JPS62299865A - Process unit - Google Patents
Process unitInfo
- Publication number
- JPS62299865A JPS62299865A JP61143654A JP14365486A JPS62299865A JP S62299865 A JPS62299865 A JP S62299865A JP 61143654 A JP61143654 A JP 61143654A JP 14365486 A JP14365486 A JP 14365486A JP S62299865 A JPS62299865 A JP S62299865A
- Authority
- JP
- Japan
- Prior art keywords
- process unit
- waste toner
- toner container
- photosensitive drum
- mounting
- 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
- 238000000034 method Methods 0.000 title claims abstract description 66
- 239000002699 waste material Substances 0.000 claims abstract description 28
- 230000005484 gravity Effects 0.000 claims description 7
- 108091008695 photoreceptors Proteins 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003323 beak Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 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
- G03G21/16—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
- G03G21/1828—Prevention of damage or soiling, e.g. mechanical abrasion
- G03G21/1832—Shielding members, shutter, e.g. light, heat shielding, prevention of toner scattering
-
- 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
- G03G21/1633—Means to access the interior of the apparatus using doors or covers
-
- 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
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
- G03G21/1846—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks using a handle for carrying or pulling out of the main machine, legs of casings
-
- 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
- G03G2221/1618—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit
-
- 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
- G03G2221/1846—Process cartridge using a handle for carrying or pulling out of the main machine
Abstract
Description
【発明の詳細な説明】
４ 発明の詳細な説明
〔産業上の利用分野〕
本発明は電子写真方式の複写機、プリンタ等の画像形成
装置に係り、更に詳細にはプロセス要素の一部を内包し
画像形成装置本体に着脱可能としたプロセスユニットの
構造に関するものである。Detailed Description of the Invention] 4 Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an electrophotographic image forming apparatus such as a copying machine or a printer, and more specifically to an image forming apparatus including a part of process elements. The present invention relates to the structure of a process unit that can be attached to and detached from an image forming apparatus main body.
従来電子写真感光体上に帯電、光像露光工程を経て形成
した靜電潜偉を用いた粉体トナーで顕像化する複写機や
、レーザービームプリンター、ＬＯ８プリンター等の画
像形成装置が知られている。これら画像形成装置におい
て最近、感光体ドラム、帯電器、現像器、クリーニング
装置等のプロセス要素を一体のユニット形状（以後プロ
セスユニットと記す。）に構成しプロセスユニット全体
を消耗品とし交換可能とすることにより装置全体の小型
化全図り、専門知識を必要とするメインテナンスからユ
ーザを解放し次画像形成装置が提案され冥現している（
例えば特開昭５ｌ−２４３５）。Conventionally, image forming devices such as copying machines, laser beam printers, and LO8 printers that use powder toner to form images on an electrophotographic photoreceptor through a charging and light image exposure process have been known. There is. Recently, in these image forming apparatuses, process elements such as a photoreceptor drum, a charger, a developer, a cleaning device, etc. are configured into an integrated unit shape (hereinafter referred to as a process unit), and the entire process unit is considered a consumable item and can be replaced. As a result, the following image forming apparatuses have been proposed and realized, in which the overall size of the apparatus is reduced and the user is freed from maintenance that requires specialized knowledge.
For example, Japanese Patent Publication No. 51-2435).
かかるプロセスユニットは、ユーザーによる交換、運搬
の際に感光体ドラムの回動軸が重力方向（鉛１０方回）
に回き現像器もしくｒまクリーニング装置内のトナーが
片寄ることに起因する複写、印字不良やトナーの漏出、
飛散全防止ｒるため、取り扱いの際感光体ドラム回動軸
が水平となるよう、把手部材が形成されている。一般に
、前記把手部材’ｔ’ｆｆするプロセスユニットは、把
手部材の機能面から２棟に大別されろ。その一つは、プ
ロセスユニット着脱用の把手と運搬用のそれとが別嘴造
として形成されているもの、他の一つは、プロセスユニ
ット着脱用及び運搬用の把手が同一であるものである。When such a process unit is replaced or transported by a user, the rotation axis of the photoreceptor drum is rotated in the direction of gravity (10 times in the lead direction).
Copying, printing defects, and toner leakage caused by uneven toner in the developing device or cleaning device.
