JPS6086576A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPS6086576A JPS6086576A JP58193409A JP19340983A JPS6086576A JP S6086576 A JPS6086576 A JP S6086576A JP 58193409 A JP58193409 A JP 58193409A JP 19340983 A JP19340983 A JP 19340983A JP S6086576 A JPS6086576 A JP S6086576A
- Authority
- JP
- Japan
- Prior art keywords
- offset prevention
- fixing device
- prevention device
- offset
- roller
- 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
- 230000002265 prevention Effects 0.000 claims description 51
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 10
- 210000000078 claw Anatomy 0.000 description 8
- 108091008695 photoreceptors Proteins 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010186 staining Methods 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
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、オフセット防止液塗布用の着脱可能なオフセ
ット防止装置の交換を容易に巨つ安全にできるようにし
た定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a fixing device in which a detachable offset prevention device for applying offset prevention liquid can be easily and safely replaced.
仲）従来技術
嵐子寥真複写機やファクシミリなどに代表される静電記
録装置においては、原稿を露光走査して得られる反射光
または電気情報信号に基づいて原稿または眠気情報の静
電潜像を感光体まｆｃは誘電体上に形成し、静電潜像を
現像して可視像とし、この可視像を記録紙に転写した後
定着して記録像を形成している０第１図ｒｊ１１ｉ子写
真ｖＩ写機の概略構成を示しており、矢印方向に往復動
する原稿台１上に＠置した原稿Ｇを照明ランプ２で照射
し、［ＭＧからの反射光を矢印方向に回転する回転ドラ
ム３の感光体３ａ上に投射して感光体３ａ上に原稿Ｇの
静電潜像を形成する。回転ドラム３の周辺には感光体３
ａを一様に帯電する帯電極４と、現像装置５と、転写電
極６と、分離電極７と、除電電極８と、クリーニング装
置９とが順次に配置されている。(Naka) Prior Art Electrostatic recording devices, such as Arashiko photocopiers and facsimile machines, record electrostatic latent images of documents or drowsy information based on reflected light or electrical information signals obtained by exposing and scanning the document. The photoconductor fc is formed on a dielectric material, an electrostatic latent image is developed into a visible image, and this visible image is transferred to recording paper and then fixed to form a recorded image.0Figure 1 The schematic configuration of the rj11i child photo vI copying machine is shown. A document G placed on a document table 1 that reciprocates in the direction of the arrow is irradiated with an illumination lamp 2, and the reflected light from the MG is rotated in the direction of the arrow. It is projected onto the photoreceptor 3a of the rotating drum 3 to form an electrostatic latent image of the document G on the photoreceptor 3a. A photoreceptor 3 is placed around the rotating drum 3.
A charging electrode 4 for uniformly charging a, a developing device 5, a transfer electrode 6, a separation electrode 7, a static elimination electrode 8, and a cleaning device 9 are arranged in this order.
静電潜像に現像装置５により現像されて可視像とされ、
可視像はカセットなどの給紙装置１゜から搬送装置１】
により給紙された記録紙Ｐに転写電極６により転写され
る。転写後記録紙Ｐは分離電極７により感光体３ａがら
分離され、搬送装ｗ１２により定着装置１３に搬送され
、そこで定着されて排紙皿１４に排紙される。The electrostatic latent image is developed by a developing device 5 into a visible image,
The visible image is from paper feed device 1° such as a cassette to conveyance device 1]
The image is transferred to the recording paper P fed by the transfer electrode 6. After the transfer, the recording paper P is separated from the photoreceptor 3a by the separation electrode 7, transported to the fixing device 13 by the transport device w12, fixed there, and discharged onto the paper discharge tray 14.
電子写真複写機に使用される定着装置としては、赤外線
などの放射エネルギーでトナーを加熱定着する非接触定
着方式と、未定着トナーを担持する記録体に加熱部材を
接触させ加熱部材からの伝導熱でトナーを加熱し定着す
る接触式定着方式とがある。後者の方式による定着装置
としては、ヒータを内蔵し駆動源により駆動される加熱
ローラと、この加熱ローラに圧接して回転する加圧ロー
ラとにより構成され、加熱ローラからの熱によりトナー
像が記録紙上に加熱融着される熱ローラ型定着装置が一
般に知られており、この方式は熱効率がよく従って消費
電力が少なくてすみ、高速定着が可能であるなどの利点
があるため広く用いられている。The fixing devices used in electrophotographic copying machines include a non-contact fixing method that heats and fixes toner using radiant energy such as infrared rays, and a non-contact fixing method that heats and fixes toner using radiant energy such as infrared rays, and a non-contact fixing method that uses conductive heat from a heating member that contacts a recording medium that carries unfixed toner. There is a contact fixing method that heats the toner and fixes it. A fixing device using the latter method consists of a heating roller that has a built-in heater and is driven by a drive source, and a pressure roller that rotates in pressure contact with the heating roller, and the toner image is recorded by the heat from the heating roller. A heat roller type fixing device that heats and fuses paper onto paper is generally known, and this method is widely used because it has advantages such as high thermal efficiency, low power consumption, and high-speed fixing. .
この種の熱ローラ型定着装置においては、記録紙上の（
ナーが加熱ローラに付着するいわゆるオフセット現象を
起こして記録紙を汚したり、オフセットしたトナーの粘
着により加熱ローラに記録紙が巻き付いたりしやすいと
いう問題があった。In this type of heat roller type fixing device, (
There have been problems in that a so-called offset phenomenon occurs in which the toner adheres to the heating roller, staining the recording paper, and the recording paper tends to wrap around the heating roller due to the adhesion of the offset toner.
そこで、この問題を解決するために記録紙のトナー像を
有する面に直接接触する加熱ローラにシリコンオイルな
どのオフセット防止液を塗布する方法が古くから提案さ
れている（特公昭４１−２１４３０号）。オフセット防
止液を加熱ローラに塗布する方法としては、たとえば第
２図に示すようにヒータ２０ａを内蔵した加熱ローラ２
０に、フェルトなどの含油部材２１を介してオイルタン
ク２２内のシリコンオイル２３を供給する形式のものや
、オイルタンクがら含油部材を介してオイル塗布用のロ
ーラを加熱ローラに当接してシリコンオイルを供給する
形式のものがある（特開昭５４−３７７５２号）０とこ
ろが、オイルタンクやオイル塗布用の含油部材およびロ
ーラなどを定着装置に設けることは装置全体を大きくし
てしまい最近の装置の小型化の軸向に反する。また、こ
れらのオイルタンクやオイル塗布用部材は通常定着装置
にネジなどで固定きれるため、交換時の取りはずしに手
間がかかり取扱い上好ましくない。Therefore, in order to solve this problem, a method has long been proposed in which an anti-offset liquid such as silicone oil is applied to the heating roller that comes into direct contact with the surface of the recording paper that bears the toner image (Japanese Patent Publication No. 41-21430). . As a method of applying the anti-offset liquid to the heating roller, for example, as shown in FIG.
0, silicone oil 23 in the oil tank 22 is supplied through an oil-impregnated member 21 such as felt, or silicone oil is supplied by bringing an oil application roller into contact with a heating roller through an oil-impregnating member from the oil tank. However, providing an oil tank, an oil-containing member for applying oil, a roller, etc. to the fixing device increases the size of the entire device, which is difficult to do with modern devices. This goes against the direction of miniaturization. Further, since these oil tanks and oil application members are usually fixed to the fixing device with screws, it takes time and effort to remove them when replacing them, which is not preferable in terms of handling.
そこで、この点を解決するために第３図に示すように、
シリコンオイルなどのオフセット防止液な一定量含浸さ
せたフェルトから成るオフセット防止液含浸部材２４と
、このオフセット防止液含浸部材２４によりオフセット
防止液を加熱ローラ２０の表面に塗布する前に、一旦加
熱ローラ２０の表面・をクリーニングするフェルトから
成るクリーニング部材２５とを保持部材２６により一体
的に保持してオフセット防止装置２７を構成し、保持部
材２６上の案内板２６ａを加熱ローラ２０の上方のレー
ル２８内で加熱ローラ２０の軸方向（矢印方向）に摺動
可能とすることによりオフセット防止装置２７全体を定
着装置から着脱可能にしたものが提案されている。この
場合、オフセット防止液供給部材２４とクリーニング部
材２５とを交換するには、第４図（−ｒ）に示すように
複写一本体２９から定着装置３０全体を取り出した後一
定着装置３０の上蓋３０ａを開いた状態でオフセット防
止装置２７を軸方向手前に引き出して交換する方法があ
る。Therefore, in order to solve this problem, as shown in Figure 3,
An anti-offset liquid impregnated member 24 made of felt impregnated with a certain amount of an anti-offset liquid such as silicone oil is used. A cleaning member 25 made of felt and a cleaning member 25 made of felt for cleaning the surface of the heating roller 20 are integrally held by a holding member 26 to constitute an offset prevention device 27 . It has been proposed that the entire offset prevention device 27 is detachable from the fixing device by being able to slide in the axial direction (in the direction of the arrow) of the heating roller 20 within the fixing device. In this case, in order to replace the offset prevention liquid supply member 24 and the cleaning member 25, as shown in FIG. There is a method of replacing the offset prevention device 27 by pulling it out in the axial direction with the offset prevention device 27 opened.
