JP2000313536A - Paper feeding device - Google Patents
Paper feeding deviceInfo
- Publication number
- JP2000313536A JP2000313536A JP11121717A JP12171799A JP2000313536A JP 2000313536 A JP2000313536 A JP 2000313536A JP 11121717 A JP11121717 A JP 11121717A JP 12171799 A JP12171799 A JP 12171799A JP 2000313536 A JP2000313536 A JP 2000313536A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- feeding
- roller
- paper sheet
- 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.)
- Granted
Links
- 230000032258 transport Effects 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035553 feeding performance Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明はプリンタ、ファク
シミリ、複写機等の画像形成装置に使用される給紙装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeder used for an image forming apparatus such as a printer, a facsimile, a copying machine, and the like.
【０００２】[0002]
【従来の技術】この種の従来の給紙装置を、本発明の実
施形態を示す図１を参照して説明する。すなわち、図１
に示すように１は給紙トレイ（給紙部）で、この給紙ト
レイ１内には用紙Ｓが積載されており、この用紙Ｓは上
昇機構（図示せず）によって給紙コロ２の下面側に向け
て押し当てられている。この給紙コロ２の対向位置には
分離パッド３が設けられ、この分離パッド３は加圧スプ
リング３ａの付勢力によって給紙コロ２側に押圧されて
いる。そして、制御部からの給紙信号により給紙コロ２
が回転すると、用紙Ｓの最上紙のみが分離パッド３によ
って分離され、ガイド板５に沿って一対の搬送ローラ４
にまで送られる。ここで、搬送ローラ４は給紙トレイ１
に対してほぼ垂直上方向の位置に配設され、ガイド板５
は湾曲状に形成されているため給紙コロ２によって給紙
された用紙Ｓは、用紙先端が搬送ローラ４に到達した時
には給紙コロ２との間でたるみが形成されることとな
る。その後、搬送ローラ４から搬送された用紙Ｓはレジ
ストローラ６にまで搬送される。このような給紙装置で
は用紙Ｓの「連送り」を防止するため給紙コロ２の駆動
は用紙Ｓの後端部が給紙コロ２を完全に通過（抜ける
前）する前に停止するように、その駆動が制御されてい
る。2. Description of the Related Art A conventional paper feeder of this type will be described with reference to FIG. 1 showing an embodiment of the present invention. That is, FIG.
As shown in FIG. 1, reference numeral 1 denotes a paper feed tray (paper feed unit), in which paper S is stacked, and the paper S is loaded on the lower surface of the paper feed roller 2 by a lifting mechanism (not shown). It is pressed toward the side. A separation pad 3 is provided at a position facing the paper feed roller 2, and the separation pad 3 is pressed toward the paper feed roller 2 by the urging force of a pressure spring 3a. Then, a paper feed roller 2 is supplied by a paper feed signal from the control unit.
Is rotated, only the uppermost sheet of the sheet S is separated by the separation pad 3, and a pair of transport rollers 4 along the guide plate 5.
Sent to Here, the transport roller 4 is the paper feed tray 1
The guide plate 5 is disposed substantially vertically upward with respect to
Is formed in a curved shape, the sheet S fed by the sheet feeding roller 2 forms a slack with the sheet feeding roller 2 when the leading end of the sheet reaches the transport roller 4. Thereafter, the paper S transported from the transport rollers 4 is transported to the registration rollers 6. In such a sheet feeding device, the driving of the sheet feeding roller 2 is stopped before the rear end of the sheet S completely passes through (before exiting) the sheet S in order to prevent “continuous feeding” of the sheet S. In addition, the drive is controlled.
