JPH0323120A - Method for controlling initial stop position of fed sheet face - Google Patents
Method for controlling initial stop position of fed sheet faceInfo
- Publication number
- JPH0323120A JPH0323120A JP15507189A JP15507189A JPH0323120A JP H0323120 A JPH0323120 A JP H0323120A JP 15507189 A JP15507189 A JP 15507189A JP 15507189 A JP15507189 A JP 15507189A JP H0323120 A JPH0323120 A JP H0323120A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- motor
- paper feeding
- feeding
- circuit
- 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
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 42
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 15
- 238000002360 preparation method Methods 0.000 description 15
- 230000000630 rising effect Effects 0.000 description 11
- 238000012937 correction Methods 0.000 description 7
- 238000012840 feeding operation Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Handling Of Cut Paper (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
カット紙プリンタ等の用紙供給装置に設けた供給台の給
紙面が、用紙補給後の初期設定時を含めて常に一定位置
となるように設定する制御方式に関し、
用紙補給後の初期設定を含めて給紙面の高さが常に一定
位置になるように制御することにより、繰り出し不良の
ない用紙供給装置を提供することを目的とし、
用紙を載せた供給台をモータの駆動により上下動可能に
設け、上限位置の給紙面レベルに繰り出しローラと給紙
面検出センサとを設け、該給紙面検出センサのオンオフ
出力により前記モータの上昇，停止および下降駆動を制
御するようにした用紙供給装置において、前記供給台を
下限位置から上限位置に移動する際に、前記給紙面検出
センサのオン出力によりモータを上昇駆動から一旦下降
駆動に切り換えると共に、該モータの下降駆動に伴う前
記給紙面検出センサのオフ出力により再度モータを上昇
駆動に切り換えたのち、該モータの上昇駆動に伴う前記
給紙面検出センサのオン出力によりモータを停止して上
記繰り出しローラによる給紙を開始するように構或する
。[Detailed Description of the Invention] [Summary] A control method that sets the paper feeding surface of a feeding table provided in a paper feeding device such as a cut paper printer to always be at a constant position, including the initial setting after paper replenishment. The purpose of this paper feeding device is to provide a paper feeding device that does not have feeding defects by controlling the height of the paper feeding surface to always be at a constant position, including the initial setting after paper is replenished. is movable up and down by the drive of a motor, a feeding roller and a paper feeding surface detection sensor are provided at the paper feeding surface level at the upper limit position, and the raising, stopping, and lowering drive of the motor is controlled by the on/off output of the paper feeding surface detection sensor. In the paper feeding device, when the feeding table is moved from the lower limit position to the upper limit position, the motor is once switched from ascending drive to descending drive by the ON output of the paper feeding surface detection sensor, and the motor is once switched from ascending drive to descending drive. After switching the motor to upward drive again due to the accompanying off output of the paper feeding surface detection sensor, the motor is stopped due to the on output of the paper feeding surface detection sensor accompanying the upward driving of the motor, and paper feeding by the feeding roller is started. It is structured as follows.
本発明は、カソト紙プリンタ等の用紙供給装置に設けた
供給台の給紙面が、用紙補給後の初期設定時を含めて常
に一定位置となるように設定する制御方式に関する。The present invention relates to a control method for setting the paper feeding surface of a feeding table provided in a paper feeding device such as a cassette paper printer so that it is always at a constant position, including the initial setting after paper replenishment.
近年、プリンタ等における処理量の増加と長時間連続運
転により、用紙供給装置の大容量化が要求されている。2. Description of the Related Art In recent years, due to increased throughput and long-term continuous operation of printers and the like, there has been a demand for larger capacity paper supply devices.
このため、モータ等の駆動による可動式の供給台をもっ
た大容量の用紙供給装置が提供されている。然しこの大
容量の供給台の可動範囲が大きいことから、給紙面の停
止位置が必ずしも一定せず、用紙の安定な給紙が行えな
くなることがある。For this reason, a large-capacity paper feeding device having a movable feeding table driven by a motor or the like is provided. However, since the movable range of this large-capacity supply table is large, the stopping position of the sheet feeding surface is not necessarily constant, and stable sheet feeding may not be possible.
本発明では、これらの供給台の停止位置が、必ず一定に
なるように制御する回路の提供を行う。The present invention provides a circuit that controls the stop positions of these supply stands to be always constant.
第４図はカット紙プリンタにおける用紙供給装置の構威
を示す図、また第５図は従来例における給紙動作を示す
図である。FIG. 4 is a diagram showing the configuration of a paper feeding device in a cut paper printer, and FIG. 5 is a diagram showing a paper feeding operation in a conventional example.
