JPS5857160A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS5857160A JPS5857160A JP15478081A JP15478081A JPS5857160A JP S5857160 A JPS5857160 A JP S5857160A JP 15478081 A JP15478081 A JP 15478081A JP 15478081 A JP15478081 A JP 15478081A JP S5857160 A JPS5857160 A JP S5857160A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- toner
- developing
- drum
- plate
- 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
-
- 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
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
- G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は静電像・電位像・磁気像などの潜像をIII像
化する現像装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a developing device that converts latent images such as electrostatic images, potential images, and magnetic images into III images.
従来、静電荷パターン等を現像する乾式現像法として、
現像剤の構成から区分すると二成分gLS法と一成分3
111(a法がある。前者は現像剤が、鉄粉やガラスピ
ーズ等のキャリア粒子と実際に静電像を′fA像するト
ナー粒子との混合物からなる。この二成分II法はキャ
リア粒子とトナー粒子との混合比の変化によるliig
IA濃度の変動、中ヤリア粒子の劣化にともなう画質の
低下という欠点を有している。Conventionally, as a dry development method for developing electrostatic charge patterns, etc.
Based on the composition of the developer, it can be classified into two component gLS method and one component 3.
111 (a method). In the former, the developer consists of a mixture of carrier particles such as iron powder or glass beads and toner particles that actually form an electrostatic image. In this two-component II method, the developer consists of a mixture of carrier particles such as iron powder or glass beads and toner particles that actually form an electrostatic image. liig by changing the mixing ratio with toner particles
It has the disadvantage of a decrease in image quality due to fluctuations in IA concentration and deterioration of medium particles.
一方、後者の一成分現像法は、キャリア粒子が存在しな
い為、上記の二成分現像法のもつ欠点はなく、′IAg
II法として将来性の高いものである。一般的に知られ
かつ用いられている一成分現像剤は、相対的な運動によ
る摩擦帯電や静電像と対向する現像領域まで現像剤を搬
送する手段の必要性等から、トナー粒子内に磁性粉体を
包含するものである。On the other hand, the latter one-component development method does not have the disadvantages of the above-mentioned two-component development method because there are no carrier particles, and 'IAg
This method has high future potential as a II method. Generally known and used one-component developers have magnetic properties within the toner particles due to frictional electrification caused by relative movement and the need for a means to transport the developer to the development area facing the electrostatic image. This includes powder.
しかるyc、該磁性粉体の含有量は、転写紙上のトナー
像を該転写紙に定着する九めに、熱6るいは圧力等の手
Rを用いて転写紙にトナーを結着させるので、おのずと
制限されてくる。実用上、磁性粉体はトナー粒子の10
重量参から60重量−を占めるものであるが、樹脂と磁
性粉体の比真の違いからトナー粒子中の磁性粉体の体積
占有率は、20慢以下程度とな9.トナー中での磁性粉
体V体積占有率iごく少ない事から、磁界中でのトナー
の挙動は、磁性粉体単体とは異なり、磁極位置で密度が
疎な長いブラシを形成しにくくなる。その為に、トナー
支持部材上でトナ一層の厚みt数■に規制し九場合支持
部材上のトナ一層は、ムラを生じ中すく不均一なものに
なりやすい。However, the content of the magnetic powder is determined by the following steps: Before fixing the toner image on the transfer paper, the toner is bonded to the transfer paper using heat or pressure. Naturally, it becomes limited. In practical use, magnetic powder is 10% of toner particles.
However, due to the difference in the ratio between the resin and the magnetic powder, the volume occupancy of the magnetic powder in the toner particles is about 20% or less.9. Since the volume occupancy rate i of the magnetic powder V in the toner is very small, the behavior of the toner in the magnetic field is different from that of the magnetic powder alone, and it becomes difficult to form a long brush with sparse density at the magnetic pole position. For this reason, when the thickness of a single layer of toner on a toner support member is regulated to a number of t, the single layer of toner on the support member tends to become uneven and uneven.
この支持部材上りトナ一層の不均一性はIA律画像に直
接再現されやすく、まえ、密なトナ一層であるので層厚
にバッフ中が生じると、静電像保持部材である光導電体
表面に圧接されトナーが凝集し九りあるいは光導電体を
損傷する危険性がある。This non-uniformity of the toner layer on the support member is easily reproduced directly in the IA law image, and since it is a dense toner layer, if buffing occurs in the layer thickness, the surface of the photoconductor, which is the electrostatic image holding member, will be affected. There is a risk that the toner may aggregate due to pressure contact and cause damage to the photoconductor.
したがって、このような意味から一成分磁性トナーを用
いる現像法としては均一なトナーの薄層をトナー支持部
材上に形成する必要性がある。Therefore, in this sense, in a developing method using a one-component magnetic toner, it is necessary to form a uniform thin layer of toner on a toner support member.
この均一なトナー薄層を形成する方法として、本出鵬人
は先に特願昭53−92108号(特開昭55−151
673号公報)記載の知合現像装置を提案し喪。As a method for forming this uniform toner thin layer, Hondoshin previously published Japanese Patent Application No. 53-92108 (Japanese Unexamined Patent Publication No. 55-151).
673 Publication) was proposed and mourned.
この現像装置の概at第1図にて説明すると、表面に円
周に沿ってN−8磁極N1・81@N2・S2・N3・
83を着磁したマグネットロール101に非磁性のステ
ンレス等ででき九スリープ −100(トナー支持部材
)をはめ、このスリーブ100t−1記マグネツトロー
ル101を固定してその周囲を図示時計方向に回転させ
る。カット極Nlに対向して設叶られ良磁性ブレード1
02はカット極N1の磁力と共働してスリーブ1000
回転に伴って前側板(不図示9−6ステイ104、トナ
ー落下防止スティ105.とで−まれ九現像容器箱内の
絶縁性磁性トナーTをスリーブ100上に適正な厚みに
塗布する。dlは磁性ブレード102とスリーブ100
とのすきt間隔である。スリーブX0Othiに塗布さ
れたトナーは現像極81の位置において、スリーブ10
0と感光ドラムDのすきまdlを転移し静電像に応じた
顕画像が得られる。To explain the outline of this developing device with reference to FIG. 1, N-8 magnetic poles N1, 81@N2, S2, N3,
A sleeve 100t-1 (toner support member) made of non-magnetic stainless steel or the like is fitted onto the magnet roll 101 magnetized with a sleeve 100t-1, and the sleeve 100t-1 is fixed and rotated around it in the clockwise direction shown in the figure. let A good magnetic blade 1 is installed facing the cut pole Nl.
02 cooperates with the magnetic force of the cut pole N1 to form the sleeve 1000.
As it rotates, the front plate (not shown, 9-6 stay 104, toner fall prevention stay 105) applies the insulating magnetic toner T in the developer container box to an appropriate thickness on the sleeve 100. dl is Magnetic blade 102 and sleeve 100
The gap is t. The toner applied to the sleeve X0Othi is transferred to the sleeve 10 at the position of the developing pole 81.
0 and the gap dl between the photosensitive drum D is transferred to obtain a visible image corresponding to the electrostatic image.
このときスリーブ100の塗布トナーの厚みは50〜1
00/J、am部のすきt d 2ri330 ti以
下100#以上である。At this time, the thickness of the toner applied to the sleeve 100 is 50 to 1
00/J, the gap in the am section is t d 2ri330 ti or less than 100#.
次いでスリーブ100が回転を続け、トナー嬉下防止ス
テイ105との間隔は徐々に狭まくなり蛾下部eこて最
も狭くなって以後その間隔を保って推移する。この間隔
は現像に使われなかったトナー(残留トナー)が容易に
入り易い様d3.−1.3〜2waぐらいが適当である
。途中、極端に狭くなるところd4は上方よ炒トナーT
の落下、とりわけ最初に使うときの如く内部にトナーが
全くない時に上方より)ナーを落下補給した際のX方向
へのトナーのとび出しを防止する役目を果たす。なお
このd4に対応するスリーブ内マグネットロール101
0表面位置に磁極S2を設けた方がよい。それは、磁極
S2v部分では、塗布されたトナー〇ブラシが立つ為、
相乗効果で、上方より落ちてくるトナーがもれにくい、
上述した使用の為にはこの間隔d4は狭い8131いが
現実には現像に使われなかったトナーの通過が容易に行
なわれる様な間隔即ち0.7〜1.3 an程度が適当
である。Next, the sleeve 100 continues to rotate, and the distance between the sleeve 100 and the toner drop prevention stay 105 gradually narrows until it becomes the narrowest at the lower part of the trowel, and thereafter maintains that distance. This interval makes it easy for toner that was not used for development (residual toner) to enter d3. -1.3 to 2 wa is appropriate. On the way, where it gets extremely narrow, d4 is the upper part of the road.
This function serves to prevent the toner from falling in the X direction when replenishing the toner (especially from above when there is no toner inside at the time of first use). In addition
In-sleeve magnet roll 101 corresponding to this d4
It is better to provide the magnetic pole S2 at the zero surface position. This is because the applied toner brush stands up in the magnetic pole S2v part.
The synergistic effect prevents toner that falls from above from leaking.
For the above-mentioned use, the distance d4 is narrow 8131, but in reality, it is appropriate to set it at a distance of about 0.7 to 1.3 an, which allows the toner not used for development to easily pass through.
上記の関114d4部を通過Lスリーブ100上のトナ
ーはリン青銅や、ステンレス等のバネ材で作られたクリ
ーナ106にてかきとられる。かきとられたトナーT#
iY方向にクリーナ106の穴106aを通過する。こ
の力は磁極N3の磁力と下から次々にかきとられ九トナ
ーが押す力による。The toner on the L sleeve 100 passing through the above-mentioned barrier 114d4 is scraped off by a cleaner 106 made of a spring material such as phosphor bronze or stainless steel. Scraped toner T#
It passes through the hole 106a of the cleaner 106 in the iY direction. This force is due to the magnetic force of the magnetic pole N3 and the pushing force of the nine toners that are successively scraped off from below.
N2はマグネットロール101の磁極S1と82との中
間位置、53ij磁極N3とN1との中間位置に夫々設
けた搬送極である。軸107に取付けられ九針金108
は反時計方向に回転して現像答易翰内のトナーTを攪拌
する。N2 is a transport pole provided at an intermediate position between magnetic poles S1 and 82 of the magnet roll 101, and an intermediate position between 53ij magnetic poles N3 and N1. Nine wires 108 are attached to the shaft 107.
rotates counterclockwise to agitate the toner T in the developing container.
上記の8I像値置は、感光ドラムDとスリーブ1001
−3Jl像部(ドラ五りとスリーブ1000対向部)に
於て同一方向で略同−周速、正確にいうと2〜3s程度
スリーブ周速をドラム周速よシ遅くして塗布トナーのブ
ラシ先端の移動速度とブラシの穂が転がることによる増
速分を足したものをドラムスピードと一致させてスリー
ブ上のトナーをドラム上の潜像電位に静電的に引きつけ
させる。The above 8I image value position is the photosensitive drum D and sleeve 1001.
- At the 3Jl image area (the part facing the drum and the sleeve 1000), apply toner with a brush in the same direction and at approximately the same circumferential speed, to be more precise, the sleeve circumferential speed is about 2 to 3 seconds slower than the drum circumferential speed. The sum of the moving speed of the tip and the increased speed due to rolling of the brush ears is made equal to the drum speed, and the toner on the sleeve is electrostatically attracted to the latent image potential on the drum.
かような構成の為@2図に示すように、スリーブ100
と同軸上にスリーブギヤos&FM定し、このギヤGS
V−感光ドラムDと同軸上めドラムギヤGDと噛み合せ
て、感光ドラムDとスリーブ1000回転速WLを上記
のように関連させる。For such a configuration, as shown in Figure @2, the sleeve 100
A sleeve gear os&FM is installed on the same axis as this gear GS.
The V-photosensitive drum D is engaged with the coaxial upper drum gear GD, and the photosensitive drum D and the sleeve 1000 rotation speed WL are related to each other as described above.
具体的数字を例示すると、ドラム径160%ド2ムギー
?160Jxリーブ径32.4%、スリーブギヤ33t
mである。To give an example of a specific number, is the drum diameter 160% double wheat? 160Jx Reeve diameter 32.4%, sleeve gear 33t
It is m.
そしてこのMt&装・置では、スリーブ100の表面に
形成された塗布トナーのブラシは感光ドラムとは接触せ
ず、トナーTは感光ドラムD上の潜像電位に静電的eζ
引かれて間隔d2内を移動する。In this Mt & device, the applied toner brush formed on the surface of the sleeve 100 does not come into contact with the photosensitive drum, and the toner T is electrostatically applied to the potential of the latent image on the photosensitive drum D.
It is pulled and moves within the distance d2.
その為感光ドラムDの回転速度とスリーブ100上の塗
布トナーの移動速度は同方向に完全に一致させ、かつ相
互に回転ムラがない様に構成されねばならない、そうし
ないと間隔d2をトナーが移動する間に画像の乱れとな
る。従って、上記のようにドラムギヤGDとスリーブギ
ヤGSを互いに噛み合わせる構成は相互の回転ムラを完
全に防止できるので最良と首える。Therefore, the rotational speed of the photosensitive drum D and the moving speed of the applied toner on the sleeve 100 must be made to completely match in the same direction, and must be configured so that there is no uneven rotation. Otherwise, the toner will move by the distance d2. During this time, the image becomes distorted. Therefore, the configuration in which the drum gear GD and the sleeve gear GS are meshed with each other as described above is the best because it can completely prevent uneven rotation.
かように構成された3J像装置でもプロセススピードが
速い場合、例えば330 mlI/ sec 4度では
スリーブ100に対するトナー塗布部のすきま間隔d1
は0.1へ程度としないとトナー厚み50〜xooj1
11度の塗布を行うに当#)%多少不安定になることが
ある。このよりにトナー通過域の間隔を規制するような
場合や、その間隔が比較的小さい場合勢では、ゴミや凝
集トナー等の比較的大きな物質がその部分につかえてし
まうことがある。Even with the 3J imager configured as described above, if the process speed is high, for example, at 330 ml/sec 4 degrees, the gap distance d1 between the toner application part and the sleeve 100 is
If the toner thickness is not about 0.1, the toner thickness will be 50~xooj1
When applying 11 times, it may become somewhat unstable. In cases where the interval between the toner passage areas is restricted or the interval is relatively small, relatively large substances such as dust or aggregated toner may get stuck in that area.
この現象がさらに絖〈と、その後のトナー塗布が不安定
となったり、つっかえた部分に対応するスリーブ周面に
トナー塗布がなされない、かようなスリーブで現像を行
なうと現像ムラや、白すし部を生じて好ましくない。If this phenomenon continues to occur, subsequent toner application may become unstable, and toner may not be applied to the circumferential surface of the sleeve corresponding to the stuck area.If you perform development with such a sleeve, uneven development or white spots may occur. This is undesirable because it causes problems.
本発明はこの種の現像装置についての上記のような問題
点をはじめとして、その他回転スリーブ等の軸受部、駆
動様構部、トナーの漏洩飛散防止シール手段、所要すt
!ま部の間隔保持手段1組立てや装置装着手段、バイア
ス印加手段等に関する。The present invention solves the above-mentioned problems with this type of developing device, as well as other problems such as a bearing part such as a rotating sleeve, a driving structure part, a sealing means for preventing toner leakage and scattering, and a required T.
! The present invention relates to the assembly of the spacer 1, the device mounting means, the bias application means, etc.
少なくと4一つ以−ヒの問題点を解決して総合的に優れ
九蝙像装f11を得るべく装置各部いずれかをこついて
機構的・方式的に少なくとも一つ以上の新規な工夫を加
えてなるものを7提供することを目的とする。In order to solve at least four or more problems and obtain a comprehensively excellent Nine-Fly Imaging System F11, we have added at least one new mechanical or methodological device to each part of the device. The aim is to provide 7 things that will make people feel better.
以下図示Ni!置に基いて具体的に説明する(1)装置
の全体的概略構成(主として第3−4・5図)
本同装置は現像剤保持部材としての現像スリーブに対す
るトナー塗布を第1FiA岡装置のようにブv−)’1
02で行なうのではなくコートスリーブにより行なうよ
うに構成した。Illustrated below! (1) Overall schematic configuration of the device (mainly Figures 3-4 and 5) This device applies toner to the developing sleeve as a developer holding member, similar to the first FiA Oka device. nibuv-)'1
It was configured so that it was not carried out with the 02 but with a coat sleeve.
即ち第3・4図に於て、l・2は現像装置−箱内に該6
箱の奥側板5と前側板6間に回転自由に軸受j O・1
0,11・11させた並行一対の現像剤保持部材として
の現像スリーブとそのスリーブに現像剤九るトナーを転
移するコートスリーブである。That is, in Figures 3 and 4, 1 and 2 are the developing devices - the 6
A freely rotating bearing j O・1 is installed between the back side plate 5 and front side plate 6 of the box.
The developing sleeves are a pair of parallel developer holding members arranged at 0.0, 11.11, and a coating sleeve for transferring the developer and toner to the sleeves.
現像スリーブl及びコートスリーブ2Fi何れもステン
レス鋼等の非磁性材製で、夫々その内空に磁界発生部材
としてマグネットロール3・4を挿入配設しである。該
マグネットロール3・4は何れも非回転で、そのロール
囲りをスリーブl・2がlX3図に於て時計方向に回転
駆動される。Both the developing sleeve 1 and the coating sleeve 2Fi are made of a non-magnetic material such as stainless steel, and have magnet rolls 3 and 4 inserted therein as magnetic field generating members. Both of the magnet rolls 3 and 4 do not rotate, and the sleeves 1 and 2 are rotated around the rolls in a clockwise direction as shown in Figure 1X3.
現像スリーブ1の内蔵マグネットロール3の表面には円
周に沿って13図のように4つの磁極Sm(コート他)
、Na(搬送極)、5b(IA6極)、Nb(搬送極)
を着磁しである。On the surface of the built-in magnet roll 3 of the developing sleeve 1, there are four magnetic poles Sm (coating, etc.) along the circumference as shown in Figure 13.
, Na (transport pole), 5b (IA6 pole), Nb (transport pole)
is magnetized.
コートスリーブ2内のマグネットロール4の表面には同
じく円周に沿って略岬間隔に8つの磁極Nc * Sc
e Nd s 8d * Ne @ Ss e Nf
* 8f を着磁しである。磁極Ncはカット極と
して、後述する現像剤層厚規制部材としての非磁性ブレ
ード12に対向する。磁極Ndはプート極としてスリー
ブl・2の最接近部に位置する。他の磁極は搬送極であ
る。On the surface of the magnet roll 4 in the coat sleeve 2, there are also eight magnetic poles Nc*Sc at approximately cape intervals along the circumference.
e Nd s 8d * Ne @ Ss e Nf
*8f is magnetized. The magnetic pole Nc serves as a cut pole and faces a non-magnetic blade 12 as a developer layer thickness regulating member, which will be described later. The magnetic pole Nd is located closest to the sleeves 1 and 2 as a puto pole. The other magnetic pole is the transport pole.
