JPH02134655A - Cleaning device for corona discharger - Google Patents
Cleaning device for corona dischargerInfo
- Publication number
- JPH02134655A JPH02134655A JP28794388A JP28794388A JPH02134655A JP H02134655 A JPH02134655 A JP H02134655A JP 28794388 A JP28794388 A JP 28794388A JP 28794388 A JP28794388 A JP 28794388A JP H02134655 A JPH02134655 A JP H02134655A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- corona
- discharge
- corona discharger
- abrasive
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 74
- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000005498 polishing Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 6
- 239000003082 abrasive agent Substances 0.000 abstract description 16
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 239000007779 soft material Substances 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、電子写真複写機、同プリンタ等の画像形成装
置に用いるコロナ放電装置に関するものであり、更には
コロナ放電器の放電線の清掃を行なう清掃部材に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a corona discharge device used in image forming apparatuses such as electrophotographic copying machines and printers, and further relates to a method for cleaning the discharge wire of the corona discharge device. The present invention relates to a cleaning member that performs cleaning.
[従来技術]
従来、コロナ放電器用清掃装置として、コロナ放電線や
グリッド線の表面を研磨しトナー等の表面の汚れ、酸化
物を取り去るための清掃部材が知られている。第8図に
はその一例として特公昭62−17824号のコロナ放
電器の清掃具8aの断面図を示す。81は清掃具8aの
保持部材(不図示)に接着層82を介して接着された発
泡性の柔軟物質である。その柔軟物質81の放電線もし
くはグリッド線に接触する清掃面側には布(又は紙)8
5を介して研磨材84が塗布されている。第8図におい
て、B、−B2は清掃具8aの移動方向を示し、この清
掃具8aを放電線もしくはグリッド線に摺擦移動させて
清掃を行なう。ここで、研磨材84を放電線もしくはグ
リッド線に均一に押し当てるために発泡性の柔軟物質8
1が使用されている。[Prior Art] Conventionally, as a cleaning device for a corona discharger, a cleaning member for polishing the surfaces of corona discharge wires and grid lines to remove surface dirt and oxides such as toner is known. As an example, FIG. 8 shows a sectional view of a cleaning tool 8a for a corona discharger disclosed in Japanese Patent Publication No. 17824/1982. Reference numeral 81 is a foamable flexible material bonded to a holding member (not shown) of the cleaning tool 8a via an adhesive layer 82. A cloth (or paper) 8 is placed on the cleaning surface side of the flexible material 81 that comes into contact with the discharge line or grid line.
An abrasive material 84 is applied through the abrasive material 5 . In FIG. 8, B and -B2 indicate the moving direction of the cleaning tool 8a, and cleaning is performed by sliding the cleaning tool 8a against the discharge line or grid line. Here, in order to uniformly press the abrasive material 84 against the discharge line or grid line, a foamable flexible material 8 is used.
1 is used.
[発明が解決しようとしている問題点]しかしながら、
前述の清掃部材を複写装置に取りつけ、自動清掃を行な
ったところ放電線およびグリッド線の汚れの少ない初期
において1〜2回の清掃具の放電線長手方向の往復移動
の後に複写動作を行なったところ放電線の汚れに似た画
像汚れが発生した。これは研磨材が放電線の表面を研磨
し過ぎその研磨粉が放電線上に残留したために放棄ムラ
を生じたものであることがわかった。グリッド線にもそ
の傾向があったが画像の影響は放電線に比べて小さかっ
た。この放電線とグリッド線を研磨能力のない布等で空
拭き清掃した後で複写動作を再び行ったところ画像汚れ
はなくなった。[Problem that the invention seeks to solve] However,
When the above-mentioned cleaning member was attached to a copying machine and automatic cleaning was performed, the copying operation was performed after the cleaning tool was moved back and forth in the longitudinal direction of the discharge wire once or twice at the initial stage when the discharge wire and grid line were less contaminated. Image stains similar to discharge wire stains occurred. It was found that this was because the abrasive material polished the surface of the discharge wire too much and the polishing powder remained on the discharge wire, resulting in uneven abandonment. There was a similar tendency for grid lines, but the influence of images was smaller than for discharge lines. When the discharge line and grid line were wiped clean with a non-abrasive cloth or the like and the copying operation was performed again, the image stain disappeared.