第４図の用紙供給装置４０は、停止位置制御回路４１に
てモータ４２を回転させて供給台４３を上方向または下
方向に移動させている。いま供給台４３が最下位置にあ
って用紙４４の補給を完了すると、供給台４３は給紙の
ため上昇し、用紙４４の上面の給紙面の高さを検出する
ように設けた給紙面検出センサ４５によって用紙上面が
用紙供給位置に達したことを検出して停止し、用紙４４
の上面に接触して設けた繰り出しローラ４６により用紙
４４の繰り出し給祇が開始される。次ぎにオペレータが
用紙の補給を行おうとすると、供給台４３は下降して下
限センサ４７が最下位置を検知して供給台４３は動作を
停止し、オペレータは用紙補給を行う事が可能となる。In the paper supply device 40 shown in FIG. 4, a stop position control circuit 41 rotates a motor 42 to move a supply table 43 upward or downward. When the supply table 43 is currently at the lowest position and the supply of paper 44 is completed, the supply table 43 rises to feed the paper, and the paper feed surface detection device provided to detect the height of the paper feed surface above the paper 44 The sensor 45 detects that the top surface of the paper has reached the paper supply position and stops, and the paper 44
Feeding and feeding of the paper 44 is started by a feed roller 46 provided in contact with the upper surface of the sheet. Next, when the operator attempts to replenish paper, the supply table 43 descends, the lower limit sensor 47 detects the lowest position, and the supply table 43 stops operating, allowing the operator to replenish paper. .
また第５図において、オペレータが用紙を補給しようと
すると、供給台４３は■の位置に停止し、用紙補給の状
態となる。用紙補給が完了すると、モータは上昇駆動を
開始して給紙準備の状態に入り、供給台４３は上昇して
給紙開始位置■に達すると、給紙面検出センサ４５がオ
ンとなり給紙を可能にする。ここで該給紙面検出センサ
４５の回路はヒステリシス特性を有しているので給紙さ
れて用紙高さが低くなり■の位置にくると、給紙面検出
センサ４５がオフとなって給紙面の高さを微補正（用紙
の３〜８枚程度の厚さ寸法）する上昇を行って■の位置
に達して給紙面検出センサ４５がオンとなり給紙を継続
する。以下同様に、■一■一■一■と給紙面の高さレベ
ルの微補正を繰り返しながら［相］の用紙４４が無くな
るまで給紙を続ける。用祇４４が無くなってオペレータ
が用紙を補給しようとすると、供給台４３は補給準備０
に入り下降を開始して最下位置０に停止して用紙補給が
行われる。そして用紙補給が完了すると再び最下位置の
から上昇を開始し、給紙準備■の上昇を経て給紙は開始
される。Further, in FIG. 5, when the operator attempts to replenish paper, the supply table 43 stops at the position (■) and enters the paper replenishment state. When paper replenishment is completed, the motor starts to drive upward and enters the paper feeding preparation state, and when the supply table 43 rises and reaches the paper feeding start position ■, the paper feeding surface detection sensor 45 turns on and paper feeding is possible. Make it. Here, the circuit of the paper feeding surface detection sensor 45 has a hysteresis characteristic, so when the paper is fed and the height of the paper becomes low and reaches the position (■), the paper feeding surface detection sensor 45 is turned off and the paper feeding surface becomes high. The paper is raised to slightly correct the thickness (thickness of about 3 to 8 sheets of paper) and reaches the position (3), where the paper feeding surface detection sensor 45 is turned on and paper feeding continues. Thereafter, in the same manner, the paper feeding is continued until the [phase] paper 44 is exhausted while repeating fine correction of the height level of the paper feeding surface. When the operator tries to replenish paper after the paper 44 runs out, the supply table 43 is ready for replenishment.
It enters the position, starts descending, stops at the lowest position 0, and paper is replenished. When paper replenishment is completed, it starts to rise again from the lowest position, and after the paper feed preparation stage (2) rises, paper feeding starts.
第６図は用紙給紙装置の停止位置制御回路であり、従来
例の回路を示す図である。また第７図は、第６図に示し
た従来例の回路でのタイムチャートを示す図である。第
６図中、１１は論理積を求める第一ＡＮＤ回路、ｌ２は
人力の極性反転した信号を出力する第一１ＮＶ回路、１
３はフリップフロップ回路である第一ＦＦ、また同様に
１４は第二ＩＮＶ回路、１５は第三ＩＮＶ回路、１６は
第二ＡＮＤ回路、なおｌ７は第二ＦＦである。以下、第
６図と第７図を用い、■用紙補給、■給紙準備、■給紙
、■補給準備の４段階に分け動作の概要を説明する。FIG. 6 is a stop position control circuit for a paper feeding device, and is a diagram showing a conventional circuit. Further, FIG. 7 is a diagram showing a time chart in the conventional circuit shown in FIG. 6. In FIG. 6, 11 is a first AND circuit that calculates a logical product, l2 is a first 1NV circuit that outputs a human-powered signal with the polarity inverted, and 1
3 is a first FF which is a flip-flop circuit, 14 is a second INV circuit, 15 is a third INV circuit, 16 is a second AND circuit, and 17 is a second FF. The outline of the operation will be explained below with reference to FIGS. 6 and 7, divided into four stages: (1) paper replenishment, (2) paper feed preparation, (2) paper feed, and (2) replenishment preparation.
■用紙補給
供給台４３は最下限位置にあり、給紙面検出信号（Ｃ）
の出力“Ｏ゛の反転出力“１゛が第一ＡＮＤ回路１ｌに
加わっている。用紙補給が終わると第７図（ｂ）の補給
完了信号は゛ｌ゜ となり、従って第一ＡＮＤ回路１１
の両入力は“１“ となり、論理積の出力を第７図（ｄ
ｌの出力のように“１゜にして第一ＦＦ１３をセントし
、第７図ｆａｔに示すようにつぎにくるクロソクの立ち
上がりのタイミングにおいて第一ＦＦ１３の出力である
第７図（Ｃ）の上昇駆動信号を′１゛にする。このため
モータ駆動回路１８はモータ４２を回転させて供給台４
３の上昇を開始させる。■The paper supply table 43 is at the lowest position, and the paper feeding surface detection signal (C)
The inverted output "1" of the output "O" is applied to the first AND circuit 1l. When paper replenishment is completed, the replenishment completion signal shown in FIG. 7(b) becomes ゛l゜.