コートスリーブ側マグネットロール4のプート極Nd
と現像スリーブ側マグネットロール2の;−磁極Sm
はほぼ向き合っているが正対してはおらず、極Ndに
対して極Sm は現像スリーブ1v回転方向に関し上
fILI4Iに中やずらせて位置させである。Coat sleeve side magnet roll 4 puto pole Nd
-magnetic pole Sm of the developing sleeve side magnet roll 2
The poles Sm are almost facing each other, but not directly facing each other, and the pole Sm is positioned offset from the upper fILI4I with respect to the rotational direction of the developing sleeve 1v.
現1装置aSri上記スリーブl・2を軸受する奥側と
手前@v@板5・6と、底板たる凹曲させた下ステイア
と、非磁性プレード12を保持させる上スティiと、該
上スティ8e)上面部からjj[スリーブlの上面部に
わ九る大きさの上面カバ一部側9とからなり、それ等の
4!r構成部材を互にねじ13等で結合して一個の容箱
として組立てられる。嬉5wJはその組立てられた容箱
の斜面図を示す。上面カバ一部@9は容箱内に必要部品
を組付は友後装着される。Current 1 device aSri includes the rear and front plates 5 and 6 that bear the sleeves 1 and 2, a concave lower stayer serving as the bottom plate, an upper stayer i that holds the non-magnetic plate 12, and the upper stayer. 8e) It consists of a part of the upper surface cover 9 which extends from the upper surface part to the upper surface part of the sleeve l, and these 4! The r component members are connected to each other with screws 13, etc., and assembled into a single container box. 5wJ shows a perspective view of the assembled container box. The top cover part @9 is attached after the necessary parts are assembled into the container box.
上スタイ80上面にti開口8aを形成してあり。A ti opening 8a is formed on the upper surface of the upper stay 80.
又前辺側は斜め下方に折り曲げてあり、その折り曲げ部
8bにアルミニウム族等の非磁性ブレード12をねじ止
め121して取付けである。−ロ8ari上面カバーS
材もの装着により常時は畠がれており、上面カバ一部材
を取外すと旙呈して該開口81を利用してl[装置内の
メンテナンスができる。The front side is bent diagonally downward, and a non-magnetic blade 12 made of aluminum or the like is attached by screwing 121 to the bent portion 8b. -Ro8ari top cover S
The opening 81 is always open when the upper cover is removed, and maintenance inside the device can be performed using the opening 81.
トナーTは下ステイアの略左半部、上ステイ8、非磁性
ブレード12.コートスリーブ2の略左半周面、及び側
板5・6で囲まれる6箱内空間をトナー貯w部として収
容される。The toner T is placed in approximately the left half of the lower stayer, the upper stay 8, and the non-magnetic blade 12. The six box spaces surrounded by the substantially left half circumferential surface of the coat sleeve 2 and the side plates 5 and 6 are accommodated as toner storage parts w.
61(第4・5図)は上記の一箱内トナー貯留部に対す
る補充用トナー逐次供給室で、前側板6の外函側に一体
に突出形成してあり、この供給室の端W6壁と3J(a
装置奥側板5間にトナー送り出し用スクリュー軸14を
回転自由に軸受15−15させて配設しである。ただし
スクリュ一部141は軸14の全長VCわたって形成せ
ず、1i161内側の軸部についてのみ形成しである。Reference numeral 61 (Figs. 4 and 5) denotes a toner sequential supply chamber for replenishing the toner storage section in one box, which is integrally formed protruding from the outer case side of the front plate 6, and is connected to the wall W6 at the end of this supply chamber. 3J(a
A toner delivery screw shaft 14 is freely rotatably disposed between bearings 15-15 between the rear side plates 5 of the apparatus. However, the screw portion 141 is not formed over the entire length VC of the shaft 14, but is formed only on the shaft portion inside 1i161.
そして七〇室61t)上面開口811(15図)に補充
用トナーを収容した容器の口部、或は容器連絡管や複写
機クリーナ部から戻ってくるりユーストナー戻し管が結
合されるものであるがWJKは省略し丸。And chamber 70 61t) The top opening 811 (Figure 15) is connected to the mouth of a container containing replenishment toner, or to a container connecting pipe or a used toner return pipe that returns from the copying machine cleaner section. But WJK is omitted and circled.
而して、後述((6)項)する駆動機構により現像スリ
ーブl及びコートスリーブ2が共に#!3図矢示時針方
向に回転駆動されると、コートスリーブ2v表面にトナ
ー貯留部のトナーTが非磁性プレード1−’2部に於て
適当な厚みにコートされる0次いでこのコートスリーブ
2と現1スリーブ1との対向最接近部に於てコートスリ
ーブ2による埃欅スリーブ1面への薄層のトナー塗布が
行なわれる。Then, both the developing sleeve 1 and the coating sleeve 2 are moved to #! by the drive mechanism described below (section (6)). When the coating sleeve 2v is rotated in the direction of the hour hand indicated by the arrow in FIG. A thin layer of toner is applied to the surface of the zelkova sleeve 1 by the coat sleeve 2 at the closest portion opposite to the current sleeve 1.
トナーの超層紘布のなされた現像スリーブ面は感光ドラ
ムD、!:O対同位置に回動してドラムDIIへドラム
面の潜像パターンに対厄して選択的に所鎮ジざ/ピング
して付着し潜像の顕像化がなされる。The surface of the developing sleeve covered with a super layer of toner is the photosensitive drum D,! :O rotates to the same position and adheres to the drum DII by selectively jizzing/pinging the latent image pattern on the drum surface, thereby making the latent image visible.
′iA像に使われなかつ九現像スリーブ1上のトナーは
スリーブ1の引続く回転でそのままコートスリーブ2と
の対向部に戻ってコートスリーブ2偶のトナ一層の新し
いトナーと適当にまざり合い、或はかき取られて現像ス
リーブ1面に再び各部均一な新鮮なトナー薄層が塗布形
成され、そのトナーw層が現像部へ再回動するサイクル
が繰り返えされ′〔潜像推持部材としてのドラムDWi
の潜像の連続的な311会かさなねる。With the subsequent rotation of sleeve 1, the toner on developing sleeve 1 that is not used for the iA image returns to the part facing coat sleeve 2, and the toner on coat sleeve 2 is appropriately mixed with new toner in a layer, or The toner layer is scraped off and a fresh thin layer of toner is applied uniformly to each part of the surface of the developing sleeve again, and the cycle of the toner W layer being rotated again to the developing section is repeated. drum DWi
Continuous 311 meeting of latent image.
コートスリーブ2と非磁性プレード12とのすき塘寸法
をda、 コートスリーブ2と現像スIJ −プlと
の対向最接近部のすきま寸法をdb、@像スリーブ1と
感光ドラムDとの対向最接近部のすきま寸法をdc と
すると、例えば、damO,8m?I。The gap size between the coat sleeve 2 and the non-magnetic plate 12 is da, the gap size between the coat sleeve 2 and the developer strip IJ-Pl is the closest to each other, and db is the gap between the image sleeve 1 and the photosensitive drum D. If the clearance dimension at the approach part is dc, for example, damO, 8m? I.
db m 1.0 am、コート磁極Nd=1000ガ
ウス。db m 1.0 am, coated magnetic pole Nd = 1000 Gauss.
同Sm −800ガウスの設定で、プートスリーブ2表
面には約0.9図厚のトナ一層塗布がなされ、現像スリ
ーブ1表面には約60μ厚程度の薄い均一なトナ一層塗
布がなされる。dcは0.1〜α3I!I11程度に設
定される。With the same setting of Sm -800 Gauss, a single layer of toner with a thickness of about 0.9 mm is applied to the surface of the puto sleeve 2, and a thin uniform layer of toner with a thickness of about 60 μm is applied to the surface of the developing sleeve 1. dc is 0.1~α3I! It is set to about I11.
トナー貯留部のトナーTri消費により逐次減少するが
、トナー送り出し用スクリュー軸140回転駆動にエリ
供給室61側から逐次にトナーが送り出されて補充され
る。Although it gradually decreases as the toner Tri in the toner storage section is consumed, toner is sequentially sent out from the edge supply chamber 61 side as the toner sending screw shaft 140 rotates and is replenished.
上記例のように現像スリーブ1に対するトナー薄層の形
成をブートスリーブ2で行なう方式にすると、嬉1図9
1装置のようにプレード102で直接に行なうものに比
べて上記各部のすlI書間隔寸法da・db を大き
く設定しても現像スリーブ1の表面には薄く均一なトナ
ー薄層をプロセススピードが大きくとも常に安定良好に
形成することができ、しか屯従来装置のような挾いすき
ま部に基因するゴミ・凝集トナー等のつかえによるトナ
ー塗布不良トラブルが人中に減少される。If the boot sleeve 2 is used to form a thin toner layer on the developing sleeve 1 as in the above example, then
Compared to the case where the process is carried out directly by the blade 102 as in the case of 1 device, even if the above-mentioned writing interval dimensions da and db of each part are set large, the process speed is high to form a thin and uniform toner layer on the surface of the developing sleeve 1. Both types can be formed stably and well at all times, and the problems of poor toner application due to dust and agglomerated toner getting stuck due to the gap between the clamps, as in conventional devices, are reduced.
(2)スリーブト2の回転駆動に伴なうトナーの器筒外
飛散防止構成(第3図)
スリーブ1−2は回転駆動に伴なう遠心力によりその表
面の塗布トナーの一部が大なり小なり離脱してトナー飛
散が認められる。この場合8に像スリ、−プ1側につい
てはその塗布トナ一層はコートスリーブ2@の充分なト
リボを有するトナーが転移して形成されるのでスリーブ
同転を相当に連くしても(即ちプロセススピードが相当
速い複合機に使用しても)スリーブの回転遠心力に伴な
うトナーの離脱飛散は少ないが、コートスリーブ211
については塗布トナ一層が厚く、ブラシ状で、トリメの
大龜〈ないトナーが存在するので、トナーの離脱飛散が
発生し易い。(2) Structure to prevent toner from scattering outside the cylinder due to the rotational drive of the sleeve 2 (Figure 3) A large portion of the toner applied to the surface of the sleeve 1-2 is caused by the centrifugal force caused by the rotational drive. Some separation and toner scattering is observed. In this case, image scraping occurs at step 8. On the side of step 1, the coated toner layer is formed by the transfer of toner having sufficient triboelectricity from coat sleeve 2, so even if the sleeve is rotated a considerable number of times (i.e., the process Coat Sleeve 211 (even when used in a multifunction machine with a fairly high speed) has little toner separation and scattering due to the rotational centrifugal force of the sleeve, but coat sleeve 211
In this case, the coated toner layer is thick, brush-like, and has no large amount of trim, so toner separation and scattering is likely to occur.
そこで本例の装置に歎てはその離脱トナーの粉箱外飛散
を防+l−するために、上面カバ一部剃9でコートスリ
ーブ2及び現像スリーブ1の上がをカバーさせ、更にカ
バ一部材9の先端縁をドラムDに近いところまで十分に
張り出し状態にさせた。Therefore, in order to prevent the separated toner from scattering outside the powder box in the device of this example, the top cover is partially shaved 9 to cover the tops of the coat sleeve 2 and the developing sleeve 1. The leading edge of No. 9 was made to extend sufficiently to a point close to the drum D.
父コートスリーブ2囲りに発生した離脱飛散トナーがコ
ートスリーブ2及び3A像ス゛リーブlの回転に伴なう
回転風に乗って上面カバ一部材9の裏面とスリーブ2・
l上面側聞の空間通路を通って鎖線矢示111/、i−
のように現像装w器精の前面開口と現像スリーブlとの
すきま部から器筒外へ出るのを防止するために、上記9
間通路の途中にコートスリーブ2と現像スリーブ1との
対向部をはげ境にして上記空間通路を左右に分つ板状フ
ィン(邪魔板)16を上辺部を上面カバ一部羽9の裏面
に取付は支持させ、下辺をコートスリーブ2と現像スリ
ーブlの対向部間近まで延出させて設けた。The scattered toner generated around the coat sleeve 2 rides on the rotating wind caused by the rotation of the coat sleeves 2 and 3A image sleeve 1, and is transferred to the back surface of the upper cover member 9 and the sleeve 2.
l Through the space passage on the side of the upper surface, the chain line arrow 111/, i-
In order to prevent the above-mentioned 9.
In the middle of the space passage, a plate-shaped fin (baffle plate) 16 that divides the space passage into left and right sides with the facing part of the coat sleeve 2 and the developing sleeve 1 as a bald boundary is installed on the back side of the upper cover part wing 9. The mounting was carried out in a supported manner, with the lower side extending close to the opposing portions of the coat sleeve 2 and the developing sleeve I.
即ち妨害部材たる上記のフイ716の存在によりコート
スリーブ2囲りに尭生じスリーブ回転風に乗つ良飛散ト
ナー風は途中フィン16面に尚って流れを邪魔されて弱
められたり、乱されたシする丸め飛散トナーはフィン面
で捕集さね器筒外への漏出飛散はほとんど阻1ヒされる
。フィン16r!スリーブ1又は2のいずれかにF辺を
接近させて、或は上記の空間通路に沿って複数個設ける
ようi(してもよい、同フィン16を設けず、上面カバ
一部材9とスリーブ2・lとの間の空間通路を絖くする
設計も試みたが、スリーブ回転風に乗つ几飛散トナー風
がそV狭い空間通路を比較的容易に通って一箱外スの漏
出飛散が与られ、トナーの漏出飛散防止効果はフィン1
6を設は九場合よりも愚か、つた。That is, due to the presence of the above-mentioned fin 716, which is an obstructing member, a ridge is formed around the coat sleeve 2, and the well-dispersed toner wind riding on the sleeve rotation wind is obstructed by the fin 16 surface on the way, and is weakened or disturbed. The rounded and scattered toner is collected on the fin surface, and leakage and scattering to the outside of the rabbet cylinder is almost prevented. Fin 16r! It is also possible to have the F side close to either the sleeve 1 or 2, or to provide a plurality of fins along the above-mentioned space passage.・We also attempted a design that created a space passage between the V and the V, but the scattered toner wind riding on the rotational wind of the sleeve passed through the narrow space passage relatively easily, causing leakage and scattering of the outside of the box. Fin 1 has the effect of preventing toner leakage and scattering.
Setting 6 is stupider than setting 9.
又スリーブ回転風に乗った飛散トナー風Fi現像スリー
ブ10両端部の端面と、器筒側板5・6内面との間の間
隔すきま部を通っても器筒外へ抜は出ようとする。In addition, the scattered toner carried by the rotating wind of the sleeve tends to be drawn out of the cartridge through the gap between the end surfaces of both ends of the Fi developing sleeve 10 and the inner surfaces of the side plates 5 and 6 of the cylinder.
そこで本例の装置ではそのす龜壕部を閉塞して該すきま
部からのトナーの粉箱外飛散も防屯する丸めに、と面カ
バ一部材9の裏面Q%現僚スy−ブ1の両端部端面とそ
れ等の側の容箱儒1[5・6間のすきま部に対応する部
分位置に下向きの細長片(細長フィン)17を現像スリ
ーブの端面半径方向にすきま部に入り込ませて設け、そ
の−長片17にモルトブレン等の細長のクッション性シ
ール材18を貼り付は支持させてスリーブ1の回転を障
害することなく上記のすきま部を閉塞状u VCさせた
。上記のシール劇たるモルトブレン等18はM!にスト
リップ片でなく現像スリーブ1の端面より−−り大きい
円形影線にして介入させて4よいが%現像スリーブ1を
6箱に組み付ける際押しちぢめながら組み付けるのが少
々面倒な為+例装置では上記のように細長ストリップ片
形態のものを上記のように設は喪。Therefore, in the device of this example, the back side of the face cover member 9 is made of a rounded shape that closes the gap and prevents the toner from scattering outside the powder box from the gap. Insert a downwardly directed elongated piece (elongated fin) 17 into the gap in the radial direction of the end surface of the developing sleeve at a position corresponding to the gap between the end faces of the developing sleeve and the other sides of the container box 1 [5 and 6]. A slender cushioning sealing material 18 such as maltbrene is adhered to and supported by the elongated piece 17 to close the gap without interfering with the rotation of the sleeve 1. The maltbren etc. 18 that is the seal drama above is M! It would be better to insert a circular shadow line larger than the end face of the developing sleeve 1 instead of a strip piece, but since it is a little troublesome to assemble the developing sleeve 1 while pushing it into the 6 box, it is difficult to assemble the developing sleeve 1 in the example device. As shown above, those in the form of elongated strips are installed as shown above.
以上のような処置構成によりスリーブの回転駆動に伴な
うト′ナーの粉箱外飛散はほとんど発生せず極めて高速
の複写機にも対応できるものである。With the above-described treatment structure, toner scattering outside the powder box due to the rotational drive of the sleeve hardly occurs, and can be applied to extremely high-speed copying machines.
(3) スリーブト20軸受部(第4・8図)現像ス
リーブl及びゴートスリープ2の各両端部の軸受10@
10,11@1iriその内部にトナーが侵入するとト
ナーの凝結により軸受としての回転性能が低下し、スリ
ーブ1・2の駆動が障害される。特に玉軸受はトナーの
侵入を生じ易い。(3) Bearing part of the sleeve 20 (Figures 4 and 8) Bearings 10 at both ends of the developing sleeve l and the goat sleeve 2
10, 11 @ 1iri If toner enters the inside of the bearing, the rotational performance of the bearing will be reduced due to condensation of the toner, and the driving of the sleeves 1 and 2 will be impaired. In particular, ball bearings are susceptible to toner intrusion.
軸受の現像装置内方側の側部をガえばオイルシールで閉
塞処置してもこの種の実家装置では稼動中にスリーブl
や20周面上のトナーや、トナー貯留部のトナーのスリ
ーブ端部方向へ寄せられる勾はかなり強いものであるか
ら長時間のうちにはトナーがオイルシールを通り抜けて
軸受内に侵入する現象がみられる。Even if the inner side of the developing device on the bearing is blocked with an oil seal, in this type of home-based device, the sleeve l will leak during operation.
Since the gradient of toner on the circumferential surface and toner in the toner storage section toward the end of the sleeve is quite strong, there is a phenomenon in which toner passes through the oil seal and enters the bearing over a long period of time. Be looked at.
そこで本例の装置は軸受に対するトナーの侵入を厳に防
止して長期にわたってスリーブの回転性力tjL好に安
定に持続されるように工夫を加えである。Therefore, the device of this embodiment is designed to strictly prevent toner from entering the bearing and to maintain the rotational force tjL of the sleeve stably for a long period of time.
先ずlj像ススリーブ1内部マグネットロール3と次の
ようにして−ユニット化されている。即ち8に像スリー
ブlの奥側の端部開口は、外面中央部に比較的長さの長
い充実軸191を形成し、内面中央部の凹部に軸受19
2を嵌入保持させた端板(フランジ円盤)19を績めて
一体に結合させることによシ閉塞しである。マグネット
ロール3は中心軸20に一体に結合させてあシ、その軸
20の奥側端部201の突出長さは短かく1手前側端部
202の突出長さは比較的長くしである。而してそのマ
グネットロール3を現像スリーブ1の手前側端部開口か
ら挿入してマグネットロール3g)奥側軸部201を現
像スリーブlの奥側端板19内面中央部の軸受192に
嵌入保持させた状態にする6次いで外面中央部に比較的
長さの長い筒軸211t−形成し、内面中央部の凹部に
軸受212を嵌入保持させた端板21を、筒軸211内
にマグネットロール3の手前側軸202を嵌入させ。First, the lj image sleeve 1 and the internal magnet roll 3 are unitized as follows. That is, at 8, the rear end opening of the image sleeve l forms a relatively long solid shaft 191 at the center of the outer surface, and a bearing 19 is formed in the recess at the center of the inner surface.