このことから清掃部材として放電線を過剰に研磨しない
こと、および研磨後の研磨粉を捕集する能力があること
が求められる。For this reason, the cleaning member is required to not excessively polish the discharge wire and to have the ability to collect polishing powder after polishing.
また手動清掃においては放電線およびグリッドか)また
画像に研磨粉の汚れが発生したならば再度手動清掃を行
なう等の残留研磨粉回避手段は残されているか自動清掃
手段においては回避手段は期待できない。したかって、
特に自動清掃の場合清掃部材として、研磨粉を極力発生
しないこと、発生しても放電線、グリッド線上に残留さ
せないことがさらに必要である。Also, in manual cleaning, is there a way to avoid residual abrasive powder, such as by performing manual cleaning again if dirt from abrasive powder appears on the image?) There is no hope that an automatic cleaning method will be able to avoid this. . I wanted to,
Particularly in the case of automatic cleaning, it is further necessary for the cleaning member to generate as little abrasive powder as possible, and even if it is generated, it should not remain on the discharge lines or grid lines.
[発明の目的コ
本発明は、上記の点に鑑み成されたものであり、コロナ
放電器の放電線もしくはグリッドもしくはシールド板を
良好に清掃してコロナ放電器の放電ムラの生じないコロ
ナ放電器用清掃装置を提供することを目的とする。[Object of the Invention] The present invention has been made in view of the above points, and provides a corona discharger for use in which discharge wires, grids, or shield plates of a corona discharger are properly cleaned to prevent uneven discharge of the corona discharger. The purpose is to provide cleaning equipment.
[発明の構成]
本発明は、上記目的を達成するためにコロナ放電器のコ
ロナ放電線もしくはグリッドもしくはシールド板を摺擦
することにより清掃する清掃部材を有するコロナ放電器
用清掃装置において、清掃部材の清掃面が気泡構造の表
面を成し、該表面の一部に研磨粉を設けたことを特徴と
するものである。[Structure of the Invention] In order to achieve the above object, the present invention provides a cleaning device for a corona discharger that has a cleaning member that cleans by rubbing the corona discharge wire, grid, or shield plate of the corona discharger. The cleaning surface is characterized in that it has a bubble structure, and a part of the surface is coated with polishing powder.
[実施例] 以下本発明を図示の実施例に基づいて説明する。[Example] The present invention will be explained below based on illustrated embodiments.
第1図は本発明に係る画像形成装置の要部を示す概略構
成図である。同図において、1は感光ドラムで、矢印へ
方向に一定速度で回転する。感光ドラムlの上方には該
ドラム1を均一に帯電する帯電器としてのコロナ帯電器
2を設け、不図示の高圧電源により電圧が印加される。FIG. 1 is a schematic diagram showing the main parts of an image forming apparatus according to the present invention. In the figure, reference numeral 1 denotes a photosensitive drum, which rotates at a constant speed in the direction of the arrow. A corona charger 2 serving as a charger for uniformly charging the drum 1 is provided above the photosensitive drum 1, and a voltage is applied by a high-voltage power source (not shown).
該帯電器2近傍のドラム1表面に不図示の露光手段によ
り画像情報に応じた露光3を与えることにより潜像を形
成し、その後現像器4でトナー像として顕像化するよう
になっている。A latent image is formed by applying exposure 3 according to image information to the surface of the drum 1 near the charger 2 by an exposure means (not shown), and is then visualized as a toner image by a developer 4. .
感光ドラムlの下方には、該ドラム1表面のトナー像を
転写紙5に転写するための帯電器としての転写コロナf
電器6と、転写コロナ帯電器6による帯電電荷を除電し
てドラム1に吸着した転写紙5を分離するための除電器
としての分離コロナ除電器7とを並設しである。Below the photosensitive drum l, a transfer corona f is provided as a charger for transferring the toner image on the surface of the drum 1 onto the transfer paper 5.
