JPH0425714Y2 - - Google Patents
Info
- Publication number
- JPH0425714Y2 JPH0425714Y2 JP1985150414U JP15041485U JPH0425714Y2 JP H0425714 Y2 JPH0425714 Y2 JP H0425714Y2 JP 1985150414 U JP1985150414 U JP 1985150414U JP 15041485 U JP15041485 U JP 15041485U JP H0425714 Y2 JPH0425714 Y2 JP H0425714Y2
- Authority
- JP
- Japan
- Prior art keywords
- developing sleeve
- regulating member
- plate
- ear cutting
- regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005520 cutting process Methods 0.000 claims description 59
- 230000001105 regulatory effect Effects 0.000 claims description 51
- 238000000926 separation method Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- 210000005069 ears Anatomy 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 108091008695 photoreceptors Proteins 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012421 spiking Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、現像スリーブ上に現像粉を供給し
て、該現像スリーブ上に磁気ブラシを形成し、該
磁気ブラシによつて静電潜像を可視像化する磁気
ブラシ現像装置に用いられる穂切り板の取付け機
構に関するものである。[Detailed description of the invention] (Industrial application field) The present invention supplies developer powder onto a developing sleeve to form a magnetic brush on the developing sleeve, and uses the magnetic brush to form an electrostatic latent image. This invention relates to a mechanism for attaching a cutting plate used in a magnetic brush developing device for visualizing images.
（従来の技術）
一般に、従来機種における静電複写機の磁気ブ
ラシ現像装置の現像部の穂の量、即ち穂の高さを
コントロールする穂切り板は、ドラム上にトナー
が付着する量を調整するためのもので、該トナー
付着量の調整いかんによつては、複写機の画像品
質に大きな影響を及ぼすため、該穂切り板と現像
ローラ間の距離を高精度に設定する必要がある。
従来の穂切り板は、調整螺子等により、現像ハウ
ジングの側板に取付けられ、スキマゲージ等を使
用して穂切り板と現像スリーブの間隔を調整し、
現像剤の穂高調整を行つていた。(Prior Art) In general, the brush cutting plate that controls the amount of spikes in the developing section of the magnetic brush developing device of electrostatic copying machines in conventional models, that is, the height of the spikes, adjusts the amount of toner that adheres to the drum. Since the adjustment of the toner adhesion amount has a large effect on the image quality of the copying machine, it is necessary to set the distance between the spiking plate and the developing roller with high precision.
Conventional ear cutting plates are attached to the side plate of the developer housing with adjustment screws, etc., and the gap between the ear cutting plate and the developing sleeve is adjusted using a feeler gauge, etc.
The height of the developer was being adjusted.
（考案が解決しようとする問題点）
しかしながら、穂高を設定するための穂切り板
と現像スリーブの間隔は、高精度が要求されるた
め、スキマゲージを差し込む時の圧力の相違によ
つても、スリーブの端と中央部等での測定場所に
よつても、調整誤差を生じ、完璧を期するために
は、熟練者による微妙な調整が必要であり、作業
者に対する精神的な負担が大きく、しかも、工数
や調整時間が大きい割に歩止りが悪く、調整後に
変動が生じて再調整を要する場合が多かつたので
ある。また、穂切り板の調整が不良の場合は、画
像にムラが出たり、画面全体にトナー汚れが生じ
たりする等の欠点を有していたのである。(Problem to be solved by the invention) However, since high precision is required for the spacing between the panicle cutting plate and the developing sleeve for setting the panicle height, the difference in pressure when inserting the feeler gauge may cause Adjustment errors may occur depending on where the measurement is made, such as at the end or center of the sleeve, and delicate adjustments by experienced personnel are required to ensure perfection, which places a large mental burden on the worker. Furthermore, the yield rate was poor despite the large number of man-hours and adjustment time, and fluctuations occurred after adjustment, often requiring readjustment. Furthermore, if the cutting board is improperly adjusted, there are drawbacks such as unevenness in the image and toner stains on the entire screen.
