JPH0264584A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPH0264584A JPH0264584A JP63215056A JP21505688A JPH0264584A JP H0264584 A JPH0264584 A JP H0264584A JP 63215056 A JP63215056 A JP 63215056A JP 21505688 A JP21505688 A JP 21505688A JP H0264584 A JPH0264584 A JP H0264584A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- transfer means
- developer
- developing
- developing sleeve
- 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
- 238000005192 partition Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 8
- 230000032258 transport Effects 0.000 abstract description 10
- 238000000638 solvent extraction Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、複写機等の画像形成装置における現像装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a developing device in an image forming apparatus such as a copying machine.
（従来の技術）
複写機等の画像形成装置における現像装置には着色顔料
であるトナーをいわゆるキャリアと呼ばれる鉄粉に混合
した２成分系の現像剤を使用するものがある。かかる現
像装置にはトナーとキャリアを十分に混合・攪拌し、該
混合・攪拌された現像剤を所定方向に移送する移送手段
が設けられている。(Prior Art) Some developing devices in image forming apparatuses such as copying machines use a two-component developer in which toner, which is a colored pigment, is mixed with iron powder, which is called a carrier. Such a developing device is provided with a transport means for sufficiently mixing and stirring the toner and carrier and transporting the mixed and stirred developer in a predetermined direction.
以上の従来技術に係る現像装置を先ず第３図により説明
する。第３図は現像装置の現像剤を攪拌・移送するため
の現像剤攪拌装置回りの平断面図を示しており、図中１
００はトナー補給装置１０６のトナー補給口１０６ａか
ら補給されたトナーをキャリアと攪拌しつつ、図中矢印
の右方に現像剤を移送する第１移送手段であり、該第１
移送手段１００の一側には当該第１移送手段１００から
現像剤を受は取り、更にトナーとキャリアとを攪拌しつ
つ、図中矢印の左方に現像剤を移送して、再度該現像剤
を第１移送手段１００へ引き渡す第２移送手段１０１か
配設されている。The developing device according to the above-mentioned prior art will first be explained with reference to FIG. Figure 3 shows a plan sectional view of the area around the developer stirring device for stirring and transporting the developer in the developing device.
Reference numeral 00 denotes a first transfer means that transfers the developer to the right of the arrow in the figure while stirring the toner supplied from the toner supply port 106a of the toner supply device 106 with the carrier.
One side of the transfer means 100 receives the developer from the first transfer means 100, and while stirring the toner and carrier, transfers the developer to the left of the arrow in the figure, and then transfers the developer again. A second transfer means 101 is also provided for transferring the second transfer means 100 to the first transfer means 100.
第１、第２移送手段１００，１０１間には該第１、第２
移送手段１００．１０１でそれぞれ攪拌・移送される現
像剤どうしの混合を防止する仕切板１０２が設けられて
おり、該仕切板１０２両端部と現像装置本体側壁１１０
，１１１間には第１、第２移送手段Ｚｏｏ、１０１間に
現像剤を移動させる現像循環通路１０３，１０４か設け
られている。また第２移送手段１０１の一側には現像ス
リーブ１０５が配設され、該現像スリーブｌＯ５により
第２移送手段１０１にて搬送されつつある現像剤中のト
ナーのみが感光ドラム等の方へ供給され、現像作業がな
される。Between the first and second transfer means 100 and 101, the first and second
A partition plate 102 is provided to prevent the developers stirred and transferred by the transfer means 100 and 101 from mixing with each other, and both ends of the partition plate 102 and the side wall 110 of the main body of the developing device
, 111 are provided with developer circulation passages 103 and 104 for moving the developer between the first and second transfer means Zoo and 101. Further, a developing sleeve 105 is disposed on one side of the second transporting means 101, and the developing sleeve 105 supplies only the toner in the developer being transported by the second transporting means 101 to the photosensitive drum or the like. , development work is performed.
