JPH05173394A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPH05173394A JPH05173394A JP3338347A JP33834791A JPH05173394A JP H05173394 A JPH05173394 A JP H05173394A JP 3338347 A JP3338347 A JP 3338347A JP 33834791 A JP33834791 A JP 33834791A JP H05173394 A JPH05173394 A JP H05173394A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- fixing device
- closing member
- photoconductor
- transfer
- 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
Landscapes
- Fixing For Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Control Or Security For Electrophotography (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、感光体の下側に光書き
込み手段を設け、上側に転写紙の搬送路を設けた電子写
真装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic apparatus in which an optical writing means is provided on the lower side of a photoconductor and a transfer paper conveyance path is provided on the upper side.
【０００２】[0002]
【従来の技術】従来、感光体と、該感光体の下側に配置
される光書き込み手段と、前記感光体の上側において給
紙装置より前記感光体の転写位置へ転写紙を搬送する搬
送路並びに転写位置より定着装置の入口へ転写紙をガイ
ド部材による規制なく搬送する定着搬送路と、定着装置
と、空気を排出する排気ファンとを有し、感光体上に帯
電、露光、現像により形成された可視像を転写紙に転写
手段により転写し、定着装置により定着する電子写真装
置においては、装置本体の小型化のため、並びに転写位
置と定着装置との間における転写紙の搬送の安定化のた
めに、転写位置と定着装置との間の距離を短くするよう
に考慮されていた。しかし、転写位置における転写手段
に対しては感光体が隣接しており、定着装置が近くなる
と、感光体が熱の影響を受けて劣化しやすくなる。そこ
で排気ファンを設け、感光体の近くに空気流を形成して
冷却効果を高めることが行われた。感光体の近くに空気
流を形成すると、冷却効果は得られるが、転写位置から
定着装置への定着搬送路における転写紙に空気流が作用
し、転写紙のジャムや定着装置の入口に突入する際のシ
ョックによりブラックラインジターを生じたりして転写
紙の搬送性に問題を生じた。2. Description of the Related Art Conventionally, a photoconductor, an optical writing means disposed below the photoconductor, and a transport path for transporting a transfer sheet from a paper feeding device to a transfer position of the photoconductor above the photoconductor. In addition, it has a fixing conveyance path for conveying the transfer paper from the transfer position to the entrance of the fixing device without restriction by a guide member, a fixing device, and an exhaust fan for discharging air, and is formed on the photoconductor by charging, exposing, and developing. In the electrophotographic apparatus in which the formed visible image is transferred to the transfer paper by the transfer unit and fixed by the fixing device, the transfer paper is stably conveyed between the transfer position and the fixing device for downsizing of the main body of the apparatus. For this reason, it has been considered to shorten the distance between the transfer position and the fixing device. However, the photoconductor is adjacent to the transfer unit at the transfer position, and when the fixing device is close to the photoconductor, the photoconductor is easily affected by heat and deteriorates. Therefore, an exhaust fan is provided to form an air flow near the photoconductor to enhance the cooling effect. If an airflow is formed near the photoconductor, a cooling effect can be obtained, but the airflow acts on the transfer paper in the fixing conveyance path from the transfer position to the fixing device, and the transfer paper jams or enters the entrance of the fixing device. Due to the shock at the time, black line jitter was generated, which caused a problem in transportability of the transfer paper.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記の問題
点を解消し、感光体への熱影響がなく、転写紙の搬送性
が良好であり、小型で安定した画像品質並びに搬送性を
得ることのできる電子写真装置を提供することを課題と
している。SUMMARY OF THE INVENTION The present invention solves the above problems, has no thermal influence on the photoconductor, has good transfer paper transportability, and is compact and provides stable image quality and transportability. An object is to provide an obtainable electrophotographic apparatus.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記の課題
を、感光体と、該感光体の下側に配置される光書き込み
手段と、前記感光体の上側において給紙装置より前記感
光体の転写位置へ転写紙を搬送する搬送路並びに転写位
置より定着装置の入口へ転写紙をガイド部材による規制
なく搬送する定着搬送路と、定着装置と、空気を排出す
る排気ファンとを有し、感光体上に帯電、露光、現像に
より形成された可視像を転写紙に転写手段により転写
し、定着装置により定着する電子写真装置において、前
記定着装置の入口を開閉する第１開閉部材と、前記感光
体と定着装置との間に形成される排気路を前記定着搬送
路の下側において開閉する第２開閉部材とを設けたこと
を特徴とする電子写真装置により解決した。SUMMARY OF THE INVENTION The present invention solves the above problems by a photoconductor, an optical writing unit disposed below the photoconductor, and a photoconductor on the upper side of the photoconductor from a paper feeding device. A transfer path for transferring the transfer sheet to the transfer position, a fixing transfer path for transferring the transfer sheet from the transfer position to the entrance of the fixing device without restriction by a guide member, the fixing device, and an exhaust fan for discharging air. In an electrophotographic apparatus in which a visible image formed by charging, exposing, and developing on a photoconductor is transferred onto a transfer paper by a transfer means and fixed by a fixing device, a first opening / closing member for opening / closing an entrance of the fixing device, A second opening / closing member that opens and closes an exhaust passage formed between the photoconductor and the fixing device is provided below the fixing conveyance passage.