An electric device 6 and a separation corona charge remover 7 serving as a charge remover for removing charges caused by the transfer corona charger 6 and separating the transfer paper 5 attracted to the drum 1 are installed in parallel.
コロナ帯電器2の放電電極9(放電線)は第2図に示す
ように、シールド部材2aの長平方向に延在しており、
保持部材8に取り付けた清掃手段としての一対の清掃具
8aでこの電極9を挟み矢EIIB−,又はB2方向に
1廖動することによりその清1・1ルを行う。すなわち
、保持部材8は放電電極9に対して平行に延びるねしI
TIth2oに接続され、該ねシlllIb20はモー
タM、により矢印c1又はB2方向に回転可能となって
いる。As shown in FIG. 2, the discharge electrode 9 (discharge wire) of the corona charger 2 extends in the longitudinal direction of the shield member 2a.
A pair of cleaning tools 8a as cleaning means attached to the holding member 8 are used to clean the electrode 9 by moving it once in the direction of the arrow EIIB- or B2. That is, the holding member 8 has a thread I extending parallel to the discharge electrode 9.
The screw Ib20 is connected to the TIth2o and can be rotated by a motor M in the direction of the arrow c1 or B2.
また、転写コロナ帯電器6もコロナ帯電器2とほぼ同一
の構成、即ち放電電極!+及びモータM2により放電線
張設方向に移動可能な清掃手段としての清掃具10aを
有している。Furthermore, the transfer corona charger 6 has almost the same configuration as the corona charger 2, that is, a discharge electrode! It has a cleaning tool 10a as a cleaning means that can be moved in the discharge wire tensioning direction by a motor M2 and a motor M2.
一方、分離コロナ除電器7においては、第3図に承すよ
うに、シールド部材7aと平行に延在する放電電極13
を清掃するためコロナ帯電器2等と同杆の構成、即ち、
保持部材12に保持され、モータM、により矢印E1又
はB2方向に回転するねし’袖2tに沿って矢印D11
又はD2方向に移動可能な清掃手段としての清掃具12
aを有するか、これに加え、シールド部材7a内面の清
掃手段として、保持部材12と作動連結し清掃具!2a
とともに移動する一対の清掃具14を有している。この
場合、不図示のグリッド電極を併せて清掃する構成を採
用することも可能である。On the other hand, in the separate corona static eliminator 7, as shown in FIG. 3, the discharge electrode 13 extends parallel to the shield member 7a.
In order to clean the corona charger 2, etc., the same rod configuration, i.e.,
Arrow D11 is held along the sleeve 2t held by the holding member 12 and rotated by the motor M in the direction of the arrow E1 or B2.
Or a cleaning tool 12 as a cleaning means movable in the D2 direction.
In addition to this, the shield member 7a has a cleaning tool which is operatively connected to the holding member 12 as a cleaning means for the inner surface of the shield member 7a! 2a
It has a pair of cleaning tools 14 that move together. In this case, it is also possible to adopt a configuration in which a grid electrode (not shown) is also cleaned.
尚、各モータM+ 、M2 、M3は各モータ駆動電源
15.16.17を介して信号発生回路18に接続され
、さらに信号発生回路18は各モータM1〜M、の駆動
タイミングを決定する複写枚数カウンタ19に接続され
ている。Each of the motors M+, M2, and M3 is connected to a signal generation circuit 18 via each motor drive power source 15, 16, and 17, and the signal generation circuit 18 also determines the number of copies that determines the drive timing of each motor M1 to M. It is connected to the counter 19.
第4図は各コロナ放電器2,6.7の清掃タイミングを
示すタイミングチャートである。同図から理解されるよ
うに、本実施例にあっては、コロナ帯電器2の清掃具8
を複写枚数が2000枚になった時点で例えは矢印B1
方向に片道だけ移動しく往路)、複写枚数か4000枚
になった時点で矢印B2方向に片道移動する(復路)。FIG. 4 is a timing chart showing the cleaning timing of each corona discharger 2, 6.7. As can be understood from the figure, in this embodiment, the cleaning tool 8 of the corona charger 2
For example, when the number of copies reaches 2000, arrow B1
When the number of copies reaches 4000, it moves one way in the direction of arrow B2 (return trip).