本考案は、前述した従来技術の欠点を解消し、
スキマゲージ等の特別の調整用測定器を使用する
ことなく、簡単な取付け作業のみで穂切り板の穂
切り高さを正確且つ確実に設定することのできる
穂切り板の取付け機構を提供し、もつて画質の向
上と安定化を図ることを目的とするものである。 The present invention eliminates the drawbacks of the prior art mentioned above,
To provide an attachment mechanism for an ear cutting board that can accurately and reliably set the ear cutting height of the ear cutting board by simple installation work without using a special adjustment measuring device such as a feeler gauge, The purpose of this is to improve and stabilize image quality.
（問題を解決するための手段）
上記目的を達成するために本考案が採用する手
段は、
内部に固定或いは回転可能なマグネツトローラ
を収容した現像スリーブ上に現像粉を供給して、
該現像スリーブ上に現像粉による磁気ブラシを形
成すると共に、該磁気ブラシの穂高を穂切り板に
よつて調整し、該磁気ブラシで静電潜像を可視像
化する磁気ブラシ現像装置に於いて、
該現像スリーブを保持するための現像スリーブ
支持板と、該現像スリーブ支持板に、スリーブに
対して近接離間する方向にスライド可能に設けら
れる規制部材と、該規制部材のスリーブに近接す
る側への移動量を規定する近接位置規制手段と、
該近接位置規制手段より予め設定された穂切高さ
だけ離間した位置において上記規制部材の移動量
を規定する離間位置規制手段と、上記穂切り板と
規制部材とを調整自在に取付ける取付手段であつ
て、穂切り板を現像スリーブ表面に当接せしめ、
且つ上記規制部材を近接位置規制手段に当接した
状態まで、該穂切り板と上記規制部材とを一体的
に取付ける取付手段と、上記離間位置規定手段に
よつて規定された位置において上記支持板に上記
規制部材を固定する固定手段と、を具備すること
を特徴とする穂切り板の取付け機構である。(Means for Solving the Problem) The means adopted by the present invention to achieve the above object is to supply developing powder onto a developing sleeve containing a fixed or rotatable magnetic roller inside,
In a magnetic brush developing device, a magnetic brush is formed using developer powder on the developing sleeve, and the height of the ears of the magnetic brush is adjusted by a cutting plate, and the electrostatic latent image is visualized with the magnetic brush. a developing sleeve support plate for holding the developing sleeve; a regulating member provided on the developing sleeve supporting plate so as to be slidable in a direction toward and away from the sleeve; and a side of the regulating member close to the sleeve. Proximity position regulating means for regulating the amount of movement to;
A separation position regulating means for regulating the amount of movement of the regulating member at a position spaced apart from the proximity position regulating means by a preset ear cutting height, and a mounting means for adjustablely attaching the ear cutting plate and the regulating member. Then, bring the cutting board into contact with the surface of the developing sleeve,
and a mounting means for integrally attaching the panicle cutting plate and the regulating member until the regulating member is in contact with the proximity position regulating means, and a mounting means for integrally mounting the panicle cutting plate and the regulating member, and the supporting plate at the position defined by the separation position regulating means. A fixing means for fixing the above-mentioned regulating member to the ear cutting plate.
（作用）
上記構成の穂切り板の取付け機構によれば、穂
切り板を現像スリーブ表面に当接せしめ、且つ規
制部材を近接位置規制手段に当接した状態で、取
付手段によつて穂切り板と規制部材とを一体的に
取付ける。次に、離間位置規定手段によつて規定
された位置において固定手段によつて支持板に規
制部材を固定することによつて穂切り板と現像ス
リーブ表面との間に適切な穂切高さを得ることが
できる。(Function) According to the attachment mechanism for the ear cutting plate having the above configuration, the ears are cut by the attachment means with the ear cutting plate in contact with the surface of the developing sleeve and the regulating member in contact with the proximity position regulating means. The plate and the regulating member are integrally attached. Next, by fixing the regulating member to the support plate by the fixing means at the position specified by the separation position specifying means, an appropriate ear cutting height is established between the ear cutting plate and the surface of the developing sleeve. Obtainable.
