JPH0830150A - Image-forming device - Google Patents

Image-forming device

Info

Publication number
JPH0830150A
JPH0830150A JP6185106A JP18510694A JPH0830150A JP H0830150 A JPH0830150 A JP H0830150A JP 6185106 A JP6185106 A JP 6185106A JP 18510694 A JP18510694 A JP 18510694A JP H0830150 A JPH0830150 A JP H0830150A
Authority
JP
Japan
Prior art keywords
image
image carrier
image forming
forming apparatus
toner
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
JP6185106A
Other languages
Japanese (ja)
Inventor
Nobuhiro Hayashi
信 弘 林
Nobuo Nakazawa
沢 伸 夫 中
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 JP6185106A priority Critical patent/JPH0830150A/en
Publication of JPH0830150A publication Critical patent/JPH0830150A/en
Pending legal-status Critical Current

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  • Dry Development In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To effectively prevent deterioration of image quality such as image flow even after a device is left for a long time by running at warmup time an image carrier and the member which is rubbed against the surface of the image carrier, at such speed that one is lower than the other. CONSTITUTION:A magnet roller 22 is disposed in a cleaner 2 and upstream from a cleaning blade 21 in the direction of the running of the image carrier 1, and rorates in the opposite direction to the image carrier 1. A magnetic brush composed of magnetic toner in the cleaner is formed on the surface of the magnet roller, and the surface of the image carrier 1 is rubbed with the magnetic brush by running the image carrier 1 and magnet roller 22 so as to have relative speeds. Thus, by decreasing the peripheral speed of the image carrier 1 at the time of warmup and by making a large difference in running speed between the image carrier 1 and magnet roller 22, satisfactory images can be obtained at all times irrespective of an increase in the number of sheets which are inserted.

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、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】上記のような周知の画像形成装置、とくに
アモルファスシリコン系光導電体感光層を有する像担持
体をそなえた画像形成装置にあっては、装置内の高圧部
材の存在に起因するコロナ生成物の吸湿、空気中の水分
などが像担持体表面に付着して当該部位が低抵抗化し
て、画像流れと称される画質の劣化を招来することが指
摘されてされている。
In the well-known image forming apparatus as described above, particularly in the image forming apparatus having an image carrier having an amorphous silicon type photoconductor photosensitive layer, corona generation is caused by the presence of a high-pressure member in the apparatus. It has been pointed out that moisture absorption of substances, moisture in the air, and the like adhere to the surface of the image bearing member to lower the resistance of the portion, which causes deterioration of image quality called image deletion.

【0003】このような問題に対処すべく、本出願人
は、像担持体表面を一定温度に制御し、且つ帯電器で発
生するオゾンや窒化物を強制的に機外に排出する手段を
設け、さらに、像担持体表面をトナーや研磨材で摺擦研
削することによって、上記の問題に対して一定の効果が
得られることを確認している。
In order to deal with such a problem, the applicant of the present invention provides a means for controlling the surface of the image bearing member to a constant temperature and forcibly discharging ozone and nitride generated by the charger to the outside of the apparatus. Further, it has been confirmed that by rubbing the surface of the image carrier with a toner or an abrasive, a certain effect can be obtained against the above problems.

【0004】しかしながら、このような手段を講じて
も、像担持体が周囲温度と同一になるような状況(像担
持体を加温するヒータをオフする)で、とくに高湿環境
下で長時間放置した後、像担持体を加温して画像形成動
作を行うと、像担持体のコロナ帯電器に対向する部位、
その近傍に画像流れが生ずることが判明している。たと
えば、画像形成動作終了後、ないしはその後しばらく待
機状態で放置後、像担持体加温用ヒータを切り、6時間
程度放置した後、再びヒータを入れて像担持体が所定温
度に達した後画像形成操作を行った場合にも画像流れが
生ずることが判明した。
However, even if such a measure is taken, in a situation where the image carrier becomes the same as the ambient temperature (the heater that heats the image carrier is turned off), especially in a high humidity environment for a long time. After standing, the image carrier is heated to perform an image forming operation, and a portion of the image carrier facing the corona charger,
It has been found that image deletion occurs in the vicinity. For example, after the image forming operation is completed, or after it is left in a standby state for a while, the heater for heating the image carrier is turned off, left for about 6 hours, and then the heater is turned on again to reach a predetermined temperature. It has been found that image deletion occurs even when the forming operation is performed.