The end plate (flange disk) 19 into which the flange 2 is fitted and held is folded and joined together to close the flange. The magnet roll 3 is integrally connected to a central shaft 20, and the protruding length of the rear end 201 of the shaft 20 is short and the protruding length of the near end 202 is relatively long. Then, the magnet roll 3 is inserted through the front end opening of the developing sleeve 1, and the back shaft portion 201 of the magnet roll 3g) is fitted and held in the bearing 192 at the center of the inner surface of the back end plate 19 of the developing sleeve l. Next, the end plate 21 with a relatively long cylinder shaft 211t formed in the center of the outer surface and the bearing 212 fitted and held in the recess in the center of the inner surface is inserted into the cylinder shaft 211 and the magnet roll 3 is placed inside the cylinder shaft 211. Insert the near side shaft 202.
且つその軸の基部を端板21の内面中央部の軸受212
に合致嵌入させてIA(aスリーブlの手前側開口に嵌
め付けて一体に結合させる。即ち、iグネットロール3
ri現像スリーブl内に奥側及び前側の端板19・21
で密閉されて内蔵され、現像スリーブ1はそのマグネッ
トロール30両端部の軸201・202を中心に軸受1
92・212、端板19・21を介して回転自由の構造
で全体−ユニット化させである。In addition, the base of the shaft is connected to a bearing 212 at the center of the inner surface of the end plate 21.
The IA (a sleeve 1) is fitted into the front opening of the sleeve 1 and connected together. That is, the i magnet roll 3
Inside the ri developing sleeve l, there are end plates 19 and 21 on the back side and front side.
The developing sleeve 1 is built in a bearing 1 with the shafts 201 and 202 at both ends of the magnet roll 30 as the center.
92, 212, and the end plates 19, 21 are used to freely rotate the structure, and the whole unit is formed into a unit.
コートスリーブ2についても上記と同構造で内部マグネ
ットロール4と一ユニット化されている。The coat sleeve 2 also has the same structure as described above, and is integrated into one unit with the internal magnet roll 4.
即ち22はコートスリーブ2についての奥側端板。That is, 22 is the back end plate of the coat sleeve 2.
221はその端板外−中央部の充実軸、222は内面中
央部の凹部に嵌入保持させ九軸受、23はマグネットロ
ール4の中心軸で、マグネットロール4はこの軸と一体
である。231・232は線軸のロール両端側突出部、
24は前側端板、241はその端板外面中央部oWi軸
、242は内面中央部の凹部に°嵌入保持させた軸受を
示す。Reference numeral 221 denotes a solid shaft at the outside-center portion of the end plate, 222 a nine bearing fitted into and held in a recess at the center of the inner surface, and 23 a central axis of the magnet roll 4, which is integral with this shaft. 231 and 232 are protrusions on both ends of the roll of the wire shaft;
Reference numeral 24 indicates a front end plate, 241 indicates an oWi axis at the center of the outer surface of the end plate, and 242 indicates a bearing that is fitted and held in a recessed portion at the center of the inner surface.
以下現像スリーブユニットと配した場合には上記現像ス
リーブlとマグネットミール3について(Q−z二?/
)としての組立て構造体を意味するものとし、又コート
スリーブユニットと記した場合には同じく上゛記コート
スリーブ2とマグネットロール4についての一ユニット
としての組立て構造体を意味するものとする。The following describes the above-mentioned developing sleeve l and magnet meal 3 when used with a developing sleeve unit (Q-z2?/
), and when it is referred to as a coat sleeve unit, it also means an assembled structure as a unit for the above-mentioned coat sleeve 2 and magnet roll 4.
現像スリーブユニットはその両端側の突出軸191・2
11の基部を夫々軸受1G−10を介して現像装置粉箱
の奥側板5と前側板6との間に回転自由に支持させであ
る。又コートスリーブユニットについても同様にその両
端側の突出軸221・241を夫々軸受11・11を介
してIA鐵装置器容箱奥側板5と前側板6との間に回転
自由に支−11内に対するトナーの侵入を長期にわ九っ
て厳に防止するために次のような軸受構成にしである。The developing sleeve unit has protruding shafts 191 and 2 on both ends thereof.
11 are rotatably supported between the rear side plate 5 and the front side plate 6 of the powder box of the developing device through bearings 1G-10, respectively. Similarly, the protruding shafts 221 and 241 at both ends of the coat sleeve unit are rotatably mounted in the support 11 between the back side plate 5 and front side plate 6 of the IA equipment container box via bearings 11 and 11, respectively. In order to strictly prevent toner from penetrating into the body over a long period of time, the following bearing structure is used.
即ち、各軸受10−10.11・11を夫々樹脂製の筒
形ケーシングjll内にインサートして保持させ、又そ
れ等のケーシングの現像鋏置容箱内方憫の開口部にはオ
イルシール112を嵌入させた形態にする。そしてその
軸受及びオイルシール内蔵減ケージ/グ111を現像懐
置容箱の奥側板5と前側板6とに保持させ、夫々の内置
軸受10・10,11・11に現像スリーブユニットの
両端側の軸191・211、コートスリーブユニットの
両端側の軸22゛1・241を軸受させると共に、 F
Aeスリーブユニット及びコートスリーブユニットの各
端1及び第2端板19・21,22・24の外面に軸1
91・211・221・241と同心に環状囲j111
193・213・223・243を形成し、その各環状
凹婢内に上記の軸受及びオイルシール内蔵軸受ケーシン
グ111の内端側を入シ込ませた形態にしたものである
。That is, each of the bearings 10-10, 11, and 11 is inserted and held in a resin-made cylindrical casing, and an oil seal 112 is installed in the opening of the inner side of the developing scissor holding box of each of the casings. Make it into a form in which it is inlaid. Then, the bearing and oil seal built-in reducing cage 111 are held on the back side plate 5 and front side plate 6 of the developing storage container box, and the internal bearings 10, 11, 11 are attached to both ends of the developing sleeve unit. The shafts 191 and 211 bear the shafts 22'1 and 241 on both ends of the coat sleeve unit, and F
A shaft 1 is attached to the outer surface of each end 1 and second end plate 19, 21, 22, 24 of the Ae sleeve unit and coat sleeve unit.
91, 211, 221, 241 and concentric circular enclosure j111
193, 213, 223, and 243 are formed, and the inner end side of the bearing casing 111 with a built-in bearing and oil seal is inserted into each annular recess.
即ち上記のような軸受構成にすると、各軸受10・II
Q、11 @ 11は筒形ケーシング111及びオイル
シール112の存在により[接的なトナーまみれが防止
されると共に、各筒形ケーシング111の現像装置容箱
内方飼が現像スリーブユニット及びコートスリーブユニ
ットの各両側端板19・λ1.22・24の外面に形成
した環状凹溝193・213−223・243に入り込
んだ構造であるからトナーQケーシング111内端面側
への廻り込みが防止されるか、廻り込みがあってもその
量は少なくてオイルシール112に対するトナー作用圧
が小さく、従ってトナーがオイルシールを通り抜けてケ
ーシング内に入り軸受lO・1O111・11に作用す
る現象が除去され、軸受lO・10,11・11内への
トナーの侵入トラブルが長期にわたって厳に防止される
ものである。又上記軸受部人に込み構成によりその入り
込み分塊像装置の全体を小型化できる効果もある。In other words, if the bearing configuration is as described above, each bearing 10 and II
Q, 11 @ 11 is due to the presence of the cylindrical casing 111 and the oil seal 112 [direct toner smearing is prevented, and the inside of the developing device container box of each cylindrical casing 111 is connected to the developing sleeve unit and the coat sleeve unit. Because the toner Q has a structure in which it enters the annular grooves 193, 213-223, and 243 formed on the outer surfaces of the respective side end plates 19, λ1.22, and 24, it is possible to prevent the toner Q from going around to the inner end surface side of the casing 111. Even if there is rotation, the amount is small and the toner acting pressure on the oil seal 112 is small. Therefore, the phenomenon in which toner passes through the oil seal and enters the casing and acts on the bearings 1O, 1O, 111, and 11 is eliminated, and the・The problem of toner intrusion into the parts 10, 11, and 11 is strictly prevented over a long period of time. Furthermore, the recessed structure of the bearing portion has the effect of making the entire recessed agglomeration image device compact.
一方、トナー貯誓部のトナーTがコートスリーブユニッ
トの奥側端板22と(至)箱奥側板5との間のすき間部
、及び前側端板24と器箱前側板6との間のすき間部を
通って現像スリーブユニット側、へはみ出し、そのトナ
ーが飛散したり、現像スリーブ1やコートスリーブ2に
とらえられて現象スリーブl上のトナーの厚味が不均一
になったり、まだらになったシするのを防1卜する丸め
に1本例の装置は上記のすき間部にモルトブレン眸のク
ツショ/材製の円盤状シール*425を介入させること
によりすき間を閉塞させた。この場合コートスリーブ2
0回転駆動時の奥側端板22、前側端板24と上記シー
ル材25・25との摺動に伴なうシール材25・25の
摩損醇を防止するためにクール材25・25の端板22
・24側の間にはポリエチレン樹脂9ポリアセ・民→ル
樹脂畔の低摩擦質のスラストシー)251−251をラ
イネートする等して存在させである。On the other hand, the toner T in the toner storage section is applied to the gap between the back end plate 22 of the coat sleeve unit and the back side plate 5 of the box, and the gap between the front end plate 24 and the front side plate 6 of the box. The toner protrudes through the toner to the developing sleeve unit side, and the toner scatters, or is caught by the developing sleeve 1 or coat sleeve 2, causing the thickness of the toner on the sleeve l to become uneven or mottled. In this device, a disc-shaped seal *425 made of maltbrene shoe/wood is inserted into the gap to close the gap. In this case coat sleeve 2
In order to prevent the sealing materials 25, 25 from being worn out due to sliding between the back end plate 22, front end plate 24 and the sealing materials 25, 25 during 0-rotation driving, the ends of the cool materials 25, 25 are Board 22
・Between the 24 sides, a polyethylene resin 9 polyacetate resin ridge low friction thrust seam) 251-251 is placed as a lining.
このようにシール材25・25を介在させることにより
上記のようなトナーのはみ出し及びそれに伴なうトラブ
ルが防止されると共に、コートスリーブユニットの両端
部の軸受ケーシング111のトナーまみれが防止され、
軸受11@11に対するトナー侵入トラブルがより効果
的に防止される。By interposing the sealing materials 25, 25 in this manner, the above-mentioned toner protrusion and related troubles are prevented, and the bearing casings 111 at both ends of the coat sleeve unit are prevented from being covered with toner.
The trouble of toner intrusion into the bearing 11@11 is more effectively prevented.
iA像x!J−ツユニット及ヒコートスリーフエニッ、
トの現像輌m容箱に対する組み付けは一般にははめ殺し
にしてしまうのが#1とんどであるが1組み込み・メン
テナンス等の上では抜き差し自在の構成がよい。iA statue x! J-tsu unit and Hikoto three leaf any,
Generally speaking, when assembling it into the developer box, it is best to fit it completely, but it is better to have a structure that allows it to be inserted and removed freely for installation and maintenance.
第9図は従来性なわれている抜き差し自在の組み付は構
成を示すもので、現像装[41箱の奥側板5(第9図(
a))と前側板6(同(b))とに夫kjA(IIスリ
ーブユニットとコートスリーブユニットの軸受部材!嵌
入する2個宛の透孔1・b11/・b/を形成し、更に
奥側板5については板5の縁の一部を切欠いて透孔暑に
通じるスリット透孔Cと。Figure 9 shows the configuration of the conventional removable and removable assembly.
a)) and the front plate 6 (same as (b)) are formed with through holes 1, b11/, b/ for the two fittings (bearing members of the II sleeve unit and coat sleeve unit!), and further deep. Regarding the side plate 5, a part of the edge of the plate 5 is cut out to form a slit hole C that leads to the hole.
透孔1とbを互に連絡するスリット透孔dを形成する。A slit hole d is formed which interconnects the holes 1 and b.
スリット透孔C及びdの幅寸法は現像スリーブユニット
及びコートスリーブユニットの奥側V軸@t 9 t・
221が通過し得る幅寸法とする。The width dimensions of slit holes C and d are as follows: V-axis on the back side of the developing sleeve unit and coat sleeve unit
221 can pass through.
而して−り配のような94仮5−6を用いて組立てられ
ている現g1装を器筒に、先ずコートスリーブユニット
についてその手前側軸*241を6箱前側板6の透孔b
’vc該伺板の内側から差し込んで側板外向側へ突出さ
せ1次いで奥側軸部221を容箱央側板5の縁部のスリ
ット透孔Cに対応させてそのスリット透孔C→透孔a→
連絡スリット透孔dを通過させて透孔すに位置させる。Therefore, using the current G1 package assembled using the 94 temporary 5-6 as shown in the rear panel, first insert the front shaft *241 of the coat sleeve unit into the through hole b of the front side plate 6 of the six boxes.
'vc Insert from the inside of the cover plate and protrude outward from the side plate, then align the back shaft part 221 with the slit hole C at the edge of the container box center side plate 5, and make the slit hole C→through hole a. →
Pass through the communication slit through hole d and position it in the through hole.
セして透孔b・h′から側板5・6の外側に突出し九コ
ートスリーブユニットの両端軸部221・241に夫々
軸受部材を外嵌し、その外嵌軸受部材を夫々側板5・6
の透孔hub’に嵌入して抜止め処置する。これにより
コートスリーブユニットが器筒の奥側及び前側の側板5
・6間に軸受を介して回転自由に組み付は状−となる。The externally fitted bearing members are protruded from the through holes b and h' to the outside of the side plates 5 and 6, respectively, and fitted onto the shaft portions 221 and 241 at both ends of the nine-coat sleeve unit, respectively.
It fits into the through hole hub' to prevent it from coming out. This allows the coat sleeve unit to be attached to the back and front side plates 5 of the container.
・It can be assembled freely through bearings between 6 and 6 to form a shape.
次いで現像スリーブユニットについてその手前側軸部2
11を基箱前側板6の透孔a/に該側板の内側から差し
込んで側板外面側へ突出させ、次いで奥側軸部191を
機箱奥側wi5のスリット透孔Cに対応させてその通路
Cを通過させて透孔aに位置させる。そして透孔暑・a
/から側板5e6の外側に突出したi像スリーブユニッ
トの両端軸部191・211に夫々軸受部材を外嵌し、
その外嵌軸受・部初を夫々側板5・6の透孔a・1′に
嵌入して抜止め処置する。これにより現像スリーブユニ
ットが6箱の奥側及び前側の側板5・6間に軸受部材を
介して回転自由に組み付は状態となる。Next, remove the front shaft portion 2 of the developing sleeve unit.
11 is inserted into the through hole a/ of the front side plate 6 of the base box from the inside of the side plate so that it protrudes to the outer surface side of the side plate, and then the back side shaft part 191 is made to correspond to the slit through hole C of the back side wi5 of the machine box and the passage C is made. is placed in through hole a. And transparent heat a
Bearing members are fitted onto both end shaft portions 191 and 211 of the i-image sleeve unit protruding from / to the outside of the side plate 5e6, respectively,
The outer fitting bearing parts are fitted into the through holes a and 1' of the side plates 5 and 6, respectively, to prevent them from coming off. As a result, the developing sleeve unit is freely rotatably assembled between the rear and front side plates 5 and 6 of the six boxes via the bearing member.
上記の両スリーブユニットの組み付は後、奥側板5の透
孔1とbを結ぶ連絡スリット透孔d、及び必*VC応じ
て透孔麿のスリット透孔Cについて盲板を取付けて塞き
゛処置する1組付は九スリーブユニットの職外しは上記
と逆の手順で行なわれる。After assembling the above-mentioned sleeve units, the connecting slit d connecting the through holes 1 and b in the back side plate 5, and the slit through hole C of the through hole C, should be closed by installing a blind plate. The first assembly and removal of the nine-sleeve unit are performed in the reverse order to the above.
ところで上記のような組付は構成には次のような問題が
ある。However, the above assembly has the following problems.
1 奥側板5についてその板面にri第9図(a)のよ
うにスリット透孔C・透孔a・連絡スリット透孔、d・
透孔すの一連からなる全体奥深い切込みが形成されるの
で強度的に問題がある。特にコートスリーブユニット及
びgL潅ススリーブユニット組み込んだ場合rこ於て両
ユニットの重量、両ユニットの内蔵マグネットロール同
十の磁気引き合い力により上記奥深い切込みc −a
−d −bを境とする奥側板5のヒ側部分と下側部分と
が透孔すを中心に開き気味となり、その結果両スリーブ
ユニットの組み付は時雨ユニットの所定のすきま間隔d
bがうまく出ない。1. On the back side plate 5, as shown in Fig. 9(a), slit through hole C, through hole a, connecting slit through hole, d,
There is a problem in terms of strength because a series of through holes form a deep cut. In particular, when the coat sleeve unit and the gL irrigation sleeve unit are installed, the weight of both units and the magnetic attraction force of the built-in magnet rolls of both units cause the deep cut c - a.
-d -b The A side part and the lower part of the back side plate 5 are slightly opened around the through hole, and as a result, both sleeve units can be assembled at the predetermined clearance interval d of the rain unit.
b doesn't come out well.
−連絡スリット透孔dやスリット透孔Cを塞ぐに尚抄、
単に盲板を轟てがいねじ1トめする等の処置では完全な
シール塞ぎはなされず、容箱内のトナーが盲板と側板5
との細かいすきまからもれ出るので%癌ぎ処置にかな°
りの工夫を要する。- Shosho to close the connecting slit hole d and slit hole C,
Simply tightening the blind plate with one screw will not seal it completely, and the toner inside the container will leak between the blind plate and the side plate 5.
Since it leaks from the small gap between
Requires further ingenuity.
又、剥えば第9図(C)のように奥側板5について透孔
1とbとを同図(a)のような連絡スリット孔dで連通
させず、両道孔1・bに対するスリーブユニット軸嵌入
寮内用スリット透孔リツト孔透’に設けた形轢にするこ
とにより第9図(a)の形態のものとは異なり板50強
度低下が軽減され、又両スリーブユニットの組み付は時
の所定すきま間隔dbも出しやすい、しかし該奥側板5
と下ステイアとの相互取付は方法や、下方にあけたスリ
ット透孔d’tl)閉本処置に細かしさがある。Also, if it is peeled off, as shown in FIG. 9(C), the through holes 1 and b of the back side plate 5 are not communicated through the communication slit hole d as shown in FIG. Unlike the form shown in Fig. 9(a), the reduction in the strength of the plate 50 is reduced by using the form provided in the slit hole for inside the dormitory, and the assembly of both sleeve units is made easier at the time. It is easy to obtain a predetermined clearance interval db, but the rear side plate 5
There are details in the method of mutual attachment of the and lower stayer, and in the procedure for closing the book through the slit hole drilled at the bottom.
