JPH01133861A - Paper discharge device - Google Patents
Paper discharge deviceInfo
- Publication number
- JPH01133861A JPH01133861A JP29161587A JP29161587A JPH01133861A JP H01133861 A JPH01133861 A JP H01133861A JP 29161587 A JP29161587 A JP 29161587A JP 29161587 A JP29161587 A JP 29161587A JP H01133861 A JPH01133861 A JP H01133861A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- drive
- paper ejection
- paper discharge
- recording paper
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 14
- 108091008695 photoreceptors Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Forming Counted Batches (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
技！立夏
本発明は、プリンタ・複写機・ファクシミリ等の記録装
置に備える排紙装置に関する。詳しくは、記録後の用紙
を少なくとも２つの方向に振り分けて排紙する排紙装置
に関する。[Detailed description of the invention] Technique! TECHNICAL FIELD The present invention relates to a paper ejecting device included in a recording device such as a printer, a copying machine, or a facsimile. Specifically, the present invention relates to a paper ejecting device that distributes and ejects recorded paper in at least two directions.
災米技先
記録後の用紙を異なる方向に振り分けて排紙する排紙装
置に関して、従来は次のような方式を採用している。Conventionally, the following method has been adopted for a paper ejecting device that distributes and ejects sheets of paper after recording in different directions.
１）排紙口に多段の排紙トレイを設け、排紙口の切替え
、あるいは排紙トレイの移動により、用紙をその排紙ト
レイの各段に振り分ける。1) A multi-stage paper ejection tray is provided at the paper ejection port, and the paper is distributed to each stage of the paper ejection tray by switching the paper ejection port or moving the paper ejection tray.
２）方向が異なる複数の排紙路を設け、それら排紙路へ
用紙を振り分けて送り出す。2) A plurality of paper discharge paths with different directions are provided, and sheets are distributed and sent to these paper discharge paths.
３）排紙ユニット全体を移動させて、用紙を異なる方向
に振り分ける。3) Move the entire paper ejection unit to sort the paper in different directions.
しかし、それらの方式は、いずれも構造が複雑で高価と
なり、ジャムを発生し易い問題点があった。However, all of these systems have complicated structures, are expensive, and have the problem of being prone to jamming.
目 的
本発明の目的は、構造簡単、安価で、しかもジャムを発
生することなく、用紙を異なる方向に振り分けて排紙す
ることができる排紙装置を提供することにある。OBJECTIVES An object of the present invention is to provide a paper ejecting device that is simple in structure, inexpensive, and capable of distributing sheets of paper in different directions without causing jams.
碧ニー」叉
本発明は、上記目的を達成するために、排紙すべく用紙
の幅方向にて同心的に配置され、その用紙に送り力を与
える少なくとも２個の駆動側排紙ローラと、その駆動側
排紙ローラと対向配置され、用紙を駆動側排紙ローラに
押し付ける従動側排紙ローラと、片側の駆動側排紙ロー
ラの送り力と他側の駆動側排紙ローラの送り力とに差を
与える機構とで構成したことを特徴とする。In order to achieve the above object, the present invention includes at least two drive-side paper ejection rollers that are arranged concentrically in the width direction of the paper to eject the paper and apply feeding force to the paper; A driven paper ejection roller is placed opposite to the drive paper ejection roller and presses the paper against the drive paper ejection roller, and the feeding force of one drive side paper ejection roller and the feeding force of the other drive side paper ejection roller are It is characterized by being constructed with a mechanism that provides a difference between the two.
片側の駆動側排紙ローラの送り力を、他側の駆動側排紙
ローラの送り力よりも小さくすると、用紙は片側の駆動
側排紙ローラ側へ曲がって排紙される。また、反対に他
側の駆動側排紙ローラの送り力を、片側の駆動側排紙ロ
ーラの送り力よりも小さくすると、用紙は他側の駆動側
排紙ローラ側へ曲がって排紙される。さらに、両方の駆
動側排紙ローラの送り力を同じにすると、用紙はまっす
ぐに排紙される。When the feeding force of one drive-side paper ejection roller is made smaller than the feed force of the other drive-side paper ejection roller, the paper is bent and ejected toward the one drive-side paper ejection roller. On the other hand, if the feed force of the drive-side paper ejection roller on the other side is made smaller than the feed force of the drive-side paper ejection roller on one side, the paper will be bent and ejected toward the drive-side paper ejection roller on the other side. . Furthermore, if the feeding force of both drive-side paper ejection rollers is the same, the paper is ejected straight.
