JPH0342446Y2 - - Google Patents
Info
- Publication number
- JPH0342446Y2 JPH0342446Y2 JP1983147853U JP14785383U JPH0342446Y2 JP H0342446 Y2 JPH0342446 Y2 JP H0342446Y2 JP 1983147853 U JP1983147853 U JP 1983147853U JP 14785383 U JP14785383 U JP 14785383U JP H0342446 Y2 JPH0342446 Y2 JP H0342446Y2
- Authority
- JP
- Japan
- Prior art keywords
- developer
- replenishment
- hole
- toner
- shutter
- 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
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 108091008695 photoreceptors Proteins 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は電子写真複写機、電子写真技術を用い
たプリンタ等の画像形成装置における現像器ユニ
ツト、特にシヤツタ部材により現像剤の流出を制
御する現像器ユニツトに関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a developing device unit in an image forming apparatus such as an electrophotographic copying machine or a printer using electrophotographic technology, and in particular to a developing unit in which the outflow of developer is controlled by a shutter member. This relates to the vessel unit.
電子写真複写機に於て、現像工程では、感光体
ドラム上に形成される静電潜像を可視像化された
トナー像とする。この現像を乾式二成分方式によ
つて行つた場合には現像剤中のトナーのみが次第
に消費されるようになり、画像濃度を一定に保つ
ためにはトナーを補給し現像剤中のトナー濃度を
一定に保つ必要がある。ここではトナー自身の重
量により自動的にトナー補給を行なう方法につい
て第１図に基づき説明する。
In an electrophotographic copying machine, in a developing step, an electrostatic latent image formed on a photoreceptor drum is converted into a visible toner image. When this development is carried out using a dry two-component method, only the toner in the developer is gradually consumed, and in order to keep the image density constant, toner must be replenished to reduce the toner concentration in the developer. It needs to be kept constant. Here, a method for automatically replenishing toner based on the weight of the toner itself will be explained with reference to FIG.
先ず、第１図ａに示すように現像装置（図示せ
ず）内の現像剤１の上面レベルｘが補給用のトナ
ー３を貯留するトナーホツパー２の開口部より上
側にある時には、現像剤１中へのトナー３の補給
は行われない。次に現像剤１中のトナーが現像に
より消費されて第１図ｂに示すように、トナーホ
ツパー２の開口部と現像剤１の上面レベルｘとの
間に間隙ｌが生じると、この間隙ｌを埋めるよう
にトナー３が自重で落下してきて第１図ｃに示す
ような状態となり、再び現像剤１の上面レベルｘ
がトナーホツパー２の開口部と同じ高さまで復帰
してトナー３の補給は停止する。つまり、現像剤
１中のトナーが消費された分だけトナーホツパー
２からトナー３が自重で落下してきてトナー補給
が行われる。 First, as shown in FIG. 1a, when the upper surface level x of the developer 1 in the developing device (not shown) is above the opening of the toner hopper 2 that stores the toner 3 for replenishment, the inside of the developer 1 is Toner 3 is not replenished to. Next, when the toner in the developer 1 is consumed by development and a gap l is created between the opening of the toner hopper 2 and the upper surface level x of the developer 1, as shown in FIG. The toner 3 falls under its own weight as if to fill the area, resulting in the state shown in Figure 1c, and the upper surface level of the developer 1 becomes x again.
returns to the same height as the opening of the toner hopper 2, and supply of toner 3 is stopped. That is, as much toner as the toner in the developer 1 is consumed, the toner 3 falls from the toner hopper 2 under its own weight, and toner replenishment is performed.
前述のようにトナーの自重により自動的に落下
させてトナー補給を行なう方法は機構が極めて簡
単で安価な方法ではあるが、トナーホツパー２の
開口部を適宜開閉するためのシヤツタ手段がない
ために、例えば機械の運搬、輸送等において振動
が発生したり、機械が傾いたりした場合にはトナ
ーホツパー２内のトナー３と現像剤１とが混じり
合つてしまい、この結果現像剤１中のトナー濃度
が大きく変化してしまうという不都合が生じる。
さらに同様の理由から現像部単位でのユニツト化
あるいは感光体ドラム周辺部をも含めたカートリ
ツジ化などが不可能である。
As mentioned above, the method of replenishing toner by automatically dropping the toner due to its own weight is an extremely simple and inexpensive method; however, since there is no shutter means for opening and closing the opening of the toner hopper 2 as appropriate, For example, if vibrations occur during transport or transportation of the machine, or if the machine is tilted, the toner 3 in the toner hopper 2 and the developer 1 will mix, and as a result, the toner concentration in the developer 1 will increase. The problem is that it changes.