そこで本fi@蝋は現像スリーブエニットとコートスリ
ーブユニットの3に像装置器筒への組み込みについて上
記のような問題を生じないように工夫し〜である。これ
を第5−8図で説明する。即ち、第6図(a)のように
6箱の奥側板5についてriM像ス17−7’ユニツト
とコートスリーブユニットの各奥側軸受部@(本例では
軸受10・11及びオイルシール112をインサートし
im形ケージ/グ111を指す、J−J下軸受部@11
1と記す)が嵌入する2個の透孔51・5bを形成し、
又板5の縁の一部を切欠いて透孔5謹に通じるスリット
透孔5cを形成する。透孔5bは第9813(a)のよ
うな透孔1との連絡スリット透孔d+、同図(C)のよ
うなスリット透孔d′を形成せず、孤立の透孔とする。Therefore, this fi@wax has been devised to prevent the above-mentioned problems from occurring when the developing sleeve enit and coat sleeve unit 3 are incorporated into the imaging device barrel. This will be explained with reference to Figures 5-8. That is, as shown in FIG. 6(a), each rear side bearing part of the RIM image bearing unit 17-7' unit and the coat sleeve unit (in this example, the bearings 10 and 11 and the oil seal 112) is Insert and point to im type cage/g 111, J-J lower bearing part @11
Form two through holes 51 and 5b into which the holes (denoted as 1) are fitted,
Also, a part of the edge of the plate 5 is cut out to form a slit hole 5c communicating with the hole 5. The through hole 5b does not have a communicating slit hole d+ with the through hole 1 as in No. 9813(a), nor a slit through hole d' as in FIG. 9813(C), but is an isolated through hole.
又前側板6については第6図(h)に示すようrこ現像
スリーブユニットの手前側軸受部材111が嵌入する透
孔6aと、コートスリーブユニットのスリーブ2の外径
よりも中や大径の透孔6bを形成しである。As shown in FIG. 6(h), the front plate 6 has a through hole 6a into which the front bearing member 111 of the developing sleeve unit fits, and a hole 6a with a medium or larger diameter than the outer diameter of the sleeve 2 of the coat sleeve unit. A through hole 6b is formed.
而して上記のような孔あけ処理をし九側板を用いて組立
てられている現像装置6箱(第5図)について、先ずそ
の器筒奥側板5の内直の透孔5b囲りに前記(3)項で
述べた円盤状クッション性シール@25とスラストシー
ト251の貼り合せ材を予め貼り付けておく0次いでコ
ートスリーブユニットについて第7図示のようにその手
前側端部を基箱前側板6の大径透孔6bVc#側板の内
側から差し込んで皺側板6の外面側へ適幽長さ突出させ
ることによシコートスリーブユニットの実側軸部221
を器筒内側に位置させ、次いでその細部2211!箱央
儒1f5の透孔5bに位置させてコートスリーブユニッ
トをその実測端板19がスラストシート251面に幽る
まで奥側板5方向へ引寄せることにより該コートスリー
ブユニットの奥側軸部221を奥側板50透孔5bから
(至)軸外〃へ突出させた状態にする(llI8bil
り、次いでその細部221に軸受部材111を外嵌し、
その外嵌軸受部材111を奥側板5の透孔5bに嵌入さ
せる。一方前何板6の大径透孔6bから機箱外方へ突出
状部にあるコートスリーブユニットの手前側軸部241
には、大径透孔6bに嵌合する円盤状蓋板62の中央部
に嵌着し丸軸受部材111t−外嵌する。蓋板62E)
内面側には予め円盤状クッショ、ン性シール材25とス
ラストシー)251v貼り合せ材を貼り付は処理しであ
る。そしてその軸受部1f4111を嵌着し喪量板62
を前側板60大径透孔6bK妖合させる。奥側板5の透
孔5bkこ嵌入し丸軸受部@1!1及び前側板6の大径
透孔6bKf11人し九蓋板62は適嶋な手段で抜は止
め処置する。これによりコートスリーブユニットが6箱
の奥側と前側の側板5・6間に軸受11,111を介し
て回転自由に組み付ゆ状態となる。For the six developing device boxes (FIG. 5) that have been drilled as described above and are assembled using nine side plates, first the above-mentioned hole 5b is placed around the inside straight hole 5b of the back side plate 5 of the container. Attach the disc-shaped cushioning seal @ 25 and the thrust sheet 251 described in section (3) in advance.Next, as for the coat sleeve unit, as shown in Figure 7, the front end of the coat sleeve unit is attached to the front side plate of the base box. The real side shaft portion 221 of the coated sleeve unit is inserted from the inside of the large diameter through hole 6bVc# of 6 and protrudes to the outer surface of the wrinkled side plate 6 by an appropriate length.
is located inside the barrel, and then its details 2211! By positioning the coat sleeve unit in the through hole 5b of the box center 1f5 and pulling the coat sleeve unit toward the back side plate 5 until the measured end plate 19 is flush with the thrust sheet 251 surface, the back side shaft portion 221 of the coat sleeve unit is moved. Make the back side plate 50 protrude from the through hole 5b (to) off-axis (llI8bil
Then, the bearing member 111 is fitted onto the detail 221,
The externally fitting bearing member 111 is fitted into the through hole 5b of the back side plate 5. On the other hand, the near side shaft portion 241 of the coat sleeve unit is located at a portion protruding outward from the large diameter through hole 6b of the front plate 6.
In this case, the circular bearing member 111t is fitted into the center of the disc-shaped cover plate 62 that fits into the large-diameter through hole 6b. Lid plate 62E)
A disc-shaped cushion, a rubber sealing material 25, and a thrust seam 251v bonding material were previously applied to the inner surface. Then, the bearing part 1f4111 is fitted and the loss plate 62
The large diameter through hole 6bK of the front plate 60 is aligned. The through hole 5bk of the back side plate 5 is inserted into the round bearing part @1!1 and the large diameter through hole 6bkf11 of the front side plate 6 is inserted, and the cover plate 62 is prevented from coming out by appropriate means. As a result, the coat sleeve unit is assembled to be freely rotatable between the back and front side plates 5 and 6 of the six boxes via the bearings 11 and 111.
次いで現像スリーブユニットについてその手前側軸部2
11を容箱前側板6の透孔6mに#側板の内側から差し
込んで@板外面側へ突出させ(嬉8図)、次いで奥側軸
部191を奥側板5の縁部のスリット透孔5Cに対応さ
せてそのスリット透孔5Cを通過させて透孔5aに位置
させる。そして透孔5a・6aから1111板5・6の
外側に突出した現像スリーブユニットの両端軸部191
・211に夫々軸受部@111−111を外嵌し、次い
でその外嵌軸受部材111・111を夫々側板5・6の
透孔5a・6aKm人して抜止め処置する。Next, remove the front shaft portion 2 of the developing sleeve unit.
11 into the through hole 6m of the front side plate 6 of the container box from the inside of the # side plate so that it protrudes to the outside of the plate (Fig. It passes through the slit hole 5C and is positioned in the hole 5a corresponding to the slit hole 5C. Both end shaft portions 191 of the developing sleeve unit protrude from the through holes 5a and 6a to the outside of the 1111 plates 5 and 6.
・Fit the bearing parts @111-111 onto the outer parts of the bearing members 111 and 111, respectively, and then take measures to prevent the externally fitted bearing members 111 and 111 from coming out by inserting them into the through holes 5a and 6a of the side plates 5 and 6, respectively.
これによりIA像ススリーブユニット6箱の奥側と前側
の側板5・6間に軸受10・lOを介して回転自由に組
み付は状態となる。As a result, the IA image sleeve unit 6 box is freely rotatably assembled between the rear and front side plates 5 and 6 via the bearings 10 and 10.
即ち4Hv税像装置は現像スリーブユニット、コートス
リーブユニットの現像装置6箱への組み込みを上gvよ
うな構成!!領にしたから、側板強度が充分に保持され
る1両スリーブユニットの所定すきま間隔dbft出し
やすく、又その間隔が畏期にわたって安定に保持される
1組み付け、取り外しく取り外しは上記の組み付けとは
逆の手順)が容易で、再組み付けのときの両スリーブユ
ニットの相互位置関係の再現性も良好である。トナーも
れもない、等の利点があり、前述の諸問題が全て解消さ
れる。In other words, the 4Hv imager has a configuration similar to the above GV, in which the developing sleeve unit and coat sleeve unit are incorporated into the 6 developing device boxes! ! Since the side plate strength is maintained sufficiently, it is easy to obtain the specified clearance interval dbft between the two sleeve units, and the interval is maintained stably over a long period of time.1 Assembly and removal are the opposite of the above assembly. This procedure is easy, and the reproducibility of the mutual positional relationship of both sleeve units during reassembly is also good. There are advantages such as no toner leakage, and all of the above-mentioned problems are solved.
トナーもれ防止効果について詳述すると、第9図(a)
や(C)に示したような構成の側板5ではスリット状の
開口d+d’をトナーもれのない様塞ぐのは極めて国電
であるが、丸い開口6bを丸い蓋部′板62で嵐°いだ
場合獣舎長さを2〜3%とっておけばトナーもt′Lは
発生しない、更にコートスリーブ、ユニットの端板22
・24と凶報側板5・6とのす1ま空間からのfJ4像
スリーブユニット側へのトナー奄れを防ぐ島本例のg4
像装置ではそのすきt!2!間をモルトプレ/(シール
材)25にて塞いでいるが、9図に示すような側板構成
では、奥側板5と前側板60間隔内でコートスリーブユ
ニットヮ)Llffおぼえ、あい1,1板5.6Iはコ
ートスリーブユニット2の奥側と前側の端板22・24
の対角線の長゛さ、即ち第8図に示すLlの長さが必要
となシ、シール@たるモルトプレ/25でうめなければ
ならない空間が大きくなる。The effect of preventing toner leakage is explained in detail in Fig. 9(a).
In the side plate 5 having the configuration shown in FIGS. 1 and 2C, it is very common to close the slit-shaped openings d+d' to prevent toner leakage, but the round opening 6b is closed by the round lid plate 62. In that case, if you set aside 2 to 3% of the animal housing length, toner t'L will not occur, and the coat sleeve and end plate 22 of the unit.
・G4 of Shimamoto example prevents toner from spilling into the fJ4 image sleeve unit side from the space between 24 and the bad news side plates 5 and 6.
When it comes to imaging devices, I love that! 2! However, in the side plate configuration shown in FIG. .6I are the back and front end plates 22 and 24 of the coat sleeve unit 2.
Since the length of the diagonal line of , that is, the length of Ll shown in FIG. 8 is not required, the space that must be filled with the seal@moltpre/25 becomes large.
又、モルトプレ/をちぢめた状態で、コートスリーブユ
ニットをセットしなければならず、何度もコートスリー
ブユニットの抜自差しを繰り返すと、モルトブレン25
が剥れ九り、スラストシート251が傷んだりし易い。In addition, the coat sleeve unit must be set with the Malt Pret folded, and if you repeatedly pull out and insert the coat sleeve unit, the Malt Blen 25
The thrust sheet 251 is likely to peel off and be damaged.
第7・8図の如くコートスリーブユニットをセットする
形式ではモルトプレ/25をちぢめとおき、それからセ
ットするといった動作が不要であり、組立ても容易であ
る。In the method of setting the coat sleeve unit as shown in FIGS. 7 and 8, it is not necessary to shrink the malt pre/25 and then set it, and the assembly is easy.
(5) スクリュー軸0ブレード等vIIR付け(第
3・4図)
前項の要領で現像スリーブユニット及びコートスリーブ
ユニットを現葎装置容箱に組み付は喪後、トナー送り出
し用スクリュー軸14についてこれを軸受15・15に
より回転自由に支承させて容箱内に組み付ける。又上ス
テイの斜め下方折り曲げ部8bに非磁性ブレード12及
びすくい部材2626 をねじ121・121で共締
めして取付は保持させる。この場合ブレード12はその
下辺とコートスリーブ2との間に所定のす′#iま寸法
d1が形成されるように位置−節してねじ止める。すく
い部材26・26は先端辺をコートスリーブ20両端部
面に軽く振触或は接近させて配設し九トナーかき落し板
でTo#)%これについては別項((7) JJ )で
説明する。 。(5) Attaching the screw shaft 0 blade, etc. vIIR (Figures 3 and 4) After assembling the developing sleeve unit and coat sleeve unit to the developing device container box as described in the previous section, attach this to the screw shaft 14 for toner delivery. It is rotatably supported by bearings 15 and assembled into the container box. Further, the non-magnetic blade 12 and the rake member 2626 are fastened together with the screws 121, 121 to maintain their attachment to the diagonally downward bent portion 8b of the upper stay. In this case, the blade 12 is positioned and screwed so that a predetermined distance d1 is formed between its lower side and the coat sleeve 2. The scooping members 26 are disposed so that their tip edges are lightly shaken or close to both end surfaces of the coat sleeve 20, and are used to scrape off toner with a toner scraping plate.This will be explained in a separate section ((7) JJ). . .
以上のような一翰内への新装部材の組み付は後、孤面側
に前記(2)項で説明した板状フィン16%−長シール
材18を取付けた上面カバー8@9を6箱上部にか゛ぶ
せて上スティ8にねじ止める。After assembling the new parts into one holder as described above, six boxes of top covers 8@9 are installed with the plate-shaped fin 16%-long sealing material 18 described in section (2) above on the arc side. Put it over the top and screw it onto the upper stay 8.
又現像スリーブユニットについて#i箱央@板5から外
方へ突出している軸部191と、!il!箱前側板前側
板6方へ突出している筒軸211とに夫々ベアリング2
71・271を介してスペーサコロ27・27を回転自
由に取付は支持させる。このスペーサ:1027−27
は感光ドラムりの両端部に当接してjji像スリスリー
ブ1ラムDとのすきま間隔寸法dcを常時所定寸法に維
持する。Also, regarding the developing sleeve unit #i box center @ shaft portion 191 protruding outward from the plate 5! Il! Bearings 2 are attached to the cylindrical shaft 211 protruding toward the 6 directions of the box front side plate and the front side plate 6, respectively.
The spacer rollers 27 and 27 are rotatably mounted and supported via the spacer rollers 71 and 271. This spacer: 1027-27
contacts both ends of the photosensitive drum to maintain the gap dc between the image sleeve 1 and the ram D at a predetermined value at all times.
なお1本的の現像装置のような所請ジャ/ビ/グ現像で
は#4會スリーブ101回転に対しスペーサコロ27・
27も1回転する為プ四内周のベアリング271・27
1はなくてもよい0節ちスペーサコロ27・27を現像
スリーブユニットの軸部191−211に圧入して軸と
一体化してもよイL、、、@<嵌入し良状練でもよい。In addition, in the case of required J/V/G development such as a single developing device, the spacer roller is 27.
Since 27 also rotates once, the bearings 271 and 27 on the inner circumference of Pu4
The spacer rollers 27 and 27, which are not required, may be press-fitted into the shaft portion 191-211 of the developing sleeve unit and integrated with the shaft.
スペーサコロ27・27の材質は感光ドラムDを損傷し
ない様柔らかい樹脂、ガえばポリエチレンなどがよい。The material of the spacer rollers 27 is preferably soft resin, such as polyethylene, so as not to damage the photosensitive drum D.
(6) 現鐵スリーブ等の駆動機m(第4.10〜1
3図)
現像スリーブ1等は必要な時以外は止めておいたHが良
い。しかし@1−2図ガ装置の如く、スリーブギヤGS
をドラムギヤGDに噛み合せて駆動させる構成では、ド
ラムDの回転中は常時スリー7’100も回転すること
になる。この為トリボが小さい一成分トナーはスリーブ
表面上シ脱落し飛散し易く機内に飛散するトナー量が増
大する。(6) Current drive machine for iron sleeves, etc. (No. 4.10 to 1)
Figure 3) It is best to leave the developing sleeve 1, etc. closed except when necessary. However, as shown in Figure 1-2, the sleeve gear GS
In the configuration in which the drum D is engaged with the drum gear GD and driven, the three 7'100 also rotates at all times while the drum D is rotating. For this reason, single-component toner with a small tribo is likely to fall off and scatter on the sleeve surface, increasing the amount of toner scattered into the machine.
東にドラムDの帯電状線を測って電位を自動的にコント
ロールする形式の複写機では、ベメ黒の電位を測定する
時にその部分にトナーが付着して消費されたシ飛散する
ので省資源の点からも好ましくない。In a copying machine that automatically controls the potential by measuring the electrically charged line of drum D on the east side, when measuring the potential of the dark black, toner adheres to that area and the consumed toner is scattered, saving resources. It is also unfavorable from this point of view.
そこで本例のij4像装置は複写機制御系からの信号に
応じてiA像装置のi像スリーブ等の回転駆動をオン・
オフ制御できる構成にしである。Therefore, the ij4 imager of this example turns on/off the rotational drive of the i-image sleeve, etc. of the iA imager in response to a signal from the copying machine control system.
It has a configuration that allows it to be turned off.
即ち、現像スリーブユニット及びコートスリーブユニッ
トのマグネットローラ@20・23は夫々手酌側の突出
軸202・2320先端部を嬶4図示のように各ユニッ
トの前倒端板21・24の醗軸211・241先端から
外方(C突出させてあり、又その甚外方突出軸部の円周
面の一部を平担面203・233に削ぎ加工しである。That is, the magnet rollers @20 and 23 of the developing sleeve unit and the coat sleeve unit have the tips of the protruding shafts 202 and 2320 on the hand cup side connected to the shafts 211 and 2320 of the front end plates 21 and 24 of each unit, respectively, as shown in Figure 4. 241 is made to protrude outward (C) from the tip, and a part of the circumferential surface of the outwardly protruding shaft portion is machined into flat surfaces 203 and 233.
そして、その各配ぎ加工軸部に、下端部に軸受り/グ2
81・291をカシメ止めした支板28・29の軸受リ
ング281・291を外嵌し、軸受り/グQ押しねじ2
82・292をねじ込んで押しねじ下端を軸の削ぎ加工
平担面203・233に押し付けることにふり夫々軸2
02−233と軸受リング281・291即ち支板28
・29を一体結合させ、そO各支板28・29の上端部
を夫々1110図のようVC111箱上面カバ一部1I
49の手前側縁部に一連に形成した下方折り曲げ片91
・91にねじ283・293でしっかりと止め付けであ
る。Then, a bearing/glue 2 is attached to the lower end of each processed shaft.
Fit the bearing rings 281 and 291 of the support plates 28 and 29 onto which 81 and 291 are caulked, and tighten the bearing/g Q push screw 2.
82 and 292, and press the lower end of the push screw against the machined flat surface 203 and 233 of the shaft, respectively.
02-233 and bearing rings 281 and 291, that is, support plate 28
・29 are integrally connected, and the upper ends of each support plate 28 and 29 are attached to the top cover part 1I of the VC111 box as shown in Figure 1110.
