JP2592882B2 - Paper feeder - Google Patents
Paper feederInfo
- Publication number
- JP2592882B2 JP2592882B2 JP63015881A JP1588188A JP2592882B2 JP 2592882 B2 JP2592882 B2 JP 2592882B2 JP 63015881 A JP63015881 A JP 63015881A JP 1588188 A JP1588188 A JP 1588188A JP 2592882 B2 JP2592882 B2 JP 2592882B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- separation pad
- feed roller
- paper feed
- 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
- Paper Feeding For Electrophotography (AREA)
- Manual Feeding Of Sheets (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】 技術分野 本発明は、用紙トレイから１枚づつ用紙を繰り出すた
めの給紙ローラと、この給紙ローラに接触し用紙を分離
するための分離パッドとを有する給紙装置、特に自動給
紙装置に関する。Description: TECHNICAL FIELD The present invention relates to a paper feeder having a paper feed roller for feeding out paper one by one from a paper tray, and a separation pad for contacting the paper feed roller and separating the paper. In particular, the present invention relates to an automatic sheet feeder.
従来技術 プリンタ等に上記の形式の給紙装置を用いることは周
知である。このような給紙装置を用いたレーザプリンタ
を、第１図および第４図にて説明する。2. Description of the Related Art It is well known to use a paper feeding device of the above type in a printer or the like. A laser printer using such a sheet feeding device will be described with reference to FIGS.
第１図に示すレーザプリンタ１において、用紙トレイ
２上に積み重ねられた用紙束より、給紙ローラ３および
これに接触して配置された摩擦係数の高い分離パッド４
により１枚づつ用紙が繰り出される。かく繰り出された
用紙は、搬送ローラ５を経て転写部６に達する。転写部
６は感光体ドラム７の下側に配置され、同感光体ドラム
７の周囲には露光部８、現像部９、クリーニング部10、
帯電部11等が配置されている。転写部６にて感光体ドラ
ムよりトナー像を転写された用紙は、ついで定着部12に
てトナー像を定着し、排紙ローラ13を経て排出される。In the laser printer 1 shown in FIG. 1, a paper feed roller 3 and a separation pad 4 having a high coefficient of friction disposed in contact with the paper feed roller 3 from a paper bundle stacked on a paper tray 2.
Causes the paper to be fed one by one. The fed sheet reaches the transfer unit 6 via the transport roller 5. The transfer unit 6 is disposed below the photosensitive drum 7, and around the photosensitive drum 7, an exposing unit 8, a developing unit 9, a cleaning unit 10,
The charging section 11 and the like are arranged. The sheet on which the toner image has been transferred from the photoconductor drum by the transfer unit 6 is then fixed by the fixing unit 12 and is discharged via the discharge roller 13.
第４図にて、給紙トレイ２上に用紙束14を積層し、図
示していない用紙セットレバーを押し上げると、用紙束
14と分離パッド４が給紙ローラ３に圧接される。ついで
図示していない給紙スタートボタンを押すことにより、
用紙は給紙ローラ３との摩擦力により１枚づつ搬送ロー
ラ５に送り込まれる。２枚以上の用紙が給紙ローラ３と
分離パッド４との間に送られる場合、分離パッドに接す
る方の用紙は摩擦係数の大きい分離パッドとの摩擦力に
より停止せしめられ、給紙ローラに接する最上側用紙の
みが送られる。In FIG. 4, when the sheet bundle 14 is stacked on the sheet feed tray 2 and the sheet set lever (not shown) is pushed up, the sheet bundle
14 and the separation pad 4 are pressed against the paper feed roller 3. Then, by pressing the feed start button (not shown),
The paper is fed to the transport roller 5 one by one by the frictional force with the paper feed roller 3. When two or more sheets are fed between the paper feed roller 3 and the separation pad 4, the paper that comes into contact with the separation pad is stopped by the frictional force with the separation pad having a large friction coefficient, and comes into contact with the paper feed roller. Only the top sheet is sent.
このように、給紙ローラ３および分離パッド４によ
り、用紙トレイ２上の用紙束14から用紙を１枚づつ自動
的に給紙している途中において、用紙束14以外の各サイ
ズの用紙を給紙ローラ３と分離パッド４との間に挿入通
紙して、割込み印字を行うことがある。このような場
合、割込み印字を行う用紙が材質の異なる用紙、例えば
ポリエステルフイルム製OHP用紙、封筒等であるとき、
分離パッドの抵抗が大きく、通紙がスムースに行われ
ず、通紙不良の生ずる不都合がある。In this way, while the paper is automatically fed one by one from the paper stack 14 on the paper tray 2 by the paper feed roller 3 and the separation pad 4, the paper of each size other than the paper bundle 14 is supplied. In some cases, paper is inserted between the paper roller 3 and the separation pad 4 to perform interrupt printing. In such a case, when the paper on which the interrupt printing is performed is a paper of a different material, for example, an OHP paper made of polyester film, an envelope, or the like,
There is a problem that the resistance of the separation pad is large and the paper is not smoothly passed, resulting in poor paper passing.
目 的 本発明は、従来の給紙装置における上述の不都合をな
くすことを目的とする。Purpose The present invention aims to eliminate the above-mentioned disadvantages in the conventional paper feeding device.