Both inputs become “1”, and the output of the logical product is shown in Figure 7 (d
Set the first FF13 to 1 degree as shown in the output of l, and as shown in figure 7 fat, at the timing of the rising of the next clock, the output of the first FF13 (C) rises. The drive signal is set to '1'. Therefore, the motor drive circuit 18 rotates the motor 42 to
3 starts to rise.
同時に第７図（ｆ）の下限検出信号は“Ｏ゜に転ずる。At the same time, the lower limit detection signal in FIG. 7(f) changes to "O°".
■給紙準備
供給台４３が上方向への移動が終わると、給紙面検出セ
ンサ４５はこの移動終了を検出して第７図（Ｃ）の給紙
面検出信号を“１゛にする。この給紙面検出信号（Ｃ）
は第一ＦＦ１３をリセノトし”Ｃつぎのクロックの立ち
上がりのタイミングで上昇駆動信号（ｅ）を“０゛にし
てモータ４２の駆動を中止して上昇を停止さて給紙■に
移る。- When the paper feed preparation supply table 43 finishes moving upward, the paper feed surface detection sensor 45 detects the end of this movement and sets the paper feed surface detection signal in FIG. 7(C) to "1". Paper surface detection signal (C)
resets the first FF 13, sets the rising drive signal (e) to "0" at the next rising edge of the clock, stops driving the motor 42, stops the rising, and moves on to sheet feeding (2).
■給紙
給祇■が行われて用紙の上面高さが変化すると、この高
さ変化を給紙面検出センサ４５がオフになることによっ
て検出を行い、その都度モータを微動させる微補正を行
って給紙面の高さを一定に保つようにしながら給紙をｍ
続してゆく。■When the top surface height of the paper changes as paper feeding ■ is performed, this height change is detected by turning off the paper feeding surface detection sensor 45, and fine correction is performed by slightly moving the motor each time. Feed the paper by m while keeping the height of the paper feeding surface constant.
Continue.
■補給準備
給紙■が行われて用紙が無くなり用紙補給のため用紙供
給装置４０のドアが開けられると、補給完了信号（ｂ）
は“０゜になって第二ＩＮＶ回路１４の出力は“ｌ゛に
なり、また第７図（ｆ）の下限検出信号も“Ｏ゛になっ
ていることから第三ＩＮＶ回路１５の出力も“１゛とな
る。よって第二ＡＮＤ回路１６の両入力は゛１゜ とな
り、論理積の出力を“１”にして第二ＦＦ１７をセント
する。従って第二ＦＦ１７はつぎのクロソクの立ち上が
りのタイミングにおいて“１′となる下降駆動信号（ｈ
ｌを出力して、モータ４２を下降方向に駆動を行われる
。同時に給給紙面検出センサ４５が給紙面から離れる事
により、給紙面検出信号（Ｃ）は“Ｏ゜になる。なおこ
こで供給台４３が下限位置に達して下限検出信号（『）
が“１“になると、第三ＩＮＶ回路１５の出力は“Ｏ′
になり第二ＡＮＤ回路１６の論理積の出力（尊は゜０”
になる。このため第二ＦＦ１７は、つぎのクロックの立
ち上がりのタイミングにおいて下降駆動信号（ｈｌを“
０゛にして下降を停止させてつぎの用紙補給■に移る。When the paper is exhausted after ■Replenishment preparation paper feeding■ is performed and the door of the paper supply device 40 is opened to replenish paper, a replenishment completion signal (b) is generated.
becomes "0" and the output of the second INV circuit 14 becomes "1", and since the lower limit detection signal in FIG. 7(f) also becomes "0", the output of the third INV circuit 15 also becomes "0". “It becomes 1゛. Therefore, both inputs of the second AND circuit 16 become ``1'', and the output of the logical product becomes ``1'', and the second FF 17 is sent. Therefore, the second FF 17 receives the falling drive signal (h
l is output, and the motor 42 is driven in the downward direction. At the same time, the paper feeding surface detection sensor 45 moves away from the paper feeding surface, so that the paper feeding surface detection signal (C) becomes "O°".At this point, the feeding table 43 reaches the lower limit position and the lower limit detection signal (')
becomes "1", the output of the third INV circuit 15 becomes "O'
Then, the output of the logical product of the second AND circuit 16 (the output is ゜0''
become. Therefore, the second FF 17 outputs the falling drive signal (hl) at the next clock rise timing.
Set it to 0゛ to stop the descent and move on to the next paper supply ■.
以下この動作を繰り返すことにより、給紙と印字を繰り
返して行く。By repeating this operation, paper feeding and printing are repeated.
