JP2515881B2 - Electrophotographic transfer device - Google Patents
Electrophotographic transfer deviceInfo
- Publication number
- JP2515881B2 JP2515881B2 JP1114959A JP11495989A JP2515881B2 JP 2515881 B2 JP2515881 B2 JP 2515881B2 JP 1114959 A JP1114959 A JP 1114959A JP 11495989 A JP11495989 A JP 11495989A JP 2515881 B2 JP2515881 B2 JP 2515881B2
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- toner
- cleaning
- transfer member
- transfer roller
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/16—Transferring device, details
- G03G2215/1647—Cleaning of transfer member
- G03G2215/1652—Cleaning of transfer member of transfer roll
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電子写真の転写装置に係り、特にトナーと逆
極性のバイアス電圧を印加しトナー像を用紙に移行させ
るのに好適な転写装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic transfer device, and more particularly to a transfer device suitable for applying a bias voltage having a polarity opposite to that of a toner to transfer a toner image to a sheet. .
一般に電子写真装置の感光体上に形成されたトナー像
を用紙に転写する場合、用紙の裏面に電圧を印加し電界
を形成することにより転写を行なつている。従来のロー
ラ転写を用いた転写装置は、導電性のローラを用いて用
紙を感光体に押し付けると共にバイアス電圧を印加し感
光体上のトナー像を用紙に転写するものである。普通、
転写ローラは導電性ゴム又は導電性ゴム表面を高抵抗樹
脂で被覆したものが用いられていた。又、転写ローラは
常時又は転写時に用紙及び感光体と接触し表面にトナー
が付着し易いため転写ローラ清掃手段を配置し転写ロー
ラ表面を清掃するようにしていた。なお、この種の装置
として関連するものには実開昭53−129338,特開昭53−7
7533号が挙げられる。Generally, when transferring a toner image formed on a photoconductor of an electrophotographic apparatus onto a sheet, the transfer is performed by applying a voltage to the back surface of the sheet to form an electric field. 2. Description of the Related Art A conventional transfer device using roller transfer is one in which a conductive roller is used to press a sheet against a photoconductor and apply a bias voltage to transfer a toner image on the photoconductor onto the sheet. usually,
As the transfer roller, a conductive rubber or a conductive rubber whose surface is coated with a high resistance resin has been used. Further, since the transfer roller is in contact with the paper and the photoconductor at all times or at the time of transfer and the toner is easily attached to the surface, the transfer roller cleaning means is arranged to clean the surface of the transfer roller. Incidentally, as a device related to this kind, there is a device disclosed in Japanese Utility Model Laid-Open No. 53-129338, Japanese Patent Laid-Open No. 53-7
7533 is mentioned.
しかし、上記従来技術は転写ローラ表面のトナー離形
性と転写ローラの清掃手段との摺擦による静電気の放出
を両立させる点について配慮がされておらず、トナー清
掃効果が不安定になる傾向があつた。すなわち、転写ロ
ーラとして導電性ゴムの単層ローラを用いるものはトナ
ーの離形性が悪く転写ローラに残留したトナーが用紙の
裏汚れを引き起す傾向がある。又、トナーの離形性が良
好な導電性ゴムを絶縁性樹脂で被覆した２層ローラを用
いる場合は、転写ローラ表面と清掃手段との摺擦により
発生した静電気が転写ローラに蓄積され、トナーの転写
ローラへの付着力に影響を与えて清掃性が不安定になる
傾向があつた。However, the above-mentioned prior art does not consider the compatibility of the toner releasability of the transfer roller surface and the discharge of static electricity due to the rubbing with the cleaning means of the transfer roller, and the toner cleaning effect tends to be unstable. Atsuta That is, in the case where a single layer roller made of conductive rubber is used as the transfer roller, the releasability of the toner is poor and the toner remaining on the transfer roller tends to cause backside smearing of the paper. When a two-layer roller in which a conductive rubber having good toner releasability is coated with an insulating resin is used, static electricity generated by the rubbing between the surface of the transfer roller and the cleaning means is accumulated in the transfer roller, There is a tendency that the cleaning ability becomes unstable due to the influence on the adhesion of the toner to the transfer roller.