A series of downwardly bent pieces 91 are formed on the front edge of 49.
- Securely fasten to 91 with screws 283 and 293.
従って現像スリーブユニット及びプートスリーブユニッ
トの各マグネットローラ軸20・23即ち各マグネット
ローラ3・4は固定(非回転)に保持される。Therefore, the magnet roller shafts 20 and 23 of the developing sleeve unit and the puto sleeve unit, that is, the magnet rollers 3 and 4 are held fixed (non-rotating).
一方m潅ス!J−7’ユニット、コートスリーブユニッ
ト、スクリュー軸14の容箱奥賛板5の外方突出軸部に
は夫々電磁ばねクラッチュニツ) CI。On the other hand, m! The J-7' unit, coat sleeve unit, and screw shaft 14 are provided with electromagnetic springs on the outwardly protruding shaft portions of the container support plate 5, respectively.
コートスリーブギヤG4.スクリュー軸ギヤG5を固着
しである。Coat sleeve gear G4. The screw shaft gear G5 is fixed.
電磁ばねクララチェニットC/はクラッチ軸30とその
一端側に取付は九電磁部31と、他端側に圧入して軸3
0と一体化させ九伝達ギヤG2と、電磁部31と伝達ギ
ヤG2との間に軸30に遊嵌させた現像スリーブギヤG
lとからなり、そのクラッチ軸30の伝達ギヤG311
の先端部を現像スリーブユニットの(至)箱奥側板5の
外方突出軸191先端部に差し込んでビン32でギヤG
2は一体で□回転可能に連結させである。又電磁部31
はプランケット33・止めねじ34を介して器箱奥側板
5に廻や止め保持させである。The electromagnetic spring C/ is attached to the clutch shaft 30 and one end of the electromagnetic part 31, and the other end is press-fitted to the shaft 3.
a developing sleeve gear G loosely fitted on the shaft 30 between the electromagnetic section 31 and the transmission gear G2;
transmission gear G311 of the clutch shaft 30.
Insert the tip of the developing sleeve unit into the tip of the outwardly protruding shaft 191 on the back side plate 5 of the box, and turn the gear G with the bottle 32.
2 is integral and rotatably connected. Also, the electromagnetic part 31
It is rotated and fixed to the back side plate 5 of the container box via a plunket 33 and a set screw 34.
現像スリーブギヤG1はドラムDを回転駆動するドラム
ギヤGDに噛み合う、伝達ギヤG2dアイドラギヤG3
t−介してコートスリーブギヤG4に噛み合せである。Developing sleeve gear G1 meshes with drum gear GD that rotationally drives drum D, transmission gear G2d idler gear G3
It is meshed with coat sleeve gear G4 through T-.
コートスリーブギヤG4とスクリュー軸ギヤosrt互
に直接に噛み合せである(爾11〜13図)。The coat sleeve gear G4 and the screw shaft gear osrt are directly engaged with each other (Figs. 11 to 13).
電磁クラッチユニットCI は複写機の制御系から電磁
部31に通電が行なわれるとクラッチ板311が現像ス
リーブギヤG1方向に移動して保合、し該ギヤGlとク
ラッチ軸30とクラッチ板311を介して一体化状態と
なる(クラッチ−オン)。一方通電が断たれるとクラッ
チ板311がギヤ01側から逃げて保合が解除されギヤ
G1はクラッチ軸30に対して回転フリーの状態となる
(クラッチ−オフ)。In the electromagnetic clutch unit CI, when the electromagnetic part 31 is energized from the control system of the copying machine, the clutch plate 311 moves in the direction of the developing sleeve gear G1 and locks the developing sleeve gear G1. It becomes an integrated state (clutch-on). On the other hand, when the power supply is cut off, the clutch plate 311 escapes from the gear 01 side, the engagement is released, and the gear G1 becomes free to rotate with respect to the clutch shaft 30 (clutch-off).
而してクラッチ−オフ時はドラムギヤGDo回転に伴な
い現像スリーブギヤG1が回転駆動されても該ギヤ01
はクラッチ軸30を空転し、軸30には回転力が伝達さ
れずギヤ02以下G5壕でのギヤ列は回転しない。即ち
現像スリーブト2コートスリーブ2・スクリュー軸14
は何れも回転駆動されない。Therefore, when the clutch is off, even if the developing sleeve gear G1 is rotationally driven as the drum gear GDo rotates, the gear 01
, the clutch shaft 30 idles, no rotational force is transmitted to the shaft 30, and the gear train below gear 02 in the G5 groove does not rotate. That is, developing sleeve 2, coat sleeve 2, screw shaft 14
are not rotationally driven.
クラッチ−オン時はfA像ススリーブギヤG1クラッチ
軸3()と結合一体化するので、ドラムギヤGDのの回
転でギヤGl・クラッチ軸30・伝達ギヤG2・軸19
1が一体に回転して現像スリーブユニットのスリーブl
が回転駆動状態になる。When the clutch is on, the fA image sleeve gear G1 is coupled and integrated with the clutch shaft 3 (), so the rotation of the drum gear GD causes the gear Gl, clutch shaft 30, transmission gear G2, and shaft 19 to be connected.
1 rotates together to release the sleeve l of the developing sleeve unit.
becomes rotationally driven.
回転方向Fi第3図上時針方向である。The rotation direction Fi is the direction of the upper hour hand in FIG.
又コートスリーブギヤG4にもアイドラギヤG3を介し
て伝達ギヤG2の回転が伝達されてコートスリーブユニ
ット軸221が回転駆動されコートスリーブ2が現像ス
リーブlと同じ時計方向に回転する。The rotation of the transmission gear G2 is also transmitted to the coat sleeve gear G4 via the idler gear G3, the coat sleeve unit shaft 221 is rotationally driven, and the coat sleeve 2 rotates in the same clockwise direction as the developing sleeve 1.
又コートスリーブギヤG4にはスクリ・ニー軸ギヤG5
が噛み合っているからスクリュー軸14が反時計り向に
回転駆動されて補充用トナー供給室61内から機箱トナ
ー貯留部にトナーが逼蟲量づつ逐次補充供給される。Also, the coat sleeve gear G4 is equipped with a screen knee shaft gear G5.
Since the screw shafts 14 are engaged with each other, the screw shaft 14 is driven to rotate counterclockwise, and toner is successively replenished from the replenishment toner supply chamber 61 to the toner storage portion of the machine box in small quantities.
ここで41:例のiA像装置はいわゆるジャンピング境
1万式のものであるので感光ドラムDの周速は現像スリ
ーブlの外径よりも外側へdc(ドラムDと現像スリー
ブlの間隙)離れ九部分での周速と兄全に一敏している
。具体的な数値を舗げると現諏スリーブ1vfi径、3
2.4%、ドラムDと現像スリーブ1 vttaF44
d c=0.3%、 トラ*DO&160%ドアAギ
ヤG D to @数160、amスリーブギ−yG
lvma33である。こt)数値でrim家スリーブ°
lのみかけり周速はドラムDの周速に対して0.98の
比となっているが、 IAmスリーブ1 (1)表面か
ら0.3%離れたところでこの比は1となる。Here, 41: Since the example iA image device is of the so-called jumping boundary 10,000 type, the circumferential speed of the photosensitive drum D is dc (distance between the drum D and the developing sleeve L) to the outside of the outer diameter of the developing sleeve L. He is very sensitive to his peripheral speed in the 9th section and his older brother. If you can give specific numbers, the current Suzu sleeve 1vfi diameter, 3
2.4%, drum D and developing sleeve 1 vttaF44
d c = 0.3%, Tora*DO & 160% Door A gear G D to @Number 160, am sleeve gear yG
It is lvma33. t) Rim family sleeve ° by numerical value
The apparent circumferential speed of l has a ratio of 0.98 to the circumferential speed of drum D, but this ratio becomes 1 at a distance of 0.3% from the IAm sleeve 1 (1) surface.
コートスリーブ2の周速は現像スリーブlv六面にジャ
/ピング現像するに必要なトナー薄層(50〜100μ
機度)を形成するだけのトナーを供給できれば工く、現
像スリーブ1v周速v25−楊置でもよいが、現像スリ
ーブ1上の現像に使われてトナーのなくなつ九部分と、
現像に使われず、トナーV残っている部分とのトナーの
乗り具合の差を減少させる為3A像スリーブl上のトナ
ーをコートスリーブ2上のトナーのブラシではたく作用
、つまりマグネットブラシ現像の作用が必要であり、好
ましくは該周速ri75−程度あったガがよい、4ちる
んもつと早く飼えば同−周速l1lJfでも構わないが
%本機gI法に使う一成分トナーはトリボか弱く、コー
トスリーブ2上に1%近い長いブラシを形成し、早いス
ピードで回転させると咄敗しやすく、上記トナーの乗り
具合の差が実質的に無視しうるだけの遅いスピードで回
転させるのが好ましい、この回転数はトリポ量%3jl
fIAスリーブ周速に4よるが概ね50〜10011m
度であつ九。The circumferential speed of the coat sleeve 2 is the same as the toner thin layer (50 to 100μ) required for japing development on the six sides of the developing sleeve lv.
It is possible to supply enough toner to form the developing sleeve 1v peripheral speed v25 - 25, but the 9 parts on the developing sleeve 1 that are used for development and run out of toner,
In order to reduce the difference in the toner coverage with the remaining toner V that is not used for development, the toner on the image sleeve 3A is flicked off by the toner brush on the coat sleeve 2, that is, the action of magnetic brush development is applied. It is preferable to use a moth with a circumferential speed of about 75 mm, but if you feed it as soon as possible, you can use the same circumferential speed of 11 lJf. It is preferable to form a nearly 1% long brush on the sleeve 2 and rotate it at a slow speed so that the difference in the toner coverage can be practically ignored, since it is likely to be damaged if the brush is rotated at a high speed. The rotation speed is tripo amount %3jl
Depends on fIA sleeve circumferential speed, but approximately 50 to 10011 m
Nine degrees.
本例の現像装置に於てはi像スリーイヤG1と伝達ギヤ
G2の比を約1:0.75、具体的にはお鱈と25歯と
して上記周速を達成している。In the developing device of this example, the ratio of the i-image three-ear G1 to the transmission gear G2 is approximately 1:0.75, specifically, the ratio is set to 25 teeth to achieve the above peripheral speed.
クラッチC/ は電磁バネクラッチの例を示したす/
スのときにクラッチC/ の径が大きいと邪魔になる
場合があり、小振で、高トルク伝達可能な電磁バネクラ
ッチは好適である。Clutch C/ is an example of an electromagnetic spring clutch/
If the diameter of the clutch C/ is large, it may get in the way when the vehicle is in use, so an electromagnetic spring clutch with small vibration and capable of transmitting high torque is suitable.
クラッチユニットC/ は前記したように現像スリー
ブユニットに対し軸30・191同士をはめ合せビン3
2で連結するといった簡単な方法で組み付は得る。As mentioned above, the clutch unit C/ fits the shafts 30 and 191 to the developing sleeve unit and connects the bin 3.
Assembly can be achieved by a simple method such as connecting with 2.
以上の駆動系構成によりiA鎗装置を自由VCC励動停
止制御できる。叉、極めて簡単な駆動系にて2本のスリ
ーブ1・2のスピードを過歯な回転数にて駆動で・きる
。The above drive system configuration allows free VCC excitation/stop control of the iA spear device. Furthermore, the two sleeves 1 and 2 can be driven at a high rotational speed using an extremely simple drive system.
陶、#E4−13図中35ri)’ラムA’ffGDと
)’ラムDの側板D1とを係合させる連結ピンを示す。Ceramic, #E4-13 35ri in the figure shows a connecting pin that engages the side plate D1 of the ram A)ffGD and the ram D.
(7)トナーすくい部材(#!4・4A図)コートスリ
ーブユニット+C関し、コートスリーブ2の両端部の端
板22・24が嵌入している周面領域L2・L2は内部
にマグネットロール4の存在しない領域部であるからト
ナーを保持する)Jが−い為、内部にマグネットロール
4が存在する周面領域と比べ゛Cトリボか弱く、最終的
にfA像ススリーブ1ドラムDを現像する際のトナーの
挙動が異なってしまう。具体的には同じドラムD山のm
像電位に対し異なつ九111度の現像がなされる。(7) Toner scooping member (#! 4, 4A figure) Regarding the coat sleeve unit +C, the peripheral surface areas L2 and L2 where the end plates 22 and 24 at both ends of the coat sleeve 2 are fitted are inside the magnet roll 4. Since this area does not hold toner (J) is small, compared to the circumferential area where the magnet roll 4 is present, the C tribo is weaker, and ultimately when developing the fA image sleeve 1 drum D. The toner behaves differently. Specifically, m of the same drum D mountain
Development is performed at 9111 degrees with respect to the image potential.
又、磁力的にトナーを引きつける力が弱い為、コートス
リーブ2の回転に伴なってこの部分はトナーが飛散しや
すい、又現像スリーブ1上に転移したトナーの厚味は中
央部と比べて厚くなる傾向がありジャンピング現像を行
なう上で種々の小都合が発生する。ガえばドラムDとI
A像スリーブlの間でトナーが押しつぶされたり、濃い
トナ一層がドラム上に形成されたりする。又、内部にマ
グネットロール4のある周面領域でも、その端部即ち第
4図におけるL3の領域は磁石の性質上その部分で磁力
が強くなる。その為、内部マグネットロールトや特性の
バラつ自画から夾施されていない。In addition, since the force to magnetically attract toner is weak, toner tends to scatter in this area as the coating sleeve 2 rotates, and the thickness of the toner transferred onto the developing sleeve 1 is thicker than in the central area. This tends to lead to various inconveniences when performing jumping development. Gaba Drum D and I
The toner may be crushed between the A image sleeves 1 or a thick layer of toner may form on the drum. Furthermore, even in the circumferential area where the magnet roll 4 is located inside, the magnetic force is strong at the end thereof, that is, the area L3 in FIG. 4 due to the nature of the magnet. Therefore, it has not been subjected to internal magnet rolls or self-drawings with varying characteristics.
ブレード12として非磁性体を使った場合はゴートスリ
ーフ2周市の長手中央領域とこのL3の領域でトナーの
挙動が大巾に異なることは少ないが、鉄等の磁性体をブ
レード12に使った場合はこの部分に中央部よりはかな
り厚いトナ一層が形成される。When a non-magnetic material is used as the blade 12, the behavior of the toner is unlikely to be significantly different between the longitudinal center region of Goat Leaf 2 and this region L3, but when a magnetic material such as iron is used as the blade 12. A toner layer is formed in this part which is considerably thicker than in the central part.
そこで本同の1Afjlth!置は上記のような問題を
解消するようrこ工夫を加えである。即ち最大の複写紙
中LPより若干長くなる様現會スリーブl内のマグネッ
トロール3の兼さ寸法L5t−設定し、更tこそれよ#
)若干長くコートスリーブ2内のマグネットロール4の
景さ寸法L4を設定する。*に。So 1Afjlth! In order to solve the above-mentioned problems, several improvements have been made to the installation. That is, set the length L5t of the magnet roll 3 in the current sleeve l so that it is slightly longer than the largest copy paper medium LP, and then set the length L5t to be slightly longer than the largest copy paper medium LP.
) Set the view dimension L4 of the magnet roll 4 inside the coat sleeve 2 to be slightly longer. *To.
コートスリーブ20両端部周面領域L2・し2 K@接
触もしくriO〜0.5%椙度離関してスリーブ2内部
のマグネットロール4の端面に一致するか、若干内側に
入り込む様なすくい部材26・26を設ける。Coat sleeve 20 both ends circumferential surface area L2/2 K@Rake member that contacts or riO ~ 0.5% degree of separation and coincides with the end surface of the magnet roll 4 inside the sleeve 2 or slightly enters inside. 26.26 will be provided.
この構成によりコートスリーブ212)両端側局面には
すくい1m#426・26の存在によりトナ一層が形成
されないか極く薄い層が形成され、その間のスリーブ表
rIIi)こけ完全にトリボ等の性質の一致するトナー
だけが形成される為、現像スリーブ1には均一な薄層が
形成され、従ってジャンピング現像を行なつ九際の画像
も最大紙中LPの全軸−に亘って良好である。又すくい
部材26・26がある為、コートスリーブ2両端部の内
部にマグネットロール4の存在しない周面領域L2・L
2を伝って後方から押されたトナーがスリーブ2両端側
へはみ出して来るということもない。With this configuration, due to the presence of the 1m rake #426/26 on both end sides of the coat sleeve 212), no toner layer is formed or a very thin layer is formed, and the sleeve surface rIIi) moss completely matches the properties such as tribo. Since only the toner that is present is formed on the developing sleeve 1, a uniform thin layer is formed on the developing sleeve 1, and therefore, the image at the end of the jumping development is also good over the entire axis of the maximum paper medium LP. Also, since there are scoop members 26, 26, there are circumferential areas L2, L where the magnet roll 4 does not exist inside both ends of the coat sleeve 2.
There is no possibility that the toner pushed from the rear along the sleeve 2 will protrude to both ends of the sleeve 2.
fit!#14図例では上記のトナーすくい部材26・
26とブレード12とを別部材として構成し、組み付け
に当って両者をねじ121・121で上スデイ8の斜め
折9曲げ部8bに共線めするようにしたが、第4A図の
ようにブレード12の両端部の前縁を突縁にしてその突
縁部を上記のトナーすくい部材26・26部とするよう
に構成してもよい。Fit! In the example shown in #14, the above-mentioned toner scooping member 26.
26 and the blade 12 are constructed as separate members, and when assembling them, they are collinear with the diagonally bent portion 8b of the upper slide 8 using screws 121. The front edges of both ends of the toner scoop 12 may be formed into projecting edges, and the projecting edges may be used as the above-mentioned toner scooping members 26.
(8)現像スリーブ等に対するバイアス印加(liE3
゜4.10,12.13図)
一成分現像剤を用いて現像性能とくに階調性や画像濃度
を上げる為に現像スリーブlに直流を重畳し九交流バイ
アスを印加することが知られている。ところが、#J像
形成スピードが上がってくると、それに伴ない印加する
直流及び交流のレベルや交流の周波数を上げないとバイ
アスを印加し九効果が出て来ない、具体的にはプロセス
スピードが120%の左きは直流分+300v・交流分
士s o o V −51EM]波数200H2−1’
適正すiIl!i像カ4られたが、プロセススピードが
330%では直流分+650・又流分±100OV・交
流周波数5508Z を要することVCなる。(8) Applying bias to the developing sleeve etc. (liE3
゜4.10, 12.13) It is known to superimpose a direct current to the developing sleeve l and apply a nine-current bias to improve development performance, especially gradation and image density using a one-component developer. . However, as #J image formation speed increases, unless the level of applied DC and AC and the frequency of AC are increased accordingly, bias will not be applied and the effect will not come out. Specifically, the process speed will increase. 120% left-handed DC component + 300V/AC component so o V -51EM] Wave number 200H2-1'
Appropriate! The i-image was calculated by 4, but at a process speed of 330%, a DC component of +650V, a flow component of ±100OV, and an AC frequency of 5508Z are required (VC).
