JPS61273445A - Method of controlling paper feed device provided with separating means - Google Patents

Method of controlling paper feed device provided with separating means

Info

Publication number
JPS61273445A
JPS61273445A JP11577085A JP11577085A JPS61273445A JP S61273445 A JPS61273445 A JP S61273445A JP 11577085 A JP11577085 A JP 11577085A JP 11577085 A JP11577085 A JP 11577085A JP S61273445 A JPS61273445 A JP S61273445A
Authority
JP
Japan
Prior art keywords
feeding
roller
speed
sheet material
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.)
Granted
Application number
JP11577085A
Other languages
Japanese (ja)
Other versions
JPH07115764B2 (en
Inventor
Noboru Mizunuma
水沼 昇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP60115770A priority Critical patent/JPH07115764B2/en
Publication of JPS61273445A publication Critical patent/JPS61273445A/en
Publication of JPH07115764B2 publication Critical patent/JPH07115764B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Delivering By Means Of Belts And Rollers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE:To prevent a sheet from skewing due to the tension of the sheet, etc. downstream of a paper feed device, by setting the actual feed speed of sheets to a value which is substantially equal to or slightly higher than the transfer of the sheet. CONSTITUTION:The peripheral speed V2 of a paper feed roller 2 is previously set to be higher than the peripheral speed V5 of a feed roller 5, and the peripheral speed V3 of a separating roller 3 is determined in accordance with the durability of a separating means with the speed V3 being selected to be comparatively lower that the speed V5. With the above-mentioned setting, the conveying speed of transfer paper sheets after feed from a paper feed device, is recovered to a value which is coincident with or near to the peripheral speed V5 of the feed roller 5. Actually, since a resistance other than a returning force by the separating roller and a slip occur due to the kinds of paper sheets, etc. the peripheral speed V2 on the feed side is determined by experiments.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は分離手段を備える給送装置の制御方法、詳細に
は例えば、複写機、印刷機等の画像形成装置においてシ
ート材の給送方向とは逆方向の戻し力あるいはブレーキ
力を加える分離手段とシート材を給送する方向に回転す
る給送手段を有する給送装置の制御方法に関する。
Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for controlling a feeding device equipped with a separating means, and more specifically, for example, for controlling a feeding direction of a sheet material in an image forming apparatus such as a copying machine or a printing machine. The present invention relates to a method for controlling a feeding device having a separating means that applies a return force or a braking force in the opposite direction to the feeding means and a feeding means that rotates in the direction in which the sheet material is fed.

〔従来の技術〕[Conventional technology]

第3図〜第5図に従来例を示す。いずれも、転写紙(シ
ート材)の重送を防止する分離手段を備える給送装置と
して公知の構成である。第3図〜第5図の構成において
、1は給送装置で、給送ローラ2、分離ローラ3又は分
離板4から構成される。5は分離された一枚のシート材
を更に搬送する搬送ローラである。給送ローラ2はシー
ト材の給送方向に回転し、分離ローラ3けシート材の給
送方向とは逆方向に回転する。
Conventional examples are shown in FIGS. 3 to 5. Both have a known configuration as a feeding device including a separating means for preventing double feeding of transfer paper (sheet material). In the configurations shown in FIGS. 3 to 5, reference numeral 1 denotes a feeding device, which is composed of a feeding roller 2, a separating roller 3, or a separating plate 4. 5 is a conveyance roller that further conveys the separated sheet material. The feeding roller 2 rotates in the sheet material feeding direction, and the separation roller 3 rotates in the opposite direction to the sheet material feeding direction.

従って、重送シート材の束の上側のシート材は分離ロー
ラ3又は分離板4の戻し力によって最下側のシート材か
ら分離され、一枚のシート材が給送ローラ2によって給
送される。
Therefore, the upper sheet material in the bundle of multi-fed sheet materials is separated from the lowermost sheet material by the return force of the separating roller 3 or the separating plate 4, and one sheet material is fed by the feeding roller 2. .

ここで、第3図の給送ローラ2は後述(第1図(B))
のように、くし歯状をしておシ、分離ロー23は常時右
回転している。
Here, the feeding roller 2 in FIG. 3 will be described later (FIG. 1 (B)).
As shown in the figure, the separation row 23 has a comb tooth shape and is constantly rotating clockwise.

