JPS5865460A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5865460A
JPS5865460A JP56164790A JP16479081A JPS5865460A JP S5865460 A JPS5865460 A JP S5865460A JP 56164790 A JP56164790 A JP 56164790A JP 16479081 A JP16479081 A JP 16479081A JP S5865460 A JPS5865460 A JP S5865460A
Authority
JP
Japan
Prior art keywords
toner
developing device
stirring
developer
stirring member
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
Application number
JP56164790A
Other languages
Japanese (ja)
Inventor
Hiroshi Yasuba
安場 博
Naokazu Nagasawa
直和 長澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56164790A priority Critical patent/JPS5865460A/en
Publication of JPS5865460A publication Critical patent/JPS5865460A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/114Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1143Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To obviate the irregular density of pictures by disposing two agitating members which are supported freely rotatably in the vessel of a developing device in such a way as to transfer the toner in the vessel in a prescribed direction. CONSTITUTION:Agitating bars 32, 33 consist of vanes 201, 202, 201', 202' attached on both sides of circular cylindrical bars 200, 200', which vanes 201, 202, 201', 202' are twisted right-hand and left-hand and are joined in the central parts. When the twisting pitch of the vanes 201, 202 of the bar 32 is defined as L1 and the vanes 201', 202' of the bar 33 as L2, the pitches are set at L2<L1. The toner and developer in a vessel 30a are moved to the central part of the member 32 by the rotation of the member 32, and the toner and developer in the vessel 30a are moved to both side parts of the member 33 by the rotation of the member 33.

Description

【発明の詳細な説明】 本発明は電子複写機に用いる現像器に関するものである
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a developing device used in an electronic copying machine.

感光ドラム上の静電潜像は、現像器により可視化される
。現像器は、マグネットロールと攪拌手段により構成さ
れる。現像剤は、キャリヤとトナーより成る。キャリヤ
は主として鉄粉より成り、表面は酸化膜または高分子で
コーティングされている。トナーは着色した高分子粉体
である。キャリヤとトナーを混合して攪拌すると、互い
に摩擦され、電荷をもつようになる。感光ドラムに非晶
質セレンを使った場合、トナーは負、キャリヤは正の電
荷を有するようにトナーとキャリヤが選ばれる。
The electrostatic latent image on the photosensitive drum is visualized by a developer. The developing device is composed of a magnet roll and stirring means. The developer consists of carrier and toner. The carrier is mainly made of iron powder, and the surface is coated with an oxide film or a polymer. Toner is a colored polymer powder. When the carrier and toner are mixed and stirred, they rub against each other and become electrically charged. When amorphous selenium is used for the photosensitive drum, the toner and carrier are selected so that the toner has a negative charge and the carrier has a positive charge.

第1図は、本発明に係わる電子複写機の実施例であり、
この図を用いて、電子複写機の基本プロセスを説明する
。  。
FIG. 1 shows an embodiment of an electronic copying machine according to the present invention.
The basic process of an electronic copying machine will be explained using this diagram. .

非晶質セレンから成る感光ドラム1oは矢印11の方向
に回転する。帯電器100に正の高電圧を印加しドラム
に正の電荷を与える。原稿11oはミラー111.11
2,113,114,115,116 、レンズ117
 、スリット118 を通して感光ドラム1o上に結像
され、静電潜像を形成する。現像器30には前記現像剤
が入っており、非磁性ス17−ブ内にマグネットを配設
して成るマグネットロール31により現像剤を感光ドラ
ム1oの表面に擦りつけ静電潜像を可視化する。この時
、感光ドラム1oにはトナーのみが付着し、キャリヤは
現像器3o内に残る。何度も現像を繰り返すと、現像剤
中のトナーが減少していくので、新しいトナーを補給し
なければならない。新しいトナーはホン/ニーSOより
補給される。この時、キ4・リヤとトナーを激しく混合
する必要があり、撹拌棒32゜33にて攪拌する。
A photosensitive drum 1o made of amorphous selenium rotates in the direction of an arrow 11. A positive high voltage is applied to the charger 100 to give a positive charge to the drum. Original 11o is mirror 111.11
2, 113, 114, 115, 116, lens 117
, are imaged onto the photosensitive drum 1o through the slit 118, forming an electrostatic latent image. The developing device 30 contains the developer, and the developer is rubbed onto the surface of the photosensitive drum 1o by a magnet roll 31 consisting of a magnet disposed within a non-magnetic tube 17 to visualize the electrostatic latent image. . At this time, only the toner adheres to the photosensitive drum 1o, and the carrier remains in the developing device 3o. If development is repeated many times, the toner in the developer decreases, so new toner must be replenished. New toner is supplied by Hon/Nee SO. At this time, it is necessary to mix the toner and the toner vigorously, and the mixture is stirred using stirring rods 32 and 33.