本発明は、従来技術の欠点を除去し清掃性が安定で小
型な転写装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the drawbacks of the prior art and provide a compact transfer device with stable cleaning properties.
上記目的は、転写部材、例えば転写ローラを導電ゴム
の表面に導電性樹脂層を設けて構成すると共に転写部材
表面から静電気を放出するための電気的経路を設けるこ
とにより、達成される。The above object is achieved by forming a transfer member, for example, a transfer roller, by providing a conductive resin layer on the surface of a conductive rubber and providing an electric path for discharging static electricity from the surface of the transfer member.
本発明の転写装置では、転写部材がトナーとの粘着性
の高い導電性ゴムの表面を導電性樹脂層にて被覆してお
り、転写部材のトナー離形性が良好になる。又、清掃手
段との摺擦により転写部材表面に静電気が発生した場合
でも静電気放出経路を設けており転写部材表面の静電気
の蓄積を防止可能となる。以上により本発明の転写装置
では転写部材の清掃性が向上すると共に、不安定になる
ことがない。従つて、写真装置全体が小型になる。In the transfer device of the present invention, the transfer member covers the surface of the conductive rubber having high adhesion to the toner with the conductive resin layer, and the toner releasability of the transfer member is improved. Further, even when static electricity is generated on the surface of the transfer member due to rubbing against the cleaning means, the static electricity discharge path is provided, and the accumulation of static electricity on the surface of the transfer member can be prevented. As described above, in the transfer device of the present invention, the cleaning property of the transfer member is improved and the transfer member is not unstable. Therefore, the entire photographic device becomes smaller.
以下、本発明の一実施例を第１図により説明する。転
写装置10は、転写ローラ１、清掃手段、転写ローラ接離
機構から構成されている。転写ローラ１は導電ゴムの表
面を導電性樹脂層２で被覆して形成し、転写時には芯金
20及びリード線18を介してバイアス電圧14が印加され
る。放出抵抗19は静電気をアームへ放出する為の経路を
形成するもので、バイアス電源14に内蔵又は外部に設け
られ109〜1011Ωの値に設定されている。尚、非転写時
には切換スイツチ15により図１の矢印のようにリード線
18を非転写導通経路18と接続しても良い。清掃手段は、
導電ブラシ６と回収ロール７、ブレード８、トナー回収
容器９から成り、トナーの移行方向にトナー４と逆極性
の所定値の清掃バイアス電圧12及び回収バイアス電圧13
を印加し回収ロール７に移行したトナー４をブレード８
により掻き取るものである。転写ローラ接離機構は、押
付バネ16、ソレノイド17等から成り転写時に用紙５を感
光体３に接触させたり、用紙ジヤム時に転写ローラ１を
上方に移動させ、感光体から離間させるものである。An embodiment of the present invention will be described below with reference to FIG. The transfer device 10 includes a transfer roller 1, a cleaning unit, and a transfer roller contact / separation mechanism. The transfer roller 1 is formed by covering the surface of conductive rubber with a conductive resin layer 2, and at the time of transfer, a core metal
Bias voltage 14 is applied via 20 and lead wire 18. The discharge resistor 19 forms a path for discharging static electricity to the arm, and is provided inside or outside the bias power supply 14 and set to a value of 10 9 to 10 11 Ω. At the time of non-transfer, the switching switch 15 causes the lead wire as shown by the arrow in FIG.
18 may be connected to the non-transfer conduction path 18. Cleaning means
The cleaning brush comprises a conductive brush 6, a collecting roll 7, a blade 8 and a toner collecting container 9, and has a cleaning bias voltage 12 and a collecting bias voltage 13 of a predetermined value having a polarity opposite to that of the toner 4 in the toner transfer direction.
The toner 4 transferred to the recovery roll 7 by applying
It is scraped off by. The transfer roller contact / separation mechanism is composed of a pressing spring 16, a solenoid 17, etc., and makes the paper 5 contact the photoconductor 3 at the time of transfer, and moves the transfer roller 1 upward at the time of paper jam to separate it from the photoconductor.
