JP2000191180A - Sheet feeder - Google Patents
Sheet feederInfo
- Publication number
- JP2000191180A JP2000191180A JP10366967A JP36696798A JP2000191180A JP 2000191180 A JP2000191180 A JP 2000191180A JP 10366967 A JP10366967 A JP 10366967A JP 36696798 A JP36696798 A JP 36696798A JP 2000191180 A JP2000191180 A JP 2000191180A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- paper
- remaining amount
- operation time
- placing plate
- 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
Landscapes
- Controlling Sheets Or Webs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プリンタ、複写
機、ファクシミリ等の画像形成装置に記録紙や原稿等の
用紙を供給するための用紙供給装置に関するBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper supply apparatus for supplying recording paper and originals to image forming apparatuses such as printers, copiers and facsimile machines.
【０００２】[0002]
【従来の技術】従来の用紙供給装置は、多数枚収納され
ている用紙を、送りローラにより一枚ずつ画像形成装置
の像形成手段に向けて順次自動給送するように構成され
ている。従来の用紙供給装置には、用紙の残量を検知す
る残量検知手段を設けたものがあり、その検知に基づく
用紙残量情報を用紙供給装置内または画像形成装置に設
けられた表示手段に表示するものがある。2. Description of the Related Art A conventional paper feeding apparatus is configured to automatically feed a plurality of stored papers one by one toward an image forming means of an image forming apparatus by a feed roller one by one. Some conventional paper supply devices include a remaining amount detection unit that detects the remaining amount of paper, and the remaining paper amount information based on the detection is displayed on a display unit provided in the paper supply device or in the image forming apparatus. There is something to display.
【０００３】例えば、用紙供給装置に、用紙を載置し上
下方向に回動可能な用紙載置板と、その用紙載置板に載
置された用紙の最上部に接触して送り出す送りローラ
と、用紙の最上部が送りローラに接触するまで用紙載置
板を上方に回動させる回動リフタと、回動リフタの動作
に連動して軸を中心に回転する残量検知手段とを設け、
図６に示すように、軸２０を中心に回動リフタの動作に
連動して回転する残量検知手段２１の２つの突起部２１
ａ，２１ｂが所定位置に設けられた２つのスイッチＳＷ
１，ＳＷ２を通過する際にのみＯＮするような構成と
し、図７に示すように、各スイッチＳＷ１，ＳＷ２のＯ
Ｎ，ＯＦＦ状態で４段階の用紙残量を検知し、その用紙
残量情報を表示部に表示するものがある（特開平１０−
２７４８６９号公報参照）。あるいは、用紙載置板の移
動する経路に沿って複数の検知スイッチを設けて残量検
知するものがある。[0003] For example, a paper loading plate on which a paper is loaded and rotatable in the vertical direction is placed on a paper feeding device, and a feed roller which comes out of contact with the uppermost portion of the paper loaded on the paper loading plate is provided. A rotating lifter that rotates the paper mounting plate upward until the top of the paper contacts the feed roller, and a remaining amount detecting unit that rotates about an axis in conjunction with the operation of the rotating lifter,
As shown in FIG. 6, two protrusions 21 of the remaining amount detecting means 21 that rotate in association with the operation of the rotary lifter about the shaft 20.
a and 21b are provided at predetermined positions.
1 and SW2, and is turned on only when passing through the switches SW1 and SW2, as shown in FIG.
In some cases, four levels of remaining paper are detected in the N and OFF states, and the remaining paper information is displayed on a display unit (Japanese Patent Laid-Open No.
274869). Alternatively, there is a type in which a plurality of detection switches are provided along a moving path of the sheet mounting plate to detect the remaining amount.
【０００４】[0004]
【発明が解決しようとする課題】ところが、従来の残量
検知手段では、所定範囲内（例えば、図７の０〜２５％
の範囲内）のおおまかな残量検知しかできず、突起部と
スイッチの数を増やしたり、検知スイッチ数を増やした
としても、より細かくかつ正確な残量検知をすることが
できないという問題があった。However, in the conventional remaining amount detecting means, a predetermined range (for example, 0 to 25% in FIG. 7) is used.