その後、同様に2000枚毎に片道ずつの移動を繰り返
す。Thereafter, the same one-way movement is repeated every 2000 sheets.
一方、転写コロナ帯電器6及び分離コロナ除電器7につ
いては、それぞれ4000枚の複写枚数毎に清掃具10
.12を往復移動させ、所定の清掃動作を行う。On the other hand, for the transfer corona charger 6 and the separation corona static eliminator 7, cleaning tools are used for each 4,000 copies.
.. 12 is moved back and forth to perform a predetermined cleaning operation.
尚、各コロナ放電器2,6.7の清掃動作は、画像形成
装置の電源スィッチかONされたと同時であって装置の
ウオームアツプ前に自動釣に行うようになっている。こ
の場合、コロナ帯電器2についてはモータM、を約15
秒間駆動し、転写コロナ帯電器6及び分離コロナ除電器
7については、往復で約30秒間モータM2.M3を駆
動する。Incidentally, the cleaning operation of each corona discharger 2, 6, 7 is automatically performed at the same time as the power switch of the image forming apparatus is turned on and before the apparatus is warmed up. In this case, for the corona charger 2, the motor M is approximately 15
The transfer corona charger 6 and the separation corona static eliminator 7 are driven by the motor M2. Drive M3.
清掃具8a、10a、12aは同一のものを使用するこ
とができる。第5図はコロナ帯電器2に用いる清掃具8
aを例に説明するもので、清掃具8aの断面を示すもの
である。Bl”B2は清掃具の移動方向を示す。清掃具
8aは柔軟性物質の発泡体81を接着層82を介して保
持部材8に取が挿着固定しである。本例では柔軟性発泡
体81としてクロロプレンゴムスポンジ(硬度25±5
@ 密度200±50 k g / m ’発泡径0.
05〜0.4mm)を用いた。また研磨材84としては
酸化アルミニウム粉(#6000平均粒径1.2μ 粒
径分布0.6〜3.0μ)を用いた。The same cleaning tools 8a, 10a, and 12a can be used. Figure 5 shows a cleaning tool 8 used for the corona charger 2.
A will be explained using example A, which shows a cross section of the cleaning tool 8a. Bl''B2 indicates the direction of movement of the cleaning tool.The cleaning tool 8a has a flexible foam 81 inserted and fixed to the holding member 8 via an adhesive layer 82.In this example, the flexible foam is 81 is a chloroprene rubber sponge (hardness 25 ± 5
@ Density 200±50 kg/m 'Foam diameter 0.
05 to 0.4 mm) was used. As the abrasive material 84, aluminum oxide powder (#6000, average particle size 1.2μ, particle size distribution 0.6-3.0μ) was used.
この清掃具を用いて、新品の放電電極(直径60μのタ
ングステン線に厚さ0.3μの金メツキをしたもの)の
清掃動作を50回行なったところ表面の金メツキ面に研
摩材の摺擦による細かく浅い摺擦傷が電子顕微鏡にて確
認された。しかし、この間画像にはムラは発生しなかっ
た。このことから研磨材により放電電極は微細に研摩さ
れ、かつ研摩された研摩粉はスポンジ層に捕集され、画
像ムラを生じるような研摩粉は放電電極上に残留してな
いことが確認された。When this cleaning tool was used to clean a new discharge electrode (tungsten wire with a diameter of 60μ and gold plated with a thickness of 0.3μ) 50 times, the abrasive material was rubbed on the gold-plated surface. Fine and shallow scratches were observed using an electron microscope. However, no unevenness occurred in the image during this time. From this, it was confirmed that the discharge electrode was finely polished by the abrasive, that the polished abrasive powder was collected in the sponge layer, and that no abrasive powder that would cause image unevenness remained on the discharge electrode. .