ところが、かような高電位のバイアスをかけた場倉、リ
ークを防ぐ為r(鉄置各St電気絶縁性樹脂で作成した
り、沿面距離をとっておく必要がある。However, in order to prevent leakage when such a high potential bias is applied, it is necessary to make each iron stand made of electrically insulating resin or to provide a creepage distance.
、特に現像装置6箱を構成する側板5・6.下ステイア
にバイアスが印加状線になることは避ける必要がある。, especially the side plates 5 and 6 that constitute the six developing device boxes. It is necessary to avoid applying bias to the lower steerer.
という0は[1妓置内のトナーはスバイアスのかかった
6箱壁面に触れていると上記のトリボが発生しに〈<、
トナーが変質するおそれがあるからである。0 is [1] If the toner in the storage area touches the wall of the 6 boxes covered with bias, the above tribo will occur.
This is because the toner may deteriorate in quality.
又、現像スリーブ1に高電位のバイアスが印加されてい
る為、電磁クラッチC4の耐圧は2000 V極度ない
と、クラッチコイルが絶縁不良を起こすおそれがある。Further, since a high potential bias is applied to the developing sleeve 1, the electromagnetic clutch C4 must have a withstand voltage of 2000 V or else the clutch coil may suffer from poor insulation.
又このような高耐圧の電磁クラッチC/ は通常市販さ
れておらず、極めて高価大型となる上、各棟の電気用品
の規格にも適合するものがつくりにくい等の欠点がある
。In addition, such a high-voltage electromagnetic clutch C/ is not normally commercially available, and has disadvantages such as being extremely expensive and large, and being difficult to manufacture that conforms to the electrical appliance standards of each building.
本例の現像装置は上記に鑑みてバイアス印加構成に工夫
を加えである。In view of the above, the developing device of this example has a bias application configuration modified.
即ち、現像装置器−の奥側板5・前側板6・下ステイア
についてはこれを樹脂などの絶縁材製のものにして現像
スリーブユニット、コートスリーブユニット、ブレード
12.スクリュー軸14の各部品を互に絶縁状態保持さ
せる。同、下ステイアについては金属板にしてもよいが
、その場合は電気的にフロート又はアース状綿にする。That is, the back side plate 5, front side plate 6, and lower stayer of the developing device are made of insulating material such as resin, and the developing sleeve unit, coat sleeve unit, blade 12. Each component of the screw shaft 14 is kept insulated from each other. Similarly, the lower stayer may be made of a metal plate, but in that case it may be made of electrically floated or grounded cotton.
現像スリーブユニットの奥側の端板19は軸部191も
含めて傘体をAB8・PCなど樹脂拐そO他の絶縁性態
で作成し、その軸部191に電磁クラッチユニットC/
のクラッチ軸30をビン32で連結結合させである。The end plate 19 on the back side of the developing sleeve unit, including the shaft portion 191, is made of an insulating material such as AB8 or PC resin, and the electromagnetic clutch unit C/C is attached to the shaft portion 191.
Clutch shafts 30 are connected and connected by a pin 32.
而して条列装置に於ては現像スリーブl・コートスリー
ブ2・ブレード12について)(イーアスを印加するも
ので、その印加手段とし−C器翰の上面カバ一部材9を
導電拐科製にし、そのカッ(一部材9に給電端子36(
第12・13図)を設けてノ(イアスミ圧を印加する(
該端子36への給電#4路は次項で説明する)。そうす
ると現像スリーブlには、上面カバ一部材9の折り曲げ
片91(第10図)を通じて以下導電材製である支板2
8・軸受リンク128°l・軸202・軸受212・端
板21のMM(@10図・第4図)で、又コートスリー
ブ2には同じく上面カバ一部材9の折り曲げ片91を通
じて以下導電創製である支板29・軸受リング291・
軸232・軸受242・端板24の経路で、又非磁性ブ
レード12には−E面カッ(一部材9、該カバ一部材を
ねじ止めした導電材製の上ステイ8の経路で、夫々同一
電位の)(イアスが印加状暢となる。In the row device, the developing sleeve 1, the coating sleeve 2, and the blade 12 are used to apply Eas, and as the application means, the upper cover member 9 of the C device is made of conductive material. , the power supply terminal 36 (
Figures 12 and 13) are provided to apply Iasumi pressure (
The power supply path #4 to the terminal 36 will be explained in the next section). Then, the developing sleeve l is attached to the support plate 2 made of a conductive material through the bent piece 91 (FIG. 10) of the upper cover member 9.
8. Bearing link 128°l, shaft 202, bearing 212, end plate 21 MM (@Fig. 10, Fig. 4), and the coat sleeve 2 also has the following conductive material through the bent piece 91 of the upper cover member 9. Support plate 29, bearing ring 291,
In the path of the shaft 232, bearing 242, and end plate 24, and in the path of the -E surface cup (one member 9 and the upper stay 8 made of conductive material to which the cover member is screwed) on the non-magnetic blade 12, the same The potential) (Ias) becomes the applied state.
この場合3J6スリーブ1に印加され九)(イアスは電
磁クラッチユニットCl を取付けた端板19を前述
し良ように絶縁材製にしであるからクラブチユニットC
/ 側には及ばず、ユニットct ri電気的に保−さ
れる。In this case, the voltage is applied to the 3J6 sleeve 1 (9) (because the end plate 19 to which the electromagnetic clutch unit Cl is attached is made of insulating material as described above, the clutch unit C
It does not reach the / side, and the unit CTRI is electrically maintained.
父上記のように−E上面カバ一部材9電路として活用し
たことにより、岡えば要バイアス印加各部に夫々給電コ
ードを張り渡す構成にした場合に於けるような長いコー
ドの存在や配線手間の面倒がなく、構成がシンプルで合
理的である。As mentioned above, by using the -E top cover as the 9 electrical circuit, for example, the presence of long cords and the hassle of wiring, which would be required if the power supply cords were stretched to each part that requires bias application, were avoided. The structure is simple and reasonable.
現像装置t器釉九、る側板5・6、下ステイアにはバイ
アスがかかつていないからトナーのトリボ発生障沓、ト
ナー変質等の不具合を生じない。Since there is no bias in the developing device glaze 9, side plates 5 and 6, and lower steerer, problems such as toner tribo and deterioration of toner do not occur.
同ブレード支持ステイ8に対して現像スリーブ1及びコ
ートスリーブ2の各マグネットローラ軸支板28・29
を結合させ、スティ8に対してバイアスを印加すること
によりスリーブl・2及びブレード12にバイアスを及
ぼすように構成して奄よい。The magnetic roller shaft support plates 28 and 29 of the developing sleeve 1 and coat sleeve 2 are connected to the same blade support stay 8.
It may be configured such that a bias is applied to the sleeve l.2 and the blade 12 by coupling them together and applying a bias to the stay 8.
(9) 現像装置のl!尊械杢機に対する装着(第1
115図)
本H装置は
l 複写機4:機内への装脱過相で装脱現像装置による
感光ドラムDrkJIZ)I[遇・押し付は損傷を厳に
防止する。(9) Developing device l! Attachment to Sonki Mokuki (1st
(Fig. 115) This H device is l Copying machine 4: The photosensitive drum DrkJIZ) by the loading/unloading developing device during the loading/unloading phase into the machine.
−ジャンピング現像方式の現像装置は、現像スリーブl
とドラムDのすきま間隔dcをドラムDCり偏7L/回
転や凹凸にかかわらず常に30θμ±30μ4M度の閲
噛に規定保持させねばならず、従来の磁気ブラシ現像方
式の現像装置のように装置をドラムりに対して一足位置
に固定しヤおくわけにはゆかない、そこで、ドラムりに
偏心回転や凹凸があってもそれに追従させてM*装置を
自然に揺動運動させることによりドラムDと現像スリー
ブlとV閣に深究せるべき所定のすきま間隔dcij常
に保持させる、
■ 複写橋本@側と現像装置側との電気回路の現像鋏置
妓脱に際しての!iI続・切り離しは現像装置の鉄腕に
伴なわせて自動的に行なわせ、これにより構像装置装脱
操作毎の電気コネクタの抜き差し操作の面倒・煩わしさ
、抜龜差し忘れを解消する、
等の工夫を加えである。-The developing device of the jumping developing method uses the developing sleeve l.
The gap dc between the drum D and the drum D must always be kept at a specified clearance of 30θμ±30μ4M degrees regardless of the drum DC deviation of 7L/rotation or unevenness. It is not possible to fix the drum in one position relative to the drum, so even if there is eccentric rotation or unevenness in the drum, the M* device can naturally oscillate to follow the eccentric rotation or irregularities. Always maintain a predetermined gap distance dcij between the developing sleeve l and V cabinet. ■ When removing the developing scissors from the electric circuit between the copying Hashimoto @ side and the developing device side! iI connection/disconnection is performed automatically as the developing device is operated, thereby eliminating the hassle and hassle of plugging/unplugging the electrical connector each time the image forming device is installed/unloaded, and the forgetting to plug/unplug the connector. This is with the addition of the following ideas.
まず現像装置の複写機本機に対する装着構成について説
明する。第13図に於て、37・38Fi複写機本機の
シャシ−の奥側板と前側板で、ドラムDtiこの両側板
37・38間に回転自由に軸受保持させである。D2は
ドラム軸を示す。First, the mounting structure of the developing device on the copying machine will be explained. In FIG. 13, the drum Dti is rotatably supported by bearings between the side plates 37 and 38 of the chassis of the 37/38 Fi copying machine. D2 indicates the drum axis.
上記のシャシ−前側[38vこついてはドラムりに対す
る現像装置配設位置対応部に現像装置挿入開口381を
形成しである。又その開口部位のシャシ−奥側板37と
前側板38との閾には現像装置受台39(嬉14・15
図)を配設しであるその受台39のドラムD@の前辺部
には辺長手に沿って溝レール391を形成しである。一
方塊像装置について1jIS箱の奥側板5と前側板6の
下辺のドラムD@寄りに夫々上記受台39の婢レール3
91に嵌入する下向き突起53・63を形成しである。On the front side of the chassis described above, a developing device insertion opening 381 is formed at a portion corresponding to the developing device installation position relative to the drum mount. Also, a developing device pedestal 39 (Rei 14/15
A groove rail 391 is formed along the length of the side on the front side of the drum D@ of the pedestal 39 on which the drum D@ is disposed. On the other hand, regarding the mass imager 1j, the rear rail 3 of the pedestal 39 is located near the drum D@ on the lower side of the back side plate 5 and front side plate 6 of the IS box.
91 are formed with downwardly directed protrusions 53 and 63 that fit into them.
而して現像装置の複写機4機への装着は上記シャシ−前
側板38の開口381から複写機本機内へ現像装置の夷
飼を先にして差し入れ、@14図のようrc現嫁妓直器
容箱奥側板5の下向き突起Sを受台39の鯵レール39
1 VCC大人せると共rc央@板5の下向自突起53
側と反対側の下辺部54を受台39上に受けさせる。こ
れにより現像装置はドラムりに対して下向き突起53を
中心に倣トリfc傾斜して洟は装置前側がドラムDから
大きく離間した姿勢検聴となる。そしてこの姿勢状−の
まま#を像装置全体を受台39及び溝レール391上t
m動さ誓て複写@本機内方へ押し込み挿入する。途中碗
11I!装置の前側板6@の−F向き突起63が凹溝レ
ール部391に対応位置したらその突起63をレール3
91に嵌入させて現gR装置1しζ押し込み、最終的に
現像装置6軸の奥側板5の外面yc設は九後述する電気
回路コネクタ40(嬉11〜13図)が複写@本機のシ
ャシ−奥側板37@に設は良問対応コネクタ41に嵌入
し、ストッパ板42で受止められる壇で十分に挿入操作
する。Therefore, to install the developing device into the four copying machines, insert the developing device into the copying machine through the opening 381 of the front side plate 38 of the chassis, and insert the developing device into the main body of the copying machine first, as shown in Figure @14. Connect the downward protrusion S of the back side plate 5 of the container box to the horse mackerel rail 39 of the pedestal 39.
1 VCC adult and rc center @ downward self-protrusion 53 of plate 5
The lower side portion 54 on the opposite side is received on the pedestal 39. As a result, the developing device is inclined with respect to the drum centering around the downward protrusion 53, so that the front side of the developing device is placed at a large distance from the drum D. Then, while maintaining this posture, move the entire imaging device onto the pedestal 39 and the groove rail 391.
Make a copy by pushing it into the machine. Bowl 11I on the way! When the -F facing protrusion 63 of the front side plate 6@ of the device is positioned corresponding to the grooved rail portion 391, the protrusion 63 is connected to the rail 3.
91 and push it into the developing gR device 1. Finally, the outer surface yc of the rear side plate 5 of the 6th axis of the developing device is installed. - Insert the connector 41 into the connector 41 on the back side plate 37@, and fully insert it with the platform that is received by the stopper plate 42.
この現*装置の押し込み挿入過程に於ては現像装置は上
述したように装置前側が感光ドラムD゛がら大傘く離間
し九姿勢状態にあるのでドラ40面をl[スリーブギヤ
Glやスペーサコロ27・27で擦ってドラム面を傷付
けることが防止される。During the process of pushing and inserting the developing device, the front side of the developing device is in a nine-position state with a large distance from the photosensitive drum D as described above.・Prevents damage to the drum surface caused by rubbing with 27.
又31*装置が十分に押し込まれてコネクp4゜が同4
1に嵌入しストッパ42で受止められる迄はa像装置の
押し込み挿入過程で仮にIA像装置を突起53・63を
中心に起こし動作しても現像装置の上面カバ一部材9の
前縁が第13図制氷・第14図のようにシャシ−前側板
38の現像装置挿入開口縁382(一部張り出し縁)に
轟って干渉して起き回動が阻止されて同じ<g4mスリ
ーブギヤG1やスペーサコEff27がドラムD′rI
iに接触しない関係構成にしてドラ40面の保護を厳に
図るようにしである
現像装置が十分に押し込み挿入されてコネクタ40が同
41に嵌入して且つストッパ42で受止められた時点で
は現像装置6箱の前側板6が複写機本機のシャシ−前側
wiasの開口381を通シ越してシャシ−前側板38
の内側に位置し、この状態に於てti3Js装置の上面
カバ一部材前縁とシャシ−前側板38の開口縁382と
の干渉関係がなくなり、現像装置全体の溝レール係合突
起53O63を中心とする起こし操作が可能となる。Also, 31* the device is pushed in enough so that the connection p4° is the same as 4.
1 and is received by the stopper 42, even if the IA image device is raised centering on the protrusions 53 and 63 during the insertion process of the a image device, the front edge of the upper cover member 9 of the developing device Fig. 13 Ice control - As shown in Fig. 14, the noise interferes with the developing device insertion opening edge 382 (partially protruding edge) of the chassis front plate 38 and prevents rotation, causing the same <g4m sleeve gear G1 and Spacerco Eff27 is drum D'rI
When the developing device is fully pushed in and the connector 40 is fitted into the connector 41 and is received by the stopper 42, the developing device is designed to protect the surface of the driver 40 strictly so that it does not come into contact with the connector 41. The front plate 6 of the device 6 box passes through the opening 381 of the chassis-front side wias of the copying machine to the chassis-front plate 38.
In this state, there is no interference relationship between the front edge of the upper cover part of the ti3Js device and the opening edge 382 of the chassis front side plate 38, and the groove rail engaging protrusion 53O63 of the entire developing device is located at the center. It is possible to perform a raising operation.
#114−15m中、43FiそvjJl像装置起CL
。#114-15m, 43Fi SovjJl imager start CL
.
操作機構で、431ij図に省略し次操作レバーの操作
ycよシ正転参逆転する軸、433ijその軸431
vcブラケット432を介して固着支持させたコ字形金
具、434はそVコ字形金具の両岬片に摺動自由に軸支
させた進退杆で、蚊進退杆は線杆の途中に°形成した鍔
部435とコ字形金^433の稜部@胛片間Vこ縮設し
たコイルばね436により常時前方へ突出付勢させであ
る。437Fi進遇杆434の先端部に形成した押圧子
である。なお上記のブラケット432〜抑圧子4371
での部材@構は軸431の奥側と手前側の2個所に設け
である。In the operation mechanism, 431ij is omitted in the diagram, and the shaft that rotates forward and backward according to the operation yc of the next operating lever, 433ij, that shaft 431
The U-shaped metal fitting is fixedly supported via a VC bracket 432, and 434 is an advancing and retracting rod that is slidably supported on both cape pieces of the V-shaped metal fitting, and the mosquito advancing and retracting rod is formed in the middle of the line rod. A coil spring 436 compressed between the flange 435 and the ridge of the U-shaped metal 433 is used to constantly project forward. This is a presser formed at the tip of the 437Fi promotion rod 434. Note that the above bracket 432 to suppressor 4371
The members are provided at two locations on the back side and the front side of the shaft 431.
一方現像装置の奥側板5と前側板6の各内情後部rこは
上記の各機構の抑圧子437に対応する突起部55(前
側板6Ilは不図示)t−形成しである而して5AgI
装置の複写機番機内への挿入操作時は挿入現像装置と上
記の装置起こし機構43が干渉しないようにレバー操作
で軸431t−反時計力向へ回動操作して第14図示の
ように機構43全体f:現俸装置挿入径路外へ逃し状1
i1vct、てfj4像装置を挿入する。On the other hand, the inner rear plate 5 and the front plate 6 of the developing device are formed with protrusions 55 (the front plate 6Il is not shown) corresponding to the suppressors 437 of the above-mentioned mechanisms.
When inserting the device into the copying machine, use a lever to rotate the shaft 431t in the counterclockwise direction so that the insertion developing device and the device raising mechanism 43 do not interfere with each other as shown in Figure 14. 43 Overall f: Relief shape 1 to the outside of the current device insertion path
i1vct, insert fj4 imager.
現像装置が十分に挿入されてコネクタ40が同41 V
CC大人て且つストッパ42で受止められた後にレバー
操作で軸431Tk時針方向へ回動操作する。そうする
とその回動過程で装置起こし機構43の押圧子437が
現gII装置側の対応突起部55に#!!i九る。その
後も軸431f:現像装置の重量抵抗及びばね436の
力に抗して回動させると進退杆434がばね436t−
圧縮しながら後退して杆先端g ri)押圧子437が
突起部55の斜め下方へもぐり込む、その結果、ばね4
360反力でfA像装置に突起部55を介して押し上げ
力が作用して現像装置全体が受台39の擲レール391
に係合している下向自突起53・63を中心に時針方向
に回動されて起こし状態となり、スペーサコロ27・2
7が第13図・[15図示のようにドラムDO両端部面
に接触すると共に3jl像スリーブギヤG1がドラムギ
ヤGDに噛み合い状態となる。この現像装置の起こし状
態は軸431を中心に回動させた機構43.或は軸43
1の操作レバーが戻り死点を越えることrこより、或は
レバーをロック装置でロックすることにより保持される
。The developing device is fully inserted and the connector 40 is at 41 V.