【０００５】[0005]
【作用】本発明により、感光体と定着装置の間に排気路
を形成し、転写紙を通紙しない待機時は第１開閉部材に
より定着装置の入口を閉じ、定着装置よりの熱の放射を
低減し、第２開閉部材により排気路を開放し、排気流を
形成することにより感光体に対する冷却効果を高め、定
着装置を転写位置に接近させても感光体の熱による劣化
を防止し、画像形成時の転写紙通紙時には第１開閉部材
は定着装置の入口を開放し、第２開閉部材は排気路を閉
鎖することにより排気流は定着搬送路に作用せず、転写
紙は円滑に定着装置の入口に突入することができ、転写
紙のジャムや衝突が防止された。定着装置を感光体に極
く接近させることができ、装置の小型化が可能になっ
た。According to the present invention, an exhaust path is formed between the photoconductor and the fixing device, and the entrance of the fixing device is closed by the first opening / closing member during the standby time when the transfer paper is not passed, so that the heat radiation from the fixing device is radiated. By reducing the second opening / closing member to open the exhaust passage and forming an exhaust flow, the cooling effect on the photoconductor is enhanced, and deterioration of the photoconductor due to heat is prevented even when the fixing device is brought close to the transfer position. The first opening / closing member opens the inlet of the fixing device and the second opening / closing member closes the exhaust passage when the transfer paper is passed during formation, so that the exhaust flow does not act on the fixing conveyance passage, and the transfer paper is fixed smoothly. It was able to plunge into the entrance of the device, preventing the transfer paper from jamming and colliding. Since the fixing device can be brought very close to the photoconductor, the device can be downsized.
【０００６】[0006]
【実施例】本発明の詳細を図に示す実施例に基づいて説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described based on the embodiments shown in the drawings.
【０００７】図１において、本発明に係る電子写真装置
の一例としてのレーザプリンタは上部本体１０ａと下部
本体１０ｂとを備える装置本体１０を有し、上部本体１
０ａは軸１１により下部本体１０ｂに対して上下開閉動
自在に支持される。In FIG. 1, a laser printer as an example of an electrophotographic apparatus according to the present invention has a device body 10 having an upper body 10a and a lower body 10b.
The shaft 0a is supported by a shaft 11 so as to be vertically openable and closable with respect to the lower body 10b.
【０００８】装置本体１０のほぼ中央部に感光体１２が
設けられる。感光体１２のまわりには矢印で示す周回動
方向に順に帯電手段１３、現像手段１４、転写手段１
５、クリーニング手段１６のように光書き込み手段を除
いた他の電子写真プロセス手段が配置される。電子写真
プロセスの下側に光書き込み手段１７が配置され、感光
体１２の上側には給紙装置１８より給紙ローラ１９によ
り給送され、レジストローラ対２１によりタイミングを
とられて送られる転写紙を転写手段１５による転写位置
に搬送する搬送路２０が形成される。A photoconductor 12 is provided at a substantially central portion of the apparatus body 10. Around the photosensitive member 12, a charging unit 13, a developing unit 14, and a transfer unit 1 are sequentially arranged in the circumferential rotation direction indicated by an arrow.