(Within the range), there is a problem that even if the number of protrusions and switches is increased, or even if the number of detection switches is increased, it is not possible to detect the remaining amount more finely and accurately. Was.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記問題に鑑
みてなされたものであり、用紙を載置し上下方向に回動
可能な用紙載置板と、該用紙載置板上の用紙の最上部に
接触して送り出す送りローラと、前記用紙載置板を最適
位置まで上方に回動させる回動リフタと、前記回動リフ
タの動作時間に基づいて用紙残量を検知する検知手段
と、前記検知手段が検知した用紙残量情報を内部または
外部の表示手段に送信する送信手段とを具備した用紙供
給装置としたものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in view of the above circumstances. A feed roller that feeds out the sheet in contact with the uppermost portion thereof, a rotary lifter that rotates the paper mounting plate upward to an optimum position, and a detecting unit that detects a remaining amount of paper based on an operation time of the rotary lifter. And a transmitting means for transmitting the remaining paper amount information detected by the detecting means to an internal or external display means.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施例を図面を用
いて説明する。図１は、プリンタ本体の下側に接続さ
れ、プリンタ本体の底面開口部に用紙を供給する用紙供
給装置を示し、用紙載置板１、用紙切れ検知手段２、送
りローラ３、送りローラ位置検知手段４、回動リフタ
５、基本クロック生成手段６、検知手段７、記憶手段
８、送信手段９、制御手段１０を有してなる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a paper supply device connected to the lower side of the printer main body and supplying paper to an opening at the bottom of the printer main body. The paper mounting plate 1, paper out detecting means 2, feed roller 3, feed roller position detection It comprises means 4, a rotary lifter 5, a basic clock generation means 6, a detection means 7, a storage means 8, a transmission means 9, and a control means 10.
【０００７】用紙載置板１は、用紙を載置する板であ
り、図面上の左端を支点として右端が上下方向に回動可
能である。送りローラ３は、上下方向に移動可能に構成
して用紙載置板１に載置された用紙の最上部に接触し、
図面上の反時計方向に回転することで最上部の用紙１枚
のみを右側に送り出すローラであり、送りローラ３で送
り出された用紙はプリンタ本体の像形成手段まで搬送さ
れる。送りローラ位置検知手段４は、送りローラ３が最
も給紙条件の良い位置であるか否かを検知する手段であ
り、例えば、送りローラ３が好ましい位置となった場合
に（例えば、下流の搬送路に搬送するのに最適な位置と
なった場合に）、スイッチがＯＮとなりＨｉｇｈ信号を
制御手段１０に送信するような手段であればよい。な
お、送りローラ３が常に所定位置にあるような構成の場
合には、送りローラ位置検知手段４は、用紙載置板１上
に載置される用紙が送りローラ３に最適な接触圧で接触
する位置を検知するようにすればよい。回動リフタ５
は、用紙載置板１を上方に回動させる構成であればどの
ような構成でもよく、回動の動作時間を制御手段１０に
送信する。回動リフタ５の回動は、送りローラ位置検知
手段４で送りローラ３が好ましい位置になったことを検
知するまで行う。用紙切れ検知手段２は、載置された用
紙残量が少なくなるにつれて用紙載置板１が上昇してい
くが、用紙が無くなった時に用紙載置板１が到達する位
置に設けて用紙切れを検知する手段であればよく、例え
ば、用紙載置板１により押圧されるとスイッチがＯＮと
なりＨｉｇｈ信号を制御手段１０に送信するような手段
であればよい。クロック発生手段６は、水晶発振器等の
発振器を基に図２に示すような基本クロックを生成する
手段である。記憶手段８は、用紙載置板１の最下方位置
から現在の位置まで回動させるために回動リフタ５が動
作した時間を累積して記憶する手段であり、用紙供給装
置の電源ＯＦＦ時でも動作時間を記憶しておき、電源Ｏ
Ｎ後の動作時間を記憶している動作時間に加算するよう
にして記憶する。The paper placing plate 1 is a plate on which the paper is placed, and the right end thereof can be turned up and down with the left end in the drawing as a fulcrum. The feed roller 3 is configured to be movable in the up and down direction and contacts the uppermost portion of the sheet placed on the sheet placing plate 1,
The roller is a roller that feeds only the uppermost sheet to the right by rotating in the counterclockwise direction in the drawing, and the sheet sent by the feed roller 3 is conveyed to the image forming means of the printer main body. The feed roller position detecting means 4 is a means for detecting whether or not the feed roller 3 is at a position where the sheet feeding condition is the best, and, for example, when the feed roller 3 is at a preferable position (for example, when the downstream transfer is performed). Any means may be used as long as the switch is turned on and a High signal is transmitted to the control means 10 (when the position is optimal for transporting to the road). In the case where the feed roller 3 is always at a predetermined position, the feed roller position detecting means 4 contacts the sheet placed on the sheet placing plate 1 with the feed roller 3 at an optimum contact pressure. What is necessary is just to detect the position where it performs. Rotating lifter 5
Any configuration may be used as long as the paper mounting plate 1 is rotated upward, and the rotation operation time is transmitted to the control unit 10. The rotation of the rotary lifter 5 is continued until the feed roller position detecting means 4 detects that the feed roller 3 has reached a preferable position. The paper-out detecting means 2 raises the paper-mounting plate 1 as the remaining amount of the mounted paper decreases, but the paper-out detecting device 2 is provided at a position where the paper-mounting plate 1 reaches when the paper runs out, and detects the paper out. Any means may be used as long as it is a means for detecting, for example, a means for turning on the switch when pressed by the paper placing plate 1 and transmitting a High signal to the control means 10. The clock generating means 6 is a means for generating a basic clock as shown in FIG. 2 based on an oscillator such as a crystal oscillator. The storage unit 8 is a unit that accumulates and stores the time that the rotary lifter 5 has been operated to rotate from the lowermost position of the paper placing plate 1 to the current position. The operating time is stored and the power
The operation time after N is added to the stored operation time and stored.
【０００８】検知手段７は、記憶手段８で記憶している
回動リフタ５の累積した動作時間に基づいて用紙残量を
検出する手段である。具体的には、図２に示すように、
回動リフタ５が動作している時のクロック発生手段６の
クロック数をカウントし、その累積カウント数に基づい
て用紙残量の検出をするようにすればよい。図３に示す
ように、累積した動作時間が長いということは、クロッ
クのカウント数が多いということであり、用紙載置板１
に載置された用紙残量が少なくて用紙載置板１の傾斜角
度が大きいということであり、逆に累積した動作時間が
短いということは、クロックのカウント数が少ないとい
うことであり、用紙載置板１に載置された用紙残量が多
くて用紙載置板１の傾斜角度が小さいということであ
る。よって、クロックのカウント数と用紙残量とに関連
性があるために、図４に示すようなデータを記憶手段８
に記憶させおくことにより、検知手段７がカウント数か
ら細かくかつ正確な用紙残量を検知することができる。The detecting means 7 detects the remaining amount of paper based on the accumulated operation time of the rotary lifter 5 stored in the storage means 8. Specifically, as shown in FIG.
The number of clocks of the clock generator 6 when the rotating lifter 5 is operating may be counted, and the remaining amount of paper may be detected based on the accumulated count. As shown in FIG. 3, a long accumulated operation time means that the number of clocks is large, and the
Means that the remaining amount of paper placed on the paper mounting plate 1 is small and the inclination angle of the paper mounting plate 1 is large, and that the accumulated operating time is short means that the clock count is small, That is, the remaining amount of the paper placed on the mounting plate 1 is large and the inclination angle of the paper mounting plate 1 is small. Therefore, since there is a relationship between the clock count and the remaining amount of paper, data as shown in FIG.
, The detecting means 7 can accurately and accurately detect the remaining amount of paper from the count number.
【０００９】送信手段９は、検知手段７が検知した用紙
残量情報を用紙供給装置内や画像形成装置等に設けられ
た表示手段に送信する手段である。制御手段１０は、用
紙供給装置全体を制御する手段である。The transmitting means 9 is a means for transmitting the information on the amount of remaining paper detected by the detecting means 7 to a display means provided in the paper supply apparatus, the image forming apparatus or the like. The control unit 10 is a unit that controls the entire sheet supply device.
【００１０】本発明では、検知手段７で回動リフタ５の
動作時間、より具体的には回動リフタ５の動作時のクロ
ック発生手段６のクロックのカウント数から用紙残量を
検知するようにしたことにより、細かくかつ正確な用紙
残量検知を行うことができるようになる。なお、本実施
例では、細かく用紙残量が検知できるために、用紙切れ
検知手段２を設けずに検知手段７のみによっても用紙残
量が０％の時を検知することができる。In the present invention, the detection means 7 detects the remaining amount of paper from the operation time of the rotary lifter 5, more specifically, the count number of the clock of the clock generating means 6 when the rotary lifter 5 operates. As a result, fine and accurate detection of the remaining amount of paper can be performed. In this embodiment, since the remaining amount of paper can be finely detected, the time when the remaining amount of paper is 0% can be detected only by the detection unit 7 without providing the out-of-paper detection unit 2.
【００１１】また、用紙残量を表示する表示手段を用紙
供給装置内や画像形成装置等に設ければよいが、用紙供
給装置を装着または接続した画像形成装置をネットワー
ク環境等でホストコンピュータやパソコン（以下、情報
処理装置）により遠隔操作する場合には、情報処理装置
の画面を表示手段として用いることが好ましい。従来
は、情報処理装置側から用紙供給装置内の用紙残量を確
認することができないために、画像形成装置が置いてあ
る場所まで行き、画像形成装置や用紙供給装置の用紙残
量表示部を確認したり、用紙トレイを引き出して直接確
認したりしなければならないために非常に不便であった
が、情報処理装置の画面を表示手段として用いることに
より、その場で用紙残量を容易かつ迅速に知ることがで
きるようになる。The display means for displaying the remaining amount of paper may be provided in the paper supply apparatus or in the image forming apparatus. The image forming apparatus equipped with or connected to the paper supply apparatus may be connected to a host computer or a personal computer in a network environment or the like. (Hereinafter, information processing device), it is preferable to use the screen of the information processing device as a display means. Conventionally, since it is impossible to confirm the remaining amount of paper in the paper supply device from the information processing device side, the user goes to the place where the image forming apparatus is placed, and displays the remaining paper amount display portion of the image forming device or the paper supply device. This was very inconvenient because the user had to check the information and directly check it by pulling out the paper tray.However, by using the screen of the information processing device as a display means, the user can easily and quickly check the remaining amount of paper on the spot. Will be able to know.
【００１２】また、電源ＯＮ後に記憶手段８に記憶して
いる累積動作時間が所定時間を超えると、電源ＯＮ前に
記憶していた動作時間を累積動作時間から削除すること
がより好ましい。より具体的には、電源ＯＮ後に回動リ
フタ５の動作時のクロック発生手段６のクロックのカウ
ント数が所定数を超えると、電源ＯＮ前に記憶していた
カウント数を累積動作時間から削除することがより好ま
しい。If the accumulated operation time stored in the storage means 8 after the power is turned on exceeds a predetermined time, it is more preferable to delete the operation time stored before the power was turned on from the accumulated operation time. More specifically, when the clock count of the clock generating means 6 during the operation of the rotary lifter 5 after the power is turned on exceeds a predetermined number, the count stored before the power is turned on is deleted from the accumulated operation time. Is more preferable.
【００１３】以下、図５に示すフローチャートを用いて
説明する。Ｎは、記憶手段８に記憶されている用紙載置
板１の最下方位置から現在の位置まで回動させるために
回動リフタ５が動作した時間を累積して記憶している累
積動作時間である。Ｘは、用紙載置板１の最下方位置か
ら用紙切れ検知手段２に到達するのに要する時間（＝所
定時間）である。Ｍは、電源ＯＮ後に回動リフタ５が動
作した時間である。Ｌは、判定用信号で、０または１の
信号となる。Hereinafter, a description will be given with reference to a flowchart shown in FIG. N is an accumulated operation time in which the time when the rotary lifter 5 is operated to rotate from the lowermost position of the sheet placing plate 1 stored in the storage means 8 to the current position is stored. is there. X is the time (= predetermined time) required to reach the paper-out detecting means 2 from the lowermost position of the paper mounting plate 1. M is a time during which the rotary lifter 5 operates after the power is turned on. L is a determination signal, which is a signal of 0 or 1.
【００１４】電源投入される、すなわち電源ＯＮされる
（ステップ１）と、電源ＯＮ前に記憶手段８に記憶して
いる累積動作時間をＮ、Ｍ＝０、Ｌ＝０とし（ステップ
２）、送りローラ位置検知手段４が最適な位置にあるか
否かを判定する（ステップ３）。When the power is turned on, that is, when the power is turned on (step 1), the accumulated operation times stored in the storage means 8 before the power is turned on are set to N, M = 0, and L = 0 (step 2). It is determined whether or not the feed roller position detecting means 4 is at an optimum position (step 3).
【００１５】送りローラ３が最適な位置、すなわち最も
給紙条件の良い位置でない場合には、Ｍの時間計時を開
始し（ステップ４）、回動リフタ５の回動を行い（ステ
ップ５）、Ｎに動作時間を累積していき（ステップ
６）、Ｍ＜Ｘか否かを判定する（ステップ７）。If the feed roller 3 is not at the optimum position, that is, not at the position where the sheet feeding condition is the best, the timing of M is started (step 4), and the rotary lifter 5 is rotated (step 5). The operation time is accumulated in N (step 6), and it is determined whether M <X (step 7).
【００１６】Ｍ＜Ｘの場合は、ステップ３に戻り、Ｍ≧
Ｘの場合は、電源ＯＦＦ時に用紙載置板１を用紙供給装
置から抜き出して用紙の追加等をしたために用紙載置板
１が下方に移動していたこととなり、電源ＯＮ前に記憶
していた動作時間の削除処理をする必要があるために、
Ｌ＝１とし（ステップ８）、Ｍ＝０とした（ステップ
９）後に、ステップ３に進む。If M <X, the process returns to step 3 and M ≧
In the case of X, since the paper placing plate 1 was pulled out of the paper supply device when the power was turned off and the paper was added, the paper placing plate 1 was moved downward, and the information was stored before the power was turned on. Because it is necessary to delete the operation time,
After setting L = 1 (step 8) and setting M = 0 (step 9), the process proceeds to step 3.
【００１７】ステップ３で送り位置ローラ位置検知手段
４が最適な位置にあると判定した場合、あるいはＬ＝１
となった場合で、回動リフトが回動している場合には回
動をストップし（ステップ１０）、Ｌ＝０か否かを判定
する（ステップ１１）。If it is determined in step 3 that the feed position roller position detecting means 4 is at the optimum position, or if L = 1
When the rotation lift is rotating, the rotation is stopped (step 10), and it is determined whether or not L = 0 (step 11).
【００１８】Ｌ＝０の場合は、電源ＯＮ前の累積動作時
間に電源ＯＮ後の動作時間を加算した時間をＮとし（ス
テップ１２）、Ｌ＝１の場合は、電源ＯＮ前の累積動作
時間を削除して電源ＯＮ後の動作時間をＮとし（ステッ
プ１３）、その動作時間に基づき検知手段７で用紙残量
検知を行う（ステップ１４）。When L = 0, the time obtained by adding the operation time after power-on to the cumulative operation time before power-on is set to N (step 12), and when L = 1, the accumulated operation time before power-on Is deleted, and the operation time after the power is turned on is set to N (Step 13), and the remaining amount of paper is detected by the detecting means 7 based on the operation time (Step 14).
【００１９】送信手段９は表示手段に、用紙残量０の場
合にはエンプティー表示をするような信号を送信し（ス
テップ１５）、用紙がある場合には動作時間に応じた用
紙残量情報を送信する（ステップ１６）。The transmitting means 9 transmits to the display means a signal for displaying an empty display when the remaining amount of paper is 0 (step 15). Send it (step 16).
【００２０】なお、電源ＯＮ時に用紙載置板１を抜き出
して用紙の追加等をしたために用紙載置板１が下方に移
動した場合でも図５のフローチャートと同様な処理がで
きるようにしてもよく、その際は用紙載置板１が下方に
移動する前までの累積動作時間をリセットするようにす
ればよい。It should be noted that the same processing as in the flowchart of FIG. 5 may be performed even when the paper mounting plate 1 is moved downward due to the paper mounting plate 1 being pulled out and the paper being added when the power is turned on. In this case, the accumulated operation time before the paper placing plate 1 moves downward may be reset.
【００２１】[0021]
【発明の効果】以上説明したように、本発明の用紙供給
装置によれば、回動リフタの動作時間に基づいて用紙残
量を検知することにより、具体的には回動リフタの動作
中のクロック数をカウントしてカウント数により用紙残
量の検知することによって、簡単な構成で細かくかつ正
確な残量検知をする用紙供給装置を提供することができ
る。As described above, according to the paper supply apparatus of the present invention, by detecting the remaining amount of paper based on the operation time of the rotary lifter, specifically, during the operation of the rotary lifter, By counting the number of clocks and detecting the remaining amount of paper based on the counted number, it is possible to provide a paper supply device that performs a fine and accurate remaining amount detection with a simple configuration.
【図１】本発明の用紙供給装置を示す構成図である。FIG. 1 is a configuration diagram showing a paper supply device of the present invention.
【図２】本発明のクロックと回動リフタの関係を示す図
である。FIG. 2 is a diagram illustrating a relationship between a clock and a rotary lifter according to the present invention.
【図３】本発明の２つの用紙残量時の用紙載置板状態を
示す図である。FIG. 3 is a diagram illustrating a state of a sheet placement plate when two sheets are remaining according to the present invention.
【図４】本発明の用紙載置板、カウント数、用紙残量の
関係を示す図である。FIG. 4 is a diagram illustrating a relationship between a sheet placement plate, a count number, and a remaining amount of sheets according to the present invention.
【図５】本発明の動作を示すフローチャートである。FIG. 5 is a flowchart showing the operation of the present invention.
【図６】従来の残量検知手段を示す図である。FIG. 6 is a diagram showing a conventional remaining amount detection unit.
【図７】従来の残量検知手段による用紙残量の検知方法
を示す図である。FIG. 7 is a diagram illustrating a method of detecting the remaining amount of paper by a conventional remaining amount detecting unit.
１：用紙載置板 ２：用紙切れ検知手段 ３：送りローラ ４：送りローラ位置検知手段 ５：回動リフタ ６：基本クロック生成手段 ７：検知手段 ８：記憶手段 ９：送信手段 １０：制御手段 1: Paper loading plate 2: Out-of-paper detecting means 3: Feeding roller 4: Feeding roller position detecting means 5: Rotating lifter 6: Basic clock generating means 7: Detecting means 8: Storage means 9: Transmitting means 10: Control means
Claims (3)
置板と、該用紙載置板上の用紙の最上部に接触して送り
出す送りローラと、前記用紙載置板を最適位置まで上方
に回動させる回動リフタと、前記回動リフタの動作時間
に基づいて用紙残量を検知する検知手段と、前記検知手
段が検知した用紙残量情報を内部または外部の表示手段
に送信する送信手段とを具備したことを特徴とする用紙
供給装置。A sheet mounting plate on which a sheet is placed and which can be rotated in a vertical direction; a feed roller which feeds out the sheet on the sheet mounting plate in contact with an uppermost portion; A rotating lifter that rotates upward to a position, a detecting unit that detects a remaining amount of paper based on an operation time of the rotating lifter, and a paper remaining amount information detected by the detecting unit to an internal or external display unit. A sheet supply device, comprising: a transmission unit for transmitting.
手段を具備し、前記検知手段は、前記回動リフタの動作
中のクロック数をカウントし、該カウント数により用紙
残量の検知を行うことを特徴とする請求項１記載の用紙
供給装置。2. The apparatus according to claim 1, further comprising clock generation means for generating a regular clock, wherein said detection means counts the number of clocks during operation of said rotary lifter, and detects the remaining amount of paper based on said count. The sheet supply device according to claim 1, wherein:
して電源オフ時にも保持する記憶手段を具備し、電源オ
ン後に前記累積動作時間が所定時間を超えると、電源オ
ン前に記憶していた動作時間を累積動作時間から削除す
ることを特徴とする請求項１記載の用紙供給装置。3. A storage means for accumulating and storing the operation time of the rotary lift and holding it even when the power is turned off, and if the accumulated operation time exceeds a predetermined time after the power is turned on, it is stored before the power is turned on. 2. The sheet supply device according to claim 1, wherein the operation time is deleted from the accumulated operation time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366967A JP2000191180A (en) | 1998-12-24 | 1998-12-24 | Sheet feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366967A JP2000191180A (en) | 1998-12-24 | 1998-12-24 | Sheet feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000191180A true JP2000191180A (en) | 2000-07-11 |
Family
ID=18488144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10366967A Pending JP2000191180A (en) | 1998-12-24 | 1998-12-24 | Sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000191180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015224094A (en) * | 2014-05-26 | 2015-12-14 | キヤノン株式会社 | Sheet feeding device and image formation device |
-
1998
- 1998-12-24 JP JP10366967A patent/JP2000191180A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015224094A (en) * | 2014-05-26 | 2015-12-14 | キヤノン株式会社 | Sheet feeding device and image formation device |
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