JPH0126064B2 - - Google Patents
Info
- Publication number
- JPH0126064B2 JPH0126064B2 JP58118083A JP11808383A JPH0126064B2 JP H0126064 B2 JPH0126064 B2 JP H0126064B2 JP 58118083 A JP58118083 A JP 58118083A JP 11808383 A JP11808383 A JP 11808383A JP H0126064 B2 JPH0126064 B2 JP H0126064B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- fur
- fur brush
- housing
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 description 12
- 239000011162 core material Substances 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子写真複写機に用いられるフアー
ブラシクリーニング装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fur brush cleaning device used in an electrophotographic copying machine.
従来技術
フアーブラシクリーニング装置は、複写機本体
内にフアーブラシを感材と対向して配設したもの
であり、長期間使用するとフアーブラシがトナー
で汚れたりするので交換する必要がある。Prior Art A fur brush cleaning device has a fur brush disposed inside the main body of a copying machine so as to face the photosensitive material, and when used for a long period of time, the fur brush becomes dirty with toner and needs to be replaced.
そこで従来は、フアーブラシを複写機本体内に
軸方向に挿入、引き出し自在に装着し、フアーブ
ラシを軸方向に引き出した後に新らしいフアーブ
ラシを交換している。 Conventionally, the fur brush is inserted into the main body of the copying machine in the axial direction and is mounted so that it can be freely pulled out, and after the fur brush is pulled out in the axial direction, a new fur brush is replaced.
このために、トナーで汚れたフアーブラシを引
き出す際にトナーが飛散して複写機内部や、周囲
をトナーで汚すと共に、作業者の手を汚してしま
う等の不具合及びフアーブラシ全体を全長に亘つ
て引き抜き、挿入せねばならないから、その作業
が面倒であるとの不具合を有する。 For this reason, when pulling out the fur brush contaminated with toner, the toner scatters and stains the inside and surroundings of the copying machine, as well as staining the operator's hands. , the operation is troublesome because it has to be inserted.
このことは、フアーブラシが複数ある場合に特
に著しい。 This is particularly noticeable when there are multiple fur brushes.
発明の目的
フアーブラシを交換する際に、トナーが飛散る
ことがないと共に、フアーブラシを容易に着脱で
きるようにすることを目的とする。OBJECTS OF THE INVENTION It is an object of the invention to prevent toner from scattering when replacing a fur brush, and to enable the fur brush to be easily attached and detached.
発明の構成
複写機本体に引き出し、挿入自在に設けたフレ
ーム構造体にハウジングを着脱自在に設け、この
ハウジングにフアーブラシの一端部に嵌合する駆
動ブラシシヤフトを設けると共に、フアーブラシ
の他端部に着脱自在に設けた従動ブラシシヤフト
をハウジングに、軸方向及び径方向に移動自在に
設けたもの。Structure of the Invention A housing is detachably provided on a frame structure that can be pulled out and inserted into the main body of a copying machine, and a drive brush shaft that fits into one end of the fur brush is provided on the housing, and a drive brush shaft that can be attached to and detached from the other end of the fur brush is provided on the housing. A housing with a freely installed driven brush shaft that is movable in the axial and radial directions.
実施例
第１図は全体概略斜視図、第２図は正面図であ
り、複写機本体Ａにはフレーム構造体Ｂがガイド
レールａに沿つて挿入、引き出し自在に設けてあ
り、該フレーム構造体Ｂは一対の縦板状のフレー
ム１，１′を横材２で連結してあると共に、一対
のフレーム１，１′間にはベルト式の感材Ｃとフ
アーブラシクリーニング装置Ｄとが設けてあり、
感材Ｃは複数のローラ３に亘つてベルト感材４を
巻掛けた構造で、フアーブラシクリーニング装置
Ｄは一対のフレーム１，１′間に着脱自在に設け
たハウジング５にフアーブラシ６を設けたもので
ある。Embodiment FIG. 1 is an overall schematic perspective view, and FIG. 2 is a front view. A frame structure B is provided in the main body A of the copying machine so that it can be freely inserted and pulled out along a guide rail a. In B, a pair of vertical plate-shaped frames 1 and 1' are connected by a horizontal member 2, and a belt-type photosensitive material C and a fur brush cleaning device D are provided between the pair of frames 1 and 1'. can be,
The photosensitive material C has a structure in which a belt photosensitive material 4 is wound around a plurality of rollers 3, and the fur brush cleaning device D has a fur brush 6 installed in a housing 5 detachably provided between a pair of frames 1 and 1'. It is something.