以下、図面を参照しつつ、本発明の実施例につき説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
第７図は本発明を適用するレーザプリンタの概略構成図
を示す。プリンタ本体（１０）に具えた給紙カセット（
１１）の記録紙（１００）は、給紙ローラ（１２）によ
り繰り出された後、一対のレジストローラ（１３）によ
ってタイミングをとられてドラム状の感光体（１４）へ
搬送される。感光体（１４）は時計方向に回転駆動され
、その際帯電チャージャ（１５）によって表面を帯電さ
れ、レーザ光学系（１６）からのレーザ光を照射されて
感光体（１４）上に静電潜像が形成される。この潜像は
、現像部（１７）を通るときトナーによって顕像化され
、その顕像は感光体（１４）へ搬送された記録紙（１０
０）に転写チャージャ（１８）により転写され、転写さ
れた記録紙（１００）上の像は定着部（１９）によって
定着される。そして、定着部（１９）を出た記録紙（１
００）は排紙路（２０）を通って排紙部（２１）へ搬送
される。また、転写後の感光体（１４）の表面はクリー
ニング部（２２）によりクリーニングされる。FIG. 7 shows a schematic configuration diagram of a laser printer to which the present invention is applied. The paper feed cassette (
The recording paper (100) of 11) is fed out by a paper feed roller (12) and then conveyed to a drum-shaped photoreceptor (14) at the right timing by a pair of registration rollers (13). The photoconductor (14) is driven to rotate clockwise, and at this time, the surface is charged by the charger (15) and is irradiated with laser light from the laser optical system (16) to create an electrostatic latent on the photoconductor (14). An image is formed. This latent image is visualized by toner when passing through the developing section (17), and the developed image is transferred to the recording paper (10) conveyed to the photoreceptor (14).
0) by a transfer charger (18), and the transferred image on the recording paper (100) is fixed by a fixing section (19). Then, the recording paper (1
00) is conveyed to the paper discharge section (21) through the paper discharge path (20). Further, the surface of the photoreceptor (14) after the transfer is cleaned by a cleaning section (22).
本発明による排紙装置は、そのようなレーザプリンタに
備えられて、記録紙（１００）を３つの方向に振り分け
て排紙するものである。The paper discharge device according to the present invention is installed in such a laser printer and discharges recording paper (100) by distributing it in three directions.
第１図および第２図はその排紙装置の構成を示している
。図において、この排紙装置は、排紙すべく記録紙（１
００）の幅方向にて同心的に配置され、その記録紙（１
００）に送り力を与える２個の駆動側排紙ローラ（２３
Ａ）・（２３Ｂ）と、その駆動側排紙ローラ（２３Ａ）
・（２３Ｂ）と対向配置され、記録紙（１００）をそれ
らローラに押し付ける従動側排紙ローラ（２４Ａ）・（
２４Ｂ）と、一方の駆動側排紙ローラ（２３Ａ）の送り
力と他方の駆動側排紙ローラ（２３Ｂ）の送り力とに差
を与える機構（２５）とで構成される。FIGS. 1 and 2 show the structure of the paper ejecting device. In the figure, this paper ejecting device is configured to eject recording paper (1
00) are arranged concentrically in the width direction of the recording paper (1
Two drive-side paper ejection rollers (23
A) (23B) and its drive side paper ejection roller (23A)
- A driven paper ejection roller (24A) which is arranged opposite to (23B) and presses the recording paper (100) against these rollers.
24B), and a mechanism (25) that provides a difference between the feeding force of one driving-side sheet discharging roller (23A) and the feeding force of the other driving-side sheet discharging roller (23B).
