JPH04282661A - Developing unit for electrophotographic copying device - Google Patents
Developing unit for electrophotographic copying deviceInfo
- Publication number
- JPH04282661A JPH04282661A JP3070640A JP7064091A JPH04282661A JP H04282661 A JPH04282661 A JP H04282661A JP 3070640 A JP3070640 A JP 3070640A JP 7064091 A JP7064091 A JP 7064091A JP H04282661 A JPH04282661 A JP H04282661A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder lens
- developing unit
- developing
- lens
- attachment
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims description 15
- 108091008695 photoreceptors Proteins 0.000 description 16
- 239000002699 waste material Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、レ−ザを用いた、プ
リンタ・複写機・ファクシミリなど、電子写真方式（感
光体に形成した画像をシ−トに転写して記録を行う方式
）によりシ−トに記録を行う電子写真装置に適用しうる
。詳しくは、そのような電子写真装置において、現像器
にそれと略同寿命のものを一体化して形成し、光書込み
器からの光を透過するシリンダレンズを保持する現像ユ
ニットに関する。[Industrial Application Field] This invention is applicable to printers, copiers, facsimile machines, etc., which use lasers, using electrophotography (a method of recording by transferring an image formed on a photoreceptor onto a sheet). It can be applied to electrophotographic devices that record on sheets. Specifically, in such an electrophotographic apparatus, the present invention relates to a developing unit that is integrally formed with a developing unit and has a lifespan substantially the same as that of the developing unit, and holds a cylinder lens that transmits light from an optical writer.
【０００２】0002
【従来の技術】例えばレ−ザプリンタは、駆動されて回
転する感光体を帯電器によってその表面を一様に帯電し
、光書込み器からのレ−ザ光を照射して感光体上に静電
潜像を形成する。この潜像は、現像器によってトナ−現
像して可視像化する。この可視像は、感光体に搬送され
てきたシ−トに転写器により転写する。そして、転写後
の感光体上に残留したトナ−は、クリーニング器でクリ
ーニングし、廃トナ−貯蔵部に回収する。従来、このよ
うなレ−ザプリンタの中には、メンテナンス性の向上の
ためにその現像器と略同寿命の帯電器や廃トナ−貯蔵部
等を前記現像器と一体化して形成し、現像ユニットとし
てユニット化したものがあった。そして、更に配置の関
係から、この現像ユニットに光書込み器からの光を透過
するシリンダレンズを取り付けたものがあった。ところ
で、このようなレ−ザプリンタ似合っては、シリンダレ
ンズは清掃をしなければならないが、現像ユニットと一
体としておけば、現像ユニットの交換とともに交換され
るので清掃が不要となるメリットがあった。2. Description of the Related Art For example, in a laser printer, the surface of a photoreceptor that is driven and rotates is uniformly charged by a charger, and then a laser beam from an optical writer is irradiated to imprint the photoreceptor on the photoreceptor. Forms an electrolatent image. This latent image is developed with toner by a developing device to become a visible image. This visible image is transferred by a transfer device onto the sheet conveyed to the photoreceptor. The toner remaining on the photoreceptor after transfer is cleaned by a cleaning device and collected in a waste toner storage section. Conventionally, in order to improve maintainability, some of these laser printers have integrated a charger, a waste toner storage unit, etc., which has approximately the same lifespan as the developing device, with the developing device. Some were made into units. Further, due to the arrangement, some developing units are equipped with a cylinder lens that transmits light from an optical writer. By the way, in a laser printer like this, the cylinder lens must be cleaned, but if it were integrated with the developing unit, it would be replaced at the same time as the developing unit, so there would be no need to clean it. .
【０００３】0003
【発明が解決しようとする課題】ところが、前記のよう
な現像ユニットであってもユニットの交換前にシリンダ
レンズが汚れる場合があり、特にシ−トが感光体の上側
に搬送される方式の上搬送の場合などに汚れやすいとい
う問題点があった。[Problems to be Solved by the Invention] However, even in the developing unit as described above, the cylinder lens may become dirty before the unit is replaced. There was a problem that it easily got dirty during transportation.
【０００４】そこで、この発明の目的は、現像ユニット
に組み込んだシリンダレンズをその清掃時などに容易に
着脱ができるようにすることにある。SUMMARY OF THE INVENTION An object of the present invention is to enable a cylinder lens incorporated in a developing unit to be easily attached and detached when cleaning the cylinder lens.
