
載置部をトレイ本体２１の左右両側板部２１ｂ，２１ｂ
に設ける一方、基板部２０ａの裏面にはトレイ本体２１
の左右両側板部２１ｂ，２１ｂに凹み形成した凹状係止
部に係止する突起を設けて相互のずれ移動を防止するよ
うにしても良い。At the time of packing, the U-shaped support rod 2 is used.
When the paper receiving plate 20 is put on the support plate 23 while the support plate 26 is placed on the support plate 23, the support bar 26 does not fall off or is lost. Also, instead of the engaging means consisting of the fitting portion 27 and the stopper portion 28, the mounting portions supporting the right and left back surfaces of the substrate portion 20a are replaced with the left and right side plate portions 21b, 21b of the tray body 21.
The tray body 21 is provided on the back surface of the substrate portion 20a.
The left and right side plate portions 21b, 21b may be provided with projections to be engaged with concave engagement portions formed to be recessed to prevent mutual displacement movement.
【００１５】なお、給紙部３における側面視略Ｄ字状で
円周面が摩擦係数の大きい給紙ローラ３０と、合成樹脂
製等の側面視略矩形状の紙押え体３１とは、前記トップ
カバー１９における排紙口１９ａに隣接するように仕切
り板１９ｂの下面側に設けた回転駆動軸３２に装着され
ており（図３及び図４参照）、図示しないモータにて間
欠的に回動する回転駆動軸３２に対して、複数の給紙ロ
ーラ３０は一体的に回動するように固着され、同じく複
数の紙押え体３１における弾性的な係止爪（図示せず）
は回転駆動軸３２の適宜個所に形成した係止溝（図示せ
ず）に係合して回転駆動軸３２の長手方向には移動不能
で、且つ回転駆動軸３２の回動と無関係に回転自在に遊
嵌されている。The paper feed roller 30 in the paper feed unit 3 having a substantially D-shaped side view and a circumferential surface having a large friction coefficient, and a paper holding body 31 made of a synthetic resin or the like having a substantially rectangular shape in a side view are described above. It is mounted on a rotary drive shaft 32 provided on the lower surface side of the partition plate 19b so as to be adjacent to the paper outlet 19a of the top cover 19 (see FIGS. 3 and 4), and is intermittently rotated by a motor (not shown). The plurality of paper feed rollers 30 are fixed so as to rotate integrally with the rotating drive shaft 32 to be rotated, and similarly, elastic locking claws (not shown) on the plurality of paper press bodies 31.
Is engaged with a locking groove (not shown) formed at an appropriate position of the rotary drive shaft 32 so as to be immovable in the longitudinal direction of the rotary drive shaft 32 and rotatable independently of the rotation of the rotary drive shaft 32. Is loosely fitted.
【００１６】この紙押え体３１は前記回転駆動軸３２の
軸心を挟んで給紙トレイ２の下端から上方に向かって長
く、且つリブ等の肉厚の相違により紙押え体３１の下端
側が重くなるように形成されている。そして、紙押え体
３１の長手辺のうち一辺である押え面３１ａが、前記支
持板２３に積層された用紙１５ｂのうちの最上面に当接
可能であり、前記軸心から押え面３１ａまでの寸法が給
紙ローラ３０における平坦周面までの寸法より大きく、
且つ給紙ローラ３０における円周面までの寸法より小さ
くなるように設定されている。これにより、上下長手の
押え面３１ａは、給紙ローラ３０における平坦周面と前
記積層された用紙１５ｂの表面との接触を阻止し、且つ
給紙ローラ３０における円周面との圧接を許容するによ
うに構成されるものである。The paper presser 31 is longer upward from the lower end of the paper feed tray 2 across the axis of the rotary drive shaft 32, and the lower end of the paper presser 31 is heavy due to the difference in thickness of ribs and the like. It is formed so that it becomes. A pressing surface 31a, which is one of the long sides of the paper pressing body 31, can abut on the uppermost surface of the paper 15b laminated on the support plate 23, and extends from the axis to the pressing surface 31a. The dimension is larger than the dimension up to the flat peripheral surface of the feed roller 30,
Further, it is set to be smaller than the dimension up to the circumferential surface of the paper feed roller 30. Thus, the upper and lower longitudinal pressing surfaces 31a prevent the flat peripheral surface of the paper feeding roller 30 from contacting with the surface of the stacked paper 15b, and allow the paper feeding roller 30 to press against the circumferential surface. It is configured as follows.