前記駆動側排紙ローラ（２３Ａ）・（２３Ｂ）は、共通
の回転軸（２６）上に取付けられる。その回転軸（２６
）４マモータにより減速歯車機構（いずれも図示せず）
を介して回転する。The driving side paper ejection rollers (23A) and (23B) are mounted on a common rotation shaft (26). Its rotation axis (26
) Reduction gear mechanism with 4 motors (none of them shown)
Rotate through.
前記動従動側排紙ローラ（２４Ａ）・（２４Ｂ）は、駆
動側排紙ローラ（２３Ａ）・（２３Ｂ）の上方に配置さ
れるとともに、それぞれブラケット（２７Ａ）・（２７
Ｂ）に回転自在に支持される。The driven-side paper ejection rollers (24A) and (24B) are arranged above the drive-side paper ejection rollers (23A) and (23B), and the brackets (27A) and (27B) are arranged above the drive-side paper ejection rollers (23A) and (23B), respectively.
B) is rotatably supported.
前記機構（２５）は、先端にそれぞれブラケット（２７
Ａ）・（２７Ｂ）を連設し、従動側排紙ローラ（２４Ａ
）・（２４Ｂ）に駆動側排紙ローラ（２３Ａ）・（２３
Ｂ）への一定の押付力を与える磁性の板ばね（２８Ａ）
・（２８Ｂ）と、その板ばね（２８Ａ）・（２８Ｂ）の
上面に接近して配設され、鎖板ばね（２８Ａ）・（２８
Ｂ）を吸着することにより従動側排紙ローラ（２４Ａ）
・（２４Ｂ）の押付力を弱める電磁石（２９Ａ）・（２
９Ｂ）とで構成される。前記板ばね（２８Ａ）・（２８
Ｂ）の基端部は、プリンタ本体の上カバー （ＩＯＡ）
に同定される。また、前記電磁石（２９Ａ）・（２９Ｂ
）は、ホルダー（３０）を介して上カバー（ＩＯＡ）に
保持されるとともに、各々独立して励磁・消磁を行える
。図中（３１）は電磁石への給電線を示す。Each of the mechanisms (25) has a bracket (27) at its tip.
A) and (27B) are installed in series, and the driven side paper ejection roller (24A
) and (24B), drive side paper ejection roller (23A) and (23
B) Magnetic leaf spring (28A) that provides a constant pressing force
- Disposed close to the upper surface of (28B) and its leaf springs (28A) and (28B), and chain leaf springs (28A) and (28
By adsorbing B), the driven side paper ejection roller (24A)
・Electromagnet (29A) that weakens the pressing force of (24B)・(2
9B). Said leaf spring (28A) (28
The base end of B) is the top cover of the printer body (IOA)
is identified. In addition, the electromagnets (29A) and (29B
) are held by the upper cover (IOA) via a holder (30), and can be magnetized and demagnetized independently. In the figure, (31) indicates a power supply line to the electromagnet.