（実施例）
以下、実施例によつて本考案を具体的に説明す
る。(Example) Hereinafter, the present invention will be specifically explained with reference to Examples.
第１図ａは、本考案に係る穂切り板の取付け機
構を示す断面図で、第１図ｂは、第１図ａに示す
Ａ−Ａ部分断面図である。 FIG. 1a is a sectional view showing the attachment mechanism of the ear cutting board according to the present invention, and FIG. 1b is a partial sectional view taken along the line AA shown in FIG. 1a.
第２図は、本考案に係る穂切り板の取付け説明
図で第２図ａ，ｂは、第１図ａ，ｂにそれぞれ対
応している。 FIG. 2 is an explanatory diagram for installing the ear cutting board according to the present invention, and FIGS. 2a and 2b correspond to FIGS. 1a and 1b, respectively.
第１図において、１は現像ハウジングで複写機
本体内の感光体ドラム２を近接して設けられ、周
知の如く感光体ドラム２上の静電潜像を顕像化す
るため、磁気ブラシ現像装置を内蔵するものであ
る。 In FIG. 1, reference numeral 1 denotes a developer housing, which is provided in close proximity to the photoreceptor drum 2 in the main body of the copying machine, and is a magnetic brush developing device for visualizing the electrostatic latent image on the photoreceptor drum 2, as is well known. It has a built-in
現像ハウジング１内に装置される磁気ブラシ現
像装置は、ローラ状静止永久磁石６ａと円筒状の
現像スリーブ６、及び攪拌ローラ１１を有し、現
像ハウジング１の上方に設けられている現像剤供
給装置１ａにより供給される現像剤トナー１２
（以下、単にトナーという。）を、感光体ドラム２
表面に形成された静電潜像に付着させ、これを顕
像化するのである。 A magnetic brush developing device installed in the developing housing 1 includes a roller-shaped stationary permanent magnet 6a, a cylindrical developing sleeve 6, and an agitation roller 11, and a developer supplying device provided above the developing housing 1. Developer toner 12 supplied by 1a
(hereinafter simply referred to as toner) is transferred to the photoreceptor drum 2.
It is applied to the electrostatic latent image formed on the surface and visualized.
３は磁気ブラシ用穂切り板で、穂切り板先端部
３ａにより磁気ブラシ穂高Ｈを規制するものであ
る。１３は現像ハウジング１の側壁を兼ねた現像
スリーブ支持板で、その一部には角孔５が所定の
位置に、即ち図面上に於いて現像スリーブの上方
の位置に設けられ、そして角孔５に嵌入し、角ブ
ロツク４を固定するための貫通孔８ａが、上端部
から角孔５に貫通して設けられている。前記角孔
５は長方形状であり、その角孔５には角ブロツク
４が嵌入され、その角ブロツク４は嵌合部４ちと
ガイド部４ｂからなり、ガイド部４ｂは角孔５と
角ブロツク４とのガイドの役割と、角孔５と角ブ
ロツク４と隙間をカバーする役割をなすもので、
嵌合部４ａの下端部に突起状に設けられている。
尚、上記角ブロツク４は規制部材を構成し、角孔
５の底面は近接位置規制手段を構成し、また角孔
５の上面は離間位置規制手段を構成するものであ
る。 Reference numeral 3 denotes a magnetic brush ear cutting plate, which regulates the height H of the magnetic brush by a tip portion 3a of the magnetic brush. Reference numeral 13 denotes a developing sleeve support plate which also serves as a side wall of the developing housing 1. A square hole 5 is provided in a part of the plate at a predetermined position, that is, at a position above the developing sleeve in the drawing. A through hole 8a for fitting into and fixing the square block 4 is provided to pass through the square hole 5 from the upper end. The square hole 5 has a rectangular shape, and a square block 4 is fitted into the square hole 5. The square block 4 consists of a fitting part 4 and a guide part 4b. It plays the role of a guide between the square hole 5 and the square block 4, and the role of covering the gap between the square hole 5 and the square block 4.
A projection is provided at the lower end of the fitting portion 4a.
The square block 4 constitutes a regulating member, the bottom surface of the square hole 5 constitutes a proximity position regulating means, and the upper surface of the square hole 5 constitutes a separation position regulating means.