【0005】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、画像形成の準備過程たるウォームア
ップ時に、像担持体とその表面を摺擦する部材の一方を
他方よりも低速度で走行させることによって、像担持体
表面を強く摺擦して上述のような画質の劣化を阻止し得
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 at the time of warming up, which is a preparation process for image formation, one of the members for rubbing the image carrier and the surface thereof has a lower speed than the other. It is an object of the present invention to provide an image forming apparatus capable of preventing the above-described deterioration of image quality by rubbing the surface of the image bearing member strongly by traveling in the above.

【0006】[0006]

【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、像担持体表面に形成した静電潜
像に現像器からトナーを付与して可転写トナー像を形成
し、該トナー像を転写材に転写し、転写残りトナーをク
リーニング手段によって除去するとともに、画像形成工
程中に前記像担持体に摺擦する摺擦部材をそなえた画像
形成装置において、ウォームアップ時に、像担持体また
はこれに摺擦する摺擦部材のいずれか一方を画像形成時
よりも遅い速度で、他方を画像形成時と同様の速度で駆
動する画像形成装置、または、前記のものにおいて、摺
擦部材が、画像形成装置のクリーニング装置に配設され
たマグネットローラであるか、または、前記のものにお
いて、摺擦部材が、画像形成装置のクリーニング装置に
配設された弾性クリーニングローラであるか、または、
前記のものにおいて、摺擦部材が、画像形成装置の現像
器の現像スリーブであるか、または、前記のものにおい
て、摺擦部材が、画像形成装置の帯電手段たる帯電ロー
ラであることを特徴とする画像形成装置である。
To achieve the above object, the present invention forms a transferable toner image by applying toner from a developing device to an electrostatic latent image formed on the surface of an image bearing member. In an image forming apparatus having a rubbing member that transfers the toner image to a transfer material, removes the untransferred toner by a cleaning unit, and rubs the image carrier during the image forming step, during warm-up, An image forming apparatus that drives one of an image carrier and a rubbing member that rubs against the image carrier at a slower speed than during image formation, and the other at a speed similar to that during image formation, or The rubbing member is a magnet roller arranged in the cleaning device of the image forming apparatus, or in the above-mentioned one, the rubbing member is an elastic member arranged in the cleaning device of the image forming apparatus. Over training roller or where,
In the above, the rubbing member is a developing sleeve of a developing device of the image forming apparatus, or in the above, the rubbing member is a charging roller that is a charging unit of the image forming apparatus. Image forming apparatus.

【0007】このように構成することによって、長時間
放置した後でも画像流れなど画質劣化を生ずることを有
効に防止することができる。
With this structure, it is possible to effectively prevent image deterioration such as image deletion even after being left for a long time.

【0008】[0008]

【実施例の説明】「図1」は本発明を適用するに適した
画像形成装置の概略側面図である。紙面に垂直方向に延
設されて図示矢印方向に回転走行する円筒状の像担持体
1表面感光層が、一次帯電器4によって一様に帯電さ
れ、この帯電面に画像信号5ーaが投射されて静電潜像
が形成される。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic side view of an image forming apparatus suitable for applying the present invention. The photosensitive layer on the surface of the cylindrical image carrier 1 extending in the direction perpendicular to the paper and rotating in the direction of the arrow in the figure is uniformly charged by the primary charger 4, and the image signal 5-a is projected on this charged surface. Then, an electrostatic latent image is formed.

【0009】像担持体1の回転につれて前記潜像が、現
像器6を配置した現像部位に達すると、現像スリーブ7
を介して現像器からトナーがこれに供給されてトナー像
となる。
When the latent image reaches the developing portion where the developing device 6 is arranged as the image carrier 1 rotates, the developing sleeve 7
Toner is supplied from the developing unit to the toner image via the developing unit to form a toner image.

【0010】前記トナー像が、転写帯電器9を配置した
転写部位に達すると、ガイド8を経て該転写部位にトナ
ー像とタイミングを合わせて転写材が供給され、これと
ともに前記転写帯電器には転写バイアスが印加されて像
担持体側のトナー像は転写材に転移する。
When the toner image reaches the transfer portion where the transfer charger 9 is arranged, the transfer material is supplied to the transfer portion through the guide 8 in time with the toner image, and the transfer material is also supplied to the transfer charger. A transfer bias is applied and the toner image on the image carrier side is transferred to the transfer material.