感光ドラム1o上に付着したトナーは、転写用帯電器1
01  で紙に転写される。分離用帯電器102で紙を
感光ドラム10から分離し、紙は定着器130 にて加
熱および加圧して定着され、複写物となる。感光ドラム
1oは除電部103 にて除電され、クリーナ部120
 で清掃されて複写プロセスは終了する。
The toner adhering to the photosensitive drum 1o is transferred to the transfer charger 1.
01 to be transferred to paper. A separating charger 102 separates the paper from the photosensitive drum 10, and a fixing device 130 heats and pressurizes the paper to fix it, thereby forming a copy. The photosensitive drum 1o is neutralized by a static eliminating section 103, and then removed by a cleaner section 120.
is cleaned and the copying process ends.

現像器30内ではトナーが消費され、新しいトナーの補
給が繰り返し行なわれている。新しいトナーがホッパー
60より現像器3o内に落下した時には、適度な攪拌に
よる摩擦帯電でトナーに充分な電荷を与え、トナーの外
部への飛散を少なくする。攪拌が不適当であると画像が
劣化し、トナーの現像器30外への飛散も多くなる。
Toner is consumed within the developing device 30, and new toner is repeatedly replenished. When new toner falls into the developing device 3o from the hopper 60, a sufficient charge is applied to the toner by frictional charging due to appropriate stirring, thereby reducing the scattering of the toner to the outside. If the stirring is inappropriate, the image will deteriorate and more toner will scatter outside the developing device 30.

本発明はトナー飛散の少ない、しかも、現像剤の偏りに
基づく画像濃度むらを生じさせない現像器を提供するこ
とを目的としたものである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a developing device that causes less toner scattering and does not cause image density unevenness due to unevenness of developer.

以下に本発明の実施例を述べる。第1図は前述の如ぐ本
発明の現像器を組込んだ電子複写機の一例の要部断面図
であり、第2図は本発明に係る現像器ユニット部分を示
した斜視図である。現像器ユニットは、前側板35.後
側板36にマグネットロール31.第1および第2の撹
拌棒32と33゜ドラム固定軸12.クリーニング部1
20 より成る。ここで、マグネットロール31.撹拌
棒32゜33など装備した部分を現像器3oと称する、
マグネットロール31はロール固定ノブ37により固定
されている。上記第1および第2の撹拌棒32.33に
は第1および第2のギヤ38 、39が付いている。現
像器30は蓋4oで覆われる。
Examples of the present invention will be described below. FIG. 1 is a sectional view of a main part of an example of an electronic copying machine incorporating a developing device of the present invention as described above, and FIG. 2 is a perspective view showing a portion of a developing device unit according to the present invention. The developing device unit is located on the front side plate 35. A magnet roll 31 is attached to the rear side plate 36. First and second stirring rods 32 and a 33° drum fixed shaft 12. Cleaning section 1
Consists of 20. Here, the magnet roll 31. The part equipped with stirring rods 32 and 33 is called the developing device 3o.
The magnet roll 31 is fixed by a roll fixing knob 37. The first and second stirring bars 32,33 are provided with first and second gears 38,39. The developing device 30 is covered with a lid 4o.

感光ドラム1oはドラム固定軸1?およびドラム固定ノ
ブ11とドラム固定ピン13により現像器ユニットに装
着される。
Is the photosensitive drum 1o the drum fixed shaft 1? The drum fixing knob 11 and drum fixing pin 13 are used to attach the drum to the developing unit.

第3図は現像器3oと感光ドラム10の断面図である。FIG. 3 is a sectional view of the developing device 3o and the photosensitive drum 10.

現像剤は撹拌棒32,33で混合され、マグネットロー
ル31とドラタブレード450間より出て感光ドラム1
0の表面を擦る。現像後の現像剤はスクレーパ41で掻
き落される。新しいトナーはホッパーSOに入っており
、補給ローラ61によりトナー受入口34を通して現像
器3゜内に入る。トナーがホッパー60と現像器3oの
隙間から、もれないようにシール66が設けられている
。落下したトナーはそのまま現像器30の下方に入りこ
まないように断面がL字状の板42を設けている。撹拌
棒32は矢印43の方向に回転しており、撹拌棒33は
矢印44の方向に回転している。
The developer is mixed by the stirring rods 32 and 33, and comes out from between the magnet roll 31 and the drum blade 450 and is applied to the photosensitive drum 1.
Rub the surface of 0. The developer after development is scraped off by a scraper 41. New toner is in the hopper SO, and is introduced into the developing device 3° through the toner receiving port 34 by the supply roller 61. A seal 66 is provided to prevent toner from leaking from the gap between the hopper 60 and the developing device 3o. A plate 42 having an L-shaped cross section is provided to prevent the fallen toner from entering the lower part of the developing device 30 as it is. Stirring bar 32 is rotating in the direction of arrow 43, and stirring bar 33 is rotating in the direction of arrow 44.