また、第4図の分離ローラ3は、トルクリミッタ一方向
回転クラッチ等のスリップ手段を介して右方向の回転力
が付勢されているが、この回転力は給送ローラ2の右方
向の回転力よりも弱いので、通常は分離ローラ3は給送
ローラ2の回転に連動して左方向に回転している。従っ
て、シート材を一枚だけ送る時には余分な戻し力やブレ
ーキ力が作用しないので有利であるが、この場合にはス
リップ手段の耐久性、信頼性に大きく依存せざるを得な
い。
Furthermore, the separation roller 3 shown in FIG. Since the separation roller 3 is weaker than the force, the separation roller 3 normally rotates to the left in conjunction with the rotation of the feeding roller 2. Therefore, when feeding only one sheet material, it is advantageous because no extra return force or braking force is applied, but in this case, it is necessary to rely largely on the durability and reliability of the slip means.

一方、重送が発生した場合には、給送ローラ2の回転力
が分離ローラ3に伝達されないので、分離ロー23は自
身の回転力によって右回転し、上側の重送シート材は押
し戻されて、下側のシート材のみが給送ロー22によっ
て給送される。
On the other hand, when double feeding occurs, the rotational force of the feeding roller 2 is not transmitted to the separation roller 3, so the separation roller 23 rotates clockwise by its own rotational force, and the upper double-feeding sheet material is pushed back. , only the lower sheet material is fed by the feeding row 22.

また、第5図のシート材給送装置は、分離ローラに代っ
て固定の分離板を配設したものであり、この分離板4の
ブレーキ力によって下側のシート材に分離力を与えてシ
ート材を分離するものである。
Furthermore, the sheet material feeding device shown in FIG. 5 is provided with a fixed separation plate instead of the separation roller, and the braking force of this separation plate 4 applies separation force to the lower sheet material. It separates sheet materials.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかるに、以上の様な分離力として戻し力あるいはブレ
ーキ力などを利用するタイプの重送防止手段を備える給
送装置では、この分離力がシート材を給送させる力(給
送ローラ2によって生ずる力)と打ち消しあい給送力不
足となって、斜行やジャムなどの紙送りトラブルにつな
がる。特に、第7図の様に給送装置1がシート材のセン
ター人に配置されていない場合に、この様な現象が起こ
りやすい。さらに、第7図のシート材P1よりPtの方
が斜行しやすくなる。
However, in a feeding device equipped with a double-feed prevention means that uses returning force or braking force as the separating force, this separating force is the force that feeds the sheet material (the force generated by the feeding roller 2). ) cancel each other out, resulting in insufficient feeding power, leading to paper feeding problems such as skew and jams. In particular, such a phenomenon is likely to occur when the feeding device 1 is not placed at the center of the sheet material as shown in FIG. Furthermore, Pt is more likely to be skewed than the sheet material P1 in FIG.

又、この様なブレーキ力fがけたら〈事により、紙送り
系の給送装置より下流に位置している送シ手段(例えば
、第3図〜第5図の送りローラ5)に過大な負荷が加わ
り、送ル手段の耐久寿命を早める結果になったり、搬送
されるシート材自身をいためたり、くせをつけたりして
しまう。
Also, if such a braking force f is applied, an excessive load may be placed on the feeding means located downstream from the feeding device of the paper feeding system (for example, the feeding roller 5 in Figs. 3 to 5). This may shorten the durability of the feeding means, or damage or curl the sheet material itself.