また、第４図（ロ）に示すように複写機本体２９を上下
に分割できる２分割構造とし、２分割した状態（実線で
示す）で定着装置３０の上蓋３０ａを開いてからオフセ
ット防止装［４２７を手前に引き出して交換する方法が
ある。また、加熱ローラの上方に飛散したトナーや紙粉
による汚れをクリーニングするために加熱ローラ上にク
リーニング装置を圧着して設けた定着装置においては、
クリーニング装置を上方に動かしクリーニング装置と加
熱ローラとの圧着状態を解除してクリーニング装置を手
前に引き出して交換する方法がある（実開昭５８−１６
６６１号）。In addition, as shown in FIG. 4(b), the copying machine main body 29 has a two-part structure that can be divided into upper and lower parts, and when the top cover 30a of the fixing device 30 is opened in the divided state (shown by solid lines), the offset prevention device is opened. There is a way to pull out the 427 and replace it. In addition, in a fixing device in which a cleaning device is attached to the heating roller to clean dirt caused by toner and paper powder scattered above the heating roller,
There is a method of moving the cleaning device upward to release the pressure between the cleaning device and the heating roller, and then pulling the cleaning device forward and replacing it.
No. 661).
ところで、定着装置３０全体を複写機本体２９から翫り
出したり複写機本体２９を２分割するのはかなり手間が
かかる。また、加熱ｐ−ラ２０は定着時には内部のヒー
タにより約１６０Ｃ〜２００Ｃの高い温度に加熱される
ので、加熱ローラ２０の′ｔｎ度がまだ十分に下ってな
いときに定着装置３０の上蓋３０ａを開いてオフセット
防止装置２７を交換する際火傷をしてしまうおそれがあ
る。これに対して、オフセット防止装置２７を軸方向手
前側に引き出せるように軸方向手前側部分に側壁を設け
ないようにしても定着装置３０の上蓋３０ａを開かない
状態でオフセット防止装置２７を取りはずしたり装着す
ると、オフセット防止液供給部材２４とクリーニング部
材の各表面が加熱ローラ２０の表面とこす第１るため、
加熱ローラ２０の表面とこすれるため、加熱ローラ２０
の表面を傷つけてしまうことがめる。By the way, it is quite time-consuming to extend the entire fixing device 30 from the copying machine main body 29 or to divide the copying machine main body 29 into two parts. Furthermore, since the heating roller 20 is heated to a high temperature of approximately 160 to 200 C by an internal heater during fixing, the top cover 30a of the fixing device 30 is closed when the temperature of the heating roller 20 has not yet fallen sufficiently. There is a risk of getting burned when opening the offset prevention device 27 and replacing it. On the other hand, even if the side wall is not provided on the axially front side so that the offset preventing device 27 can be pulled out axially toward the front side, the offset preventing device 27 can be removed without opening the top cover 30a of the fixing device 30. When installed, the surfaces of the anti-offset liquid supply member 24 and the cleaning member rub against the surface of the heating roller 20.
Because it rubs against the surface of the heating roller 20, the heating roller 20
may damage the surface.
（ハ）発明の目的および構成
本発明は上記の点にかんがみてなされたもので一１互い
に圧接して回転する一対の定着用回転ローラと、前記回
転ｐ−ラの少なくとも一方にオフセット防止液を塗布す
る着脱可能なオフセット防止装置とを有する定着装置に
おいて、オフセット防止装置の交侠ヲ容易に且つ安全に
することを目的とし、そのためにオフセット防止装置は
装着時あるいＦｉ取り外し時には回転ローラの表面から
−ｒ間した第１の位置をとり、装着中は回転ローラの膜
面に圧接した第２の位１ａをとり、前記第１の位置にお
いてオフセット防止装置が回転ローラの軸方向手前側に
引き出し可能になるように構成したものである。(c) Object and structure of the invention The present invention has been made in view of the above-mentioned points, and includes: (11) a pair of rotating fixing rollers that rotate in pressure contact with each other; and at least one of the rotating p-rollers, which is coated with anti-offset liquid. In a fixing device having a removable offset prevention device for coating, the purpose is to make the interaction of the offset prevention device easy and safe, and for this purpose, the offset prevention device is installed on the surface of the rotating roller when attached or removed. The offset prevention device is pulled out to the front side in the axial direction of the rotating roller in the first position. It is designed to make it possible.
に）実施例 以下図面に基づいて本発明を説明する。) Example The present invention will be explained below based on the drawings.
第５図（イ）、（ロ）Ｆｉそれぞれ本発明による定着装
置の正面図および側面図を示しており、この実施例では
従来のように定着装置の上蓋を開いてオフセット防止装
置を取りはずすのではなく、オフセット防止装置２７だ
けを加熱ローラ２０の軸方向手前に引き出ぜるようにし
である。オフセット防止装置２７を定着装置３０に装着
するときには第５図（イ）に示すようにオフセット防止
装置２７を加熱ロー）２０の表面に接触しない位置で実
線矢印方向に押し込む。第５図（ロ）に示すようにオフ
セット防止装置２７を定着装置３０に装着したときには
オフセット防止装置２７が加熱ローラ２０の表面に圧接
する位置で圧着される。次に、オフセット防止装置２７
を定着装置３０から取りはずすときには、装着するとき
と同様第５図（イ）に示すようにオフセット防止装置２
７を加熱ローラ２０の表面に接触しない位置まで上げた
後破線矢印方向に引き出す。FIGS. 5(A) and 5(B) Fi respectively show a front view and a side view of the fixing device according to the present invention. In this embodiment, unlike the conventional method, the offset prevention device is removed by opening the top cover of the fixing device. Instead, only the offset prevention device 27 can be pulled out in front of the heating roller 20 in the axial direction. When attaching the offset prevention device 27 to the fixing device 30, as shown in FIG. When the offset prevention device 27 is attached to the fixing device 30 as shown in FIG. Next, the offset prevention device 27
When removing the offset prevention device 2 from the fixing device 30, as shown in FIG.
7 to a position where it does not touch the surface of the heating roller 20, and then pull it out in the direction of the broken line arrow.
次に、上記定着装置におけるオフセット防止装置の着脱
動作を具体的に説明する。Next, the operation of attaching and detaching the offset prevention device in the fixing device will be specifically explained.
第６図（イ）、仲）はそれぞれ本発明による定着装置の
着脱機構の具体例を示しており、各図において第３肉に
示したレール２８は樹脂性の防熱カバー３３の下面に固
定して取り付けられている。筐た、この防熱カバー３３
が定着装置３００手前側で上下動できるように、軸方向
奥側端部が支軸Ａにおいて回動自在に型持され、軸方向
手前側に着脱時操作するレバー３４が支軸Ｂで回動可能
に取り付けられている。支軸Ｂにはオフセット防止装置
ｖ１２７の装着後にし／（−３４の爪３４ａを定着装置
３０の係止爪３０ａに常に係合させておくためのバネ３
５が巻き付けである。オフセット防止装置２７を定着装
置ｄ３０に装着するときには第６図（イ）に示すように
し７り−３４を指で矢印方向に押し上げ、し／（−３４
の爪３４ａと定着装Ｍ３０の係止爪３０ａとの係合を解
除すると、防熱カバー３３が第６図（イ）に示すような
傾斜位置をとるＯこのとき、防熱カバー３３は図示して
ないトーションノｑ−により上方向の力２受けるので、
この位置が保持される。そこでオフセット防止装動、２
７の案内板２６ａをレール２８内に挿入してオフセット
防止装置２７全体を実線矢印方向に押し込む。オフセッ
ト防止装置２７の装着が完了したとき、２１〜６図（ロ
）に示すようにレバー３４を矢印方向に押し下けると、
防熱カバー３３は上向きの力に逆らって下がり、レバー
３４の爪３４ａが定着装置３０の係止爪３０ａに係合し
、この位置でオフセット防止部材２４が加熱リーラ２０
と圧着される。6(a) and 6(middle) respectively show specific examples of the attachment/detachment mechanism of the fixing device according to the present invention, and the rail 28 shown in the third part in each figure is fixed to the lower surface of the resin heat-insulating cover 33. installed. This heat shield cover 33
The rear end in the axial direction is rotatably supported on a spindle A so that the fixing device 300 can move up and down in front of the fixing device 300, and a lever 34 that is operated when attaching and detaching is rotated on the spindle B on the front side in the axial direction. Possibly installed. After installing the offset prevention device v127, a spring 3 is installed on the support shaft B to keep the claw 34a of -34 always engaged with the locking claw 30a of the fixing device 30.