【0011】次いで転写材には、転写時とは逆極性の分
離バイアスが分離帯電器10によって印加され、転写材
は像担持体1から分離し、搬送路11を経て定置装置1
2に至る。
Next, a separation bias having a reverse polarity to that at the time of transfer is applied to the transfer material by the separation charging device 10, the transfer material is separated from the image carrier 1, and the stationary device 1 is passed through the conveyance path 11.
Up to 2.

【0012】定着装置には、適宜の熱源によって所定温
度に加熱されている定着ローラ12aと、これに圧接す
る加圧ローラが配設してあり、トナー像を担持する転写
材は、これら両ローラの圧接ニップ部を通過する。この
とき転写材上のトナーは転写材に溶融固定され、ハード
コピーとして機外に排出される。
The fixing device is provided with a fixing roller 12a that is heated to a predetermined temperature by an appropriate heat source and a pressure roller that comes into pressure contact with the fixing roller 12a. Pass through the pressure contact nip part. At this time, the toner on the transfer material is melted and fixed on the transfer material, and is ejected outside the machine as a hard copy.

【0013】転写時に転写材に転移しなかった残留トナ
ーはそのまま像担持体とともに進行し、クリーニグ装置
2においてクリーニングブレード21に除去される。さ
らに前露光ランプ3によって像担持体上に残る残留電荷
が除去され、像担持体1は次の画像形成工程に入り得る
状態になる。
Residual toner that has not been transferred to the transfer material during transfer proceeds with the image carrier as it is, and is removed by the cleaning blade 21 in the cleaning device 2. Furthermore, the residual charges remaining on the image carrier are removed by the pre-exposure lamp 3, and the image carrier 1 is ready for the next image forming step.

【0014】前記クリーニング装置2内、像担持体の走
行方向にみてクリーニングブレード21の上流側にはマ
グネットローラ22が配設してあって像担持体とは反対
方向に回転している。該マグネットローラ表面には、ク
リーニング装置内の磁性トナーによる磁気ブラシが形成
され、像担持体1とマグネットローラ22とを相対速度
を持つように走行させることによって、この磁気ブラシ
によって像担持体表面が摺擦される。
Inside the cleaning device 2, a magnet roller 22 is arranged on the upstream side of the cleaning blade 21 as viewed in the running direction of the image carrier, and rotates in the direction opposite to the image carrier. A magnetic brush of magnetic toner in the cleaning device is formed on the surface of the magnet roller, and the image carrier surface is moved by the magnetic brush by moving the image carrier 1 and the magnet roller 22 so as to have a relative speed. Rubbed.

【0015】前記クリーニングブレードは、像担持体上
の残留トナーの除去には有効であるが、前述のような窒
化物、転写紙からの析出物などで像担持体に付着した異
物等の除去には機能が不充分であることが知られてお
り、 このような異物の除去には、上記のような磁気ブ
ラシによる摺擦クリーニングが有効である。また、マグ
ネットローラの代わりに弾性材料で構成したクリーニン
グローラで像担持体を摺擦するのも有効であることが知
られている。
The cleaning blade is effective for removing the residual toner on the image bearing member, but is also effective for removing foreign matters and the like adhering to the image bearing member due to the above-mentioned nitrides, deposits from transfer paper and the like. Is known to have an insufficient function, and in order to remove such foreign matter, the rubbing cleaning with the above magnetic brush is effective. It is also known that it is effective to rub the image carrier with a cleaning roller made of an elastic material instead of the magnet roller.

【0016】このような画像形成装置において、本発明
にあっては、像担持体と、これを摺擦する部材の速度
を、とくに画像形成準備段階において適宜に設定するこ
とを要旨とするもので、これについて「図2」によって
説明する。
In such an image forming apparatus, the gist of the present invention is to appropriately set the speeds of the image carrier and the members for rubbing the image carrier, particularly in the image forming preparation stage. This will be described with reference to FIG.

【0017】同図は、前記のような画像形成装置の、像
担持体1、クリーニング装置2内のマグネットローラ2
2の速度と、定着装置の有熱源定着ローラ12a、加温
手段をそなえた像担持体1の関係を示すタイミングチャ
ートである。
FIG. 1 shows an image carrier 1 and a magnet roller 2 in a cleaning device 2 of the image forming apparatus as described above.
5 is a timing chart showing the relationship between the speed of 2 and the heat source fixing roller 12a of the fixing device, and the image carrier 1 having a heating means.