【０００５】[0005]
【課題を解決するための手段】そのため、請求項１に記
載のこの発明は、例えば以下の図示実施例のように、現
像器１４にそれと略同寿命の帯電器１３や廃トナ−貯蔵
部３４などを一体化して形成し、光書込み器１８からの
光を透過するシリンダレンズ３２を保持する電子写真装
置の現像ユニット３３において、前記シリンダレンズ３
２をその長さ方向に引出自在に備えてなる、ことを特徴
とする。また、請求項２に記載のこの発明は、例えば以
下の図示実施例のように、請求項１に記載の発明におい
て、前記シリンダレンズ３２の引出側端部３２ｃに指掛
け部３２ｅを設けてなる、ことを特徴とする。また、請
求項３に記載のこの発明は、例えば以下の図示実施例の
ように、請求項１に記載の発明において、前記シリンダ
レンズ３２の着脱を案内する着脱ガイド３９ａ・３９ｂ
を設けてなる、ことを特徴とする。また、請求項４に記
載のこの発明は、例えば以下の図示実施例のように、請
求項１に記載の発明において、前記シリンダレンズ３２
の装着時にクリック感を付与する突部３２ｆと係止部４
１とを設けてなる、ことを特徴とする。また、請求項５
に記載のこの発明は、例えば以下の図示実施例のように
、請求項１に記載の発明において、前記シリンダレンズ
３２の着脱時そのレンズ面を清掃する清掃部材４０を設
けてなる、ことを特徴とする。[Means for Solving the Problems] Therefore, in the present invention as set forth in claim 1, for example, as in the illustrated embodiment below, the developing device 14 is provided with a charger 13 having approximately the same lifespan as the developing device 14, and a waste toner storage portion 34. In a developing unit 33 of an electrophotographic apparatus that holds a cylinder lens 32 that is integrally formed with a cylinder lens 32 that transmits light from an optical writer 18, the cylinder lens 3
2, which can be freely drawn out in the length direction. Further, the present invention according to claim 2 is, for example, as in the illustrated embodiment below, in the invention according to claim 1, a finger hook portion 32e is provided at the drawer side end 32c of the cylinder lens 32. It is characterized by Further, the present invention as set forth in claim 3 provides attachment/detachment guides 39a and 39b for guiding the attachment and detachment of the cylinder lens 32 in the invention as claimed in claim 1, for example as in the illustrated embodiment below.
It is characterized by having the following. Further, the present invention as set forth in claim 4 is, for example, as in the illustrated embodiment below, in the invention as set forth in claim 1, the cylinder lens 32
The protrusion 32f and the locking part 4 provide a click feeling when the is attached.
1. Also, claim 5
The invention described in , for example, as in the illustrated embodiment below, is characterized in that the invention according to claim 1 is provided with a cleaning member 40 that cleans the lens surface when the cylinder lens 32 is attached or detached. shall be.
【０００６】[0006]
【作用】そして、請求項１に記載の発明では、例えばシ
リンダレンズ３２の清掃が必要な時などに、現像ユニッ
ト３３を装置本体から取り出し、この現像ユニット３３
からシリンダレンズ３２をその長さ方向に引き出す。ま
た、請求項２に記載の発明では、シリンダレンズ３２を
引き出すとき、指掛け部３２ｅに指を掛けて引き出す。
また、請求項３に記載の発明では、シリンダレンズ３２
を着脱するとき、着脱ガイド３９ａ・３９ｂで案内して
着脱する。また、請求項４に記載の発明では、シリンダ
レンズ３２を装着するとき突部３２ｆと係止部４１とで
クリック感を持たせる。また、請求項５に記載の発明で
は、シリンダレンズ３２の着脱時に清掃部材４０により
そのレンズ面を清掃する。[Function] In the invention described in claim 1, when the cylinder lens 32 needs to be cleaned, for example, the developing unit 33 is removed from the main body of the apparatus, and the developing unit 33 is removed from the main body of the apparatus.