なお、上記攪拌部材32は、現像器本体の容器30a 
 の上部に設けられたホッパー60からのトナーが供給
されるトナー受入口34の下方に回転自在に配設され、
攪拌部材33は上記攪拌部材32の下方に回転自在に配
設されている。また、断面がL字状の板42は、その下
板部が攪拌部材32の下方に位置するように容器30a
  の内壁に取付けられている。
Note that the stirring member 32 is connected to the container 30a of the main body of the developing device.
is rotatably disposed below a toner receiving port 34 to which toner is supplied from a hopper 60 provided at the top of the
The stirring member 33 is rotatably disposed below the stirring member 32. Further, the plate 42 having an L-shaped cross section is arranged in the container 30a so that its lower plate portion is located below the stirring member 32.
installed on the inner wall of the

第4図(、) 、 (b)はそれぞれ前記撹拌棒32,
33の外観を示したもので、第6図は第4図(a)にお
けるA  A’  線の断面図である。なお、この第6
図の断面形状は第4図Φ)についても同様である。撹拌
棒32,33はそれぞれ円柱棒200,200’の両側
に翼201 、202 、201’、 202’が付い
ており、それらの翼201.202.201’、202
’を布巻と左巻に捩じって中央部で繋ぎ合わせた形とな
っている。
FIGS. 4(a) and (b) show the stirring rod 32,
33, and FIG. 6 is a sectional view taken along the line AA′ in FIG. 4(a). Furthermore, this sixth
The cross-sectional shape of the figure is the same as that of FIG. 4 Φ). The stirring rods 32, 33 have blades 201, 202, 201', 202' on both sides of cylindrical rods 200, 200', respectively, and these blades 201, 202, 201', 202
' is twisted into cloth wrapping and left wrapping and connected at the center.

なお、そのような螺旋形の翼201 、202 、20
1’。
Note that such spiral wings 201 , 202 , 20
1'.

202′は、必ずしも中央部で繋ぎ合っている必要はな
い。また、ここで、上記撹拌棒32を第1の撹拌棒と称
し、その翼201.202の捩じりピッチをLl とす
る。また、撹拌棒33を第2の撹拌棒と称し、その翼2
01 ’、 202’ の捩じりピッチL2(ただし、
L2〈L、)の関係に設定している。
202' do not necessarily need to be connected at the center. Further, here, the stirring rod 32 is referred to as a first stirring rod, and the twisting pitch of its blades 201 and 202 is Ll. Further, the stirring bar 33 is referred to as a second stirring bar, and its blades 2
Torsional pitch L2 of 01', 202' (however,
The relationship is set as L2<L,).

第6図および第7図は本発明で使用し得る第1゜第2の
撹拌棒32.33の他の例を示す断面図であり、第6図
の場合は円柱棒200に一つの翼203 を設けたもの
、そして第7図は円柱棒200に4つの翼204〜20
7を設けたものである。
6 and 7 are cross-sectional views showing other examples of the first and second stirring rods 32 and 33 that can be used in the present invention, and in the case of FIG. FIG. 7 shows a cylindrical bar 200 with four wings 204 to 20.
7.

第8図は本発明における撹拌棒によるトナー及び現像剤
の流れを示したものである。第1および第2の撹拌棒3
2.33はギヤ38.39によって連動して回転する。
FIG. 8 shows the flow of toner and developer by the stirring rod in the present invention. First and second stirring rods 3
2.33 are interlocked and rotated by gears 38.39.

矢印62の方向にトナーがホッパーから落下する。第1
の撹拌棒32の動きによって落下したトナーは矢印63
の方向にvlの速度で移動する。すなわち現像器30の
中央部へ移動する。中央部で充分i拌混合された現像剤
は、第2の撹拌棒33の作用により矢印64の方向へv
2の速度で移動する。前述のように第1の撹拌棒32の
翼201.202  の捩じりピッチはり。
Toner falls from the hopper in the direction of arrow 62. 1st
The toner that falls due to the movement of the stirring rod 32 is shown in the arrow 63.
move in the direction of at a speed of vl. That is, it moves to the center of the developing device 30. The developer that has been sufficiently stirred and mixed in the center is moved in the direction of the arrow 64 by the action of the second stirring rod 33.
Move at a speed of 2. The torsional pitch of the blades 201, 202 of the first stirring bar 32 as described above.