また同じでこの清掃具を用いて複写装置において耐久試
験を複写枚数30万枚行なったが、この間残留粉による
画像ムラおよびトナー シリカ、紙粉等による放電電極
汚れによる画像ムラの発生もなかった。ただし放電電極
上にはトナー、シリカによる多少の(5れは確認された
が、これらは画像に影響を及ぼすほどではないことがわ
かった。In addition, a durability test was carried out using this cleaning tool in a copying machine with a number of copies of 300,000 copies, and during this test, there was no occurrence of image unevenness due to residual powder or due to discharge electrode stains due to toner silica, paper powder, etc. However, some amount of toner and silica was observed on the discharge electrode, but it was found that these did not affect the image.
第6図は柔軟性物質の発泡体81の放電電極に接触する
側の面の発泡構造の発泡内避面に研摩材84を塗イO1
接着したものである。発泡内を塞ぐことなく研磨材を塗
布することにより第1の例と同社な効果が得られる。ま
た相対的に研摩面積が増加することにより研摩能力が増
加する。FIG. 6 shows an abrasive material 84 applied to the inner surface of the foam structure on the side that contacts the discharge electrode of a foam 81 made of a flexible material.
It is glued together. By applying the abrasive material without blocking the inside of the foam, the same effect as in the first example can be obtained. Moreover, the polishing ability increases by relatively increasing the polishing area.
第7図は第6図の研磨材84の塗布を清掃具8aの移動
方向中央付近に集中し、端部は未塗布とした。従って研
磨材84を塗布していない発泡面をそのまま清掃面とす
るものである。これにより残留粉の捕集能力が増加する
。In FIG. 7, the abrasive material 84 shown in FIG. 6 was applied concentrated near the center in the direction of movement of the cleaning tool 8a, and the ends were left uncoated. Therefore, the foamed surface to which the abrasive material 84 is not applied is used as the cleaning surface. This increases the ability to collect residual powder.
参考までに非発泡状の柔軟性物質に研磨材を塗布したも
の、発泡状の柔軟性物質で発泡構造を埋めるほど研磨材
を塗布したものはいずれも放電電極上の残留研摩粉のた
めに放電ムラを生じ画像ムラを生ずることか分った。For reference, both cases in which an abrasive material is applied to a non-foamed flexible material and cases in which an abrasive material is applied to the extent that it fills the foamed structure with a foamed flexible material result in discharge due to residual abrasive powder on the discharge electrode. It was found that this caused unevenness in the image.
本実施例の柔軟性発泡体としてはクロロプレンゴムに限
定されることはなく、ネオプレン、EPDM等発泡構造
を有する柔軟材であれは利用することができる。The flexible foam used in this embodiment is not limited to chloroprene rubber, and any flexible material having a foam structure such as neoprene or EPDM can be used.
また研磨材としては酸化アルミニウム粉に限らず炭化ケ
イ素、炭化ホウ素、などを用いることかできる。さらに
研磨材の粒度は#6000に限らず#1000〜#10
000を用いることができるが研摩粉の発生を低下させ
るためには84000以上か、又研摩能力を維持するた
めには#8000以下が特に望ましいことがわかった。Further, as the abrasive material, not only aluminum oxide powder but also silicon carbide, boron carbide, etc. can be used. Furthermore, the particle size of the abrasive is not limited to #6000, but from #1000 to #10.
000 can be used, but it has been found that in order to reduce the generation of abrasive powder, it is more than 84,000, and in order to maintain the polishing ability, it is particularly desirable to use less than #8,000.
本実施例のように研磨材を用いて清掃しなければならな
いのはコロナ放電電極に付着する酸化ケイ素を除去する
ためである。(トナーや紙粉の除去のためには一般には
研磨材は必要としない。)しかし、酸化ケイ素は放電電
極に強力に付着しているので研摩能力を上げる必要が生
じた。The reason why it is necessary to use an abrasive for cleaning as in this embodiment is to remove silicon oxide adhering to the corona discharge electrode. (Generally, an abrasive is not required to remove toner or paper dust.) However, since silicon oxide strongly adheres to the discharge electrode, it has become necessary to increase the polishing ability.
