JPS5960448A - Electrophotographic copying machine - Google Patents
Electrophotographic copying machineInfo
- Publication number
- JPS5960448A JPS5960448A JP57171328A JP17132882A JPS5960448A JP S5960448 A JPS5960448 A JP S5960448A JP 57171328 A JP57171328 A JP 57171328A JP 17132882 A JP17132882 A JP 17132882A JP S5960448 A JPS5960448 A JP S5960448A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- recording paper
- drum support
- copying machine
- support frame
- 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
- 238000000034 method Methods 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 abstract description 2
- 108091008695 photoreceptors Proteins 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 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
- G03G21/1839—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
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は電子写真複写機の機体構造に関する。[Detailed description of the invention] The present invention relates to the body structure of an electrophotographic copying machine.
周知のように、最近の電子写真複写機に卦すでは、画像
処理プロセス機器の保守管理の便や“ジャム”した記録
紙を容易に取出すことができるようにするため、機体フ
レームから水平方向に引出すことができるドラム支持枠
に感光体ドラム及び画像処理プロセス機器を組付け、機
体フレーム中に傾動可能に支持された記録紙案内枠に記
録紙案内用の案内板を取付け、”ジャム”した記録紙を
取出す際に手動操作レバーで記録紙案内枠を感光体ドラ
ムから引離す構造が採用される場合がある。As is well known, in recent electrophotographic copying machines, the horizontal direction from the machine frame is designed to facilitate maintenance of image processing equipment and to easily remove jammed recording paper. The photosensitive drum and image processing equipment are assembled on a drum support frame that can be pulled out, and a guide plate for guiding the recording paper is attached to a recording paper guide frame that is tiltably supported in the machine frame. In some cases, a structure is adopted in which a manual operation lever is used to separate the recording paper guide frame from the photoreceptor drum when taking out the paper.
ところで、このような構造の機体においては、ドラム支
持枠が機体フレーム中に完全に押込まれたセット位置に
ないと、感光体ドラムやプロセス機器に正確な駆動力が
伝達されず、画像の濃淡や歪が起こり、記録紙案内枠を
適正なセット位置に位置することができず、記録紙の“
ジャム”や片向き搬送が起こる。このような問題は、ド
ラム支持枠や記録紙案内枠が完全なセット位置におかれ
なくとも、ユーザにとって外見的には完全なセット位置
にあるかのように錯覚されてしまうことが原因であり、
このような錯覚に基づいて村写機の運転が開始されてし
まうことに問題がある。By the way, in a machine with such a structure, if the drum support frame is not in the set position where it is completely pushed into the machine frame, accurate driving force will not be transmitted to the photoreceptor drum and process equipment, resulting in poor image density and darkness. Distortion occurs, and the paper guide frame cannot be positioned at the correct setting position, causing the paper to “
"Jam" or one-sided conveyance may occur.Such problems occur because even if the drum support frame and recording paper guide frame are not placed in the perfect set position, it appears to the user that they are in the perfect set position. This is caused by a misunderstanding,
There is a problem in that the village copying machine starts operating based on such an illusion.
本発明は、以上に述べたようなドラム支持枠及び記録紙
案内枠の位置不正がある場合には絶対に複写機が運転さ
れないような構造を提案するものである。The present invention proposes a structure in which the copying machine will never be operated if there is an incorrect position of the drum support frame and recording paper guide frame as described above.
以下、図面につ−て、本発明の実施例の詳細を説明する
。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は前蓋１を開放して示す本発明による電子写真複
写機を示し、複写機本体２には、前蓋１の閉鎖状態を感
知して前蓋１が開放されている場合に複写機の機能を停
止させる検出器即ちマイクロスイッチＭＳが取付けであ
る。即ち、このマイクロスイッチＭＳは前蓋１の内面の
突起３によって動作されるもので、その出力信号は第５
図に示す中央処理装ｆｉｌ ＯＰ Ｕに入力され、マイ
クロスイッチＭＳが前蓋１を検出しないとき中央処理装
置０１） Ｕは複写機のモータＭ１高電圧発生器Ｇ等の
運転を停止させる。FIG. 1 shows an electrophotographic copying machine according to the present invention with the front lid 1 open, and the copying machine main body 2 has a device that detects the closed state of the front lid 1 and makes a copy when the front lid 1 is open. A detector or microswitch MS is installed which stops the function of the machine. That is, this microswitch MS is operated by the protrusion 3 on the inner surface of the front cover 1, and its output signal is the fifth one.
When the microswitch MS does not detect the front cover 1, the central processing unit 01) U stops the operation of the copying machine's motor M1, high voltage generator G, etc.