In order to completely prevent scattering, the handle member is formed so that the rotation axis of the photoreceptor drum is horizontal during handling. In general, the process unit that handles the handle member is roughly divided into two units based on the function of the handle member. One is that the handle for attaching and detaching the process unit and the handle for transportation are formed as separate beak structures, and the other is that the handle for attaching and detaching the process unit and the handle for transportation are the same.
これら２つのタイプのプロセスユニットには以Ｆ記す特
徴ケ有している。前者Ｗ＃遺のプロセスユニットは、着
脱及び運搬時に別々の把手によってプロセスユニットヲ
取ジ扱わなければならず、扱いが煩雑になる。かつ又保
る構造のプロセスユニットの豪くは、画像形成装置内に
おいて動作状態のプロセスユニット姿勢と、運搬時の姿
勢が感光体の回動軸が水平ではあるが概略９０°同転す
るため、現像器及びクリーニング装置内でトナーの移動
が発生し、プロセスユニット外へのトナーの漏出及び部
分的片寄りの危険性が免れない。−万後者購造のプロセ
スユニットは、着脱用、運搬用の把手が同一である几め
取り扱い、操作性は容易であるが前者同様画像形成装置
内での動作時と運搬時のプロセスユニットの姿勢が概ｑ
９０°回転するためトナーの漏出、片寄りの危険性が免
れない欠点を有していた。These two types of process units have the following characteristics. The former W# process unit must be handled using separate handles during attachment/detachment and transportation, making handling complicated. In addition, the process unit has a structure that maintains the rotational axis of the photoreceptor horizontally, but since the orientation of the process unit in the operating state in the image forming apparatus and the orientation during transportation are approximately the same by approximately 90 degrees, the rotation axis of the photoreceptor is horizontal. Toner movement occurs within the developing device and cleaning device, and there is an unavoidable risk of toner leakage outside the process unit and partial deviation. -Process units purchased in the latter type have the same handle for attaching, detaching, and transporting, making them easy to handle and operate; is about q
Since it rotates by 90 degrees, it has the disadvantage that there is an inevitable risk of toner leakage and unevenness.
本発明は上記欠点を考慮しプロセスユニットの装置本体
への装着時、着脱操作時、運搬時、及び装置本体から取
外し放置した状態でトナー漏出、飛散、片ｘｖのないプ
ロセスユニットを提供すること全目的とする。In consideration of the above drawbacks, the present invention aims to provide a process unit that is free from toner leakage, scattering, and debris when the process unit is attached to the apparatus main body, during attachment/detachment operations, during transportation, and when removed from the apparatus main body and left unattended. purpose.
上記目的を達成する几めに本発明においては、電子写真
プロセス要素の内少くとも像担持体とクリーナと廃トナ
ー容器を含み、現像器を含まず画像形成装置ｉ１に着脱
可能であるプロセスユニットにおいて、
廃トナー容器が像担持体よりも下方に位置する姿勢で装
置本体に装着されるとともに
装置本体からｉｌＶ外した状態で廃トナー容器が像担持
体よりも上方に位置する姿勢で底部に安定面ケ有し、該
安定面の垂直上方に該ノロセスユニットの塩４Ｌ％が存
在する如く購成したことｔ％徴とする。In order to achieve the above object, the present invention provides a process unit that includes at least an image bearing member, a cleaner, and a waste toner container among electrophotographic process elements, does not include a developing device, and is detachable from the image forming apparatus i1. , the waste toner container is attached to the apparatus main body in an attitude that it is located below the image carrier, and a stabilizing surface is attached to the bottom of the waste toner container in an attitude that the waste toner container is located above the image carrier when removed from the apparatus main body. and t% of the salt of the norocess unit is present vertically above the stable surface.
ロト図商に始づき本発明の一実雄側會説明する。 Starting with the Lotto Illustrator, I will explain the main aspects of the present invention.