Further, for the same reason, it is impossible to unitize each developing section or to form a cartridge including the peripheral area of the photoreceptor drum.
本発明は上記従来の欠点に鑑み、簡単な機構で
開閉するシヤツタ部材を設け、補給用の現像剤の
流出を制御するようにした現像器ユニツトを提供
することを目的とする。
SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a developing unit that is provided with a shutter member that opens and closes with a simple mechanism to control the outflow of replenishing developer.
そして本考案は上記目的を達成するために、現
像剤を収容する現像ケースと、該現像ケース内へ
補給すべき補給用現像剤を収容するとともに下方
に複数の現像剤補給穴を有し、該現像剤補給穴が
前記現像ケース内の現像剤の上面レベルと略同一
位置となるよう前記現像ケースと一体化された現
像剤補給装置と、前記現像剤補給穴と一致可能な
補給穴を有しスライド可能に前記現像剤補給穴に
重ねて設けられたシヤツタ部材と、該シヤツタ部
材を前記補給穴が前記現像剤補給穴と一致しない
方向に付勢する付勢部材とを備え、画像形成装置
に着脱自在にユニツト化された現像器ユニツトで
あつて、前記シヤツタ部材は前記画像形成装置の
一部と係合可能な係合部と、前記スライド動作に
応じて前記補給用現像剤を解してブロツキングを
防止するための突起とを有し、前記現像器ユニツ
トが前記画像形成装置に装着されて画像形成が行
われる際には、前記係合部が前記画像形成装置の
一部と係合することにより前記付勢部材の付勢力
に亢して前記補給穴が前記現像剤補給穴と一致す
る位置へ移動され、前記現像器ユニツトを前記画
像形成装置から取り外した際には、前記付勢部材
の付勢力によつて前記補給穴が前記現像剤補給穴
と一致しない位置に移動されることを特徴とす
る。
In order to achieve the above object, the present invention includes a developing case for storing a developer, a replenishing developer to be replenished into the developing case, and a plurality of developer replenishing holes below. a developer replenishment device integrated with the developer case so that the developer replenishment hole is located at approximately the same level as the upper surface level of the developer in the developer case; and a replenishment hole that can be aligned with the developer replenishment hole. An image forming apparatus comprising: a shutter member slidably provided overlapping the developer replenishment hole; and a biasing member biasing the shutter member in a direction in which the replenishment hole does not coincide with the developer replenishment hole. The shutter member is a removably unitized developer unit, and the shutter member includes an engaging portion that can engage with a part of the image forming apparatus, and a developer that releases the replenishing developer in accordance with the sliding operation. and a protrusion for preventing blocking, and when the developing device unit is attached to the image forming apparatus and image formation is performed, the engaging portion engages with a part of the image forming apparatus. As a result, when the biasing force of the biasing member is increased and the replenishment hole is moved to a position that coincides with the developer supply hole, and the developer unit is removed from the image forming apparatus, the biasing member The replenishment hole is moved to a position that does not coincide with the developer replenishment hole by the urging force of.
以下、本考案の一実施例を図面によつて詳述す
る。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第２図および第３図は本考案を適用した現像装
置の構成図である。 FIGS. 2 and 3 are block diagrams of a developing device to which the present invention is applied.
第２図において、感光体ドラム５は矢印方向へ
回転可能に設けられており、この感光体ドラム５
に近接して現像装置４が設けられている。現像装
置４は現像ケース６内に現像スリーブ７及び撹拌
板９を有しており、現像スリーブ７はその表面に
マグネツトロール８の磁気的吸引力により現像剤
１１を担持し、感光体ドラム５表面を摺擦するよ
うに設けられている。現像スリーブ７上部には現
像剤１１の飛散を防止するためのカバー１０が設
けられ、カバー１０の先端は現像スリーブ７上に
担持される現像剤１１の層厚を規制するためのド
クタ１０ａを構成している。また、現像装置４に
は補給用のトナー１４を貯留し、下方に開口部を
有する現像剤補給装置１３が設けられており、こ
の現像剤補給装置１３の開口部は現像剤１１の上
面レベル付近に位置するように設けられ、さらに
該開口部にはトナー１４の流出を制御するための
シヤツタ１２が設けられている。第２図及び第３
図において、シヤツタ１２は開放状態となつてい
る。 In FIG. 2, the photosensitive drum 5 is rotatably provided in the direction of the arrow.
A developing device 4 is provided adjacent to. The developing device 4 has a developing sleeve 7 and a stirring plate 9 in a developing case 6. The developing sleeve 7 supports a developer 11 on its surface by the magnetic attraction force of a magnet roll 8, and a photosensitive drum 5. It is provided to rub the surface. A cover 10 is provided above the developing sleeve 7 to prevent the developer 11 from scattering, and the tip of the cover 10 constitutes a doctor 10a for regulating the layer thickness of the developer 11 carried on the developing sleeve 7. are doing. Further, the developing device 4 is provided with a developer replenishing device 13 that stores toner 14 for replenishment and has an opening at the bottom. Further, a shutter 12 for controlling the outflow of the toner 14 is provided at the opening. Figures 2 and 3
In the figure, the shutter 12 is in an open state.
以上のような構成における現像装置の動作につ
いて説明する。 The operation of the developing device configured as above will be explained.
マグネツトロール８の磁気的吸引力によつて現
像スリーブ７の表面に形成された現像剤１１の磁
気ブラシ層はドクタ１０ａで層厚が規制された
後、感光体ドラム５表面を摺擦することにより、
感光体ドラム５上に図示しない像露光手段で形成
された静電潜像をトナーで可視像化して現像を行
なう。第２図においては現像剤１１の上面レベル
は現像剤補給装置１３の下方の開口部より上に位
置しているので現像剤補給装置１３からのトナー
１４の補給は行われない。ところが、現像剤１１
中のトナーは現像により消費されるので、現像剤
１１の上面レベルは次第に低下し、第３図に示す
ように現像剤補給装置１３の開口部と現像剤１１
の上面レベルとの間に間隙ｌが生じると、この間
隙ｌを埋めるように現像剤補給装置１３からトナ
ー１４が自重で落下してきて、丁度消費された分
だけのトナー１４が補給される。 The magnetic brush layer of the developer 11 formed on the surface of the developing sleeve 7 by the magnetic attraction force of the magnet roll 8 is regulated in layer thickness by the doctor 10a, and then rubbed on the surface of the photoreceptor drum 5. According to
An electrostatic latent image formed on the photosensitive drum 5 by an image exposure means (not shown) is visualized with toner and developed. In FIG. 2, since the upper surface level of the developer 11 is located above the lower opening of the developer replenishing device 13, toner 14 is not replenished from the developer replenishing device 13. However, developer 11
As the toner inside is consumed during development, the level of the upper surface of the developer 11 gradually decreases, and as shown in FIG.
When a gap l is created between the toner and the upper surface level, toner 14 falls under its own weight from the developer replenishing device 13 so as to fill this gap l, and just the amount of toner 14 that has been consumed is replenished.
以上のような動作により現像が行われると共に
現像剤１１中のトナー濃度が一定に保たれるよう
になつている。 Through the above-described operations, development is performed and the toner concentration in the developer 11 is kept constant.
前述の様に第２図及び第３図に示す状態、すな
わち現像装置４が本体に装着された状態ではシヤ
ツタ１２は開放状態でトナー補給が行われる構成
となつているが、次に第４図乃至第６図を参照し
ながらシヤツタ１２の開閉動作についてさらに詳
細に説明する。第４図及び第５図はシヤツタ１２
の開閉動作を説明するための現像装置４の要部側
断面図、第６図はシヤツタ１２の平面図である。 As mentioned above, in the state shown in FIGS. 2 and 3, that is, in the state in which the developing device 4 is attached to the main body, the shutter 12 is configured to be in an open state and toner is replenished. The opening and closing operations of the shutter 12 will be explained in more detail with reference to FIGS. Figures 4 and 5 show the shutter 12.