（発明が解決しようとする課題）
しかしながら、第３図て示す従来技術においては、トナ
ー補給装置１０６のトナー補給口１０６ａをほぼ第１移
送手段ｌＯＯの軸方向長さいっばいに設けているため、
補給されたトナーが、第１移送手段１００側から第２移
送手段１０１側へ現像剤を移送させる循環通路１０３内
へ矢印て示す如く直接入り込み、キャリアと十分に攪拌
・混合されないまま現像スリーブ１０５の方へ到着して
しまうという不都合かあった。このため現像スリーブ１
０５では部分的にトナー濃度か濃くなり、現像むらが発
生するという不都合があった。(Problem to be Solved by the Invention) However, in the prior art shown in FIG. 3, since the toner replenishment port 106a of the toner replenishment device 106 is provided almost at the same length in the axial direction of the first transfer means lOO,
The replenished toner directly enters the circulation path 103 that transfers the developer from the first transfer means 100 side to the second transfer means 101 side, as shown by the arrow, and is not sufficiently stirred and mixed with the carrier until it enters the developing sleeve 105. There was the inconvenience of arriving in the wrong direction. For this reason, developing sleeve 1
In No. 05, there was a problem that the toner density was partially high and uneven development occurred.
一方、以上の不都合を無くすため、第４図で示される如
く、第１移送手段２００を第２移送手段２０１や現像ス
リーブ２０２の現像領域幅より長く延長し、該第１移送
手段２００の延長端部にトナー補給装置２０３を現像装
置本体２１０とは別体に設けて、これのトナー補給口２
０３ａから第１移送手段２００にトナーを補給せんとす
るものもあるか、かかる現像装置は装置か大型化、複雑
化するという欠点かある。On the other hand, in order to eliminate the above-mentioned inconvenience, as shown in FIG. A toner replenishing device 203 is provided separately from the developing device main body 210, and the toner replenishing port 2 of this is provided separately from the developing device main body 210.
Some developing devices replenish toner from 03a to the first transfer means 200, but such a developing device has the disadvantage that it becomes larger and more complicated.
本発明は以上の問題点に鑑みてなされたもので、その目
的とする処は、現像スリーブにトナーとキャリアを十分
混合攪拌した現像剤を供給すると共に、装置も小型でコ
ンパクトな現像装置を提供するにある。The present invention has been made in view of the above-mentioned problems, and its purpose is to supply a developing sleeve with a developer in which toner and carrier are sufficiently mixed and stirred, and to provide a small and compact developing device. There is something to do.
（課題を解決するための手段）
上記目的を達成すべく本発明は、トナー補給装置と現像
スリーブ間に軸方向が平行に配設され、互いに軸方向異
方向にトナーとキャリアとからなる現像剤を攪拌、移送
する第１、第２の移送手段と、該移送手段間に移送中の
現像剤の混合防止のために設けられ、その両端部側にト
ナー補給装置側に配設される第１の移送手段から現像ス
リーブ側に配設される第２の移送手段側へ現像剤を移動
させる第１の循環通路と第２の移送手段側から第１の移
送手段側へ現像剤を移動させる第２の循環通路とが配設
された仕切板とを有する現像装置において、前記トナー
補給装置のトナー補給口を前記第１の移送手段の第１の
循環通路側以外の第２の循環通路側又は仕切板側に設け
たことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an arrangement in which a toner replenishing device and a developing sleeve are disposed parallel to each other in the axial direction, and a developer consisting of toner and carrier is disposed in opposite directions in the axial direction. first and second transfer means for agitating and transferring the toner, and a first transfer means provided between the transfer means to prevent mixing of the developer during transfer, and a first transfer means disposed at both ends of the toner replenishing device. a first circulation path for moving the developer from the transfer means to a second transfer means disposed on the developing sleeve side; and a first circulation path for moving the developer from the second transfer means side to the first transfer means side. In the developing device, the toner replenishment port of the toner replenishing device is located on a second circulation path side other than the first circulation path side of the first transfer means, or It is characterized by being provided on the partition plate side.