瀉１図は、本発明に縁けるプロセスユニット金用い友画
像形成装宵の主要部品の概略を示す。図中１は、光導電
物質全感光体ドラムに構成した像担持体である。画儂形
成装醸本体に回動ｉＪ能に支承された前ｄＣ像担狩体が
矢印へ方同に回転駆動されルトキ、帝ｌｔ器２によって
ドラム表面が一様帯電される。この弗寛部分は、元１ｇ
号発生装省５によ！ｌ１元像μ光を受け、ドラム表囲に
静電潜像が形成される。この静電潜像は、６気ブラシを
形成する現像器４を通過するとき、トナーによって顕像
化される。このようにして形成され几トナー儂は、転写
器５によって図示しない転写紙スタッカーより感光体ド
ラム上のトナー像と同期して転写位置へ給紙された図示
しない転写紙上に転写される。Figure 1 schematically shows the main parts of an image forming apparatus that is a process unit used in accordance with the present invention. In the figure, reference numeral 1 denotes an image carrier constructed of a photoconductor drum made entirely of photoconductive material. The front dC image carrier supported by the rotary iJ function on the image forming unit is rotated in the direction of the arrow, and the surface of the drum is uniformly charged by the rotor 2. This Fukan portion is originally 1g
Issue No. 5! 11 original image μ light is received, and an electrostatic latent image is formed around the drum surface. This electrostatic latent image is visualized by toner when it passes through a developing device 4 forming a six-color brush. The thus formed toner image is transferred by the transfer device 5 onto a transfer sheet (not shown) fed from a transfer sheet stacker (not shown) to a transfer position in synchronization with the toner image on the photosensitive drum.
転写を終え九転写紙は、感光体ドラム１から分離され定
着器１０へ送り込まれ図示しない排紙トレイに排紙され
る。図中点線Ｂにより転写紙の径路を示しである。上記
の如く転写を終え交感光体ドラムの表向には、約５０〜
４０チ未転写トナーが残留しておりこの残留トナーは、
クリーナー１６にエフ除去されて廃トナー容器６に収納
される。After completing the transfer, the nine transfer sheets are separated from the photosensitive drum 1, sent to the fixing device 10, and discharged to a paper discharge tray (not shown). Dotted line B in the figure shows the path of the transfer paper. After the transfer is completed as described above, approximately 50 to
40 pieces of untransferred toner remain, and this residual toner is
The waste toner is removed by the cleaner 16 and stored in the waste toner container 6.
クリーニングを終えたドラム部分は、除電ランプ７によ
って一定レベルまで除電され次の作偉工程にそなえる。The drum portion that has been cleaned is neutralized to a certain level by a static eliminating lamp 7, and is prepared for the next polishing process.
本画像形成装置においては、プロセス要素の中で感光体
ドラム１と帯電器２と廃トナー容器６とを一体化してプ
ロセスユニット８ｔ−購成し、装置本俸に対し着脱ｎＪ
能としている。第２図は、本画像形成装置の前面カバー
９全開いて、プロセスユニット８を着脱する様子を示す
図であり図中同一部材は同一の符号を付す。前面カバー
９の内側には、転写器５と定着装置ｔ１０が固設されて
おり、全体として１５Ｔ動体１１？構成している。In this image forming apparatus, the photoreceptor drum 1, the charger 2, and the waste toner container 6 are integrated among the process elements, and a process unit 8t is purchased.
It is called Noh. FIG. 2 is a diagram showing how the front cover 9 of the image forming apparatus is fully opened and the process unit 8 is attached and detached, and the same members in the figure are given the same reference numerals. A transfer device 5 and a fixing device t10 are fixedly installed inside the front cover 9, and the total size of the moving body 11 is 15T. It consists of
可動体１１は支承軸１２によりｍ像形成装置の固定体１
３に支持されている。プロセスユニット８の着脱の際は
可動体１１を矢印Ｃ方回へ回動させ、固定体１６側に固
設されている図示しないガイド部材により案内支持され
ているプロセスユニット８を矢印り方向へ着脱させる。The movable body 11 is attached to the fixed body 1 of the m-image forming device by a support shaft 12.
It is supported by 3. When attaching or detaching the process unit 8, the movable body 11 is rotated in the direction of arrow C, and the process unit 8, which is guided and supported by a guide member (not shown) fixed to the fixed body 16, is attached or detached in the direction of the arrow. let
着脱操作は、把手１４を握り行なわれる、把手１４ｔＩ
′ｉ、プロセスユニット筐体と一体的に形成され筐体か
ら突出した形状で感光体ドラム１に対し廃トナー容器と
対問する位置に感光体ドラム１０回動軸方回に２伸びた
部材によって構成されている。該把手１４は、プロセス
ユニット８を画揮形ｈｙ：、装置から引き出し、プロセ
スユニット８の姿勢を変えること、かつ又持ち変えるこ
となく運搬することがｅｉＪ能な位置に形成されている
。つまフユーザ−は、プロセスユニット８の装着の際に
は、可動体１１の一部である前カバー９を開け、把手１
４を握り矢印り方向に引き出し運搬等の動作に移行する
が、自明な様に係る把手１４が形成されたプロセスユニ
ットは、自らの姿勢を変化させられることはない。The attachment/detachment operation is carried out by grasping the handle 14.
'i, by a member that is integrally formed with the process unit housing and protrudes from the housing and extends two times in the direction of the rotational axis of the photosensitive drum 10 at a position facing the waste toner container with respect to the photosensitive drum 1. It is configured. The handle 14 is formed at a position where it is possible to pull out the process unit 8 from the apparatus, change the attitude of the process unit 8, and transport it without changing its grip. When attaching the process unit 8, the handle user opens the front cover 9, which is a part of the movable body 11, and opens the handle 1.
The process unit 4 is gripped and pulled out in the direction of the arrow to move on to transportation, but as is obvious, the process unit on which the handle 14 is formed does not change its posture.
この友め、感光体ドラム１下部に設けられ几廃トナー容
器６内に回収され友廃トナーは、一方向への片寄り１飛
散やプロセスユニット外へ漏出することがない。また本
実施例によるプロセスユニットは、画像形成装置外に放
置するような場合においても、姿勢を変化することのな
い底面形状及び重心位置の構成となっている。The waste toner collected in the waste toner container 6 provided at the bottom of the photoreceptor drum 1 will not scatter in one direction or leak out of the process unit. Further, the process unit according to this embodiment has a bottom shape and a center of gravity that do not change its posture even when left outside the image forming apparatus.
すなわち廃トナー容器底面は平坦な面であり、プロセス
ユニットの重心は上記底面の垂直上方に存在する如＜Ｗ
成されている。′そのため上記底面を下にして放置する
とプロセスユニットは別れることなく安定して静電され
る。従って画像形成装置本体に装着され良状態でプロセ
スユニットは廃トナー容器が開口部を上にした姿勢でお
り、更に本体からの着脱操作時、運搬時、取外し放置時
とも上記姿勢が保たれる。その友め廃トナー容器が傾い
て（最悪の場合廃トナー容器が開口部を下方に向く等し
て）トナーが漏出し几９、飛散し７′Ｉ：、りして器内
を汚染することはない。又廃トナー容器内でトナーが片
寄り容器内に空孔が存在し、容器内に収納するトナー量
が安定せず所足のトナー量に達する前にあふれ出すとい
う工具ｅｔ−生じることもない。That is, the bottom surface of the waste toner container is a flat surface, and the center of gravity of the process unit is located vertically above the bottom surface.
has been completed. 'Therefore, if the process unit is left with its bottom facing down, the process unit will not be separated and will be stably electrostatically charged. Therefore, when installed in the main body of the image forming apparatus and in good condition, the process unit is in a position with the waste toner container facing upward, and this position is maintained even when the process unit is detached from the main body, transported, and left unattended. If the waste toner container tilts (in the worst case, the opening of the waste toner container faces downward), toner may leak out and scatter, contaminating the inside of the container. There isn't. In addition, there is no problem in which the toner is skewed in the waste toner container and there are holes in the container, and the amount of toner stored in the container is not stable and the toner overflows before reaching the required amount.
第３図には別の実施例のプロセスユニツｌＦ−示す。本
実施例では本体構成、動作は先の実施例と同様であり、
プロセスユニット底面に複数の突起６１〜３４を設ける
ことを特徴とする。すなわち平面を規定する少くとも３
カ所の突起で支持し、該突起で決まる多角形を安定面と
しこの垂直上方にプロセスユニットの重心が存在する如
く構成する。この場合はプロセスユニットを放置する面
が平坦でない場合でも揺れて不安定になることなく置く
ことができるという利点をＭする。更に上記突起にゴム
足を用いることによりより安定性が同上するとともに音
を発しないという利点も有する。FIG. 3 shows another embodiment of the process unit IF. In this embodiment, the main body configuration and operation are the same as those in the previous embodiment,
A feature is that a plurality of protrusions 61 to 34 are provided on the bottom surface of the process unit. i.e. at least 3 defining a plane
The process unit is supported by protrusions at several locations, and the polygon determined by the protrusions is used as a stable surface, and the center of gravity of the process unit is located vertically above the polygon. In this case, there is an advantage that even if the surface on which the process unit is left is not flat, it can be placed on it without shaking and becoming unstable. Furthermore, by using rubber feet for the projections, there is an advantage that the stability is improved as well as the fact that no sound is emitted.
史に該突起全装置本体装着時に本体への位置決めに用い
ることにより取付精度を同上させることができるという
利点も有する。It also has the advantage that the mounting accuracy can be improved by using all the protrusions for positioning on the main body when the protrusions are attached to the main body.
なお本発明におけるプロセスユニットにおいては廃トナ
ー量の変化とともに重心の位置は変化するがいかなるト
ナー量においても上述の重心条件全満足することが望ま
しい。Note that in the process unit of the present invention, the position of the center of gravity changes as the amount of waste toner changes, but it is desirable that all of the conditions for the center of gravity described above be satisfied regardless of the amount of toner.
以上述べたように、本発明においてはプロセスユニット
が廃トナー容器底面を下にし、廃トナー容器開口が上方
に同く如き姿勢で装置本体への装着、脱着、運搬、放置
が付われる友め、トナーの漏出、飛散、片″４ｆりが無
いプロセスユニットを実現できるという効果を有する。As described above, in the present invention, the process unit is attached to the main body of the apparatus, removed, transported, and left in the same position with the bottom of the waste toner container facing down and the opening of the waste toner container facing upward. This has the effect of realizing a process unit that is free from toner leakage, toner scattering, and 4f off-cuts.
ｗＩ、１図は本発明のプロセスユニットを適用した画像
形成装置の断曲睨明図。第２図はプロセスユニットの着
脱方法を説明する図、第５図は別の実施例を示すプロセ
スユニット斜視図。
１・・・偉担持体
４・・・現像器
６・・・廃トナー容器
８・・・プロセスユニット
１６・・クリーナ
３１．５２．５５．５４・・・突起
以上
出奉人セイコーエプソン株式会社
Ｉ６ クリープwI, Figure 1 is a cross-sectional perspective view of an image forming apparatus to which the process unit of the present invention is applied. FIG. 2 is a diagram illustrating a method of attaching and detaching the process unit, and FIG. 5 is a perspective view of the process unit showing another embodiment. 1... Supporting body 4... Developing device 6... Waste toner container 8... Process unit 16... Cleaner 31.52.55.54... Protrusion or above person Seiko Epson Corporation I6 creep
Claims (1)
と廃トナー容器を含み、現像器を含まず画像形成装置に
着脱可能であるプロセスユニットにおいて 廃トナー容器が像担持体よりも下方に位置する姿勢で装
置本体に装着されるとともに 装置本体から取外した状態で廃トナー容器が像担持体よ
りも下方に位置する姿勢で底部に安定面を有し、該安定
面の垂直上方に該プロセスユニットの重心が存在する如
く構成したことを特徴とするプロセスユニット。[Claims] In a process unit that includes at least an image carrier, a cleaner, and a waste toner container among electrophotographic process elements, does not include a developing device, and is removably attached to an image forming apparatus, the waste toner container is separated from the image carrier. The waste toner container is attached to the apparatus main body in a position in which the image bearing member is located downward, and when removed from the apparatus main body, the waste toner container is located in a position below the image carrier, and has a stable surface at the bottom, and is vertically above the stable surface. A process unit characterized in that it is configured such that the center of gravity of the process unit is located at .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61143654A JPH07117802B2 (en) | 1986-06-19 | 1986-06-19 | Cleaning unit in image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61143654A JPH07117802B2 (en) | 1986-06-19 | 1986-06-19 | Cleaning unit in image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62299865A true JPS62299865A (en) | 1987-12-26 |
| JPH07117802B2 JPH07117802B2 (en) | 1995-12-18 |
Family
ID=15343818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61143654A Expired - Lifetime JPH07117802B2 (en) | 1986-06-19 | 1986-06-19 | Cleaning unit in image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07117802B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166360U (en) * | 1984-10-05 | 1986-05-07 | ||
| JPS6166361U (en) * | 1984-10-05 | 1986-05-07 |
-
1986
- 1986-06-19 JP JP61143654A patent/JPH07117802B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166360U (en) * | 1984-10-05 | 1986-05-07 | ||
| JPS6166361U (en) * | 1984-10-05 | 1986-05-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07117802B2 (en) | 1995-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |