JPH0326520Y2 - - Google Patents
Info
- Publication number
- JPH0326520Y2 JPH0326520Y2 JP10920685U JP10920685U JPH0326520Y2 JP H0326520 Y2 JPH0326520 Y2 JP H0326520Y2 JP 10920685 U JP10920685 U JP 10920685U JP 10920685 U JP10920685 U JP 10920685U JP H0326520 Y2 JPH0326520 Y2 JP H0326520Y2
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive drum
- unit
- developing unit
- axis
- copying machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、複写機本体の前側板に形成されたユ
ニツト挿抜用開口ならびに支持ガイド機構を介し
て、感光ドラムユニツトと現像ユニツトとが各別
にドラム軸芯方向に挿抜自在に設けられた複写機
の作像装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention allows the photosensitive drum unit and the developing unit to be separated from each other through an opening for insertion and removal of the unit and a support guide mechanism formed in the front plate of the main body of the copying machine. The present invention relates to an image forming device of a copying machine that is provided so as to be freely inserted and removed in the direction of the drum axis.
上記複写機の作像装置によれば、感光ドラムユ
ニツトや現像ユニツトの抜出しによつて、それら
に対するメンテナンスはもとより、それらの装填
部に対するメンテナンスが容易になるだけでな
く、異なる色の現像剤を収容した現像ユニツトに
交換することによつてモノカラー現像に対応でき
る利点がある。
According to the image forming device of the copying machine described above, by removing the photosensitive drum unit and the developing unit, it is not only easy to perform maintenance on them, but also to maintain the loading section for them, and it is also possible to accommodate developers of different colors. By replacing the developing unit with a new developing unit, there is an advantage that it can support monochrome development.
かかる複写機の作像装置において、前記ユニツ
ト挿抜用開口の側における感光ドラム軸と現像ロ
ーラ軸との軸間寸法と、前記ユニツト挿抜用開口
とは反対側における軸間寸法とを、常に一定に保
持することが複写性能面で重要であり、かかる要
望を満たし得る軸支構造として、実公昭60−2601
号公報に示されたものがある。 In such an image forming device of a copying machine, the distance between the photosensitive drum shaft and the developing roller shaft on the side of the unit insertion/extraction opening and the distance between the shafts on the side opposite to the unit insertion/extraction opening are always kept constant. This is important in terms of copying performance, and as a shaft support structure that can meet such demands, the
There is one shown in the publication.
このものは、複写機本体の前側板にユニツト挿
抜用開口を形成すると共に、感光ドラム軸と現像
ローラ軸の前記ユニツト挿抜用開口側部分に対す
る嵌合連結孔が形成された保持部材を、複写機本
体に着脱自在に設けたものであつて、前記嵌合連
結孔の孔芯間寸法つまり両軸の一端側軸間寸法を
軸他端側の軸間寸法と等しく設定しておけば、各
軸を各別に軸支する場合に比べて、煩わしい軸間
寸法調整の操作が全く不要になり、常に画質の良
い複写を期し得るものである。 In this device, an opening for inserting and removing the unit is formed in the front side plate of the copying machine main body, and a holding member in which a connecting hole is formed for the photosensitive drum shaft and the developing roller shaft on the side of the opening for inserting and removing the unit is attached to the copying machine. If the center-to-center dimension of the fitting connecting hole, that is, the center-to-center dimension on one end of both shafts, is set equal to the center-to-center dimension on the other end of the shaft, each shaft is removably attached to the main body. Compared to the case where each of the two shafts is supported separately, there is no need for troublesome operations for adjusting the dimensions between the shafts, and it is possible to always expect high-quality copies.
しかしながら、感光ドラムユニツトあるいは現
像ユニツトの何れを挿抜するにしても、その都度
前記複写機本体に対して保持部材を着脱しなけれ
ばならず、かつ、その操作には多少の技術が必要
で誰にでも簡単に行えるものでない欠点があつた
のである。
However, in order to insert or remove either the photosensitive drum unit or the developing unit, the holding member must be attached to and removed from the main body of the copying machine each time, and the operation requires some skill. However, there was a drawback that it was not easy to do.
本考案は、上記複写機の作像装置は、モノカラ
ー対応の面から、感光ドラムユニツトに比べて現
像ユニツトを挿抜することがはるかに多い点に着
目して、この現像ユニツトの挿抜ならびに位置固
定を、誰にでも簡単かつ容易に行えるようにし
て、複写機の使い勝手を向上させんことを目的と
している。 The present invention focuses on the fact that the developing unit is inserted and removed much more often than the photosensitive drum unit in the image forming device of the above-mentioned copying machine because it is compatible with monochrome color. The purpose is to improve the usability of copying machines by making it simple and easy for anyone to do.
上記目的を達成するために本考案は、冒頭に記
載した複写機の作像装置において、前記感光ドラ
ムユニツトの感光ドラム軸芯と現像ユニツトの現
像ローラ軸芯の前記開口側での軸間寸法を所定通
りに規定する軸間寸法規定部材を、ドラム軸芯方
向での移動によつて現像ユニツトとの連結が解除
される状態で両ユニツトにわたつて設けると共
に、該軸間寸法規定部材に操作用把手を形成し、
かつ、前記感光ドラムユニツト枠に止着される抜
止め固定部材を、前記現像ユニツトの抜出し可能
の状態で前記複写機本体の前側板に着脱自在に取
付けると共に、前記軸間寸法規定部材の現像ユニ
ツトに対する連結状態を付勢維持するスプリング
を該軸間寸法規定部材と前記固定部材との間に介
装して、該スプリグの付勢力に抗しての前記付勢
連結の解除下での軸間寸法規定部材の所定角回動
によつて現像ユニツトを挿抜できるようにすると
共に、前記複写機本体前側板に対する前記固定部
材の連結解除の状態で感光ドラムユニツトを挿抜
できるように構成した点に特徴がある。
In order to achieve the above object, the present invention provides an image forming apparatus for a copying machine described at the beginning, in which the distance between the shafts of the photosensitive drum of the photosensitive drum unit and the shaft of the developing roller of the developing unit on the opening side is adjusted. A center-to-center dimension defining member that defines a predetermined distance is provided across both units in a state where the connection with the developing unit is released by movement in the direction of the drum axis. form a handle,
Further, a retaining fixing member fixed to the photosensitive drum unit frame is removably attached to the front side plate of the copying machine main body in a state in which the developing unit can be pulled out, and the developing unit of the center-to-shaft dimension defining member is detachably attached. A spring that biases and maintains the connection between the shafts is interposed between the shaft-to-shaft dimension determining member and the fixing member, and the shaft-to-shaft distance is maintained when the biasing connection is released against the biasing force of the spring. A feature of the present invention is that the developing unit can be inserted and removed by rotating the dimension determining member by a predetermined angle, and the photosensitive drum unit can be inserted and removed when the fixing member is disconnected from the front side plate of the copying machine main body. There is.
以下、本考案の実施例を図面に基づいて説明す
ると、第１図は感光ドラムユニツト１と現像ユニ
ツト２から成る作像装置Ａの分解斜視図を示し、
第２図は作像装置Ａの水平断面を示す。そして、
第６図は作像装置Ａを装備した複写機を示すもの
であつて、原稿載置用のコンタクトガラス３と原
稿押え４を上部に備えた複写機本体５に、ドラム
軸芯を複写機前後方向に向ける状態で感光ドラム
ユニツト１を設けると共に、該ユニツト１に架設
の感光ドラム６のまわりに、現像ユニツト２、転
写装置８、複写紙分離装置９をその順に感光ドラ
ム６の回転方向Ｒに配置し、かつ、帯電装置７と
ドラムクリーニング装置１０を前記感光ドラムユ
ニツト１に備えさせると共に、複写機本体５の上
部空間に光学系移動式の露光装置１１を配設し、
そして、給紙カセツト１２内の複写紙を前記転写
装置８側に搬送する給紙搬送装置１３と、転写・
分離後の複写紙を定着装置１４に送給する排紙搬
送装置１５、及び、定着後の複写紙を排紙トレイ
１６に繰り出す排紙ローラ対１７を設けて成る。
Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 shows an exploded perspective view of an image forming apparatus A consisting of a photosensitive drum unit 1 and a developing unit 2.
FIG. 2 shows a horizontal cross section of the image forming device A. and,
FIG. 6 shows a copying machine equipped with an image forming device A, in which a drum shaft is attached to the copying machine body 5, which is equipped with a contact glass 3 for placing a document and a document presser 4 on the top. The photosensitive drum unit 1 is provided with the photosensitive drum unit 1 facing in the rotation direction R of the photosensitive drum 6, and the developing unit 2, the transfer device 8, and the copy paper separation device 9 are installed around the photosensitive drum 6 installed in the unit 1 in that order. and a charging device 7 and a drum cleaning device 10 are provided in the photosensitive drum unit 1, and an exposure device 11 with a movable optical system is disposed in the upper space of the copying machine main body 5,
A paper feed conveyance device 13 that conveys the copy paper in the paper feed cassette 12 to the transfer device 8 side, and a transfer
A paper discharge conveyance device 15 that feeds the separated copy paper to a fixing device 14 and a paper discharge roller pair 17 that feeds out the fixed copy paper to a paper discharge tray 16 are provided.
第１図に示すように、前記感光ドラムユニツト
１ならびに現像ユニツト２の夫々は、複写機本体
５の前側板（図外の前カバーを開放した状態で露
呈する。）１８に形成したユニツト挿抜用開口Ｂ
を通してドラム軸芯方向に挿抜自在である。 As shown in FIG. 1, each of the photosensitive drum unit 1 and the developing unit 2 is connected to a unit insertion/removal unit formed on the front side plate 18 of the copying machine main body 5 (exposed when the front cover (not shown) is opened). Opening B
It can be inserted and removed freely through the drum in the axial direction of the drum.
感光ドラムユニツト１の詳しくは、第１図〜第
４図に示すように、前記帯電装置７とクリーニン
グ装置１０を内蔵（図示せず。）するユニツト枠
１９の前後の面板１９ａ，１９ｂの内面に筒状ボ
スａ，ｂを連設して、前面板側のボスａにドラム
一端側の軸部ｃを嵌合させると共に、後面板側の
ボスｂと後面板１９ａとにわたつて筒状ブツシユ
ｄを設けて、このブツシユｄにドラム他端側の筒
状軸部ｅを内嵌させ、かつ、この軸部ｅに駆動ギ
ヤG1を止着させてある。 More specifically, as shown in FIGS. 1 to 4, the photosensitive drum unit 1 has inner surfaces of front and rear face plates 19a and 19b of a unit frame 19 that houses the charging device 7 and cleaning device 10 (not shown). The cylindrical bosses a and b are arranged in series, and the shaft part c on one end of the drum is fitted into the boss a on the front plate side, and the cylindrical bush d extends between the boss b on the rear plate side and the rear plate 19a. A cylindrical shaft portion e on the other end of the drum is fitted into the bush d, and a drive gear G1 is fixedly attached to the shaft portion e.
そして、複写機本体５側のドラム軸芯方向に延
びる一対のＬ字状レール２０，２０に対する嵌合
ガイドｆ，ｆを、前記ユニツト枠１９の上部両側
に設けて、該ガイドレール２０とガイドｆとによ
る支持ガイド機構Ｃ，Ｃを介して、当該感光ドラ
ムユニツト１をドラム軸芯方向に挿抜自在として
あり、かつ所定位置への挿入状態で、複写機本体
５の後側板２１に連設した支軸２２に前記筒状軸
部ｅが外嵌合されるようになつている。 Fitting guides f, f for a pair of L-shaped rails 20, 20 extending in the direction of the drum axis on the side of the copying machine main body 5 are provided on both sides of the upper part of the unit frame 19, and the guide rails 20 and guide f The photosensitive drum unit 1 can be freely inserted and removed in the direction of the drum axis via support guide mechanisms C and C, and when it is inserted into a predetermined position, a support connected to the rear plate 21 of the copying machine main body 5 is inserted. The cylindrical shaft portion e is externally fitted onto the shaft 22.
現像ユニツト２は、現像剤を収容するユニツト
枠２３の前後面板２３ａ，２３ｂにわたつて現像
ローラ２４のローラ軸２５，２６を軸架すると共
に、現像剤収容カートリツジ２７の装填部２８の
下方部位に撹拌具２９，３０（第６図参照）を設
けて成り、かつ、第５図に示すように、複写機本
体５側のドラム軸芯方向に延びる溝状ガイドレー
ル３１，３１に嵌合するガイドｇ，ｇをユニツト
枠２３の下面側に設けてあつて、これらレール３
１とガイドｇによるガイド機構Ｄ，Ｄを介して、
当該現像ユニツト２をドラム軸芯方向に挿抜自在
としてある。 The developing unit 2 has the roller shafts 25 and 26 of the developing roller 24 mounted across the front and rear plates 23a and 23b of the unit frame 23 that accommodates the developer, and is mounted below the loading section 28 of the developer storage cartridge 27. A guide comprising stirring tools 29 and 30 (see FIG. 6) and fitting into groove-shaped guide rails 31 and 31 extending in the direction of the drum axis on the copying machine main body 5 side, as shown in FIG. g, g are provided on the lower surface side of the unit frame 23, and these rails 3
1 and guide mechanisms D and D by guide g,
The developing unit 2 can be freely inserted and removed in the direction of the drum axis.
そして、前記ガイドｇ，ｇは、現像ユニツト挿
入方向ならびに給紙方向で夫々配置位相を異なら
せてあり、かつ、該ガイドｇ，ｇに対するレール
３１，３１の夫々は、案内終端側において感光ド
ラムユニツト側に偏奇する経路部分を有し、而し
て、案内終端側までは現像ローラ２４が感光ドラ
ム６からはなれていて、かつ、終端側において現
像ユニツト２の全体が感光ドラム６側に移行し
て、現像ローラ２４と感光ドラム６との間に所定
の〓間が形成されると共に、その状態で現像ユニ
ツト２を所定位置まで挿入することによつて、該
現像ユニツト２の現像ローラ軸２６が複写機本体
５の後側板２１に連設の筒状受具３２に内嵌合す
るようになつている。 The guides g, g are arranged in different phases in the developing unit insertion direction and the paper feeding direction, and the rails 31, 31 for the guides g, respectively, are arranged at different positions in the photosensitive drum unit at the guide end side. The developing roller 24 is separated from the photosensitive drum 6 until the end of the guide, and the entire developing unit 2 moves toward the photosensitive drum 6 at the end. A predetermined gap is formed between the developing roller 24 and the photosensitive drum 6, and by inserting the developing unit 2 to a predetermined position in this state, the developing roller shaft 26 of the developing unit 2 is rotated. It is adapted to be internally fitted into a cylindrical receiver 32 connected to the rear side plate 21 of the machine body 5.
さて、前記所定位置に挿入した感光ドラムユニ
ツト１ならびに現像ユニツト２の抜出しを阻止す
るための固定機構Ｅを、抜出し許容状態に切り換
え自在に設けてある。 Now, a fixing mechanism E for preventing the photosensitive drum unit 1 and the developing unit 2 inserted into the predetermined positions from being removed is provided so as to be able to be switched to a state allowing removal.
該固定機構Ｅを構成するに、前記感光ドラムユ
ニツト枠１９の前面板１９ａの外面側に、前記筒
状ボスａと同芯状の筒状ボス部ｈを膨出させると
共に、断面Ｌ字状の軸間寸法規定部材３３に、前
記現像ローラユニツト枠２３の前面板２３ａから
前方に突出させた現像ローラ軸２５と前記ボス部
ｈの夫々に外嵌する嵌合連結孔ｉ，ｊを、その孔
軸芯間寸法を前記後側板２１に連設の支軸２２と
受具３２との軸芯間寸法に一致させて形成し、か
つ、該軸間寸法規定部材３３の嵌合連結孔ｉ，ｊ
を現像ローラ軸２５とボス部ｈとに嵌合連結させ
た状態で、前記感光ドラムユニツト枠１９に形成
した凹部ｋ，ｋに嵌入するダボｍ，ｍを軸間寸法
規定部材３３に設けると共に、軸間寸法規定部材
３３の水平面部に操作用の把手３７を形成してい
る。 To configure the fixing mechanism E, a cylindrical boss portion h concentric with the cylindrical boss a is bulged on the outer surface side of the front plate 19a of the photosensitive drum unit frame 19, and a cylindrical boss portion h having an L-shaped cross section is formed. The inter-shaft dimension defining member 33 is provided with fitting connecting holes i and j which are fitted into the developing roller shaft 25 that projects forward from the front plate 23a of the developing roller unit frame 23 and the boss portion h, respectively. The center-to-center dimension is formed to match the center-to-center dimension of the supporting shaft 22 and the support 32 which are connected to the rear side plate 21, and the fitting connecting holes i, j of the center-to-center dimension defining member 33 are formed.
dowels m, m that fit into the recesses k, k formed in the photosensitive drum unit frame 19 in a state where the developing roller shaft 25 and the boss portion h are fitted and connected; A handle 37 for operation is formed on the horizontal surface portion of the inter-axle dimension defining member 33.
そして、前記ボス部ｈと同芯状の孔ｎを前面板
１９ａに形成すると共に、この孔ｎと同径の孔付
きブツシユｏを感光ドラム６に嵌着し、これらの
ボス部ｈ，孔ｎ、ブツシユｏに嵌入する軸３４
を、感光ドラムユニツト枠１９の筒部ｐ，ｐにビ
スS1止めされる固定部材３５に設け、かつ、該固
定部材３５に連設のピンｑを前側板１８の孔r1に
嵌合させると共に、前側板１８の他方の孔r2にビ
スS2を螺着し、更に、前記軸間寸法規定部材３３
と固定部材３５との間に圧縮スプリング３６を介
装してある。 Then, a hole n concentric with the boss h is formed in the front plate 19a, and a bush o with a hole having the same diameter as the hole n is fitted onto the photosensitive drum 6. , a shaft 34 that fits into the bushing o.
is provided on a fixing member 35 that is fixed to the cylindrical portions p, p of the photosensitive drum unit frame 19 with screws S1 , and a pin q connected to the fixing member 35 is fitted into the hole r1 of the front side plate 18. At the same time, a screw S 2 is screwed into the other hole r 2 of the front side plate 18, and then the inter-axle dimension defining member 33
A compression spring 36 is interposed between the fixing member 35 and the fixing member 35.
ここで、前記固定部材３５と現像ユニツト２と
はドラム軸芯方向で互いに重合せず、また、後述
する所定角回動下において前記軸間寸法規定部材
３３と現像ユニツト２も互いに重合しない構成に
なつている。 Here, the fixing member 35 and the developing unit 2 do not overlap each other in the direction of the drum axis, and the inter-axis dimension determining member 33 and the developing unit 2 also do not overlap each other under rotation at a predetermined angle, which will be described later. It's summery.
而して、前記感光ドラム軸６と現像ローラ２４
の軸間寸法を規定する部材３３を、それに形成の
把手３７を持つてスプリング３６の付勢力に抗し
て前方に引き寄せると、第３図に示すように、現
像ローラ軸２５と嵌合連結孔ｉならびに凹部ｋと
ダボｍの嵌合連結が解除されるのであり、この状
態で該軸間寸法規定部材３３をボス部ｈまわりで
所定角回動させると、第４図に仮想図示する如
く、現像ユニツト２に対する軸間寸法規定部材３
３のドラム軸芯方向における重合が解除されるこ
とになる。 Thus, the photosensitive drum shaft 6 and the developing roller 24
When the member 33 that defines the axis-to-shaft dimension is pulled forward against the biasing force of the spring 36 by holding the handle 37 formed thereon, as shown in FIG. The fitting connection between the concave portion k and the dowel m is released, and in this state, when the interaxial dimension defining member 33 is rotated by a predetermined angle around the boss portion h, as shown in the hypothetical diagram in FIG. Inter-axis dimension defining member 3 for developing unit 2
The polymerization in the direction of the drum axis of No. 3 is released.
この状態で現像ユニツト２の複写機外部への抜
出しが可能になり、これの抜出しによつて、該現
像ユニツト２に対するメンテナンスが容易にな
り、あるいは、異なる色の現像剤を収容した現像
ユニツトに交換することによつてモノカラー現像
に対応できるのである。 In this state, the developing unit 2 can be taken out to the outside of the copying machine, and by taking it out, maintenance of the developing unit 2 can be facilitated, or it can be replaced with a developing unit containing a different color developer. By doing so, it is possible to handle monochrome development.
そして、上記とは逆の手順によつて軸間寸法規
定部材３３を操作すれば、前記所定位置にある現
像ユニツト２を所定通りに固定できるのであり、
かつ、この固定状態（あるいは前記固定解除の状
態）でビスS2を取り外すと共に、軸間寸法規定部
材３３に形成の把手３７を前方に引き寄せると、
今度は感光ドラムユニツト１を複写機外部に抜出
すことができるのであり、この感光ドラムユニツ
ト１に対するメンテナンスが容易になる。 Then, by operating the inter-axis dimension defining member 33 in the reverse procedure to the above, the developing unit 2 at the predetermined position can be fixed in a predetermined manner.
Moreover, when the screw S 2 is removed in this fixed state (or the above-mentioned unlocked state), and the handle 37 formed on the interaxial dimension defining member 33 is pulled forward,
This time, the photosensitive drum unit 1 can be taken out to the outside of the copying machine, making maintenance of the photosensitive drum unit 1 easier.
勿論、感光ドラムユニツト１ならびに現像ユニ
ツト２の両者を抜出すこともでき、これによつて
これらの装填部に対するメンテナンス等が容易に
行えるのである。 Of course, both the photosensitive drum unit 1 and the developing unit 2 can be taken out, thereby making it easy to perform maintenance on the loading section.
尚、凹部ｋとダボｍとによる嵌合構造を省略す
るも良く、状ボス部ｈを省略して軸間寸法規定部
材３３の嵌合連結孔ｊを軸３４に嵌合させるも良
い。 Note that the fitting structure of the recess k and the dowel m may be omitted, or the boss h may be omitted and the fitting connection hole j of the inter-shaft dimension defining member 33 may be fitted to the shaft 34.
また、前記軸３４を感光ドラム６に連設するも
良い。 Further, the shaft 34 may be connected to the photosensitive drum 6.
更に、前記ボス部ｈに等価の部材を現像ユニツ
ト枠２３の現像ローラ軸２５まわりに膨出させ
て、これに嵌合連喉結孔ｉを連結させる構成にす
るも良い。 Further, a member equivalent to the boss portion h may be bulged around the developing roller shaft 25 of the developing unit frame 23, and the fitting connecting throat hole i may be connected to this member.
以上説明したように本考案による複写機の作動
装置は、感光ドラム軸と現像ローラ軸との軸間寸
法を所定通りに規定する部材によつて、所定位置
にある現像ユニツトを抜止め固定するものであり
ながら、この軸間寸法規定部材に連設の把手を持
つてこれをドラム軸芯方向に移動させると共に、
所定角回動させるだけの誰にでもできる簡単な操
作で、現像ユニツトを挿抜することができるよう
になり、かつ、感光ドラムユニツトについても実
施例で示したように、例えば１本のビスに対する
簡単な操作で楽に挿抜することが可能であり、全
体として、軸間寸法規定部材に把手を兼用構成し
て、この軸間寸法規定部材に現像ユニツトに対す
る固定機能と固定解除の機能を有せしめることに
よつて、挿抜する機会の多い現像ユニツトの挿抜
を誰にでも簡単容易に行えるようになり、複写機
の使い勝手を向上できるに至つたのである。
As explained above, the actuating device for a copying machine according to the present invention is a device that fixes the developing unit at a predetermined position so that it does not come out by means of a member that defines the distance between the photosensitive drum shaft and the developing roller shaft in a predetermined manner. However, while holding a handle connected to this center-to-center dimension determining member and moving it in the direction of the drum axis,
The developing unit can now be inserted and removed with a simple operation that anyone can perform by simply rotating it by a predetermined angle, and as for the photosensitive drum unit, as shown in the example, for example, a single screw can be easily removed. It is possible to insert and remove the developing unit easily with a simple operation, and as a whole, the shaft dimension determining member is configured to also serve as a handle, and this shaft dimension determining member has the function of fixing and releasing the fixing to the developing unit. Therefore, anyone can easily insert and remove the developing unit, which is often inserted and removed, and the usability of the copying machine can be improved.
図面は本考案の実施例を示し、第１図は作像装
置の分解斜視図、第２図は作像装置の水平断面
図、第３図は固定解除の状態を示す断面図、第４
図は作像装置の正面図、第５図は現像ユニツトの
挿抜説明図、第６図は複写機全体の縦断面図であ
る。
１…感光ドラムユニツト、２…現像ユニツト、
５…複写機本体、１８…前側板、３３…軸間寸法
規定部材、３５…固定部材、３６…スプリング、
３７…把手、Ｂ…ユニツト挿抜用開口、Ｃ，Ｄ…
支持ガイド機構。
The drawings show an embodiment of the present invention, in which FIG. 1 is an exploded perspective view of an image forming device, FIG. 2 is a horizontal sectional view of the image forming device, FIG. 3 is a sectional view showing an unlocked state, and FIG. 4 is a sectional view of the image forming device.
5 is a front view of the image forming apparatus, FIG. 5 is a diagram for explaining the insertion and removal of the developing unit, and FIG. 6 is a longitudinal sectional view of the entire copying machine. 1...Photosensitive drum unit, 2...Developing unit,
5... Copying machine main body, 18... Front side plate, 33... Inter-axis dimension defining member, 35... Fixing member, 36... Spring,
37...Handle, B...Unit insertion/extraction opening, C, D...
Support guide mechanism.
Claims (1)
用開口ならびに支持ガイド機構を介して、感光ド
ラムユニツトと現像ユニツトとを各別にドラム軸
芯方向に挿抜自在に設けた複写機の作像装置であ
つて、前記感光ドラムユニツトの感光ドラム軸芯
と現像ユニツトの現像ローラ軸芯の前記開口側で
の軸間寸法を所定通りに規定する軸間寸法規定部
材を、ドラム軸芯方向での移動によつて現像ユニ
ツトとの連結が解除される状態で両ユニツトにわ
たつて設けると共に、該軸間寸法規定部材に操作
用把手を形成し、かつ、前記感光ドラムユニツト
枠に止着される抜止め固定部材を、前記現像ユニ
ツトの抜出し可能の状態で前記複写機本体の前側
板に着脱自在に取付けると共に、前記軸間寸法規
定部材の現像ユニツトに対する連結状態を付勢維
持するスプリングを該軸間寸法規定部材と前記固
定部材との間に介装して、該スプリングの付勢力
に抗しての前記付勢連結の解除下での軸間寸法規
定部材の所定角回動によつて現像ユニツトを挿抜
できるようにすると共に、前記複写機本体前側板
に対する前記固定部材の連結解除の状態で感光ド
ラムユニツトを挿抜できるように構成してあるこ
とを特徴とする複写機の作像装置。 An image forming device for a copying machine in which a photosensitive drum unit and a developing unit are separately inserted and removed in the direction of the drum axis through an opening for insertion and removal of the units formed in the front side plate of the copying machine body and a support guide mechanism. Then, by moving in the direction of the drum axis, an axis-to-axis dimension defining member that defines the axis-to-center dimension on the opening side of the photosensitive drum axis of the photosensitive drum unit and the developing roller axis of the developing unit as specified. A retaining fixing member is provided across both units in a state in which the connection with the developing unit is released, an operating