【0018】メインスイッチをオンすると、像担持体1
は周速100mm/sec、像担持体表面摺擦部材たる
マグネットローラ22は、像担持体と対向位置において
同方向に周速320mm/secで走行する。クリーニ
ング装置内には符号23で示すトナー層厚規制部材が配
設してあり、これによってマグネットローラ表面のトナ
ー層の厚みを像担持体に当接する程度に調整している。
When the main switch is turned on, the image carrier 1
The peripheral speed is 100 mm / sec, and the magnet roller 22, which is a rubbing member for the surface of the image carrier, travels in the same direction at a peripheral speed of 320 mm / sec at a position facing the image carrier. A toner layer thickness regulating member designated by the reference numeral 23 is provided in the cleaning device, and the thickness of the toner layer on the surface of the magnet roller is adjusted to such an extent that it abuts on the image carrier.

【0019】この状態は定着ローラ12aの表面温度が
熱定着可能な温度、200。Cに達するまで継続する。
また、メインスイッチ・オンとともに像担持体1を加温
するヒータもオンされ、像担持体表面温度が44。Cに
維持されるように制御されるものとする。
In this state, the surface temperature of the fixing roller 12a is 200 at which the heat fixing is possible. Continue until C is reached.
Further, when the main switch is turned on, the heater for heating the image carrier 1 is also turned on, and the surface temperature of the image carrier is 44. It shall be controlled to be maintained at C.

【0020】定着ローラ12a温度が200。C、像担
持体表面温度が44。Cに安定するとウォームアップし
が終了し、像担持体1、マグネットローラ12aの回転
が停止する。次いで、コピースイッチをオンすると像担
持体1は周速300mm/sec、マグネットローラ1
2aは周速320mm/secでそれぞれ走行して画像
形成動作が行われる。
The temperature of the fixing roller 12a is 200. C, the image carrier surface temperature is 44. When the temperature stabilizes at C, the warm-up ends, and the rotation of the image carrier 1 and the magnet roller 12a stops. Next, when the copy switch is turned on, the image carrier 1 has a peripheral speed of 300 mm / sec and the magnet roller 1
2a runs at a peripheral speed of 320 mm / sec to perform an image forming operation.

【0021】即ち、ウォームアップ中の像担持体1とマ
グネットローラ12aの相対速度差は220mm/se
c、画像形成時の速度差は20mm/secで、前者が
後者の10倍以上となっており、摺擦クリーニング作用
も前者が格段に強力となっている。
That is, the relative speed difference between the image carrier 1 and the magnet roller 12a during warm-up is 220 mm / se.
c, the speed difference at the time of image formation is 20 mm / sec, the former is 10 times or more that of the latter, and the former is remarkably strong in the rubbing cleaning action.

【0022】「図3」は、前述の装置により、上記のよ
うな仕方で画像形成を行った場合の画像流れの発生状況
を示した実験例である。実験は温度32.5。C、湿度
85%の環境で、2万枚/日を10日にわたって行い、
毎朝ウォームアップ直後の画像で画像流れのレベルを判
定した。なお、像担持体としては直径108mmのアモ
ルファスシリコン感光体を用い、ウォームアップ時間は
約4分であった。
FIG. 3 is an experimental example showing the state of occurrence of image deletion when the above-mentioned apparatus is used to form an image in the manner described above. Experiment temperature is 32.5. C, humidity of 85%, 20,000 sheets / day for 10 days,
The level of image deletion was judged every morning from the image immediately after warming up. An amorphous silicon photoconductor having a diameter of 108 mm was used as the image carrier, and the warm-up time was about 4 minutes.

【0023】同図から判るように、本発明に従ってウォ
ームアップ時の像担持体の周速を低下させて、像担持体
とマグネットローラの走行速度に大きい速度差をもたせ
ると、、通紙枚数の増加に拘わらず常時良好な画像を得
ることができたが、速度差が小さい場合には、通紙10
万枚を越えたところで画質の劣化がみられた。また、像
担持体の周速を低下させることは騒音を抑制する効果も
ある。
As can be seen from the figure, when the peripheral speed of the image bearing member during warm-up is reduced according to the present invention to cause a large speed difference between the running velocity of the image bearing member and the magnet roller, A good image was always obtained regardless of the increase, but when the speed difference is small, the paper passing 10
The image quality was deteriorated when the number of images exceeded 10,000. Further, reducing the peripheral speed of the image carrier also has the effect of suppressing noise.