また前記角ブロツク４には、第１図ｂにおいて
示されている通り、図面上の左側面から右側面に
貫通する貫通孔９ａ，１０ａが設けられ、前記貫
通孔９ａ，１０ａはある程度の寸法誤差を許容で
きるように、その直径が螺子９，１０の直径より
大きく設けられている。例えば、螺子９，１０の
直径が３mmであれば貫通孔９ａ，１０ａは直径
3.5mmぐらいあれば充分である。その理由は好適
な画像を得るために必要な穂切り板ｈの許容差
は、0.05mm程度というオーダーであるためであ
る。 Further, as shown in FIG. 1b, the square block 4 is provided with through holes 9a and 10a that penetrate from the left side to the right side in the drawing, and the through holes 9a and 10a have a certain degree of dimensional error. The diameter thereof is set larger than the diameter of the screws 9 and 10 to allow for. For example, if the diameter of the screws 9 and 10 is 3 mm, the diameter of the through holes 9a and 10a is
Approximately 3.5mm is sufficient. The reason for this is that the tolerance of the ear cutting plate h required to obtain a suitable image is on the order of about 0.05 mm.
前記貫通孔９ａ，１０ａは、角ブロツク４に穂
切り板３を取付けるためのもので、角ブロツク４
を角孔５上面に接した状態で穂切り板３を取付け
た時に穂切り板３とスリーブ６の距離ｈが適切な
値（適切な値といつても実際に組立てた時に許容
差がでるために調整が必要なのである。）になる
ように設計されている。このように、貫通孔９
ａ，１０ａと螺子９，１０の直径の差によつて、
角ブロツク４と穂切り板３は調整可能に取付けら
れるのである。 The through holes 9a and 10a are for attaching the ear cutting plate 3 to the square block 4.
When the ear cutting plate 3 is attached with the ear cutting plate 3 in contact with the top surface of the square hole 5, the distance h between the ear cutting plate 3 and the sleeve 6 must be set to an appropriate value (because even if it is an appropriate value, there will be a tolerance when actually assembling it). ). In this way, the through hole 9
Due to the difference in diameter between a, 10a and screws 9, 10,
The corner block 4 and the ear cutting plate 3 are attached so as to be adjustable.
また、角ブロツク４を角孔５の上面に固定する
ために角ブロツク４の上面に雌螺子８ｂが設けら
れている。つまり、前述の現像スリーブ支持板１
３の上部にもうけた貫通孔８ａを通して、螺子８
により角ブロツクが角孔上面に螺子止めされるの
である。 Furthermore, a female screw 8b is provided on the top surface of the square block 4 in order to fix the square block 4 to the top surface of the square hole 5. In other words, the aforementioned developing sleeve support plate 1
3 through the through hole 8a provided in the upper part of the screw 8.
The square block is screwed onto the top surface of the square hole.
穂切り板３は、雌螺子部９ｂ，１０ｂを有し薄
板状のもので、前述の角ブロツク４に設けられた
貫通孔９ａ，１０ａを通して螺子９，１０によつ
て角ブロツク４に螺子止めされ、角ブロツク４が
螺子８によつて現像スリーブ支持板１３に螺子止
めされることにより現像スリーブ６に対して一定
の位置で固定されることになるのである。又、そ
の一定の位置とは現像スリーブ６の軸方向と穂切
り板３の長手方向が一致しかつ、現像スリーブ６
と穂切り板３の距離ｈが適切な一定値になる位置
である。 The ear cutting plate 3 is a thin plate having internal threads 9b and 10b, and is screwed to the square block 4 with screws 9 and 10 through through holes 9a and 10a provided in the square block 4 described above. By screwing the square block 4 to the developing sleeve support plate 13 with the screw 8, it is fixed at a fixed position with respect to the developing sleeve 6. In addition, the certain position means that the axial direction of the developing sleeve 6 and the longitudinal direction of the ear cutting plate 3 coincide with each other, and the developing sleeve 6
This is the position where the distance h between the ear cutting board 3 becomes an appropriate constant value.
