JPH0264684A - Discarded toner recovering device - Google Patents
Discarded toner recovering deviceInfo
- Publication number
- JPH0264684A JPH0264684A JP21750688A JP21750688A JPH0264684A JP H0264684 A JPH0264684 A JP H0264684A JP 21750688 A JP21750688 A JP 21750688A JP 21750688 A JP21750688 A JP 21750688A JP H0264684 A JPH0264684 A JP H0264684A
- Authority
- JP
- Japan
- Prior art keywords
- carrying members
- coupling member
- toner
- rotation
- waste toner
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 239000011354 acetal resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Cleaning In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、ノンインパクトプリンタや複写機等電子写真
記録装置に用いる廃トナー回収装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a waste toner recovery device used in electrophotographic recording devices such as non-impact printers and copying machines.
［従来の技術］
従来の廃トナー回収装置は第５図に示すような構造であ
った。第３図に示す廃トナー回収装置において、４１が
感光ドラムであり、紙への転写工程終了後の残トナーが
付着している。この残トナー４３はクリーニングブレー
ド４２により第１回収ボックス４４内にかき落される。[Prior Art] A conventional waste toner recovery device has a structure as shown in FIG. In the waste toner recovery device shown in FIG. 3, numeral 41 is a photosensitive drum, to which residual toner after the transfer process to paper is attached. This remaining toner 43 is scraped off into the first collection box 44 by the cleaning blade 42.
続いて、搬送部材４５にて搬送され、開口部を経て第２
回収ボックス４６まで運ばれる。次に、搬送部材４７に
て矢印方向へ徐々に搬送され堆積し回収トナー４Ｂとな
る。最後に、この回収トナーが満杯検出器４９０弾性膜
を圧迫し、外部にある接点迄変位させ、満杯信号を出さ
せ、メカ体の駆動を停止させる。Subsequently, it is transported by the transport member 45 and passed through the opening to the second
It is carried to the collection box 46. Next, the toner is gradually conveyed in the direction of the arrow by the conveying member 47 and accumulated to become collected toner 4B. Finally, this recovered toner presses the elastic membrane of the full detector 490, displacing it to the external contact point, outputting a full signal, and stopping the drive of the mechanical body.
［発明が解決しようとする課！］
しかし、かかる従来技術による廃トナー回収装置ヤは、
低温環境下で前記弾性膜の弾性係数が変わったり、前記
接点位置精度が悪い時、満杯信号出力タイミングが遅れ
てしまう。従って、このような廃トナーボックスでは、
回収トナーが溢れてしまったり、回収トナーにより負荷
が上がり搬送部材を損失させる。また、極度の高負荷状
態になると、駆動モーターまで損失させるという問題点
を有していた。[The problem that the invention attempts to solve! ] However, the waste toner collection device according to the prior art is
When the elastic coefficient of the elastic membrane changes in a low-temperature environment or when the contact position accuracy is poor, the full signal output timing is delayed. Therefore, in such a waste toner box,
The recovered toner may overflow, or the load may increase due to the recovered toner, causing loss of the conveying member. Furthermore, when the load becomes extremely high, there is a problem in that even the drive motor is lost.
そこで、本発明は上記の問題点を解決するものであり、
満杯検出精度を向上でき、また回収トナーによる負荷を
駆動系へ伝えない廃トナー回収装置を提供することを目
的とする。Therefore, the present invention solves the above problems,
It is an object of the present invention to provide a waste toner collecting device that can improve fullness detection accuracy and that does not transmit load caused by collected toner to a drive system.
［課題を解決するための手段］
本発明の廃トナー回収装置は、搬送部材と回転駆動伝達
軸との間に、負荷トルクが増大した時伝達が遮断される
構造のカップリング部材を有することを特徴とする。[Means for Solving the Problems] The waste toner recovery device of the present invention has a coupling member between the conveyance member and the rotational drive transmission shaft, which is structured to cut off transmission when load torque increases. Features.