5. Other electrophotographic process means except the optical writing means, such as the cleaning means 16, are arranged. The optical writing unit 17 is arranged on the lower side of the electrophotographic process, and the transfer sheet is fed on the upper side of the photoconductor 12 from the sheet feeding device 18 by the sheet feeding roller 19 and is timely fed by the registration roller pair 21. A transport path 20 for transporting the sheet to the transfer position by the transfer unit 15 is formed.
【０００９】転写位置から送り出される転写後の転写紙
は定着搬送路２２により定着装置２３の入口２４にガイ
ド部材等の規制なしに搬送される。The transfer sheet after transfer, which is sent out from the transfer position, is conveyed to the entrance 24 of the fixing device 23 by the fixing conveyance path 22 without any restriction of guide members or the like.
【００１０】定着装置は定着ローラ２３ａと加圧ローラ
２３ｂとを有し、転写紙の可視像を定着し、排紙ローラ
２５により排紙部材２６に排出され、排紙ガイド２７に
案内されて排紙トレイ２８にスタックされる。The fixing device has a fixing roller 23a and a pressure roller 23b, fixes a visible image on a transfer sheet, is discharged to a sheet discharge member 26 by a sheet discharge roller 25, and is guided by a sheet discharge guide 27. The sheets are stacked on the discharge tray 28.
【００１１】感光体１２は周回動する間に表面を帯電手
段１３により一様に帯電され、光書き込み手段１７から
のレーザ光を照射して静電潜像を形成し、該潜像は現像
手段１４の傍らを通るときにトナーによって可視像化さ
れ、可視像は搬送路２０を搬送される転写紙の下面に転
写手段１５により転写され、定着装置２３により定着さ
れる。The surface of the photoconductor 12 is uniformly charged by the charging means 13 while rotating around the circumference, and the electrostatic latent image is formed by irradiating the laser beam from the optical writing means 17 with the developing means. A visible image is formed by the toner when passing by the side of 14, and the visible image is transferred by the transfer unit 15 to the lower surface of the transfer paper transported through the transport path 20 and fixed by the fixing device 23.
【００１２】感光体１２と定着装置２３のケーシングと
の間に排気路２９が形成され、排気ファン３０により排
気流が形成されて装置内の温度が高くなった空気を排出
し、感光体１２に対する冷却作用を行う。空気を積極的
に装置外に排出し、その際、排気ファン３０による排気
は排気路２９の外にも装置内に形成される各部の間隙を
通して空気流を形成する。An exhaust passage 29 is formed between the photoconductor 12 and the casing of the fixing device 23, and an exhaust flow is formed by an exhaust fan 30 to exhaust the air whose temperature has risen inside the device, and to the photoconductor 12. Performs cooling action. The air is positively discharged to the outside of the device, and at this time, the exhaust air from the exhaust fan 30 forms an air flow outside the exhaust passage 29 through the gaps of the respective parts formed inside the device.
【００１３】定着装置２３は図２に示すように、内部に
定着ヒータ２３ａを有する定着ローラ２３ａと加圧ロー
ラ２３ｂとを配置したケーシング２３ｃを有し、ケーシ
ング２３ｃの入口２４を開閉する第１開閉部材３１が枢
着ピン３２により入口の上側部分に対し上下開閉動可能
に支持される。As shown in FIG. 2, the fixing device 23 has a casing 23c in which a fixing roller 23a having a fixing heater 23a and a pressure roller 23b are arranged, and a first opening / closing for opening / closing an inlet 24 of the casing 23c. The member 31 is supported by a pivot pin 32 so as to be movable up and down with respect to the upper portion of the entrance.
【００１４】排気路２９は定着装置２３のケーシング２
３ｃとクリーニング手段１６のケースの延長部１６ａと
により形成され、定着装置２３と感光体１２との間の間
隙に排気流が形成されるようにしてある。排気路２９の
入口は定着搬送路２２の下側において第２開閉部材３３
により開閉可能である。第２開閉部材３３は枢着ピン３
４により定着装置２３のケーシング２３ｃに回動可能に
支持されている。The exhaust passage 29 is the casing 2 of the fixing device 23.
3c and the extension 16a of the case of the cleaning means 16 so that an exhaust flow is formed in the gap between the fixing device 23 and the photoconductor 12. The inlet of the exhaust path 29 is located below the fixing and conveying path 22 and has the second opening / closing member 33.
Can be opened and closed by. The second opening / closing member 33 is the pivot pin 3.