７は一方のフレーム１に設けた把手である。 7 is a handle provided on one frame 1.
前記ハウジング５の両端開口部には左右端壁
８，８′が設けてあると共に、両端には左右一対
のサイドプレート９，９′が取付けてあり、前記
フアーブラシ６は筒状の芯材１０にブラシ（つま
り、合成繊維）１１を多数植設したものとなり、
芯材１１の両端にはブラシコア１２，１２′が設
けてある。 Left and right end walls 8, 8' are provided at both end openings of the housing 5, and a pair of left and right side plates 9, 9' are attached to both ends. A large number of brushes (that is, synthetic fibers) 11 are planted,
Brush cores 12 and 12' are provided at both ends of the core material 11.
前記一方の端壁８には第１、第2U字状開口部
１３1，１３2が形成され、他方の端壁８′には第
１、第２駆動ブラシシヤフト１４1，１４2が支承
してあり、第１、第２駆動ブラシシヤフト１４1，
１４2は駆動ギヤ群１５を介し連結され、第１駆
動ブラシシヤフト１４1は駆動軸１６にスプライ
ン嵌合連結してあると共に、第１、第２駆動ブラ
シシヤフト１４1，１４2はブラシコア１２′，１
２′に軸方向に摺動自在に嵌合連結（スプライン
嵌合連結）されている。 First and second U-shaped openings 13 1 and 13 2 are formed in the one end wall 8, and first and second driving brush shafts 14 1 and 14 2 are supported in the other end wall 8'. There are first and second driving brush shafts 14 1 ,
14 2 are connected via a drive gear group 15, the first drive brush shaft 14 1 is connected to the drive shaft 16 by spline fitting, and the first and second drive brush shafts 14 1 and 14 2 are connected to the brush core 12'. ,1
2' so as to be slidably connected in the axial direction (spline fitting connection).
１７はブラシ保持板であり、該ブラシ保持板１
７には第１、第２従動ブラシシヤフト１８1，１
８2が設けられ、該第１、第２従動ブラシシヤフ
ト１８1，１８2はブラシコア１２，１２内に摺動
自在に嵌挿してあると共に、芯材１０の内壁に圧
接した板バネ１９，１９が設けられ、かつコイル
スプリング２０，２０で芯材１０を他方の端壁
８′側に押し動している。 17 is a brush holding plate, and the brush holding plate 1
7 includes first and second driven brush shafts 18 1 , 1
The first and second driven brush shafts 18 1 and 18 2 are slidably inserted into the brush cores 12 and 12, and plate springs 19 and 19 are in pressure contact with the inner wall of the core material 10 . is provided, and the core member 10 is pushed toward the other end wall 8' by coil springs 20, 20.
前記一方の端壁８には複数の係止ピン２１が設
けられ、ブラシ保持板１７には係止ピン２１に係
脱自在なる係止板２２が移動自在に設けられてラ
ツチ機構を構成している。２３は取手である。 The one end wall 8 is provided with a plurality of locking pins 21, and the brush holding plate 17 is movably provided with a locking plate 22 that can be freely engaged with and detached from the locking pins 21 to constitute a latch mechanism. There is. 23 is a handle.
しかして、フアーブラシ６の交換作業は次の様
にして行なう。 Therefore, the replacement work of the fur brush 6 is carried out as follows.
まず、把手７を持つてフレーム構造体Ｂを複写
機本体Ａより引き出し、ハウジング５を一対のフ
レーム１，１′より取り外しする。 First, the frame structure B is pulled out from the copying machine main body A by holding the handle 7, and the housing 5 is removed from the pair of frames 1 and 1'.
この状態でハウジング５を上向又は下向として
置き、係止板２２を矢印方向に移動して係止ピン
２１より離脱させ、取手２３を持つてブラシ保持
板１７を手前に約８mm引き出す。 In this state, place the housing 5 facing upward or downward, move the locking plate 22 in the direction of the arrow to release it from the locking pin 21, and pull the brush holding plate 17 forward by about 8 mm using the handle 23.
この時、一対のフアーブラシ６，６は第１、第
２従動ブラシシヤフト１８1，１８2と板バネ１
９，１９によつてブラシ保持板１７に保持されて
いるので、一対のフアーブラシ６，６はブラシ保
持板１７とともに手前（一方の端壁８側）に移動
し、芯材１０，１０は第１、第2U字状開口部１
３1，１３2内に入り込む。つまり、第１、第2U
字状開口部１３1，１３2は芯材１０，１０より若
干大きくなつている。 At this time, the pair of fur brushes 6, 6 are connected to the first and second driven brush shafts 18 1 , 18 2 and the leaf spring 1.