また、前記搬送部材の軸を回収ボックス外に延長し、突
起付リングを取り付けたことを特徴とする。Moreover, the shaft of the conveying member is extended outside the collection box, and a ring with a protrusion is attached thereto.
［作用コ
本発明は以上のような構成を有するので、回収トナー量
がある値迄達すると搬送部材の回転負荷が増大する。こ
の状態になると、カップリング部材が駆動軸の回転を搬
送部材に伝達せず、搬送部材の回転が停止する。従って
搬送部材の回転負荷がモーター等の負担とならない。[Operations] Since the present invention has the above-described configuration, when the amount of collected toner reaches a certain value, the rotational load on the conveying member increases. In this state, the coupling member does not transmit the rotation of the drive shaft to the conveying member, and the rotation of the conveying member stops. Therefore, the rotational load of the conveying member does not become a burden on the motor or the like.
また搬送部材の回転が停止するため、この搬送部材と同
期して回転していた突起物も回転が停止する。従って、
この突起の回転を検出していた検出器が検出を停止し、
満杯信号を出方する。Further, since the rotation of the conveying member is stopped, the protrusion that was rotating in synchronization with the conveying member also stops rotating. Therefore,
The detector that was detecting the rotation of this protrusion stopped detecting it, and
Give a full signal.
［実施例コ
以下に本発明の実施例を図面に基づいて説明する。′第
１図は本発明の廃トナー回収装置の概略図である。１１
は感光ドラムであり、紙への転写工程終了後の残トナー
が付着している。この残トナーはクリーニングブレード
１２により第１回収ボックス１４内にかき落される。続
いて、搬送部材１５にて開口部１８の方向へ搬送され、
開口部を経て第２回収ボックス１６まで運ばれる。次に
、搬送部材１７にて矢印方向へ徐々に搬送され堆積し回
収トナー１９となる。[Embodiments] Examples of the present invention will be described below based on the drawings. 'FIG. 1 is a schematic diagram of the waste toner recovery device of the present invention. 11
is a photosensitive drum, on which residual toner adheres after the transfer process to paper is completed. This remaining toner is scraped off into the first collection box 14 by the cleaning blade 12. Subsequently, it is transported in the direction of the opening 18 by the transport member 15,
It is transported to the second collection box 16 through the opening. Next, the toner is gradually conveyed in the direction of the arrow by the conveying member 17 and accumulated to become collected toner 19 .
前記搬送部材はアセタール樹脂やＡＢＳ樹脂等プラスチ
ック成形品で、軸径５φでラセン形状になっている。ラ
センのピッチ（山間距離）は１５關である。この搬送部
材は前記第２回収ボックス外に延びていて、２１の駆動
ギイヤの駆動を伝える駆動伝達軸２２とカップリング部
材２０にて連結され回転駆動を受けている。カップリン
グ部材は金属又はアセタール樹脂等プラスチックで、駆
動伝達軸及び搬送部材と結合される部材を通し穴があけ
られている。駆動伝達軸との結合部材はスプリングビン
を用いる。また、搬送部材との結合部材は第２図に示す
ようなものである。結合部材５１はカップリング部材３
２の一部とテーバ−状の部分で結合しており、また搬送
部材５３との結合部分はある一定の負荷で折れる細軸で
結合している。しかし、これは−例にすぎず、ある一定
の負荷で折れて、カップリング部材と搬送部材の結合を
解くピンで良い。The conveying member is a plastic molded product such as acetal resin or ABS resin, and has a helical shape with a shaft diameter of 5φ. The pitch of the spiral (distance between mountains) is 15 steps. This conveyance member extends outside the second collection box, and is connected to a drive transmission shaft 22 that transmits the drive of a drive gear 21 through a coupling member 20, and receives rotational drive. The coupling member is made of metal or plastic such as acetal resin, and has a hole through which the member to be coupled with the drive transmission shaft and the conveying member passes. A spring pin is used as a connecting member to the drive transmission shaft. Further, the connecting member with the conveying member is as shown in FIG. The coupling member 51 is the coupling member 3
2 by a tapered portion, and the portion to be connected to the conveying member 53 is connected by a thin shaft that breaks under a certain load. However, this is just an example, and a pin that breaks under a certain load and releases the connection between the coupling member and the conveying member may be used.
