JPS6394266A - Toner cartridge - Google Patents

Toner cartridge

Info

Publication number
JPS6394266A
JPS6394266A JP61240031A JP24003186A JPS6394266A JP S6394266 A JPS6394266 A JP S6394266A JP 61240031 A JP61240031 A JP 61240031A JP 24003186 A JP24003186 A JP 24003186A JP S6394266 A JPS6394266 A JP S6394266A
Authority
JP
Japan
Prior art keywords
seal
toner
scraping member
cartridge body
cartridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61240031A
Other languages
Japanese (ja)
Inventor
Takeshi Sakaki
榊 猛史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP61240031A priority Critical patent/JPS6394266A/en
Publication of JPS6394266A publication Critical patent/JPS6394266A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0881Sealing of developer cartridges
    • G03G15/0882Sealing of developer cartridges by a peelable sealing film
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865Arrangements for supplying new developer
    • G03G15/0875Arrangements for supplying new developer cartridges having a box like shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To positively scrape toner stuck to a seal by a scraping member and to maintain a clean environment by fitting the scraping member to the front side of a cartridge body and drawing out the seal with at least two flexural parts. CONSTITUTION:The seal 15 consisting of a film sheet is stuck to the bottom of the cartridge body 2 so as to cover an aperture part 3, the seal 15 stuck from the front side is folded on the depth side and its leading end part 15a is positioned under a handle part 8, held between a scraping member 16 formed by a molt plane or the like and the handle part and held along the lower face of the handle part in a flexural state. Namely, a passage for drawing out the seal 15 through the two flexural parts X1, X7 is formed by the lower surface of the handle part and the scraping member 16. Under the status that the seal 15 is drawn in an arrow (a) direction, frictional contact force between the seal 15 and the edge part 16b of the scraping member is increased at the bent part X2 and the toner can be efficiently scraped.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、複写機などの作像装置にトナーを供給するト
ナーカートリッジに関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a toner cartridge that supplies toner to an image forming apparatus such as a copying machine.

(従来の技術) 従来、前記トナーカートリッジの一態様として、トナー
を収容するカートリッジ本体の底部に形成した開口部に
シールを貼着するとともに、奥側でこれを折り返して前
記貼着されている部分に重ね合わせ、前記開口部を作像
装置のトナー補給口に位置させた状態で、前記シール折
り返し部の先端を引っ張り、貼着されているシールを剥
ぎ取りつつトナーを補給口に落下供給するようにしたト
ナーカートリッジが提供されている。
(Prior Art) Conventionally, as one aspect of the toner cartridge, a sticker is affixed to an opening formed at the bottom of a cartridge body that accommodates toner, and the affixed portion is folded back on the back side. and with the opening positioned at the toner replenishment port of the image forming device, pull the tip of the folded back part of the seal so that the toner falls and is supplied to the replenishment port while peeling off the attached sticker. A toner cartridge is provided.

(発明が解決しようとする問題点) しかしながら、このものでは、シールを剥ぎ取る際、シ
ールに付着したトナーが外部にこぼれ出し、衣服や手が
汚れたり、又、飛散したトナーが機内に入り、感光体な
どに付着して複写画像にカブリや斑点を生じて画質不良
を招来するという問題点を有していた。
(Problems to be Solved by the Invention) However, with this device, when the sticker is peeled off, the toner adhering to the sticker spills out, staining clothes and hands, and the scattered toner gets into the machine. This has the problem that it adheres to photoreceptors and the like, causing fog and spots on copied images, leading to poor image quality.

(問題点を解決するための手段) 本発明は前記問題点を解決するためになされたもので、
前記カートリッジ本体手前側に掻取部材を取り付け、前
記シールが少なくとも2ケ所以上の屈曲部をもって引き
出されるようにしたものである。
(Means for solving the problems) The present invention has been made to solve the problems mentioned above.
A scraping member is attached to the front side of the cartridge main body, and the seal is pulled out with at least two bent portions.