以上に説明したように従来の用紙供給装置においては、
給紙面の高さを検知して得られた給紙面検出信号を用い
てモータを停止させている。そして給紙による用紙面高
さの変化を検出すると、その都度モータ４２を微動させ
るようにして給紙面の高さを微補正して一定に保つよう
にして給紙をおこなっていた。ところがオペレータが供
給台４３を下限（最下位位置〉まで下降させて紙葉類の
補給や交換を行い、再びその用紙補給直後に供給台４３
を上昇させた時の給紙面（用紙上面）の高さと、上記■
の給紙時における給紙面高さ微補正後の給紙面の高さと
は、それぞれの移動距離の差から停止直前におけるモー
タの回転速度がそれぞれ異なるために、モータ４２の停
止制御を始めてからモータ４２の停止するまでの時間に
差を生し、用紙上面（給紙面）の位置が変動して一定し
なくなることになる。つまり用紙補給直後のモータ４２
の回転速度は大きいので給紙時の停止位置である制御目
的位置をオバーラン（用紙の数枚程度の厚さ寸法）して
停止する。As explained above, in the conventional paper feeding device,
The motor is stopped using a paper feeding surface detection signal obtained by detecting the height of the paper feeding surface. When a change in the height of the paper surface due to paper feeding is detected, the motor 42 is slightly moved each time to finely correct the height of the paper feeding surface and feed the paper so as to keep it constant. However, the operator lowers the supply table 43 to the lower limit (lowest position) to replenish or replace paper sheets, and immediately after replenishing the sheets, the supply table 43
The height of the paper feed surface (top surface of the paper) when raised and the above ■
The height of the paper feeding surface after fine correction is the height of the paper feeding surface when feeding paper.The height of the paper feeding surface after fine correction is the same as the height of the paper feeding surface after fine correction. This causes a difference in the time it takes for the paper to stop, and the position of the top surface (feeding surface) of the paper fluctuates and becomes inconsistent. In other words, the motor 42 immediately after paper replenishment
Since the rotational speed of is high, the control target position, which is the stop position during paper feeding, is overrun (thickness dimension of several sheets of paper) and then stopped.
従って従来の制御動作では、用紙補給後の初期設定にお
いて用紙上面（給紙面）の停止位置が一定しないため繰
り出しローラと用紙との接触圧は一定に保持することが
できず、用紙繰り出し不良になるいう問題が生じている
。Therefore, in the conventional control operation, the stopping position of the top surface (paper feeding surface) of the paper is not constant in the initial setting after paper replenishment, so the contact pressure between the feeding roller and the paper cannot be maintained constant, resulting in paper feeding failure. A problem has arisen.
本発明は、用紙補給後の初期設定を含めて給紙面の高さ
が常に一定位置になるように制御することにより、繰り
出し不良のない用紙供給装置を提供することを目的とす
る。SUMMARY OF THE INVENTION An object of the present invention is to provide a paper feeding device that is free from feeding defects by controlling the height of the paper feeding surface to always be at a constant position, including the initial setting after paper replenishment.
本発明では、用紙を載せた供給台（２２）をモータ１９
の駆動により上下動可能に設け、上限位置の給紙面レベ
ルに繰り出しローラ４６と給紙面検出センサ２０とを設
け、該給紙面検出センサ２０のオンオフ出力により前記
モータ１９の上昇，停止および下降駆動を制御するよう
にした用紙供給装置において、前記供給台２２を下限位
置から上限位置に移動する際に、前記給紙面検出センサ
２０のオン出力によりモータ１９を上昇駆動から一旦下
降駆動に切り換えると共に、該モータ１９の下降駆動に
伴う前記給紙面検出センサ２０のオフ出力により再度モ
ータ１９を上昇駆動に切り換えたのち、該モータ１９の
上昇駆動に伴う前記給紙面検出センサ２０のオン出力に
よりモータ１９を停止して上記繰り出しローラ４６によ
る給紙を開始するように構成する。In the present invention, the supply table (22) on which paper is placed is moved by the motor 19.
A feeding roller 46 and a paper feeding surface detection sensor 20 are provided at the paper feeding surface level at the upper limit position, and the on/off output of the paper feeding surface detection sensor 20 drives the motor 19 to ascend, stop, and descend. In the paper feeding device, when the feeding table 22 is moved from the lower limit position to the upper limit position, the motor 19 is once switched from the upward drive to the downward drive by the ON output of the paper feeding surface detection sensor 20, and The motor 19 is again switched to upward drive due to the off output of the sheet feeding surface detection sensor 20 accompanying the downward drive of the motor 19, and then the motor 19 is stopped due to the on output of the sheet feeding surface detection sensor 20 accompanying the upward driving of the motor 19. Then, the feed roller 46 starts feeding the paper.
本発明では、用紙補給の直後のような移動距離の長い場
合において、用紙補給から給紙可能までの時間を補給記
憶回路１に記憶させるようにし、かつ補給記憶回路ｌか
らの記憶信号が出力されている間において制御目的位置
からのオーバランを見越して給紙面を制御目的位置から
一旦上昇させたのち給紙面より若干の低位置まで一旦は
戻す動作をさせ、再度制御目的位置までの短い距離にて
給紙面に達するようにしている。In the present invention, when the moving distance is long such as immediately after paper replenishment, the time from paper replenishment until paper feeding is possible is stored in the replenishment memory circuit 1, and the storage signal from the replenishment memory circuit 1 is output. During this time, in anticipation of an overrun from the control target position, the paper feed surface is raised from the control target position, and then returned to a position slightly lower than the paper feed surface, and then again at a short distance to the control target position. The paper is made to reach the paper feed surface.