【０００３】[0003]
【発明が解決しようとする課題】前述したように、従来
の給紙装置の場合には、用紙Ｓの「連送り」を防止する
ため給紙コロ２の駆動は用紙Ｓの後端部が給紙コロ２か
ら完全に通過する前に停止するように制御されている。
ところが、例えば各ローラ（給紙コロ２及び搬送ローラ
４）の搬送速度が等しい場合には、給紙コロ２の駆動が
停止した時点では分離パッド３の負荷により給紙コロ２
と搬送ローラ４との間で用紙Ｓが突っ張ることとなるた
め、この突っ張りにより大きな「突っ張り音」が発生し
てしまうという問題がある。また、このような用紙Ｓの
突っ張りが生じた場合には、そのショックにより画像乱
れ（ジター）が生じ、コピー品質を著しく低下させる要
因ともなる。このため従来では、図１に示すように、こ
の「突っ張り音」を消音するために用紙Ｓの搬送経路の
内側にスポンジ等の緩衝材７を配置したり付設のカバー
に吸音用の吸音材（図示せず）を取付けることにより、
「突っ張り音」の発生を防止する対策が行われている。
ところが、このように給紙装置に緩衝材７や吸音材を設
ける場合には部品点数が増加してしまい、これにより部
品コスト及び製造コストが嵩む原因となる。As described above, in the case of the conventional paper feeder, the feed roller 2 is driven by the rear end of the paper S in order to prevent "continuous feeding" of the paper S. It is controlled so as to stop before completely passing from the paper roller 2.
However, for example, when the transport speed of each roller (the feed roller 2 and the transport roller 4) is the same, when the drive of the feed roller 2 stops, the load of the separation pad 3
Since the paper S is stretched between the paper S and the transport roller 4, there is a problem that a loud “stretching sound” is generated by the stretch. Further, when such a stretch of the sheet S occurs, the shock causes image disorder (jitter), which is a factor that significantly lowers copy quality. For this reason, conventionally, as shown in FIG. 1, in order to mitigate this “stretching sound”, a cushioning material 7 such as a sponge is disposed inside the conveyance path of the paper S, or a sound absorbing material ( (Not shown)
Countermeasures have been taken to prevent the occurrence of "bumping noise".
However, in the case where the cushioning material 7 and the sound absorbing material are provided in the paper feeding device, the number of components increases, which causes an increase in component costs and manufacturing costs.
【０００４】そこでこの発明の目的は、前記のような従
来の給紙装置のもつ問題を解消し、用紙の「突っ張り」
及び「突っ張り音」を防止すると共に、ジター等の画像
乱れによるコピー品質の低下が図れる給紙装置を提供す
るにある。Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional paper feeder and to "stretch" the paper.
Another object of the present invention is to provide a sheet feeding device that prevents "squeezing noise" and can lower copy quality due to image disturbance such as jitter.
【０００５】[0005]
【課題を解決するための手段】この発明は、前記のよう
な目的を達成するために、請求項１に記載の発明は、給
紙トレイに積載された用紙を一枚ずつ送り出す給紙部の
用紙搬送速度をＶｆとし、給紙部の上方に位置し、給紙
部から送り出された用紙をほぼ垂直上方向に搬送する搬
送ローラ部の用紙速度をＶｔとしたときに、各用紙搬送
速度の関係はＶｆ＜Ｖｔに選定されると共に、搬送ロー
ラに用紙の先端部が到達してから、この用紙の後端部が
給紙部を通過するまでの間で、一定時間後には給紙部の
駆動が停止される制御が行われる事を特徴とするもので
ある。According to the present invention, in order to achieve the above object, the invention according to the first aspect is directed to a sheet feeding unit for feeding sheets stacked on a sheet feeding tray one by one. Assuming that the paper transport speed is Vf, and the paper speed of the transport roller unit that is located above the paper feed unit and transports the paper sent from the paper feed unit in a substantially vertical upward direction is Vt, The relationship is selected to be Vf <Vt, and from the time when the leading end of the sheet reaches the transport roller to the time when the trailing end of the sheet passes through the sheet feeding section, after a predetermined time, It is characterized in that control for stopping driving is performed.
【０００６】請求項２に記載の発明は、請求項１に記載
の発明において、搬送ローラの近傍に用紙検知手段を設
け、この用紙検知手段が搬送された用紙の先端部を検知
してから一定時間後に給紙部の駆動を停止する事を特徴
とするものである。According to a second aspect of the present invention, in the first aspect of the present invention, a sheet detecting means is provided in the vicinity of the conveying roller, and the sheet detecting means detects the leading end of the conveyed sheet and then keeps a certain amount of time. After a lapse of time, the driving of the sheet feeding unit is stopped.
