JPH08211817A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPH08211817A
JPH08211817A JP7037776A JP3777695A JPH08211817A JP H08211817 A JPH08211817 A JP H08211817A JP 7037776 A JP7037776 A JP 7037776A JP 3777695 A JP3777695 A JP 3777695A JP H08211817 A JPH08211817 A JP H08211817A
Authority
JP
Japan
Prior art keywords
cartridge
charging
image carrier
shaft
image forming
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
JP7037776A
Other languages
Japanese (ja)
Inventor
Akira Yoshida
田 晃 吉
Koji Goto
藤 浩 二 後
Yosuke Morikawa
川 陽 介 森
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7037776A priority Critical patent/JPH08211817A/en
Publication of JPH08211817A publication Critical patent/JPH08211817A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To provide high quality images and to increase speeds by providing an elastic member at least either between the flange shaft of an image carrier end portion and a bearing supporting this or between the shaft of a charging member and a bearing supporting this. CONSTITUTION: The bearing 5 of a flange shaft 4 for rotary-driving an image carrier 1, the bearing 7 of a shaft 6 made of an electrically conductive material for loading a charging roller 2 and a contact portion 8 with the frame body of a cartridge provided with the frame body for supporting the image carrier 1 and the charging roller 2 and a cleaner 3 are constructed by elastic materials. Thus, vibrations produced when an AC voltage is impressed as a charging bias via the shaft 6 and noises due to the vibrations are reduced as many as possible. Because of reduced vibrations and noises, enlargement of the driving sections and other members due to deterioration in image quality and the increased weight of the image carrier caused by charging differences because of reduction in the frequency of the charging bias is eliminated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の目的】[Object of the invention]

【産業上の利用分野】この発明は、静電複写機、同プリ
ンタなどの静電転写プロセスを利用する画像形成装置に
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus using an electrostatic transfer process such as an electrostatic copying machine and a printer.

【0002】[0002]

【従来技術と解決すべき課題】上記のような周知の画像
形成装置は、導電性円筒体表面に光導電層を形成した像
担持体表面の該光導電層を帯電手段によって帯電させる
工程を包含している。
2. Description of the Related Art The known image forming apparatus as described above includes a step of charging a photoconductive layer on the surface of an image carrier having a photoconductive layer formed on the surface of a conductive cylindrical body by a charging means. are doing.

【0003】帯電手段としては、従来からコロナ放電器
がよく利用されていたが、近来、帯電ローラ、帯電ブレ
ードのような、像担持体に直接接触するものが、印加電
圧が低くてすむ、オゾンの発生が少ないなどの利点のた
めに次第に多用されるようになって来ていることはよく
知られている通りである。
Conventionally, a corona discharger has been often used as a charging means, but recently, a means such as a charging roller or a charging blade which comes into direct contact with an image bearing member requires a low applied voltage, and ozone. As is well known, it is becoming more and more popular due to advantages such as low occurrence of

【0004】この種の接触タイプの帯電手段では、像担
持体表面光導電層の帯電を均一ならしめるために、帯電
バイアスとして交流電圧を印加している。このため、バ
イアス印加時に帯電部材と像担持体とが振動して相互に
叩きあうことによる騒音が発生することを免れない。
In this type of contact-type charging means, an AC voltage is applied as a charging bias in order to evenly charge the photoconductive layer on the surface of the image bearing member. For this reason, it is inevitable that the charging member and the image carrier vibrate at the time of applying the bias, and noise is generated by hitting each other.

【0005】このような問題を回避するべく、従来、帯
電バイアスの周波数を低減する方向で対処してきた。併
しながら、このような手段では帯電ムラが発生し易く画
像形成装置の高速化に限界があった。また、画像信号が
デジタル信号である場合、例えば、レーザビームプリン
タ等で画質向上のために入力画素を増した場合、周波数
低下による帯電ムラの影響が顕著に現れるという問題が
ある。
In order to avoid such a problem, hitherto, measures have been taken to reduce the frequency of the charging bias. At the same time, however, such means tend to cause uneven charging, and there is a limit to speeding up the image forming apparatus. Further, when the image signal is a digital signal, for example, when the number of input pixels is increased to improve the image quality in a laser beam printer or the like, there is a problem that the influence of charging unevenness due to the frequency decrease becomes remarkable.