このように、転写ローラ１の表面を導電性樹脂により
構成しており転写ロール１に付着したトナー４の離形性
を良好にできるので転写ローラ１の清掃性を良好にでき
る。又、転写ローラ１と導電ブラシ６との摺擦により静
電気が発生した場合でも転写ローラ１の表面層が導電性
を有しており且つ、バイアス電源11には放出抵抗が内蔵
又は外部に配置されており、転写ローラ表面２から転写
ローラ１、芯金20、リード線18、放出抵抗を経由して静
電気をアームに放出することができ静電気の転写ローラ
１の表面の蓄積を防止でき転写ローラ１の清掃性を安定
に維持できる効果がある。In this way, the surface of the transfer roller 1 is made of a conductive resin and the releasability of the toner 4 adhering to the transfer roller 1 can be improved, so that the cleaning property of the transfer roller 1 can be improved. Further, even when static electricity is generated by the rubbing between the transfer roller 1 and the conductive brush 6, the surface layer of the transfer roller 1 has conductivity, and the bias power supply 11 has a built-in discharge resistor or is provided outside. Therefore, static electricity can be discharged from the transfer roller surface 2 to the arm via the transfer roller 1, the cored bar 20, the lead wire 18, and the discharge resistance, and the accumulation of static electricity on the surface of the transfer roller 1 can be prevented. There is an effect that the cleaning property of can be stably maintained.
第２図の例は、本発明の他の実施例である。第１図の
例と異なる点は清掃手段としてブラシ22、タタキ棒23、
マニホールド24、空気配管28、トナーフイルタ26、吸引
ブロワー27から成る機械式の清掃手段を設けたものであ
る。ブラシ22は109〜1010Ωの高抵抗ブラシを用い、タ
タキ棒23を接地しても良い。清掃手段が第１図の例と比
較して大型になる傾向があるが清掃手段に電位差を設定
する必要がないので静電気の影響を第１図の実施例以上
に低減できる利点がある。The example of FIG. 2 is another embodiment of the present invention. The difference from the example of FIG. 1 is that the cleaning means includes a brush 22, a tapping rod 23,
A mechanical cleaning means including a manifold 24, an air pipe 28, a toner filter 26, and a suction blower 27 is provided. As the brush 22, a high resistance brush of 10 9 to 10 10 Ω may be used, and the tataki rod 23 may be grounded. Although the cleaning means tends to be larger than that in the example of FIG. 1, it is not necessary to set a potential difference in the cleaning means, and therefore, there is an advantage that the influence of static electricity can be reduced more than in the embodiment of FIG.
第３図、第４図は本発明の変形例であり、ブラシ毛体
を導電性樹脂にて構成した導電ブラシ29に転写部材の機
能と付着したトナー４を回収ロール７との接触部に搬送
し移行させる機能を兼用させたものである。導電ブラシ
29により用紙５の裏面を帯電させるため、用紙５全体と
転写部材とが接触する転写ローラ１を用いた第１図、第
２図の例と比較して細かいトナー像の転写性が低下する
傾向があるが、転写装置10全体が大巾に小型化できる利
点がある。又、感光体４に磁性粉、例えば鉄粉やフエラ
イト粉で製作させるキヤリアが付着した場合でも転写部
材として転写ローラ１を用いる第１図、第２図の例と比
較して転写部材の損傷を防止できる効果がある。第４図
は第３図の例において回収ロール７内にマグネツト31を
配置したものであり、導電ブラシ29−１に付着したトナ
ーとキヤリアの両方を回収できる利点がさらに付随す
る。尚、第４図において導電性ブラシ29−１は磁性体を
含有することにより、前記磁性体がトナーやキャリア等
の磁気力により磁化されることによって、キヤリアの清
掃効果を高めることも可能である。FIG. 3 and FIG. 4 show a modified example of the present invention, in which the function of the transfer member and the toner 4 adhering to the conductive brush 29 having a brush bristle made of a conductive resin are conveyed to the contact portion with the recovery roll 7. It also has the function of migrating. Conductive brush
Since the back surface of the sheet 5 is charged by 29, the transferability of a fine toner image tends to decrease as compared with the example of FIG. 1 and FIG. 2 in which the transfer roller 1 in which the entire sheet 5 and the transfer member contact each other is used. However, there is an advantage that the entire transfer device 10 can be greatly downsized. Even when a carrier made of magnetic powder such as iron powder or ferrite powder is attached to the photoconductor 4, the transfer roller 1 is used as the transfer member in comparison with the examples of FIGS. 1 and 2 to prevent the transfer member from being damaged. There is an effect that can be prevented. FIG. 4 shows the arrangement of the magnet 31 in the collection roll 7 in the example of FIG. 3, which has the additional advantage that both the toner and the carrier attached to the conductive brush 29-1 can be collected. Incidentally, in FIG. 4, the conductive brush 29-1 contains a magnetic substance, so that the magnetic substance is magnetized by the magnetic force of the toner, the carrier or the like, whereby the effect of cleaning the carrier can be enhanced. .
