JPH06342247A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPH06342247A JPH06342247A JP13045993A JP13045993A JPH06342247A JP H06342247 A JPH06342247 A JP H06342247A JP 13045993 A JP13045993 A JP 13045993A JP 13045993 A JP13045993 A JP 13045993A JP H06342247 A JPH06342247 A JP H06342247A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- cleaning
- cleaning roller
- transfer paper
- heating
- 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)
- Cleaning In Electrography (AREA)
Abstract
(57)【要約】
【目的】 クリ−ニングロ−ラのクリ−ニングを行なう
際に、クリ−ニングロ−ラの表面を摩耗変形させること
なくクリ−ニングを行なうことのできる定着装置を提供
する。
【構成】 この発明は、転写紙の一方の面に形成された
トナ−画像に接触し、このトナ−画像を加熱する加熱ロ
−ラと、前記転写紙の他方の面側よりこの転写紙を加圧
して、前記加熱ロ−ラに押しつける加圧ロ−ラと、この
加熱ロ−ラの回転面に接触して汚れを払拭捕集するクリ
−ニングロ−ラと、このクリ−ニングロ−ラの回転面に
当接して汚れを掻き取るクリ−ニングブレ−ドからなる
定着装置において、前記クリ−ニングロ−ラの表面を二
硫化モリブデンと結合剤とトナ−溶融剤からなる耐摩耗
性、潤滑性、耐熱性に優れた混合部材によって被覆した
ものである。
(57) [Abstract] [PROBLEMS] To provide a fixing device capable of performing cleaning without cleaning and deforming the surface of the cleaning roller during cleaning of the cleaning roller. According to the present invention, a heating roller for contacting a toner image formed on one surface of a transfer paper and heating the toner image, and the transfer paper from the other surface side of the transfer paper are provided. A pressure roller that pressurizes and presses against the heating roller; a cleaning roller that contacts the rotating surface of the heating roller to wipe off and collect dirt; and a cleaning roller of this cleaning roller. In a fixing device composed of a cleaning blade which comes into contact with a rotating surface to scrape off dirt, the surface of the cleaning roller is made of molybdenum disulfide, a binder and a toner-melting agent, which is wear resistance, lubricity, It is coated with a mixing member having excellent heat resistance.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複写機、ファックス等
における定着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 a fixing device for copying machines, fax machines and the like.
【０００２】[0002]
【従来の技術】従来の定着装置は、図３に示すように転
写紙４ａの一方の面４１ａに形成されたトナ−画像１０
ａに接触し、トナ−画像５ａを加熱する加熱ロ−ラ１ａ
と、転写紙４ａの他方の面４２ａ側より加圧して、この
転写紙を加熱ロ−ラ１ａに押しつける加圧ロ−ラ２ａ
と、加熱ロ−ラ１ａの回転面に接触して該回転面の汚れ
を払拭捕集するクリ−ニングロ−ラ３ａと、このクリ−
ニングロ−ラ３ａの回転面に当接して該回転面の汚れを
掻き取るクリ−ニングブレ−ド９ａから構成される。2. Description of the Related Art A conventional fixing device has a toner image 10 formed on one surface 41a of a transfer paper 4a as shown in FIG.
Heating roller 1a that contacts a and heats toner image 5a
And a pressure roller 2a that pressurizes the transfer paper 4a from the other surface 42a side and presses the transfer paper against the heating roller 1a.
And a cleaning roller 3a for contacting the rotating surface of the heating roller 1a to wipe off and collect dirt on the rotating surface, and this cleaning roller 3a.
The cleaning blade 9a is constituted by a cleaning blade 9a which abuts on the rotating surface of the rolling roller 3a and scrapes off the dirt on the rotating surface.
【０００３】そして、上記の定着装置において、加熱ロ
−ラの汚れをクリ−ニングロ−ラに払拭転写する効率を
良くするために、転写性に優れたシリコンゴムをクリ−
ニングロ−ラの表面に被膜する方法が提案されている。In the above fixing device, in order to improve the efficiency of wiping and transferring the dirt of the heating roller to the cleaning roller, a silicone rubber having excellent transferability is cleaned.
A method of coating the surface of the ning roller has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、シリコ
ンゴムは離型性に劣るために、クリ−ニングロ−ラの回
転面に払拭転写した汚れをクリ−ニングブレ−ドで掻き
取る際に、掻き取りにくいという問題がある。However, since the silicone rubber is inferior in releasability, it is difficult to remove the stains wiped and transferred to the rotating surface of the cleaning roller with the cleaning blade. There is a problem.
【０００５】また、シリコンゴムは耐摩耗性に劣るため
に、前記掻き取る際に発生する摩擦により、クリ−ニン
グロ−ラの表面に被膜したシリコンゴムが摩耗変形し、
クリ−ニングロ−ラの寿命が短くなるという問題があ
る。Further, since the silicone rubber is inferior in abrasion resistance, the silicone rubber coated on the surface of the cleaning roller is worn and deformed by the friction generated during the scraping,
There is a problem that the life of the cleaning roller is shortened.