（作用）
現像剤は第１の移送手段から第１の循環通路を経て第２
の移送手段へ移送され、その後該第２の移送手段から第
２の循環通路を経て第１の移送手段の方へ戻されて現像
装置内を循環するか、トナー補給装置のトナー補給口を
第１の移送手段の第２の循環通路側又は仕切板側に設け
たため、補給されたトナーが混合・攪拌されず直接第１
の循環通路、第２の移送手段を経て現像スリーブの方へ
移動することはない、補給されたトナーは第１の移送手
段で十分能の現像剤と混合されて第１の循環通路の方へ
移動する。(Function) The developer is transferred from the first transport means to the second circulation passage through the first circulation path.
The toner is then transferred to the second transfer means, and then returned from the second transfer means to the first transfer means through the second circulation path and circulated within the developing device, or the toner supply port of the toner supply device is Because it is installed on the second circulation path side or on the partition plate side of the first transfer means, the supplied toner is not mixed or stirred and is directly transferred to the first transfer means.
The replenished toner does not move toward the developing sleeve via the second transfer means, but is mixed with a sufficient amount of developer in the first transfer means and then flows toward the first circulation path. Moving.
（実施例）
次に本発明の一実施例を複写機の現像装置を例にとり、
添付図面に従って説明する。(Example) Next, an example of the present invention will be explained by taking a developing device of a copying machine as an example.
This will be explained according to the attached drawings.
第１図は現像装置の現像剤攪拌装置回りの平断面図、第
２図は第１図のＩ−Ｉ矢視図である。第１図中１１．１
２はその左右の両端部が現像装置ｌの平行な本体側壁２
０．２１に枢支されるスクリュータイプの現像剤用の第
１、第２移送手段であり、該第１、第２移送手段１１．
１２は現像剤中の着色顔料であるトナーと、いわゆるキ
ャリアと呼ばれる鉄粉とを混合・攪拌すると共に、これ
等を現像装置ｌ内で移送・循環させるものである。FIG. 1 is a plan sectional view of the area around the developer agitating device of the developing device, and FIG. 2 is a view taken along the line II in FIG. 1. 11.1 in Figure 1
2, its left and right ends are parallel main body side walls 2 of the developing device l.
0.21 for screw-type developer, the first and second transport means 11.
Reference numeral 12 mixes and stirs toner, which is a colored pigment in the developer, and iron powder, which is called a carrier, and transports and circulates them within the developing device 1.
また、第１、第２移送手段１１．１２間には現像装置１
の本体底！！！２２（第２図参照）より突出して設けら
れる仕切板１３が配設され、第１、第２移送手段１１．
１２によりそれぞれ移送される現像剤の相互の混合を防
止している。また仕切板１３の第１図中右端と右側の本
体側壁２０間には、第１移送手段１１により移送される
現像剤を第２移送手段１２側へ移動させる第１循環通路
１５が設けられ、仕切板１３の左端と左側の本体側壁２
１間には、第２移送手段１２により移送される現像剤を
第１移送手段１１側へ移動させる第２循環通路１６が設
けられている。Further, a developing device 1 is provided between the first and second transport means 11 and 12.
The bottom of the body! ! ! 22 (see FIG. 2), a partition plate 13 is disposed to protrude from the first and second transfer means 11.
12 prevents mutual mixing of the developers transported respectively. Further, a first circulation passage 15 is provided between the right end of the partition plate 13 in FIG. The left end of the partition plate 13 and the left main body side wall 2
A second circulation path 16 is provided between the first and second transfer means 1 for moving the developer transferred by the second transfer means 12 to the first transfer means 11 side.
一方、第１移送手段１１の一側には、トナー補給装置１
７が１移送手段１１に沿う如く設けられている。トナー
補給装置１７は本体側壁２０゜２１、本体底壁２２１本
体仕切壁２３や本体後壁２４により構成されるトナー用
ホッパ１７ａと。On the other hand, a toner replenishing device 1 is provided on one side of the first transfer means 11.