第５図の例は、本発明を２回転で２色印刷を行う電子
写真装置に応用した例である。転写部材として表面を導
電性樹脂で形成した転写ベルト37及び清掃ユニツト41を
配置すると共に転写ベルト接離手段43、清掃ユニツト接
離手段41を配置し感光体３が２回転で２色印刷を行う電
子写真装置は、感光体１の周囲に配置した帯電器32と黒
印刷用露光33、カラー印刷用露光34を行う露光装置と黒
トナー現象機35とカラートナー現像機36により感光体３
が１回転目に感光体３上に黒トナー像を形成し、用紙５
上に転写し、さらに感光体３が２回転目に感光体３上に
カラートナー像を形成しその間転写ベルトにて保持され
ていた用紙にカラートナー像を転写し、しかる後に定着
器46にて定着し２色印刷を行うものである。転写ベルト
接離手段43は、用紙ジヤム時や感光体３の着脱時等に転
写ベルト37を感光体３から離間させる為に清掃ユニツト
接離手段41は黒トナー像を転写した用紙５が転写ベルト
37部を１周する間、導電ブラシ６にて掻き取られること
を防止する為に設けられている。このような２色印刷電
子写真装置においても本発明は適用でき、転写部材の清
掃性を良好にすると共に清掃性を安定に維持できる。The example of FIG. 5 is an example in which the present invention is applied to an electrophotographic apparatus that performs two-color printing by two rotations. A transfer belt 37 having a surface made of a conductive resin and a cleaning unit 41 are arranged as a transfer member, and a transfer belt contacting / separating means 43 and a cleaning unit contacting / separating means 41 are arranged so that the photoreceptor 3 performs two-color printing by two rotations. The electrophotographic apparatus includes a charger 32 disposed around the photoconductor 1, an exposure device 33 for black printing exposure 33, an exposure device for performing color printing exposure 34, a black toner phenomenon machine 35, and a color toner developing machine 36.
Forms a black toner image on the photoconductor 3 at the first rotation, and the paper 5
Then, the photoconductor 3 forms a color toner image on the photoconductor 3 in the second rotation, and the color toner image is transferred to the paper held by the transfer belt during the second rotation. It is fixed and two-color printing is performed. The transfer belt contacting / separating means 43 is a cleaning unit contacting / separating means 41 for separating the transfer belt 37 from the photoconductor 3 when the paper is jammed or when the photoconductor 3 is attached / detached.
It is provided in order to prevent the conductive brush 6 from scraping off during one round of 37 parts. The present invention can be applied to such a two-color printing electrophotographic apparatus, and the cleaning performance of the transfer member can be improved and the cleaning performance can be stably maintained.
本発明に係る転写装置は、コンピユータシステムの端
末プリンタ装置の転写装置やフアクシミリ、ワークステ
ーシヨン、ワードプロセツサの印刷装置の転写装置や、
用紙を自動的に反転させ用紙の両面に印刷を行う両面印
刷仕様を有するプリンタの転写装置としても用いること
が出来、転写部材の清掃性を良好にすると共に清掃性能
を安定に維持できる効果がある。A transfer device according to the present invention is a transfer device of a terminal printer device of a computer system, a transfer device of a printing device of a facsimile, a workstation, a word processor,
It can also be used as a transfer device of a printer having double-sided printing specifications that automatically reverses the paper and prints on both sides of the paper, and has the effect of improving the cleaning performance of the transfer member and maintaining stable cleaning performance. .