9 and 19, the pair of fur brushes 6 and 6 move toward the front (towards one end wall 8 side) together with the brush holding plate 17, and the core members 10 and 10 move toward the first end wall 8 side. , second U-shaped opening 1
Enter into 3 1 , 13 2 . In other words, the 1st and 2nd U
The character-shaped openings 13 1 and 13 2 are slightly larger than the core members 10 and 10.
これにより、一対のフアーブラシ６，６のブラ
シコア１２′，１２′が第１、第２駆動ブラシシヤ
フト１４1，１４2より抜け出す。 As a result, the brush cores 12', 12' of the pair of fur brushes 6, 6 come out of the first and second drive brush shafts 14 1 , 14 2 .
この状態で取手２３を持つてブラシ保持板１７
とともに一対のフアーブラシ６，６を真上方向に
傾けながら取り外しする。 In this state, hold the handle 23 and hold the brush holding plate 17.
At the same time, remove the pair of fur brushes 6, 6 while tilting them directly upward.
この後に、フアーブラシ６，６を板バネ１９，
１９に抗して第１、第２従動ブラシシヤフト１８
１，１８2より引き抜き、新らしいフアーブラシ
６，６を板バネ１９，１９に抗して第１、第２従
動ブラシシヤフト１８1，１８2に挿入してブラシ
保持板１７に取付け、この後に前述と反対にして
ハウジング５内に装着し、ハウジング５をフレー
ム構造体Ｂに取付ける。 After this, the fur brushes 6, 6 are attached to the leaf springs 19,
19, the first and second driven brush shafts 18
1 , 18 2 , insert the new fur brushes 6, 6 into the first and second driven brush shafts 18 1 , 18 2 against the leaf springs 19, 19, and attach them to the brush holding plate 17, and then as described above. and the housing 5 is attached to the frame structure B.
この様に、フアーブラシ６を取り外しする際
に、フアーブラシ６に付着したトナーが飛散して
複写機内部、周囲を汚すことがないと共に、手を
汚すこともなく、さらには複写機本体外で取外
し、取付けできるからフアーブラシの交換を容易
に行なうことができる。 In this way, when the fur brush 6 is removed, the toner attached to the fur brush 6 does not scatter and contaminate the inside and surroundings of the copying machine, and also does not stain the hands. Since it can be attached, the fur brush can be easily replaced.
つまり、フアーブラシ６は軸方向に若干引き出
しすれば良いので、従来の様に軸方向全長に亘つ
て引き出しする場合と比較して極めてトナーの飛
散が少なくなると共に、８mm程度の移動量ではフ
アーブラシ６の感材４の非画像領域と対向する部
分の長さに当るために、トナーの付着量も少ない
から、トナー飛散がより少なくなる。 In other words, since the fur brush 6 only needs to be pulled out slightly in the axial direction, toner scattering is extremely reduced compared to the conventional case where the fur brush 6 is pulled out over its entire axial length. Since this corresponds to the length of the portion of the photosensitive material 4 facing the non-image area, the amount of toner adhesion is also small, so toner scattering is further reduced.
また、一対のフアーブラシ６，６を同時に取り
外しできるから、フアーブラシ６，６の取り外し
がより簡単となる。 Further, since the pair of fur brushes 6, 6 can be removed at the same time, the removal of the fur brushes 6, 6 becomes easier.
なお、取付けた状態ではスプリング２０により
押されてブラシコア１２′と第１、第２従動ブラ
シシヤフト１４1，１４2とが確実に嵌合された状
態に保持され、フアーブラシ６を確実に駆動でき
る。 In the attached state, the brush core 12' and the first and second driven brush shafts 14 1 and 14 2 are held in a securely fitted state by being pushed by the spring 20, so that the fur brush 6 can be driven reliably.
なお、フアーブラシクリーニング装置の詳細は
第７図に示すように構成してある。 The details of the fur brush cleaning device are constructed as shown in FIG. 7.