つまり、例えば、複写装置においてはシート材の搬送速
度と感光体の回転周速が正確に一致して複写ずれが発生
しないようにするために、シート材の給送ローラ、搬送
ローラの周速と感光体の周速が理論上同一になるように
給送ローラ、搬送ローラの回転速度を設定している。し
かるに、前述したように、このように給送ローラ、搬送
ローラの回転速度を定めたとしても、給送装置では分離
ローラ又は分離板による戻し力又はブレーキ力が作用す
るために、給送装置における給送ローラの実際の周速は
その分だけ低減し易い。その結果、給送ローラ2と搬送
ローラ5.6の間でシート材に張力等が発生し、シート
材が斜行する等の欠点があった。この欠点を説明するた
めに示したのが第7図であり、図において、Bは給送装
置のセンターであり、Fけ搬送ローラ5による搬送力で
あり、fはブレーキ力で、F′けfによる搬送力の低下
を示す。
In other words, in a copying machine, for example, in order to ensure that the transport speed of the sheet material and the rotational peripheral speed of the photoreceptor match accurately to prevent copying errors, the peripheral speed of the sheet material feeding roller and transport roller must be adjusted. The rotational speeds of the feeding roller and the conveyance roller are set so that the circumferential speeds of the photoreceptors are theoretically the same. However, as described above, even if the rotational speed of the feeding roller and the conveyance roller is determined in this way, the returning force or braking force from the separation roller or separation plate acts on the feeding device, so that the rotational speed of the feeding roller and the conveying roller is The actual circumferential speed of the feeding roller is likely to be reduced by that amount. As a result, tension or the like is generated in the sheet material between the feeding roller 2 and the conveying rollers 5, 6, resulting in problems such as skewing of the sheet material. FIG. 7 is shown to explain this drawback. In the figure, B is the center of the feeding device, the conveying force by the F-shaped conveying roller 5, f is the braking force, and F' is the center of the feeding device. It shows the decrease in conveying force due to f.

従って、搬送ローラ5でシート材を搬送する場合、その
一部(fが発生する部分)で搬送力の低下が発生してシ
ート材の斜行等が発生する。
Therefore, when the sheet material is conveyed by the conveyance roller 5, the conveyance force decreases in a portion thereof (the portion where f occurs), and the sheet material becomes skewed.

〔発明の目的〕[Purpose of the invention]

本発明は上述従来例の欠点(技術的課題としては新規で
ある)に着目することによりなされたもので、分離手段
を備える給送装置の下流側においてシート材に張力等の
不都合が発生しないようにした、分離手段を備える給送
装置の制御方法を提供することを目的とする。
The present invention has been made by focusing on the drawbacks of the above-mentioned conventional example (which is new as a technical problem). It is an object of the present invention to provide a method for controlling a feeding device equipped with a separating means.

〔問題点を解決するための手段〕[Means for solving problems]

上述目的を達成するために本発明に係る給送装置の制御
方法は、画像形成プロセスにおけるシート材の搬送速度
をv5とし、給送手段の回転周速v雪を前記搬送速度v
5よりも速く設定し、前記給送装置より給送されるシー
ト材の給送速度が前記画像形成プロセスにおけるシート
材ノ搬送速度と等しくあるbけ若干速くなるようにした
ことを特徴とする特 〔実施例〕 以下、図示した一実施例に基づいて本発明を説明する。
In order to achieve the above object, a method for controlling a feeding device according to the present invention sets the conveying speed of the sheet material in the image forming process to v5, and sets the rotation peripheral speed v of the feeding means to the conveying speed v.
5, so that the feeding speed of the sheet material fed by the feeding device is equal to or slightly faster than the conveying speed of the sheet material in the image forming process. [Example] The present invention will be described below based on an illustrated example.

第1図(A)において、転写紙P1が矢印A方向に搬送
され、その時の複写プロセス・スピードは給送装置1の
下流側に位置している送りローラ対5の周速v5と同等
に設定されている。又、給送装置1は、前述の説明にも
あった様に、紙送り系で重送が発生した場合に、給送ロ
ーラ2と分離ローラ3との組み合せにより、最下位紙は
矢印入方向へ給送ローラ2により給送され、それより上
部にある紙は分離ローラ3の回転方向(給送ローラ2の
回転方向と同方向)へ、つまり、矢印B方向へ押し戻さ
れるかあるいは停止状態となる。そして、押し戻された
紙はつぎの紙送りタイミング時に再び両ローラ2,3地
点を通過する事になる。この種の重送紙分離メカニズム
は、第1図(B) (C)で給送ローラ2と分離ローラ
3との紙送り方向から見た図で明らかである。つまり、
両手段はぐし歯状に互いの間にわずかなオーバーラツプ
量(0,5〜0.8)をもって設定され、転写紙P1は
両手段間で波形を形成して、重送紙束の最下位のものか
ら順に一枚毎分離される。
In FIG. 1(A), the transfer paper P1 is conveyed in the direction of arrow A, and the copying process speed at this time is set equal to the peripheral speed v5 of the feed roller pair 5 located downstream of the feeding device 1. has been done. In addition, as explained above, in the feeding device 1, when double feeding occurs in the paper feeding system, the lowest paper is moved in the direction of the arrow by the combination of the feeding roller 2 and the separation roller 3. The paper above is fed by the feed roller 2 and is pushed back in the rotation direction of the separation roller 3 (same direction as the rotation direction of the feed roller 2), that is, in the direction of arrow B, or is stopped. Become. Then, the pushed back paper passes through both rollers 2 and 3 again at the next paper feeding timing. This kind of double-feed separation mechanism is clearly seen in FIGS. 1(B) and 1(C), which are views of the feed roller 2 and separation roller 3 viewed from the paper feeding direction. In other words,
Both means are set in a serrated manner with a slight overlap amount (0.5 to 0.8) between each other, and the transfer paper P1 forms a waveform between the two means, and the transfer paper P1 is placed at the bottom of the stack of overlapped sheets. Each piece is separated one by one.

さて、この種の給送装置1においては、本発明の特徴に
よれば給送ローラ2の周速v2を予め送りローラ5の周
速vsよりも速くなるように設定(分離ローラの抗力を
考慮してギヤ列を変えたり、ローラの半径を変えたりす
る)して、分離ローラ3の周速v3は分離手段の耐久性
能から決定され、v3は周速vsに比べかなり遅い適宜
なスピードが選ばれる。以上の設定によって、給送装置
から給送後の転写紙搬送スピードを、本来の複写プロセ
ス・スピードに一致する送りローラ5の周速v5と同等
もしくはそれに近いスピードまで回復させる事が可能と
なる。実際には、紙種9紙サイズあるいは重送紙枚数(
あるいは給紙積載枚数)等によシ、分離ローラ3に  
 ゛よる戻し力(ブレーキ力)以外の抵抗やスリップが
生じ、送シ側、給送ローラの周速v2は実験を通して決
定されるものである。
Now, in this type of feeding device 1, according to the feature of the present invention, the circumferential speed v2 of the feeding roller 2 is set in advance to be faster than the circumferential speed vs of the feeding roller 5 (taking into account the drag force of the separating roller). (by changing the gear train or changing the radius of the roller), the circumferential speed v3 of the separating roller 3 is determined from the durability of the separating means, and an appropriate speed is selected for v3, which is considerably slower than the circumferential speed vs. It will be done. With the above settings, it is possible to restore the transfer paper conveyance speed after being fed from the feeding device to a speed that is equal to or close to the circumferential speed v5 of the feed roller 5, which corresponds to the original copying process speed. In reality, 9 paper types, 9 paper sizes, or the number of multi-feed sheets (
or the number of sheets loaded in the paper feed), etc., to the separation roller 3.
Resistance and slip occur in addition to the returning force (braking force) caused by the rotation, and the peripheral speed v2 of the feeding roller on the feeding side is determined through experiments.

実際に、行なった実験値として、vz=1.13V5〜
1.27vs(VsK対して13X〜27Nスピード・
アップ)、この時、Vs=0.23V5に固定にした時
良好な結果を得た°。又、v2をかなり太き目に設定し
た時は転写紙が給送ローラ2と送りローラ5との間でル
ープを作り、ループが紙ガイドや周囲の構成部品等に当
たる現象が生ずる。
As an actual experimental value, vz=1.13V5~
1.27vs (13X~27N speed vs. VsK)
In this case, good results were obtained when Vs was fixed at 0.23V5. Furthermore, when v2 is set to be quite thick, a phenomenon occurs in which the transfer paper forms a loop between the feed roller 2 and the feed roller 5, and the loop hits the paper guide or surrounding components.

さらに、給送ローラ2の摩擦係数が小さいときには、ス
リップ現象なども生じ、あまり、大きく設定する事は避
るべきである。
Furthermore, when the friction coefficient of the feeding roller 2 is small, a slip phenomenon may occur, so setting it too large should be avoided.

