JPS62134654A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS62134654A JPS62134654A JP60274989A JP27498985A JPS62134654A JP S62134654 A JPS62134654 A JP S62134654A JP 60274989 A JP60274989 A JP 60274989A JP 27498985 A JP27498985 A JP 27498985A JP S62134654 A JPS62134654 A JP S62134654A
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- photosensitive drum
- image forming
- frame
- cam
- 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
Links
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
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1807—Arrangements or disposition of the complete process cartridge or parts thereof colour
-
- 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
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
- G03G21/1623—Means to access the interior of the apparatus
- G03G21/1628—Clamshell type
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1603—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for multicoloured copies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1678—Frame structures
- G03G2221/1687—Frame structures using opening shell type machines, e.g. pivoting assemblies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/18—Cartridge systems
- G03G2221/183—Process cartridge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の１１Ｔ網な説明
° −１−の ■１ １ ノ） デゞ本発明は、複
写機、プリンター笠の画像形成装置に関し、特に像担持
体の周囲に沿って潜像形成「９段及び２個以にの現像装
置を有しマルチカラー又はフルカラーの多色の画像を形
成する多色画像形成装置に関するものである。以ドの説
明は電ｒ−写５ｊ’複写装置に関連して説明するが、本
発明はこれに限定されない。Detailed Description of the Invention 3. 11T General Description of the Invention° -1-■1 1) The present invention relates to an image forming device for a copying machine or a printer shade, and particularly relates to an image forming apparatus for a copying machine or a printer shade. This invention relates to a multicolor image forming apparatus that has nine stages and two or more developing devices and forms a multicolor or full-color image. 'Although described in relation to a copying device, the present invention is not limited thereto.
【え立且遣
近イ１゛、画像形成装置の一種である電ｒ写真複写装置
（以ド［複写装置Ｊという。）は５機能の多用化に伴い
従来の黒トナーによる複′Ｉｊ：だけでなく１．′、゛
、赤、緑゛９の多色トナーによる複写もｌ１１７剋とさ
れる。[In recent years, the electrophotographic copying machine (hereinafter referred to as copying machine J), which is a type of image forming apparatus, has become more versatile with five functions. Not 1. Copying using multicolor toners of ', ', red, and green '9 is also considered to be 1117.
斯る複写装置は、大別すると、各色の現像装置を交換す
ることにより各色の複写を行なう方式。Such copying apparatuses can be roughly divided into types that copy each color by replacing the developing devices for each color.
又は装置内に複数の現像器を備え任、この現像器を逍択
して使用する方式があるが、最近では１゛１動両面、多
Φ複写笠の機構の汗及に伴って、後者の方式に従ったも
のが多く、複写装置本体内に色の異なるトナーを有する
現像装置を２個以ｌ―備え、操ｆ’＋部での筒中なボタ
ン操作だけで異なる色の複写を可能として筒型に一枚の
複写紙トに多色の複写ができるように構成されている。Alternatively, there is a method in which the device is equipped with multiple developing devices and these developing devices are selected and used, but recently, with the development of 1/1 moving double-sided, multi-Φ copying shade mechanisms, the latter method has become more popular. Most of the copying devices are equipped with two or more developing devices containing toner of different colors in the main body of the copying device, and the cylinder is designed to make it possible to copy different colors by simply pressing a button inside the cylinder at the operation section f'+. The mold is constructed so that multicolor copies can be made on a single sheet of copy paper.
従来のこの種の複′す°装置の一例が第５図に例示され
る。本例において、原稿ガラス１！−に置かれた原稿２
は、ランプ３により１にすＪｌされ、その光像は反射ミ
ラー４〜９及びレンズ１０により構成される光学系によ
り像■１持体、即ち本例にては電子写真感光トラム１１
１−へ導かれる。ランプ３及びミラー４．５．６は矢印
方向へ所定速１■で原稿２を走査する。・方、矢印方向
へと回転するも光ドラム１１には帯電器１２によりその
表面に均一な帯電が施され１次いで光像が照射されるこ
とにより感光ドラム表面には順次原稿像と対応する静電
像が形成される。An example of a conventional multiplex device of this type is illustrated in FIG. In this example, original glass 1! - Manuscript 2 placed in
is reduced to 1 by the lamp 3, and the light image is transferred to an image carrier, that is, an electrophotographic photosensitive tram 11 in this example, by an optical system composed of reflecting mirrors 4 to 9 and a lens 10.
It leads to 1-. The lamp 3 and the mirror 4.5.6 scan the original 2 at a predetermined speed of 1 in the direction of the arrow. On the other hand, as the optical drum 11 rotates in the direction of the arrow, the surface of the optical drum 11 is uniformly charged by the charger 12, and then a light image is irradiated on the surface of the photosensitive drum, so that static images corresponding to the original image are sequentially formed on the surface of the photosensitive drum. An electric image is formed.
感光ドラム１１の周辺には、赤、＋’； Ｔ’の色トナ
ーを収納した色現像器１３、黒トナーを収納した黒現像
器１４が配設される。これらの現像器１３．１４はそれ
ぞれ矢印方向に５つまり感光トラムに近接した現像作動
位置と感光ドラムから離間した現像不作動位置との間で
移動できるようになっており、所ｔｌＩの色画像に応じ
て感光ドラム１１に近接し感光ドラム１１１−の静゛市
像を顕画化する。第５図では、色現像器１３が離れ黒現
像器１４が近接しているので感光ドラム１１上には黒画
像が形成される。Around the photosensitive drum 11, a color developer 13 containing red, +';T' color toners and a black developer 14 containing black toner are arranged. These developing units 13 and 14 are movable in the direction of the arrow 5, that is, between a developing operating position close to the photosensitive drum and a developing non-operating position spaced apart from the photosensitive drum. In response, it approaches the photosensitive drum 11 and develops the still image on the photosensitive drum 111-. In FIG. 5, the color developer 13 is far away and the black developer 14 is close, so a black image is formed on the photosensitive drum 11.
感光ドラム１１．１１の黒画像は、転写帯電器１５によ
り転写紙１７へ転写され、その後感光ドラム１１はクリ
ーニング器１６に達し表面の残留トナーが除去され次の
Ｆ程へ移る。転写紙１７は、カセツ）１８内に収納され
ており給紙ローラ１９により１枚だけ送り出される。こ
の転′ダ紙１７はガイド２１．２２に沿いレジストロー
ラ対２０へ導かれる。The black image on the photosensitive drum 11.11 is transferred to the transfer paper 17 by the transfer charger 15, and then the photosensitive drum 11 reaches the cleaning device 16 to remove the residual toner on the surface and move on to the next step F. The transfer paper 17 is stored in a cassette 18, and only one sheet is sent out by a paper feed roller 19. This transfer paper 17 is guided along guides 21, 22 to a pair of registration rollers 20.
レジストローラ対２０は感光ドラム１１にの顕画像と転
写紙１７が一致するタイミングをとって回転を始め転写
１；ガイド２３、転写下ガイド２４を介して転写紙１７
を感光トラム１１表面へ送り込む。そして、前述のよう
に転写紙１７は転写帯゛重器１５により感光ドラム１１
トのトナー像が転写された後、分離帯゛改憲２５により
感光ドラム１１表面から分離され搬送部２６により定１
１器２７へ４かれる。定着器２７で転写紙１７１：のト
ナー像は永久画像として定７１され排紙ローラ対２８に
より拮紙トレイ１−へ排出される。又、複写装置は所９
１の色画像に応じた現像器１３．１４の移動を行なうた
めに、各現像器１３．１４を加圧するカム３０，３１．
１該カム３０．３１を駆動する駆動機構（図・Ｉミせず
）、加圧バネ３２．３３及び戻しバネ３４．３５を具備
する。The registration roller pair 20 starts rotating at the timing when the developed image on the photosensitive drum 11 and the transfer paper 17 coincide, and transfers the image onto the transfer paper 17 via the guide 23 and the lower transfer guide 24.
is sent to the surface of the photosensitive tram 11. Then, as described above, the transfer paper 17 is transferred to the photosensitive drum 11 by the transfer band overlapping device 15.
After the toner image has been transferred, it is separated from the surface of the photosensitive drum 11 by a separation band 25, and then transferred to a fixed position 1 by a conveyance section 26.
4 to 1 vessel 27. The toner image on the transfer paper 171 is fixed 71 as a permanent image in the fixing device 27, and is discharged to the second paper tray 1- by a pair of paper discharge rollers 28. Also, the copying machine is located at 9.
Cams 30, 31 .
1. A drive mechanism (not shown in the figure) for driving the cam 30.31, a pressure spring 32.33, and a return spring 34.35 are provided.