このため放電電極表面の研摩を同時に発生し、このため
研摩粉が放電電極表面に残留し、放電ムラによる画像ム
ラを生じることになるが、逆に研磨材の研摩能力を低下
させ過ぎて放電電極の研摩を防ILシようとすると酸化
ケイ素か除去できなくなる。本実施例は柔軟性発泡体の
発泡表面を利用しここに適正な粒度のfiJF K!材
を塗布・接着することにより、酸化ケイ素の除去および
残留研摩粉の捕集を同時に達成することが可能になり、
放電電極の汚れを軽減し長期間安定な画像を得ることが
可能になった。For this reason, polishing of the surface of the discharge electrode occurs at the same time, and as a result, polishing powder remains on the surface of the discharge electrode, causing image unevenness due to discharge unevenness, but conversely, the polishing ability of the abrasive material is reduced too much, and the polishing powder of the discharge electrode is polished. If you try to prevent IL from polishing, you will not be able to remove silicon oxide. This example utilizes the foamed surface of the flexible foam to obtain fiJFK! of appropriate particle size. By applying and bonding the material, it is possible to remove silicon oxide and collect residual abrasive powder at the same time.
It has become possible to reduce the amount of dirt on the discharge electrode and obtain stable images for a long period of time.
本発明の清掃装置は、第1図に示した実施例に限らず放
電電極、シールド板、グリッドii極の清掃において適
宜利用できる。The cleaning device of the present invention can be used not only for the embodiment shown in FIG. 1 but also for cleaning discharge electrodes, shield plates, and grid II poles as appropriate.
また自動清掃に限らず、手動清掃具およびサービス清掃
具としても使用できるのはもちろんである。Moreover, it can of course be used not only for automatic cleaning but also as a manual cleaning tool and a service cleaning tool.
[発明の効果]
以上説明したように本発明によれは、コロナ放電線もし
くはグリッドもしくはシールド板を摺歴情帰する清掃部
材表面か気泡構造表面を成し、その表面の一部に研摩粉
を備えているのでコロナ放電線を良好に清掃できると共
にコロナ放電器の放電ムラを防止することができた。[Effects of the Invention] As explained above, according to the present invention, the cleaning member surface or bubble structure surface is formed to give a sliding history to the corona discharge wire, the grid, or the shield plate, and a part of the surface is coated with abrasive powder. Because of this, the corona discharge wire could be cleaned well and uneven discharge of the corona discharger could be prevented.
略図、
第2図、第3図は本発明のコロナ放電器用清掃装置の斜
視図、
第4図は本発明のコロナ放電器用清掃装置の清掃のタイ
ミング図、
第5図は本発明のコロナ放電器用清掃装置の一実施例を
示す拡大断面図、
第6図、冨7図は本発明のコロナ放電器用清掃装置の他
の実施例を示す拡大断面図、
第8図は従来のコロナ放電器用清掃装置の拡大断面図で
ある。2 and 3 are perspective views of the cleaning device for a corona discharger of the present invention, FIG. 4 is a timing chart of cleaning of the cleaning device for a corona discharger of the present invention, and FIG. 5 is a diagram of the cleaning device for a corona discharger of the present invention. 6 and 7 are enlarged sectional views showing other embodiments of the cleaning device for a corona discharge device of the present invention, and FIG. 8 is a conventional cleaning device for a corona discharge device. FIG.