4 rotatably supports the casing 23c of the fixing device 23.
【００１５】装置の電源ＯＦＦ時や待機状態のように転
写紙を通紙しないときは、図３に示すように第１開閉部
材３１は入口２４を閉じる位置にばね等の力により保持
され、定着装置２３の内部の熱が入口等を通して外部へ
放出されるのを防止する。入口２４を閉じることにより
可成りの断熱効果が得られる。When the transfer paper is not passed through, such as when the apparatus is powered off or in the standby state, the first opening / closing member 31 is held by the force of a spring or the like at the position where the entrance 24 is closed, as shown in FIG. The heat inside the device 23 is prevented from being released to the outside through an inlet or the like. By closing the inlet 24, a considerable heat insulating effect is obtained.
【００１６】第１開閉部材３１が入口２４を閉鎖すると
きは第２開閉部材３３は排気路２９をばね等により開放
位置に保持する。このときは排気ファン３０による排気
流が排気路を流れ、感光体１２の付近の熱を奪い冷却効
果が得られる。When the first opening / closing member 31 closes the inlet 24, the second opening / closing member 33 holds the exhaust passage 29 in the open position by a spring or the like. At this time, the exhaust flow from the exhaust fan 30 flows through the exhaust passage, and the heat in the vicinity of the photoconductor 12 is removed to obtain a cooling effect.
【００１７】画像形成時の転写紙３４の通紙時は図４に
示すようにソレノイドやクラッチ等の作動により第１開
閉部材３１が開位置に、第２開閉部材３３が閉位置に移
動され、保持される。When the transfer paper 34 is passed during image formation, the first opening / closing member 31 is moved to the open position and the second opening / closing member 33 is moved to the closed position by the operation of the solenoid or the clutch as shown in FIG. Retained.
【００１８】開閉のいずれのときにばねの作用を用い又
はソレノイドやクラッチ等を利用するかは適宜選択する
ことができる。Whether to use the action of a spring or to use a solenoid, a clutch or the like at the time of opening and closing can be appropriately selected.
【００１９】転写紙３４は、排気路２９が閉じているた
め排気流の影響を受けることなく、入口２４を通って定
着ローラ２３ａに送られることができる。Since the exhaust passage 29 is closed, the transfer paper 34 can be sent to the fixing roller 23a through the inlet 24 without being affected by the exhaust flow.
【００２０】図２の例に対し図５に示すように第１開閉
部材３１′を第２開閉部材と１つの部材として形成し、
第２開閉部材を兼用した構造とすることもできる。この
場合、第１開閉部材３１′は入口２４の下側において枢
着ピン３２′により上下開閉動可能に支持される。In contrast to the example of FIG. 2, the first opening / closing member 31 'is formed as one member with the second opening / closing member as shown in FIG.
It is also possible to use a structure that also serves as the second opening / closing member. In this case, the first opening / closing member 31 ′ is supported below the entrance 24 by the pivot pin 32 ′ so that it can be opened and closed vertically.
【００２１】待機時には図６に示すように第１開閉部材
３１は入口２４を閉じる第１位置に移動し、このときは
排気路２９は開放される。画像形成による転写紙の通紙
時には図７に示すように第１開閉部材３１′は第２位置
に移動し保持され、このとき入口２４は開放され排気路
２９は閉鎖される。第１開閉部材３１′の開閉動はソレ
ノイド、クラッチ等適宜の切り換え手段を用いることが
できる。During standby, the first opening / closing member 31 moves to the first position for closing the inlet 24 as shown in FIG. 6, and the exhaust passage 29 is opened at this time. When the transfer sheet is passed through the image formation, the first opening / closing member 31 'is moved to and held at the second position as shown in FIG. 7, at which time the inlet 24 is opened and the exhaust passage 29 is closed. An appropriate switching means such as a solenoid or a clutch can be used for opening / closing the first opening / closing member 31 '.
【００２２】[0022]
【発明の効果】本発明により、転写紙を通紙しないとき
は定着装置の入口を閉鎖するため熱放射が制限され、し
かも排気路が開放されて排気流が形成されるので、感光
体にはほとんど熱が伝わらず、熱による劣化が防止され
た。しかも通紙時には定着装置の入口を開放し、排気路
を定着搬送路の下側において閉鎖するので、転写紙は排
気流の影響を受けることなく定着装置の入口に突入で
き、ジャムの発生や突入時の衝突が防止されショックに
よるブラックラインジターも防止された。したがって搬
送性も画像品質も良好になった。According to the present invention, the heat radiation is limited because the entrance of the fixing device is closed when the transfer paper is not passed, and the exhaust passage is opened to form the exhaust flow. Almost no heat was transferred and deterioration due to heat was prevented. Moreover, since the entrance of the fixing device is opened and the exhaust path is closed below the fixing conveyance path during paper passing, the transfer paper can rush into the entrance of the fixing device without being affected by the exhaust flow, and jams and rushes can occur. The collision at the time was prevented and the black line jitter due to the shock was also prevented. Therefore, the transportability and the image quality are improved.
【００２３】第１開閉部材と第２開閉部材を一つの部材
で形成すると、それだけコストダウンが可能になった。When the first opening / closing member and the second opening / closing member are formed by one member, the cost can be reduced accordingly.
【図１】本発明に係る電子写真装置の一例の全体概略図
である。FIG. 1 is an overall schematic view of an example of an electrophotographic apparatus according to the present invention.
【図２】感光体と定着装置の付近の部分断面図である。FIG. 2 is a partial cross-sectional view of the vicinity of a photoconductor and a fixing device.
【図３】図２の例における待機時の開閉部材の状態を示
す図である。FIG. 3 is a diagram showing a state of an opening / closing member during standby in the example of FIG.
【図４】図２の例の通紙時の開閉部材の状態を示す図で
ある。FIG. 4 is a diagram showing a state of an opening / closing member at the time of passing a sheet in the example of FIG.
【図５】図２の例に対する変形例の断面図である。5 is a cross-sectional view of a modified example of the example of FIG.
【図６】図５の例の図３に対応する図である。FIG. 6 is a diagram corresponding to FIG. 3 of the example of FIG.
【図７】図５の例の図４に対応する図である7 is a diagram corresponding to FIG. 4 of the example of FIG.
１０ 装置本体 １２ 感光体 １３ 帯電手段 １４ 現像手段 １５ 転写手段 １６ クリーニング手段 １７ 光書き込み手段 １８ 給紙装置 ２０ 搬送路 ２２ 定着搬送路 ２３ 定着装置 ２４ 入力 ２９ 排気路 ３１ 第１開閉部材 ３３ 第２開閉部材 10 Device Main Body 12 Photoreceptor 13 Charging Means 14 Developing Means 15 Transfer Means 16 Cleaning Means 17 Optical Writing Means 18 Paper Feeding Device 20 Conveying Path 22 Fixing Conveying Path 23 Fixing Device 24 Input 29 Exhaust Path 31 First Opening / Closing Member 33 Second Opening / Closing Element
Claims (2)
光書き込み手段と、前記感光体の上側において給紙装置
より前記感光体の転写位置へ転写紙を搬送する搬送路並
びに転写位置より定着装置の入口へ転写紙をガイド部材
による規制なく搬送する定着搬送路と、定着装置と、空
気を排出する排気ファンとを有し、感光体上に帯電、露
光、現像により形成された可視像を転写紙に転写手段に
より転写し、定着装置により定着する電子写真装置にお
いて、 前記定着装置の入口を開閉する第１開閉部材と、前記感
光体と定着装置との間に形成される排気路を前記定着搬
送路の下側において開閉する第２開閉部材とを設けたこ
とを特徴とする電子写真装置。1. A photoconductor, an optical writing unit arranged below the photoconductor, a transport path for transporting a transfer sheet from a paper feeding device to a transfer position of the photoconductor on the upper side of the photoconductor, and a transfer. A fixing conveyance path that conveys the transfer sheet from the position to the entrance of the fixing device without restriction by a guide member, a fixing device, and an exhaust fan that discharges air, and are formed on the photoconductor by charging, exposing, and developing. In an electrophotographic apparatus in which a visible image is transferred onto a transfer paper by a transfer unit and fixed by a fixing device, it is formed between a first opening / closing member that opens and closes an entrance of the fixing device, and the photoconductor and the fixing device. An electrophotographic apparatus, comprising: a second opening / closing member that opens and closes an exhaust path below the fixing and conveying path.