構 成 上記の目的は、本発明により、シート状部材と把手と
を備えるセパレータを設け、前記シート状部材が上記分
離パッドよりは低い摩擦係数を有するステンレス板より
なり、前記把手を操作することにより前記シート状部材
が上記分離パッドと給紙ローラとの間に挿入離脱可能で
あることにより達成する。The object of the present invention is to provide, according to the present invention, a separator provided with a sheet-shaped member and a handle, wherein the sheet-shaped member is made of a stainless steel plate having a lower coefficient of friction than the separation pad, and the handle is operated. This is achieved by that the sheet-like member can be inserted and removed between the separation pad and the paper feed roller.
以下に、本発明の実施例を図により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図において、セパレータ15が用紙ト
レイ２上の用紙束14の上方に位置している。特に第３図
に示すように、セパレータ15はシート状部材16を備え、
この部材16はほヾ給紙ローラ３の幅を有し、かつ給紙ロ
ーラ３と分離パッド４との間に挿入離脱可能である。第
３図には、把手15′により手動的に挿入しかつ離脱させ
るセパレータが例示されている。部材16は、摩擦係数の
低い材料、例えばステンレス板よりなる。1 and 2, the separator 15 is located above the sheet bundle 14 on the sheet tray 2. In particular, as shown in FIG. 3, the separator 15 includes a sheet-like member 16,
This member 16 has approximately the width of the paper feed roller 3 and can be inserted and removed between the paper feed roller 3 and the separation pad 4. FIG. 3 illustrates a separator which is manually inserted into and removed from the handle 15 '. The member 16 is made of a material having a low friction coefficient, for example, a stainless plate.
既述のポリエステルフイルム製OHP用紙、封筒等を割
込み印字を行うときは、先づセパレータ15をその部材16
が給紙ローラ３と分離パッド４との間に位置するように
挿入する。ついで、割込み用紙17を給紙ローラ３とセパ
レータ15の部材16との間へ入れ、給紙ローラ３の駆動に
より先へ送る。この場合、部材16の摩擦係数が低いの
で、OHP用紙や封筒の確実な給紙が保証される。割込み
印字が終了すれば、セパレータ15を離脱させる。When performing interrupt printing on the above-described OHP paper or envelope made of polyester film, the separator 15 is first attached to the member 16.
Is inserted between the paper feed roller 3 and the separation pad 4. Next, the interrupting sheet 17 is put between the sheet feeding roller 3 and the member 16 of the separator 15 and is advanced by driving the sheet feeding roller 3. In this case, since the coefficient of friction of the member 16 is low, it is ensured that OHP sheets and envelopes are reliably fed. When the interrupt printing is completed, the separator 15 is removed.
セパレータ15を手動により給紙ローラと分離パッドと
の間に挿入する実施例について上述したが、セパレータ
15は用紙トレイ２に備え付けとすることも可能である。
更に、本発明によるセパレータは、割込み印字に限定さ
れるものではない。Although the embodiment in which the separator 15 is manually inserted between the paper feed roller and the separation pad has been described above, the separator 15
15 can also be provided on the paper tray 2.
Furthermore, the separator according to the invention is not limited to interrupt printing.
効 果 本発明により、給紙装置におけるポリエステルフィル
ム製OHP用紙、封筒等のスムースなかつ確実な給紙が保
証される。Effects According to the present invention, smooth and reliable paper feeding of OHP paper made of polyester film, envelopes, and the like in the paper feeding device is guaranteed.
第１図は本発明による給紙装置を備えたレーザプリンタ
の説明図、第２図は本発明の主要部を示す拡大図、第３
図は同じ主要部の斜視図、第４図は従来の給紙装置の主
要部を示す図である。 ２……用紙トレイ ３……給紙ローラ ４……分離パッド 14……用紙束 15……セパレータ 16……部材FIG. 1 is an explanatory view of a laser printer provided with a paper feeding device according to the present invention, FIG. 2 is an enlarged view showing a main part of the present invention, and FIG.
The figure is a perspective view of the same main part, and FIG. 4 is a view showing the main part of a conventional sheet feeding device. 2 Paper tray 3 Paper feed roller 4 Separation pad 14 Paper bundle 15 Separator 16 Member
Claims (1)
めの給紙ローラと、この給紙ローラに接触し用紙を分離
するための分離パッドとを有する給紙装置において、シ
ート状部材と把手とを備えるセパレータを設け、前記シ
ート状部材が上記分離パッドよりは低い摩擦係数を有す
るステンレス板よりなり、前記把手を操作することによ
り前記シート状部材が上記分離パッドと給紙ローラとの
間に挿入離脱可能であることを特徴とする給紙装置。1. A sheet feeding device having a sheet feeding roller for feeding out sheets one by one from a sheet tray, and a separation pad for contacting the sheet feeding roller and separating sheets, a sheet-like member, a handle, Is provided, the sheet-shaped member is made of a stainless steel plate having a lower friction coefficient than the separation pad, and the sheet-shaped member is inserted between the separation pad and the paper feed roller by operating the handle. A sheet feeding device which is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63015881A JP2592882B2 (en) | 1988-01-28 | 1988-01-28 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63015881A JP2592882B2 (en) | 1988-01-28 | 1988-01-28 | Paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192624A JPH01192624A (en) | 1989-08-02 |
| JP2592882B2 true JP2592882B2 (en) | 1997-03-19 |
Family
ID=11901132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63015881A Expired - Fee Related JP2592882B2 (en) | 1988-01-28 | 1988-01-28 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592882B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5577935B2 (en) * | 2010-08-18 | 2014-08-27 | セイコーエプソン株式会社 | printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259628U (en) * | 1985-10-03 | 1987-04-13 |
-
1988
- 1988-01-28 JP JP63015881A patent/JP2592882B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01192624A (en) | 1989-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |