JPS62265680A - Electronic printing device - Google Patents
Electronic printing deviceInfo
- Publication number
- JPS62265680A JPS62265680A JP61108920A JP10892086A JPS62265680A JP S62265680 A JPS62265680 A JP S62265680A JP 61108920 A JP61108920 A JP 61108920A JP 10892086 A JP10892086 A JP 10892086A JP S62265680 A JPS62265680 A JP S62265680A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- toner
- discharge
- developing device
- blower
- 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
- 238000007639 printing Methods 0.000 title description 5
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概要〕
現像器をプリンタ装置に搭載したま＼で、現像器の底部
を開き、古い現像剤を落下させて交換する際、飛散する
トナーをトナー回収系のブロアで吸うように、前記底部
近傍の装置筐体に空気流路を設けて、トナーの飛散を防
止する。[Detailed Description of the Invention] [Summary] When replacing the developing device by opening the bottom of the developing device and dropping the old developer while it is installed in a printer device, the toner that is scattered is removed by the blower of the toner collection system. An air flow path is provided in the device casing near the bottom to prevent toner from scattering.
本発明は電子写真記録方式を用いた電子プリンタ装置に
関する。The present invention relates to an electronic printer device using an electrophotographic recording method.
情報処理装置の発展に伴い、その出力手段であるプリン
タの性能も向上し、より多くの情報を高速に出力する為
、電子写真記録方式の電子プリンタ装置が用いられてい
る。With the development of information processing devices, the performance of printers, which are their output means, has also improved, and electronic printer devices using electrophotographic recording methods are being used to output more information at high speed.
電子プリンタ装置は、感光体上に形成した潜像をトナー
とキャリアから成る２成分現像剤で現像しており、長期
間使用するとキャリアが劣化し寿命となるので、現像剤
を交換する必要がある。Electronic printers develop the latent image formed on the photoreceptor using a two-component developer consisting of toner and carrier. After long-term use, the carrier deteriorates and reaches the end of its lifespan, so the developer must be replaced. .
現像剤を交換する時、トナーが飛散し易い。その為、ト
ナーが飛散することなく交換できるものが望まれている
。Toner tends to scatter when replacing the developer. Therefore, a device that can be replaced without toner scattering is desired.
従来、電子プリンタ装置は例えば第５図に示すように、
感光ドラム（感光体）１上を帯電器２により帯電させた
後、情報データにより露光３を行い、感光ドラムｌ上に
潜像を形成し、該潜像を現像器４により現像し、該トナ
ー像を転写器５により用紙６に転写した後、定着器７に
より定着する。Conventionally, electronic printer devices, for example, as shown in FIG.
After the photosensitive drum (photoreceptor) 1 is charged by a charger 2, exposure 3 is performed based on information data to form a latent image on the photosensitive drum l, and the latent image is developed by a developer 4, and the toner is After the image is transferred onto paper 6 by transfer device 5, it is fixed by fixing device 7.
−力感光ドラム１上に残留したトナーは、除電器８と除
電ランプ９で除電され、その後クリーナ１０でクリーニ
ングされ、次の印字サイクルに入る構成である。- The toner remaining on the photosensitive drum 1 is neutralized by a static eliminator 8 and a static eliminator 9, and then cleaned by a cleaner 10 before entering the next printing cycle.
上記現像器４の詳細を第６図に示す。現像器４内のトナ
ーとキャリアから成る現像剤Ａは、攪拌ローラ１１にて
攪拌され、攪拌ローラ１１と同期して回転する現像ロー
ラ１２の磁力によって、現像ローラ１２の上に穂を形成
する。この時、穂の高さはブレード１３により規制され
て、感光ドラム１上の静電潜像を現像する。Details of the developing device 4 are shown in FIG. The developer A consisting of toner and carrier in the developing device 4 is stirred by the stirring roller 11 and forms spikes on the developing roller 12 by the magnetic force of the developing roller 12 which rotates in synchronization with the stirring roller 11 . At this time, the height of the ears is regulated by the blade 13, and the electrostatic latent image on the photosensitive drum 1 is developed.
現像を終えた現像剤は、掻落し板１４によって掻落され
、再び攪拌ローラ１１によって攪拌され、次のサイクル
に備える。The developer that has been developed is scraped off by the scraping plate 14 and stirred again by the stirring roller 11 in preparation for the next cycle.
トナー容器１５によってトナー溜め１６に蓄えられたト
ナーは、印字濃度の制御回路の指示により、トナー補給
軸１７を介して適宜補給される。The toner stored in the toner reservoir 16 by the toner container 15 is appropriately replenished via a toner replenishment shaft 17 according to instructions from a print density control circuit.
こうしたサイクルの繰返しによって現像剤Ａは、疲労す
るので交換される。By repeating these cycles, the developer A becomes exhausted and must be replaced.
通常の印刷時、現像器４は現像器支持軸１８が支持レー
ル１９に、ベアリング２０がカム２１に夫＼係合し支持
されている。現像剤Ａ排出時は、セットレバ−２２を操
作してカム２１を回転させることで、現像器４全体を現
像器支持軸１８の回りに、僅かに矢印ａのように回転さ
せリリース状態とする。During normal printing, the developing device 4 is supported with the developing device support shaft 18 engaged with the support rail 19 and the bearing 20 engaged with the cam 21. When discharging the developer A, by operating the set lever 22 and rotating the cam 21, the entire developer 4 is rotated slightly around the developer support shaft 18 in the direction of arrow a, and is brought into a released state.
その後、現像剤Ａを排出する底蓋（以下現像剤排出フタ
）２３を、連結している排出レバー２４を回転して開き
、現像剤Ａを現像剤排出ガイドに上に落とし、装置筺体
２５下部の容器２６へ収容する。After that, open the bottom lid (hereinafter referred to as developer discharge lid) 23 for discharging the developer A by rotating the connected discharge lever 24, and drop the developer A upward onto the developer discharge guide, and move the bottom lid 23 to the lower part of the device housing 25. It is stored in the container 26 of.
現像器４内の現像剤Ａを構成するキャリアは、循環され
て繰返し使用されるので疲労する。寿命となったキャリ
アは帯電量が低下し、トナーを保持する力が弱まってお
り、トナーは飛散し易い状況にある。The carrier constituting the developer A in the developing device 4 is circulated and used repeatedly, so it becomes fatigued. When the carrier reaches the end of its lifespan, the amount of charge on the carrier has decreased, the ability to hold toner has weakened, and the toner is likely to scatter.
従来の現像剤の交換方法は、現像剤Ａを落下により排出
し箱状の容器２６に収容するが、上述のようにトナーが
飛散し易いので、現像器周辺が著しく汚染され一更に光
学系、高圧系等を汚染する原因にもなっていた。その為
、印字品質を悪くすると云う問題があった。 ゛
。In the conventional developer replacement method, the developer A is discharged by falling and stored in the box-shaped container 26, but as mentioned above, the toner tends to scatter, so the area around the developer is significantly contaminated, and furthermore, the optical system, It also caused contamination of high-pressure systems, etc. Therefore, there was a problem that the print quality deteriorated.゛
.
本発明の目的は、かかる問題点を解決することにある。An object of the present invention is to solve such problems.
。.
第１図は本発明の原理図であって、
現像器４の底部には、現像剤Ａを排出する為の現像剤排
出フタ２３がある。 一本発明では、感光ド
ラム１を清掃するクリーナ９で発生ずるトナー゛及び定
着器で発生ずるガスを吸入する為の、ブロア２９による
エア流を利用した空気の流路りを、現像剤排出口Ｃの近
傍の装置筐体２５内に配置する。FIG. 1 is a diagram showing the principle of the present invention. At the bottom of the developing device 4, there is a developer discharge lid 23 for discharging the developer A. According to the present invention, an air flow path using an air flow by a blower 29 for sucking toner generated by the cleaner 9 that cleans the photosensitive drum 1 and gas generated by the fixing device is provided at the developer discharge port. It is placed in the device housing 25 near C.
なお、Ｉ（は排出した現像剤へを容器２６へ送り込む現
像剤排出ガイドである。Note that I( is a developer discharge guide that sends the discharged developer to the container 26.
即ち、まず現像剤排出フタ２３を開き、現像“器４内の
現像剤Ａを落下し容器２６に収容する。この時現像剤排
出路Ｅ中の浮遊しているトナーがブロア２９により吸引
され、空気の流路りに吸い込まれる。That is, first, the developer discharge lid 23 is opened, and the developer A in the developer container 4 is dropped and stored in the container 26. At this time, the floating toner in the developer discharge path E is sucked by the blower 29, It gets sucked into the air flow path.
第２図（イ）（ロ）は本発明の１実施例を示し、なおミ
全図を通じて同一符号は同一部分を示す。2(a) and 2(b) show one embodiment of the present invention, and the same reference numerals indicate the same parts throughout the figures.
図において、通常の印刷時、現像器４は現像器支持軸１
８が装置側の支持レール１９に、現像器側ベアリング２
０が装置側のカム２１に夫々支えられる。In the figure, during normal printing, the developing device 4 is connected to the developing device support shaft 1.