つまり、一対のフアーブラシ６，６′の回転方
向は互いに逆向きで、感材４の移動方向上流側の
フアーブラシ６が感材４と同一方向に払拭作用す
るように、下流側のフアーブラシ６′が逆方向に
払拭作用するようにそれぞれ回転するようになつ
ている。 That is, the rotation directions of the pair of fur brushes 6 and 6' are opposite to each other, and the fur brush 6 on the downstream side in the direction of movement of the photosensitive material 4 acts in the same direction as the photosensitive material 4, so that the fur brush 6 on the upstream side wipes the photosensitive material 4 in the same direction. They are designed to rotate so that they each have a wiping effect in opposite directions.
また、ハウジング５の上壁５ｂには、前記フア
ーブラシ６のブラシ繊維１１に付着したトナー粒
子をはたき落とす役目とブラシ繊維に所望する極
性の電荷を付与する役目を有する金属製のフリツ
カバー３０，３０′が一対固設され、この両フリ
ツカバー３０，３０′の間にハウジング５内に開
口する吸引口３１が設けてある。そしてこの吸引
口３１は流路３２を介してダクト３３に接続して
ある。このダクト３３は真空源を有する集じん装
置にホース（いずれも図示せず）を介して接続し
てある。３４，３４′はハウジング５内壁にトナ
ーが付着、堆積するのを防止するために設けられ
た電界カーテンシート、３５，３５′は感材４と
ハウジング５の両端部との間に空気流速の速いス
リツトを形成させ、ハウジング５内のトナー粒子
がクリーニング装置外に漏洩するのを防止するた
めのオリフイスバツフルである。３６はクリーナ
用コロトロンワイヤ３６ａとコロトロシールド３
６ｂとからなるプレクリーニングコロトロンであ
り、このプレクリーニングコロトロン３６より
400Hz、0.09〜0.23μA・sec／cm2のACコロナ照射
と0.046μA・sec／cm2のプラスDCコロナ照射がな
され、これにより像担持体１上の残留トナー像が
クリーニングされやすいように処理されるように
なつている。また上記一対のフリツカバー３０，
３０′のうち、感材４の移動方向の上流側に位置
するフアーブラシ６に接触する上流側のフリツカ
バー３０にはマイナス3KVの、また下流側のフ
リツカバー３０′にはプラス3KVの直流電圧がそ
れぞれ印加されている。なお上記印加電流の極性
は感材４がＰ型半導体よりなる場合には逆にす
る。 Further, on the upper wall 5b of the housing 5, metal frit covers 30, 30' are provided which have the function of brushing off toner particles adhering to the brush fibers 11 of the fur brush 6 and imparting a desired polar charge to the brush fibers. A suction port 31 opening into the housing 5 is provided between the frit covers 30 and 30'. This suction port 31 is connected to a duct 33 via a flow path 32. This duct 33 is connected via a hose (none of which is shown) to a dust collector having a vacuum source. Reference numerals 34 and 34' refer to electric field curtain sheets provided to prevent toner from adhering and accumulating on the inner wall of the housing 5, and 35 and 35' refer to electric field curtain sheets provided to prevent toner from adhering and accumulating on the inner wall of the housing 5; This is an orifice baffle that forms a slit to prevent toner particles inside the housing 5 from leaking out of the cleaning device. 36 is a corotron wire 36a for the cleaner and a corotron shield 3
6b, and from this precleaning corotron 36
AC corona irradiation at 400 Hz and 0.09 to 0.23 μA·sec/cm 2 and plus DC corona irradiation at 0.046 μA·sec/cm 2 are performed to make the residual toner image on the image carrier 1 easier to clean. It is becoming more and more common. In addition, the pair of fritz covers 30,
A DC voltage of -3 KV is applied to the frit cover 30 on the upstream side that contacts the fur brush 6 located upstream in the moving direction of the photosensitive material 4, and a DC voltage of +3 KV is applied to the frit cover 30' on the downstream side. has been done. Note that the polarity of the applied current is reversed when the sensitive material 4 is made of a P-type semiconductor.
上記フアーブラシクリーニング装置にあつて
は、感材４上に残留した未転写トナー像はプレク
リーニングコロトロン３６よりコロナ照射を受け
てクリーニングされやすい状態に処理された後、
クリーニング装置内で上記未転写トナー像は回転
するフアーブラシ６，６′の払拭作用及び電気的
吸引力により、すなわち、プレクリーニングコロ
トロン３６でプラスに帯電したトナーのクリーニ
ングは、マイナスに帯電した上流側のフアーブラ
シ６で除去され、またこの上流側のフアーブラシ
６で除去されなかつた逆極性のトナーは、プラス
に帯電された下流側のフアーブラシロール６′で
除去される。そしてこの除去されたトナーは空気
中に飛散し、真空源にて吸引口３１、流路３２、
ダクト３３、ホースを経て集じん装置（図示せ
ず）に達し、ここでトナーと空気が分離される。 In the fur brush cleaning device, the untransferred toner image remaining on the photosensitive material 4 is treated with corona irradiation from the pre-cleaning corotron 36 to make it easier to clean.