7 are provided along one transporting means 11. The toner replenishing device 17 includes a toner hopper 17a constituted by a main body side wall 20° 21, a main body bottom wall 221, a main body partition wall 23, and a main body rear wall 24.
該ホッパ１７ａ内に設けられるトナー移動手段１７ｂと
、前記本体仕切壁２３に設けられるトナー補給口２３ａ
等とからなっており、該トナー補給口・２３ａは第１移
送手段１１の前記第２循環通路１６側及び仕切板１３側
に向く如く開口している。また、第２移送手段１２の一
側には、該第２移送手段１２に沿う如く、その両端部か
装置本体側板２０．２１に指示され、感光トラム２に形
成された静電潜像に第２図で示される如くトナーを供給
して、該静電潜像を顕像化するための現像スリーブ１４
か配設されている。A toner moving means 17b provided in the hopper 17a, and a toner supply port 23a provided in the main body partition wall 23.
The toner supply port 23a is opened toward the second circulation passage 16 side and the partition plate 13 side of the first transfer means 11. Further, on one side of the second transfer means 12, along the second transfer means 12, both ends thereof are directed to the side plate 20.21 of the main body of the apparatus, and the electrostatic latent image formed on the photosensitive tram 2 is As shown in FIG. 2, a developing sleeve 14 supplies toner to visualize the electrostatic latent image.
or has been set up.
而して、トナー補給袋５！１７のトナー補給口２３ａか
ら第１移送手段１１の第２循環通路１６側及び仕切板１
３側に供給されたトナーは第１図中矢印の方向に回転す
る第１移送手段１１により他の現像剤と混合・攪拌され
つつ、図中右方の第１循環通路１５まで移送される。一
方第２移送手段１２は第１図中矢印方向に回転している
ため。Thus, from the toner supply port 23a of the toner supply bag 5!17 to the second circulation passage 16 side of the first transfer means 11 and the partition plate 1
The toner supplied to the third side is mixed and stirred with other developer by the first transfer means 11 rotating in the direction of the arrow in FIG. 1, and is transferred to the first circulation path 15 on the right side in the figure. On the other hand, the second transfer means 12 is rotating in the direction of the arrow in FIG.
前記トナーが補給された現像剤を図中左方向の第２循環
通路１６まで混合・攪拌しつつ移送し、この間現像スリ
ーブ１４にトナーのみ供給する。そしてトナー濃度が減
少し第２循環通路１６に達した現像剤は、この第２循環
通路１６を通り、前記トナー補給装置１７から補給され
る新たなトナーと混合・攪拌されつつ再度第１移送手段
１１により右方に移送され、以降この動作が繰り返され
る。The developer replenished with the toner is mixed and stirred and transferred to the second circulation path 16 in the left direction in the figure, and during this time only the toner is supplied to the developing sleeve 14. Then, the developer whose toner concentration has decreased and has reached the second circulation path 16 passes through the second circulation path 16 and is mixed and agitated with new toner supplied from the toner replenishment device 17 and returned to the first transport means. 11 to the right, and this operation is repeated thereafter.
以上の如く本発明によれば、トナー補給装置１７のトナ
ー補給０２３ａを第１移送手段１１の第２循環通路１６
や仕切板１３側に設けたため、供給されたトナーが他の
現像剤と混合・攪拌されることなく、直接第１循環通路
１５を通って第２移送手段１２から現像スリーブ１４に
供給されることはない。従って部分的にトナー濃度の濃
い現像剤か現像スリーブ１４に供給され、該現像スリー
ブ１４による現像に現像むらか生しることはない、また
第３図て示される従来技術の現像装置のトナー補給口１
０６ａの位置をわずかに変更するのみで目的を達成でき
るため、装置も大型化しない。As described above, according to the present invention, the toner supply 023a of the toner supply device 17 is transferred to the second circulation passage 16 of the first transfer means 11.