【００１７】この構成により、給紙しない状態では、給
紙ローラ３０はその平坦周面が給紙トレイ２の表面側と
対面するようにして回転停止されており、且つ紙押え体
３１の押え面３１ａは前記平坦周面よりも給紙トレイ２
の表面に近い側に位置する。従って、給紙部３に対して
給紙トレイ２を外すと、前記回転駆動軸３２に遊嵌され
た紙押え体３１はその自重の偏倚により下端側が下向く
ように自由回動し、且つ押え面３１ａは給紙トレイ２の
表面と対向する姿勢で安定する。次に、給紙トレイ２を
給紙部３に向かって斜め下向きに装着し、操作レバー２
５の回動操作にて支持板２３を上向き付勢させると、当
該支持板２３に積層されている用紙１５ｂのうちの最上
表面が前記紙押え体３１における上下長手の押え面３１
ａに規制されることになり、前記積層された用紙１５ｂ
は凸湾曲するように変形することなく、平坦状に保持さ
れ、且つ給紙ローラ３０における平坦周面と接触するこ
とも阻止される。With this configuration, when the paper is not fed, the paper feed roller 30 is stopped from rotating so that the flat peripheral surface thereof faces the front side of the paper feed tray 2, and the pressing surface of the paper pressing body 31 is stopped. 31a is the paper feed tray 2 more than the flat peripheral surface.
Located on the side close to the surface. Therefore, when the paper feed tray 2 is removed from the paper feed unit 3, the paper presser 31 loosely fitted to the rotary drive shaft 32 is freely rotated so that the lower end is downward due to the bias of its own weight. The surface 31 a is stabilized in a posture facing the surface of the paper feed tray 2. Next, the paper feed tray 2 is mounted obliquely downward toward the paper feed unit 3 and the operation lever 2
When the support plate 23 is urged upward by the rotation operation of the fifth step 5, the uppermost surface of the sheets 15b stacked on the support plate 23 is vertically pressed by the pressing surface 31 of the paper pressing body 31.
a, the laminated paper 15b
Is held flat without deformation so as to be convexly curved, and is also prevented from contacting the flat peripheral surface of the sheet feeding roller 30.
【００１８】そして、給紙指令があると、前記回転駆動
軸３２は図４において時計回りに一回転し、給紙ローラ
３０が回動し、その円周面が紙押え体３１における押え
面３１ａ側に来ると、当該円周面が積層された用紙１５
ｂの表面を圧接しつつ回動することになるので、積層さ
れたうちの最上の一枚のみの用紙１５ｂが給紙トレイ２
における下端側からプラテン１７方向に給送される。次
いで、平坦周面が紙押え体３１における押え面３１ａ側
に来ると、給紙ローラ３０における平坦周面が積層され
た用紙１５ｂの表面に当接せず、且つ、紙押え体３１は
回転駆動軸３２の回転と無関係に遊嵌されているので、
押え面３１ａにて用紙１５ｂの表面を押圧した状態を保
持できるから、２重紙送りをすることがない。When a paper feed command is issued, the rotary drive shaft 32 makes one rotation clockwise in FIG. 4 to rotate the paper feed roller 30 so that its circumferential surface is a pressing surface 31a of the paper pressing body 31. Side, the paper 15 on which the circumferential surface is laminated
b is rotated while being pressed against the surface of the paper tray 2, so that only the uppermost sheet 15b of the stacked
Is fed in the direction of the platen 17 from the lower end side in FIG. Next, when the flat peripheral surface comes to the pressing surface 31a side of the paper pressing body 31, the flat peripheral surface of the paper feed roller 30 does not contact the surface of the stacked paper 15b, and the paper pressing body 31 is driven to rotate. Because it is loosely fitted regardless of the rotation of the shaft 32,
Since the state in which the surface of the sheet 15b is pressed by the pressing surface 31a can be maintained, there is no need to feed a double sheet.