仝１が しようと る１５１１０点
しかしながら、に記従来の４Ｘｌｉ成では感光ドラムの
交換やメインテナンスの際には現像器と感光ドラムの接
触による感光ドラム表面の損傷を防１トするために、各
現像器を感光ドラムより離間させる必要があり、従って
カム、クラッチ等の離間機構が必要となり複写装置が大
型化する問題があった。However, in the conventional 4Xli configuration, when replacing or maintaining the photosensitive drum, in order to prevent damage to the surface of the photosensitive drum due to contact between the developing device and the photosensitive drum, it is necessary to It is necessary to separate the device from the photosensitive drum, and therefore a separating mechanism such as a cam or a clutch is required, resulting in the problem of an increase in the size of the copying apparatus.
え」［囚」し頂
本発明は、ｌ二足の問題に鑑みな５れたもので、その目
的は現像器を像担持体から離間させる機構を省略化する
ことにより装置の大型化を防＋ｌ−するとともに、像担
持体の交換、メインテナンスの筒易化を図った画像形成
装置を提供することにある。The present invention was developed in view of the problem of two feet, and its purpose is to prevent the device from becoming larger by omitting the mechanism that separates the developing device from the image carrier. It is an object of the present invention to provide an image forming apparatus in which replacement of an image carrier and maintenance are facilitated.
１５＋１０占 るための１゛−没ト記］１的は未
発１夛１に係る画像形成’Ａ置にて達成される。要約す
れば、本発明は、像担持体に沿って帯電器及びクリーニ
ング器等の潜像形成り段並びに複数の現像器を備えた画
像形成装置において、少なくとも１ｔｉ記像担像担持び
１個の前記現像器を、装置本体に対し１１脱自在に設け
られた１個の枠体内に設置したことを特徴とする画像形
成装置である。15+10 Divination] The first goal is achieved in the image formation 'A' position related to the unreleased 1 piece 1. To summarize, the present invention provides an image forming apparatus including a latent image forming stage such as a charger and a cleaning device along an image carrier, and a plurality of developing devices. The image forming apparatus is characterized in that the developing device is installed in one frame that is removably provided in the apparatus main body.
以ド、未発ＩＩをその一実施例である電子写真複写装置
を示すＸＪ′ｓ １図〜第３図を参照して説明する。該
装置は、前記第５図を８照して説明した従来の複写装置
と概略同様の構成とされ１本実施例では前述の従来例と
同−又は均等の部位、部材については同一の符号を付し
その説明を省略する。Hereinafter, the unissued II will be explained with reference to FIGS. This apparatus has a similar structure to the conventional copying apparatus described above with reference to FIG. and the explanation thereof will be omitted.
本実施例において、複写装置は、特に第３図に明瞭に図
示されるように、ヒンジ５０を介して連ム一されるドユ
ニ゛ント５１とｌ−ユニット５２とを備え、これらユニ
ット５１．５２はバネ機構及びストッパ一部材（共に図
示せず）により離間する方向に付勢されるとともに、ｌ
−ユニット５２を下ユニツト５１側へと押圧すれば下ユ
ニット５１に係市するように構成される。In this embodiment, the reproduction apparatus comprises a du unit 51 and an l-unit 52, which are joined together via a hinge 50, as shown particularly clearly in FIG. is biased in the direction of separation by a spring mechanism and a stopper member (both not shown), and
- It is configured to engage the lower unit 51 by pressing the unit 52 toward the lower unit 51.
色現像器１３は）下ユニット５２に設置され、４色現像
器１３はその外側に設けたカム３０、加圧バネ３２．戻
しバネ３４により感光ドラム１１に夕４し従来周知の方
法で接離自在とされる。更に又、第２図に図示されるよ
うに１．ａ色現像器１３には一ド部にラック１３ｂを有
するレール１３ａが一体的に取付けられており、該ラッ
ク１３ｂは後述する枠体４０に回転自在に軸支したギヤ
３７と噛合する。このラック１３ｂとギヤ３７との噛合
いにより色現像器１３は感光ドラム１１に対し近接或い
は離間せしめられる。The color developing device 13 is installed in the lower unit 52, and the four color developing device 13 has a cam 30, a pressure spring 32. The return spring 34 allows the photosensitive drum 11 to be moved toward and away from the photosensitive drum 11 using a conventionally known method. Furthermore, as illustrated in FIG. A rail 13a having a rack 13b at one end is integrally attached to the a-color developing device 13, and the rack 13b meshes with a gear 37 rotatably supported by a frame 40, which will be described later. The engagement between the rack 13b and the gear 37 allows the color developing device 13 to be brought close to or separated from the photosensitive drum 11.
枠体４０は上ユニット５２に設けられた軸４３に、第１
図にて該枠体４０の左側り部に形成された鍔部４０ａが
嵌合することにより姪動自在に支持され、又該枠体４０
の右側部は該枠体４０に一体的に設けられた支持片４０
ｂが下ユニツ）５１に設けた軸４４に係合することによ
り支持される。The frame body 40 is attached to a first shaft 43 provided on the upper unit 52.
In the figure, a flange 40a formed on the left side of the frame 40 is fitted to support the frame 40 in a movable manner.
The right side of is a support piece 40 integrally provided to the frame 40.
b is supported by engaging with a shaft 44 provided on the lower unit) 51.
本発明に従えば、枠体４０には帯電器１２及びクリーニ
ング器１６等の潜像形成手段並びに少なくとも１個の現
像器、好ましくは使用頻度の最も大きな現像器、本実施
例では黒現像器１４が感光ドラム１１と共に設置される
。According to the present invention, the frame body 40 includes latent image forming means such as the charging device 12 and the cleaning device 16, and at least one developing device, preferably the most frequently used developing device, in this embodiment, the black developing device 14. is installed together with the photosensitive drum 11.
黒現像器１４は、第２図に図示されるように、複数の案
内コロ３８によって枠体４０内をスライド’ ｎｆ能に
該枠体４０に担持され１通常は外側に設けた加圧バネ３
６により感光ドラム１１に近接するように加圧されてい
る。又、黒現像器１４はそのｌ一部に前記ギヤ３７と噛
み合うラック１４ａが設けられる。黒現像器１４を感光
ドラム１１から）間させるのは次のようにして行なう。As shown in FIG. 2, the black developing device 14 is supported by the frame 40 so as to be able to slide within the frame 40 by a plurality of guide rollers 38.
6 to be close to the photosensitive drum 11. Further, the black developing device 14 is partially provided with a rack 14a that engages with the gear 37. The black developing device 14 is separated from the photosensitive drum 11 in the following manner.
即ち、駆動機構（図示せず）により前記カム３０を矢印
方向へ、本実施例で反時計方向へ回転させると、カム３
０は加圧バネ３２を押圧し色現像’ｌ＜ １３は戻しバ
ネ３４に抗して感光ドラム１１へ近接する。このとき、
ラック１３ｂが移動してギヤ３７を矢印で示す反時計方
向へ回転させ、ギヤ３７のド部でこれと噛み合うラック
１４ａは右側へ移動する。この移動により黒現像器１４
は感光トラム１１から離間する方向へ移動し、カム３０
が１８０’回転すると色現像器１３が感光ドラム１１に
近接し、現像作動位置に設定される。貨って、色現像器
１３内の色トナーによる顕画が可能となる。That is, when the cam 30 is rotated in the direction of the arrow by a drive mechanism (not shown), counterclockwise in this embodiment, the cam 3
0 presses the pressure spring 32, and color development 'l<13 approaches the photosensitive drum 11 against the return spring 34. At this time,
The rack 13b moves to rotate the gear 37 in the counterclockwise direction shown by the arrow, and the rack 14a, which meshes with the gear 37 at the dot, moves to the right. Due to this movement, the black developing device 14
The cam 30 moves in the direction away from the photosensitive tram 11.
When the color developer 13 rotates 180', the color developer 13 comes close to the photosensitive drum 11 and is set at the developing operation position. In other words, it becomes possible to develop images using the color toners in the color developing device 13.
以」−のようにして、色現像器１３により色トナーによ
る顕画が終了し複写プロセスが完了すると、制御機構（
図示せず）にてカム３０が１８００だけ矢印方向とは反
対方向に回転する。このカム３０の回転に伴い戻しバネ
３４及び加圧バネ３６の弾発力によりギヤ３７は時計方
向に回転し、色現像器１３、黒現像器１４をそれぞれ第
２図に示す位置に復帰せしめる。このとき、黒現像器１
４は枠体４０内にｊｆ？けた案内コロ３８により案内さ
れるので枠体４０に設置された感光ドラム１１に対して
高精度で近接し又離間することができる。When the color developer 13 finishes developing the image using color toner and the copying process is completed, the control mechanism (
(not shown), the cam 30 rotates by 1800 in the direction opposite to the direction of the arrow. As the cam 30 rotates, the gear 37 rotates clockwise due to the elastic force of the return spring 34 and the pressure spring 36, thereby returning the color developing device 13 and the black developing device 14 to the positions shown in FIG. 2, respectively. At this time, black developer 1
4 is jf? inside the frame 40? Since it is guided by the girder guide rollers 38, it can approach and move away from the photosensitive drum 11 installed on the frame 40 with high precision.
更に、本発明に従えば第２図の状態にて、使用者は色現
像器１３を所９！の他の色トナーを収納した色現像器に
交換ＩＩｒ ｉＦであるが、その交換は次のようにして
行なう。即ち、色現像器１３はし〜ル１３ ａ 、ｈに
載置されているので、該色現像器１３を第２図で一ト前
方向にスライドさせて１−ユニット５２外へと引出しす
ことができ、代りに他の所望の色現像器をレール１３ａ
ｌ−に乗せ、奥側へと押し込めばよい、現像器は感光ド
ラム１１から離間状態にあるので感光ドラム１１の表面
を傷付けることはない。Furthermore, according to the present invention, in the state shown in FIG. 2, the user moves the color developing device 13 to the location 9! The IIr iF is replaced with a color developing device containing toner of another color, and the replacement is performed as follows. That is, since the color developing device 13 is placed on the shelves 13a to 13h, it is necessary to slide the color developing device 13 one step forward in FIG. 2 and pull it out of the 1-unit 52. , and instead install another desired color developer on the rail 13a.
It is sufficient to place the developing device on the photosensitive drum 11 and push it to the back side. Since the developing device is separated from the photosensitive drum 11, the surface of the photosensitive drum 11 will not be damaged.
次に、第３図を参照して感光ドラム１１の交換方法を説
明する。Next, a method for replacing the photosensitive drum 11 will be explained with reference to FIG.
ｉｆ、１−ユニット５２とドユニット５１とを係１！ユ
するストッパ一部材（図示せず）を解放すると、］−ユ
ニット５２はバネ機構（図示せず）によリヒンジ５０を
中心に、第３図で矢印方向（反時計方向）に回動し所定
角度量いた位置にて停＋ｈし、その状態で保持される。if, 1 - Unit 52 and Do unit 51 are connected to 1! When a stopper member (not shown) is released, the unit 52 is rotated in the direction of the arrow (counterclockwise) in FIG. It stops at the position where the angle is increased and is held in that state.
この場合、前記枠体４０の一端４０ｂを支持していた４
ｄ＋４４は下ユニット５１に固定されているので枠体４
０は−１−ユニット５２と共に軸４４から離間すると共
に、ｎ屯により軸４３を中心として矢印方向（時計方向
）に回動する。該枠体４０の回動は、枠体４０の−１一
端４０ａ及び他端４０ｂがｌニユニット５２に固定され
たガイドレール４１及び４２にそれぞれ係合することに
より停止にする。In this case, the 4 supporting the one end 40b of the frame 40
Since d+44 is fixed to the lower unit 51, the frame 4
0 is separated from the shaft 44 together with the -1- unit 52, and is rotated in the direction of the arrow (clockwise) about the shaft 43 by the nth turn. The rotation of the frame body 40 is stopped when the -1 end 40a and the other end 40b of the frame body 40 engage with guide rails 41 and 42 fixed to the lni unit 52, respectively.
−・方、枠体４０は該レール４１．４２を利用し、枠体
４０をこれらレール４０．４１をガイドとして、第３図
でｆ前側にスライドさせれば色現像器１３と接触するこ
となく、（１７電器１２．クリーニング器１６及び黒現
像器１４と共に一体として１ユニニツト５２から容易に
取出すことができる。- On the other hand, if the frame body 40 is slid to the front side f in FIG. , (17 electric appliances 12, can be easily taken out from one unit 52 together with the cleaning device 16 and the black developing device 14).
従って、木９：、ＩＪＩに従えば、感光ドラム１１は枠
体と共に装置本体から外した後に機外にて極めて容易に
交換することができる。Therefore, according to IJI, the photosensitive drum 11 can be removed from the main body of the apparatus together with the frame and then replaced very easily outside the apparatus.
又、未発Ｉｌｌは、−ヒ述の実施例に限定されず第４図
に示す第２実施例のように構成してもよい、第２実施例
では、色現像器１３が枠体４０内に設置され、黒現像器
１４は輔４５の回りに揺動自在に上ユニット５２に支持
される。従って、該実施例の場合には、Ｉニユニット５
２の回動に際して作動カム３１を駆動することにより、
黒現像器１４を軸４５を中心に下方へと、第４図で反時
計方向に回動させ感光ドラム１１と現像器１４とを離間
状ｍに保持する。これにより、枠体４０が−Ｌユニット
５２から取出し＋ｉ（能とされる。Further, the undeveloped Ill is not limited to the embodiments described in -A, but may be configured as in the second embodiment shown in FIG. The black developing device 14 is supported by the upper unit 52 so as to be swingable around the support 45. Therefore, in the case of this embodiment, I unit 5
By driving the operating cam 31 when rotating the
The black developing device 14 is rotated downward about the shaft 45, counterclockwise in FIG. 4, to maintain the photosensitive drum 11 and the developing device 14 at a distance m. As a result, the frame body 40 can be removed from the -L unit 52.
尚、 １：記各実施例では枠体４０内における現像器
１３の感光ドラム１１への接触作動はスライド動作とし
て説明したが１本発明はこれに限定されず、例えば現像
器を一端で軸支し該現像器の揺動動作により感光ドラム
１１に離接するように構成することもＩｊ丁ｆｌである
。1: In each of the embodiments described above, the contact operation of the developing device 13 with the photosensitive drum 11 within the frame body 40 was described as a sliding movement, but the present invention is not limited to this. For example, the developing device may be pivoted at one end. However, it is also possible to construct the developing device so that it moves into and out of contact with the photosensitive drum 11 by the swinging motion of the developing device.
Ｌ見立Ａ］
以ト説ＩＪ１シたように本発明は、少なくとも２個の現
像器を備えた画像形成装置において、前記現像器の少な
くとも１個を像担持体、帯電器、クリーニング器と共に
１個の枠体内に設置し、該枠体を装置本体に対し着脱イ
エとすることにより、現像器及び像担持体の交換が容易
に行なえ、又各現像器を像担持体へ離接させる機構が簡
易化されるとともに小型化されるという特長を有する。L Mitate A] As described in Part IJ1 below, the present invention provides an image forming apparatus having at least two developing devices, in which at least one of the developing devices is integrated into one along with an image carrier, a charging device, and a cleaning device. By installing the developing device in a separate frame and making the frame removable from the main body of the apparatus, the developing device and image carrier can be easily replaced, and a mechanism for moving each developing device toward and away from the image carrier can be easily replaced. It has the features of being simplified and downsized.
従って、本発明に従えば、画像形成装置の小型化の要請
に対応できるとともに、操作及びメインテナンスの筒易
化が図れ１画像形成装置としての信頼性、利便性を著し
く向ヒすることができる。Therefore, according to the present invention, it is possible to meet the demand for miniaturization of image forming apparatuses, and to simplify operation and maintenance, thereby significantly improving reliability and convenience as a single image forming apparatus.
第１図は、本発明に係る画像形成装置の一実施例を示す
電子写真複写装置の断面図である。
第２図は、現像器の作動説明をなすための第１図の部分
拡大図である。
第３図は、第１図の装置にて１−ユニットを閉状７．４
にしたのを示す断面図である。
第４図は、本発明に係る画像形成装置の第２実施例の断
面図である。
第５図は、従来の゛電子写真複写装置の断面図である。
ｌｌ；像担持体
１２：ぜ；シミ器
１３．１４：現像器
ｌ６：クリーニング器
４０：枠体FIG. 1 is a sectional view of an electrophotographic copying apparatus showing an embodiment of an image forming apparatus according to the present invention. FIG. 2 is a partially enlarged view of FIG. 1 for explaining the operation of the developing device. Figure 3 shows the apparatus shown in Figure 1 in which 1-unit is closed 7.4.
FIG. FIG. 4 is a sectional view of a second embodiment of the image forming apparatus according to the present invention. FIG. 5 is a sectional view of a conventional electrophotographic copying apparatus. ll; Image carrier 12: Stainer 13.14: Developing device 16: Cleaning device 40: Frame
Claims (1)
像形成手段並びに複数の現像器を備えた画像形成装置に
おいて、少なくとも前記像担持体及び１個の前記現像器
を、装置本体に対し着脱自在に設けられた１個の枠体内
に設置したことを特徴とする画像形成装置。 ２）枠体に設置される現像器は像担持体に対し接離自在
とされる特許請求の範囲第１項記載の装置。 ３）枠体に設置される現像器は下方に位置する現像器で
あり、該枠体は装置本体に対し揺動自在に設けられる特
許請求の範囲第１項又は第２項記載の画像形成装置。 ４）枠体に設置される１個の現像器は、最も使用頻度の
高い色のトナーを収納している特許請求の範囲第１項か
ら第３項のいずれかの項に記載の画像形成装置。 ５）色現像器が枠体に設置され、黒現像器は装置本体に
可動に取付けられ、枠体を装置本体より取出す際に該黒
現像器は像担持体から離間するように移動する特許請求
の範囲第１項又は第２項記載の画像形成装置。[Scope of Claims] 1) An image forming apparatus including latent image forming means such as a charger and a cleaning device, and a plurality of developing devices along an image carrier, at least the image carrier and one developing device. An image forming apparatus characterized in that: is installed in a single frame that is detachably attached to an apparatus main body. 2) The apparatus according to claim 1, wherein the developing device installed in the frame can be moved toward and away from the image carrier. 3) The image forming apparatus according to claim 1 or 2, wherein the developing device installed in the frame is a developing device located below, and the frame is provided so as to be swingable with respect to the main body of the device. . 4) The image forming apparatus according to any one of claims 1 to 3, wherein one developing device installed in the frame stores toner of the most frequently used color. . 5) A patent claim in which the color developing device is installed in a frame, the black developing device is movably attached to the apparatus main body, and the black developing device moves away from the image carrier when the frame is taken out from the device main body. The image forming apparatus according to the range 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60274989A JPS62134654A (en) | 1985-12-09 | 1985-12-09 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60274989A JPS62134654A (en) | 1985-12-09 | 1985-12-09 | Image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62134654A true JPS62134654A (en) | 1987-06-17 |
Family
ID=17549352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60274989A Pending JPS62134654A (en) | 1985-12-09 | 1985-12-09 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62134654A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62209545A (en) * | 1986-03-11 | 1987-09-14 | Konishiroku Photo Ind Co Ltd | Structure of fitting part of developing device such as copying machine |
| EP0276910A1 (en) * | 1987-01-09 | 1988-08-03 | Canon Kabushiki Kaisha | Process cartridge and multicolor image forming apparatus using same |
| JPH01106076A (en) * | 1987-10-20 | 1989-04-24 | Fuji Xerox Co Ltd | Developing device |
| JPH01167765A (en) * | 1987-12-23 | 1989-07-03 | Canon Inc | Process cartridge for image forming device |
| JPH01162361U (en) * | 1988-04-28 | 1989-11-13 | ||
| EP0357432A2 (en) * | 1988-08-31 | 1990-03-07 | Mita Industrial Co., Ltd. | A multi-color developing device for an image forming apparatus |
| EP0370455A2 (en) * | 1988-11-21 | 1990-05-30 | Konica Corporation | Color copy machine with detachable process cartridge |
| JPH02140768A (en) * | 1988-11-21 | 1990-05-30 | Konica Corp | Color picture forming device |
| JPH02141777A (en) * | 1988-11-22 | 1990-05-31 | Konica Corp | Color image forming device |
| EP0416596A2 (en) * | 1989-09-07 | 1991-03-13 | SHARP Corporation | Facsimile apparatus |
| US5327208A (en) * | 1989-05-09 | 1994-07-05 | Konica Corporation | Color image forming apparatus with a multicolor detachable process unit |
| US5414493A (en) * | 1990-01-19 | 1995-05-09 | Canon Kabushiki Kaisha | Image forming apparatus |
| SG79187A1 (en) * | 1990-11-06 | 2001-03-20 | Canon Kk | Process cartridge and image forming apparatus usable therewith |
| US6535708B2 (en) * | 2001-03-20 | 2003-03-18 | Toshiba Tec Kabushiki Kaisha | Developing device with a contact-enabling mechanism |
| CN102236278A (en) * | 2010-04-23 | 2011-11-09 | 虹光精密工业（苏州）有限公司 | Imaging equipment with upper photosensitive drum |
| KR20170141819A (en) * | 2013-09-06 | 2017-12-26 | 가부시키가이샤 리코 | Toner, developer, and image forming apparatus |
| WO2021037030A1 (en) * | 2019-08-27 | 2021-03-04 | 纳思达股份有限公司 | Development cartridge and electronic imaging apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931976A (en) * | 1982-08-17 | 1984-02-21 | Canon Inc | Image forming device |
| JPS5961859A (en) * | 1982-09-30 | 1984-04-09 | Canon Inc | Process kit |
| JPS60229043A (en) * | 1984-04-27 | 1985-11-14 | Toshiba Corp | Image forming device |
| JPS61201274A (en) * | 1985-03-04 | 1986-09-05 | Canon Inc | Image forming device |
-
1985
- 1985-12-09 JP JP60274989A patent/JPS62134654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931976A (en) * | 1982-08-17 | 1984-02-21 | Canon Inc | Image forming device |
| JPS5961859A (en) * | 1982-09-30 | 1984-04-09 | Canon Inc | Process kit |
| JPS60229043A (en) * | 1984-04-27 | 1985-11-14 | Toshiba Corp | Image forming device |
| JPS61201274A (en) * | 1985-03-04 | 1986-09-05 | Canon Inc | Image forming device |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62209545A (en) * | 1986-03-11 | 1987-09-14 | Konishiroku Photo Ind Co Ltd | Structure of fitting part of developing device such as copying machine |
| US4924267A (en) * | 1987-01-09 | 1990-05-08 | Canon Kabushiki Kaisha | Process cartridge and multi-color image forming apparatus using same |
| EP0276910A1 (en) * | 1987-01-09 | 1988-08-03 | Canon Kabushiki Kaisha | Process cartridge and multicolor image forming apparatus using same |
| JPH01106076A (en) * | 1987-10-20 | 1989-04-24 | Fuji Xerox Co Ltd | Developing device |
| JPH01167765A (en) * | 1987-12-23 | 1989-07-03 | Canon Inc | Process cartridge for image forming device |
| JPH01162361U (en) * | 1988-04-28 | 1989-11-13 | ||
| US4970561A (en) * | 1988-08-31 | 1990-11-13 | Mita Industrial Co., Ltd. | Multi-color developing device having a retractable mechanism for an image forming apparatus |
| EP0357432A2 (en) * | 1988-08-31 | 1990-03-07 | Mita Industrial Co., Ltd. | A multi-color developing device for an image forming apparatus |
| EP0370455A2 (en) * | 1988-11-21 | 1990-05-30 | Konica Corporation | Color copy machine with detachable process cartridge |
| JPH02140768A (en) * | 1988-11-21 | 1990-05-30 | Konica Corp | Color picture forming device |
| JPH02141777A (en) * | 1988-11-22 | 1990-05-31 | Konica Corp | Color image forming device |
| US5327208A (en) * | 1989-05-09 | 1994-07-05 | Konica Corporation | Color image forming apparatus with a multicolor detachable process unit |
| EP0416596A2 (en) * | 1989-09-07 | 1991-03-13 | SHARP Corporation | Facsimile apparatus |
| US5414493A (en) * | 1990-01-19 | 1995-05-09 | Canon Kabushiki Kaisha | Image forming apparatus |
| US5471284A (en) * | 1990-01-19 | 1995-11-28 | Canon Kabushiki Kaisha | Image forming apparatus having toner depletion detection feature |
| SG79187A1 (en) * | 1990-11-06 | 2001-03-20 | Canon Kk | Process cartridge and image forming apparatus usable therewith |
| US6535708B2 (en) * | 2001-03-20 | 2003-03-18 | Toshiba Tec Kabushiki Kaisha | Developing device with a contact-enabling mechanism |
| CN102236278A (en) * | 2010-04-23 | 2011-11-09 | 虹光精密工业（苏州）有限公司 | Imaging equipment with upper photosensitive drum |
| KR20170141819A (en) * | 2013-09-06 | 2017-12-26 | 가부시키가이샤 리코 | Toner, developer, and image forming apparatus |
| WO2021037030A1 (en) * | 2019-08-27 | 2021-03-04 | 纳思达股份有限公司 | Development cartridge and electronic imaging apparatus |
| US11635728B2 (en) | 2019-08-27 | 2023-04-25 | Ninestar Corporation | Developing cartridge and electronic imaging apparatus |
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