次に上記排紙装置の作用について説明する。電磁石（２
９Ａ）・（２９Ｂ）を消磁の状態で駆動側排紙ローラ（
２３Ａ）・（２３Ｂ）を回転させると、記録紙（１００
）は従動側排紙ローラ（２４Ａ）・（２４Ｂ）により一
定の押付力をもって駆動側排紙ローラ（２３Ａ）・（２
３Ｂ）に押し付けられる。これにより、第３図に示すよ
うに、一方の駆動側排紙ローラ（２３Ａ）が記録紙（１
００）に与える送り力（Ｆｌ）と、他方の駆動側排紙ロ
ーラ（２３Ｂ）が記録紙（１００）に与える送り力（Ｆ
２）とが等しくなるので、該記録紙（１００）は矢印（
イ）方向に排紙される。また、他方の電磁石（２９Ｂ）
を励磁して板ばね（２８Ｂ）を吸着し、従動側排紙ロー
ラ（２４Ｂ）の押付力を弱めると、記録紙（１００）と
他方の駆動側排紙ローラ（２３Ｂ）との摩擦抵抗が、一
方の駆動側排紙ローラ（２３Ａ）と記録紙（１００）と
の摩擦抵抗よりも小さくなる。これにより、第４図に示
ように、他方の駆動側排紙ローラ（２３Ｂ）が記録紙（
１００）に与える送り力（Ｆ２）は、一方の駆動側排紙
ローラ（２３Ａ）が、記録紙（１００）に与える送り力
（Ｆｌ）よりも小さくなるので、該記録紙（１００）は
矢印（ロ）方向に排紙される。また、反対に一方の電磁
石（２９Ａ）を励磁して板ばね（２８Ａ）を吸着し、従
動側排紙ローラ（２４Ａ）の押付力を弱めると、第５図
に示すように、一方の駆動側排紙ローラ（２３Ａ）が記
録紙（１００）に与える送り力（Ｆｌ）は、他方の駆動
側排紙ローラ（２３Ｂ）が記録紙（１００）に与える送
り力（Ｆ２）よりも小さくなるので、該記録紙（１００
）は矢印（ハ）方向に排紙される。なお、上記実施例に
おいて、図示は省略したが、排紙トレイとして、たとえ
ば扇形をなすとともに、３つに区分した排紙受けを有す
るものが採用される。Next, the operation of the above paper ejecting device will be explained. Electromagnet (2
9A) and (29B) are demagnetized and the drive side paper ejection roller (
When rotating 23A) and (23B), the recording paper (100
) is driven by the driven side ejecting rollers (24A) and (24B) with a constant pressing force.
3B). As a result, as shown in FIG.
The feeding force (Fl) applied to the recording paper (100) by the other drive-side paper ejection roller (23B)
2) are equal, so the recording paper (100) is
The paper is ejected in the direction a). Also, the other electromagnet (29B)
When the leaf spring (28B) is energized to attract the leaf spring (28B) and the pressing force of the driven side paper ejection roller (24B) is weakened, the frictional resistance between the recording paper (100) and the other driving side paper ejection roller (23B) is This is smaller than the frictional resistance between one of the drive side paper ejection rollers (23A) and the recording paper (100). As a result, as shown in FIG. 4, the other drive-side paper ejection roller (23B)
The feeding force (F2) applied to the recording paper (100) is smaller than the feeding force (Fl) applied to the recording paper (100) by one of the drive-side paper ejection rollers (23A), so the recording paper (100) moves in the direction of the arrow ( Paper is ejected in the b) direction. On the other hand, if one electromagnet (29A) is excited to attract the leaf spring (28A) and the pressing force of the driven side paper ejection roller (24A) is weakened, as shown in FIG. The feeding force (Fl) that the paper ejection roller (23A) applies to the recording paper (100) is smaller than the feeding force (F2) that the other drive-side paper ejection roller (23B) applies to the recording paper (100). The recording paper (100
) is ejected in the direction of arrow (c). Although not shown in the drawings, in the embodiment described above, the paper discharge tray is, for example, fan-shaped and has a paper discharge tray divided into three sections.
以上の如く、本実施例によれば、駆動側排紙ローラによ
る記録紙の送り力を制御して、その記録紙を３つの方向
に振り分けて排紙するようにしたから、従来の排紙装置
に比べて構造を簡単にできるとともに、コスト低減を図
れ、しかもジャムも発生しにくくなる。As described above, according to this embodiment, the feeding force of the recording paper by the drive-side paper ejection roller is controlled, and the recording paper is distributed and ejected in three directions, which makes it possible to avoid the conventional paper ejection device. The structure can be simplified and costs can be reduced, and jams are less likely to occur.