【0006】さらに、騒音を回避すべく、通常中空円筒
状の像担持体内部に剛体を封入して重量を増して振動音
を軽減するような提案もなされている。
Further, in order to avoid noise, it has also been proposed that a rigid body is usually enclosed inside a hollow cylindrical image carrier to increase its weight and reduce vibration noise.

【0007】併しながら、このような像担持体に充填物
を入れることは、重量増による駆動系の大型化、充填物
のコスト、生産性の低下によるコストアップが生じ、さ
らに像担持体本体材料,例えばアルミニューム、を単一
成分として処理できなくなるためにリサイクル等後処理
が困難になるなどの問題がある。
At the same time, however, the filling of the image carrier with such an image carrier causes an increase in the weight of the driving system, an increase in the cost of the compound, and a decrease in the productivity. There is a problem that post-treatment such as recycling becomes difficult because the material such as aluminum cannot be treated as a single component.

【0008】本発明はこのような事態に対処すべくなさ
れたものであって、帯電時に発生する騒音を有効に防止
できるような像担持体、これを用いた高画質、高速化を
可能とするような画像形成装置を提供することを目的と
するものである。
The present invention has been made to cope with such a situation, and enables an image carrier capable of effectively preventing noise generated during charging, and high image quality and high speed using the image carrier. It is an object of the present invention to provide such an image forming apparatus.

【0009】[0009]

【発明の構成】Configuration of the Invention

【課題を解決する技術手段、その作用】上記の目的を達
成するため、本発明は、像担持体と、これに当接配置さ
れた接触型の帯電部材とを具備し、これらをカートリッ
ジ外枠で覆った画像形成装置用のカートリッジにおい
て、前記像担持体端部フランジ軸とこれを軸支する軸受
との間及び前記帯電部材の軸とこれを軸支する軸受との
間の少なくとも一方に弾性材を配設してなる画像形成装
置用カートリッジ(1)、または、像担持体と、これに
当接配置された接触型の帯電部材と、クリーニング部と
を具備し、これらをカートリッジ外枠で覆った画像形成
装置用のカートリッジにおいて、クリーニング部の容器
のカートリッジ外枠と、像担持体及び帯電部材とを支持
するカートリッジ枠との接触部に弾性材を配設してなる
画像形成装置用カートリッジ(2)、または、上記
(1)または(2)のものにおいて、帯電部材が帯電ロ
ーラである画像形成装置用カートリッジ(3)、また
は、上記(1)または(2)のものにおいて、帯電部材
が帯電ブレードである画像形成装置用カートリッジ
(4)、または、上記(1)または(2)記載のカート
リッジを具備する画像形成装置(5)である。
In order to achieve the above-mentioned object, the present invention comprises an image carrier and a contact type charging member which is disposed in contact with the image carrier, and these are mounted on a cartridge outer frame. In the cartridge for the image forming apparatus covered by the above, at least one of the image bearing member end flange shaft and the bearing supporting the shaft and the shaft of the charging member and the bearing supporting the shaft are elastic. An image forming apparatus cartridge (1) in which materials are arranged, or an image carrier, a contact-type charging member arranged in contact with the image carrier, and a cleaning unit are provided, and these are provided in a cartridge outer frame. In a covered cartridge for an image forming apparatus, an elastic member is provided at a contact portion between a cartridge outer frame of a container of a cleaning unit and a cartridge frame supporting an image carrier and a charging member. The ridge (2) or the cartridge (3) of the above (1) or (2), wherein the charging member is a charging roller, or the cartridge (3) of the above (1) or (2) An image forming apparatus cartridge (4), the member of which is a charging blade, or an image forming apparatus (5) including the cartridge described in (1) or (2) above.