FIG. 6 is a side cross-sectional view of a main part of the developing device 4 for explaining the opening and closing operations thereof, and FIG. 6 is a plan view of the shutter 12.
シヤツタ１２は現像剤補給装置１３の下方の開
口部に位置し、さらに現像剤補給装置１３と現像
ケース６とに摺動自在に保持されており、複数の
スリツト穴１２ａと切り起こし部１２ｂを有して
いる。第４図はシヤツタ１２が閉じた状態を示す
もので、現像装置４を本体から取り外した場合に
対応している。この状態ではシヤツタ１２はその
軸１２ｃを圧縮バネ１５により矢印T1方向に付
勢されており、シヤツタ１２のスリツト穴１２ａ
と現像剤補給装置１３の開口部である複数のスリ
ツト穴１３ａとはその相対的位置がずれてシヤツ
タ１２は閉じた状態であり、トナー１４が落下補
給されることはない。 The shutter 12 is located at the lower opening of the developer replenishing device 13, is slidably held by the developer replenishing device 13 and the developing case 6, and has a plurality of slit holes 12a and a cut-and-raised portion 12b. are doing. FIG. 4 shows the shutter 12 in a closed state, which corresponds to the case where the developing device 4 is removed from the main body. In this state, the shaft 12c of the shutter 12 is biased in the direction of arrow T1 by the compression spring 15, and the slit hole 12a of the shutter 12
The relative positions of the shutter 12 and the plurality of slit holes 13a, which are the openings of the developer replenishing device 13, are shifted, and the shutter 12 is in a closed state, so that the toner 14 is not replenished by falling.
次に第５図はシヤツタ１２が開いた状態を示す
もので、現像装置４を本体に装着した場合に対応
している。すなわち、現像装置４がユニツト或い
はカートリツジとして機械本体に差し込まれて装
着されると、シヤツタ１２の突出部１２ｄが機械
本体フレーム１６の突き当たり、圧縮バネ１５の
力に抗してシヤツタ１２は矢印T2方向に移動す
る。この時シヤツタ１２のスリツト穴１２ａと現
像剤補給装置１３のスリツト穴１３ａとはその相
対的位置が合致してシヤツタ１２は開いた状態と
なり、トナー１４の落下補給が可能となる。 Next, FIG. 5 shows a state in which the shutter 12 is open, which corresponds to the case where the developing device 4 is attached to the main body. That is, when the developing device 4 is inserted into the machine body as a unit or a cartridge and installed, the protrusion 12d of the shutter 12 abuts against the machine body frame 16, and the shutter 12 moves in the direction of the arrow T2 against the force of the compression spring 15. move in the direction. At this time, the relative positions of the slit hole 12a of the shutter 12 and the slit hole 13a of the developer replenishing device 13 match, so that the shutter 12 is in an open state and the toner 14 can be replenished by falling.
つまり、シヤツタ１２は現像装置４が機械本体
内に装着された時だけ開放し、機械本体から取り
外された時には瞬時に閉じる構成となつている。
又機械本体がジヤム処理等のために上下に分割可
能になつているものではシヤツタを機械の分割と
連動させ、機械が分割されている時にはシヤツタ
を閉じておくこともできる。尚、シヤツタ１２の
切り起こし部１２ｂは機械本体からの現像装置４
の着脱に応じてシヤツタ１２が左右に移動する動
きを利用して現像剤補給装置１３の開口部に発生
しがちなトナーのブロツキング現象を防止するた
めに設けられている。 That is, the shutter 12 is configured to open only when the developing device 4 is installed in the machine body, and close instantly when it is removed from the machine body.
In addition, in cases where the machine body can be divided into upper and lower parts for purposes such as jam processing, the shutter can be linked to the division of the machine, and the shutter can be kept closed when the machine is divided. Note that the cut and raised portion 12b of the shutter 12 is connected to the developing device 4 from the main body of the machine.
This is provided to prevent the toner blocking phenomenon that tends to occur at the opening of the developer replenishing device 13 by utilizing the movement of the shutter 12 from side to side in response to the attachment and detachment of the developer replenishing device 13.
本実施例は現像装置４の着脱に応じてシヤツタ
１２の開閉動作を行わせる構成であるが、このシ
ヤツタ１２の開閉動作をソレノイド等の駆動手段
により行ない、現像剤濃度を検知し、この検知信
号に応じて駆動手段によりシヤツタ１２の開閉を
行なつてトナー補給を行なう構成とすることも出
来、現像剤濃度検知によるトナー補給システムに
おいても本考案を適用できる。尚現像剤濃度を検
知しソレノイド等の駆動手段でシヤツタを移動さ
せて開口より現像剤を落下させるものでは現像剤
が流動性の良いものであると２枚のシヤツタの開
口部が重なつた際に多量の現像剤が落下してしま
う可能性がある。この様な場合には第７図に示す
様にシヤツタを３枚構成とし移動シヤツタ１７を
図示しないソレノイド等により作動部材１８を介
して移動させることにより３枚のシヤツタの開口
部が重なることなく適量の補給を行なうことがで
きる。 In this embodiment, the shutter 12 is opened and closed in accordance with the attachment and detachment of the developing device 4. The opening and closing operations of the shutter 12 are performed by a driving means such as a solenoid, and the developer concentration is detected, and the detection signal is The shutter 12 may be opened and closed by a drive means to replenish toner depending on the situation, and the present invention can also be applied to a toner replenishment system based on developer concentration detection. In addition, when the developer concentration is detected and the shutter is moved using a driving means such as a solenoid to drop the developer from the opening, if the developer has good fluidity, when the openings of two shutters overlap, There is a possibility that a large amount of developer may fall. In such a case, as shown in FIG. 7, the shutter is composed of three shutters, and the movable shutter 17 is moved via the actuating member 18 by a solenoid (not shown), so that the openings of the three shutters do not overlap and can be moved by an appropriate amount. can be resupplied.
以上詳細に説明したように、本考案は簡単な機
構で開閉するシヤツタ部材を設けたので、補給用
の現像剤の流出を制御することができると共に現
像装置のユニツト化或いは周辺の像形成手段を含
めたカートリツジ化が可能である。
As explained in detail above, the present invention is provided with a shutter member that opens and closes with a simple mechanism, so it is possible to control the outflow of replenishing developer, and also to make the developing device into a unit or to use the peripheral image forming means. It is possible to create a cartridge including
第１図ａ，ｂ，ｃは従来のトナー補給方法を示
すトナー補給部の構成図、第２図及び第３図は本
考案を適用した現像装置の構成図、第４図及び第
５図はシヤツタの開閉動作を説明するための現像
装置の要部側断面図、第６図はシヤツタの平面
図、第７図は他の実施例の要部断面図である。
１，１１……現像剤、２……トナーホツパー、
３，１４……トナー、４……現像装置、５……感
光体ドラム、６……現像ケース、７……現像スリ
ーブ、８……マグネツトロール、９……撹拌板、
１０……カバー、１２……シヤツタ、１２ａ……
スリツト穴、１２ｂ……切り起こし部、１２ｃ…
…軸、１２ｄ……突出部、１３……現像剤補給装
置、１５……圧縮バネ、１６……本体フレーム、
１９ａ，１９ｂ……固定シヤツタ。
Figures 1a, b, and c are block diagrams of a toner replenishing section showing a conventional toner replenishment method, Figures 2 and 3 are block diagrams of a developing device to which the present invention is applied, and Figures 4 and 5 are FIG. 6 is a side sectional view of the main part of the developing device for explaining the opening and closing operation of the shutter, FIG. 6 is a plan view of the shutter, and FIG. 7 is a sectional view of the main part of another embodiment. 1, 11...Developer, 2...Toner hopper,
3, 14...toner, 4...developing device, 5...photosensitive drum, 6...developing case, 7...developing sleeve, 8...magnetic roll, 9...stirring plate,
10...Cover, 12...Shutter, 12a...
Slit hole, 12b... cut and raised part, 12c...
... shaft, 12d ... protrusion, 13 ... developer supply device, 15 ... compression spring, 16 ... main body frame,
19a, 19b...Fixed shutters.
Claims (1)
内へ補給すべき補給用現像剤を収容するとともに
下方に複数の現像剤補給穴を有し、該現像剤補給
穴が前記現像ケース内の現像剤の上面レベルと略
同一位置となるよう前記現像ケースと一体化され
た現像剤補給装置と、前記現像剤補給穴と一致可
能な補給穴を有しスライド可能に前記現像剤補給
穴に重ねて設けられたシヤツタ部材と、該シヤツ
タ部材を前記補給穴が前記現像剤補給穴と一致し
ない方向に付勢する付勢部材とを備え、画像形成
装置に着脱自在にユニツト化された現像器ユニツ
トであつて、前記シヤツタ部材は前記画像形成装
置の一部と係合可能な係合部と、前記スライド動
作に応じて前記補給用現像剤を解してブロツキン
グを防止するための突起とを有し、前記現像器ユ
ニツトが前記画像形成装置に装着されて画像形成
が行われる際には、前記係合部が前記画像形成装
置の一部と係合することにより前記付勢部材の付
勢力に亢して前記補給穴が前記現像剤補給穴と一
致する位置へ移動され、前記現像器ユニツトを前
記画像形成装置から取り外した際には、前記付勢
部材の付勢力によつて前記補給穴が前記現像剤補
給穴と一致しない位置に移動されることを特徴と
する現像器ユニツト。 A developing case that stores a developer, and a developer that stores a replenishment developer to be replenished into the developing case and has a plurality of developer replenishment holes at the bottom, and the developer replenishment hole is configured to accommodate the developer in the developer case. A developer replenishment device integrated with the developer case so as to be at approximately the same position as the upper surface level, and a replenishment hole that can be aligned with the developer replenishment hole, and slidably overlapped with the developer replenishment hole. A developing device unit that is detachably attached to an image forming apparatus, and includes a shutter member that is attached to the developer supply hole, and a biasing member that biases the shutter member in a direction in which the replenishment hole does not coincide with the developer replenishment hole. The shutter member has an engaging portion that can engage with a part of the image forming device, and a protrusion that prevents blocking through the replenishing developer in accordance with the sliding operation, When the developing unit is attached to the image forming apparatus and image formation is performed, the engaging portion engages with a part of the image forming apparatus, thereby increasing the urging force of the urging member. When the replenishment hole is moved to a position that coincides with the developer replenishment hole and the developer unit is removed from the image forming apparatus, the replenishment hole is moved to the position where the developer replenishment hole is aligned with the developer replenishment hole by the biasing force of the biasing member. A developing unit characterized in that it is moved to a position that does not coincide with the agent supply hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14785383U JPS6056061U (en) | 1983-09-24 | 1983-09-24 | developer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14785383U JPS6056061U (en) | 1983-09-24 | 1983-09-24 | developer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6056061U JPS6056061U (en) | 1985-04-19 |
| JPH0342446Y2 true JPH0342446Y2 (en) | 1991-09-05 |
Family
ID=30328675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14785383U Granted JPS6056061U (en) | 1983-09-24 | 1983-09-24 | developer unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056061U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514285Y2 (en) * | 1985-07-18 | 1993-04-16 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56123570A (en) * | 1980-03-04 | 1981-09-28 | Matsushita Electric Ind Co Ltd | Toner supplying device for electronic photography copy machine |
| JPS5711366A (en) * | 1980-06-24 | 1982-01-21 | Minolta Camera Co Ltd | Electrostatic latent image developing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567964Y2 (en) * | 1977-01-18 | 1981-02-21 |
-
1983
- 1983-09-24 JP JP14785383U patent/JPS6056061U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56123570A (en) * | 1980-03-04 | 1981-09-28 | Matsushita Electric Ind Co Ltd | Toner supplying device for electronic photography copy machine |
| JPS5711366A (en) * | 1980-06-24 | 1982-01-21 | Minolta Camera Co Ltd | Electrostatic latent image developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6056061U (en) | 1985-04-19 |
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