(実施例) 以下、本発明を添付図面に従って説明する。(Example) The present invention will be described below with reference to the accompanying drawings.

第1.2図は、本発明にかかるトナーカートリッジ(1
)を示し、箱形のカートリッジ本体(2)は底部に開口
部(3)を有し、その周囲には外方に突出するフランジ
(4)が形成しである。
Figure 1.2 shows a toner cartridge (1) according to the present invention.
), the box-shaped cartridge body (2) has an opening (3) at the bottom, around which is formed an outwardly projecting flange (4).

なお、フランジ(4)の長手方向−側部には、第2.3
図に示すように、カートリッジ本体(2)に沿って一部
を切除してストッパ(5)が形成してあり、前記切除さ
れた部分には、上方に立ち上がり、さらに外方に屈曲し
たガイド部(6)が形成しである。
In addition, on the longitudinal direction side part of the flange (4), No. 2.3 is provided.
As shown in the figure, a stopper (5) is formed by cutting out a part along the cartridge body (2), and the cut out part has a guide section that rises upward and is further bent outward. (6) is the formation.

フランジ(4)の奥側(図中右側)には固定枠(7)が
形成してあり、他方、手前側(図中左側)は外側に伸張
されて取手部(8)としである。
A fixed frame (7) is formed on the back side (right side in the figure) of the flange (4), while the front side (left side in the figure) extends outward to serve as a handle (8).

取手部(8)は付は根の部分でいったん斜め上方に屈曲
し、さらに水平に屈曲して段部゛(9)が形成され、先
端部はいま一度斜め下方に向かって屈曲し、さらに水平
に屈曲している。
The handle part (8) is bent diagonally upward at the base, and then bent horizontally to form a stepped part (9), and the tip is bent diagonally downward once again, and then bent horizontally again. It is bent to.

また、取手部(8)の先端部には、前記フランジ(4)
に設けたガイド部(6)と平行な補助ガイド部(lO)
が−側部に形成され、これと反対側にはストッパ(11
)が形成しである。
Furthermore, the flange (4) is attached to the tip of the handle (8).
Auxiliary guide part (lO) parallel to the guide part (6) provided in
is formed on the negative side, and a stopper (11
) is formed.

カートリッジ本体(2)の底面にはフィルムシートから
なるシール(15)が開口部(3)を塞ぐように貼着し
てあり、手前側から貼着されたシール(15)は奥側で
折り返され、その先端部(15a)は取手部(8)の下
面に位置し、モルトブレーンなどで形成された掻取部材
(16)と取手部(8)との間に挟持され、取手部(8
)の下面に沿って屈曲状態で保持されている。
A sticker (15) made of a film sheet is affixed to the bottom of the cartridge body (2) so as to close the opening (3), and the sticker (15) affixed from the front side is folded back at the back side. , its tip (15a) is located on the lower surface of the handle (8), and is held between the handle (8) and a scraping member (16) made of maltbrain or the like.
) is held in a bent position along the lower surface of the

即ち、取手部(8)の下面と掻取部材(16)とで、シ
ール(15)が2箇所の屈曲部(Xυ、(X、)を介し
て引き出される通路(S)が形成されている。
That is, the lower surface of the handle portion (8) and the scraping member (16) form a passage (S) through which the seal (15) is pulled out via the two bent portions (Xυ, (X,). .

なお、前記掻取部材(16)は、第4図に示すように、
シール(15)を介して段部(9)の下面にあてかわれ
、両側の折返部(16a)、(16a)を段部(9)の
上面に糊付けして固定されている。ただし、掻取部材(
16)自身に多少剛性のあるものを使用すれば、糊付け
しなくてもよい。
In addition, as shown in FIG. 4, the scraping member (16)
It is applied to the lower surface of the stepped portion (9) via the seal (15), and the folded portions (16a) on both sides are glued and fixed to the upper surface of the stepped portion (9). However, the scraping member (
16) If you use something that is somewhat rigid, there is no need to glue it.

以上の構成からなるトナーカートリッジ(1)は、カー
トリッジ本体(2)の奥側に形成したトナー供給口(1
2)からトナーを装填してキャップ(13)で封をする
The toner cartridge (1) having the above configuration has a toner supply port (1) formed on the back side of the cartridge body (2).
Load toner from step 2) and seal with a cap (13).

次に、トナーカートリッジ(1)の底部形状を示した第
3図に示すように、複写機などのトナー補給部(20)
に設けたトナー補給口(20aX第1図参照)に、シー
ル(15)を貼着した開口部(3)を位置させる。この
とき、同時に、固定枠(7)の中にストッパ(2I)を
位置させるとともに、ガイド部(6)及び補助ガイド(
10)をガイドレール(22)の上に位置させる。
Next, as shown in FIG. 3 showing the bottom shape of the toner cartridge (1), a toner replenishing part (20) of a copying machine, etc.
The opening (3) with the sticker (15) pasted thereon is positioned in the toner replenishment port (20aX, see FIG. 1) provided in the toner supply port (20aX, see FIG. 1). At this time, at the same time, the stopper (2I) is positioned in the fixed frame (7), and the guide part (6) and the auxiliary guide (
10) is positioned on the guide rail (22).

そして、この状態で、掻取部材(16)の下面が、トナ
ー補給部(20)の手前側に設けた支持部材(24)の
上に位置し、トナーカートリッジ(1)自身の重さによ
って、掻取部材(16)はシール(15)に圧接する。
In this state, the lower surface of the scraping member (16) is positioned on the support member (24) provided on the front side of the toner supply section (20), and due to the weight of the toner cartridge (1) itself, The scraping member (16) presses against the seal (15).

次に、トナーカートリッジ(1)を手前側に若干移動さ
せ、固定枠(7)をストッパ(21)に係合するととも
に、フランジ(4)のストッパ(5)及び取手部(8)
のストッパ(11)を、ガイドレール(22)、押え板
(23)の下面にそれぞれ係合してトナーカートリッジ
(1)をトナー補給部(20)に固定する。
Next, move the toner cartridge (1) slightly toward the front side, engage the fixing frame (7) with the stopper (21), and at the same time engage the stopper (5) and handle portion (8) of the flange (4).
The stoppers (11) are engaged with the lower surfaces of the guide rail (22) and the presser plate (23), respectively, to fix the toner cartridge (1) to the toner supply section (20).

続いて、トナーを補給するには、シール(15)の先端
を矢印(a)方向に引っ張り、奥側から順次手前側に向
かってシール(15)を剥ぎ取って、開口部(3)を徐
々に開口すると、それにつれてカートリッジ本体(2)
内のトナーがトナー補給口(20a)に落下供給される
Next, to replenish toner, pull the tip of the seal (15) in the direction of arrow (a), peel off the seal (15) from the back to the front, and gradually open the opening (3). When opened, the cartridge body (2)
The toner inside is dropped and supplied to the toner supply port (20a).

開口部(3)のほぼ半分が開口されると、シール(15
)のトナーと接していた部分が掻取部材(16)に達し
、シール(15)に付着しているトナーは、掻取部材(
16)のエツジ部(16b)で掻き落とされ、トナー補
給口(20a)内に落下回収されるとともに、掻取部材
(16)の上面に掻き取られ、シール(15)がクリー
ニングされる。
When approximately half of the opening (3) is opened, the seal (15)
) reaches the scraping member (16), and the toner adhering to the seal (15) is removed by the scraping member (
The toner toner is scraped off by the edge portion (16b) of the toner supply port (20a) and collected by falling into the toner supply port (20a), and is also scraped off by the upper surface of the scraping member (16), thereby cleaning the seal (15).

なお、シール(15)は、まずカートリッジ本体(2)
の底面に沿って移動し、その後、段部(9)に至ると、
段部(9)の下面に沿って屈曲部(Xl)で1変態曲し
、2度目の屈曲部(X、)でエツジ部(16b)の掻取
作用を受けるわけであるが、シール(!5)が矢印(a
)方向に引き出されている状態において、屈曲部(X、
)では、シール(15)自身にエツジ部(16b)に向
かう力が働いているため、エツジ部(+6b)に対して
強く圧接する。このため、屈曲部(X、)におけるシー
ル(15)と掻取部材エツジ部(16b)との摩擦接触
力が大きく、トナーは効率良く掻き落とされる。
Note that the seal (15) is first attached to the cartridge body (2).
moving along the bottom surface of and then reaching the stepped part (9),
Along the lower surface of the stepped portion (9), it bends once at the bent portion (Xl) and receives the scraping action of the edge portion (16b) at the second bent portion (X,), but the seal (!) 5) is the arrow (a
) direction, the bent portion (X,
), the seal (15) itself has a force acting on it toward the edge portion (16b), so it comes into strong pressure contact with the edge portion (+6b). Therefore, the frictional contact force between the seal (15) and the scraping member edge portion (16b) at the bent portion (X,) is large, and the toner is efficiently scraped off.

即ち、単に平面上を移動しつつあるシール(15)に掻
取部材(16)を接触させたものであれば、掻取部材(
16)の掻き取り効率は、その圧接力によって決まるの
に対し、このものでは、シール(15)を引き出すこと
により、屈曲部(X2)を積極的に掻取部材(16)の
エツジ部(16b)に圧接するようにしているため、ト
ナーの掻取効率が著しく向上する。
That is, if the scraping member (16) is simply brought into contact with the seal (15) that is moving on a plane, the scraping member (
16), the scraping efficiency is determined by the pressure contact force, whereas in this one, by pulling out the seal (15), the bent part (X2) is actively scraped at the edge part (16b) of the scraping member (16). ), the toner scraping efficiency is significantly improved.

以上のように、トナー供給動作に従って、シール(15
)に付着したトナーがトナー補給口(20a)に落下回
収されるとともに、掻取部材(16)に掻き取られるた
め、トナーが外部に漏れ出て衣服や身体を汚したり、複
写機等の内部にトナーが飛散して機内を汚染し、複写画
像などにカブリなどが生じることもない。
As described above, according to the toner supply operation, the seal (15
) is collected by the toner replenishing port (20a) and is also scraped off by the scraping member (16), causing the toner to leak outside and stain clothes or the body, or inside the copying machine, etc. This prevents toner from scattering and contaminating the inside of the machine and causing fog on copied images.

シール(15)か完全に剥ぎ取られると、内部のトナー
は全てトナー補給口(20a)に補給される。
When the seal (15) is completely peeled off, all the toner inside is replenished into the toner supply port (20a).

なお、前記実施例では、カートリッジ本体(2)の取手
部(8)は、先端部分を斜め下方に屈曲するものとした
が、これに限らず、第5図に示すように、一度斜め上方
に屈曲してから再度水平に屈曲しただけのものでもよい
In the above embodiment, the tip of the handle (8) of the cartridge body (2) is bent diagonally downward; however, the present invention is not limited to this, and as shown in FIG. It may be simply bent and then horizontally bent again.

また、前記実施例では、掻取部材(16)と段部(9)
の下面とでシール(15)を挟持するものとしたが、こ
れに限らず、第6図に示すように、段部(9)の下面に
、シール(15)の引き出し方向と直行する複数の突条
(9a)を設け、該突条(9a)と掻取部材(16)と
でシール(15)を挟持するようにしてもよい。
Furthermore, in the embodiment, the scraping member (16) and the stepped portion (9)
However, as shown in FIG. A protrusion (9a) may be provided, and the seal (15) may be held between the protrusion (9a) and the scraping member (16).

このようにすれば、トナーカートリッジ(1)をトナー
補給部(20)に装着した状態で、シール(15)と突
条(9a)との接触部において、シール(15)は何度
も屈曲しなから掻取部材(16)に強く圧接し、エツジ
部(+6b)で掻き取られなかったトナーもこの部分で
完全に除去することができ、トナーの除去効率が向上す
る。
In this way, the seal (15) will not be bent many times at the contact area between the seal (15) and the protrusion (9a) when the toner cartridge (1) is installed in the toner supply section (20). Because of this, it comes into strong pressure contact with the scraping member (16), and the toner that was not scraped off at the edge portion (+6b) can be completely removed at this portion, improving the toner removal efficiency.

さらに、前記実施例では、シール(15)は取手部(8
)の下面と掻取部材(16)との間を通過させるものと
したが、これに限らず、第7図に示すように、掻取部材
(16)にスリット状の通路(S)を形成し、該通路(
S)にシール(15)を通すことによって、4個所の屈
曲部(x 、)、(x 2)、(X 3)、(X 、)
を介して引き出すようにしてちよい。
Further, in the above embodiment, the seal (15) has a handle portion (8).
) and the scraping member (16), but the invention is not limited to this, and as shown in FIG. 7, a slit-shaped passage (S) is formed in the scraping member (16) and the passage (
By passing the seal (15) through S), the four bent portions (x , ), (x 2), (X 3), (X , )
You can try to pull it out through the .

さらにまた、前記実施例ではトナーカートリッジ(1)
は箱形のものとしたが、これに限らず、円筒形のもので
あってもよい。
Furthermore, in the above embodiment, the toner cartridge (1)
Although the shape is box-shaped, the shape is not limited to this, and the shape may be cylindrical.

(発明の効果) 以上の説明で明らかなように、本発明にかかるトナーカ
ートリッジは、カートリッジ本体手前側に掻取部材を取
り付け、前記シールが少なくとも2ケ所以上の屈曲部を
もって引き出されるようにしている。
(Effects of the Invention) As is clear from the above description, in the toner cartridge according to the present invention, a scraping member is attached to the front side of the cartridge main body, and the seal is pulled out with at least two bent portions. .

したがって、シールを剥ぎ取る際、シールに付着したト
ナーは、掻取部材にて積極的に掻き取られ、外部に漏れ
出てトナーカートリッジを交換する者の衣服や身体を汚
したり、機内汚染を生じたりすることがなく、清潔な環
境を維持することができる。
Therefore, when the seal is removed, the toner adhering to the seal is actively scraped off by the scraping member, leaking out to the outside and staining the clothes and body of the person replacing the toner cartridge, or contaminating the inside of the machine. It is possible to maintain a clean environment without causing any damage.

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

第1図は本発明にかかるトナーカートリッジの長手方向
断面図、第2図はトナーカートリッジを下方から見た斜
視図、第3図はトナーカートリッジの上部を取り除いた
底部形状を示す斜視図、第4図は掻取部材の装着状況を
示す斜視図、第5図。 第6図はその他の実施例を示す斜視図、第7図は掻取部
材のその他の実施例を示す断面図である。 ■・・トナーカートリッジ、2・・・カートリッジ本体
、3・・・開口部、4・・・フランジ部、8・・・取手
部、9・・・段部、15・・・シール、15a・・・シ
ール先端部、16・・・掻取部材、20・・・トナー補
給部、20a・・・トナー補給口、X、、X、・・・屈
曲部S・・通路。 特 許 出 願 人 ミノルタカメラ株式会社代 理 
人 弁理士 前出 葆 ほか2名第7図 1勧 ^45  入1
FIG. 1 is a longitudinal sectional view of a toner cartridge according to the present invention, FIG. 2 is a perspective view of the toner cartridge seen from below, FIG. 3 is a perspective view showing the bottom shape of the toner cartridge with the top removed, and FIG. FIG. 5 is a perspective view showing how the scraping member is attached. FIG. 6 is a perspective view showing another embodiment, and FIG. 7 is a sectional view showing another embodiment of the scraping member. ■... Toner cartridge, 2... Cartridge body, 3... Opening, 4... Flange, 8... Handle, 9... Step, 15... Seal, 15a... - Seal tip, 16... scraping member, 20... toner replenishment part, 20a... toner replenishment port, X, , X,... bend S... passage. Patent applicant Minolta Camera Co., Ltd. Agent
Person Patent attorney: Mr. Yu and 2 others Figure 7 1 recommendation ^45 Enter 1