【0010】このような構成とすることによって、低コ
ストで、帯電バイアス印加によって発生する振動、騒音
による帯電ムラを大巾に低減でき、振動がカートリッジ
乃至は画像形成装置各部に伝播することによる画質劣化
を防止できる。
With such a structure, it is possible to significantly reduce the charge unevenness due to the vibration and noise generated by the application of the charging bias at a low cost, and the vibration propagates to the cartridge or each part of the image forming apparatus to improve the image quality. Deterioration can be prevented.

【0011】[0011]

【実施例の説明】「図1」は本発明の実施例を示す、画
像形成装置に着脱自在のプロセスカートリッジの要部の
概略側断面図であって、紙面に垂直方向に延設された回
転円筒状の像担持体1に帯電ローラ2が当接配置してあ
る。符号3は、クリーニング装置に装着された、残留ト
ナー除去用のクレーニングブレードである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS "FIG. 1" is a schematic side sectional view of an essential part of a process cartridge detachably mountable to an image forming apparatus, showing an embodiment of the present invention. A charging roller 2 is disposed in contact with a cylindrical image carrier 1. Reference numeral 3 is a cleaning blade attached to the cleaning device for removing residual toner.

【0012】また、符号4は像担持体を回転駆動するた
めのフランジ軸で、軸受5に受容されている。符号6は
帯電ローラ2を装着する導電性材料からなる軸で、これ
を介して不図示の電源によって帯電バイアスが印加され
るものとする。符号7は該軸4を軸する軸受である。さ
らに、符号8は像担持体1と帯電ローラ2とを支持する
枠と、クリーニング装置、カートリッジ枠との接触部を
示す。
Further, reference numeral 4 is a flange shaft for rotationally driving the image bearing member, which is received by the bearing 5. Reference numeral 6 designates a shaft made of a conductive material on which the charging roller 2 is mounted, through which a charging bias is applied by a power source (not shown). Reference numeral 7 is a bearing that shafts the shaft 4. Further, reference numeral 8 indicates a contact portion between the frame supporting the image carrier 1 and the charging roller 2, the cleaning device, and the cartridge frame.

【0013】このような装置において、前記軸受5、同
6、枠8は弾性材料で構成してあるものとする。この場
合、軸4と軸受5の間、軸6と軸受7との間には相対回
転が伴い、滑性、耐摩耗性を必要とするので、弾性材料
の表面には金属薄層を形成したり、フッ素樹脂材で構成
するのが好適である。
In such a device, the bearings 5, 6 and the frame 8 are made of an elastic material. In this case, since relative rotation is involved between the shaft 4 and the bearing 5 and between the shaft 6 and the bearing 7, and lubricity and wear resistance are required, a thin metal layer is formed on the surface of the elastic material. Alternatively, it is preferable to use a fluororesin material.

【0014】弾性材としては、防振、防音にも有効であ
ることを勘案してウレタンゴム、クロロプレンゴム、シ
リコンゴム、プロピレンゴム、スチレンーブタジェンゴ
ム、などの合成ゴム等が好適である。
As the elastic material, synthetic rubber such as urethane rubber, chloroprene rubber, silicone rubber, propylene rubber, styrene-butadiene rubber, etc. are preferable in consideration of their effectiveness in vibration and sound proofing.

【0015】像担持体の基体としては、成型性、加工性
などを考慮して金属、とくにアルミニュームが好適であ
る。また、像担持体表面の光導電層としては従来公知の
ものを適宜の手段で成膜形成すればよい。ただ、接触帯
電部材を用いる場合には、有機光導電層が好適である。
As the substrate of the image bearing member, metal, particularly aluminum, is preferable in consideration of moldability and workability. As the photoconductive layer on the surface of the image bearing member, a conventionally known photoconductive layer may be formed into a film by an appropriate means. However, when the contact charging member is used, the organic photoconductive layer is suitable.

