JPH0524517B2 - - Google Patents
Info
- Publication number
- JPH0524517B2 JPH0524517B2 JP16417887A JP16417887A JPH0524517B2 JP H0524517 B2 JPH0524517 B2 JP H0524517B2 JP 16417887 A JP16417887 A JP 16417887A JP 16417887 A JP16417887 A JP 16417887A JP H0524517 B2 JPH0524517 B2 JP H0524517B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- carrier
- support
- magnetic body
- supply device
- 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.)
- Expired - Fee Related
Links
- 238000007664 blowing Methods 0.000 claims description 15
- 238000007790 scraping Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複写機の現像剤として使用されるト
ナー付きキヤリアからトナーを、例えばトナーの
帯電量分布測定装置などに供給する装置、詳しく
は、トナー付きキヤリアを磁力により吸着する支
持体、その支持体に吸着されたキヤリアにトナー
を吹飛ばすガスを噴出するノズル、及び、そのノ
ズルからのガスで吹飛ばされたトナーを回収する
手段を設けたトナー供給装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for supplying toner from a toner-bearing carrier used as a developer in a copying machine to, for example, a toner charge distribution measuring device; , a support that magnetically attracts the carrier with toner, a nozzle that ejects gas that blows the toner off the carrier that is attracted to the support, and a means for collecting the toner that has been blown off by the gas from the nozzle. The present invention relates to a toner supply device.
従来、第４図に示すように、磁石１３ａと鋼線
１３ｂから成る支持体１３を固定し、鋼線１３ｂ
に磁力で吸着させた一定量のトナー付きキヤリア
２にノズル１４からのガスを吹付け、キヤリア２
から吹飛ばされたトナー７を回収手段としての吸
込管１５に気流搬送するように構成していた〔例
えば特開昭57−79958号公報参照〕。
Conventionally, as shown in FIG. 4, a support body 13 consisting of a magnet 13a and a steel wire 13b is fixed,
The gas from the nozzle 14 is sprayed onto the carrier 2 with a certain amount of toner that is magnetically attracted to the carrier 2.
The toner 7 blown away from the toner 7 is transported by airflow to a suction pipe 15 serving as a recovery means (see, for example, Japanese Patent Application Laid-open No. 79958/1983).
しかし、一定量のキヤリア２を支持体１３に吸
着させているため、長時間にわたつて連続的にト
ナー７を供給することは不可能であり、また、精
度の良い定量供給を継続することは不可能である
欠点があつた。
However, since a fixed amount of the carrier 2 is adsorbed onto the support 13, it is impossible to continuously supply the toner 7 over a long period of time, and it is difficult to continue supplying the toner 7 with high precision in a fixed quantity. The drawback was that it was impossible.
本発明の目的は、長時間にわたるトナーの連続
供給及び精度良好なトナーの定量供給を行えるよ
うにする点にある。 An object of the present invention is to enable continuous supply of toner over a long period of time and quantitative supply of toner with good accuracy.
本発明の特徴構成は、トナー付きキヤリアを磁
力により吸着する支持体にトナー付きキヤリアを
連続供給するフイーダを設け、前記フイーダによ
り供給されたトナー付きキヤリアを前記ノズルに
よるトナー吹飛ばし部に搬送する状態で前記支持
体を回転自在に取付け、前記トナー吹飛ばし部か
ら前記支持体の回転で搬送されてくるキヤリアを
掻取るスクレーパを設けたことにあり、その作用
効果は次の通りである。
The characteristic configuration of the present invention is that a feeder is provided for continuously supplying the carrier with toner to a support that magnetically attracts the carrier with toner, and the carrier with toner supplied by the feeder is conveyed to a toner blowing section by the nozzle. The support is rotatably mounted, and a scraper is provided for scraping the carrier conveyed from the toner blowing section by the rotation of the support, and its effects are as follows.