【0024】像担持体とマグネットローラの周速差を大
きくするため手段として、いずれかの周速を上げること
も考えられるが、このようにすると、モータのコストア
ップ、騒音の増大、トナーのブロッキング、飛散など種
々な欠陥が派生するので好ましくない。また、あまり長
時間速度差を大きく維持すると像担持体表面感光層の研
削量が大きくなって寿命を短くすると云う問題がある。
As a means for increasing the peripheral speed difference between the image carrier and the magnet roller, it is conceivable to increase either peripheral speed. However, if this is done, the cost of the motor increases, noise increases, and toner blocking occurs. It is not preferable because various defects such as scattering occur. Further, if the speed difference is kept too large for a long time, there is a problem that the amount of grinding of the photosensitive layer on the surface of the image carrier becomes large and the life becomes short.

【0025】上記の実施例装置の場合、像担持体の速度
を遅くしたが、マグネットローラの速度を遅くしても同
様の効果があることが確認されている。
In the case of the apparatus of the above-mentioned embodiment, the speed of the image carrier is slowed down, but it has been confirmed that the same effect can be obtained even if the speed of the magnet roller is slowed down.

【0026】さらに、像担持体に摺擦する部材として
は、前述のようなマグネットローラ以外にも、既述の弾
性クリーニングローラ、接触現像方式の場合における現
像スリーブ等を利用することも可能である。また、一次
帯電器の代わりに帯電ローラのような接触帯電手段を用
いている場合にはこれをも利用できる。
Further, as the member which slides on the image bearing member, in addition to the above-mentioned magnet roller, it is also possible to use the above-mentioned elastic cleaning roller, the developing sleeve in the case of the contact developing system, and the like. . Further, when a contact charging means such as a charging roller is used instead of the primary charging device, this can also be used.

【0027】更にまた、像担持体に複数の接触部材があ
る場合には、それらの全部または一部を同時に像担持体
表面摺擦部材として利用することも可能である。
Furthermore, when the image carrier has a plurality of contact members, it is possible to use all or a part of them as the image carrier surface rubbing member at the same time.

【0028】以上いずれ場合においても、像担持体表面
摺擦部材の摺擦効果によっては、ウォームアップ全時間
にわたって摺擦を行う必要はなく、摺擦時間は適宜に設
定可能であることは云うまでもない。
In any of the above cases, depending on the rubbing effect of the surface rubbing member of the image bearing member, it is not necessary to perform rubbing over the entire warm-up time, and the rubbing time can be set appropriately. Nor.

【0029】また、像担持体と帯電器とが長時間停止対
向して(画像流れが発生し易い部位)を検知して当該部
分を重点的に摺擦することによってウォームアップ時間
を短縮したり、湿度を検知してウォーアップ中の回転時
間を制御することも可能であり、このようにして像担持
体回転時間を短くすることによって像担持体の長寿命化
をはかり得る。
Further, the warm-up time can be shortened by detecting that the image carrier and the charger stop for a long period of time and face each other (a region where image deletion is apt to occur), and the region is intensively rubbed. It is also possible to detect the humidity and control the rotation time during the warm-up. By shortening the rotation time of the image carrier in this way, the life of the image carrier can be extended.

【0030】[0030]

【発明の効果】以上説明したように、本発明によれば寝
画像形成装置のウォームアップ時に、像担持体またはこ
れに当接摺擦する部材のいずれか一方の速度を画像形成
時よりも遅く、他方の速度を画像形成時と同様の速度で
駆動して、画像形成準備段階で像担持体表面を画像形成
時よりも強く摺擦したから、高湿環境下で長時間放置し
たような場合にも画像流れの発生を有効に阻止でき、良
質の画像を得るのに資するところが大である。
As described above, according to the present invention, at the time of warming up the sleeping image forming apparatus, the speed of either the image carrier or the member that abuts and rubs against it is slower than that at the time of image formation. , When the other speed is driven at the same speed as during image formation and the surface of the image carrier is rubbed more strongly during image preparation preparation than during image formation, so that it is left for a long time in a high humidity environment. In particular, it is possible to effectively prevent the occurrence of image deletion, which contributes to obtaining a high quality image.