前記回収トナーが前記第２回収ボックス内でほぼ満杯に
なり、搬送部材が回収トナーによる負荷を受けると、前
記駆動伝達軸の回転力で結合部材３１が折れて、搬送部
材１７０回転が停止する。When the collected toner becomes almost full in the second collection box and the conveyance member receives a load from the collected toner, the coupling member 31 is broken by the rotational force of the drive transmission shaft, and the rotation of the conveyance member 170 is stopped.
従って、搬送部材と結合している突起付リング２５の回
転も停止するため、ホトセンサーはロー又はハイレベル
のままとなり、回転中の周期的なロー・ハイの繰り返し
モードと異なる。このモード変化を検出し、満杯信号を
出力して駆動モータを停止する。突起付リングはポリプ
ロピレン等ノ成形品であり、搬送部材とはスプリングビ
ンで固定する。Therefore, since the rotation of the protruding ring 25 coupled to the conveyance member also stops, the photosensor remains at a low or high level, which is different from the periodic low/high repeat mode during rotation. This mode change is detected and a full signal is output to stop the drive motor. The ring with protrusions is a molded product of polypropylene or the like, and is fixed to the conveying member with a spring pin.
このような構成の廃トナー回収装置で、トナー回収試験
を行った結果、トナー充填率（トナー重ｆｋ？／第２回
収ポック容量ｄ）が約６０％、駆動伝達軸での負荷約４
００５’、、’ｍで前記結合部材が折れ、搬送部材の回
転が停止した。また直後、駆動モーターも停止した。As a result of a toner recovery test conducted using a waste toner recovery device with such a configuration, the toner filling rate (toner weight fk?/second recovery pock capacity d) was approximately 60%, and the load on the drive transmission shaft was approximately 4.
At 005', .'m, the coupling member broke and the rotation of the conveying member stopped. Immediately after, the drive motor also stopped.
［発明の効果］
本発明の廃トナー回収装置は、以上説明したように、負
荷トルクが増大した時搬送部材の回転を停止させるカッ
プリング部材を使用したことにより、駆動モータ等駆動
系の損失を容易に防ぐ効果がある。[Effects of the Invention] As explained above, the waste toner recovery device of the present invention uses a coupling member that stops the rotation of the conveyance member when the load torque increases, thereby reducing loss in the drive system such as the drive motor. It is easily preventable.
また、搬送部材と同時に停止する突起付リングを取υ付
けたことにより、駆動モータ等信の機能を直ちに停止で
き、回収トナーの溢れによる汚染を防ぐ効果がある。Further, by installing a ring with a protrusion that stops at the same time as the conveyance member, the functions of the drive motor, etc. can be immediately stopped, and there is an effect of preventing contamination due to overflow of collected toner.
第１図は、本発明の廃トナー回収装置の概略図第２図は
、搬送部材とカップリング部材との結合部材の概略図。
第３図は、従来の廃トナー回収装置の概略図。
１１・・・・・・・・・感光ドラム
１１酒己もドラム
／
第１図
３２ｈｙフ・リング考ｐ欣
３呼合秤脳
第２図
２・・・・・・・・・クリーニンクフレード５・・・・
・・・・・トナー
４・・・・・・・・・第１回収ボックス５・・・・・・
・・・搬送部材
６・・・・・・・・・第２回収ボックス７・・・・・・
・・・搬送部材
８・・・・・・・・・開口部
９・・・・・・・・・回収トナー
０・・・・・・・・・カップリング部材１・・・・・・
・・・駆動ギイヤ
２・・・・・・・・・駆動伝達軸
３・・・・・・・・・突起付リング
４・・・・・−・・・ホトセンサーFIG. 1 is a schematic diagram of a waste toner recovery device of the present invention. FIG. 2 is a schematic diagram of a connecting member between a conveying member and a coupling member. FIG. 3 is a schematic diagram of a conventional waste toner collection device. 11・・・・・・・・・Photosensitive drum 11 Drinking drum / Fig.1・・・・・・
...Toner 4...First collection box 5...
...Conveyance member 6...Second collection box 7...
...Conveyance member 8...Opening 9...Recovered toner 0...Coupling member 1...
... Drive gear 2 ... Drive transmission shaft 3 ...... Ring with protrusion 4 ... Photo sensor
Claims (2)
ングされ、かき落されたトナーを回収するために、回収
ボックス内にラセン軸形状の搬送部材を持つ廃トナー回
収装置において、前記搬送部材と回転駆動伝達軸との間
に、負荷トルクが増大した時伝達が遮断される構造のカ
ップリング部材を有することを特徴とする廃トナー回収
装置。(1) In a waste toner collection device that has a helical shaft-shaped transport member in a collection box in order to collect toner that has been cleaned and scraped off in the cleaning step of an electrophotographic process, the transport member and a rotational drive transmission shaft are provided. A waste toner recovery device comprising a coupling member configured to cut off transmission when load torque increases.
、突起付リングを取り付けたことを特徴とする請求項１
記載の廃トナー回収装置。(2) Claim 1 characterized in that the shaft of the conveying member is extended outside the collection box and a ring with a protrusion is attached thereto.
The waste toner collection device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21750688A JPH0264684A (en) | 1988-08-31 | 1988-08-31 | Discarded toner recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21750688A JPH0264684A (en) | 1988-08-31 | 1988-08-31 | Discarded toner recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264684A true JPH0264684A (en) | 1990-03-05 |
Family
ID=16705302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21750688A Pending JPH0264684A (en) | 1988-08-31 | 1988-08-31 | Discarded toner recovering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264684A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04109284A (en) * | 1990-08-29 | 1992-04-10 | Sharp Corp | Toner recovering device for image forming mechanism |
| JP2008299067A (en) * | 2007-05-31 | 2008-12-11 | Konica Minolta Business Technologies Inc | Toner recovery container and image forming apparatus equipped with the same |
| US7660541B2 (en) | 2007-06-22 | 2010-02-09 | Konica Minolta Business Technologies, Inc. | Image formation apparatus utilizing density of waste toner to detect amount thereof |
| US7881626B2 (en) | 2007-06-22 | 2011-02-01 | Konica Minolta Business Technologies, Inc. | Image formation apparatus utilizing density of waste toner to detect amount thereof |
| US8600246B2 (en) | 2010-06-25 | 2013-12-03 | Sharp Kabushiki Kaisha | Developer recovery device and image forming apparatus including same |
| JP2017072804A (en) * | 2015-10-09 | 2017-04-13 | シャープ株式会社 | Waste toner detection mechanism and image forming apparatus |
-
1988
- 1988-08-31 JP JP21750688A patent/JPH0264684A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04109284A (en) * | 1990-08-29 | 1992-04-10 | Sharp Corp | Toner recovering device for image forming mechanism |
| JP2008299067A (en) * | 2007-05-31 | 2008-12-11 | Konica Minolta Business Technologies Inc | Toner recovery container and image forming apparatus equipped with the same |
| US7660541B2 (en) | 2007-06-22 | 2010-02-09 | Konica Minolta Business Technologies, Inc. | Image formation apparatus utilizing density of waste toner to detect amount thereof |
| US7881626B2 (en) | 2007-06-22 | 2011-02-01 | Konica Minolta Business Technologies, Inc. | Image formation apparatus utilizing density of waste toner to detect amount thereof |
| US8600246B2 (en) | 2010-06-25 | 2013-12-03 | Sharp Kabushiki Kaisha | Developer recovery device and image forming apparatus including same |
| JP2017072804A (en) * | 2015-10-09 | 2017-04-13 | シャープ株式会社 | Waste toner detection mechanism and image forming apparatus |
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