つまり、支持体を駆動装置又は人為操作でほぼ
定速回転させると、フイーダから支持体にトナー
付きキヤリアがほぼ一定量ずつ連続供給され、支
持体にその回転方向に連なつて吸着されたトナー
付きキヤリアがノズルによるトナー吹飛ばし部に
ほぼ一定量ずつ連続供給され、したがつて、ノズ
ルによる吹飛ばし作用でトナー回収手段にトナー
を連続供給できると共に精度良好に定量供給でき
る。
In other words, when the support is rotated at an almost constant speed by a drive device or by manual operation, carriers with toner are continuously supplied from the feeder to the support in an almost constant amount, and the carriers with toner are adsorbed to the support in a continuous direction in the direction of rotation. The carrier is continuously supplied in a substantially constant amount to the toner blowing section by the nozzle, so that the toner can be continuously supplied to the toner collecting means by the blowing action of the nozzle, and can be supplied in a fixed quantity with good accuracy.
さらに、トナー吹飛ばし部からのキヤリアがス
クレーパにより支持体から掻取られるから、フイ
ーダによるトナー付きキヤリア供給部では支持体
のキヤリア吸着面にキヤリアが残つていず、フイ
ーダから支持体への定量供給機能を、支持体の回
転数を多くしても良好に維持でき、したがつて、
長時間にわたるトナーの連続供給を定量性を良好
に維持したまま実現できる。 Furthermore, since the carrier from the toner blowing section is scraped off from the support by the scraper, no carrier remains on the carrier adsorption surface of the support in the carrier supply section with toner by the feeder, and a fixed amount of carrier is supplied from the feeder to the support. The function can be maintained well even when the number of rotations of the support is increased, and therefore,
It is possible to continuously supply toner over a long period of time while maintaining good quantitative performance.
その結果、従来では不可能であつたトナーの長
時間にわたる連続供給及び精度良好な定量供給が
可能な、トナー供給性能が一段と優れたトナー供
給装置を提供できるようになつた。
As a result, it has become possible to provide a toner supply device with even better toner supply performance, which is capable of continuous supply of toner over a long period of time and accurate quantitative supply of toner, which was previously impossible.
殊に、トナーの帯電量分布測定においてデータ
を長時間にわたつて連続的に採集計測し、測定精
度を向上するに有用である。 In particular, it is useful for continuously collecting and measuring data over a long period of time in measuring the charge amount distribution of toner and improving measurement accuracy.
次に、第１図及び第２図により実施例を示す。 Next, an example will be shown with reference to FIGS. 1 and 2.
リング状の磁性体１ａと、その内部に固定配置
した扇形状の電磁石１ｂによつて、トナー付きキ
ヤリア２を磁力により吸着する支持体１を形成
し、磁性体１ａを軸受部３に回転自在に取付け、
磁性体１ａを一定速度で回転させるモータＭと減
速機４を設け、電磁石１ｂに磁力を発生させる電
磁コイル５を設けてある。尚、磁性体１ａの両側
にリング状の非磁性体１６ａ，１６ｂを一体回転
するように取付けてある。キヤリア２は鉄粉など
の磁性材から成つている。 A ring-shaped magnetic body 1a and a fan-shaped electromagnet 1b fixedly arranged inside the ring-shaped magnetic body 1a form a support body 1 that magnetically attracts the carrier 2 with toner, and the magnetic body 1a is rotatably attached to the bearing part 3. installation,
A motor M and a speed reducer 4 are provided to rotate the magnetic body 1a at a constant speed, and an electromagnetic coil 5 is provided to generate magnetic force in the electromagnet 1b. Incidentally, ring-shaped non-magnetic bodies 16a and 16b are attached to both sides of the magnetic body 1a so as to rotate together. The carrier 2 is made of a magnetic material such as iron powder.