なお、上記実施例においては、従動側排紙ローラ（２４
Ａ）・（２４Ｂ）の駆動側排紙ローラ（２３Ａ）・（２
３Ｂ）への押付力を制御することにより、記録紙（１０
０）の送り力を変えるようにしたが、駆動側排紙ローラ
（２３Ａ）・（２３Ｂ）の回転速度を制御して、記録紙
の送り力を変えるようにすることも可能である。Note that in the above embodiment, the driven side paper ejection roller (24
A)/(24B) drive side paper ejection roller (23A)/(2
By controlling the pressing force on the recording paper (10
Although the feeding force of 0) is changed, it is also possible to change the feeding force of the recording paper by controlling the rotational speed of the driving side paper ejection rollers (23A) and (23B).
第６図はその一具体例を示し、一方の駆動側排紙ローラ
（２３Ａ）の回転軸（３１）と、他方の駆動側排紙ロー
ラ（２３Ｂ）の回転軸（３２）とは分離されているとと
もに、クラッチ軸（３３）と駆動軸（３４）とが並設さ
れている。その駆動軸（３４）は、ギヤ（Ｇ１）・（Ｇ
２）を介して図示しないモータにより回転する。また、
駆動軸（３４）は、ステップモータ（３５）の回転によ
り、ウオームギヤ（３６）およびラック（３７）を介し
て矢印方向にスライド可能となっている。前記クラッチ
軸（３３）は、電磁クラッチ（３８）を有するとともに
、ギヤ（Ｇ３）・（Ｇ４）および前記ギヤ（Ｇ２）を介
して駆動軸（３４）に連結されている。前記回転軸（３
１）は、ギヤ（Ｇ５）および（Ｇ６）を介してクラッチ
軸（３３）に連結され、前記回転軸（３２）は、ギヤ（
Ｇ５）および（Ｇ６）を介してクラッチ軸（３３）に連
結されている。また、回転軸（３１）には変速ギヤ（Ｇ
７）・（Ｇ８）が固設され、駆動軸（３４）にはそれら
と噛合う変速ギヤ（Ｇ９）・（ＧＩＯ）が固設されてい
る。また、回転軸（３２）には変速ギヤ（Ｇ７）・（Ｇ
８）が固設され、駆動軸（３４）にはそれらと噛合う変
速ギヤ（Ｇ９）・（ＧＩＯ）が固設されている。そして
、それら変速ギヤの歯数は、Ｇ９＜Ｇ７．ＧＩＯ＞Ｇ８
の関係にある。FIG. 6 shows a specific example of this, in which the rotation shaft (31) of one drive-side paper ejection roller (23A) and the rotation shaft (32) of the other drive-side paper ejection roller (23B) are separated. In addition, a clutch shaft (33) and a drive shaft (34) are arranged in parallel. The drive shaft (34) has gears (G1) and (G
2) is rotated by a motor (not shown). Also,
The drive shaft (34) is slidable in the direction of the arrow through the worm gear (36) and rack (37) by rotation of the step motor (35). The clutch shaft (33) has an electromagnetic clutch (38) and is connected to the drive shaft (34) via gears (G3) and (G4) and the gear (G2). The rotating shaft (3
1) is connected to a clutch shaft (33) via gears (G5) and (G6), and the rotating shaft (32) is connected to a clutch shaft (33) via gears (G5) and (G6).
G5) and (G6) are connected to the clutch shaft (33). In addition, the rotating shaft (31) is equipped with a speed change gear (G
7) and (G8) are fixedly installed, and transmission gears (G9) and (GIO) that mesh with them are fixedly installed on the drive shaft (34). In addition, the rotating shaft (32) is equipped with transmission gears (G7) and (G7).