In the cleaning device, the untransferred toner image is cleaned by the wiping action of the rotating fur brushes 6, 6' and the electric suction force, that is, the positively charged toner is cleaned by the pre-cleaning corotron 36, and the toner image is cleaned by the negatively charged upstream side. Toner of opposite polarity that is removed by the fur brush 6 on the upstream side and not removed by the fur brush 6 on the upstream side is removed by the positively charged fur brush roll 6' on the downstream side. The removed toner is then scattered into the air, and a vacuum source is applied to the suction port 31, flow path 32,
A dust collector (not shown) is reached through a duct 33 and a hose, where the toner and air are separated.
発明の効果
フアーブラシを交換する際に、トナーが飛散す
ることがなくて複写機内部や周囲を汚すことがな
いと共に、フアーブラシを容易に着脱できて短時
間で交換できる。Effects of the Invention When replacing the fur brush, the toner does not scatter and the inside and surroundings of the copying machine are not contaminated, and the fur brush can be easily attached and detached so that it can be replaced in a short time.
図面は本発明の実施例を示し、第１図は全体概
略斜視図、第２図は正面図、第３図はフアーブラ
シ取付部の断面図、第４図は側面図、第５図は第
３図のＶ―Ｖ線断面図、第６図は分解した状態の
斜視図、第７図はフアーブラシクリーニング装置
の詳細断面説明図である。
Ａは複写機本体、Ｂはフレーム構造体、Ｃは感
材、Ｄはフアーブラシクリーニング装置、５はハ
ウジング、６はフアーブラシ、１４1，１４2は駆
動ブラシシヤフト、１８1，１８2は従動ブラシシ
ヤフト。
The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic perspective view of the entire structure, Fig. 2 is a front view, Fig. 3 is a sectional view of the fur brush attachment part, Fig. 4 is a side view, and Fig. 5 is a third sectional view. FIG. 6 is an exploded perspective view, and FIG. 7 is a detailed sectional view of the fur brush cleaning device. A is the copying machine body, B is the frame structure, C is the photosensitive material, D is the fur brush cleaning device, 5 is the housing, 6 is the fur brush, 14 1 and 14 2 are the driving brush shafts, and 18 1 and 18 2 are the driven brushes. Shaft.
Claims (1)
フレーム構造体Ｂに感材Ｃを設けると共に、該フ
レーム構造体Ｂにフアーブラシ６を備えたハウジ
ング５を着脱自在に設け、該ハウジング５に、フ
アーブラシ６の一端部に嵌合する駆動ブラシシヤ
フト１４1，１４2を設け、フアーブラシ６の他端
部に着脱自在に設けた従動ブラシシヤフト１８1，
１８2を、前記ハウジング５に軸方向及び径方向
に移動自在に設けると共に、該従動シヤフト１８
１，１８2をハウジング５に固定する手段を設けた
ことを特徴とする電子写真複写機のフアーブラシ
クリーニング装置。1. A photosensitive material C is provided on a frame structure B that can be pulled out and inserted into the copying machine main body A, and a housing 5 equipped with a fur brush 6 is detachably provided on the frame structure B. Driving brush shafts 14 1 , 14 2 fitted to one end of the fur brush 6 are provided, and driven brush shafts 18 1 , detachably provided to the other end of the fur brush 6 .
18 2 is provided in the housing 5 so as to be movable in the axial and radial directions, and the driven shaft 18
1 , 18 2 to a housing 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58118083A JPS6011866A (en) | 1983-07-01 | 1983-07-01 | Fur brush cleaning device of electrophotography copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58118083A JPS6011866A (en) | 1983-07-01 | 1983-07-01 | Fur brush cleaning device of electrophotography copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6011866A JPS6011866A (en) | 1985-01-22 |
| JPH0126064B2 true JPH0126064B2 (en) | 1989-05-22 |
Family
ID=14727571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58118083A Granted JPS6011866A (en) | 1983-07-01 | 1983-07-01 | Fur brush cleaning device of electrophotography copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6011866A (en) |
-
1983
- 1983-07-01 JP JP58118083A patent/JPS6011866A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6011866A (en) | 1985-01-22 |
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