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

【図1】 本発明を適用するに適した画像形成装置の概
略側面図
FIG. 1 is a schematic side view of an image forming apparatus suitable for applying the present invention.

【図2】 本発明の実施例を示すタイミングチャートFIG. 2 is a timing chart showing an embodiment of the present invention.

【図3】 上記実施例による実験結果を示す表FIG. 3 is a table showing experimental results according to the above-mentioned example.

【符号の説明】[Explanation of symbols]

1 像担持体 2 クリーニング装置 3 前露光ランプ 4 一次帯電器 6 現像器 7 現像スリーブ 9 転写帯電器 10 分離帯電器 12 定着装置 12a 定着ローラ 21 クリーニングブレード 22 マグネットローラ DESCRIPTION OF SYMBOLS 1 Image carrier 2 Cleaning device 3 Pre-exposure lamp 4 Primary charger 6 Developing device 7 Developing sleeve 9 Transfer charger 10 Separation charger 12 Fixing device 12a Fixing roller 21 Cleaning blade 22 Magnet roller

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】像担持体表面に形成した静電潜像に現像器
からトナーを付与して可転写トナー像を形成し、該トナ
ー像を転写材に転写し、転写残りトナーをクリーニング
手段によって除去するとともに、画像形成工程中に前記
像担持体に摺擦する摺擦部材をそなえた画像形成装置に
おいて、 ウォームアップ時に、像担持体またはこれに摺擦する摺
擦部材のいずれか一方を画像形成時よりも遅い速度で、
他方を画像形成時と同様の速度で駆動する画像形成装
置。
1. A toner is applied from a developing device to an electrostatic latent image formed on the surface of an image carrier to form a transferable toner image, the toner image is transferred to a transfer material, and the transfer residual toner is cleaned by a cleaning unit. In an image forming apparatus having a rubbing member that removes and slides against the image carrier during the image forming process, during warm-up, either one of the image carrier and the rubbing member that rubs against the image is imaged. At a slower rate than when formed,
An image forming apparatus that drives the other at the same speed as during image formation.
【請求項2】摺擦部材が、画像形成装置のクリーニング
装置に配設されたマグネットローラである「請求項1」
記載の画像形成装置。
2. A rubbing member is a magnet roller provided in a cleaning device of an image forming apparatus.
The image forming apparatus described.
【請求項3】摺擦部材が、画像形成装置のクリーニング
装置に配設された弾性クリーニングローラである「請求
項1」載の画像形成装置。
3. The image forming apparatus according to claim 1, wherein the rubbing member is an elastic cleaning roller provided in a cleaning device of the image forming apparatus.
【請求項4】摺擦部材が、画像形成装置の現像器の現像
スリーブである「請求項1」記載の画像形成装置。
4. The image forming apparatus according to claim 1, wherein the rubbing member is a developing sleeve of a developing device of the image forming apparatus.
【請求項5】摺擦部材が、画像形成装置の帯電手段たる
帯電ローラである「請求項1」記載の画像形成装置。
5. The image forming apparatus according to claim 1, wherein the rubbing member is a charging roller which is a charging unit of the image forming apparatus.
JP6185106A 1994-07-15 1994-07-15 Image-forming device Pending JPH0830150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6185106A JPH0830150A (en) 1994-07-15 1994-07-15 Image-forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6185106A JPH0830150A (en) 1994-07-15 1994-07-15 Image-forming device

Publications (1)

Publication Number Publication Date
JPH0830150A true JPH0830150A (en) 1996-02-02

Family

ID=16164967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6185106A Pending JPH0830150A (en) 1994-07-15 1994-07-15 Image-forming device

Country Status (1)

Country Link
JP (1) JPH0830150A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1550920B1 (en) * 2003-12-22 2010-04-21 Canon Kabushiki Kaisha Color image forming apparatus with magnetic cleaning roller
JP2011017879A (en) * 2009-07-09 2011-01-27 Kyocera Mita Corp Image forming apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1550920B1 (en) * 2003-12-22 2010-04-21 Canon Kabushiki Kaisha Color image forming apparatus with magnetic cleaning roller
JP2011017879A (en) * 2009-07-09 2011-01-27 Kyocera Mita Corp Image forming apparatus

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