本発明の他の実施例については、第5図〜第6図で示し
た構成にも適応出来、第6図の構成では、給送ローラ2
の周速v2をそれより下流の紙送シ系送りローラ5の周
速vsより速めに設定しておく事で、前述ブレーキ力に
よる斜行やジャムを防止でき、余分な負荷を排除出来、
駆動系や画像プロセス工程を安定化出来る(紙送りの負
荷変動によって、画像がみだされる事がある。)。
Other embodiments of the present invention can also be applied to the configurations shown in FIGS. 5 and 6. In the configuration shown in FIG.
By setting the circumferential speed v2 of the paper feed roller 5 to be faster than the circumferential speed vs of the paper feed system feed roller 5 downstream from it, it is possible to prevent skewing and jamming caused by the aforementioned braking force, and eliminate excess load.
The drive system and image processing process can be stabilized (images may be distorted due to load fluctuations in paper feeding).

以上が本発明に係る給送装置の一実施例の説明であるが
、本発明はこの実施例に限定されないこと社勿論である
The above is a description of one embodiment of the feeding device according to the present invention, but it goes without saying that the present invention is not limited to this embodiment.

例えば、第1図において、給送ローラ2、分離ローラ3
の上下を逆にしてもよい。
For example, in FIG. 1, the feeding roller 2, the separating roller 3
You can also turn it upside down.

また、第1図(A)に示した構成は、給送装置がシート
材の搬送路の途中に設けられている重送防止手段として
示されている(このようなものも広義の給送装置と呼ぶ
)が、第2図、第3図に示すような本来の給送装置にお
いても適用可能である。尚、第2図はピックアップロー
ラ10によってカセット11内のシートを分離し、重送
シートを給送ローラ2と分離ローラ3によって更に一枚
に分離する構成である。
In addition, the configuration shown in FIG. 1(A) is shown as a means for preventing double feeding in which the feeding device is provided in the middle of the sheet material conveyance path (such a device is also referred to as a feeding device in a broad sense). ) is also applicable to the original feeding device as shown in FIGS. 2 and 3. Incidentally, FIG. 2 shows a configuration in which the sheets in the cassette 11 are separated by the pickup roller 10, and the multi-fed sheets are further separated into single sheets by the feeding roller 2 and the separation roller 3.

また、第3図は、給送ローラ2が前述第2図のピックア
ップローラ10を兼ねるもので、カセット11の積載シ
ートから給送ローラ2で分離し、重送シートを給送ロー
ラ2と摩擦板4によって更に一枚に分離する構成である
In addition, in FIG. 3, the feeding roller 2 also serves as the pickup roller 10 shown in FIG. 4, it is further separated into one sheet.

更に、上述ではカセット給紙の場合について説明したが
、多重複写、両面複写の場合にシート材を中間的に積載
する中間トレイからの再給紙の場合についても適用でき
る。
Furthermore, although the above description has been made regarding the case of paper feeding from a cassette, the present invention can also be applied to the case of paper refeeding from an intermediate tray on which sheet materials are intermediately stacked in the case of multiple copying or double-sided copying.

更に、給送手段としては、給送ローラでもよいし、給送
ベルトでもよい。
Further, the feeding means may be a feeding roller or a feeding belt.

〔発明の効果〕〔Effect of the invention〕

本発明に係る分離手段を備える給送装置の制御方法は上
述の通りであって、給送装置の給送手段の回転周速を分
離手段による抗力を考慮して予め画像形成プロセスのシ
ート材搬送速度よりも早目に設定したので、実際の給送
にあたって分離手段による抗力が作用してもシート材の
給送速度は画像形成プロセスのシート材搬送速度よりも
遅くなることはない。従って、シート材に張力等の不都
合な力が作用せず、シート材の斜行等が発生しないとい
う効果がある。
The method of controlling a feeding device equipped with a separating means according to the present invention is as described above, and the peripheral speed of rotation of the feeding device of the feeding device is set in advance to convey the sheet material in the image forming process, taking into account the drag force by the separating device. Since the sheet material feeding speed is set earlier than the sheet material feeding speed, the sheet material feeding speed will not become slower than the sheet material transporting speed in the image forming process even if a drag force from the separating means acts during actual feeding. Therefore, there is an effect that no undesirable force such as tension is applied to the sheet material, and skewing of the sheet material does not occur.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(A)は本発明に係る一実施例の正面図、第1図
(B)は第1図(A)の給送ローラ2、分離四−ラ3の
側面図、第1図(C)は第1図(B)の部分拡大図、第
2図、第3図は各々が本発明に係る他の実施例の正面図
、第4図〜第6図は各々が従来例の正面図、第7図は力
の分布を示す平面図である。 1・・・給送装置、2・・・給送ローラ、3・・・分離
ローラ、4・・・分離板、5・・・搬送ローラ(複写プ
ロセス)、Pl・・・シート材、P2・・・重送シート
材、V2.V3.V5・・・周速。
FIG. 1(A) is a front view of one embodiment of the present invention, FIG. 1(B) is a side view of the feeding roller 2 and separation roller 3 of FIG. 1(A), and FIG. C) is a partially enlarged view of FIG. 1(B), FIGS. 2 and 3 are front views of other embodiments of the present invention, and FIGS. 4 to 6 are front views of the conventional example. 7 are plan views showing the distribution of force. DESCRIPTION OF SYMBOLS 1... Feeding device, 2... Feeding roller, 3... Separation roller, 4... Separation plate, 5... Conveyance roller (copying process), Pl... Sheet material, P2...・・Double fed sheet material, V2. V3. V5... peripheral speed.

Claims (1)

【特許請求の範囲】[Claims] (1)シート材を給送する方向に回転する給送手段と重
送シート材に対して給送力に抗する抵抗力が作用する分
離手段とから成つてシート材を1枚ずつ画像形成プロセ
スに給送する、分離手段を備える給送装置の制御方法に
おいて、 前記画像形成プロセスにおけるシート材の 搬送速度をV_5とし、 前記給送手段の回転周速V_2を前記搬送速度V_5よ
りも速く設定し、 前記給送装置より給送されるシート材の実 際の給送速度が前記画像形成プロセスにおけるシート材
の搬送速度と略等しくあるいは若干速くなるようにした
ことを特徴とする、分離手段を備える給送装置の制御方
法。
(1) Image forming process for sheet materials one by one, consisting of a feeding means that rotates in the direction of feeding the sheet materials and a separating means that applies a resistance force against the feeding force to the multi-fed sheet materials. In the method of controlling a feeding device including a separating means, the conveying speed of the sheet material in the image forming process is set to V_5, and the peripheral rotational speed V_2 of the feeding means is set higher than the conveying speed V_5. , a feeder equipped with a separating means, characterized in that the actual feeding speed of the sheet material fed by the feeding device is approximately equal to or slightly faster than the conveying speed of the sheet material in the image forming process; How to control the sending device.
JP60115770A 1985-05-28 1985-05-28 Sheet material feeder Expired - Lifetime JPH07115764B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60115770A JPH07115764B2 (en) 1985-05-28 1985-05-28 Sheet material feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60115770A JPH07115764B2 (en) 1985-05-28 1985-05-28 Sheet material feeder

Publications (2)

Publication Number Publication Date
JPS61273445A true JPS61273445A (en) 1986-12-03
JPH07115764B2 JPH07115764B2 (en) 1995-12-13

Family

ID=14670619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60115770A Expired - Lifetime JPH07115764B2 (en) 1985-05-28 1985-05-28 Sheet material feeder

Country Status (1)

Country Link
JP (1) JPH07115764B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6231041B1 (en) * 1999-01-25 2001-05-15 Moore U.S.A. Inc. Method and apparatus for separating 2-up sheets
US6784534B1 (en) 2002-02-06 2004-08-31 Amkor Technology, Inc. Thin integrated circuit package having an optically transparent window
US6861720B1 (en) 2001-08-29 2005-03-01 Amkor Technology, Inc. Placement template and method for placing optical dies

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069260U (en) * 1983-10-14 1985-05-16 株式会社リコー Frictional separation paper feeder
JPS60167836A (en) * 1984-02-10 1985-08-31 Ricoh Co Ltd Friction-separation paper feeder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069260U (en) * 1983-10-14 1985-05-16 株式会社リコー Frictional separation paper feeder
JPS60167836A (en) * 1984-02-10 1985-08-31 Ricoh Co Ltd Friction-separation paper feeder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6231041B1 (en) * 1999-01-25 2001-05-15 Moore U.S.A. Inc. Method and apparatus for separating 2-up sheets
US6861720B1 (en) 2001-08-29 2005-03-01 Amkor Technology, Inc. Placement template and method for placing optical dies
US6784534B1 (en) 2002-02-06 2004-08-31 Amkor Technology, Inc. Thin integrated circuit package having an optically transparent window

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