8a、10a、12aは清掃具 9.11.13はコロナ放電線 81は柔軟性物質の発泡体 84は研磨材8a, 10a, 12a are cleaning tools 9.11.13 is corona discharge wire 81 is a flexible material foam 84 is abrasive material
Claims (1)
ールド板を摺擦することにより清掃する清掃部材を有す
るコロナ放電器用清掃装置において清掃部材の清掃面が
気泡構造の表面を成し、該表面の一部に研磨粉を設けた
ことを特徴とするコロナ放電器用清掃装置。 2、上記研磨粉の粒度が#1000〜 #10000である特許請求の範囲第1項記載のコロナ
放電器用清掃装置。 3、上記研磨粉の粒度が#4000〜 #8000である特許請求の範囲第2項記載のコロナ放
電器用清掃装置。[Claims] 1. In a cleaning device for a corona discharger that has a cleaning member that cleans by rubbing the corona discharge wire, grid, or shield plate of the corona discharger, the cleaning surface of the cleaning member has a surface with a bubble structure. A cleaning device for a corona discharge device, characterized in that a polishing powder is provided on a part of the surface. 2. The cleaning device for a corona discharger according to claim 1, wherein the polishing powder has a particle size of #1000 to #10000. 3. The cleaning device for a corona discharger according to claim 2, wherein the polishing powder has a particle size of #4000 to #8000.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63287943A JP2675837B2 (en) | 1988-11-15 | 1988-11-15 | Corona discharge device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63287943A JP2675837B2 (en) | 1988-11-15 | 1988-11-15 | Corona discharge device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02134655A true JPH02134655A (en) | 1990-05-23 |
JP2675837B2 JP2675837B2 (en) | 1997-11-12 |
Family
ID=17723746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63287943A Expired - Lifetime JP2675837B2 (en) | 1988-11-15 | 1988-11-15 | Corona discharge device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2675837B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055972A2 (en) * | 1999-05-28 | 2000-11-29 | Canon Kabushiki Kaisha | Discharge wire, method of manufacturing discharge wire and electrification device |
EP1237049A2 (en) * | 2001-02-28 | 2002-09-04 | Heidelberger Druckmaschinen Aktiengesellschaft | Automatic device for cleaning corona wires |
US7043176B1 (en) | 2002-09-26 | 2006-05-09 | Eastman Kodak Company | Apparatus and method for damping a corona wire in an electrographic printer |
JP2009048113A (en) * | 2007-08-22 | 2009-03-05 | Ricoh Co Ltd | Charger, charging method, image forming apparatus, image forming method, and process cartridge |
JP2009116100A (en) * | 2007-11-07 | 2009-05-28 | Fuji Xerox Co Ltd | Electrifying device |
JP2011059616A (en) * | 2009-09-14 | 2011-03-24 | Brother Industries Ltd | Charger |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0235142U (en) * | 1988-08-29 | 1990-03-07 |
-
1988
- 1988-11-15 JP JP63287943A patent/JP2675837B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0235142U (en) * | 1988-08-29 | 1990-03-07 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055972A2 (en) * | 1999-05-28 | 2000-11-29 | Canon Kabushiki Kaisha | Discharge wire, method of manufacturing discharge wire and electrification device |
EP1055972A3 (en) * | 1999-05-28 | 2004-01-14 | Canon Kabushiki Kaisha | Discharge wire, method of manufacturing discharge wire and electrification device |
US6917776B2 (en) | 1999-05-28 | 2005-07-12 | Canon Kabushiki Kaisha | Discharge wire, method of manufacturing discharge wire and electrification device |
EP1237049A2 (en) * | 2001-02-28 | 2002-09-04 | Heidelberger Druckmaschinen Aktiengesellschaft | Automatic device for cleaning corona wires |
US6580885B2 (en) * | 2001-02-28 | 2003-06-17 | Heidelberger Druckmaschinen Ag | Automatic mechanism for cleaning corona wires |
EP1237049A3 (en) * | 2001-02-28 | 2005-03-09 | Eastman Kodak Company | Automatic device for cleaning corona wires |
US6868242B2 (en) | 2001-02-28 | 2005-03-15 | Eastman Kodak Company | Mechanism and method for cleaning corona wires |
US7043176B1 (en) | 2002-09-26 | 2006-05-09 | Eastman Kodak Company | Apparatus and method for damping a corona wire in an electrographic printer |
JP2009048113A (en) * | 2007-08-22 | 2009-03-05 | Ricoh Co Ltd | Charger, charging method, image forming apparatus, image forming method, and process cartridge |
JP2009116100A (en) * | 2007-11-07 | 2009-05-28 | Fuji Xerox Co Ltd | Electrifying device |
JP2011059616A (en) * | 2009-09-14 | 2011-03-24 | Brother Industries Ltd | Charger |
Also Published As
Publication number | Publication date |
---|---|
JP2675837B2 (en) | 1997-11-12 |
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