【０００６】本発明の目的は、上記した従来技術の実情
に鑑みてなされたもので、クリ−ニングロ−ラのクリ−
ニングを行なう際に、クリ−ニングロ−ラの表面を摩耗
変形させることなく、かつ、効率良く行なうことのでき
る定着装置を提供することにある。The object of the present invention has been made in view of the above-mentioned circumstances of the prior art, and is the cleaning of a cleaning roller.
It is an object of the present invention to provide a fixing device capable of efficiently performing the cleaning without causing the surface of the cleaning roller to be worn and deformed.
【０００７】上記の目的を達成するために、この発明で
は、転写紙の一方の面に形成されたトナ−画像に接触
し、該トナ−画像を加熱する加熱ロ−ラと、該転写紙の
他方の面側より該転写紙を加圧して、該転写紙を該加熱
ロ−ラに押しつける加圧ロ−ラと、該加熱ロ−ラの回転
面に接触して該回転面の汚れを払拭捕集するクリ−ニン
グロ−ラと、該クリ−ニングロ−ラの回転面に当接し該
回転面の汚れを払拭するクリ−ニングブレ−ドとからな
る定着装置において、前記クリ−ニングロ−ラの表面を
二硫化モリブデンと結合剤とトナ−溶融剤からなる混合
部材により被膜するようにしたものである。In order to achieve the above-mentioned object, in the present invention, a heating roller for contacting a toner image formed on one surface of a transfer paper and heating the toner image, and a transfer roller for the transfer paper. The transfer paper is pressed from the other surface side to press the transfer paper against the heating roller, and the rotating surface of the heating roller is contacted to wipe off dirt on the rotating surface. In a fixing device comprising a cleaning roller for collecting and a cleaning blade for abutting against a rotating surface of the cleaning roller to wipe off dirt on the rotating surface, a surface of the cleaning roller is provided. Is coated with a mixing member composed of molybdenum disulfide, a binder and a toner-melting agent.
【０００８】クリ−ニングロ−ラの表面を、二硫化モリ
ブデンと結合剤とトナ−溶融剤からなる転写性、離型
性、耐摩耗性に優れた混合部材で被膜し、このクリ−ニ
ングロ−ラに当接するクリ−ニングブレ−ドによって、
クリ−ニングロ−ラ表面のクリ−ニングをおこなう。The surface of the cleaning roller is coated with a mixing member composed of molybdenum disulfide, a binder and a toner-melting agent, which is excellent in transferability, releasability and wear resistance. With the cleaning blade that contacts the
Cleaning The cleaning roller surface is cleaned.
【０００９】[0009]
【実施例】以下、本発明の実施例を添付図面に基づいて
具体的に説明する。図１は本発明の実施例の全体図であ
る。この実施例において、加熱ロ−ラ１は中心部にヒ−
タ１１を内蔵し、加圧ロ−ラ２と圧接し、図中矢印方向
に回転する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall view of an embodiment of the present invention. In this embodiment, the heating roller 1 has a heater at the center.
It has a built-in rotor 11 and is in pressure contact with the pressure roller 2 and rotates in the direction of the arrow in the figure.
【００１０】加熱ロ−ラ１は一般的には金属ロ−ラが好
ましく、また一方、加圧ロ−ラ２はその表面層がシリコ
ンゴム、含フッ素ゴム、含フッ素樹脂、ポリイミド樹脂
等で形成されていることが好ましく、中心部に必要に応
じてヒ−タ−を内蔵させてもよい。Generally, the heating roller 1 is preferably a metal roller, while the surface layer of the pressure roller 2 is made of silicone rubber, fluorine-containing rubber, fluorine-containing resin, polyimide resin or the like. It is preferable that a heater is incorporated in the central portion, if necessary.
【００１１】現像が終わってトナ−像を担持した転写材
例えば転写紙４は、ガイド板５に案内されて進行し、上
記加熱ロ−ラ１と加圧ロ−ラ２とによって転写紙４上の
トナ−像の定着が行なわれる。A transfer material having a toner image carried thereon, for example, a transfer paper 4, which has been developed, advances while being guided by a guide plate 5, and is transferred onto the transfer paper 4 by the heating roller 1 and the pressure roller 2. The toner image is fixed.
【００１２】表面を断熱部材７で被膜されているクリ−
ニングロ−ラ３は、加熱ロ−ラ１上の残存トナ−１０ｂ
を払拭捕集するように、加熱ロ−ラ１に回転自在に圧接
するように設けられ、また、クリ−ニングブレ−ド９
は、クリ−ニングロ−ラ３上の残存トナ−１０ｃを掻き
取るように、クリ−ニングロ−ラ３に当接するように設
けられている。尚、クリ−ニングブレ−ド９は、金属製
部材で構成することが好ましい。A cleaner whose surface is coated with a heat insulating member 7.