After the CC has been adjusted and received by the stopper 42, the shaft 431Tk is rotated in the direction of the hour hand by operating the lever. Then, during the rotation process, the pusher 437 of the device raising mechanism 43 hits the corresponding protrusion 55 on the current gII device side. ! I nine. After that, when the shaft 431f is rotated against the weight resistance of the developing device and the force of the spring 436, the advancing/retracting rod 434 is moved by the spring 436t-
The lever tip 437 retreats while being compressed, and the pusher 437 sinks diagonally downward into the protrusion 55. As a result, the spring 4
360 reaction force acts on the fA image device through the protrusion 55 to push the entire developing device up against the lifting rail 391 of the pedestal 39.
The spacer rollers 27, 2 are rotated in the direction of the hour hand around the downward self-protrusions 53, 63 engaged with the
7 comes into contact with both end surfaces of the drum DO as shown in FIGS. 13 and 15, and the 3jl image sleeve gear G1 becomes engaged with the drum gear GD. The raised state of this developing device is determined by a mechanism 43 rotated around a shaft 431. Or shaft 43
The first operating lever is held by returning past the dead center or by locking the lever with a locking device.
つまり現glI装筺はばね436v反力で突起53−6
3を中心Vこ起こされてスペーサコロ27・27のドラ
ムDに対する接触が常時保持されてIJA像スリスリー
ブ1ラムDとの所定すきま間隔dcが保持される。この
場合ドラムDKii心回転があり九9、ドラムDVこ凹
凸があってもばね436のクッション作用によりそれに
対応して現像装置の全体がコロ27・27のドラム9面
に対する接触を保持し九まま下向き突起53@63を中
心に追従邊動して現像スリーブ1とドラムりの所定すき
ま間隔dcq)確保がなされる。In other words, the current glI housing has a protrusion 53-6 due to the reaction force of the spring 436v.
The spacer rollers 27, 27 are always kept in contact with the drum D, and a predetermined gap dc between the IJA image sleeve 1 and the ram D is maintained. In this case, even if the drum DK2 rotates around its center, and the drum DV has unevenness, the cushioning action of the spring 436 causes the entire developing device to maintain the contact of the rollers 27, 27 with the surface of the drum 9, and keep the rollers 27 facing downward. A predetermined clearance dcq) between the developing sleeve 1 and the drum is secured by following the protrusion 53@63.
ばね435による現S装置の起こし回動力はド?ADK
コロ27・27の@九る力F(嬉15図)に換算してl
kL;J、iI!度でよい、この力Fが小さいとドラム
Dの回転ムラや、凹凸に対する追従性が感くなり、大き
いとコロ27・27がドラムDに強く押し肖たり、ドラ
ムりに損傷を与える。What is the rotational force of the current S device due to the spring 435? ADK
Converted to Koro 27/27 @Kururiki F (Rei 15 figure) l
kL;J,iI! If this force F is small, the rotation of the drum D will be uneven and the ability to follow irregularities will become noticeable, and if it is large, the rollers 27 will press against the drum D strongly, causing damage to the drum.
又はね435はかなり圧縮して押し縮めたものを金具4
33LSとじこめ、大きく九わんでも、その押圧力の変
化が少ない構成としている。即ち、自由長は金具433
v両胛片関よりも遥かに糞いもg)f:押し縮めてセッ
トしておる。これにより大匙くたわんでも押圧力変化が
少なくなり、又小さなバネ足数のば!1え、かつコンノ
シクトな設計のものにすることができる。Alternatively, the screw 435 can be compressed considerably and attached to the metal fitting 4.
33LS is closed, and the structure is such that the pressing force does not change much even if it is turned to a large angle. In other words, the free length is the metal fitting 433
v It's much worse than Ryotenkataseki g) f: It's compressed and set. This reduces the change in pressing force even when the spoon is bent, and the number of spring legs is small! 1, and can be designed in a consistent manner.
次に電気回路コネクタ40・41について説明する(主
として第12図)。現像装置側のコネクタ4Ori現偉
装置器箱の奥憫板5の外面側に腕部材401・401を
介して不動に取付は保持させてあり、餓コネクj40と
、上カバー9のノ(イアス印加用給電端子36.電磁ク
ラッチCI%丁ステイアに取付は保持させ九トナー残量
検知勢のセンサユニットS(第12図・183図)とを
結線402させである。Next, the electric circuit connectors 40 and 41 will be explained (mainly shown in FIG. 12). The connector 4 on the developing device side is fixedly attached to the outer surface of the inner plate 5 of the developing device box via arm members 401, 401. The power supply terminal 36 is attached to the electromagnetic clutch CI% and held and connected to the sensor unit S (FIGS. 12 and 183) for detecting the remaining amount of toner.
又複写1m$楡側のコネクタ41は本機の制御回路部と
結線411L、てあり、本機シャシ−の奥側板37の現
像装置m側と反対面側に軸412を中Ibに上下方向に
回動自由の揺動板413に取付は保持させである。そし
てそのコネクタ正面はシャシ−奥側板37にめけた窓孔
371から奥側板37の内側に臨ませである。揺動板4
13の揺動中lυ軸412ri複写様41:観に挿入し
九現像装置の揺動中心軸111%即ち隣レール391に
嵌大しているド向き突起5°3・63を結ぶ軸iIの延
長−と軸−を一致させて配設しである。In addition, the connector 41 on the copying 1m frame side has a connection 411L with the control circuit section of the machine, and a shaft 412 is connected to the rear side plate 37 of the machine chassis on the side opposite to the developing device m side in the vertical direction in the center Ib. It is attached to the freely rotatable rocking plate 413 and held. The front surface of the connector faces the inside of the rear side plate 37 through a window hole 371 cut into the rear side plate 37 of the chassis. Rocking plate 4
During the oscillation of 13, the lυ axis 412ri is inserted into the copy mode 41: 9. The center axis of oscillation of the developing device 111%, that is, the extension of the axis iI connecting the do-oriented protrusion 5° 3 and 63 fitted into the adjacent rail 391. They are arranged with their axes aligned.
、揺動板4131111111の軸412と反対側の端
部には下部に突片414を設け、それをシャ7−奥側板
37に固定したストッパ板42の折曲げ突片421に受
は止めさせてコネクp41付きの揺動板413の重量を
受けさせると共に、揺動板413とストッパ板42間に
軽い引きばね415を張設して常時揺動板413を軸4
12を中心に下方へ回動付勢させてストッパ板42の上
記突片421上に押し付は位置決めさせである。, a protrusion 414 is provided at the bottom of the end of the rocking plate 4131111111 opposite to the shaft 412, and the receiver is stopped by a bent protrusion 421 of the stopper plate 42 fixed to the rear side plate 37 of the shaft 7. The weight of the rocking plate 413 with the connection P41 is supported, and a light tension spring 415 is stretched between the rocking plate 413 and the stopper plate 42 so that the rocking plate 413 is always held on the shaft 4.
The stopper plate 42 is pressed onto the protruding piece 421 of the stopper plate 42 for positioning by rotating and urging it downward around the stopper plate 42.
而して上記位置決め状態の揺動板413のコネクタ41
に対して前述したように鎮写機4:idk内に装着の九
め押し込み挿入されてくる。i像装置側のコネクタ40
が正対する関係に構成してあり、現像装置の押し込み挿
入の最終過程に於て現像装置側コネクタ40の突出案内
ビン403・403が本機側コネクタ41のピア受孔4
16・416に嵌入し、引続く現像装置の挿入移動でス
ムースにコネクタ40がコネクj41に対して嵌入して
結合状線になると同時に、コネクタ4oがストッパ42
に受止められてそれ以上の現像装置の押し込み挿入が阻
止され、現像装置が最終挿入位置に達したことが認識さ
れる。そこで前述第14・15図で説明したように軸4
31を回動操作して機構43によりIAgII装置を下
向き突起53・63を中心に時計方向へ起こし回動させ
てスペーサコロ27・27を感光ドラムDに当接させる
と共に現像スリーブギ−yGtをドラムギヤGDに噛み
合せ状態にさせ、その状態を保持させることにより現像
装置の本積に対する装着を完了する。Therefore, the connector 41 of the swing plate 413 in the above-mentioned positioning state
As mentioned above, the still image camera 4: is inserted into the idk by pushing it into place. Connector 40 on the i-image device side
In the final process of pushing and inserting the developing device, the protruding guide pins 403 of the developing device side connector 40 are configured to face each other directly, and the protruding guide pins 403 of the developing device side connector 40 are inserted into the pier receiving hole 4 of the main unit side connector 41.
16 and 416, and with the subsequent insertion movement of the developing device, the connector 40 smoothly fits into the connector j41 to form a bonded wire, and at the same time, the connector 4o moves to the stopper 42.
This prevents further insertion of the developing device, and it is recognized that the developing device has reached the final insertion position. Therefore, as explained in Figures 14 and 15 above,
31 and the mechanism 43 raises and rotates the IAgII device clockwise around the downward protrusions 53 and 63 to bring the spacer rollers 27 and 27 into contact with the photosensitive drum D, and at the same time, the developing sleeve gear yGt is connected to the drum gear GD. By bringing them into engagement and maintaining that state, the mounting of the developing device on the main stack is completed.
この場合現像装置の揺動軸IiI九る突起53・63を
結ぶ軸線と、コネク*41を支持する揺wJ仮413の
揺動中心軸412の軸線とは一致嘔せであるから3J像
装置の上記起こし回動に伴ない本積@のコネクタ41も
現1装置側のコネクタ40と結合を保持したまま揺動板
413とともに経い引きばね415に抗して軸412を
中心に#@埋なく回動してコネクj40Φ41の相互結
合に(”1等支障を生じない、又前述したように現像装
置がドラムDv偏心回転や凹凸に基因して突起53−6
3を中心に追従揺動してもそれに伴ない揺動板413も
追従揺動して同じくコネクj40・41の相互結合に何
等支障を生じない。In this case, since the axis connecting the pivot shaft IiI round protrusions 53 and 63 of the developing device and the axis of the pivot center shaft 412 of the pivot wJ temporary 413 that supports the connector *41 are coincident, the 3J imager Along with the above-mentioned raising and rotation, the connector 41 of the main stack @ also moves along with the swing plate 413 while maintaining connection with the connector 40 of the current 1 device side, and resists the tension spring 415 and moves around the shaft 412 without being buried. The rotation does not cause any problem in the mutual connection of the connectors J40Φ41 ("1", etc.), and as mentioned above, the developing device does not cause protrusions 53-6 due to the eccentric rotation of the drum Dv or unevenness.
3, the rocking plate 413 also follows the rocking movement, and similarly, there is no problem in connecting the connectors j40 and 41 to each other.
なお、軸412と揺動板413間に#′i若干のガ声(
ガえば1%Ie4度)があってもよい、現像装置側のコ
ネクタ40を現像装置の揺動中心を中心に揺動自由に構
成してもよい。Note that there is some noise (#'i) between the shaft 412 and the swing plate 413.
The connector 40 on the developing device side may be configured to swing freely around the center of swing of the developing device.
一旦装着し九現像装置の抜き出しは第15図に於て軸4
31をVパー操作で反時計方向に回動させることにより
玩ぶ装置−こし機構43を第14図のように外方へ逃し
回動させることによりIA像装置の押し上げ力を解除す
る。そうすると、現像attFi全体に自重により下向
き突起を中心に反時針方向に回動して後部下辺54・6
4が受台39上に接し、現像装置全体は第13図のよう
に下向き突起53・63を中心に後トリの傾斜姿勢とな
り、装置前側のスペーサコロ27・27 カド5 AD
から離れ、又jJIスリーブギヤGlがドラムギヤGD
から離れる。そこでその後下り傾斜姿勢の現像装置をそ
の姿勢の現像装置をその姿勢状態のtま手前側に引く。Once installed, remove the developing device from shaft 4 in Figure 15.
31 in the counterclockwise direction by the V-par operation, the strainer mechanism 43 is released and rotated outward as shown in FIG. 14, thereby releasing the pushing force of the IA image device. Then, the entire developing attFi rotates in the counterclockwise direction around the downward protrusion due to its own weight, and the rear lower sides 54 and 6
4 is in contact with the top of the pedestal 39, and the entire developing device assumes a rear tilted position centering on the downward protrusions 53 and 63 as shown in FIG. 13, and spacer rollers 27 and 27 on the front side of the device
Separate from the jJI sleeve gear GL and drum gear GD.
move away from Thereafter, the developing device in the downwardly inclined position is pulled toward the front side by t in that position.
この引きによりコネクタ4゜の同41に対する嵌入保合
が自然に外れる。そして更に現像装置を手前に引くこと
によりシャシ−前側板38の開口381から機外へ取り
出すものである。Due to this pulling, the connector 4° is automatically released from its engagement with the connector 41. By further pulling the developing device toward you, it is taken out of the machine through the opening 381 of the chassis front plate 38.
この現像装置の抜き出し過程に於てもドラムD面から現
像装置前部が大きく逃げ離れた状態にあるからスペーサ
コロ27・27やギヤG1によるドラムD面の擦過損傷
は生じない。又この抜き出し過程に於て仮に現像装置を
下向き突起53 @63を中心に起こし動作し”Cも前
述の現像装置挿入過程の場合と同様にfJLgl装置の
上カバー90前縁とシャシ−前側板開口縁382とが干
渉して現像装置の回動が阻正され、スペーサコロ27・
27やギヤGlのドラム9面への接触が貼止される。Even in the process of extracting the developing device, since the front part of the developing device is largely separated from the surface of the drum D, the surface of the drum D is not scratched and damaged by the spacer rollers 27, 27 and the gear G1. In addition, in this extraction process, if the developing device is raised and operated centering on the downward protrusion 53 @ 63, "C" is moved between the front edge of the upper cover 90 of the fJLgl device and the front side plate opening of the chassis, as in the case of the above-mentioned developing device insertion process. The rotation of the developing device is blocked due to interference with the edge 382, and the spacer rollers 27 and
27 and the contact of the gear Gl to the drum 9 surface is pasted.
又機構43による現像装置の抑圧を解除しないで3J津
装置を引き操作しても機構43の押圧力。Furthermore, even if the 3J unit is pulled and operated without releasing the suppression of the developing device by the mechanism 43, the pressing force of the mechanism 43 remains.
及び現像装置の前側板 6とシャシ−前側板38の開口
縁382v内側とυ干#(第13図)VCより現像装置
は抜けない。The developing device cannot be removed from the front side plate 6 of the developing device, the inner side of the opening edge 382v of the chassis front side plate 38, and VC (FIG. 13).
<10))J橡スリーブユニットとコートスリーブ二二
ツ、トの他cDm成丙(鴎16図)
縞4図例Q)現像装置に於てメンテナンス吟のために#
4津スリーブユニットを取り外すべくその両端側の軸1
91・211から電磁クラッチC/。<10)) J 橡 sleeve unit, 22 coat sleeves, etc. cDm Chenghei (Koh 16 diagram) 4 stripes diagram example Q) For maintenance inspection in the developing device #
To remove the 4-piece sleeve unit, remove the shaft 1 on both ends.
Electromagnetic clutch C/ from 91/211.
スペーサコロ27−27を外し1次いで一方又は両方の
軸受部材111を器筒@板5・6から取り外すと、その
−関にコートスリーブ2内の磁石4に現像スリーブl内
の磁石2が引かれる為、両スリーブ1・2v間1′ζあ
ったトナーはその間にはさみ込まれ凝集する。その為ト
ナーの大きながたまりができスリーブ上に融着したり、
そのかたまりがブレード12とコートスリーブ2の間に
はさまるといったトラブルにつながる。When the spacer rollers 27-27 are removed and then one or both bearing members 111 are removed from the container @plates 5 and 6, the magnet 2 in the developing sleeve l is attracted by the magnet 4 in the coat sleeve 2. , the toner present at a distance of 1'ζ between the sleeves 1 and 2v is caught between them and aggregates. As a result, a large amount of toner may accumulate and fuse onto the sleeve.
This leads to problems such as the lump getting caught between the blade 12 and the coat sleeve 2.
この点を改善した構造例を第16図に示す。即ち第16
図?!lriコートスリーブ2の端部2a・2a即ちト
ナ一層を形成しない領域L2・L2v径R2を太くシ、
その部分にグレード12の両端部側を接触させて設ける
。ここでコートスリーブ端部の太い径R2とトナーブラ
シを形成するスリーブ部分領域L4の!Klとの段差(
几2−81)々は所望するブラシの穂の長さtl と略
等しくしておけば、ブレード12の位置をメンテナンス
のとき外して、又は取付ける際いちいち関整し直す必要
がない。(R2−R1)’21は一般には0.1〜0、
5 rm 84度に設定される。又、コートスリーブ2
の内部のマグネット4のある領域でだけブラシの穂を作
る為、−トナーのトリボ等の性質が一致しているトナー
友けがトナ一層を形づくる為現像スリーブ1 pcこの
トナー示転移した際均−な薄層が形成される。又トナー
が段差の外側端面に寄せられて軸受の寿命を短かくシ九
り飛散につながったりということもない。そして現鐵ス
リーブユニットの軸受部$4111−111を外しても
上記コートスリーブ20大径部2a・2aの存在及び下
記り/グ1aalaの存在により両スリーブ1・2は段
差より近づくことがない為トナーの離着やかたまりがで
きる心配もない等多くV*所をもつものである。同様の
考えガにより現像スリーブ1v膚部にガえば°ポリエチ
レン樹脂製等の絶縁樹脂リングla@laを圧入し、感
光ドラムりとfA僚スリーブlとの間に所定のすきま間
隔dCt−確保するに/c/スペーサとして作用させる
こともできる。即ち現像スリーブlの両端部に段差dc
となる様rζスペーサリリングa*taを圧入する。具
体的数値を挙げるとコートスリーブ2の段差d a w
l)、 8%、#L像スリーブ10段差d c =r
Q、 3%mmである。当然のことながらfA像スリ
ーブlに上記のスペーサリング1aalaを設ける構成
では繭4図例のものに於けるスペーサコロ27・27r
i両側共不要である。更にスペーサリング1m51mと
ドラムDの周速は完全に一致しており%現像スリーブl
@とドラムDllは共にギアGl@GDのかみ合いで結
合しているから両者の間でスリシブを生じてリング1a
・1aやドラムが摩耗するといった危険性はない。An example of a structure that improves this point is shown in FIG. 16. That is, the 16th
figure? ! The ends 2a and 2a of the lri coat sleeve 2, that is, the areas L2 and L2v where no toner layer is formed, are made thicker, and the diameter R2 is made thicker.
Both ends of grade 12 are placed in contact with that part. Here, the thick diameter R2 of the end of the coat sleeve and the sleeve partial region L4 forming the toner brush! Level difference with Kl (
If the blades 2-81) are made approximately equal to the desired brush ear length tl, there is no need to remove the blade 12 for maintenance or readjust it each time it is installed. (R2-R1)'21 is generally 0.1-0,
5 rm set at 84 degrees. Also, coat sleeve 2
In order to form brush ears only in a certain area of the magnet 4 inside the developing sleeve 1 pc, the toner particles having the same properties such as tribo to form a single layer of toner. A thin layer is formed. Furthermore, the toner does not collect on the outer end surface of the step, shortening the life of the bearing and causing the toner to scatter. Even if the bearing part $4111-111 of the current iron sleeve unit is removed, both sleeves 1 and 2 will not come closer than the difference in level due to the presence of the large diameter parts 2a and 2a of the coat sleeve 20 and the presence of the following ring 1aala. It has many V* points, such as there is no need to worry about toner adhesion or clumps. Using a similar idea, if the skin of the developing sleeve 1v gets loose, an insulating resin ring la@la made of polyethylene resin or the like is press-fitted to secure a predetermined gap dCt between the photosensitive drum and the sleeve l. /c/ can also act as a spacer. That is, there is a step dc at both ends of the developing sleeve l.