つの部材として形成され、前記定着装置の入口の閉開動
が同時に前記排気路の閉開動であることを特徴とする請
求項１に記載の電子写真装置。2. The first opening / closing member and the second opening / closing member are one.
The electrophotographic apparatus according to claim 1, wherein the electrophotographic apparatus is formed as one member, and the opening / closing movement of the inlet of the fixing device is the closing / opening movement of the exhaust path at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338347A JPH05173394A (en) | 1991-12-20 | 1991-12-20 | Electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338347A JPH05173394A (en) | 1991-12-20 | 1991-12-20 | Electrophotographic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05173394A true JPH05173394A (en) | 1993-07-13 |
Family
ID=18317295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3338347A Pending JPH05173394A (en) | 1991-12-20 | 1991-12-20 | Electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05173394A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002072750A (en) * | 2000-08-31 | 2002-03-12 | Canon Inc | Fixing apparatus and image forming apparatus |
| JP2002323822A (en) * | 2001-04-25 | 2002-11-08 | Canon Inc | Fixing device |
| JP2009237156A (en) * | 2008-03-26 | 2009-10-15 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2010113069A (en) * | 2008-11-05 | 2010-05-20 | Ricoh Co Ltd | Image forming apparatus and image forming method |
| JP2012014102A (en) * | 2010-07-05 | 2012-01-19 | Ricoh Co Ltd | Image forming apparatus |
| JP2016206511A (en) * | 2015-04-27 | 2016-12-08 | 京セラドキュメントソリューションズ株式会社 | Fixing device and image forming apparatus including the same |
-
1991
- 1991-12-20 JP JP3338347A patent/JPH05173394A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002072750A (en) * | 2000-08-31 | 2002-03-12 | Canon Inc | Fixing apparatus and image forming apparatus |
| JP4598933B2 (en) * | 2000-08-31 | 2010-12-15 | キヤノン株式会社 | Fixing device |
| JP2002323822A (en) * | 2001-04-25 | 2002-11-08 | Canon Inc | Fixing device |
| JP2009237156A (en) * | 2008-03-26 | 2009-10-15 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2010113069A (en) * | 2008-11-05 | 2010-05-20 | Ricoh Co Ltd | Image forming apparatus and image forming method |
| JP2012014102A (en) * | 2010-07-05 | 2012-01-19 | Ricoh Co Ltd | Image forming apparatus |
| US9201394B2 (en) | 2010-07-05 | 2015-12-01 | Ricoh Company, Ltd. | Image forming apparatus and air flow path therein |
| JP2016206511A (en) * | 2015-04-27 | 2016-12-08 | 京セラドキュメントソリューションズ株式会社 | Fixing device and image forming apparatus including the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6754458B2 (en) | Image forming apparatus with fixing unit having a shutter for covering same | |
| JPS62244065A (en) | Heat shielding air circulator for copying and printing machine | |
| JP2009192623A (en) | Image forming apparatus | |
| US8226084B2 (en) | Sheet-conveying device and image-forming apparatus including the same | |
| JPH04240681A (en) | Paper ejecting and carrying device for image forming device | |
| JPH05173394A (en) | Electrophotographic device | |
| JP2011158510A (en) | Image forming apparatus | |
| US20220353381A1 (en) | Image reading apparatus | |
| JP3398064B2 (en) | Image forming device | |
| US4452524A (en) | Electrostatographic reproducing apparatus with spring loaded paper path | |
| US9304460B2 (en) | Fixing device and image forming apparatus with fixing device that ensure effective cooling of induction heating unit | |
| JP4632815B2 (en) | Fixing apparatus and image forming apparatus | |
| JP2003241456A (en) | Image forming apparatus | |
| JP2010256615A (en) | Image forming apparatus | |
| JP5272420B2 (en) | Image forming apparatus | |
| JP2018146925A (en) | Developing device and image forming apparatus | |
| JP2018146924A (en) | Developing device, image forming apparatus, and air flow control device | |
| JP3167099U (en) | Image forming apparatus | |
| JPH03101780A (en) | Fixing device | |
| JP2002072832A (en) | Image forming device | |
| JP4693654B2 (en) | Image forming apparatus | |
| JP2009198847A (en) | Image forming apparatus | |
| JP2012194246A (en) | Image forming device | |
| JPH08171338A (en) | Image forming device | |
| JPH02116880A (en) | Fixing device for laser printer or the like |