従って移動距離の長い間に生じた大きなオーバランは除
かれるようになり、常に給紙面を安定位置に停止させる
ことが可能にできる。Therefore, a large overrun that occurs during a long movement distance can be eliminated, and the paper feeding surface can always be stopped at a stable position.
〔実 施 例〕
第ｌ図は、本発明による給紙動作を示す図である。先ず
給紙が終わると、供給台は■の位置の用紙補給の状態と
なる。ここで用紙補給が完了するとモータは上昇駆動を
開始して給紙準備の状態に入り、供給台は上昇■を経て
最上昇点■になって停止し、次ぎにモータは下降駆動さ
れて供給台を下降させ■の位置になって停止する。更に
■の位置でモータは上昇駆動されて供給台を上昇させ■
の位置になって停止する。以下この■点が袷祇開始点と
なり、給紙を開始する。ここで給紙されて用紙高さが低
くなって■の位置にくると、給紙面検出センサ２０がオ
フとなって給紙面の高さを微補正する上昇を行って■の
位置に達して給紙面検出センサ２０がオンとなり給紙を
ｗＩ続する。以下同様に、■一〇一［相］一〇と給紙面
の高さレベルの微補正を繰り返しなから＠の用紙が無く
なる位置まで給紙を続ける。給紙が完了して用紙が無く
なった［相］の後、供給台は補給準備０に入り下降を開
始し、最下位置［相］にて停止して用紙補給の状態とな
る。[Embodiment] FIG. 1 is a diagram showing a paper feeding operation according to the present invention. First, when paper feeding is finished, the supply table is in the paper supplying state at the position (■). When the paper replenishment is completed, the motor starts to drive upward and enters the paper feeding preparation state, and the supply platform rises to the highest point ■ and stops.Then, the motor is driven downward and the supply platform Lower it and stop at the ■ position. Furthermore, at the position of ■, the motor is driven upward to raise the supply platform.■
It will stop at this position. Hereinafter, this point ■ becomes the Baki starting point, and paper feeding begins. When the paper is fed here and the height of the paper becomes low and reaches the position (■), the paper feeding surface detection sensor 20 turns off and rises to slightly correct the height of the paper feeding surface until it reaches the position (■) and the paper is fed. The paper surface detection sensor 20 is turned on and paper feeding continues. In the same manner, the fine correction of the height level of the paper feeding surface is repeated with ■101 [phase] 10, and paper feeding is continued until the @ paper runs out. After the paper feeding is completed and the paper runs out [phase], the supply table enters the replenishment preparation state 0 and starts to descend, stops at the lowest position [phase], and enters the state of paper replenishment.
そして用紙補給が完了すると再び最下位置のから上昇を
開始し、給紙準備■の上昇を経て給紙は開始されるよう
に動作をさせている。When paper replenishment is completed, it starts to rise again from the lowest position, and after the paper feeding preparation stage (2) rises, paper feeding is started.
第２図は本発明による一実施例の回路を示す図、また第
３図は本発明の回路のタイムチャートを示す図である。FIG. 2 is a diagram showing a circuit according to an embodiment of the present invention, and FIG. 3 is a diagram showing a time chart of the circuit according to the present invention.
図中、１は補給記憶回路であり、フリップフロップ回路
の第四ＦＦ２８、第五ＦＦ３０及び論理積をとる第五Ａ
ＮＤ回路２９よりなる。２は上昇・下降制御回路であり
、従来例の第一ＡＮＤ回路ｌ１、第一１ＮＶ回路１２、
第二ＩＮＶ回路１４、第三ＩＮＶ回路１５及び第二ＡＮ
Ｄ回路ｌ６と、前記従来例と同様に動作をする第四ＩＮ
Ｖ回路２３ａ、第五ＩＮＶ回路２３ｂ１第三ＡＮＤ回路
２４、第四ＡＮＤ回路２６、及び論理和を演算をする第
一〇Ｒ回路２５と第二ＯＲ回路２７よりなる回路である
。また１３は第一ＦＦ，１７は第二ＦＦである。以下そ
の動作を■用紙補給、■給紙準備、■給紙、■補給準備
の４段階に分けて説明する。In the figure, 1 is a replenishment storage circuit, which includes a fourth FF28, a fifth FF30 of the flip-flop circuit, and a fifth A that performs logical product.
It consists of an ND circuit 29. 2 is a rise/fall control circuit, which includes the first AND circuit l1 of the conventional example, the first 1NV circuit 12,
Second INV circuit 14, third INV circuit 15 and second AN
D circuit l6 and a fourth IN that operates in the same manner as the conventional example.
This circuit is made up of a V circuit 23a, a fifth INV circuit 23b1, a third AND circuit 24, a fourth AND circuit 26, a first 0R circuit 25 and a second OR circuit 27 for calculating a logical sum. Further, 13 is a first FF, and 17 is a second FF. The operation will be explained below in four stages: (1) Paper replenishment, (2) Paper feeding preparation, (2) Paper feeding, and (2) Replenishment preparation.