であり、第2の撹拌棒33の翼201’、 202’の
捩じりピッチはL2であり、Ll〉L2であるので、第
1および第2の撹拌棒32.33の回転数を同一になる
ようにギヤ38.39を選ぶと、トナーおよび現像剤の
移動速度は、vl〉v2となる。従って、落下したトナ
ーは急速に現像器の中央部へ集められ、充分攪拌時間を
与えられて、ゆっくりと現像器の両端部に移動すること
になる。
The torsional pitch of the blades 201' and 202' of the second stirring bar 33 is L2, and since Ll>L2, the rotation speeds of the first and second stirring bars 32 and 33 are the same. If the gears 38 and 39 are selected so that the toner and developer move speeds become vl>v2. Therefore, the fallen toner is rapidly collected in the center of the developing device, and given sufficient stirring time, slowly moves to both ends of the developing device.

現像剤は矢印64の方向へ移動しながらマグネットロー
ル31に引き付けられて現像に関与する。
The developer is attracted to the magnet roll 31 while moving in the direction of the arrow 64 and participates in development.

一般に、トナーとキャリヤがよく混合されていない現像
剤にトナー飛散が多くみられ、また、マグネットロール
31の両端よりトナーの飛散が起シやすい。本発明によ
ると、トナーがキャリヤと充分混合されていない状態、
言い換えるとボンパー60から落下直後のトナーの状態
では、第1の撹拌棒32の働きによりトナーは現像器3
0の中央部に寄せられ、中央部で充分攪拌混合された現
像剤が第2の撹拌棒33の作用により両端に向けて拡が
り、マグネットロール31の両端でのトナー飛散は大巾
に減少する。
Generally, toner scattering is more likely to occur in a developer in which toner and carrier are not well mixed, and toner scattering is more likely to occur from both ends of the magnet roll 31. According to the present invention, a state in which the toner is not sufficiently mixed with the carrier;
In other words, in the state of the toner immediately after falling from the bomber 60, the action of the first stirring rod 32 causes the toner to be transferred to the developing device 3.
The developer gathered at the center of the magnet roll 31 and sufficiently stirred and mixed at the center spreads toward both ends by the action of the second stirring rod 33, and toner scattering at both ends of the magnet roll 31 is greatly reduced.

第3図に示すように、断面がL字状の板42はホッパー
からの落下トナーが混合不充分で第2の撹拌棒33に達
するのを防ぐ。
As shown in FIG. 3, the plate 42 having an L-shaped cross section prevents the toner falling from the hopper from reaching the second stirring rod 33 due to insufficient mixing.

第9図は本現像器の後側を示したものであり、第1の撹
拌棒32がギヤ48によシ駆動手段(図示せず)と結合
されて矢印43の方向に回転する。
FIG. 9 shows the rear side of the present developing device, in which the first stirring rod 32 is connected to a drive means (not shown) through a gear 48 and rotates in the direction of an arrow 43.

マグネットロール31のスリーブはギヤ47により矢印
46の方向に回転する。
The sleeve of the magnet roll 31 is rotated in the direction of an arrow 46 by a gear 47.

第10図は本現像器の前側を示したものであり、前記駆
動手段により回転せられた第1の撹拌棒32は、ギヤ3
8とギヤ39を通して第2の撹拌棒33を矢印44の方
向に回転する。マグネットロール31のスリーブ内にあ
るマグネットは前側でノブ37によシ固定されている。
FIG. 10 shows the front side of this developing device, and the first stirring rod 32 rotated by the driving means is connected to the gear 3.
8 and gear 39 to rotate the second stirring rod 33 in the direction of arrow 44. The magnet in the sleeve of the magnet roll 31 is fixed to the knob 37 on the front side.

以上の説明から明らかなように本発明の現像器は現像剤
中のトナーの飛散が少なく、しかも現像剤の偏りに基づ
く画像濃度むらを生じさせること0 がなく、良好な画像複写を可能にするものである。
As is clear from the above description, the developing device of the present invention causes less scattering of toner in the developer, and also does not cause image density unevenness due to unevenness of the developer, making it possible to copy images favorably. It is something.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の現像器を組み込んだ電子複写機の一例
の要部断面図、 第2図は本発明の〜実施例である現像器ユニットの斜視
図、 第3図は本発明の〜実施例に係る現像器と感光ドラムの
断面図、 第4図(a) 、 (b)は本発明で使用する第1およ
び第2の撹拌棒の一例を示す外観図、 第5図は第4図のA−A’線断面図、第6図および第7
図は本発明で使用し得る撹拌棒の他の実施例の断面図、
第8図′は本発明の実施例に係る現像器内のトナーおよ
び現像剤の流れを示しだ要部断面図、′第9図は本発明
の実施例に係る現像器の背面図、第10図は同本発明の
実施例に係る現像器の前面図である。 3o・・・・・・現像器、30a  ・・団・容器、3
1・・団・マグネットローノペ32・・・・・・第1の
撹拌棒、33・・・・・・第2の撹拌棒、34′・・・
・・・トナー受入口、38゜39・・・・・・ギヤ、6
o・・・・・・ホッパー、200,200’・・・・・
円柱棒、201,201’、202,202’、203
〜207 ・・・・・・翼。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第2
図 0 第 6 N 初 第7図 0口 味 425−
FIG. 1 is a sectional view of essential parts of an example of an electronic copying machine incorporating a developing device of the present invention, FIG. 2 is a perspective view of a developing device unit according to an embodiment of the present invention, and FIG. 4(a) and 4(b) are external views showing an example of the first and second stirring rods used in the present invention, and FIG. AA' line sectional view of the figure, Figures 6 and 7
The figure is a sectional view of another embodiment of a stirring bar that can be used in the present invention.
Fig. 8' is a sectional view of main parts showing the flow of toner and developer in the developing device according to the embodiment of the present invention, Fig. 9 is a rear view of the developing device according to the embodiment of the present invention, and Fig. 10 The figure is a front view of the developing device according to the embodiment of the present invention. 3o...Developer, 30a...Group/container, 3
1...Group/Magnetic Rope Nope 32...First stirring bar, 33...Second stirring bar, 34'...
...Toner intake port, 38°39...Gear, 6
o...Hopper, 200, 200'...
Cylindrical rod, 201, 201', 202, 202', 203
~207 ...wings. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 0 6th N First Figure 7 0 Mouth 425-

Claims (1)

【特許請求の範囲】[Claims] ホッパーからのトナーが供給されるトナー受入口を有す
る現像器の容器と、該容器内に回動自在に支持されたマ
グネットロールと第1および第2の攪拌部材を有し、前
記第1の攪拌部材を前記トナー受入口の下方に配置し、
前記第2の攪拌部材は第1の攪拌部材の下方に配置する
ように構成し、前記第1および第2の攪拌部材は回転軸
の軸上中央部から端部までの半分づつにおいて石巻と左
巻の螺旋状の翼を設けた構造とし、かつ、前記第1の攪
拌部材の螺旋状の翼の捩れのピッチをLl  とし、前
記第2の攪拌部材の螺旋状の翼の捩れのピッチをL2と
した場合に、Ll〉L2の関係に設定し、前記第1の攪
拌部材は前記容器内のトナーと現像剤を攪拌部材の中央
部に移動するように前記容器内で回転させ、前記第2の
攪拌部材は容器内のトナーと現像剤をその攪拌部材の両
端部へ移動するように回転させるようにしたことを特徴
とする現像器。
a developing device container having a toner receiving port into which toner is supplied from a hopper; a magnet roll rotatably supported within the container; and first and second stirring members; disposing a member below the toner receiving port;
The second stirring member is configured to be disposed below the first stirring member, and the first and second stirring members are arranged on the Ishinomaki and left sides in each half from the center to the end of the rotating shaft. The first stirring member has a structure in which spiral blades are provided, and the pitch of twist of the spiral blades of the first stirring member is Ll, and the pitch of twist of the spiral blades of the second stirring member is L2. In this case, the relationship Ll>L2 is set, and the first stirring member rotates within the container so as to move the toner and developer in the container to the center of the stirring member, and the second stirring member A developing device characterized in that the agitating member rotates so as to move the toner and developer in the container to both ends of the agitating member.
JP56164790A 1981-10-14 1981-10-14 Developing device Pending JPS5865460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56164790A JPS5865460A (en) 1981-10-14 1981-10-14 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56164790A JPS5865460A (en) 1981-10-14 1981-10-14 Developing device

Publications (1)

Publication Number Publication Date
JPS5865460A true JPS5865460A (en) 1983-04-19

Family

ID=15799984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56164790A Pending JPS5865460A (en) 1981-10-14 1981-10-14 Developing device

Country Status (1)

Country Link
JP (1) JPS5865460A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572299A (en) * 1991-11-08 1996-11-05 Fujitsu Limited Developing device using two-component developer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572299A (en) * 1991-11-08 1996-11-05 Fujitsu Limited Developing device using two-component developer

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