The cylinder lens 32 is pulled out in its length direction. Moreover, in the invention described in claim 2, when pulling out the cylinder lens 32, the user hooks his/her finger on the finger hook 32e and pulls out the cylinder lens 32. Further, in the invention according to claim 3, the cylinder lens 32
When attaching and detaching, the attachment and detachment are guided by attachment and detachment guides 39a and 39b. Further, in the invention as set forth in claim 4, when the cylinder lens 32 is mounted, the protrusion 32f and the locking portion 41 provide a click feeling. Further, in the invention as set forth in claim 5, the lens surface is cleaned by the cleaning member 40 when the cylinder lens 32 is attached or detached.
【０００７】[0007]
【実施例】以下、図面を参照しつつ、この発明の一実施
例について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１１は、この発明の一実施例である現像
ユニットを備えるレーザプリンタの内部機構の全体構成
概略図である。図中符号１０で示すものは、装置本体で
ある。装置本体１０は、上構造体１０ａと下構造体１０
ｂとで構成し、上構造体１０ａを下構造体１０ｂに軸１
１によって開閉自在に取付ける。装置本体１０内には、
ほぼ中央にベルト状の感光体１２を設ける。感光体１２
のまわりには、矢印で示す駆動方向に順に、帯電器１３
、現像器１４、転写器１５、クリーニング器１６を配置
する。そして、帯電器１３およびクリーニング器１６の
下側には光書込み器１８を配置し、現像器１４の斜め上
側には給紙カセット１９を配置する。FIG. 11 is a schematic diagram of the entire internal structure of a laser printer equipped with a developing unit, which is an embodiment of the present invention. What is indicated by the reference numeral 10 in the figure is the main body of the apparatus. The device main body 10 includes an upper structure 10a and a lower structure 10.
b, and the upper structure 10a is connected to the lower structure 10b with the shaft 1.
1, it is installed so that it can be opened and closed freely. Inside the device main body 10,
A belt-shaped photoreceptor 12 is provided approximately in the center. Photoreceptor 12
Around the charger 13 are placed in order in the driving direction indicated by the arrow.
, a developing device 14, a transfer device 15, and a cleaning device 16 are arranged. An optical writer 18 is arranged below the charging device 13 and the cleaning device 16, and a paper feed cassette 19 is arranged obliquely above the developing device 14.
【０００９】そして、給紙カセット１９から給紙ローラ
２０によって給送されたシ−トは、レジストローラ対２
１によってタイミングをとられて感光体１２の上側に搬
送される。感光体１２は、矢示するように反時計方向に
駆動し、その際、帯電器１３によって表面を一様に帯電
し、光書込み器１８からのレーザ光Ｌを照射して感光体
１２上に静電潜像を形成する。この潜像は、現像器１４
を通るときトナーによって可視像化する。そして、この
可視像は、感光体１２の上側に搬送されてきたシ−トの
下面に転写器１５により転写する。その転写したシ−ト
は、搬送ガイド２３で案内して定着器１７の定着ローラ
１７ａと加圧ローラ１７ｂとの間に搬送し、可視像を定
着する。そして、定着器１７を出たシ−トは、さらに排
紙ローラ２４によって排紙部２５へ搬送し、排紙ガイド
２６で案内して排紙トレイ２７にスタックする。Then, the sheet fed from the paper cassette 19 by the paper feed roller 20 is transferred to the registration roller pair 2.
1, the photoreceptor 12 is conveyed to the upper side of the photoreceptor 12. The photoreceptor 12 is driven counterclockwise as shown by the arrow, and at this time, the surface is uniformly charged by the charger 13, and the laser beam L from the optical writer 18 is irradiated onto the photoreceptor 12. Forms an electrostatic latent image. This latent image is transferred to the developing device 14.
When it passes through the toner, it becomes a visible image. This visible image is then transferred by a transfer device 15 to the lower surface of the sheet that has been conveyed above the photoreceptor 12. The transferred sheet is guided by a conveyance guide 23 and conveyed between a fixing roller 17a and a pressure roller 17b of a fixing device 17, and the visible image is fixed thereon. The sheets exiting the fixing device 17 are further conveyed to a paper ejection section 25 by a paper ejection roller 24, guided by a paper ejection guide 26, and stacked on a paper ejection tray 27.
【００１０】光書込み器１８内には、スキャナモ−タ２
８、そのスキャナモ−タ２８の軸に一体に取り付けたポ
リゴンミラ−２９、ｆθレンズ３０、ミラ−３１などを
設けてあり、図示省略するレ−ザ光源からのレ−ザ光Ｌ
をポリゴンミラ−２９に入射し、一定の角度範囲を繰返
し偏向する。偏向光は、ｆθレンズ３０により感光体１
２上の光書込み位置で直線状に結像し、等速で投影点が
移動するように補正され、ミラ−３１、及び光書込み器
１８からのレーザ光Ｌを透過するシリンダレンズ３２を
介して感光体１２に入射する。そして、前記のように感
光体１２上に静電潜像を形成する。[0010] Inside the optical writer 18, there is a scanner motor 2.
8. A polygon mirror 29, an fθ lens 30, a mirror 31, etc. are integrally attached to the axis of the scanner motor 28, and a laser beam L from a laser light source (not shown) is provided.
is incident on the polygon mirror 29, and is repeatedly deflected within a certain angular range. The polarized light is transmitted to the photoreceptor 1 by the fθ lens 30.
The image is formed in a straight line at the optical writing position on 2, and the projection point is corrected so that it moves at a constant speed. The light is incident on the photoreceptor 12. Then, an electrostatic latent image is formed on the photoreceptor 12 as described above.
【００１１】ところで、この発明による現像ユニットは
、図１に示すように上述した現像器１４に、それと略同
寿命である帯電器１３、廃トナ−貯蔵部３４等を一体化
して形成する。廃トナ−貯蔵部３４には、クリーニング
器１６で回収された廃トナ−をオ−ガ３５で移送して送
り込む。そして、現像ユニット３３を装置本体１０の下
構造体１０ｂ内に取付け取外し自在に設ける。また、前
記シリンダレンズ３２は、図２に示すように現像ユニッ
ト３３の側板３３ａに設けた穴から長さ方向に挿入し、
その両端を現像ユニット３３の両側板３３ａ・３３ｂ（
図４参照）で保持してレーザ光Ｌの光路上に配置する。
このシリンダレンズ３２の保持は、下記のようにする。
即ち、図３に示すように現像ユニット３３の一方の側板
３３ａに指が挿入可能な凹部３６を設け、その凹部３６
にシリンダレンズ３２をその長さ方向に引出自在の穴３
７を設ける。そして、図４に示すように他方の側板３３
ｂにシリンダレンズ３２の一端を嵌め入れて保持する保
持部３８を設け、現像ユニット３３内に挿入したシリン
ダレンズ３２の先端を保持部３８で保持する。The developing unit according to the present invention, as shown in FIG. 1, is formed by integrating the above-described developing device 14 with a charger 13, a waste toner storage section 34, etc., which have approximately the same lifespan as the developing device 14. The waste toner collected by the cleaning device 16 is transferred and fed into the waste toner storage section 34 by an auger 35. The developing unit 33 is provided in the lower structure 10b of the apparatus main body 10 so as to be freely attachable and detachable. The cylinder lens 32 is inserted in the length direction through a hole provided in the side plate 33a of the developing unit 33, as shown in FIG.
Both ends of the side plates 33a and 33b of the developing unit 33 (
(see FIG. 4) and placed on the optical path of the laser beam L. This cylinder lens 32 is held as follows. That is, as shown in FIG. 3, a recess 36 into which a finger can be inserted is provided in one side plate 33a of the developing unit 33.
A hole 3 allows the cylinder lens 32 to be freely pulled out in its length direction.
7 will be provided. Then, as shown in FIG. 4, the other side plate 33
A holding portion 38 that fits and holds one end of the cylinder lens 32 is provided at b, and the holding portion 38 holds the tip of the cylinder lens 32 inserted into the developing unit 33.
【００１２】また、図５にも示すように現像ユニット３
３のフレ−ム３３ｃには、側板３３ａと３３ｂ間にわた
るシリンダレンズ３２の着脱ガイド３９ａを設け、帯電
器１３には、シリンダレンズ３２の他方の側を支持する
着脱ガイド３９ｂを設ける。この帯電器１３に設ける着
脱ガイド３９ｂは、図６に示すように帯電器１３のシリ
ンダレンズ３２側の下部に、シリンダレンズ３２の長さ
方向に沿って断面Ｌ字状に設け、シリンダレンズ３２の
一方の側の下端部を支持しながら案内する形状とする。
また、現像ユニット３３の側板３３ａに設けた穴３７の
上下の開口縁には、図７に示すようにシリンダレンズ３
２の両面を挟むように清掃部材４０を設ける。Further, as shown in FIG. 5, the developing unit 3
The frame 33c of No. 3 is provided with an attachment/detachment guide 39a for the cylinder lens 32 extending between the side plates 33a and 33b, and the charger 13 is provided with an attachment/detachment guide 39b for supporting the other side of the cylinder lens 32. The attachment/detachment guide 39b provided in the charger 13 is provided in the lower part of the charger 13 on the side of the cylinder lens 32 and has an L-shaped cross section along the length direction of the cylinder lens 32, as shown in FIG. It has a shape that guides while supporting the lower end of one side. Furthermore, as shown in FIG.
A cleaning member 40 is provided so as to sandwich both sides of 2.
【００１３】シリンダレンズ３２は、図８、図９、及び
図１０に示すように細幅で長い形状のレンズ部３２ａと
その両端に設けた挿入側端部３２ｂと引出側端部３２ｃ
とを一体形成する。そして、挿入側端部３２ｂは、前記
保持部３８への挿入が容易なように角部を面取りし、引
出側端部３２ｃには、Ｕ字状の切込みにより挿入側端部
に向けた細長い弾性爪３２ｄを設ける。そして、この弾
性爪３２ｄの自由端の上面には、その幅方向に突部３２
ｆを設ける。この突部３２ｆは、丸みを持った断面形状
とする。また、この引出側端部３２ｃの端縁には、下方
に向けて突出する指掛け部３２ｅを設ける。更に、シリ
ンダレンズ３２の側縁には、前記帯電器１３に設けた着
脱ガイド３９ｂに係合する係合縁部３２ｇをシリンダレ
ンズ３２の略全長にわたって設ける。As shown in FIGS. 8, 9, and 10, the cylinder lens 32 includes a narrow and long lens portion 32a, an insertion side end 32b and a pullout side end 32c provided at both ends of the lens portion 32a.
and are integrally formed. The insertion side end 32b has chamfered corners so that it can be easily inserted into the holding part 38, and the drawer side end 32c has a U-shaped notch to provide an elongated elastic band toward the insertion side end. A claw 32d is provided. A protrusion 32 is provided on the upper surface of the free end of the elastic claw 32d in the width direction.
Provide f. This protrusion 32f has a rounded cross-sectional shape. Furthermore, a finger hook portion 32e that projects downward is provided at the edge of the drawer side end portion 32c. Furthermore, an engagement edge 32g that engages with an attachment/detachment guide 39b provided on the charger 13 is provided on the side edge of the cylinder lens 32 over substantially the entire length of the cylinder lens 32.
【００１４】そして、このように構成した現像ユニット
３３は、シリンダレンズ３２を清掃などのために取り外
すときは、上構造体１０ａを開けて現像ユニット３３を
取り出す。次に、シリンダレンズ３２の指掛け部３２ｅ
に指を掛けてシリンダレンズ３２を着脱ガイド３９ａ・
３９ｂで案内してその長さ方向に引き出す。すると、突
部３２ｆは弾性爪３２ｄの弾性変形によって係止部４１
への係止が外れて引き出される。そして、シリンダレン
ズ３２の清掃などを行う。尚、清掃部材４０も、シリン
ダレンズ３２の引出時にその両面と摺れてその面を清掃
する。また、装着するときは、シリンダレンズ３２の挿
入側端部３２ｂから係合縁部３２ｇを帯電器１３側の着
脱ガイド３９ｂに係合するとともに、他方の着脱ガイド
３９ａに係合縁部３２ｇと反対側の側面を接触させて挿
入し、その挿入側端部３２ｂを保持部３８に嵌め入れて
保持する。すると、それと同時に図７に示すように穴３
７の開口縁を係止部４１としてこれに突部３２ｆがクリ
ック感を持って係止する。また、清掃部材４０は、シリ
ンダレンズ３２の挿入と同時にその両面に接触する。次
に、現像ユニット３３を下構造体１０ｂに組み込み、上
構造体１０ａを閉じる。When the cylinder lens 32 of the thus constructed developing unit 33 is to be removed for cleaning or the like, the upper structure 10a is opened and the developing unit 33 is taken out. Next, the finger hook portion 32e of the cylinder lens 32
Place your finger on the attachment/detachment guide 39a of the cylinder lens 32.
39b and pull it out in its length direction. Then, the protrusion 32f engages the locking portion 41 due to the elastic deformation of the elastic claw 32d.
The lock will be released and it will be pulled out. Then, the cylinder lens 32 is cleaned. Note that the cleaning member 40 also rubs against both surfaces of the cylinder lens 32 when it is pulled out, thereby cleaning the surfaces. When mounting, the engaging edge 32g from the insertion side end 32b of the cylinder lens 32 is engaged with the attachment/detachment guide 39b on the charger 13 side, and the other attachment/detachment guide 39a is inserted opposite to the engagement edge 32g. The insertion side end portion 32b is inserted into the holding portion 38 and held with the side surfaces in contact with each other. At the same time, hole 3 is opened as shown in Figure 7.
The opening edge of No. 7 is used as a locking portion 41, and the protrusion 32f locks therewith with a click feeling. Further, the cleaning member 40 contacts both surfaces of the cylinder lens 32 at the same time as the cylinder lens 32 is inserted. Next, the developing unit 33 is assembled into the lower structure 10b, and the upper structure 10a is closed.
【００１５】[0015]
【発明の効果】従って、この発明では、例えばシリンダ
レンズが汚れたときなどに、現像ユニットを取り出して
着脱して容易に清掃することができる。また、請求項２
に記載の発明では、シリンダレンズの引出時に指掛け部
に指を掛けることにより容易に引き出すことができる。
また、請求項３に記載の発明では、シリンダレンズの所
定位置への装着が容易となる。また、請求項４に記載の
発明では、シリンダレンズの所定位置への装着時に装着
感が得られるとともに、容易にレンズを固定することが
できる。また、請求項５に記載の発明では、シリンダレ
ンズの着脱とともにその両面の清掃を自動的に、かつ容
易に行うことができる。Therefore, according to the present invention, when the cylinder lens becomes dirty, for example, the developing unit can be taken out, attached and detached, and cleaned easily. Also, claim 2
In the invention described in , the cylinder lens can be easily pulled out by hooking the finger on the finger hook when pulling out the cylinder lens. Further, in the invention as set forth in claim 3, it becomes easy to attach the cylinder lens to a predetermined position. Moreover, in the invention as set forth in claim 4, a comfortable feeling of wearing can be obtained when the cylinder lens is mounted in a predetermined position, and the lens can be easily fixed. Further, in the invention as set forth in claim 5, it is possible to automatically and easily attach and detach the cylinder lens and clean both surfaces thereof.
【図１】この発明の一実施例である現像ユニットの概略
構成図である。FIG. 1 is a schematic configuration diagram of a developing unit that is an embodiment of the present invention.
【図２】その現像ユニットの斜視図である。FIG. 2 is a perspective view of the developing unit.
【図３】その現像ユニットのシリンダレンズ装着部付近
の側面図である。FIG. 3 is a side view of the vicinity of the cylinder lens mounting portion of the developing unit.
【図４】その現像ユニットの帯電器を取り外した状態の
分解斜視図である。FIG. 4 is an exploded perspective view of the developing unit with the charger removed.
【図５】その現像ユニットの部分断面図である。FIG. 5 is a partial sectional view of the developing unit.
【図６】その帯電器に設けた着脱ガイドの斜視図である
。FIG. 6 is a perspective view of an attachment/detachment guide provided in the charger.
【図７】そのシリンダレンズの引出側端部付近の部分断
面図である。FIG. 7 is a partial cross-sectional view of the vicinity of the drawer side end of the cylinder lens.
【図８】そのシリンダレンズの正面図である。FIG. 8 is a front view of the cylinder lens.
【図９】その側面図である。FIG. 9 is a side view thereof.
【図１０】その断面図である。FIG. 10 is a sectional view thereof.
【図１１】その現像ユニットを備えるレ−ザプリンタの
概略構成図である。FIG. 11 is a schematic configuration diagram of a laser printer including the developing unit.
１３ 帯電器 １４ 現像器 １８ 光書込み器 ３２ シリンダレンズ ３２ｅ 指掛け部 ３２ｆ 突部 ３３ 現像ユニット ３４ 廃トナ−貯蔵部 ３９ 着脱ガイド ４０ 清掃部材 ４１ 係止部 13 Charger 14 Developing device 18 Optical writer 32 Cylinder lens 32e Finger rest part 32f protrusion 33 Developing unit 34 Waste toner storage section 39 Attachment and detachment guide 40 Cleaning parts 41 Locking part
Claims (5)
化して形成し、光書込み器からの光を透過するシリンダ
レンズを保持する電子写真装置の現像ユニットにおいて
、前記シリンダレンズをその長さ方向に引出自在に備え
てなる、電子写真装置の現像ユニット。1. In a developing unit of an electrophotographic apparatus that holds a cylinder lens that transmits light from an optical writer, the cylinder lens is formed integrally with the developing device and has a cylinder lens that has approximately the same lifespan as the developing device, and the length of the cylinder lens is A developing unit of an electrophotographic device that can be freely pulled out in any direction.
掛け部を設けてなる、請求項１に記載の電子写真装置の
現像ユニット。2. The developing unit for an electrophotographic apparatus according to claim 1, further comprising a finger hook provided at an end of the cylinder lens on the drawer side.
着脱ガイドを設けてなる、請求項１に記載の電子写真装
置の現像ユニット。3. The developing unit for an electrophotographic apparatus according to claim 1, further comprising an attachment/detachment guide for guiding attachment/detachment of the cylinder lens.
ク感を付与する突部と係止部とを設けてなる、請求項１
に記載の電子写真装置の現像ユニット。4. The cylinder lens according to claim 1, further comprising a protrusion and a locking portion that provide a click feeling when the cylinder lens is attached.
The developing unit of the electrophotographic apparatus described in .
ズ面を清掃する清掃部材を設けてなる、請求項１に記載
の電子写真装置の現像ユニット。5. The developing unit for an electrophotographic apparatus according to claim 1, further comprising a cleaning member for cleaning the lens surface when the cylinder lens is attached or detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070640A JPH04282661A (en) | 1991-03-11 | 1991-03-11 | Developing unit for electrophotographic copying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070640A JPH04282661A (en) | 1991-03-11 | 1991-03-11 | Developing unit for electrophotographic copying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04282661A true JPH04282661A (en) | 1992-10-07 |
Family
ID=13437451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3070640A Pending JPH04282661A (en) | 1991-03-11 | 1991-03-11 | Developing unit for electrophotographic copying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04282661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678125A (en) * | 1995-05-17 | 1997-10-14 | Ricoh Company, Ltd. | Image forming apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835574A (en) * | 1981-08-28 | 1983-03-02 | Canon Inc | Image forming device |
| JPS61144621A (en) * | 1984-12-18 | 1986-07-02 | Ricoh Co Ltd | Dustproof plate for optical unit |
| JPS6335013A (en) * | 1986-07-30 | 1988-02-15 | Yamatake Honeywell Co Ltd | Proximity switch |
| JPS63175874A (en) * | 1987-01-16 | 1988-07-20 | Ricoh Co Ltd | Optical writer for laser printer or the like |
| JPH02210373A (en) * | 1989-02-09 | 1990-08-21 | Ricoh Co Ltd | Optical scanner |
| JPH0331864A (en) * | 1989-06-28 | 1991-02-12 | Canon Inc | Process cartridge |
| JPH0333870A (en) * | 1989-06-30 | 1991-02-14 | Canon Inc | Image forming device |
-
1991
- 1991-03-11 JP JP3070640A patent/JPH04282661A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835574A (en) * | 1981-08-28 | 1983-03-02 | Canon Inc | Image forming device |
| JPS61144621A (en) * | 1984-12-18 | 1986-07-02 | Ricoh Co Ltd | Dustproof plate for optical unit |
| JPS6335013A (en) * | 1986-07-30 | 1988-02-15 | Yamatake Honeywell Co Ltd | Proximity switch |
| JPS63175874A (en) * | 1987-01-16 | 1988-07-20 | Ricoh Co Ltd | Optical writer for laser printer or the like |
| JPH02210373A (en) * | 1989-02-09 | 1990-08-21 | Ricoh Co Ltd | Optical scanner |
| JPH0331864A (en) * | 1989-06-28 | 1991-02-12 | Canon Inc | Process cartridge |
| JPH0333870A (en) * | 1989-06-30 | 1991-02-14 | Canon Inc | Image forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678125A (en) * | 1995-05-17 | 1997-10-14 | Ricoh Company, Ltd. | Image forming apparatus |
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