【０００７】請求項３に記載の発明は、請求項１ないし
２に記載の発明において、搬送ローラに用紙の先端部が
到達してから、この用紙の後端部が給紙部を通過するま
での間で、一定時間後に給紙部の駆動を停止する制御に
おいて予め設定された時間を変更できる事を特徴とする
ことを特徴とするものである。According to a third aspect of the present invention, in the first or second aspect of the present invention, from when the leading end of the sheet reaches the transport roller to when the trailing end of the sheet passes through the sheet feeding section. In this case, a preset time can be changed in the control for stopping the driving of the sheet feeding unit after a predetermined time.
【０００８】[0008]
【発明の実施の形態】図１に示すこの発明の第１実施形
態において、本発明の特徴は用紙搬送速度に速度差を設
定することにより給紙部と搬送部との間で徐々に搬送中
の用紙の「たるみ」を吸収させ用紙の「突っ張り」を防
止することにある。すなわち、本第１実施形態では給紙
トレイ１に積載された用紙を一枚ずつ送り出す用紙搬送
速度をＶｆとし、搬送ローラ４の用紙搬送速度をＶｔと
したときに、これら用紙搬送速度の関係は「Ｖｆ＜Ｖ
ｔ」に選定されている。また、搬送ローラ４に用紙の先
端部が到達してから、この用紙の後端部が給紙コロ２を
通過するまでの間で、一定時間後にはこの給紙コロ２の
駆動が停止される制御が行われる。尚、ここで示す「搬
送速度」とは、給紙コロ２及び搬送ローラ４の実際の回
転速度ではなく、分離パッド３の負荷や用紙Ｓの摩擦抵
抗を予め考慮して算出した値である。このように搬送速
度を予め設定する事で、搬送ローラ４に用紙Ｓの先端部
が到達した後はその速度差によって、給紙コロ２と搬送
ローラ４との間で徐々に用紙のたるみが減少していくこ
ととなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment of the present invention shown in FIG. 1, the feature of the present invention is that a speed difference is set in the sheet conveying speed so that the sheet is gradually conveyed between the sheet feeding section and the conveying section. The purpose of the present invention is to absorb the "slack" of the paper and prevent the paper from "stretching". That is, in the first embodiment, when the paper transport speed at which the paper stacked on the paper feed tray 1 is sent out one sheet at a time is Vf, and the paper transport speed of the transport roller 4 is Vt, the relationship between these paper transport speeds is as follows. "Vf <V
t ”. In addition, after the leading end of the sheet reaches the transport roller 4 and until the trailing end of the sheet passes through the sheet feeding roller 2, the driving of the sheet feeding roller 2 is stopped after a predetermined time. Control is performed. The “transport speed” shown here is not the actual rotation speed of the paper feed roller 2 and the transport roller 4 but a value calculated in advance by considering the load on the separation pad 3 and the frictional resistance of the paper S. By setting the conveyance speed in advance in this way, after the leading end of the paper S reaches the conveyance roller 4, the slack of the paper is gradually reduced between the paper feed roller 2 and the conveyance roller 4 due to the speed difference. Will be done.
【０００９】以下、詳細を図２のタイミングチャートに
より説明する。このタイミングチャートにおいて、縦軸
は給紙コロ２と搬送ローラ４のＯＮ／ＯＦＦタイミング
及び用紙の「たるみ量」の変位量を示しており、ここで
は給紙コロ２の駆動時間（設定時間：Ｔ）を用紙の「た
るみ量」ができるだけ「０」に近づくように設定時間を
設定する。但し、図２のタイミングチャートに示すよう
に用紙長さＬが長い時は「たるみ量」をできるだけ
「０」になるまで、給紙コロ２を駆動させることができ
るが、用紙長さが短くなった場合には用紙の後端部が給
紙コロ２から離れる前に、この給紙コロ２の駆動を停止
させなければならない。これは、給紙トレイ１から連続
して次の用紙が送り出される「連送り」を防止するため
である。ここで、本発明は給紙部にフリクションパッド
等の分離パット３を用いた分離方式を適用しているが、
負荷が作用する分離方式であれば、ＦＲＲ（フリクショ
ンリタードローラ）分離、ＲＦ（ローラフリクション）
分離方式にも本発明を適用させることができる。The details will be described below with reference to the timing chart of FIG. In this timing chart, the vertical axis indicates the ON / OFF timing of the paper feed roller 2 and the transport roller 4 and the displacement amount of the "slack amount" of the paper. Here, the drive time of the paper feed roller 2 (set time: T ) Is set so that the “slack amount” of the paper approaches “0” as much as possible. However, as shown in the timing chart of FIG. 2, when the paper length L is long, the paper feed roller 2 can be driven until the “slack amount” becomes as small as possible to “0”, but the paper length becomes short. In this case, the drive of the paper feed roller 2 must be stopped before the rear end of the paper is separated from the paper feed roller 2. This is to prevent “continuous feeding” in which the next sheet is continuously fed from the sheet feeding tray 1. Here, the present invention employs a separation method using a separation pad 3 such as a friction pad in a paper feeding unit.