【００１９】なお、給紙トレイ２は前記上ケース５にお
ける支持部３５に着脱自在に支持されており、また、上
ケース５の一側には操作パネル部３６が設けられてい
る。本発明においては、印字部１８は前記インクジェッ
ト式の他に、ドットインパクト方式や、サーマルヘッド
等の感熱式のもの等種々の形式を採用することができる
ことはいうまでもない。The paper feed tray 2 is removably supported by a support portion 35 of the upper case 5, and an operation panel portion 36 is provided on one side of the upper case 5. In the present invention, it goes without saying that the printing unit 18 can adopt various types such as a dot impact type and a thermal type such as a thermal head in addition to the ink jet type.
【００２０】[0020]
【発明の作用・効果】以上に説明したように、本発明の
画像形成装置における給紙・排紙装置は、画像形成装置
における本体に、給紙部とその上側に隣接して排紙部と
を設け、前記給紙部に対して着脱可能とした給紙トレイ
の上面には、前記排紙部から排紙される用紙を支持する
ための用紙受け板の広幅の基板部を、該用紙受け板の狭
幅の突出部が給紙トレイにおける給紙部への挿入方向と
反対側に突出した状態と、給紙部への挿入方向と同じ側
に突出して給紙トレイの一部を覆う状態とに、正逆両向
きにて嵌合できる係合手段を形成したものであるから、
給紙トレイに用紙を積層させて給紙部に用紙を送給する
と、画像形成後の用紙は前記給紙部に隣接した排紙部か
ら給紙トレイ上の用紙受け板にて支持されるので、未使
用の用紙と画像形成後の用紙とが混合しない。As described above, the paper feeding / discharging device in the image forming apparatus according to the present invention includes the paper feeding unit and the paper discharging unit adjacent to the upper side of the paper feeding unit in the main body of the image forming apparatus. the provided on the upper surface of the paper feed tray that is detachable from the sheet feeding section, the wide base plate portion of the sheet receiving plate for supporting the sheet ejected from the sheet ejection section receives the paper Narrow board
The protruding part of the width is
Protruding to the opposite side and in the same direction as the insertion direction into the paper feeder
And a state in which the engaging means can be fitted in both forward and reverse directions so as to protrude to cover a part of the sheet feeding tray .
When sheets are stacked on the paper feed tray and fed to the paper feed unit, the paper after image formation is supported by the paper receiving plate on the paper feed tray from the paper discharge unit adjacent to the paper feed unit. Unused paper and paper after image formation do not mix.
【００２１】そして、用紙受け板は、その広幅の基板部
を給紙トレイの上面の係合手段にてその厚み方向と平行
状に配置されるから、給紙及び排紙の作業中も給紙・排
紙装置全体が嵩張らない。しかも、この給紙・排紙装置
は画像形成装置本体に対して着脱自在に装着可能であ
り、且つ用紙受け板はその広幅の基板部の装着方向を正
逆両向きにて嵌合できるから、出荷時等の梱包に際して
も、嵩張ることがなくコンパクトにできるという効果を
奏するのである。The paper receiving plate has a wide substrate portion.
The from being arranged in the thickness direction and parallel shape in the engagement means of the upper surface of the paper feed tray, it is less bulky whole paper feeding-paper discharge apparatus even during paper feed and paper ejection operations. In addition, since the paper feeding / discharging device can be detachably mounted to the image forming apparatus main body, and the paper receiving plate can be fitted in both forward and reverse directions of mounting the wide substrate portion. When packing at the time of shipping, etc., there is an effect that it can be made compact without being bulky.
【図１】プリンタ装置の斜視図である。FIG. 1 is a perspective view of a printer device.
【図２】給紙トレイの分解斜視図である。FIG. 2 is an exploded perspective view of a paper feed tray.
【図３】給紙トレイをプリンタ装置における本体上面の
給紙部に装着する状態を示す斜視図である。FIG. 3 is a perspective view illustrating a state in which a sheet feeding tray is mounted on a sheet feeding unit on an upper surface of a main body of the printer.
【図４】要部側断面図である。FIG. 4 is a sectional side view of a main part.
【図５】給紙・排紙作業に際しての給紙トレイと用紙受
け板との装着方向を示す平面図である。FIG. 5 is a plan view showing a mounting direction of a sheet feeding tray and a sheet receiving plate during a sheet feeding / discharging operation.