上記したように本発明によれば転写部材のトナー離型
性と静電気の放出を両立できるので転写部材の清掃性を
良好にでき用紙の裏汚れを防止すると共に転写部材の清
掃手段を配置した転写装置の容積を小型にすることがで
きる効果がある。As described above, according to the present invention, the toner releasability of the transfer member and the discharge of static electricity can both be achieved, so that the transfer member can be cleaned well and the backside of the paper can be prevented, and the transfer member cleaning means is arranged. This has the effect of reducing the volume of the device.
第１図は本発明の一実施例を示す図、第２図は本発明他
の実施例を示す図、第３図及び第４図は本発明の変形例
を示す図、第５図は本発明の応用例を示す図である。 １……転写ローラ、２……導電性樹脂層、３……感光
体、４……トナー、５……用紙、６……導電ブラシ、７
……回収ロール、８……ブレード、９……トナー回収容
器、10……転写装置、11……転写バイアス又は転写バイ
アス電源、12……清掃バイアス、13……回収バイアス、
14……非転写導通経路、15……切換スイツチ、16……押
付バネ、17……ソレノイド、18……リード線、19……放
出抵抗、20……転写ローラ芯金、21……転写装置、22…
…ブラシ、23……タタキ棒、24……マニホールド、25…
…吸引空気、26……トナーフイルタ、27……吸引ブロワ
ー、28……空気配管、29……転写ブラシ、30……除電部
材、31……マグネツト、32……帯電器、33……黒画像用
露光、34……カラー画像用露光、35……黒トナー現像
機、36……カラートナー現像機、37……転写ベルト、38
……除電器、39……感光体クリーナー、40……除電ラン
プ、41……清掃ユニツト接離手段、42……清掃ユニツ
ト、43……転写ベルト接離手段、44……給紙ホツパー、
45……給紙ローラ、46……定着器、47……経路切換器。FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing another embodiment of the present invention, FIGS. 3 and 4 are diagrams showing a modification of the present invention, and FIG. 5 is a book. It is a figure which shows the application example of invention. 1 ... Transfer roller, 2 ... Conductive resin layer, 3 ... Photoconductor, 4 ... Toner, 5 ... Paper, 6 ... Conductive brush, 7
...... Collection roll, 8 ...... Blade, 9 ...... Toner collection container, 10 …… Transfer device, 11 …… Transfer bias or transfer bias power supply, 12 …… Cleaning bias, 13 …… Collection bias,
14 ... Non-transfer conduction path, 15 ... Switching switch, 16 ... Pressing spring, 17 ... Solenoid, 18 ... Lead wire, 19 ... Emission resistance, 20 ... Transfer roller core metal, 21 ... Transfer device ,twenty two…
… Brushes, 23 …… tapping sticks, 24 …… manifolds, 25…
… Suction air, 26 …… Toner filter, 27 …… Suction blower, 28 …… Air piping, 29 …… Transfer brush, 30 …… Electrification removing member, 31 …… Magnet, 32 …… Charger, 33 …… Black image Exposure, 34 …… Color image exposure, 35 …… Black toner developing machine, 36 …… Color toner developing machine, 37 …… Transfer belt, 38
…… Static eliminator, 39 …… Photoconductor cleaner, 40 …… Static eliminator lamp, 41 …… Cleaning unit contact / separation means, 42 …… Cleaning unit, 43 …… Transfer belt contact / separation means, 44 …… Paper feed hopper,
45: Paper feed roller, 46: Fixer, 47: Path selector.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 寺門 晃 東京都千代田区大手町２丁目６番２号 日立工機株式会社内 (56)参考文献 特開 昭48−70541（ＪＰ，Ａ) 特開 昭48−69524（ＪＰ，Ａ) 特開 昭54−635（ＪＰ，Ａ) 特開 昭53−97835（ＪＰ，Ａ) 特開 昭58−199365（ＪＰ，Ａ) 特開 昭58−194061（ＪＰ，Ａ) 実開 昭58−81538（ＪＰ，Ｕ) 実開 昭57−178259（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Terakado 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Hitachi Koki Co., Ltd. (56) Reference JP-A-48-70541 (JP, A) JP JP-A-48-69524 (JP, A) JP-A-54-635 (JP, A) JP-A-53-97835 (JP, A) JP-A-58-199365 (JP, A) JP-A-58-194061 (JP , A) Actual development Sho-58-81538 (JP, U) Actual development Sho-57-178259 (JP, U)
Claims (2)
を有する電子写真の転写装置において、 前記転写部材にバイアス電圧を印加するバイアス電源と
並列に高抵抗部材を接続し、前記転写部材の表面に発生
する静電気を放出させる静電気放出経路が前記高抵抗部
材を経由するようにしたことを特徴とする電子写真の転
写装置。1. An electrophotographic transfer apparatus having a transfer member and cleaning means for cleaning the transfer member, wherein a high resistance member is connected in parallel with a bias power source for applying a bias voltage to the transfer member, An electrophotographic transfer device, characterized in that an electrostatic discharge path for discharging static electricity generated on the surface passes through the high resistance member.
ブラシからなり、 前記導電性ブラシに接触し内部にマグネットを内蔵した
回収ロールを備え、前記導電性ブラシから除去したトナ
ーをバイアス電圧を印加した前記回収ロールを介して搬
送することを特徴とする電子写真の転写装置。2. The transfer member according to claim 1, wherein the transfer member is made of a conductive brush containing a magnetic material in a brush bristle body, and the recovery member is provided with a recovery roll that is in contact with the conductive brush and has a magnet inside. An electrophotographic transfer device, characterized in that the toner removed from the conductive brush is conveyed through the recovery roll to which a bias voltage is applied.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114959A JP2515881B2 (en) | 1989-05-10 | 1989-05-10 | Electrophotographic transfer device |
| US07/407,870 US4998143A (en) | 1988-09-20 | 1989-09-15 | Electrophotographic image transfer member, electrophotographic image transfer device and electrophotographic recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114959A JP2515881B2 (en) | 1989-05-10 | 1989-05-10 | Electrophotographic transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02294677A JPH02294677A (en) | 1990-12-05 |
| JP2515881B2 true JP2515881B2 (en) | 1996-07-10 |
Family
ID=14650876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1114959A Expired - Lifetime JP2515881B2 (en) | 1988-09-20 | 1989-05-10 | Electrophotographic transfer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515881B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04350882A (en) * | 1991-05-29 | 1992-12-04 | Mita Ind Co Ltd | Transfer device for image forming device |
| JPH04350879A (en) * | 1991-05-29 | 1992-12-04 | Mita Ind Co Ltd | Transfer device for image forming device |
| JP4869832B2 (en) * | 2006-08-18 | 2012-02-08 | 株式会社リコー | Adherent suction removal device, process cartridge, and image forming apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4869524A (en) * | 1971-12-20 | 1973-09-21 | ||
| JPS4870541A (en) * | 1971-12-23 | 1973-09-25 | ||
| JPS6059595B2 (en) * | 1977-02-08 | 1985-12-25 | 株式会社リコー | electrostatic recording device |
| JPS54635A (en) * | 1977-06-02 | 1979-01-06 | Ricoh Co Ltd | Cleaning device for transfer roller |
| JPS57178259U (en) * | 1981-05-08 | 1982-11-11 | ||
| JPS5881538U (en) * | 1981-11-30 | 1983-06-02 | 株式会社東芝 | charging device |
| JPS58194061A (en) * | 1982-05-10 | 1983-11-11 | Toshiba Corp | Roll electrostatic charge device |
| JPS58199365A (en) * | 1982-05-17 | 1983-11-19 | Fuji Xerox Co Ltd | Conductive brush device |
-
1989
- 1989-05-10 JP JP1114959A patent/JP2515881B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02294677A (en) | 1990-12-05 |
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