Since the toner is provided on the partition plate 13 side, the supplied toner is directly supplied from the second transfer means 12 to the developing sleeve 14 through the first circulation passage 15 without being mixed or stirred with other developer. There isn't. Therefore, the developer having a high toner concentration is partially supplied to the developing sleeve 14, and uneven development does not occur in the development by the developing sleeve 14, and toner replenishment of the prior art developing device shown in FIG. Mouth 1
Since the purpose can be achieved by only slightly changing the position of 06a, the device does not need to be enlarged.
更に、本発明てはトナー補給装置１７のホッパ１７ａを
現像袋ｆｉｔの本体壁を利用して構成してい−るため、
装置の小型化コンパクト化及び材料の節約が図れると共
に、トナー補給装置１７のトナー補給口２３ａを現像ス
リーブ１４の現像領域幅Ａ内に配設しているため、第４
図て示される従来技術の如き構成か不要となって、装置
を更に小型化、コンパクト化できる。Furthermore, in the present invention, since the hopper 17a of the toner replenishing device 17 is constructed using the main body wall of the developer bag fit,
In addition to making the device smaller and more compact and saving on materials, the toner replenishing port 23a of the toner replenishing device 17 is disposed within the developing area width A of the developing sleeve 14, so the fourth
The configuration of the prior art shown in the figure is no longer necessary, and the device can be further miniaturized and compact.
尚、トナー補給装置１７のホッパ１７ａは現像装置１本
体側板２０．２１等を利用して構成されているが、本体
側板２０．２１等と別部材で構成してもよいのは勿論で
ある。Although the hopper 17a of the toner replenishing device 17 is constructed using the side plates 20.21 of the main body of the developing device 1, it is of course possible to construct the hopper 17a with a separate member from the side plates 20.21 of the main body.
（発明の効果）
以上の説明から明らかな如く本発明によれば、トナー補
給装置のトナー補給口を現像剤の循環移送方向に対して
適切な位置、即ち、第１移送手段に対して、第１の循環
通路側以外の第２の循環通路側又は仕切板側に設けたた
め、補給されたトナーはキャリアと十分混合・攪拌され
て現像スリーブへ供給されることになる。このため現像
スリーブに部分的にトナー濃度の濃い現像剤が供給され
ることはなく、従９て現像スリーブによる現像に現像む
らが発生することもない。(Effects of the Invention) As is clear from the above description, according to the present invention, the toner replenishing port of the toner replenishing device is positioned at an appropriate position with respect to the developer circulation direction, that is, at the first position relative to the first transport means. Since it is provided on the side of the second circulation path other than the side of the first circulation path or on the partition plate side, the replenished toner is sufficiently mixed and stirred with the carrier and supplied to the developing sleeve. Therefore, the developer having a high toner concentration is not supplied to the developing sleeve partially, and uneven development does not occur in the developing sleeve.
また本発明では従来のものに比べ、トナー補給口の位置
を一部変更したのみなので、装置も大型化せず、コンパ
クトなものとなる。Further, in the present invention, compared to the conventional one, only a part of the position of the toner replenishment port is changed, so that the apparatus does not become large in size and becomes compact.
第１図は現像装置の現像剤攪拌装置回りの平断面図、第
２図は第１図のＩ−Ｉ矢視図、第３図は従来技術を示す
現像装置の現像剤攪拌装置回りの平断面図、第４図は他
の従来技術を示す現像装置の現像剤攪拌装置回りの平断
面図である。
１−・・現像装置、１１−・・第１の移送手段、１２・
・・第２の移送手段、１３・・・仕切板、１４・・・現
像スリーブ、１５・・・第１の循環通路、１６・・・第
２の循環通路、１７・・・トナー補給装置、１７ａ・・
・ホッパ、２０．２１・・・装置本体側壁、２２・・・
装置本体底壁、２３−・・装置本体仕切壁、２４・・・
装置本体後壁（２０乃至２４・・・装置本体壁）。
特許 出願人 キャノン株式会社Fig. 1 is a plan cross-sectional view of the area around the developer agitating device of the developing device, Fig. 2 is a view taken along the line I-I in Fig. 1, and Fig. 3 is a plan view of the area around the developer agitating device of the developing device showing the prior art. 4 is a plan sectional view of the area around a developer stirring device of a developing device showing another conventional technique. 1-.Developing device, 11-.First transport means, 12.