8) are fixedly installed, and transmission gears (G9) and (GIO) that mesh with these are fixedly installed on the drive shaft (34). The number of teeth of these transmission gears is G9<G7. GIO>G8
There is a relationship between
次に上記実施例の作用について説明する。電磁クラッチ
（３８）をＯｆｆにした状態において、図示のように駆
動軸（３４）を右方向にスライドさせると、回転軸（３
１）の変速ギヤ（Ｇ７）と駆動軸（３４）の変速ギヤ（
Ｇ９）とが噛合う一方、回転軸（３２）の変速ギヤ（Ｇ
８）と駆動軸（３４）の変速ギヤ（Ｇ １０）とが噛合
う。これにより１回転軸（３１）は減速され、かつ回転
軸（３２）は増速される、すなわち一方の駆動側排紙ロ
ーラ（２３Ａ）が遅く回転し、他方の駆動側排紙ローラ
（２３Ｂ）が速く回転するから、第４図に示すように、
記録紙（１００）は矢印（ロ）方向に排紙される。また
、上記と同様に電磁クラッチ（３８）をＯｆｆにした状
態において、駆動軸（３４）を左方向にスライドさせる
と、回転軸（３１）の変速ギヤ（Ｇ８）と駆動軸（３４
）の変速ギヤ（Ｇ １０）とが噛合う一方、回転軸（３
２）の変速ギヤ（Ｇ７）と駆動軸（３４）の変速ギヤ（
Ｇ９）とが噛合う。これにより、一方の駆動側排紙ロー
ラ（２３Ａ）が速く回転し、他方の駆動側排紙ローラ（
２３Ｂ）が遅く回転するから、第５図に示すように、記
録紙（１００）は矢印（ハ）方向に排紙される。さらに
、駆動軸（３４）を中立位置に戻して変速ギヤ同志の噛
合いを解除した状態において、電磁クラッチ（３８）を
ＯＮにすると、駆動軸（３４）の回転がギヤ（Ｇ３）・
（Ｇ４）、クラッチ軸（３３）およびギヤ（Ｇ６）・（
Ｇ５）を介して回転軸（３１）および（３２）に同時に
伝達される。これにより、一方の駆動側排紙ローラ（２
３Ａ）と他方の駆動側排紙゛ローラ（２３Ｂ）とが同速
で回転するから、第３図に示すように、記録紙（１００
）は矢印（イ）方向に排紙される。Next, the operation of the above embodiment will be explained. When the electromagnetic clutch (38) is turned off and the drive shaft (34) is slid to the right as shown, the rotation shaft (34)
1) transmission gear (G7) and the drive shaft (34) transmission gear (
G9) meshes with the transmission gear (G9), while the transmission gear (G9) of the rotating shaft (32)
8) and the transmission gear (G10) of the drive shaft (34) mesh with each other. As a result, the rotation axis (31) is decelerated and the rotation axis (32) is accelerated, that is, one drive-side paper ejection roller (23A) rotates slowly, and the other drive-side paper ejection roller (23B) rotates slowly. rotates quickly, so as shown in Figure 4,
The recording paper (100) is discharged in the direction of the arrow (b). Similarly to the above, when the drive shaft (34) is slid to the left with the electromagnetic clutch (38) turned off, the transmission gear (G8) of the rotation shaft (31) and the drive shaft (34)
) meshes with the transmission gear (G10), while the rotating shaft (3
2) transmission gear (G7) and the drive shaft (34) transmission gear (
G9) meshes with each other. As a result, one drive-side paper ejection roller (23A) rotates quickly, and the other drive-side paper ejection roller (23A) rotates quickly.
23B) rotates slowly, the recording paper (100) is ejected in the direction of the arrow (c) as shown in FIG. Furthermore, when the electromagnetic clutch (38) is turned on with the drive shaft (34) returned to the neutral position and the transmission gears disengaged, the rotation of the drive shaft (34) is caused by the gear (G3).
(G4), clutch shaft (33) and gear (G6) (
G5) to the rotating shafts (31) and (32) simultaneously. As a result, one of the drive side paper ejection rollers (2
3A) and the other drive-side paper ejection roller (23B) rotate at the same speed, so that the recording paper (100
) is ejected in the direction of arrow (a).
効 果
本発明によれば、駆動側排紙ローラによる記録紙の送り
力を制御して、その記録紙を複数の方向に振り分けて排
紙するようにしたから、従来の排紙装置に比べて構造を
簡単にでき、かつコスト低減を図れ、しかもジャムも発
生しなくなる。Effects According to the present invention, the feeding force of the recording paper by the drive-side paper ejection roller is controlled, and the recording paper is distributed and ejected in a plurality of directions. The structure can be simplified, costs can be reduced, and jams will not occur.