Press fit the rζ spacer ring a*ta so that To give specific figures, the height difference in coat sleeve 2 is d a w
l), 8%, #L image sleeve 10 steps d c = r
Q, 3%mm. Naturally, in the configuration in which the above-mentioned spacer ring 1aala is provided on the fA image sleeve l, the spacer rollers 27 and 27r in the example of the cocoon 4 are
iBoth sides are unnecessary. Furthermore, the circumferential speeds of the spacer ring 1m51m and the drum D are completely the same, so the % developing sleeve l
Since @ and drum Dll are both connected by meshing with gear Gl@GD, a slit occurs between them and ring 1a
・There is no risk of 1a or drum being worn out.
このスペーサリングla・1aを絶縁樹脂製とする城山
は、ドラムDを傷つけない様にするといった塩山の外に
、現像スリーブlには現像性能、とくに階−往や1虚濃
度を上げる為に前述((8)項)し九ように高電位のバ
イアスを印加することがあり、ドラムDの基体であるア
ルきニラ五等の導体と、fA像スリーブ10間には傅い
厚みの感光体(一般には50μ8!度)を介し、上記ス
ペーサリングla・1aが接触することになりピンホー
ル等のトラブルを発生させやすいのでそれを防ぐといっ
た目的もある。Shiroyama makes the spacer rings la and 1a made of insulating resin, in addition to preventing the drum D from being damaged, the developing sleeve l is also made of an insulating resin to improve the developing performance, especially the gradation and imaginary density mentioned above. (Section (8)) A high potential bias may be applied, and a photoconductor (with a different thickness) is placed between the conductor such as aluminum chive 5, which is the base of the drum D, and the fA image sleeve 10. Generally speaking, the spacer rings la and 1a come into contact with each other through an angle of 50μ8! degree), which tends to cause troubles such as pinholes, so the purpose is to prevent such troubles.
又このスペーサリングla@1mの存在により一スリー
ブ1を現像装置器筒から外した際の該スリーブ1のスリ
ーブ2方向への磁気力による吸引衝突が前記コートスリ
ーブ2側の突部21・2aと同様の作用で防止される。Also, due to the presence of this spacer ring la@1m, when one sleeve 1 is removed from the developing device cylinder, the attraction and collision of the sleeve 1 in the direction of the sleeve 2 due to the magnetic force is caused by the protrusions 21 and 2a on the coat sleeve 2 side. It is prevented by a similar effect.
以上要するに、一般には現111装置の組立、メ/デナ
/ス後の再セット時コートスリーブ表向に。In summary, in general, when resetting the current 111 device after assembly or maintenance, the coat sleeve should be placed on the front side.
所定のトナーの厚さtlでトナ一層を形成する為ブレー
ドをコートスリーブ2工り約11離して装置する必要が
あるが、上記のように構成すれば単純にブレード12f
t@〈コートスリーブ2端部の大径s21・28に押し
付けてセットすればよく、−整取付けが極めて容易であ
る。なお轟然のことながらプレード12に磁性体を使っ
た場合にはトナ7層の厚味はブレード12とブートスリ
ーフ20間隔より薄くなる為、(R2−R1)/2はト
ナ一層の厚さtl ニジ大きくしておく必要があること
はもちろんである。かように構成し九為、メンテナンス
等で31[スリーブを外してもトナ一層を押しつぶして
しまうといつ九こともない。In order to form a single layer of toner with a predetermined toner thickness tl, it is necessary to install the blades at a distance of about 11 mm from each other with two coat sleeves.
t@<It is only necessary to set it by pressing it against the large diameter s21 and 28 at the end of the coat sleeve 2, and the installation is extremely easy. It should be noted that when a magnetic material is used for the blade 12, the thickness of the toner 7 layer will be thinner than the distance between the blade 12 and the bootsleaf 20, so (R2-R1)/2 is the thickness tl of one layer of the toner. Of course, it is necessary to make it significantly larger. With this structure, maintenance, etc. would be impossible if the sleeve was removed and the sleeve was crushed.
(11)現像スリーブ尋に対するバイアス印加の他の構
成ガ(第17〜21図)
#112図ガのようにトナー残量検知等のセンサユニッ
トSを具備せず、単に現像スリーブ等にバイアスを印加
すればよい構成の堝轍装置の場合は強いて給12図例の
ようなコネクタ40を具備させなくとも、第17図的の
ように現像スリーブ等に対するバイアス印加電路九る現
像装置上面カバ一部材9についてその奥側辺の一部を突
出延長92させ、複写ai+機側に、#現III装置を
挿入装着したと自上記の上面カバ一部材突出延長部92
と接触する給電板ばね端子441を設けた構成にすわば
よい。44riその仮ばね端子441に給電する高圧ト
ランス(HVT)を示す。(11) Other configurations for applying bias to the developing sleeve (Figs. 17 to 21) Unlike Fig. #112, the sensor unit S for detecting the remaining amount of toner is not provided, and the bias is simply applied to the developing sleeve, etc. In the case of a rut device having a configuration where it is possible to do this, it is not necessary to provide the connector 40 as shown in FIG. A part of the rear side thereof is extended 92 to protrude, and when #current III device is inserted and mounted on the copying AI+ machine side, the upper cover member protrudes from the extension 92 above.
It is sufficient to adopt a configuration in which a power supply plate spring terminal 441 is provided in contact with the power supply plate spring terminal 441. 44ri shows a high voltage transformer (HVT) that supplies power to the temporary spring terminal 441.
このようにすれば@12図的のようなコネクタ40・4
1、配41402・411、揺動板413醇が不要とな
9%構成が極めて簡素化される。In this way, the connectors 40 and 4 as shown in @12
1. The arrangement 41402/411 and the swing plate 413 are not necessary, making the 9% configuration extremely simple.
又%第12図例のものは前記(8)項で説明したように
上面カバ一部材9を給電路として現像装置手前側に於て
マグネッ)a−ラ軸固足支板28−29(第10図)を
経由させて現像スリーブ1・プートスリーブ2にバイア
スを印加するようにし友ものであるが、11118〜2
1WAK現像装置奥側部材を経由させてスリーブ1・2
及びブレード12にバイアスを印加するように構成し九
列を示す。In addition, in the example shown in FIG. 12, as explained in item (8) above, the top cover member 9 is used as a power supply path to connect the magnet to the front side of the developing device. It is a good idea to apply a bias to the developing sleeve 1 and the putot sleeve 2 via the terminals 11118-2.
Sleeves 1 and 2 via the back side member of the 1WAK developing device
and nine rows are shown configured to apply a bias to the blades 12.
即ち、現像スリーブユニットとコートスリーブユニット
の駆動側即ち奥側の軸191・221を現像装置It器
器筒肯板(絶縁材)5に夫々金属製の支持板451・4
61付のボールベアリング45・46(第21図)を介
して軸受支持させる。そしてその各ボールベアリング支
持板451・461の上端部を、穏は装置の上面カバ一
部材9の央側辺に形成した下向折シ曲げ舌片部93・9
4に夫々ねじ止め452@462する。fAgIIスリ
ーブユニットトコ−トスリーブユニットの駆動側即ち奥
側の端板(7ランジ)19・22は導電拐製にしである
(電磁クラッチユニットC/は軸191に対して電気的
に〆wtirit絶縁して結合させる)。That is, the shafts 191 and 221 on the driving side, that is, on the back side, of the developing sleeve unit and the coat sleeve unit are connected to the developing device It instrument cylinder plate (insulating material) 5 using metal support plates 451 and 4, respectively.
Bearing support is provided via ball bearings 45 and 46 (Fig. 21) with 61. The upper ends of each of the ball bearing support plates 451 and 461 are bent downwardly into tongue pieces 93 and 9 formed at the center side of the upper cover member 9 of the device.
4 respectively with screws 452@462. The end plates (7 langes) 19 and 22 on the driving side, that is, the rear side, of the fAgII sleeve unit are made of conductive material (the electromagnetic clutch unit C/ is electrically insulated from the shaft 191). (combined).
上面カバ一部材9に対する給電は前述@17図的の板ば
ね端子接触式を採用したものを示す。The power supply to the upper cover member 9 employs the leaf spring terminal contact type shown in Figure 17 above.
而して現像スリーブ1には高圧トランス44→板ばね端
子441→上面カバ一部材9→その折り曲げ舌片93→
ベアリング支持板451→ベアリング45→軸191→
端板19の径路で、コートスリーブ2には上面カバ一部
@9からその折り曲げ舌片94→ベアリング支持板46
1→ベアリング46→軸221→端板22の径路で、又
ブレード12には上面カバ一部材9→それをねじ止め1
3した現像装置器筒の導電@製上スティ8を介して、夫
々同一電位のバイアスが印加状綿となるものである。The developing sleeve 1 includes a high voltage transformer 44 → a leaf spring terminal 441 → an upper cover member 9 → its bent tongue piece 93 →
Bearing support plate 451 → bearing 45 → shaft 191 →
In the path of the end plate 19, the coat sleeve 2 has a bent tongue piece 94 from the upper cover part @9 to the bearing support plate 46.
1→Bearing 46→Shaft 221→End plate 22 path, and on the blade 12 there is a top cover member 9→It is screwed 1
Bias of the same potential is applied through the conductive upper stay 8 of the developing device barrel.
上記に於てボールベアリング45・46を夫々給電路と
するもベアリング内部ではベアリングの内輪と外輪の閣
でボールが常に転がり接触しているので給電路としての
不安定性はない。In the above, although the ball bearings 45 and 46 are respectively used as power supply paths, there is no instability in the power supply paths because the balls are always rolling and in contact between the inner and outer rings of the bearings inside the bearings.
このように#J記ω)項で説明し次現像装置手前側給電
方式に対して奥側給電方式にすると電気部品に
した極めて有効なものである。In this way, it is extremely effective to use the rear side power feeding method as opposed to the front side power feeding method of the next developing device as explained in section #J, ω), which is an electrical component.
なお、高圧トランス44から上カバー11Fへの給電は
配線操作など少々面倒だが高圧トランス44と上カバ1
#9とをWXI20・図鎖線示のようにブーr47、コ
ネクタ48及び高圧トランス44のコネクタ49とで結
合させて給電を行なってもよい。It should be noted that power supply from the high voltage transformer 44 to the upper cover 11F is a little troublesome due to wiring operations, but it is necessary to connect the high voltage transformer 44 and the upper cover 1.
#9 may be connected to the WXI20 by the boolean r47, the connector 48, and the connector 49 of the high voltage transformer 44 as shown by the chain line in the figure to supply power.
又、ブレード支持1オイ8に対して現像スリーブ1及び
コートスリーブ2のペアリング支持金属部材451・4
61を結合させ、そのスティ8に対してバイアスを印加
することにょクスリープ1・2及びブレード12にバイ
アスを及ぼす↓うyc構成してもよい。In addition, pairing support metal members 451 and 4 for the developing sleeve 1 and coat sleeve 2 for the blade support 1 oil 8
61 and applying a bias to the stay 8 may be configured such that a bias is applied to the sleepers 1 and 2 and the blade 12.
(12)本願のクレーム部分
以上説明したように図示側装置はその各部に種々の工夫
を施こしてなるものであるが0本願はそのうちの特に(
lO)項で説明した現像スリーブユニットとコートスリ
ーブユニットの他の構成側部分(第16図)をクレーム
点とする。(12) Claims of the present application As explained above, the device shown in the figures is made up of various improvements to each part, but the present application particularly claims (
The other constituent parts (FIG. 16) of the developing sleeve unit and coat sleeve unit explained in section 1O) are the subject matter of the claim.
即ち、現像剤を支持するスリーブ1と、該スリーブ両端
部に一体に、現像剤を支持するスリーブ1の径よりも大
なる径の絶縁材1a・1m(スペーサリング)を設は潜
像担持部材り部の複写画像を形成しない領域に該絶縁材
1&・1aを押し付ける手R45と、該絶縁材外径の周
速と潜像担持部材り外周の周速かはぼ同一であることを
特徴とする3[装置を発明要旨とする。That is, a sleeve 1 that supports the developer and insulating materials 1a and 1m (spacer rings) having a diameter larger than the diameter of the sleeve 1 that supports the developer are integrally provided at both ends of the sleeve as a latent image bearing member. The hand R45 that presses the insulating material 1 & 1a onto the area where a copy image is not formed on the ridge portion is characterized in that the circumferential speed of the outer diameter of the insulating material and the circumferential speed of the outer circumference of the latent image bearing member are approximately the same. 3 [The device is the gist of the invention.
この構成により前記(10)項で説明したように。With this configuration, as explained in the above section (10).
潜像担持部材たるドラムDとスリーブ1との間の゛所定
すきま間隔daが確保され、第4図例装置のようなスペ
ーサコロ27・27の配殴が不要となる。又スリーブ1
を現像装置器箱から外した際のスリーブ1のスリーブ2
方向への磁気力による吸引衝突が部材1a・1aの存在
によシ防止される。A predetermined gap "da" is ensured between the drum D, which is a latent image carrying member, and the sleeve 1, and the arrangement of spacer rollers 27, 27 as in the apparatus shown in FIG. 4 is not required. Also sleeve 1
Sleeve 2 of sleeve 1 when removed from the developing device box
Attraction collision due to magnetic force in the direction is prevented by the presence of the members 1a.
第1図は一成分現像剤を用いる現像装置の一例の横断側
面図、第2図はその装置の現像スリーブと被現像部材と
してのドラムの斜視図、第3図は本発明の一実施例装置
の横断側面図、第4図は第6図PI−mV線に沿う縦断
展開平面図、第4A図はブレードの変形例の平面図、第
5図は現像装置器箱の斜視図、第6図(a)はその器筒
の奥側板の内面図、同図(b)は前側板の外面図、第7
図・M8図は器筒に対するコートスリーブユニット及び
現像スリーブユニットの組み付は懺領説明図、第9図(
a)は従来器筒の奥側板の内面図、同図(b)は前側板
の外面図、1司図(c)は奥側板の変形例の内面図、第
10図は第4図の現像装置の前側板側の外面図、第11
図は奥側板側の外向図、第12図は現像装置の奥側板側
と複写機本機側Q電気回路コネクタ及びストッパ部分の
斜視図、第13図は状像装置の被写機本機に対する装着
状態の平面図、第14図は複写機本機内に挿入され9次
いで起こし回動される前の佼下シ姿勢状態にある現像装
置の横wlr11411囲図。
第15図は起こし回動されてスペーサコロがドラム面に
当った姿勢状態にある現像装置の横断側面図、第16図
は第4図例装置の変形例装置の縦断展開平面図、第17
図は現像装置の上面カバ一部材へのバイアス給電を該部
材の蝙長突出部に対して^圧トランス側のばね板端子を
接触させることにより行なうようにした例の複写機本機
に装着状態の視像装置の平凹図、第18図乃至第21図
は現像スリーブ・コートスリーブ等に対するバイアス印
加を器@奥側板側から行なうようにした例の構・成を示
すもので、第18図は現像装置奥側板側の縦断展開平面
図、第19図は奥側板側の外面図。
第20図は現ijI!装置夷側板側の平面図、第21図
は軸受部分の斜視図、である。
1は現像スリーブ、2はコートスリーブ、6・4はそれ
等のスリーブ内のマグネットロール、Dはドラム、12
は非磁性ブレード。
んに
′;1\ イO図
$45図FIG. 1 is a cross-sectional side view of an example of a developing device using a one-component developer, FIG. 2 is a perspective view of a developing sleeve of the device and a drum as a member to be developed, and FIG. 3 is a device according to an embodiment of the present invention. 4 is a longitudinal developed plan view taken along the line PI-mV in FIG. 6, FIG. 4A is a plan view of a modified example of the blade, FIG. 5 is a perspective view of the developing device box, and FIG. (a) is an inner view of the back side plate of the vessel, and (b) is an outside view of the front side plate.
Figure M8 is an explanatory diagram for assembling the coat sleeve unit and developing sleeve unit to the container barrel, and Figure 9 (
a) is an inner view of the back side plate of the conventional barrel, (b) is an outside view of the front side plate, 1st view (c) is an inner view of a modified example of the back side plate, and Fig. 10 is a developed image of Fig. 4. External view of the front plate side of the device, No. 11
The figure is an outward view of the rear side plate side, Figure 12 is a perspective view of the rear side plate side of the developing device and the Q electric circuit connector and stopper portion on the copying machine side, and Figure 13 is a perspective view of the image device relative to the subject machine. FIG. 14 is a plan view of the installed state, and FIG. 14 is a side view of the developing device in the lower position state before it is inserted into the main body of the copying machine and then raised and rotated. FIG. 15 is a cross-sectional side view of the developing device in a state where it has been raised and rotated so that the spacer rollers are in contact with the drum surface, FIG. 16 is a longitudinal developed plan view of a modification of the device shown in FIG. 4, and FIG.
The figure shows an example of a copying machine in which bias power is supplied to the top cover member of the developing device by contacting the spring plate terminal on the voltage transformer side with the long protrusion of the member. 18 to 21 are plan-concave views of the imaging device shown in FIG. 19 is a vertically developed plan view of the back side plate of the developing device, and FIG. 19 is an external view of the back side plate. Figure 20 shows the current ijI! FIG. 21 is a plan view of the rear side plate of the device, and a perspective view of the bearing portion. 1 is a developing sleeve, 2 is a coat sleeve, 6 and 4 are magnet rolls inside those sleeves, D is a drum, 12
is a non-magnetic blade. Nni';1\I O figure $45 figure
Claims (1)
端部に一体に、現像剤を支持するスリーブの径よりも大
なる径の絶縁材を設け、¥tI像担持部材111i1部
の複写画像を形成しない領域に該絶縁材を押し付ける手
段と、該絶縁材外径の周速と1w像担持部材外周の周速
がほぼ同一であることを特徴とする構m装置。(1) A sleeve that supports the 3jt developer and an insulating material having a diameter larger than the diameter of the sleeve that supports the developer are provided integrally at both ends of the sleeve, and the copied image of the 1 part of the image bearing member 111i is A construction device characterized in that: a means for pressing the insulating material onto a non-forming region; and a circumferential speed of the outer diameter of the insulating material and a circumferential speed of the outer circumference of the 1W image bearing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15478081A JPS5857160A (en) | 1981-10-01 | 1981-10-01 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15478081A JPS5857160A (en) | 1981-10-01 | 1981-10-01 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5857160A true JPS5857160A (en) | 1983-04-05 |
Family
ID=15591730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15478081A Pending JPS5857160A (en) | 1981-10-01 | 1981-10-01 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5857160A (en) |
-
1981
- 1981-10-01 JP JP15478081A patent/JPS5857160A/en active Pending
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