...Second transport means, 13...Partition plate, 14...Developing sleeve, 15...First circulation passage, 16...Second circulation passage, 17...Toner supply device, 17a...
・Hopper, 20.21... Device main body side wall, 22...
Device main body bottom wall, 23--Device main body partition wall, 24...
Device main body rear wall (20 to 24... device main body wall). Patent Applicant: Canon Co., Ltd.
Claims (3)
に配設され、互いに軸方向異方向にトナーとキャリアと
からなる現像剤を攪拌、移送する第１、第２の移送手段
と、該移送手段間に移送中の現像剤の混合防止のために
設けられ、その両端部側に、トナー補給装置側に配設さ
れる第１の移送手段から現像スリーブ側に配設される第
２の移送手段側へ現像剤を移動させる第１の循環通路と
第２の移送手段側から第１の移送手段側へ現像剤を移動
させる第２の循環通路とが配設された仕切板とを有する
現像装置において、前記トナー補給装置のトナー補給口
を前記第１の移送手段の第１の循環通路側以外の第２の
循環通路側又は仕切板側に設けたことを特徴とする現像
装置。(1) first and second transport means that are disposed axially parallel to each other between the toner replenishing device and the developing sleeve, and that stir and transport developer consisting of toner and carrier in mutually different axial directions; A first transfer means is provided between the transfer means to prevent the developer from being mixed during transfer, and a second transfer means is provided on both end sides of the transfer means, from the first transfer means disposed on the toner replenishing device side to the second transfer means disposed on the developing sleeve side. The partition plate includes a first circulation path for moving the developer to the transfer means side and a second circulation path for moving the developer from the second transfer means side to the first transfer means side. A developing device characterized in that a toner replenishing port of the toner replenishing device is provided on a second circulation path side or a partition plate side of the first transfer means other than the first circulation path side.
ブの現像領域幅内に配設されていることを特徴とする請
求項１記載の現像装置。(2) The developing device according to claim 1, wherein the toner replenishing port of the toner replenishing device is disposed within the width of the developing area of the developing sleeve.
トナー収容ホッパー部と、前記仕切板、前記第１、第２
の移送手段や現像スリーブを収納する装置本体壁とが一
体的に構成されいてることを特徴とする請求項１乃至２
記載の現像装置。(3) a toner storage hopper section in which a toner replenishment port of the toner replenishment device is formed;
Claims 1 and 2 are characterized in that the conveying means and the wall of the main body of the apparatus that houses the developing sleeve are integrally constructed.
The developing device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63215056A JPH0264584A (en) | 1988-08-31 | 1988-08-31 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63215056A JPH0264584A (en) | 1988-08-31 | 1988-08-31 | Developing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264584A true JPH0264584A (en) | 1990-03-05 |
Family
ID=16666029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63215056A Pending JPH0264584A (en) | 1988-08-31 | 1988-08-31 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7426360B2 (en) | 2004-08-06 | 2008-09-16 | Canon Kabushiki Kaisha | Developing apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6324266A (en) * | 1986-07-16 | 1988-02-01 | Minolta Camera Co Ltd | Developing device |
| JPS6357668B2 (en) * | 1983-10-27 | 1988-11-11 | Yamatake Haneueru Kk |
-
1988
- 1988-08-31 JP JP63215056A patent/JPH0264584A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6357668B2 (en) * | 1983-10-27 | 1988-11-11 | Yamatake Haneueru Kk | |
| JPS6324266A (en) * | 1986-07-16 | 1988-02-01 | Minolta Camera Co Ltd | Developing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7426360B2 (en) | 2004-08-06 | 2008-09-16 | Canon Kabushiki Kaisha | Developing apparatus |
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