■用紙補給
先ず用紙を補給している時には、供給台２２は最下限位
置にあるため、第３図（ｂｌの補給完了信号は“０゜に
ある。用紙補給されて補給完了信号（ｂｌが“１′にな
った時、供給台２２は最下位置にあるため第３図（Ｃ）
の給紙面検出信号と第３図（ｍｌの下限駆動信号の出力
がともに“０゜にある。従って第一ＡＮＤ回路１１に入
力する三つの人力は、共に゜１゛になってＡＮＤ回路１
１の第３図（ｅ）の出力を“１゛にして第一ＦＦ１３を
セントし、第３図（ａ）に示すようにつぎに第一ＦＦ１
３に入力するクロソクの立ち上がりのタイミングにおい
て第３図（ｆ）に示す如く、上昇駆動信号である第一Ｆ
Ｆ１３の出力を′１゛ にする。このためモータ駆動回
路１８はモータ１９を回転させ、供給台２２の上昇を開
始してっぎの段階に移る。同時に第３図（ｂ）の補給完
了信号は補給記ｔ０回路１の第五ＦＦ３０をセソトして
用紙補給完了したことを記憶し、第五ＦＦ３０の出力（
ｇｌを゜１゛に設定する。■給紙準備
この動作のシーケンスは、（１）上昇一停止、（２）下
降一停止、（３）上昇の３つの動作に分けて行われる。■ Paper Replenishment First, when paper is being replenished, the supply table 22 is at the lowest position, so the replenishment completion signal (bl is at "0°" as shown in FIG. 3). 1', the supply table 22 is at the lowest position, so the position shown in Fig. 3 (C)
The paper feeding surface detection signal in FIG. 3 and the output of the lower limit drive signal in FIG.
1, the output of FIG. 3(e) is set to "1", the first FF13 is set, and then the first FF1 is set as shown in FIG. 3(a).
As shown in FIG. 3(f), at the timing of the rise of the cloth input to the clock signal 3, the first F, which is a rising drive signal,
Set the output of F13 to '1'. Therefore, the motor drive circuit 18 rotates the motor 19 to start raising the supply table 22, and the process moves to the next step. At the same time, the replenishment completion signal in FIG. 3(b) causes the fifth FF30 of the replenishment record t0 circuit 1 to memorize that paper replenishment has been completed, and the output of the fifth FF30 (
Set gl to ゜1゛. (2) Paper feeding preparation This sequence of operations is divided into three operations: (1) rising and stopping, (2) descending and stopping, and (3) rising.
（１１上昇一停止
先ず供給台２２の上昇の開始の直後において下限検出信
号（ｄ）は“０゛になる。子して更に給紙面２０が上昇
して給紙面検出信号（Ｃ）が“１゛になると、この信号
（Ｃ）は第一ＡＮＤ回路１１の出力（ｅ）を“０゛にし
、同時に第一ＦＦ１３をリセソトして上昇駆動信号（ｆ
）を“０゛にする。従って、モータ１９の上昇は停止す
る。(11 Rise and Stop First, immediately after the start of the rise of the supply table 22, the lower limit detection signal (d) becomes "0". Then, the paper feed surface 20 further rises, and the paper feed surface detection signal (C) becomes "1". When the signal (C) becomes "0", the output (e) of the first AND circuit 11 becomes "0", and at the same time, the first FF 13 is reset and the rising drive signal (f
) is set to "0". Therefore, the motor 19 stops rising.
（２）下降一停止
つぎに、モータ１９の上昇駆動動作を行っていないこと
を示す第３図（ｆ）の上昇駆動信号の“０゛ レベルを
第二ＩＮＶ回路１４にて極性反転した“１゛の信号と、
給紙面検出信号ＴＣ）の“ｌ゛と用祇補給を行ったこと
を記憶した第３図（幻の“１゛を第三ＡＮＤ回路２４に
入力して論理積をとって得られた“１゛の出力（ｈｌと
補給完了信号（ｂ）の“１゛を第五ＩＮＶ回路２３ｂに
おいて′０゛に極性反転した信号を第一ＯＲ回路２５に
入力して求めた“１゛の信号と、第二ＯＲ回路２７の出
力（０の“０゛を極性反転して得られた゛１゛の信号の
３つの出力をそれぞれ求める．そしてこれら３つの“ｌ
゛の信号を第二ＡＮＤ回路ｌ６に入力して論理積をとっ
て信号（ｋ）を求め、この信号（ｋｌの立ち上がりの時
間のつぎのクロックの立ち上がりのタイミングにおいて
第二ＦＦ１７をセットし、第３図（ｍ）の信号を゛１゛
にしてモータ駆動回路ｌ８を駆動してモータ１９を回転
させて供給台２２を下降させる。次ぎに供給台２２が下
降して給紙面検出信号（Ｃ）が“０′になると、第四Ａ
ＮＤ回路２６の出力＋１）は′Ｏ゛から“ｌ゛になり、
第二ＯＲ回路２７の出力（１）も゛１′になる。よって
第二ＡＮＤ回路ｌ６の出力（ｋ）は“０゜になり、第二
ＦＦ１７をリセソトして第二ＦＦ１７の出力（ｆｆｌ）
を゜０゛ とし、モータ１９の下降は停止する。また前
述の第四ＡＮＤ回路２６の出力（１）が“Ｏ゛から“１
゛になることにより、第五ＦＦ３０のリセット人力も“
０゛から“１゜になる。よって第五ＦＦ３０の出力（ｇ
）は“１′から“０”になる、即ち用紙補給の行ったこ
との記憶（“１゛〉を解除（“０”）にする。（３）上
昇
前記の第二ＦＦ１７の出力（ＩＴＩ）の用紙補給の記憶
解除出力の゛Ｏ゛信号は、第一ＡＮＤ回路ｌ１の出力ｔ
ｅｌを“１゛にして第一ＦＦ１３をセ・ノトし、モータ
駆動回路１８を駆動してモータ１９の上昇を開始させる
。さらに、給紙面検出信号（Ｃ）が“１′になったとき
、第一ＡＮＤ回路１１の出力（ｅ）は“０′になり、第
一ＦＦｌ３をリセソトして第一ＦＦ１３の出力（ｆ）を
′Ｏ゛ にし、モータ１９の上昇は停止させる。(2) One stop of descent Next, the second INV circuit 14 inverts the polarity of the “0” level of the ascending drive signal shown in FIG.゛ signal and
In FIG. 3, "1" of the paper feed surface detection signal TC) and the "1" which is stored by memorizing that the paper replenishment has been performed (the phantom "1" is input to the third AND circuit 24 and the logical product is taken). A signal of "1" obtained by inputting a signal whose polarity is inverted from "1" of the output (hl and replenishment completion signal (b)) to "0" in the fifth INV circuit 23b to the first OR circuit 25; The output of the second OR circuit 27 (the three outputs of the "1" signal obtained by inverting the polarity of the "0" of 0) are determined.