第１図は本発明の排紙装置の一実施例を示す斜視図、第
２図はその側面図、第３図ないし第５図は排紙の作用図
、第６図は本発明の他の実施例を示す構成図、第７図は
本発明を適用するレーザプリンタの概略構成図である。FIG. 1 is a perspective view showing one embodiment of the paper ejecting device of the present invention, FIG. 2 is a side view thereof, FIGS. 3 to 5 are operational views of the paper ejecting device, and FIG. FIG. 7 is a schematic diagram of a laser printer to which the present invention is applied.
Claims (1)
紙に送り力を与える少なくとも２個の駆動側排紙ローラ
と、その駆動側排紙ローラと対向配置され、用紙を駆動
側排紙ローラに押し付ける従動側排紙ローラと、片側の
駆動側排紙ローラの送り力と他側の駆動側排紙ローラの
送り力とに差を与える機構とで構成したことを特徴とす
る排紙装置。At least two drive-side paper ejection rollers are arranged concentrically in the width direction of the paper to be ejected and apply feeding force to the paper; Paper ejection characterized by comprising a driven paper ejection roller that presses against the paper roller, and a mechanism that provides a difference between the feeding force of one driving side paper ejection roller and the feeding force of the other driving side paper ejection roller. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29161587A JPH01133861A (en) | 1987-11-18 | 1987-11-18 | Paper discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29161587A JPH01133861A (en) | 1987-11-18 | 1987-11-18 | Paper discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01133861A true JPH01133861A (en) | 1989-05-25 |
Family
ID=17771245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29161587A Pending JPH01133861A (en) | 1987-11-18 | 1987-11-18 | Paper discharge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01133861A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172273A (en) * | 1989-11-30 | 1991-07-25 | Mita Ind Co Ltd | Paper discharge device |
| US5489092A (en) * | 1992-09-09 | 1996-02-06 | Seiko Epson Corporation | Recording paper sorting and discharging device |
-
1987
- 1987-11-18 JP JP29161587A patent/JPH01133861A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172273A (en) * | 1989-11-30 | 1991-07-25 | Mita Ind Co Ltd | Paper discharge device |
| US5489092A (en) * | 1992-09-09 | 1996-02-06 | Seiko Epson Corporation | Recording paper sorting and discharging device |
| US5527030A (en) * | 1992-09-09 | 1996-06-18 | Seiko Epson Corporation | Recording paper sorting and discharging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4787616A (en) | Sheet stacking device and image forming apparatus provided with same | |
| US4176945A (en) | Sheet feeding apparatus for use with copier/duplicators or the like | |
| JPS5821270A (en) | Recorder | |
| US4967239A (en) | Printer having a reversible motor and separate transmissions systems | |
| EP0399565B1 (en) | Printer | |
| JPS593378B2 (en) | Collator operation control device | |
| EP0592197A2 (en) | Image-transferring device | |
| US4901117A (en) | Sheet feeder for second pass copy substrate | |
| EP0622707B1 (en) | Transfer assist apparatus | |
| JPH0753474B2 (en) | Stapler positioning device | |
| US6062557A (en) | Image forming apparatus having a non-exciting actuate type electromagnetic clutch | |
| JPH01133861A (en) | Paper discharge device | |
| GB1591978A (en) | Sheet collator | |
| JP2003155130A (en) | Image forming device | |
| US5331389A (en) | Image forming apparatus with sheet discharging device | |
| JP2009234771A (en) | Paper feeder and image forming apparatus | |
| JP4203785B2 (en) | Image forming apparatus | |
| JPH05270671A (en) | Image forming device | |
| JPH06278895A (en) | Image forming device | |
| JP4429555B2 (en) | Image forming apparatus | |
| JPH0466028B2 (en) | ||
| JP2799611B2 (en) | Recording paper transport device for image recording device | |
| KR101094925B1 (en) | image forming apparatus for duplex printing | |
| JPH1152652A (en) | High speed image recording device | |
| JP3521378B2 (en) | Duplex copying machine |