5 is wrapping. When attaching the offset prevention device 27 to the fixing device d30, push up the -34 with your finger in the direction of the arrow as shown in FIG.
When the engagement between the claw 34a of the fixing device M30 and the locking claw 30a of the fixing device M30 is released, the heat insulating cover 33 assumes an inclined position as shown in FIG. Since it receives an upward force of 2 due to the torsion no.
This position will be retained. Therefore, offset prevention equipment, 2
Insert the guide plate 26a of No. 7 into the rail 28 and push the entire offset prevention device 27 in the direction of the solid arrow. When the installation of the offset prevention device 27 is completed, if the lever 34 is pushed down in the direction of the arrow as shown in Figures 21 to 6 (b),
The heat insulating cover 33 goes down against the upward force, the claw 34a of the lever 34 engages with the locking claw 30a of the fixing device 30, and in this position the offset prevention member 24 closes the heating reeler 20.
is crimped.
次に、オフセット防止装置２７を定着装置３０から取り
はずすときには、装着するときと同様にレバー３４を矢
印方向に押し上げて、し、（−３４の爪３４ａと定着装
置３０の係止爪３０ａとの係合を解除して第６図（イ）
に示す位置とし、オフセット防止装置２７全体を破線矢
印で示す手前方向に引き出す。Next, when removing the offset prevention device 27 from the fixing device 30, push up the lever 34 in the direction of the arrow in the same way as when installing it, and then press (-34) into the engagement between the claw 34a and the locking claw 30a of the fixing device 30. Figure 6 (a)
, and pull out the entire offset prevention device 27 in the direction shown by the dashed arrow.
このように、外部から操作できるレバー３４を操作した
だけでオフセット防止装置２７の装着および取りはずし
ができるので、オフセット防止装置２７の交換が容易に
なる。また、オフセット防止装［２？の交換時は加熱ロ
ーラ２０がほとんど露出することはないので、オフセッ
ト防止装置２７の交換が安全にできる。In this way, the offset prevention device 27 can be installed and removed simply by operating the lever 34 that can be operated from the outside, so that the offset prevention device 27 can be easily replaced. Also, offset prevention device [2? When replacing the offset prevention device 27, the heating roller 20 is hardly exposed, so the offset prevention device 27 can be replaced safely.
（ホ）発明の詳細
な説明したように、本発明は、互φに圧接して回転する
一対の定着用回転ローラと、前記回転ｐ−ラの少なくと
も一方にオフセット防止液を塗布する着脱可能なオフセ
ット防止装！ｄとを有する定着装置において、オフセッ
ト防止装置は装着時あるいは取り外し時には回転ローラ
の表面から離間した第１の位置をとり、装着中は回転ロ
ーラの表面に圧接した第２の位置をとり、第１の位置に
おいてオフセット防止装置を回転ローラの軸方向手前側
に引き出し可能にしたので、オフセット防止装！ｄの交
換が容易になる。また、オフセット防止装置の交換時に
は回転ローラが＃丘とんど露出することにないので、オ
フセット防止装置の交換が安全にできる。また、オフセ
ット防止装置の交換時にはオフセット防止部材やクリー
ニング防止部材が回転ローラの表面とこすれてしまうこ
とにないので、同転ローラの表面を傷つけることはない
。(E) As described in detail, the present invention includes a pair of rotating fixing rollers that rotate while being pressed against each other, and a removable roller that applies an anti-offset liquid to at least one of the rotating p-rollers. Offset prevention device! d, the offset prevention device assumes a first position spaced apart from the surface of the rotating roller during mounting or removal, assumes a second position in pressure contact with the surface of the rotating roller during mounting, and Since the offset prevention device can be pulled out toward the front side in the axial direction of the rotating roller at the position shown in FIG. d becomes easy to replace. Furthermore, since the rotating roller is not exposed at all when replacing the offset prevention device, the offset prevention device can be replaced safely. Further, when replacing the offset prevention device, the offset prevention member and the cleaning prevention member do not rub against the surface of the rotating roller, so the surface of the rotating roller is not damaged.
