JPS647662B2 - - Google Patents
Info
- Publication number
- JPS647662B2 JPS647662B2 JP55184642A JP18464280A JPS647662B2 JP S647662 B2 JPS647662 B2 JP S647662B2 JP 55184642 A JP55184642 A JP 55184642A JP 18464280 A JP18464280 A JP 18464280A JP S647662 B2 JPS647662 B2 JP S647662B2
- Authority
- JP
- Japan
- Prior art keywords
- developing
- developer supply
- toner
- developer
- roller
- 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
Links
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0805—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a brush
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (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、現像剤供給装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a developer supply device.
非磁性一成分トナーを弾性ブレードで層厚規制
して供給する方法は、特開昭54−43038号公報に
あるように基本的に知られている。
A method of supplying non-magnetic monocomponent toner by regulating the layer thickness using an elastic blade is basically known as disclosed in Japanese Patent Laid-Open No. 54-43038.
ところが、非磁性一成分トナーが十分な帯電を
している場合は安定した搬送条件を満たすもの
の、非磁性一成分トナーが収容されたホツパー内
からこぼれ落ちるという不都合が発生した。 However, although stable conveyance conditions are satisfied when the non-magnetic mono-component toner is sufficiently charged, there is a problem in that the non-magnetic mono-component toner spills out of the hopper containing the toner.
本発明は、非磁性一成分トナーの上記問題を解
決した現像剤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 developer supply device that solves the above-mentioned problems with non-magnetic single-component toner.
本発明は非磁性一成分トナーを担持して移動す
る現像剤供給部材と、該現像剤供給部材の表面に
先端を除く面が圧接しているトナー層厚規制部材
とを有し、さらに上記現像剤供給部材に非磁性一
成分トナーを供給するためのホツパーに一端が固
定され、他端を除く面が上記現像剤供給部材に圧
接しているトナーこぼれ落ち防止板をホツパー内
部へ上記現像剤供給部材が進入する側に有するこ
とを特徴とする現像剤供給装置である。
The present invention includes a developer supplying member that moves while carrying non-magnetic monocomponent toner, and a toner layer thickness regulating member whose surface, excluding the tip, is in pressure contact with the surface of the developer supplying member, and further includes: A toner spill prevention plate, which has one end fixed to a hopper for supplying non-magnetic one-component toner to the developer supply member, and whose surface other than the other end is in pressure contact with the developer supply member, is inserted into the hopper into the developer supply member. The developer supply device is characterized in that the developer supply device is provided on the side where the developer enters.
以下、図面に基づいて本発明の実施例を詳細に
説明する。
Embodiments of the present invention will be described in detail below based on the drawings.
第１図は本発明が適用される現像装置の構成図
であり、吸湿性の少ない高分子材料を主たる材料
として形成された糸からなる現像ブラシを用いた
静電潜像の現像装置を示している。 FIG. 1 is a block diagram of a developing device to which the present invention is applied, and shows an electrostatic latent image developing device using a developing brush made of thread mainly made of a polymeric material with low hygroscopicity. There is.
第１図において、１は円筒状の静電潜像の保持
体である。静電潜像は例えば公知の電子写真法で
あるカールソン法又は特公昭42−23910号、同43
−24948号公報等に記載のNP法等によつて感光
体１上に形成される。現像剤供給手段であるホツ
パー２内に絶縁性非磁性現像剤３（以下トナーと
も称す）がある。この現像剤３は、現像ブラシの
支持体である現像ローラ４の表面を静電植毛によ
り覆つた現像ブラシ５に、現像剤の量を規制して
塗布する塗布部材６によつて塗布される。現像ロ
ーラ４は紙筒や合成樹脂の円筒でもよいが、これ
ら円筒の表面を導電処理するか、アルミニウム・
真ちゆう・ステンレス鋼等の導電体で形成する
と、現像電極ローラとして用いることができる。
７はこの現像電極ローラ４と感光体１との間に現
像バイアス電圧を印加する電源である。 In FIG. 1, 1 is a cylindrical electrostatic latent image holder. The electrostatic latent image can be produced using, for example, the Carlson method, which is a known electrophotographic method, or Japanese Patent Publication No. 42-23910, No. 43.
It is formed on the photoreceptor 1 by the NP method described in Japanese Patent No. 24948 and the like. An insulating non-magnetic developer 3 (hereinafter also referred to as toner) is located in a hopper 2 which is a developer supply means. The developer 3 is applied to a developing brush 5, which has a surface of a developing roller 4, which is a support of the developing brush, covered with electrostatic flocking, by an application member 6 that applies the developer in a controlled amount. The developing roller 4 may be a paper tube or a cylinder made of synthetic resin, but the surface of these cylinders may be treated with conductivity, or aluminum or aluminum may be used.
When made of a conductive material such as brass or stainless steel, it can be used as a developing electrode roller.
A power source 7 applies a developing bias voltage between the developing electrode roller 4 and the photoreceptor 1.