【0016】形成された像担持体端部の、駆動伝達用、
軸受用に利用されるフランジの材料としては、成型性、
加工性、摺動性、耐久性などの点からアルミニューム、
ポリカーボネート等が好適に利用できる。
For drive transmission of the formed image carrier end portion,
The material of the flange used for bearings is moldability,
From the viewpoint of workability, slidability, durability, etc., aluminum,
Polycarbonate and the like can be preferably used.

【0017】帯電部材としては、図示の帯電ローラのほ
かに、帯電ブレードをも利用できることは勿論である。
材料としては、ゴムのような弾性材にカーボン、金属粉
などわ分散させて体積抵抗率を適宜に調整したものを用
いることができる。
As a charging member, it is needless to say that a charging blade other than the illustrated charging roller can be used.
As the material, an elastic material such as rubber in which carbon, metal powder, or the like is dispersed to adjust the volume resistivity appropriately can be used.

【0018】帯電ローラに印加されるバイアス電圧は、
直流電圧に交流電圧を重畳してなる、時間とともに周期
的に電圧値が変化する振動電圧が好適で、例えば、特開
昭63ー149668号公報に開示されているように、
直流電圧のみを印加した場合の像担持体の帯電開始電圧
の2倍以上のピーク間電圧のものが好ましい。
The bias voltage applied to the charging roller is
An oscillating voltage in which a voltage value is periodically changed with time, which is formed by superimposing an AC voltage on a DC voltage, is suitable. For example, as disclosed in JP-A-63-149668,
It is preferable that the peak-to-peak voltage is at least twice the charging start voltage of the image carrier when only the DC voltage is applied.

【0019】印加電圧の波形は正弦波に限らず、矩形
波、三角波、鋸歯状波、直流電源をオン・オフすること
によるパルス波など適宜のものを利用できるが、騒音発
生の観点からは高調波を含まない正弦波が好ましい。
The waveform of the applied voltage is not limited to a sine wave, and a rectangular wave, a triangular wave, a sawtooth wave, a pulse wave generated by turning on / off a DC power source, or the like can be used as appropriate. A sinusoid containing no waves is preferred.

【0020】以下本発明の実施例について説明する。Examples of the present invention will be described below.

【0021】[実施例1]像担持体の基体として、直径
30mm、長さ254mm、肉厚0.75mmのアルミ
シリンダを用意し、その表面に以下のような組成の感光
層を形成した。 (1)導電性被覆層 酸化錫及び酸化チタンの粉末を
フェノール樹脂に分散したものを主体とする。膜厚 1
8μ (2)下引層 変性ナイロン及び共重合ナイロ
ンを主体とする。膜厚 1.0μ (3)電荷発生層 長波長域に吸収帯を持つジスア
ゾ顔料をアクリル樹脂に分散したものを主体とする。
膜厚 0.2μ (4)電荷輸送層 ホール搬送性を有するヒドラゾ
ン化合物をポリカーボネート樹脂に溶解したものを主体
とする。 膜厚 25μ このような構成した像担持体を画像形成装置のカートリ
ッジに組み込み、このときの像担持体フランジ部の軸と
カートリッジ側の枠の軸受に、肉厚1.5mmのウレタ
ンゴムを装着した。
Example 1 An aluminum cylinder having a diameter of 30 mm, a length of 254 mm and a wall thickness of 0.75 mm was prepared as a substrate of an image bearing member, and a photosensitive layer having the following composition was formed on the surface thereof. (1) Conductive coating layer The main constituent is a powder of tin oxide and titanium oxide dispersed in a phenol resin. Film thickness 1
8μ (2) Undercoat layer Mainly composed of modified nylon and copolymerized nylon. Thickness 1.0 μ (3) Charge generation layer Mainly composed of a disazo pigment having an absorption band in the long wavelength region dispersed in an acrylic resin.
Film thickness: 0.2 μ (4) Charge transport layer Mainly composed of a hydrazone compound having hole transportability dissolved in a polycarbonate resin. Film thickness: 25 μ The image carrier thus constructed was incorporated into a cartridge of an image forming apparatus, and a urethane rubber having a thickness of 1.5 mm was attached to the shaft of the image carrier flange and the bearing of the frame on the cartridge side at this time. .

【0022】ウレタンゴムと像担持体フランジの接触面
には、フッ素樹脂(ポリ4フッ化ポリエチレン)でコー
ティング処理した。
The contact surface between the urethane rubber and the image bearing flange was coated with a fluororesin (polytetrafluoropolyethylene).

【0023】このカートリッジをレーザビームプリンタ
に装着して帯電ローラに帯電バイアスを印加したときの
帯電音を測定した。この時の装置のプロセススピードは
47mm/sec、直流電圧−650Vに周波数470
Hzの交流電圧を重畳してピーク間電圧2000Vの振
動電圧を印加した。
This cartridge was mounted on a laser beam printer, and the charging noise when a charging bias was applied to the charging roller was measured. At this time, the process speed of the device is 47 mm / sec, the DC voltage is -650 V, and the frequency is 470.
An oscillating voltage with a peak-to-peak voltage of 2000 V was applied by superimposing an AC voltage of Hz.

【0024】音の測定方法は、暗騒音30db(A)の
無響室に上記装置を設置し、像担持体の前面(像担持体
軸線方向に直交する方向)50cmの位置に、騒音計
[NLー02」(リオン株式会社製)を配置した。上記
プリンタは像担持体のみを駆動でき、その他の部位から
の作動音を発生しないように改造してある。
The sound is measured by installing the above device in an anechoic chamber with a background noise of 30 db (A), and placing a sound level meter [50 cm on the front surface of the image carrier (direction orthogonal to the axis of the image carrier)]. NL-02 ”(manufactured by Rion Co., Ltd.) was placed. The printer is modified so that it can drive only the image carrier and does not generate operating noise from other parts.

【0025】このような条件で、像担持体を駆動しない
ときの音圧Xdb(A)と、駆動した場合の音圧Ydb
(A)とを測定して、その差 Δ=Y−Xdb(A)を
帯電によって発生した騒音とした。
Under these conditions, the sound pressure Xdb (A) when the image carrier is not driven and the sound pressure Ydb when the image carrier is driven.
(A) was measured, and the difference Δ = Y−Xdb (A) was taken as the noise generated by charging.

【0026】[実施例2]像担持体フランジ軸の軸受部
材をウレタンゴムとした以外はすべて[実施例1]と同
様として測定を行った。
[Example 2] The measurement was performed in the same manner as in [Example 1] except that the bearing member of the flange shaft of the image bearing member was made of urethane rubber.

【0027】[比較例1] [実施例1]において、像担持体フランジ部に、ウレタ
ンゴム軸受を用いない以外はすべて[実施例1]と同様
の条件で測定をおこなった。
[Comparative Example 1] In [Example 1], the measurement was performed under the same conditions as in [Example 1] except that the urethane rubber bearing was not used in the flange portion of the image carrier.

【0028】[実施例3] [実施例1]と同様の像担持体をカートリッジに組み込
み、帯電ローラの軸とウレタンゴム軸受との接触面に鉄
製のリングを取りつけた。なお、このとき帯電ローラの
軸が装着し易いようにカートリッジの軸受部分を若干研
削した。このようなカートリッジをレーザビームプリン
タに装着して前記の場合と同様にして緒とを測定した。
[Embodiment 3] An image carrier similar to that of [Embodiment 1] was assembled in a cartridge, and an iron ring was attached to the contact surface between the shaft of the charging roller and the urethane rubber bearing. At this time, the bearing portion of the cartridge was slightly ground so that the shaft of the charging roller could be easily mounted. Such a cartridge was mounted on a laser beam printer, and the results were measured in the same manner as above.

【0029】[実施例4] [実施例3]に用いたウレタンゴムをシリコンゴムとし
た以外はすべて同様にして測定を行った。
Example 4 The measurement was performed in the same manner except that the urethane rubber used in [Example 3] was silicon rubber.

【0030】[実施例5] [実施例1]におけると同様の像担持体をカートリッジ
に組み込むとともに、カートリッジの、像担持体と帯電
ローラとを支持する枠体と、クリーニング容器及びカー
トリッジ外枠との接触部位にウレタンゴムを装着した。
このようなカートリッジによって[実施例1]と同様に
して音を測定した。
[Embodiment 5] An image carrier similar to that in [Embodiment 1] is incorporated in a cartridge, and a frame body for supporting the image carrier and the charging roller of the cartridge, a cleaning container and a cartridge outer frame. Urethane rubber was attached to the contact area of.
With such a cartridge, the sound was measured in the same manner as in [Example 1].

【0031】[実施例6] [実施例5]におけるクリーニング容器及びカートリッ
ジ外枠都の接触部位にシリコンゴムを装着した以外は、
これとすべて同様として測定を行った。
[Embodiment 6] Except that silicone rubber is attached to the contact portions of the cleaning container and the outer frame of the cartridge in [Embodiment 5],
The measurement was performed in the same manner as above.

【0032】[実施例7] [実施例1]で用いた像担持体、[実施例3]で用いた
帯電ローラ、[実施例5]で用いたカートリッジを使用
し、これによって[実施例1]と同様の条件で測定を行
った。
[Example 7] The image carrier used in [Example 1], the charging roller used in [Example 3], and the cartridge used in [Example 5] were used. ] Was measured under the same conditions.

【0033】以上の実験結果を「図2」の図表に示し
た。以上の結果を検討すると、音圧の増加分Δが4db
以下であれば、聴感上からも、装置の機能上からも実用
上なんら支障はなく常時安定した音域レベルで画像形成
装置としての作動が遂行できることを確認した。
The results of the above experiments are shown in the chart of FIG. Considering the above results, the increase Δ of the sound pressure is 4 db.
In the following cases, it was confirmed that the operation as an image forming apparatus can be performed at a stable sound range level without any problem in terms of hearing and function of the apparatus in practical use.

【0034】[0034]

【発明の効果】以上説明したように、本発明によれば、
像担持体のフランジ部、帯電部材の接続部位および像担
持体及び(または)帯電部材を支持する枠体とクリーニ
ング部位及びカートリッジの外枠との接触部位に弾性材
料を緩衝材乃至軸受として装着することによって、帯電
バイアスとして交流電圧を印加する際に発生する振動並
びにこれに起因する騒音を可及的に抑制することが可能
となる。
As described above, according to the present invention,
An elastic material is mounted as a cushioning material or a bearing on the flange portion of the image carrier, the connection part of the charging member, the frame part supporting the image carrier and / or the charging member, the cleaning part, and the contact part with the outer frame of the cartridge. As a result, it is possible to suppress as much as possible the vibration that occurs when an AC voltage is applied as the charging bias and the noise that results from this.

【0035】これによって、振動、騒音抑制のために、
帯電バイアスの周波数を低減することによる帯電ムラに
基く画質の劣化、像担持体の重量を増したりすることに
よる駆動部その他の部材の大型化などの必要もなくな
る。また、帯電部位における振動の抑制によって、カー
トリッジ、これを包含する画像形成装置の作動の安定化
が実現でき、良質の画像のを得るのに資するところが大
である。
Thus, in order to suppress vibration and noise,
It is not necessary to reduce the image quality due to uneven charging due to the reduction of the frequency of the charging bias, and to increase the weight of the image carrier to increase the size of the driving unit and other members. In addition, by suppressing the vibration at the charging portion, the operation of the cartridge and the image forming apparatus including the cartridge can be stabilized, which largely contributes to obtaining a high quality image.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の実施例を示す画像形成装置用カート
リッジの要部の概略側断面図
FIG. 1 is a schematic side sectional view of a main part of an image forming apparatus cartridge showing an embodiment of the present invention.

【図2】 本発明の実施例と、比較例装置の実験結果を
示す図表
FIG. 2 is a chart showing the experimental results of the example of the present invention and the comparative example device.