第１図は１子写真複寥機の概略構成図、第２図および第
３図は従来の定着装置の概略線図、第４図（イ）Ｉｒｉ
第３図に示した定着装置ｆＦｉ：捩￥橋本体から取り出
した状態で示し′ｆｃ図、第４図（ロ）は２分割′構造
のＷ軍機本体の２分割した状態を示した図、？Ｊ５図（
イ）はオフセット防止装置の着脱時における本発明によ
る定着装置の正面図および側面図、第５図（ロ）はオフ
セット防止装置の装着時における本発明による定着装置
の正面図および（ｌｌ！ｌ＠図、第６図（イ）、（ロ）
はそれぞれ本発明による定着装置の着脱機構の具体例を
示した側面断面図である。
１３．３０・・・定着装置、２０・・・加熱ローラ、２
１・・・含油部材、２２・・・オイルタンク、２３・・
・シ１Ｊコンオイル、２４・・・オフセット防止液供給
部材、２５・・・クリーニング部材、２６・・・保持部
材、２６ａ・・・’４内板、ｚ７・・・オフセット防止
装置、２８・・・レール、２９・・・複写機本体、３１
・・・加圧ローラ、３３・・・防熱カバー、３４・・・
しｔ＜−１３５・・・、（ネ特許出願人 小西六写真工
業株式会社
代理人弁理土鈴木弘男Figure 1 is a schematic configuration diagram of a single-child photo duplicator, Figures 2 and 3 are schematic diagrams of a conventional fixing device, and Figure 4 (a) Iri
The fixing device fFi shown in Fig. 3 is shown in the state taken out from the torsion bridge main body. Figure J5 (
A) is a front view and a side view of the fixing device according to the present invention when the offset prevention device is installed and removed, and FIG. 5B is a front view and a side view of the fixing device according to the present invention when the offset prevention device is installed and (ll! Figure, Figure 6 (a), (b)
2A and 2B are side sectional views showing specific examples of the attachment/detachment mechanism of the fixing device according to the present invention. 13.30...Fixing device, 20...Heating roller, 2
1...Oil-containing member, 22...Oil tank, 23...
・Si1J control oil, 24...Offset prevention liquid supply member, 25...Cleaning member, 26...Holding member, 26a...'4 inner plate, z7...Offset prevention device, 28...・Rail, 29...Copier main body, 31
...pressure roller, 33...thermal cover, 34...
<-135..., (patent applicant Hiroo Tsuchi Suzuki, attorney for Konishi Roku Photo Industry Co., Ltd.)
Claims (2)
ラと、前記回転ローラの少なくとも一方にオフセット防
止液を塗布する着脱可能なオフセット防止装置とを有す
る定着装置において、前記オフセット防止装置は装着時
あるいは取り外し時には前記回転ｐ−ラの表面から離間
した第１の位置をとり、装着中は前記回転ローラの表面
に圧接した第２の位置をとり、前記第１の位置において
前記オフセット防止装置を前記回転ローラの軸方向手前
側に引き出し可能にしたことを特徴とする定着装置。(1) In a fixing device that includes a pair of rotating fixing rollers that rotate in pressure contact with each other and a removable offset prevention device that applies an offset prevention liquid to at least one of the rotation rollers, the offset prevention device Alternatively, during removal, the offset prevention device is placed in a first position away from the surface of the rotating p-roller, and during installation, it is placed in a second position in pressure contact with the surface of the rotating roller, and in the first position, the offset prevention device is placed in the A fixing device characterized in that the rotating roller can be pulled out toward the front side in the axial direction.
転方向に見て上流側にクリーニング部材を有する特許請
求の範囲第１項に記載の定着装置。(2) The fixing device according to claim 1, wherein the offset prevention device includes a cleaning member on the upstream side when viewed in the rotational direction of the rotating roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193409A JPS6086576A (en) | 1983-10-18 | 1983-10-18 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193409A JPS6086576A (en) | 1983-10-18 | 1983-10-18 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086576A true JPS6086576A (en) | 1985-05-16 |
| JPH0234393B2 JPH0234393B2 (en) | 1990-08-02 |
Family
ID=16307475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58193409A Granted JPS6086576A (en) | 1983-10-18 | 1983-10-18 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275671U (en) * | 1988-11-29 | 1990-06-11 |
-
1983
- 1983-10-18 JP JP58193409A patent/JPS6086576A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275671U (en) * | 1988-11-29 | 1990-06-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0234393B2 (en) | 1990-08-02 |
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