JPS59194971A - Sheet tray - Google Patents
Sheet trayInfo
- Publication number
- JPS59194971A JPS59194971A JP58070593A JP7059383A JPS59194971A JP S59194971 A JPS59194971 A JP S59194971A JP 58070593 A JP58070593 A JP 58070593A JP 7059383 A JP7059383 A JP 7059383A JP S59194971 A JPS59194971 A JP S59194971A
- Authority
- JP
- Japan
- Prior art keywords
- tray
- pressure sensor
- paper
- pressure
- copying machine
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/06—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, completion of pile
Landscapes
- Controlling Sheets Or Webs (AREA)
- Pile Receivers (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、複写機・マイクロ機器等の画像形成装置から
排出される画像形成済みのシートを受けるシートトレイ
に関するものである。詳細には、シートトレイ上に所定
量以上のシートが積載されたことを警告する機能を備え
たシートトレイに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet tray that receives sheets on which images have been formed and which are discharged from an image forming apparatus such as a copying machine or a micro device. Specifically, the present invention relates to a sheet tray that has a function to warn that a predetermined amount or more of sheets are stacked on the sheet tray.
以下、複写機に用いられる排紙トレイを例にあげて説明
する。Hereinafter, a paper discharge tray used in a copying machine will be explained as an example.
一般に、複写機においては、複写排紙された転写紙を積
載する排紙トレイがある。これらの排紙トレイは軽量・
安価にするために樹脂等でできている。また、これらの
排紙トレイは複写機本体から取外せる構造になっている
ので、排紙（レイの一部を複写機本体に引っかけ保持し
た構造のものが多い。そのため排紙トレイの積載量がそ
の強度により限定され、その強度を越えて転写紙が積載
された場合には、排紙トレイが破損するということが考
えられる。2. Description of the Related Art Generally, a copying machine has a paper discharge tray on which transfer paper after copying and discharge is stacked. These paper output trays are lightweight and
It is made of resin etc. to keep it cheap. In addition, these paper output trays have a structure that allows them to be removed from the copying machine main body, so many of them have a structure in which a part of the paper ejection tray is hooked onto the copying machine main body. It is limited by its strength, and if transfer paper is stacked beyond that strength, it is conceivable that the paper ejection tray will be damaged.
本発明は、上述従来例の問題点を解消するシートトレイ
を提供するものである。The present invention provides a sheet tray that solves the problems of the conventional example described above.
以下９図面を用いて本発明の一実施例を説明する。An embodiment of the present invention will be described below using nine drawings.
第１図（＆）は複写機の排紙部の概略的な側面図。FIG. 1 (&) is a schematic side view of the paper discharge section of the copying machine.
する排紙トレイ、２は排紙トレイの重量を検知する圧力
センサで、トレイ１に当接してその下方で第１図（ｂ）
に示す通りトレイ１の中央よシやや手前（操作者側）に
設けられている。６および４は転写紙を複写機Ｃ内より
排紙トレイ１に排紙する排紙ローラである。なお１１ａ
１２は搬送ローラである。またこのトレイ１は、その先
端１１Ｌを複写機Ｃの本体側凹部Ｃ＆に嵌合して取付け
る。そこでトレイ１に転写紙が積載されると、底部１ｂ
の部分に圧がかかる。またセンサ２の設置位ｔｌｄ、前
述位置に限らず、両端に１個ずつ設置する等適宜配置す
れば良い。The paper output tray 2 is a pressure sensor that detects the weight of the paper output tray.
As shown in the figure, it is provided slightly in front of the center of tray 1 (on the operator's side). Reference numerals 6 and 4 are paper discharge rollers for discharging transfer paper from the copying machine C to the paper discharge tray 1. Note 11a
12 is a conveyance roller. Further, this tray 1 is attached by fitting its leading end 11L into a recess C& on the main body side of the copying machine C. Then, when the transfer paper is loaded on tray 1, the bottom 1b
Pressure is applied to the area. Further, the installation position tld of the sensor 2 is not limited to the above-mentioned position, but may be appropriately placed, such as installing one at each end.
第２図は圧力センサ２の構造部を示しており、５−１−
５−２・６−１−６−２はストレンゲージで、圧力が加
わっていないときの抵抗値は各々６−１−６−２は圧力
が加わると抵抗値が、圧力が加わっていないときに比べ
大きくなるものである０
さて次に排紙）レイ１の重量を検知−警告表示する回路
を第５図に示す。Figure 2 shows the structure of the pressure sensor 2, and shows 5-1-
5-2 and 6-1-6-2 are strain gauges, and the resistance value when no pressure is applied is the resistance value when no pressure is applied. 6-1-6-2 is the resistance value when pressure is applied, and the resistance value is when no pressure is applied. Figure 5 shows a circuit for detecting and displaying a warning for the weight of Ray 1 (discharged paper).
図示回路は、圧力センサ２をブリッジ型に接続したもの
で、圧力センサ２は加えられた圧力に応じた電圧を発生
し、オペアンプ７は圧力センサ２の出力電圧を増幅する
。この増幅された電圧はコンパレータ８により、可変抵
抗９により設定された電圧（ｖｌ）と比較され、この電
圧（ｖＴ）よ）モ小さいときコンパレータ８の出力電圧
はＨｔｇｈ（ｖｓｓ）となり、ＬＥＤｌＱに電流が流れ
ないため、ＬＥＤｌｏは点灯しない。一方、オペアンプ
８により増幅された圧力センサ２の出力電圧が可変抵抗
９Ｖｃより設定された電圧（■ア）よシも大きくなると
、コンパレータ８の出力電圧はＬｏｗ（ＧＮＤ）となり
、ＬＥＩ）１０に電流が流れ、Ｌｌに積載された状態で
のオペアンプ７の出力電圧と等しく可変抵抗９を設定す
れば、ある規定量を越えた転写紙が排紙トレイ１に積載
されると、ＬＥＤｌ ０が点灯し、排紙トレイの積載超
過を表示警告することができる。In the illustrated circuit, the pressure sensor 2 is connected in a bridge type, and the pressure sensor 2 generates a voltage according to the applied pressure, and the operational amplifier 7 amplifies the output voltage of the pressure sensor 2. This amplified voltage is compared with the voltage (vl) set by the variable resistor 9 by the comparator 8, and when this voltage (vT) is smaller, the output voltage of the comparator 8 becomes Htgh (vss), and the current flows into the LEDlQ. does not flow, so LEDlo does not light up. On the other hand, when the output voltage of the pressure sensor 2 amplified by the operational amplifier 8 becomes higher than the voltage (■A) set by the variable resistor 9Vc, the output voltage of the comparator 8 becomes Low (GND), and the current flows into the LEI) 10. If the variable resistor 9 is set equal to the output voltage of the operational amplifier 7 when the transfer paper is loaded on Ll, then when more than a certain amount of transfer paper is loaded on the paper output tray 1, LEDl 0 will light up. , it is possible to display a warning when the paper output tray is overloaded.
以上、本実施例における、排紙トレイ上の転写紙の積載
量を検知し、これを表示警告する装置の動作説明を行っ
たが、上記説明においては、単に積載超過を表示警告す
るだけであるため、もし排紙トレイ上の転写紙が除去さ
れないまｔｖＩ写が続けられると排紙トレイが損傷する
恐れがある。したがって、これを防止するため、積載超
過になった場合に排紙トレイ上の転写紙が除去されるま
での間、複写ができないようにしても良い。The operation of the device in this embodiment that detects the amount of transfer paper loaded on the paper output tray and displays and warns about it has been explained above.In the above explanation, however, the device merely displays and warns that the paper is overloaded. Therefore, if tvI copying is continued until the transfer paper on the paper ejection tray is removed, the ejection tray may be damaged. Therefore, in order to prevent this, copying may be disabled until the transfer paper on the paper discharge tray is removed when the paper is overloaded.
なお本実施例では、警告表示する手段としてランプの点
灯により警告する例を示したが、本発明はこれに限らず
例えばブザー等による警告でも良いこと勿論である。ま
た、シート受は部としては、例えばプラスチック等の弾
性材で形成して、積載シー艷の重量に応じて受は部自体
がしなり、圧力センサー等の圧力手段に作用するように
しても良いこと勿論である。In this embodiment, an example is shown in which a warning is given by lighting a lamp as a warning display means, but the present invention is not limited to this, and it goes without saying that a warning by a buzzer or the like may be used. Further, the seat holder may be made of an elastic material such as plastic, so that the holder itself bends depending on the weight of the loaded sea barge and acts on a pressure means such as a pressure sensor. Of course.
以上説明したように１本発明によれば排出されたシー（
が所定量以上積載されることにより、）レイが損傷する
ことを防止することが可能となる。As explained above, according to the present invention, the discharged sea (
By loading a predetermined amount or more of ), it is possible to prevent damage to the )ray.
第１図（ａ）は複写機の排紙部の概略的な側面図。
第１図（ｂ）は排紙）レイの平面図、第２図は圧力セン
サの構造図、第６図は圧力センナによる検知０図
警告表示回路にある。
図において、
１・・・・・排紙トレイ、２φ・・１１−圧力センサ。
７−・・・・オペアンプ、８・・・・噛コンパレータ。
９１１・・・ｅ可変抵抗、１０・・・・・ＬＥＤであう
。FIG. 1(a) is a schematic side view of the paper discharge section of the copying machine. FIG. 1(b) is a plan view of the paper discharge tray, FIG. 2 is a structural diagram of the pressure sensor, and FIG. 6 is a detection zero warning display circuit by the pressure sensor. In the figure, 1...paper discharge tray, 2φ...11-pressure sensor. 7-... operational amplifier, 8... bite comparator. 911...e variable resistor, 10...LED.
Claims (1)
。 排出されたシートを受けるシート受は部と。 該シート受は部上に受けられたシートの重量を検知する
検知手段と。 該検知手段により検知される重量に応じて警告表示する
手段とを有することを特徴とするシーシトレイ。(1) In a sheet tray that receives ejected sheets. The sheet holder that receives the ejected sheet is the part. The sheet receiver includes a detection means for detecting the weight of the sheet received on the portion. A shish tray characterized by having means for displaying a warning according to the weight detected by the detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58070593A JPS59194971A (en) | 1983-04-20 | 1983-04-20 | Sheet tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58070593A JPS59194971A (en) | 1983-04-20 | 1983-04-20 | Sheet tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59194971A true JPS59194971A (en) | 1984-11-05 |
Family
ID=13436005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58070593A Pending JPS59194971A (en) | 1983-04-20 | 1983-04-20 | Sheet tray |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59194971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157450A (en) * | 1989-11-21 | 1992-10-20 | Hyundai Electronics Inc. Co., Ltd. | Apparatus for reversely turning copied sheets for a copying machine |
-
1983
- 1983-04-20 JP JP58070593A patent/JPS59194971A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157450A (en) * | 1989-11-21 | 1992-10-20 | Hyundai Electronics Inc. Co., Ltd. | Apparatus for reversely turning copied sheets for a copying machine |
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