Claims (1)

【特許請求の範囲】[Claims] (1)カートリッジ本体の底部に設けた開口部をシール
で塞ぐとともに、該シールを奥側で折り返してカートリ
ッジ本体の手前側まで延長し、作像装置のトナー補給部
に装着した状態で、前記シールの折り返し部先端を持っ
てこれを引き出し、前記開口部を開口しつつカートリッ
ジ本体に収容したトナーを作像装置のトナー補給口に落
下供給するトナーカートリッジにおいて、前記カートリ
ッジ本体手前側に、カートリッジ本体とともに前記シー
ルを挟持し、前記シールが少なくとも2箇所以上の屈曲
部をもって引き出される通路を形成する掻取部材を設け
たことを特徴とするトナーカートリッジ。
(1) Close the opening provided at the bottom of the cartridge body with a seal, fold back the seal at the back side and extend it to the front side of the cartridge body, and with the seal attached to the toner replenishing section of the image forming device. In a toner cartridge for supplying the toner stored in the cartridge body by holding the tip of the folded part and pulling it out while opening the opening, the toner stored in the cartridge body falls into the toner replenishment port of the image forming device. A toner cartridge characterized in that a scraping member is provided that holds the seal and forms a passage through which the seal is pulled out with at least two bent portions.
JP61240031A 1986-10-08 1986-10-08 Toner cartridge Pending JPS6394266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61240031A JPS6394266A (en) 1986-10-08 1986-10-08 Toner cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61240031A JPS6394266A (en) 1986-10-08 1986-10-08 Toner cartridge

Publications (1)

Publication Number Publication Date
JPS6394266A true JPS6394266A (en) 1988-04-25

Family

ID=17053436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61240031A Pending JPS6394266A (en) 1986-10-08 1986-10-08 Toner cartridge

Country Status (1)

Country Link
JP (1) JPS6394266A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390253U (en) * 1989-12-28 1991-09-13
US5194900A (en) * 1990-10-22 1993-03-16 Sharp Kabushiki Kaisha Developer cartridge having easily removable sealing material
EP0583019A2 (en) * 1989-05-31 1994-02-16 Mita Industrial Co. Ltd. Toner cartridge
EP2428847A3 (en) * 2010-09-10 2017-01-25 Samsung Electronics Co., Ltd. Developing cartridge and image forming apparatus employing the same
US20200096904A1 (en) * 2018-09-26 2020-03-26 Fuji Xerox Co., Ltd. Developing device with sealing unit, process cartridge using developing device, and image forming apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583019A2 (en) * 1989-05-31 1994-02-16 Mita Industrial Co. Ltd. Toner cartridge
EP0583019A3 (en) * 1989-05-31 1994-04-13 Mita Industrial Co. Ltd. Toner cartridge
JPH0390253U (en) * 1989-12-28 1991-09-13
US5194900A (en) * 1990-10-22 1993-03-16 Sharp Kabushiki Kaisha Developer cartridge having easily removable sealing material
EP2428847A3 (en) * 2010-09-10 2017-01-25 Samsung Electronics Co., Ltd. Developing cartridge and image forming apparatus employing the same
US20200096904A1 (en) * 2018-09-26 2020-03-26 Fuji Xerox Co., Ltd. Developing device with sealing unit, process cartridge using developing device, and image forming apparatus
US10866536B2 (en) * 2018-09-26 2020-12-15 Fuji Xerox Co., Ltd. Developing device with sealing unit, process cartridge using developing device, and image forming apparatus

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