8 is the support rail 19 on the device side, and the developing device side bearing 2
0 are respectively supported by cams 21 on the device side.
該カム２１はセットレバ−２２に連結され、セットレバ
−２２の操作でカム２１が回転し、第２図（ロ）の矢印
ａのように、現像器４全体が現像器支持軸１８を支点に
僅か回転し、現像器４を傾ける。The cam 21 is connected to a set lever 22, and when the set lever 22 is operated, the cam 21 rotates, and as shown by arrow a in FIG. Rotate and tilt the developing device 4.
これは、現像剤Ａを排出する際に現像ローラ１２上に付
着している現像剤Ａをスクレーパ４０にて除去する為、
回転していない感光ドラム１上の同−箇゛所に磁気ブラ
シが摺る状態となり、ドラムに傷付きが発生するからで
ある。This is because the developer A attached to the developing roller 12 is removed by the scraper 40 when the developer A is discharged.
This is because the magnetic brush will rub against the same location on the photosensitive drum 1, which is not rotating, and the drum will be damaged.
現像器４の底部には、現像剤Ａの排出口Ｃを閉じる現像
剤排出フタ２３があり、該現像剤排出フタ２３と排出レ
バー２４は連結していて、排出レバー２４を第２図（ロ
）のように下方へ回転し、現像剤排出フタ２３を開くこ
とにより、現像剤Ａは現像剤排出ガイドに上を落下し容
器２６に収容される。この時、トナーは１．現像剤排出
路Ｅ中で飛散、浮遊している。この飛散しているトナー
空気を吸い込む為に、現像剤の排出口Ｃ近傍の装置筐体
内で、既設のブロアによるクリーニング系、定着系の空
気の流れを利用し、その空気の流れを厚く通路りを、現
像剤排出径路Ｅを内包するように設ける。さらに、該通
路りと現像剤排出路Ｅを遮断するシャッタ３０を設ける
。即ち現像剤交換時はプリンタ全体を停止しているため
、クリーニング系等は動作しておらず、吸引力等の低下
があっても何ら問題ないため、シャッタ３０を開放する
と共に、ブロア２９を動作させるのみで良い。３１はシ
ャッタ３０の回転軸、３２はパツキンを示す。なお、現
像器４の内部の構造は従来と同じであるので、説明を省
略する。At the bottom of the developing device 4, there is a developer discharge lid 23 that closes the developer A discharge port C. The developer discharge lid 23 and the discharge lever 24 are connected. ), and by opening the developer discharge lid 23, the developer A falls onto the developer discharge guide and is stored in the container 26. At this time, the toner is 1. The developer is scattered and floating in the developer discharge path E. In order to suck in this scattered toner air, the air flow from the cleaning system and fixing system using the existing blower is used inside the device housing near the developer outlet C, and the air flow is routed through a thick passage. is provided so as to enclose the developer discharge path E. Further, a shutter 30 is provided to block the passageway from the developer discharge path E. In other words, since the entire printer is stopped when replacing the developer, the cleaning system etc. are not operating, and there is no problem even if the suction power etc. decreases, so the shutter 30 is opened and the blower 29 is operated. Just let it happen. 31 is a rotating shaft of the shutter 30, and 32 is a gasket. Note that the internal structure of the developing device 4 is the same as the conventional one, so a description thereof will be omitted.
第３図に上記空気の流れを、第４図にシャッタ開閉のシ
ーフェンスを夫＼示す。プリンタの通常の印刷時は、ク
リーナ９及び定着器７の空気が、第３図のようにフィル
タ３１．３２を介しブロア２９により排出される。この
時はシャッタ３０が閉じられているが、現像器４がカム
により下り、排出レバー２４により現像剤排出フタ２３
を開き、該排出フタ２３が開かれたことを検出スイッチ
′ｒが検知して、シャッタ３０が開かれる。また、この
時排出を容易にする為に、攪拌ローラ１１及び現像ロー
ラ１２のＯＮとブロア２９のＯＮを同期する構成とする
。Figure 3 shows the above air flow, and Figure 4 shows the sea fence when the shutter opens and closes. During normal printing of the printer, the air in the cleaner 9 and fixing device 7 is discharged by the blower 29 through filters 31 and 32, as shown in FIG. At this time, the shutter 30 is closed, but the developer 4 is lowered by the cam, and the developer discharge lid 23 is opened by the discharge lever 24.
The detection switch 'r detects that the discharge lid 23 is opened, and the shutter 30 is opened. Further, in order to facilitate discharge at this time, the configuration is such that the turning on of the stirring roller 11 and the developing roller 12 and the turning on of the blower 29 are synchronized.
このように現像ローラ１２の回転と、空気の流れを起こ
すブロア２９の回転を同期することで、シャッタ３０を
開きブロア２９による空気の流れで、飛散するトナーを
吸引することができる。In this way, by synchronizing the rotation of the developing roller 12 with the rotation of the blower 29 that causes the air flow, the shutter 30 is opened and the air flow generated by the blower 29 can suck the scattered toner.
以上説明したように本発明によれば、現像器の現像剤排
出口の近くに、ブロアのエアの流れを配置することで、
現像剤排出時の飛散トナーを回収して、付近の汚れを防
止することを可能とした。As explained above, according to the present invention, by arranging the air flow of the blower near the developer discharge port of the developing device,
This makes it possible to collect scattered toner when the developer is discharged and prevent stains in the vicinity.
第１図は本発明の詳細な説明する図、
第２図（イ）（ロ）は本発明の詳細な説明する図、
第３図は本発明の空気の流れを示す図、第４図は本発明
のシャッタ開閉のシーフェンスを示す図、
第５図は電子プリンタ装置を説明する図、第６図は従来
の現像器部分を説明する図である。
図に於いて、
１は感光ドラム、
４は現像器、
９はクリーナ、
１２は現像ローラ、
１８は現像器支持軸、
１９は支持レール、
２０はベアリング、
２１はカム、
２３は現像剤排出フタ、
２５は装置筐体、
２６は容器、
ギ肴キ子Ｉ＊
２８はシャッタ、
（イ）
乏Ｆ’づ１≦ロｊイσ）夕句ミネくＥ４タリ哨盲シε明
′マ゛るｔ日１茎２図
（口ン
ネ６図Fig. 1 is a diagram explaining the present invention in detail, Fig. 2 (a) and (b) are diagrams explaining the present invention in detail, Fig. 3 is a diagram showing the air flow of the present invention, and Fig. 4 is FIG. 5 is a diagram illustrating an electronic printer device, and FIG. 6 is a diagram illustrating a conventional developing unit. In the figure, 1 is a photosensitive drum, 4 is a developing device, 9 is a cleaner, 12 is a developing roller, 18 is a developing device support shaft, 19 is a support rail, 20 is a bearing, 21 is a cam, and 23 is a developer discharge lid. , 25 is the device casing, 26 is the container, 28 is the shutter, (a) F'zu1≦Lojiσ) Yuku Mineku E4 Tari sentinel εbright'mi t day 1 stem 2 figures (kutonne 6 figures
Claims (1)
と、該排出口（Ｃ）を開閉する手段を持つ底蓋（２３）
と、該排出口（Ｃ）より排出された現像剤を収容する容
器（２６）と該排出口（Ｃ）から前記現像剤を収容する
容器（２６）にいたる現像剤排出路（Ｅ）と、前記現像
剤排出路（Ｅ）からブロア（２９）に通じる空気流路（
Ｄ）とを備えたことを特徴とする電子プリンタ装置。A discharge port (C) for discharging the developer at the bottom of the developing device (4)
and a bottom lid (23) having means for opening and closing the outlet (C).
a container (26) for storing the developer discharged from the discharge port (C); and a developer discharge path (E) leading from the discharge port (C) to the container (26) for storing the developer; An air flow path () leading from the developer discharge path (E) to the blower (29)
D) An electronic printer device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108920A JPH0721677B2 (en) | 1986-05-13 | 1986-05-13 | Electronic printer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108920A JPH0721677B2 (en) | 1986-05-13 | 1986-05-13 | Electronic printer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62265680A true JPS62265680A (en) | 1987-11-18 |
| JPH0721677B2 JPH0721677B2 (en) | 1995-03-08 |
Family
ID=14496998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61108920A Expired - Lifetime JPH0721677B2 (en) | 1986-05-13 | 1986-05-13 | Electronic printer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721677B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005092022A (en) * | 2003-09-19 | 2005-04-07 | Ricoh Co Ltd | Developing device, process cartridge, and image forming apparatus |
| JP2006258860A (en) * | 2005-03-15 | 2006-09-28 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2007102065A (en) * | 2005-10-07 | 2007-04-19 | Fuji Xerox Co Ltd | Image forming apparatus |
-
1986
- 1986-05-13 JP JP61108920A patent/JPH0721677B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005092022A (en) * | 2003-09-19 | 2005-04-07 | Ricoh Co Ltd | Developing device, process cartridge, and image forming apparatus |
| JP2006258860A (en) * | 2005-03-15 | 2006-09-28 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2007102065A (en) * | 2005-10-07 | 2007-04-19 | Fuji Xerox Co Ltd | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0721677B2 (en) | 1995-03-08 |
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