現像電極ローラ４の表面に繊維を静電植毛し
て、現像ブラシ５を形成する方法は、公知の静電
植毛の方法を使用すればよい。この方法は、例え
ば、先ず適当な長さに切断した短い繊維をNaCl，
BaCl2，Na2SiO3などの無機塩類や界面活性剤を
含む溶液中に浸漬した後、乾燥させて短繊維の電
気抵抗を低下させて電着処理した短繊維を使用す
る。次にこの電着処理した短繊維をふるいにか
け、電極板上にばらまき、この電極板から現像電
極ローラ４を離して対向配置し、電極板と軸方向
に回転する現像電極ローラ４との間に高電圧を印
加して短繊維を表面に接着剤が塗布された現像電
極ローラ４上に飛翔させて植毛する方法である。 A known electrostatic flocking method may be used to form the developing brush 5 by electrostatically flocking fibers onto the surface of the developing electrode roller 4. In this method, for example, first, short fibers cut to an appropriate length are soaked in NaCl.
Short fibers are used that have been immersed in a solution containing inorganic salts such as BaCl 2 and Na 2 SiO 3 and surfactants, dried to lower the electrical resistance of the short fibers, and then subjected to electrodeposition treatment. Next, the electrodeposited short fibers are sieved and scattered on an electrode plate, and a developing electrode roller 4 is placed facing away from the electrode plate, and is placed between the electrode plate and the developing electrode roller 4 rotating in the axial direction. This is a method of flocking by applying a high voltage to cause the short fibers to fly onto the developing electrode roller 4 whose surface is coated with an adhesive.
このように、静電植毛により現像ブラシを形成
すると、ローラ４全周に亘つて継目のない無端状
ブラシが作れるので、現像後の顕画像に筋むらが
生じない。またブラシの毛の密度を高く均一にで
きるので、木目が細かく、濃度むらのない良質の
画像が得られる。 When the developing brush is formed by electrostatic flocking in this way, an endless brush without a seam can be created over the entire circumference of the roller 4, so that streaks will not occur in the developed image. Also, since the brush bristles can be made highly dense and uniform, it is possible to obtain high-quality images with fine grains and even density.
本発明において使用する現像剤３は前述の如く
絶縁性非磁性であるが、本発明では導電性現像剤
も用いることができる。この場合絶縁処理を施し
た紙などを用いれば転写を行うことができる。 Although the developer 3 used in the present invention is insulating and nonmagnetic as described above, a conductive developer can also be used in the present invention. In this case, the transfer can be performed using paper or the like that has been subjected to insulation treatment.
現像時は少なくとも感光体１に現像ブラシ５を
接触させて現像する。この際、感光体１と現像ブ
ラシ５（又は現像電極ローラ４）とは現像部にお
いて同方向に移動させて現像するが、相対速度を
それ程ずらさない範囲内で現像する方が良画質が
得られる。さらには、相対速度が零即ち等速で移
動させる方がむらが出ないので好ましい。また現
像する際には潜像保持体１の裏面側にある電極の
電位と現像電極ローラ４又は現像ブラシ５の裏面
との電位は同電位でも良いが、必ずしも同電位に
する必要はなく、適当な抵抗又は例えば100pFの
静電容量を有するコンデンサーを上記電極間に入
れて電気的に浮かしても良い。電気的に適当に浮
かすことは例えば感光体１上の潜像電位の変動に
よる現像への影響を比較的少なくする効果があ
る。 During development, the developing brush 5 is brought into contact with at least the photoreceptor 1 for development. At this time, the photoreceptor 1 and the developing brush 5 (or the developing electrode roller 4) are moved in the same direction in the developing section for development, but better image quality can be obtained by developing within a range where the relative speeds do not deviate that much. . Furthermore, it is preferable to move at a relative speed of zero, that is, at a constant speed, since unevenness will not occur. In addition, when developing, the potential of the electrode on the back side of the latent image holder 1 and the potential of the back side of the developing electrode roller 4 or the developing brush 5 may be the same potential, but it is not necessarily necessary to make them the same potential, and it is appropriate to A resistor or a capacitor having a capacitance of, for example, 100 pF may be inserted between the electrodes to electrically float the electrode. Appropriate electrical floating has the effect of, for example, relatively reducing the influence of fluctuations in the potential of the latent image on the photoreceptor 1 on development.
さらに第１図に示すように、この間にバイアス
電源７により直流電界ないしは交番電界又は交番
電界に直流電界を重畳した現像バイアスにより現
像しても良い。例えば暗部が＋600V、明部が0V
の潜像に対し、現像ローラ２に800Vpp，400Hz
のA.C電圧に＋250Vの直流電圧を重畳した現像
バイアスを印加して現像すると、現像ブラシ３の
電気抵抗が高い時には現像濃度を高める効果があ
つた。 Furthermore, as shown in FIG. 1, during this time, development may be performed using a bias power supply 7 using a DC electric field or an alternating electric field, or a developing bias in which a DC electric field is superimposed on an alternating electric field. For example, dark areas are +600V and bright areas are 0V.
800Vpp, 400Hz to the developing roller 2 for the latent image.
When developing by applying a developing bias in which a DC voltage of +250 V was superimposed on the AC voltage of , it was effective to increase the developed density when the electric resistance of the developing brush 3 was high.
第２図は本発明の実施例が適用された現像装置
の構成図である。。この実施例では、第１図のも
のと異なり、現像ブラシ５に現像剤（トナー）を
供給する現像剤供給手段が、一定のトナー量を供
給する供給ローラ８（ゴムローラ）とこのローラ
ー８上に一定のトナー量のトナーを付着塗布する
ための塗布手段９（ポリエステルフイルム厚さ
200μ）とホツパー２とから構成されている。ま
た10はトナーのこぼれ落ちを防止する為の部材
で、厚さ100μのポリエステルフイルムを供給ロ
ーラー８の表面に第２図に示すようにならわして
取付けられている。このように構成することによ
つて現像ブラシ５に常に安定した現像剤供給が行
なえる。この実施例においても現像ブラシ５は第
１図の実施例と同様、静電植毛によつてローラ４
ー上に形成されている。第１図の場合と同じく、
ローラー４に現像バイアス電圧を印加してもよ
い。また、ローラー４とローラー８との間にバイ
アス電圧を印加し（７ａ）、電界によりトナーを
移動させることが好ましい。 FIG. 2 is a block diagram of a developing device to which an embodiment of the present invention is applied. . In this embodiment, unlike the one shown in FIG. Coating means 9 for adhering and coating a certain amount of toner (polyester film thickness
200μ) and a hopper 2. Reference numeral 10 denotes a member for preventing the toner from spilling, and a polyester film having a thickness of 100 μm is attached to the surface of the supply roller 8 in a lined manner as shown in FIG. With this configuration, the developer can always be stably supplied to the developing brush 5. In this embodiment as well, the developing brush 5 is connected to the roller 4 by electrostatic flocking, similar to the embodiment shown in FIG.
– is formed on top. As in the case of Figure 1,
A developing bias voltage may be applied to the roller 4. Further, it is preferable that a bias voltage is applied between the roller 4 and the roller 8 (7a), and the toner is moved by the electric field.
本発明は、拘束力のない非磁性一成分トナーの
飛散を防止できる。
The present invention can prevent scattering of non-magnetic single-component toner without binding force.
第１図は本発明が適用可能な現像装置の構成
図、第２図は本発明の実施例を示す構成図であ
る。
図において、１……潜像保持体、２……ホツパ
ー、３……現像剤、４……現像ローラ、５……現
像ブラシ、６……塗布部材、７……バイアス電源
を表わす。
FIG. 1 is a block diagram of a developing device to which the present invention can be applied, and FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, 1... latent image holding member, 2... hopper, 3... developer, 4... developing roller, 5... developing brush, 6... coating member, 7... bias power source.
Claims (1)
剤供給部材と、該現像剤供給部材の表面に先端を
除く面が圧接しているトナー層厚規制部材とを有
し、さらに上記現像剤供給部材に非磁性一成分ト
ナーを供給するためのホツパーに一端が固定さ
れ、他端を除く面が上記現像剤供給部材に圧接し
ているトナーこぼれ落ち防止板をホツパー内部へ
上記現像剤供給部材が進入する側に有することを
特徴とする現像剤供給装置。 ２ 上記トナーこぼれ落ち防止板はフイルムで、
上記現像剤供給部材の回転方向に関して、上記他
端を自由端とし且つ上記圧接面を上記他端より上
流側に有している特許請求の範囲第１項記載の現
像剤供給装置。[Claims] 1. A developer supplying member that carries non-magnetic monocomponent toner and moves, and a toner layer thickness regulating member whose surface, excluding the tip, is in pressure contact with the surface of the developer supplying member. Further, a toner spill prevention plate, which has one end fixed to the hopper for supplying non-magnetic monocomponent toner to the developer supply member and whose surface other than the other end is in pressure contact with the developer supply member, is inserted into the hopper. A developer supply device characterized in that it is provided on a side into which a developer supply member enters. 2 The above toner spill prevention plate is a film.
2. The developer supply device according to claim 1, wherein the other end is a free end with respect to the rotational direction of the developer supply member, and the pressure contact surface is located upstream of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55184642A JPS57108871A (en) | 1980-12-25 | 1980-12-25 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55184642A JPS57108871A (en) | 1980-12-25 | 1980-12-25 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57108871A JPS57108871A (en) | 1982-07-07 |
| JPS647662B2 true JPS647662B2 (en) | 1989-02-09 |
Family
ID=16156796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55184642A Granted JPS57108871A (en) | 1980-12-25 | 1980-12-25 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57108871A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3053340B2 (en) * | 1994-10-31 | 2000-06-19 | シャープ株式会社 | Developing device |
-
1980
- 1980-12-25 JP JP55184642A patent/JPS57108871A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57108871A (en) | 1982-07-07 |
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