The signal (k) is inputted to the second AND circuit l6, and the signal (k) is obtained by performing a logical product. 3 (m) is set to ``1'' to drive the motor drive circuit 18, rotate the motor 19, and lower the supply table 22. Next, the supply table 22 is lowered and the paper feed surface detection signal (C) is sent. When becomes “0′, the fourth A
The output +1) of the ND circuit 26 changes from 'O' to 'l',
The output (1) of the second OR circuit 27 also becomes "1". Therefore, the output (k) of the second AND circuit 16 becomes "0°," and the second FF17 is reset to the output (ffl) of the second FF17.
is set to 0°, and the motor 19 stops descending. Further, the output (1) of the fourth AND circuit 26 described above changes from "O" to "1".
By becoming ``, the reset human power of the 5th FF30 is also ``
It changes from 0゛ to “1゜. Therefore, the output of the fifth FF30 (g
) changes from "1' to "0", that is, the memory of the paper replenishment ("1゛>" is cleared ("0"). (3) Rise The output of the second FF 17 (ITI) mentioned above The ゛O゛ signal of the memory release output for paper replenishment is the output t of the first AND circuit l1.
el is set to "1", the first FF 13 is set, and the motor drive circuit 18 is driven to start raising the motor 19.Furthermore, when the sheet feeding surface detection signal (C) becomes "1", The output (e) of the first AND circuit 11 becomes "0", the first FF13 is reset, the output (f) of the first FF 13 becomes 'O', and the motor 19 stops rising.
■給紙
給祇■に入り用紙の上面高さが変化すると、用紙の高さ
変化を給紙面検出センサ２０がオフすることで検出を行
い、その都度モータ１９を微動させるようにして高さを
一定に保つように微補正しながら給紙を継続してゆく。■When the top surface height of the paper changes during paper feeding, the paper feed surface detection sensor 20 detects the change in paper height by turning off, and the height is adjusted by slightly moving the motor 19 each time. Paper feeding continues while making slight corrections to keep it constant.
■補給準備
最後に、前記給紙■が終わって用紙が無くなると、オペ
レータによる用紙補給のため用紙供給装置のドアが開け
られる。この結果、補給完了信号（ｂ）は゜ｏ’ にな
り、第五ＩＮＶ回路２３ｂを介して第一ＯＲ回路２５か
らの出力は“ｌ゜ となる。よって第二ＡＮＤ回路１６
の出力［ｋ）は゜１゛になり、また第二ＦＦ１７の出力
（ｍ）も“１゛ となってモータ１９は供給台２２を下
降させて下限検出信号（ｄｌが′１゛になる最下位置に
停止する。この最下位置にて用紙の補給が行われる。な
お■補給準備が終わるとつぎの■用紙補給へと移る。(2) Preparation for Replenishment Finally, when the above-mentioned paper feeding (2) is completed and there is no more paper, the door of the paper supply device is opened by the operator to replenish the paper. As a result, the replenishment completion signal (b) becomes ゜o', and the output from the first OR circuit 25 via the fifth INV circuit 23b becomes ``l゜. Therefore, the second AND circuit 16
The output [k) of the second FF 17 becomes ``1'', and the output (m) of the second FF 17 also becomes ``1'', and the motor 19 lowers the supply platform 22 to reach the lowest limit where the lower limit detection signal (dl becomes ``1''). It stops at the lowest position. Paper is replenished at this lowest position. When the (1) replenishment preparation is completed, the process moves to the next (2) paper replenishment.
即ち、給紙準備■において、用紙補給■が終わって供給
台を上昇して停止するタイミング、及び供給台が上昇か
ら下降に転じ下降が終了したタイミング、とをそれぞれ
補給記憶回路１に記憶し、この記憶から解除までの時間
は供給面を検出しても給祇せずに一旦供給台を少し下降
させた後に上昇させるように供給台の位置制御を行い、
常に安定なる給紙を可能にしているのである。That is, in the paper feeding preparation (2), the timing at which the paper supply table is raised and stopped after the paper supply (2) is finished, and the timing at which the supply table changes from rising to lowering and finishes its descent are stored in the replenishment storage circuit 1, respectively. The time from memorization to release is determined by controlling the position of the supply table so that even if the supply surface is detected, the supply table is not fed, but is lowered a little and then raised.