磁性体１ａの外周面にローレツト加工したキヤ
リア吸着面Ｓを全周にわたつて形成し、ホツパー
部６ａと自重流下式ガイド管部６ｂから成るフイ
ーダ６を設け、フイーダ６からキヤリア吸着面Ｓ
にトナー付きキヤリア２を磁性体１ａの回転に伴
つて定量的に連続供給するように構成してある。 A knurled carrier suction surface S is formed on the outer peripheral surface of the magnetic body 1a over the entire circumference, and a feeder 6 consisting of a hopper part 6a and a gravity-flowing type guide pipe part 6b is provided, and the carrier suction surface S is formed from the feeder 6.
The carrier 2 with toner is continuously supplied quantitatively as the magnetic body 1a rotates.
磁性体１ａの回転に伴つてキヤリア吸着面Ｓに
吸着されて定量的に連続供給されるトナー付きキ
ヤリア２に、ブロワB1からの空気、N2などのガ
スを吹付けてトナー７を吹飛ばすノズル８を設
け、ノズル８によるトナー吹飛ばし部Ｘに臨ませ
て、ブロワB2による吸引管９ａに受器９ｂを接
続して成るトナー回収手段９を設け、トナーの帯
電量分布測定装置１０を吸引管９ａに接続してあ
る。 The toner 7 is blown away by blowing gas such as air or N 2 from the blower B 1 onto the carrier 2 with toner, which is attracted to the carrier attraction surface S as the magnetic body 1a rotates and is continuously supplied quantitatively. A nozzle 8 is provided, a toner collecting means 9 is provided facing the toner blowing part It is connected to the suction pipe 9a.
つまり、ノズル８からのガスでトナー７だけを
吹飛ばして、吹飛ばされたトナー７を気流搬送に
よりトナー回収手段９から帯電量分布測定装置１
０に定量的に連続供給し、良好な複写を得る上で
重要な要素となるトナー粒子の帯電量分布を精度
良く測定できるように構成してある。 That is, only the toner 7 is blown away by the gas from the nozzle 8, and the blown toner 7 is transferred from the toner collecting means 9 to the charge amount distribution measuring device 1 by air conveyance.
The toner particles are continuously supplied quantitatively to the toner particles, and the toner particle charge distribution, which is an important factor in obtaining good copies, can be measured with high precision.
磁性体１ａの回転に伴つて、トナー吹飛ばし部
Ｘから搬送されてくるキヤリア２を掻取るスクレ
ーパ１１、及び、スクレーパ１１から落下するキ
ヤリア２を回収する容器１２を設け、フイーダ６
によるキヤリア付きトナー供給部Ｙに向かうキヤ
リア吸着面Ｓにはキヤリア２が残らないように構
成してある。 A scraper 11 for scraping the carrier 2 conveyed from the toner blowing section X as the magnetic body 1a rotates, and a container 12 for collecting the carrier 2 falling from the scraper 11 are provided.
The carrier 2 is configured so that no carrier 2 remains on the carrier suction surface S facing the toner supply section Y with carrier.
扇形状の電磁石１ｂを磁性体１ａに対して、キ
ヤリア付きトナー供給部Ｙからトナー吹飛ばし部
Ｘにわたつて接近すると共に、スクレーパ１１に
よるキヤリア掻取部Ｚで離間するように配置し、
磁性体１ａへのトナー付きキヤリア供給、トナー
吹飛ばし部Ｘへのトナー付きキヤリア搬送、及
び、トナー吹飛ばし部Ｘでのキヤリア吸着保持を
強力な磁力で確実に行えると共に、スクレーパ１
１によるキヤリア掻取りを磁力低下で確実に行え
るように構成してある。 A fan-shaped electromagnet 1b is arranged so as to approach the magnetic body 1a from a toner supply section Y with a carrier to a toner blowing section X, and to be separated by a carrier scraping section Z by a scraper 11;
The supply of the carrier with toner to the magnetic body 1a, the conveyance of the carrier with toner to the toner blowing part X, and the suction and holding of the carrier in the toner blowing part
The structure is such that the carrier scraping according to No. 1 can be performed reliably by reducing the magnetic force.