以下、穂切り板３の取付け作業について説明す
る。 The installation work of the ear cutting board 3 will be explained below.
第２図に示すように、規制部材を構成する角ブ
ロツク４を角孔５に挿入し螺子８の仮締めを行
う。ただし、角ブロツク４の底面は角孔５の底面
（近接位置規制手段）に当接させておく。次に穂
切り板３を現像スリーブ６の表面に当接させた状
態で取付手段を構成する螺子９，１０により穂切
り板３を角ブロツク４に固定させる。そして固定
手段を構成する螺子８を本締をすることにより、
角ブロツク４の上面と角孔５の上面（離間位置規
定手段）を当接させる。以上の作業を行うことに
より、角孔の垂直方向の長さH1と角ブロツク４
の嵌合部４ａの垂直方向の長さH2との差h′によ
つて穂切り板３と現像スリーブ６との距離ｈが設
定される。即ち、角ブロツク４と角孔５の垂直方
向の長さH1とH2の加工精度を高くすることによ
り、正確に上記距離が簡単に設定されるのであ
る。というのは設計計算で正確に寸法を出してい
ても組立てを行う時に部品の許容誤差により誤差
が出て来るのを現像スリーブ６に穂切り板３を当
接して、角ブロツク４に固定する作業を行うこと
により、上記誤差を吸収しているのである。即
ち、上記設定しようとする距離ｈが上記垂直方向
の距離H1，H2の寸法差のみに影響を受けるもの
である。又、角ブロツク４のガイド部４ｂの長さ
H3はH1−H2＜H3であればよい。 As shown in FIG. 2, a square block 4 constituting a regulating member is inserted into a square hole 5, and a screw 8 is temporarily tightened. However, the bottom surface of the square block 4 is brought into contact with the bottom surface of the square hole 5 (proximity position regulating means). Next, with the ear cutting plate 3 in contact with the surface of the developing sleeve 6, the ear cutting plate 3 is fixed to the square block 4 by screws 9 and 10 constituting the attachment means. Then, by fully tightening the screw 8 constituting the fixing means,
The upper surface of the square block 4 and the upper surface of the square hole 5 (separation position defining means) are brought into contact. By performing the above operations, the vertical length of the square hole H 1 and the square block 4
The distance h between the ear cutting plate 3 and the developing sleeve 6 is determined by the difference h' from the vertical length H2 of the fitting portion 4a. That is, by increasing the machining accuracy of the vertical lengths H1 and H2 of the square block 4 and the square hole 5, the above-mentioned distance can be easily and accurately set. This is because even if the dimensions are accurate in the design calculations, errors may occur due to component tolerances during assembly. By doing this, the above error is absorbed. That is, the distance h to be set is affected only by the dimensional difference between the vertical distances H 1 and H 2 . Also, the length of the guide portion 4b of the square block 4
H 3 only needs to satisfy H 1 −H 2 <H 3 .
次に他の実施例について説明する。 Next, other embodiments will be described.
第３図ａは本考案の他の実施例に係る穂切り板
の取付け機構を示す断面図で第３図ｂは、本考案
の他の実施例に係る穂切り板の取付け説明図であ
る。 FIG. 3a is a cross-sectional view showing a mechanism for attaching an ear cutting plate according to another embodiment of the present invention, and FIG. 3b is an explanatory diagram of attaching an ear cutting plate according to another embodiment of the present invention.