This enables stable paper feeding at all times.
以上の説明から明らかなように本発明によれば、用紙補
給が終わって供給台を上昇したのち下降終了まで給紙を
停止させる時間を記憶させ、この記憶時間を用いて位置
制御を行っている。As is clear from the above description, according to the present invention, a time period during which paper feeding is stopped after the paper feeding table is raised after paper supplying is finished until the paper feeding is finished being lowered is stored, and this stored time is used to perform position control. .
この結果、安定給紙のできるようになり、紙葉類の用紙
供給装置の性能向上に貢献できる。As a result, stable paper feeding becomes possible, which contributes to improving the performance of the paper feeding device for paper sheets.
１９はモータ、 ２０は給紙面検出センサ、 ２２は供給台、 ４６はローラ、 を示す。19 is a motor, 20 is a paper feeding surface detection sensor; 22 is a supply stand; 46 is Laura, shows.
第１図は本発明による給紙動作を示す図、第２図は本発
明による一実施例の回路を示す図、第３図は本発明の回
路のタイムチャートを示す図、
第４図は用紙供給装置の構成を示す図、第５図は従来例
における給紙動作を示す図、第６図は従来例の回路を示
す図、
第７図は従来例の回路でのタイムチャートを示す図、
である。
図において、
第ｔｍ
甲珀俣殆Ｂｉり請灰告ネＴ閃
ａ♂ｊ＋＝みリ１六繭φ１Ｗ作ｅネＴ図第５図
征まσＪ／１固鉢１禾Ｔ閏
第６図FIG. 1 is a diagram showing a paper feeding operation according to the present invention, FIG. 2 is a diagram showing a circuit of an embodiment according to the present invention, FIG. 3 is a diagram showing a time chart of the circuit of the present invention, and FIG. 4 is a diagram showing a paper feeding operation according to the present invention. 5 is a diagram showing the paper feeding operation in a conventional example, FIG. 6 is a diagram showing a circuit in the conventional example, FIG. 7 is a diagram showing a time chart in the conventional circuit, It is. In the figure, No. tm Kaohamata almost Bi Risho confession T flash a ♂ j + = Miri 16 cocoon φ 1 W made e ne T diagram Figure 5 conquered σJ / 1 hard bowl 1 禾 T leap Figure 6
Claims (1)
より上下動可能に設け、上限位置の給紙面レベルに繰り
出しローラ（４６）と給紙面検出センサ（２０）とを設
け、該給紙面検出センサ（２０）のオンオフ出力により
前記モータ（１９）の上昇、停止および下降駆動を制御
するようにした用紙供給装置において、前記供給台（２
２）を下限位置から上限位置に移動する際に、前記給紙
面検出センサ（２０）のオン出力によりモータ（１９）
を上昇駆動から一旦下降駆動に切り換えると共に、該モ
ータ（１９）の下降駆動に伴う前記給紙面検出センサ（
２０）のオフ出力により再度モータ（１９）を上昇駆動
に切り換えたのち、該モータ（１９）の上昇駆動に伴う
前記給紙面検出センサ（２０）のオン出力によりモータ
（１９）を停止して上記繰り出しローラ（４６）による
給紙を開始することを特徴とする給紙面の初期停止位置
制御方式。A feeding table (22) on which paper is placed is provided so as to be movable up and down by the drive of a motor (19), and a feed roller (46) and a paper feeding surface detection sensor (20) are provided at the upper limit position of the paper feeding surface level, and a feeding roller (46) and a paper feeding surface detection sensor (20) are provided to In the paper feeding device, the raising, stopping, and lowering drive of the motor (19) is controlled by the on/off output of the detection sensor (20).
2) from the lower limit position to the upper limit position, the motor (19)
At the same time, as the motor (19) is driven downward, the sheet feeding surface detection sensor (
20), the motor (19) is switched to the upward drive again, and then the motor (19) is stopped by the on output of the sheet feeding surface detection sensor (20) accompanying the upward drive of the motor (19), and the motor (19) is stopped to perform the above operation. An initial stop position control method for a paper feeding surface, which is characterized by starting paper feeding by a feeding roller (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15507189A JPH0323120A (en) | 1989-06-16 | 1989-06-16 | Method for controlling initial stop position of fed sheet face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15507189A JPH0323120A (en) | 1989-06-16 | 1989-06-16 | Method for controlling initial stop position of fed sheet face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0323120A true JPH0323120A (en) | 1991-01-31 |
Family
ID=15598022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15507189A Pending JPH0323120A (en) | 1989-06-16 | 1989-06-16 | Method for controlling initial stop position of fed sheet face |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113208A1 (en) * | 2003-06-19 | 2004-12-29 | Gunze Limited | Apparatus and method for fetching and supplying sheet material |
| US7753366B2 (en) | 2005-05-25 | 2010-07-13 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus with sheet feeding apparatus therein |
-
1989
- 1989-06-16 JP JP15507189A patent/JPH0323120A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113208A1 (en) * | 2003-06-19 | 2004-12-29 | Gunze Limited | Apparatus and method for fetching and supplying sheet material |
| US7753366B2 (en) | 2005-05-25 | 2010-07-13 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus with sheet feeding apparatus therein |
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