複写機本体２の機体フレーム４には開放部５が形成され
、この開放部５中には案内レール６Ａ、６Ｂに沿って水
平方向手前（矢印Ｘで示す）に引出すことができるドラ
ム支持枠７が支持されている。ドラム支持枠７の内部に
は、第２図に示すように感光体ドラム８を中心として帯
電電極９、現像装置１０．給紙部上側案内板１１、クリ
ーニング装置１２等の画像処理プロセス機器が組付けら
れる。An open part 5 is formed in the body frame 4 of the copying machine main body 2, and a drum support frame 7 that can be pulled out in the horizontal direction (indicated by arrow X) along guide rails 6A and 6B is formed in the open part 5. is supported. Inside the drum support frame 7, as shown in FIG. 2, there are a charging electrode 9, a developing device 10. Image processing equipment such as a paper feed section upper guide plate 11 and a cleaning device 12 are assembled.
また、前記ドラム支持枠７の直下には、前記給紙部上側
案内板１１との間に記録紙通路を形成する給紙部下側案
内板１３を固定された記録紙案内枠１４が位置される。Furthermore, a recording paper guide frame 14 is positioned directly below the drum support frame 7 to which a paper feed lower guide plate 13 is fixed, which forms a recording paper path between it and the paper feed section upper guide plate 11. .
一端を支点軸１５で機体フレーム４に傾動可能に支持さ
れた記録紙案内枠１４の上面には、第２図に示すように
、感光体ドラム８の下部周面に臨まされる転写電４＠１
６及び分離電極１７、画像を転写された記録紙を定着装
置（図示せず）方向に案内する搬送部下側案内板１８が
配置される。前記搬送部下側案内板１８の下部には吸込
口１９を開設された平らたい真空箱２０が位置され、同
吸込口１９の直下には小型のブロワ−２１が組込まれる
。したがって、搬送部下側案内板１８の表面に開設され
た複数の真空口２２には弱い真空圧が作用され、同搬送
部下側案内板１８上を移動される記録紙はこの弱い真空
圧ら朝
によって搬送部下側案内板１８に引付へながら移動され
る。As shown in FIG. 2, on the upper surface of the recording paper guide frame 14 whose one end is tiltably supported by the body frame 4 with a fulcrum shaft 15, there is a transfer electrode 4@ facing the lower circumferential surface of the photoreceptor drum 8. 1
6, a separation electrode 17, and a transport lower guide plate 18 for guiding the recording paper onto which the image has been transferred toward a fixing device (not shown). A flat vacuum box 20 having a suction port 19 is placed below the lower conveyance guide plate 18, and a small blower 21 is installed directly below the suction port 19. Therefore, a weak vacuum pressure is applied to the plurality of vacuum ports 22 provided on the surface of the lower conveyor guide plate 18, and the recording paper moved on the lower conveyor guide plate 18 is exposed to this weak vacuum pressure. It is moved while being attracted to the lower conveyance guide plate 18.
前記記録紙案内枠１４の下には機体フレーム４に掛渡す
操作軸２３に固定される押上レバー２４が位置され、同
押上レバー２４によって記録紙案内枠１４は第１図のセ
ット位置に迫上げられる。A push-up lever 24 fixed to an operating shaft 23 that spans the machine body frame 4 is located below the recording paper guide frame 14, and the push-up lever 24 raises the recording paper guide frame 14 to the setting position shown in FIG. It will be done.
また、前記操作軸２３の軸端には記録紙案内枠１４を手
動操作で傾動するための手動操作レバー２５が固定され
る。Furthermore, a manual operating lever 25 is fixed to the shaft end of the operating shaft 23 for manually tilting the recording paper guide frame 14 .
本発明によれば、前記ドラム支持枠７と前記記録紙案内
枠１４は、第３図示のように互いに干渉できる枠構成と
される。即ち、ドラム支持枠７の左右側板２６．２７間
の内面間隔Ｌ１は記録紙案内枠工４の左右側板２８．２
９間の外面間隔Ｌ２よシも僅かに大きく定められ、記録
紙案内枠１４が実線水のセット位置に位置するとき、記
録紙案内枠１４の左右側板２８．２９の上端面ａがドラ
ム支持枠７の左右側板２６ 、２７の下端面すよシも上
方に位置する構造とされる。なお、記録紙案内枠１４の
左右側板２８．２９の上部外面に設けた突起３０．３１
は、ドラム支持枠７の左右側板２６゜２７が実線水のセ
ット位置から僅かにずれているときに、ドラム支持枠７
の水平方向の位ｆｉｔを修正するための案内カムである
。According to the present invention, the drum support frame 7 and the recording paper guide frame 14 have a frame structure that allows them to interfere with each other as shown in the third figure. That is, the inner surface distance L1 between the left and right side plates 26.27 of the drum support frame 7 is the same as the left and right side plates 28.2 of the recording paper guide frame 4.
The outer surface interval L2 between the recording paper guide frames 14 and 9 is also set slightly larger, and when the recording paper guide frame 14 is located at the solid line water set position, the upper end surfaces a of the left and right side plates 28 and 29 of the recording paper guide frame 14 are aligned with the drum support frame. The lower end surfaces of the left and right side plates 26 and 27 of 7 are also located above. Note that the projections 30 and 31 provided on the upper outer surfaces of the left and right side plates 28 and 29 of the recording paper guide frame 14
, when the left and right side plates 26 and 27 of the drum support frame 7 are slightly shifted from the solid line water setting position, the drum support frame 7
This is a guide cam for correcting the horizontal position.
一方、本発明によれば、前記手動操作レバー２５に面し
た前蓋１の内面に円弧状のじゃま板３２が設けられる。On the other hand, according to the present invention, an arc-shaped baffle plate 32 is provided on the inner surface of the front lid 1 facing the manual operation lever 25.
このじゃま板３２は手動操作レバ−２５の回動角度θ１
よりも僅かに小さな弧長θ２を有し、仮想線で示した手
動操作し／（−２５の不作動位置から実線水の作動位置
直前まで伸びている。This baffle plate 32 has a rotation angle θ1 of the manual operation lever 25.
It has an arc length θ2 slightly smaller than the arc length θ2, and extends from the manual operation/(-25 inactive position shown by the phantom line) to just before the solid line water activation position.
以上の説明から明らかなように、本発明による構造にお
いては、セット位置にある記録紙案内枠１４の左右側板
２８．２９によってドラム支持枠７は、第３図示のセッ
ト位置に鎖錠されるから、複写機の運転中にドラム支持
枠７が機体フレーム４外に出て重大事故の原因となるこ
とはない。また、ドラム支持枠７を機体フレーム４から
引出すには、手動操作レバー２５によって記録紙案内枠
１４を第３図の仮想線水の位置に下降した後、ドラム支
持枠７を引出せばよいが、ドラム支持枠７が一点鎖線示
の不完全な位置に戻されると、記録紙案内枠工４をセッ
ト位置に戻す場合にその給紙部下側案内板１３にドラム
支持枠７の右側板２７の下面が衝合する。このため、手
動操作レバー２５が作動位置に完全に戻らないので、前
蓋１を閉じる際にじゃま板３２が手動操作レバー２５に
接触し、中央処理装置ＣＰＵが動作せず、複写機の運転
を再開することができない。As is clear from the above description, in the structure according to the present invention, the drum support frame 7 is locked in the set position shown in the third figure by the left and right side plates 28 and 29 of the recording paper guide frame 14 in the set position. During operation of the copying machine, the drum support frame 7 will not come out of the machine frame 4 and cause a serious accident. In addition, in order to pull out the drum support frame 7 from the body frame 4, it is sufficient to lower the recording paper guide frame 14 to the position of the virtual line in FIG. 3 using the manual operation lever 25, and then pull out the drum support frame 7. When the drum support frame 7 is returned to the incomplete position shown by the one-dot chain line, when the recording paper guide frame 4 is returned to the set position, the bottom surface of the right side plate 27 of the drum support frame 7 is attached to the lower paper feed guide plate 13. collide. For this reason, the manual operation lever 25 does not return completely to the operating position, so the baffle plate 32 comes into contact with the manual operation lever 25 when the front cover 1 is closed, and the central processing unit CPU does not operate and the operation of the copying machine is interrupted. Unable to restart.
よって、操作員はドラム支持枠７及び／または記録紙案
内枠１４の位置が不正確であることを知ることができる
。Therefore, the operator can know that the position of the drum support frame 7 and/or the recording paper guide frame 14 is incorrect.
結局、本発明によれば、ドラム支持枠や記録紙案内枠の
位置不正による複写機の誤動作を完全に防止できる。After all, according to the present invention, malfunctions of the copying machine due to incorrect positioning of the drum support frame and the recording paper guide frame can be completely prevented.