本考案の他の実施例として、スペーサ１５を設
けることにより、スペーサの厚みh1を精度よく加
工してそのh1を現像スリーブ６と穂切り板３との
距離ｈの適切な値にしておくことにより、該距離
ｈを設定するものである。即ち、スペーサの厚み
h1が離間位置規制手段を構成するのである。そし
て、前述の実施例において使用した螺子８の役割
が前述の例では、角ブロツク４に角孔５の上面に
持ち上げて当接させるのに対し、今回の例では、
角ブロツク４を下方に押さえつける役割をなすも
のである。従つて、前述に設けてあつた雌螺子８
ｂがなくなるとともに、現像スリーブ支持板に設
けてあつた螺子穴８ａが、雌螺子８ｃとなるので
ある。又、角ブロツク４と角孔５の垂直方向の長
さH2，H1も加工の精度が要求されず、その関係
も該長さH1，H2の差ｄが現像スリーブ６と穂切
り板３との距離ｈより0.5mm程度長く設定してお
けばよい。又、角ブロツク４の一部に設けられて
いるガイド部４ａは、第３図中で上部に設けられ
ている。スペーサ１５は、厚さh1に加工したもの
で、一端面が直角に曲げられ位置が規制されるよ
うにしている。このスペーサ１５は角孔５の底面
に設けるもので、上から角ブロツク４がスペーサ
１５を押さえつける状態になる。 As another embodiment of the present invention, by providing a spacer 15, the thickness h1 of the spacer is processed with high precision so that the thickness h1 is set to an appropriate value for the distance h between the developing sleeve 6 and the ear cutting plate 3. By this, the distance h is set. That is, the thickness of the spacer
h1 constitutes the separation position regulating means. The role of the screw 8 used in the above-mentioned embodiment is to lift the square block 4 to the top surface of the square hole 5 and bring it into contact with it, but in this example,
This serves to press down the square block 4. Therefore, the female screw 8 provided above
b disappears, and the screw hole 8a provided in the developing sleeve support plate becomes a female screw 8c. Further, the vertical lengths H 2 and H 1 of the square block 4 and the square hole 5 do not require high machining accuracy, and the difference d between the lengths H 1 and H 2 is the same as that between the developing sleeve 6 and the ear cutter. It is sufficient to set it approximately 0.5 mm longer than the distance h to the plate 3. Further, the guide portion 4a provided in a part of the square block 4 is provided at the upper part in FIG. The spacer 15 is processed to have a thickness of h 1 , and one end surface is bent at a right angle so that its position is regulated. This spacer 15 is provided on the bottom surface of the square hole 5, and the square block 4 presses the spacer 15 from above.
以下、穂切り板３の取付け作業について説明す
る。 The installation work of the ear cutting board 3 will be explained below.
第３図ｂに示すように、前述の実施例と同じよ
うに規制部材である角ブロツク４を角孔５の底面
（近接位置規定手段）に当接させ、また穂切り板
３を現像スリーブ６の周面に当接させた状態で、
取付手段である螺子９，１０により、角ブロツク
４に穂切り板３を固定する。次にスペーサ１５を
角孔５の底面に設置して固定手段である螺子８に
よつて角ブロツク４を固定する。 As shown in FIG. 3b, the square block 4 serving as a regulating member is brought into contact with the bottom surface of the square hole 5 (proximity position regulating means) in the same manner as in the previous embodiment, and the ear cutting plate 3 is brought into contact with the developing sleeve 6. When in contact with the circumferential surface of
The ear cutting plate 3 is fixed to the square block 4 by screws 9 and 10, which are attachment means. Next, a spacer 15 is installed on the bottom surface of the square hole 5, and the square block 4 is fixed with a screw 8 serving as a fixing means.
上記作業を行うことにより、前述の実施例を同
様に組立時に起こる誤差を吸収して、スペーサ１
５の厚さh1によつてのみ現像スリーブ６と穂切り
板３との距離ｈが影響を受けることになるのであ
る。 By performing the above operations, the errors that occur during assembly can be absorbed in the same manner as in the previous embodiment, and the spacer 1
The distance h between the developing sleeve 6 and the ear cutting plate 3 is affected only by the thickness h1 of the developing sleeve 6.
（効果）
以上説明したように本考案は、現像スリーブを
保持するための現像スリーブ支持板と、該現像ス
リーブ支持板に、スリーブに対して近接離間する
方向にスライド可能に設けられる規制部材と、該
規制部材のスリーブに近接する側への移動量を規
定する近接位置規制手段と、該近接位置規制手段
より予め設定された穂切高さだけ離間した位置に
おいて上記規制部材の移動量を規定する離間位置
規制手段と、上記穂切り板と規制部材とを調節自
在に取付ける取付手段であつて、穂切り板を現像
スリーブ表面に当接せしめ、且つ上記規制部材を
近接位置規制手段に当接した状態で、該穂切り板
と上記規制部材とを一体的に取付ける取付手段
と、上記離間位置規定手段によつて規定された位
置において上記支持板に上記規制部材を固定する
固定手段と、を具備することを特徴とする穂切り
板の取付機構であるので、スキマゲージ等の特別
の調整用測定器を使用することなく、簡単な取付
け作業のみで穂切り板の穂切り高さを正確且つ確
実に設定することのできる。しかもマグネツトロ
ーラや現像ハウジングの製作時に起こる許容誤差
や組立時に起こる誤差を吸収できるため、要求さ
れる穂切り高さの精度を得ることができるといつ
た優れた効果を有するものである。(Effects) As explained above, the present invention includes a developing sleeve support plate for holding the developing sleeve, a regulating member provided on the developing sleeve support plate so as to be slidable in a direction toward and away from the sleeve. Proximity position regulating means for regulating the amount of movement of the regulating member toward the side close to the sleeve, and regulating the amount of movement of the regulating member at a position spaced apart from the proximity position regulating means by a preset ear cutting height. A mounting means for adjustably attaching a separating position regulating means, the above-mentioned ear cutting plate and the regulating member, the above-mentioned ear cutting plate being brought into contact with the surface of the developing sleeve, and the above-mentioned regulating member being brought into contact with the proximity position regulating means. and a fixing means for fixing the regulating member to the support plate at a position defined by the spacing position defining means. Since this is an attachment mechanism for the ear cutting board, it is possible to accurately and reliably set the ear cutting height of the ear cutting board with a simple installation process, without using a special adjustment measuring device such as a feeler gauge. Can be set to . Furthermore, since tolerance errors occurring during the manufacturing of the magnet roller and developer housing and errors occurring during assembly can be absorbed, it has the excellent effect of being able to obtain the required precision in the cutting height.
第１図ａは本考案に係る穂切り板の取付け機構
を示す断面図、第１図ｂは第１図ａに示すＡ−Ａ
部分断面図、第２図ａは本考案に係る穂切り板の
取付け説明図、第２図ｂは第２図ａに示すＢ−Ｂ
部分断面図、第３図ａは本考案の他の実施例を示
す穂切り板の取付け機構の断面図、第３図ｂは第
３図ａに示す穂切り板の取付け説明図である。
３……穂切り板、４……規制部材（角ブロツ
ク）、５……角孔、６……現像スリーブ、１５…
…スペーサ、８……固定規制手段（螺子）、９，
１０……取付手段（螺子）。
FIG. 1a is a sectional view showing the attachment mechanism of the ear cutting board according to the present invention, and FIG. 1b is a cross-sectional view taken along line A-A shown in FIG. 1a.
A partial cross-sectional view, FIG. 2a is an explanatory diagram of installing the ear cutting board according to the present invention, and FIG. 2b is a line B-B shown in FIG. 2a.
FIG. 3a is a sectional view of an attachment mechanism for the ear cutting board showing another embodiment of the present invention, and FIG. 3b is an explanatory diagram for attaching the ear cutting board shown in FIG. 3a. 3... Ear cutting plate, 4... Regulating member (square block), 5... Square hole, 6... Developing sleeve, 15...
...Spacer, 8...Fixing regulating means (screw), 9,
10...Mounting means (screw).