FRR (friction retard roller) separation, RF (roller friction)
The present invention can be applied to a separation system.
【００１０】また、図３は本発明の第２実施形態を示し
ている。この第２実施形態では、図３に示すように、用
紙の送り量を正確に制御するために搬送ローラ４の近傍
に用紙検知用の検知手段８を設けている。この検知手段
８の検知フィラー８ａは、用紙によってＯＮ／ＯＦＦさ
れ、反射型フォトセンサ、アクチェータ付フォトセンサ
等が採用される。このように検知手段８を設けることに
よって、図４のタイミングチャートに示すように用紙が
搬送ローラ４に到達した後、どれだけ給紙コロ２から用
紙を送ればよいかを設定時間Ｔ′により設定する事がで
きるので、給紙開始からの「送り量」を設定する精度を
より向上させる事ができ、用紙の連送りや送り不足を防
止することができる。FIG. 3 shows a second embodiment of the present invention. In the second embodiment, as shown in FIG. 3, a detection unit 8 for detecting a sheet is provided near the transport roller 4 in order to accurately control the amount of sheet feeding. The detection filler 8a of the detection means 8 is turned ON / OFF by a sheet, and a reflection type photo sensor, a photo sensor with an actuator, or the like is employed. By providing the detecting means 8 in this manner, as shown in the timing chart of FIG. 4, after the paper arrives at the transport roller 4, how much paper should be fed from the paper feed roller 2 is set by the set time T '. Therefore, the accuracy of setting the "feed amount" from the start of sheet feeding can be further improved, and continuous feeding or insufficient feeding of sheets can be prevented.
【００１１】さらに、給紙コロ２の送り量の設定を変更
するための方法としては、オペレータが画像形成装置の
操作部からキー入力で給紙コロ２からの送り量を変更す
る設定を行ったり、或は複写機等の画像形成装置が接続
された機器、例えばコンピュータ等を利用して前記項目
を変更する設定画面を設けてもよい（請求項３）。ま
た、用紙の通紙枚数に応じて前記項目を予め定められた
設定値に切り替わるようにすることも可能である。Further, as a method for changing the setting of the feed amount of the paper feed roller 2, an operator performs setting to change the feed amount from the paper feed roller 2 by key input from an operation unit of the image forming apparatus. Alternatively, a setting screen for changing the item may be provided using a device connected to the image forming apparatus such as a copying machine, for example, a computer. Further, it is also possible to switch the item to a predetermined set value in accordance with the number of passed sheets.
【００１２】[0012]
【発明の効果】この発明は、上記のようであって、請求
項１に記載の発明は、給紙トレイに積載された用紙を一
枚ずつ送り出す給紙部の用紙搬送速度をＶｆとし、給紙
部の上方に位置し、給紙部から送り出された用紙をほぼ
垂直上方向に搬送する搬送ローラ部の用紙速度をＶｔと
したときに、各用紙搬送速度の関係はＶｆ＜Ｖｔに選定
されると共に、搬送ローラに用紙の先端部が到達してか
ら、この用紙の後端部が給紙部を通過するまでの間で、
一定時間後に給紙部の駆動が停止されるので、用紙の
「突っ張り」及び「突っ張り音」を防止すると共に、ジ
ター等の画像乱れによるコピー品質の低下が図れるとい
う効果がある。The present invention is as described above. According to the first aspect of the present invention, the paper transport speed of the paper feeding unit for feeding out the paper stacked on the paper feeding tray one by one is set to Vf. Assuming that the paper speed of the transport roller unit that is located above the paper unit and transports the paper sent from the paper supply unit in a substantially vertical upward direction is Vt, the relationship between the respective paper transport speeds is selected as Vf <Vt. In addition, between the time when the leading edge of the paper reaches the transport roller and the time when the rear end of the paper passes through the paper feeding unit,
Since the driving of the paper feeding unit is stopped after a predetermined time, "stretching" and "stretching sound" of the paper are prevented, and the copy quality is reduced due to image disturbance such as jitter.
【００１３】請求項２に記載の発明は、搬送ローラの近
傍には用紙検知手段を設け、この用紙検知手段が搬送さ
れた用紙の先端部を検知してから一定時間後に給紙部の
駆動を停止するので、給紙部からの用紙の送り量を正確
に設定できるため、用紙の連送りや送り不足による給紙
性能の低下を防止できるという効果がある。According to a second aspect of the present invention, a sheet detecting means is provided in the vicinity of the conveying roller, and the sheet feeding section is driven after a predetermined time from the detection of the leading end of the conveyed sheet. Since the paper is stopped, the feeding amount of the paper from the paper feeding unit can be accurately set, and thus there is an effect that the paper feeding performance is prevented from being deteriorated due to continuous feeding or insufficient feeding of the paper.
【００１４】請求項３に記載の発明は、請求項１ないし
２記載の発明において、搬送ローラに用紙の先端部が到
達してから、この用紙の後端部が給紙部を通過するまで
の間で、一定時間後に給紙部の駆動を停止する制御にお
いて予め設定された時間は変更できるので、用紙の送り
量を変更する手段を設けて、用紙の種類による滑りやす
さや、各ローラによる摩耗等による送り量のばらつきを
吸収できるので、用紙の連送りや送り不足による給紙性
能の低下を防止できるという効果がある。According to a third aspect of the present invention, in the first and second aspects of the present invention, a period from when the leading end of the sheet reaches the transport roller to when the trailing end of the sheet passes through the sheet feeding section. Since a preset time can be changed in the control for stopping the driving of the paper feeding unit after a fixed time, means for changing the paper feed amount is provided to make the paper slippery depending on the type of the paper and the wear due to each roller. And the like, the variation in the feed amount due to the above-mentioned factors can be absorbed, and thus there is an effect that a decrease in the paper feeding performance due to continuous feeding of the paper or insufficient feeding can be prevented.
【図１】この発明の第１実施形態を示す概略縦断面図で
ある。FIG. 1 is a schematic longitudinal sectional view showing a first embodiment of the present invention.
【図２】同作用を説明するタイミングチャート図であ
る。FIG. 2 is a timing chart illustrating the same operation.
【図３】同第２実施形態を示す斜視図である。FIG. 3 is a perspective view showing the second embodiment.
【図４】同作用を説明するタイミングチャート図であ
る。FIG. 4 is a timing chart illustrating the same operation.
１ 給紙トレイ ２ 給紙コロ ３ 分離パッド ３ａ 加圧スプリング ４ 搬送ローラ ５ ガイド板 ６ レジストローラ ７ 緩衝材 ８ 検知手段 ８ａ 検知フィラー DESCRIPTION OF SYMBOLS 1 Paper feed tray 2 Paper feed roller 3 Separation pad 3a Pressure spring 4 Conveyance roller 5 Guide plate 6 Registration roller 7 Buffer material 8 Detecting means 8a Detecting filler
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H072 AA09 AA22 BA03 BA08 BA12 BA17 BA20 CA01 CB09 3F049 DA12 EA12 EA29 LA02 LA05 LA07 LB03 3F343 FA02 FB02 FB03 FB04 FC01 FC28 GA02 GB01 GC01 GD02 HA12 HB01 JA01 JD03 JD08 LA04 LA16 LC10 LC17 LD10 MA03 MA15 MA33 MB03 MB15 MC08 MC09 MC21 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H072 AA09 AA22 BA03 BA08 BA12 BA17 BA20 CA01 CB09 3F049 DA12 EA12 EA29 LA02 LA05 LA07 LB03 3F343 FA02 FB02 FB03 FB04 FC01 FC28 GA02 GB01 GC01 GD02 HA12 HB10 JA01 JD03 LC LD10 MA03 MA15 MA33 MB03 MB15 MC08 MC09 MC21
Claims (3)
送り出す給紙部の用紙搬送速度をＶｆとし、給紙部の上
方に位置し、給紙部から送り出された用紙をほぼ垂直上
方向に搬送する搬送ローラ部の用紙搬送速度をＶｔとし
たときに、各用紙搬送速度の関係はＶｆ＜Ｖｔに選定さ
れると共に、搬送ローラに用紙の先端部が到達してか
ら、この用紙の後端部が給紙部を通過するまでの間で、
一定時間後には給紙部の駆動が停止される制御が行われ
る事を特徴とする給紙装置。A paper feeding speed of a paper feeding unit for feeding out sheets stacked on a paper feeding tray one by one is set to Vf, and the paper feeding speed is set above the paper feeding unit, and the paper sent from the paper feeding unit is almost vertically upward. When the paper transport speed of the transport roller unit that transports the paper in the direction is Vt, the relationship between the respective paper transport speeds is selected to be Vf <Vt, and after the leading end of the paper reaches the transport roller, Until the rear end passes through the paper feed section,
A sheet feeding device characterized in that control for stopping driving of the sheet feeding unit is performed after a predetermined time.