第１図は本発明による電子写真複写機の全体斜面図、第
２図はドラム支持枠と記録紙案内枠との関係を示した分
解斜面図、第３図は本発明による電子写真複写機の機体
内部の断面図、第４図は手動操作レバーとじゃま板の関
係を示す説明図、第５図は本発明の電子写真複写機のブ
ロック線図である。
１・・・前蓋、 ２・・・複写機本体、７・・
・ドラム支持枠、１４・・・記録紙案内枠、２５・・・
手動操作レバー、３２・・・じゃま板、ＭＳ・・・マイ
クロスイッチ。
第３図
第４図
第５図FIG. 1 is an overall perspective view of an electrophotographic copying machine according to the present invention, FIG. 2 is an exploded perspective view showing the relationship between a drum support frame and a recording paper guide frame, and FIG. 3 is an exploded perspective view of an electrophotographic copying machine according to the present invention. FIG. 4 is an explanatory diagram showing the relationship between the manual operation lever and the baffle plate, and FIG. 5 is a block diagram of the electrophotographic copying machine of the present invention. 1... Front lid, 2... Copying machine body, 7...
・Drum support frame, 14... Recording paper guide frame, 25...
Manual operation lever, 32... baffle board, MS... micro switch. Figure 3 Figure 4 Figure 5
Claims (1)
できるドラム支持枠に、感光体ドラム及び画像処理用の
プロセス機器の少なくとも一部を組付け、前記ドラム支
持枠の引出方向に直角な垂直面内で傾動可能に前記機体
フレーム中に支持された記録紙案内・枠に、記録紙の搬
送路の一部を形成する案内板を設け、機体フレームに組
付けた手動操作レバーにより記録紙案内枠を上昇位置に
傾動セットする電子写真複写機において、前記ドラム支
持枠と前記記録紙案内枠を互いに干渉できる構造として
ドラム支持枠が完全なセット位置になり限シ記録紙案内
枠を完全なセット位置に移動できない状態とし、前記手
動操作レバーに臨んだ機体前蓋の内面にじゃま板を設け
て手動操作レバーが完全なセット位置にあるときにのみ
機体前蓋を閉鎖できる状態にし、前記機体前蓋の閉鎖状
態を感知する検出器が閉鎖状態を検出しているときにの
み複写機を運転できるようにした電子写真複写機。1) A photosensitive drum and at least a part of the process equipment for image processing are assembled to a drum support frame that can be pulled out horizontally from the body frame of the copying machine, and a vertical plane perpendicular to the direction in which the drum support frame is pulled out. A guide plate forming a part of the recording paper conveyance path is provided on the recording paper guide/frame which is tiltably supported within the body frame, and the recording paper guide frame is moved by a manual operation lever assembled to the body frame. In an electrophotographic copying machine that tilts and sets the drum support frame to a raised position, the drum support frame and the recording paper guide frame have a structure that allows them to interfere with each other. A baffle plate is provided on the inner surface of the front lid of the fuselage facing the manual operation lever so that the front lid of the fuselage can be closed only when the manual operation lever is in the fully set position. An electrophotographic copying machine that allows the copying machine to operate only when a detector detects a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57171328A JPS5960448A (en) | 1982-09-30 | 1982-09-30 | Electrophotographic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57171328A JPS5960448A (en) | 1982-09-30 | 1982-09-30 | Electrophotographic copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5960448A true JPS5960448A (en) | 1984-04-06 |
Family
ID=15921193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57171328A Pending JPS5960448A (en) | 1982-09-30 | 1982-09-30 | Electrophotographic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5960448A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626743U (en) * | 1985-06-26 | 1987-01-16 | ||
| JPS6217761A (en) * | 1985-07-16 | 1987-01-26 | Ricoh Co Ltd | Image forming device |
| JP2002248834A (en) * | 2001-02-23 | 2002-09-03 | Ricoh Co Ltd | Interlock, and imaging apparatus with the same |
| JP2004109408A (en) * | 2002-09-18 | 2004-04-08 | Ricoh Co Ltd | Image forming apparatus |
| JP2006098492A (en) * | 2004-09-28 | 2006-04-13 | Canon Inc | Image forming apparatus |
-
1982
- 1982-09-30 JP JP57171328A patent/JPS5960448A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626743U (en) * | 1985-06-26 | 1987-01-16 | ||
| JPS6217761A (en) * | 1985-07-16 | 1987-01-26 | Ricoh Co Ltd | Image forming device |
| JP2002248834A (en) * | 2001-02-23 | 2002-09-03 | Ricoh Co Ltd | Interlock, and imaging apparatus with the same |
| JP2004109408A (en) * | 2002-09-18 | 2004-04-08 | Ricoh Co Ltd | Image forming apparatus |
| JP2006098492A (en) * | 2004-09-28 | 2006-04-13 | Canon Inc | Image forming apparatus |
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