Claims (1)
を収容した現像スリーブ上に現像粉を供給して、
該現像スリーブ上に現像粉による磁気ブラシを形
成すると共に、該磁気ブラシの穂高を穂切り板に
よつて調整し、該磁気ブラシで静電潜像を可視像
化する磁気ブラシ現像装置に於いて、 該現像スリーブを保持するための現像スリーブ
支持板と、 該現像スリーブ支持板に、スリーブに対して近
接離間する方向にスライド可能に設けられる規制
部材と、 該規制部材のスリーブに近接する側への移動量
を規定する近接位置規制手段と、 該近接位置規制手段より予め設定された穂切高
さだけ離間した位置において上記規制部材の移動
量を規定する離間位置規制手段と、 上記穂切り板と規制部材とを調節自在に取付け
る取付手段であつて、穂切り板を現像スリーブ表
面に当接せしめ、且つ上記規制部材を接近位置規
制手段に当接した状態で、該穂切り板と上記規制
部材とを一体的に取付ける取付手段と、 上記離間位置規定手段によつて規定された位置
において上記支持板に上記規制部材を固定する固
定手段と、 を具備することを特徴とする穂切り板の取付け機
構。[Claims for Utility Model Registration] Developing powder is supplied onto a developing sleeve containing a fixed or rotatable magnetic roller inside,
In a magnetic brush developing device, a magnetic brush is formed using developer powder on the developing sleeve, and the height of the ears of the magnetic brush is adjusted by a cutting plate, and the electrostatic latent image is visualized with the magnetic brush. a developing sleeve support plate for holding the developing sleeve; a regulating member provided on the developing sleeve supporting plate so as to be slidable in a direction toward and away from the sleeve; and a side of the regulating member close to the sleeve. an adjacent position regulating means for regulating the amount of movement of the regulating member at a position spaced apart from the proximate position regulating means by a preset ear cutting height; A mounting means for adjustably attaching a plate and a regulating member, wherein the scion cutting plate and the above-mentioned An ear cutting board characterized by comprising: a mounting means for integrally mounting the regulating member; and a fixing means for fixing the regulating member to the support plate at a position defined by the separation position defining means. mounting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985150414U JPH0425714Y2 (en) | 1985-09-30 | 1985-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985150414U JPH0425714Y2 (en) | 1985-09-30 | 1985-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6258465U JPS6258465U (en) | 1987-04-11 |
| JPH0425714Y2 true JPH0425714Y2 (en) | 1992-06-19 |
Family
ID=31066538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985150414U Expired JPH0425714Y2 (en) | 1985-09-30 | 1985-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425714Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564168A (en) * | 1979-06-22 | 1981-01-17 | Canon Inc | Powder developing device in image forming device |
| JPS59189379A (en) * | 1983-04-13 | 1984-10-26 | Fuji Xerox Co Ltd | Developing device |
-
1985
- 1985-09-30 JP JP1985150414U patent/JPH0425714Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564168A (en) * | 1979-06-22 | 1981-01-17 | Canon Inc | Powder developing device in image forming device |
| JPS59189379A (en) * | 1983-04-13 | 1984-10-26 | Fuji Xerox Co Ltd | Developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6258465U (en) | 1987-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0714458U (en) | Doctor blade mounting structure and doctor gap adjusting structure for developing device | |
| JPH0425714Y2 (en) | ||
| JPH0626921Y2 (en) | Non-adjustable mounting mechanism of the developing unit cutting board in the electrostatic copying machine | |
| JPS647460Y2 (en) | ||
| JPS64695B2 (en) | ||
| US4426148A (en) | Mounting structure for developing unit with a magnetic brush | |
| JPH0317317Y2 (en) | ||
| JPH073409Y2 (en) | Image forming device developing device | |
| JPS61153670A (en) | Developing machine fitting device of copying machine | |
| JPH0547952U (en) | Development device | |
| JPH0546019A (en) | Developing device | |
| JPS63200175A (en) | Developing device | |
| JPS59189379A (en) | Developing device | |
| JPS59185372A (en) | Developing device of electrophotographic copying machine | |
| JPH02183283A (en) | Developing device | |
| CN211467845U (en) | UV-LED light source system positioning structure and printing equipment | |
| JPH0645969Y2 (en) | Image forming device | |
| JPS6344829Y2 (en) | ||
| JPH0722683Y2 (en) | Magnetic pole position detection jig | |
| JPS59227636A (en) | Method of positioning stopper for rear edge of paper in paper feed cassette | |
| JPH0719801Y2 (en) | Exposure head mounting jig for electrophotographic printer | |
| JPH04149582A (en) | Development device of image forming device | |
| JP4208164B2 (en) | Doctor blade height adjustment device | |
| JPH03253880A (en) | Doctor blade fitting structure | |
| JPH0432693Y2 (en) |