handle is formed on the shaft dimension defining member, and the retaining member is fixed to the photosensitive drum unit frame. is removably attached to the front plate of the copying machine main body in a state in which the developing unit can be pulled out, and a spring is attached to the center-to-center dimension determining member to maintain the connected state of the center-to-center dimension defining member to the developing unit. and the fixing member, the developing unit can be inserted and removed by rotating the inter-axis dimension determining member by a predetermined angle while the urging connection is released against the urging force of the spring. An image forming device for a copying machine, characterized in that the photosensitive drum unit can be inserted and removed in a state where the fixing member is disconnected from the front side plate of the copying machine main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10920685U JPH0326520Y2 (en) | 1985-07-17 | 1985-07-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10920685U JPH0326520Y2 (en) | 1985-07-17 | 1985-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6216956U JPS6216956U (en) | 1987-01-31 |
| JPH0326520Y2 true JPH0326520Y2 (en) | 1991-06-07 |
Family
ID=30987096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10920685U Expired JPH0326520Y2 (en) | 1985-07-17 | 1985-07-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326520Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2747710B2 (en) * | 1988-12-23 | 1998-05-06 | 京セラ株式会社 | Image forming device |
| JP5097236B2 (en) * | 2010-03-30 | 2012-12-12 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
-
1985
- 1985-07-17 JP JP10920685U patent/JPH0326520Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6216956U (en) | 1987-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4866482A (en) | Image forming device for electrostatic recording apparatus having a slidable replacement holding case | |
| US5041872A (en) | Image forming apparatus using a photosensitive drum selectively pivoting with an upper part of the housing | |
| US5406355A (en) | Process cartridge and image forming apparatus | |
| US5640229A (en) | Image forming apparatus having a positioning device for a developing unit | |
| EP0144056B1 (en) | An engagement mechanism for a developing means in an electrostatic copying machine | |
| CA1066757A (en) | Electrophotographic apparatus with detachable photoconductive drum | |
| JPH07234552A (en) | Image forming device | |
| JPS61279871A (en) | Image forming device having positioning mechanism for process cartridge | |
| US5309211A (en) | Process unit having two chambers for storing waste developer | |
| US5049945A (en) | Image forming apparatus with a simplified paper unjamming mechanism | |
| US6829453B2 (en) | Carrying apparatus and image forming apparatus including same in which the relative positioning of carrying rollers is automatically adjusted | |
| US4951093A (en) | Developing unit for an electrostatic recording apparatus | |
| JPH0326520Y2 (en) | ||
| JP2002174952A (en) | Supporting mechanism for development unit | |
| JP2659717B2 (en) | Image forming unit attaching / detaching device in image forming apparatus | |
| EP0230033B1 (en) | Cartridge unit for use in an image forming apparatus | |
| JPH0478888A (en) | Photosensitive body fitting structure of electrophotographing device | |
| JPH11315891A (en) | Rotor driving device | |
| JPH066368Y2 (en) | Electrophotographic device | |
| JPH068598Y2 (en) | Image forming device | |
| JPS61170758A (en) | Developing device | |
| JP3962970B2 (en) | Photosensitive drum support device for printing apparatus | |
| JP2662528B2 (en) | Developing device | |
| JPH01321226A (en) | Paper feed roller mechanism for image former | |
| JP3102693B2 (en) | Photoconductor unit of electrophotographic apparatus |