【符号の説明】[Explanation of symbols]

1 像担持体 2 帯電ローラ 3 クリーニングブレード 4 像担持体のフランジ軸 5 軸受 6 帯電ローラの軸 7 軸受 8 枠 1 image carrier 2 charging roller 3 cleaning blade 4 flange shaft of image carrier 5 bearing 6 shaft of charging roller 7 bearing 8 frame

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】像担持体と、これに当接配置された接触型
の帯電部材とを具備し、これらをカートリッジ外枠で覆
った画像形成装置用のカートリッジにおいて、 前記像担持体端部フランジ軸とこれを軸支する軸受との
間及び前記帯電部材の軸とこれを軸支する軸受との間の
少なくとも一方に弾性材を配設してなる画像形成装置用
カートリッジ。
1. A cartridge for an image forming apparatus, comprising: an image carrier; and a contact-type charging member disposed in contact with the image carrier, the cartridge being covered with an outer frame of the cartridge, wherein the image carrier end flange. A cartridge for an image forming apparatus, in which an elastic material is provided at least on one side between a shaft and a bearing supporting the shaft and between a shaft of the charging member and a bearing supporting the shaft.
【請求項2】像担持体と、これに当接配置された接触型
の帯電部材と、クリーニング部とを具備し、これらをカ
ートリッジ外枠で覆った画像形成装置用のカートリッジ
において、 クリーニング部の容器のカートリッジ外枠と、像担持体
及び帯電部材とを支持するカートリッジ枠との接触部に
弾性材を配設してなる画像形成装置用カートリッジ。
2. A cartridge for an image forming apparatus comprising an image carrier, a contact-type charging member disposed in contact with the image carrier, and a cleaning unit, the cartridge being used for an image forming apparatus, the cleaning unit comprising: An image forming apparatus cartridge in which an elastic material is provided at a contact portion between a cartridge outer frame of a container and a cartridge frame that supports an image carrier and a charging member.
【請求項3】帯電部材が帯電ローラである「請求項1」
または「請求項2」のいずれか記載の画像形成装置用カ
ートリッジ。
3. The charging device according to claim 1, wherein the charging member is a charging roller.
Alternatively, the image forming apparatus cartridge according to claim 2.
【請求項4】帯電部材が帯電ブレードである「請求項
1」または「請求項2」記載の画像形成装置用カートリ
ッジ。
4. A cartridge for an image forming apparatus according to claim 1, wherein the charging member is a charging blade.
【請求項5】「請求項1」及び(または)「請求項2」
記載のカートリッジを具備する画像形成装置。
5. "Claim 1" and / or "Claim 2"
An image forming apparatus comprising the cartridge as described.
JP7037776A 1995-02-03 1995-02-03 Image forming device Pending JPH08211817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7037776A JPH08211817A (en) 1995-02-03 1995-02-03 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7037776A JPH08211817A (en) 1995-02-03 1995-02-03 Image forming device

Publications (1)

Publication Number Publication Date
JPH08211817A true JPH08211817A (en) 1996-08-20

Family

ID=12506893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7037776A Pending JPH08211817A (en) 1995-02-03 1995-02-03 Image forming device

Country Status (1)

Country Link
JP (1) JPH08211817A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008275883A (en) * 2007-04-27 2008-11-13 Ricoh Co Ltd Powder storage container, toner conveying device, and image forming apparatus
US7970336B2 (en) 2007-02-05 2011-06-28 Ricoh Company, Limited Powder housing unit and image forming apparatus with powder housing unit
JP2012133402A (en) * 2012-04-12 2012-07-12 Ricoh Co Ltd Powder storage container, toner conveying device, and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7970336B2 (en) 2007-02-05 2011-06-28 Ricoh Company, Limited Powder housing unit and image forming apparatus with powder housing unit
JP2008275883A (en) * 2007-04-27 2008-11-13 Ricoh Co Ltd Powder storage container, toner conveying device, and image forming apparatus
JP2012133402A (en) * 2012-04-12 2012-07-12 Ricoh Co Ltd Powder storage container, toner conveying device, and image forming apparatus

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