次に、別実施例を説明する。 Next, another embodiment will be described.
支持体１の具体構造は適当に変更でき、例えば
次のようにできる。 The specific structure of the support 1 can be changed appropriately, for example, as follows.
(イ) 電磁石１ｂに代えて永久磁石を設ける。(a) A permanent magnet is provided in place of the electromagnet 1b.
(ロ) 磁性体１ａを省略して、磁石１ｂにキヤリア
吸着面Ｓを形成し、磁石１ｂを回転自在に取付
ける。(b) The magnetic body 1a is omitted, the carrier attraction surface S is formed on the magnet 1b, and the magnet 1b is rotatably attached.
(ハ) 第３図に示すように、磁石１ｂや磁性体１ａ
の回転端面にキヤリア吸着面Ｓを形成する。(c) As shown in Figure 3, the magnet 1b and the magnetic body 1a
A carrier suction surface S is formed on the rotating end surface of the carrier.
(ニ) 支持体１の回転軸心を縦向き、横向き、斜め
向きなど適当に選定する。(d) Select the rotational axis of the support 1 as appropriate, such as vertically, horizontally, or diagonally.
(ホ) 磁石１ｂや磁性体１ａを平板構造や薄板積層
構造などに形成する。(e) The magnet 1b and the magnetic body 1a are formed into a flat plate structure, a laminated thin plate structure, or the like.
(ヘ) キヤリア吸着面Ｓにキヤリア保持確実化のた
めに施したローレツト加工の模様を適当に変更
したり、あるいは、ローレツト加工を省略す
る。(F) Appropriately change the knurling pattern applied to the carrier suction surface S to ensure carrier retention, or omit the knurling.
フイーダ６は構造、供給方式、その他において
適当に変更でき、例えば強制搬送手段を備えても
よい。 The structure, feeding method, etc. of the feeder 6 can be changed as appropriate, and for example, it may be provided with forced conveyance means.
ノズル８は構造、設置数、向き、その他におい
て適当に変更可能であり、また、ノズル８に対す
る給気手段も適宜変更自在である。 The structure, number of nozzles, orientation, etc., of the nozzles 8 can be changed as appropriate, and the air supply means for the nozzles 8 can also be changed as appropriate.
吹飛ばされたトナー７の回収手段９は具体構成
において適当に変更でき、また、その回収手段９
によるトナー供給対象や供給方式も適宜変更自在
である。 The collecting means 9 for the blown toner 7 can be changed appropriately in its specific configuration, and the collecting means 9
The toner supply target and supply method can also be changed as appropriate.
スクレーパ１１の具体構成は適当に変更でき、
また、スクレーパ１１で掻取つたキヤリア２の回
収手段も適宜変更自在である。 The specific configuration of the scraper 11 can be changed as appropriate.
Furthermore, the means for recovering the carrier 2 scraped by the scraper 11 can be changed as appropriate.
尚、特許請求の範囲の項に図面との対照を便利
にする為に符号を記すが、該記入により本発明は
添付図面の構造に限定されるものではない。 Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
第１図及び第２図は本発明の実施例を示し、第
１図は斜視図、第２図は水平断面図である。第３
図は本発明の別実施例を示す斜視図である。第４
図は従来例の要部図である。
１……支持体、１ａ……磁性体、１ｂ……磁
石、２……キヤリア、６……フイーダ、７……ト
ナー、８……ノズル、９……トナー回収手段、１
１……スクレーパ、Ｓ……キヤリア吸着面、Ｘ…
…トナー吹飛ばし部、Ｙ……トナー付きキヤリア
供給部、Ｚ……キヤリア掻取部。
1 and 2 show an embodiment of the present invention, with FIG. 1 being a perspective view and FIG. 2 being a horizontal sectional view. Third
The figure is a perspective view showing another embodiment of the present invention. Fourth
The figure is a diagram of the main parts of a conventional example. DESCRIPTION OF SYMBOLS 1... Support body, 1a... Magnetic body, 1b... Magnet, 2... Carrier, 6... Feeder, 7... Toner, 8... Nozzle, 9... Toner collection means, 1
1...Scraper, S...Carrier suction surface, X...
...Toner blowing section, Y...Carrier supply section with toner, Z...Carrier scraping section.
Claims (1)
支持体１、その支持体１に吸着されたキヤリア２
にトナー７を吹飛ばすガスを噴出するノズル８、
及び、そのノズル８からのガスで吹飛ばされたト
ナー７を回収する手段９を設けたトナー供給装置
であつて、前記支持体１にトナー付きキヤリア２
を連続供給するフイーダ６を設け、前記フイーダ
６により供給されたトナー付きキヤリア２を前記
ノズル８によるトナー吹飛ばし部Ｘに搬送する状
態で前記支持体１を回転自在に取付け、前記トナ
ー吹飛ばし部Ｘから前記支持体１の回転で搬送さ
れてくるキヤリア２を掻取るスクレーパ１１を設
けてあるトナー供給装置。 ２ 前記支持体１を形成するに、キヤリア吸着面
Ｓを形成する磁性体１ａを回転自在に取付けると
共に、その磁性体１ａに磁力を付与する磁石１ｂ
を固定し、前記磁性体１ａと磁石１ｂを、前記フ
イーダ６によるトナー付きキヤリア供給部Ｙから
前記トナー吹き飛ばし部Ｘにわたつて互いに接近
し、かつ、前記スクレーパ１１によるキヤリア掻
取り部Ｚで互いに離間するように相対配置してあ
る特許請求の範囲第１項に記載のトナー供給装
置。[Claims] 1. A support 1 that magnetically attracts a carrier 2 with toner, and a carrier 2 that is attracted to the support 1.
a nozzle 8 that spouts gas that blows away the toner 7;
The toner supply device is provided with a means 9 for collecting the toner 7 blown away by the gas from the nozzle 8, and the toner supply device is provided with a carrier 2 with toner on the support 1.
A feeder 6 for continuously supplying toner is provided, and the support body 1 is rotatably mounted in a state in which the carrier 2 with toner supplied by the feeder 6 is conveyed to the toner blowing section X by the nozzle 8, and the toner blowing section The toner supply device is provided with a scraper 11 for scraping off the carrier 2 conveyed from X by the rotation of the support 1. 2. To form the support 1, a magnetic body 1a forming the carrier attraction surface S is rotatably attached, and a magnet 1b is attached to provide magnetic force to the magnetic body 1a.
are fixed, and the magnetic body 1a and the magnet 1b are brought close to each other from the carrier supply section Y with toner by the feeder 6 to the toner blowing section X, and are separated from each other at the carrier scraping section Z by the scraper 11. The toner supply device according to claim 1, wherein the toner supply device is arranged relative to each other so as to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16417887A JPS649482A (en) | 1987-07-01 | 1987-07-01 | Toner feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16417887A JPS649482A (en) | 1987-07-01 | 1987-07-01 | Toner feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS649482A JPS649482A (en) | 1989-01-12 |
| JPH0524517B2 true JPH0524517B2 (en) | 1993-04-08 |
Family
ID=15788198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16417887A Granted JPS649482A (en) | 1987-07-01 | 1987-07-01 | Toner feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS649482A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6163303B2 (en) * | 2012-12-27 | 2017-07-12 | ホソカワミクロン株式会社 | Particle supply apparatus and particle charge amount measuring apparatus having the same |
| US12000642B2 (en) | 2021-06-24 | 2024-06-04 | Electrolux Home Products, Inc. | Appliance with ice packer |
-
1987
- 1987-07-01 JP JP16417887A patent/JPS649482A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS649482A (en) | 1989-01-12 |
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|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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