け、この用紙検知手段が搬送された用紙の先端部を検知
してから一定時間後に給紙部の駆動を停止する事を特徴
とする給紙装置。2. A sheet feeding means, wherein a sheet detecting means is provided in the vicinity of a conveying roller, and the driving of the sheet feeding unit is stopped after a predetermined time from the detection of the leading end of the conveyed sheet. Paper equipment.
ら、この用紙の後端部が給紙部を通過するまでの間で、
一定時間後に給紙部の駆動を停止する制御における予め
設定される時間は変更可能である事を特徴とする請求項
１ないし２に記載の給紙装置。3. From the time when the leading end of the sheet reaches the transport roller to the time when the trailing end of the sheet passes through the sheet feeding section,
3. The sheet feeding device according to claim 1, wherein a preset time in the control for stopping the driving of the sheet feeding unit after a predetermined time can be changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12171799A JP3786541B2 (en) | 1999-04-28 | 1999-04-28 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12171799A JP3786541B2 (en) | 1999-04-28 | 1999-04-28 | Paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000313536A true JP2000313536A (en) | 2000-11-14 |
| JP3786541B2 JP3786541B2 (en) | 2006-06-14 |
Family
ID=14818147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12171799A Expired - Fee Related JP3786541B2 (en) | 1999-04-28 | 1999-04-28 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3786541B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008068970A (en) * | 2006-09-13 | 2008-03-27 | Seiko Epson Corp | Feeding device, recording device, liquid ejecting apparatus, and feeding method |
| JP2009083948A (en) * | 2007-09-27 | 2009-04-23 | Kyocera Mita Corp | Paper feeding mechanism, device and method for controlling paper feeding mechanism, and image forming device |
| JP2009269710A (en) * | 2008-05-08 | 2009-11-19 | Canon Inc | Sheet conveying device and image forming device |
| JP2013180841A (en) * | 2012-02-29 | 2013-09-12 | Canon Inc | Sheet feeding device and image forming apparatus |
| CN113307061A (en) * | 2020-02-26 | 2021-08-27 | 京瓷办公信息系统株式会社 | Document feeding device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11635722B2 (en) | 2017-10-20 | 2023-04-25 | Canon Kabushiki Kaisha | Driving force transmitting device, sheet feeding apparatus and image forming apparatus |
-
1999
- 1999-04-28 JP JP12171799A patent/JP3786541B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008068970A (en) * | 2006-09-13 | 2008-03-27 | Seiko Epson Corp | Feeding device, recording device, liquid ejecting apparatus, and feeding method |
| JP2009083948A (en) * | 2007-09-27 | 2009-04-23 | Kyocera Mita Corp | Paper feeding mechanism, device and method for controlling paper feeding mechanism, and image forming device |
| JP2009269710A (en) * | 2008-05-08 | 2009-11-19 | Canon Inc | Sheet conveying device and image forming device |
| JP2013180841A (en) * | 2012-02-29 | 2013-09-12 | Canon Inc | Sheet feeding device and image forming apparatus |
| CN113307061A (en) * | 2020-02-26 | 2021-08-27 | 京瓷办公信息系统株式会社 | Document feeding device |
| CN113307061B (en) * | 2020-02-26 | 2022-12-02 | 京瓷办公信息系统株式会社 | Document feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3786541B2 (en) | 2006-06-14 |
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