【図６】梱包に際しての給紙トレイと用紙受け板との装
着方向を示す平面図である。FIG. 6 is a plan view showing a mounting direction of a sheet feeding tray and a sheet receiving plate at the time of packing.
【符号の説明】 １ プリンタ装置 ２ 給紙トレイ ３ 給紙部 １７ プラテン １８ 印字部 １９ａ 排紙口 ２０ 用紙受け板 ２０ａ 基板部 ２０ｂ 突出部 ２１ トレイ本体 ２１ｂ 側板部 ２３ 支持板 ２７，２７ 嵌合部 ２８，２８ ストッパー部 ３０ 給紙ローラ ３１ 紙押え体 ３５ 支持部 ３２ 回転駆動軸DESCRIPTION OF REFERENCE NUMERALS 1 printer device 2 paper feed tray 3 paper feed unit 17 platen 18 printing unit 19a paper discharge port 20 paper receiving plate 20a substrate unit 20b projecting unit 21 tray body 21b side plate unit 23 support plate 27, 27 fitting unit 28, 28 Stopper part 30 Paper feed roller 31 Paper press body 35 Support part 32 Rotation drive shaft
Claims (1)
その上側に隣接して排紙部とを設け、前記給紙部に対し
て着脱可能とした給紙トレイの上面には、前記排紙部か
ら排紙される用紙を支持するための用紙受け板の広幅の
基板部を、該用紙受け板の狭幅の突出部が給紙トレイに
おける給紙部への挿入方向と反対側に突出した状態と、
給紙部への挿入方向と同じ側に突出して給紙トレイの一
部を覆う状態とに、正逆両向きにて嵌合できる係合手段
を形成したことを特徴とする画像形成装置における給紙
・排紙装置。The body of claim 1 An image forming apparatus, adjacent to its upper sheet feeding unit is provided a paper discharge portion, the upper surface of the paper feed tray that is detachable from the sheet feeding section, the exhaust The wide substrate portion of the paper receiving plate for supporting the paper discharged from the paper portion is connected to the paper tray by the narrow projection of the paper receiving plate.
In the opposite direction to the direction of insertion into the paper feed section,
Protrude in the same direction as the paper
A sheet feeding / discharging device in the image forming apparatus, wherein an engaging means that can be fitted in both forward and reverse directions is formed in a state of covering the unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26092093A JP3281463B2 (en) | 1993-10-19 | 1993-10-19 | Paper feed / discharge device in image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26092093A JP3281463B2 (en) | 1993-10-19 | 1993-10-19 | Paper feed / discharge device in image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07112853A JPH07112853A (en) | 1995-05-02 |
| JP3281463B2 true JP3281463B2 (en) | 2002-05-13 |
Family
ID=17354600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26092093A Expired - Fee Related JP3281463B2 (en) | 1993-10-19 | 1993-10-19 | Paper feed / discharge device in image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3281463B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004216906A (en) * | 2004-02-20 | 2004-08-05 | Kyocera Mita Corp | Image forming equipment |
| JP4254791B2 (en) | 2006-02-21 | 2009-04-15 | ブラザー工業株式会社 | Paper feed tray |
| JP2006195489A (en) * | 2006-03-31 | 2006-07-27 | Kyocera Mita Corp | Image forming apparatus |
| JP2006182035A (en) * | 2006-03-31 | 2006-07-13 | Kyocera Mita Corp | Image forming device |
| JP2012121712A (en) * | 2010-12-10 | 2012-06-28 | Seiko Epson Corp | Recording device |
| JP5876655B2 (en) * | 2011-02-10 | 2016-03-02 | セイコーエプソン株式会社 | Recording device |
| US8528897B2 (en) * | 2011-02-10 | 2013-09-10 | Seiko Epson Corporation | Recording apparatus |
| CN102862394B (en) * | 2012-09-29 | 2015-01-14 | 深圳邦健生物医疗设备股份有限公司 | Printer structure and medical equipment |
| WO2023042350A1 (en) * | 2021-09-16 | 2023-03-23 | 株式会社Pfu | Medium conveyance device |
-
1993
- 1993-10-19 JP JP26092093A patent/JP3281463B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112853A (en) | 1995-05-02 |
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