The ning roller 3 is the residual toner 10b on the heating roller 1.
It is provided so as to be rotatably pressed against the heating roller 1 so that the cleaning blade 9 can be wiped and collected.
Is provided so as to abut the cleaning roller 3 so as to scrape off the residual toner 10c on the cleaning roller 3. The cleaning blade 9 is preferably made of a metal member.
【００１３】前記クリ−ニングロ−ラ３は、加熱ロ−ラ
１の回転面上の残存トナ−１０ｂをクリ−ニングロ−ラ
３の表面に転写するために該表面は転写性に優れている
必要がある。Since the cleaning roller 3 transfers the residual toner 10b on the rotating surface of the heating roller 1 to the surface of the cleaning roller 3, the surface must be excellent in transferability. There is.
【００１４】また、クリ−ニングロ−ラ３の表面に転写
された残存トナ−１０ｃをクリ−ニングブレ−ド９で掻
き取るために、クリ−ニングロ−ラ３の表面は離型性に
優れている必要がある。Further, since the residual toner 10c transferred onto the surface of the cleaning roller 3 is scraped off by the cleaning blade 9, the surface of the cleaning roller 3 is excellent in releasability. There is a need.
【００１５】さらに、この残存トナ−１０ｃを掻き取る
際にクリ−ニングロ−ラ３とクリ−ニングブレ−ド９と
の間に発生する摩擦によるクリ−ニングロ−ラ３の表面
の変形を防止するために該表面は耐摩耗性に優れている
必要がある。Further, in order to prevent the deformation of the surface of the cleaning roller 3 due to the friction generated between the cleaning roller 3 and the cleaning blade 9 when the residual toner 10c is scraped off. In addition, the surface must have excellent wear resistance.
【００１６】そこで、上記の条件を満たすために本実施
例のクリ−ニングロ−ラ３は、該表面を二硫化モリブデ
ンと結合剤とトナ−溶融剤とからなる転写性、離型性、
耐摩耗性に優れた表面部材７で被膜する構成とする。Therefore, in order to satisfy the above-mentioned conditions, the cleaning roller 3 of this embodiment has a transferability, a releasability, and a releasability of molybdenum disulfide, a binder and a toner-melting agent on the surface.
The surface member 7 having excellent wear resistance is used for coating.
【００１７】以下、図２において本実施例におけるクリ
−ニングロ−ラ３の構成を説明する。 図２は、本発明
の実施例に使用するクリ−ニングロ−ラの断面図であ
る。図２に示すように、このクリ−ニングロ−ラ３は、
表面部材７と内面部材８から構成される。The construction of the cleaning roller 3 in this embodiment will be described below with reference to FIG. FIG. 2 is a sectional view of a cleaning roller used in the embodiment of the present invention. As shown in FIG. 2, this cleaning roller 3 is
It is composed of a surface member 7 and an inner surface member 8.
【００１８】表面部材７は耐摩耗性に優れた樹脂であっ
て、例えば、二硫化モリブデンに対して１０〜５０重量
％の結合剤としてのポリイミドと、二硫化モリブデンに
対して５〜３０重量％のトナ−溶融剤としてのジオクチ
ルフタル酸とを添加したものを使用する。内面部材８
は、中空構造の金属ロ−ラ、または、発泡シリコンゴム
等の弾性体で構成されている。尚、この表面部材７の厚
さは、５〜４０マイクロメ−トル程度が望ましい。この
条件における本実施例の実験結果と、シリコンゴムを被
膜する従来例との比較を表１に示す。The surface member 7 is a resin having excellent wear resistance. For example, 10 to 50% by weight of polyimide as a binder with respect to molybdenum disulfide and 5 to 30% by weight with respect to molybdenum disulfide. Toner-dioctyl phthalic acid as a fusing agent is used. Inner surface member 8
Is composed of a hollow metal roller or an elastic body such as foamed silicone rubber. The thickness of the surface member 7 is preferably about 5-40 micrometers. Table 1 shows a comparison between the experimental results of this example under these conditions and the conventional example in which the silicone rubber is coated.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１に示されるように、本実施例の場合、
転写性においては従来例と変わらずに優れており、離型
性、耐摩耗性においては従来例よりも優れた効果を得る
ことができる。As shown in Table 1, in the case of this embodiment,
The transferability is as good as that of the conventional example, and it is possible to obtain superior effects as compared with the conventional example in terms of releasability and abrasion resistance.
【００２１】次に、図１に基づいて上記のように構成さ
れた本発明の実施例の動作を説明する。Next, the operation of the embodiment of the present invention constructed as above will be described with reference to FIG.
【００２２】加熱ロ−ラ１と加圧ロ−ラ２との間を前工
程でトナ−画像１０ａを一方の面４１に形成した転写紙
４が通過する。この通過の過程で転写紙４の一方の面４
１は、加圧ロ−ラ２で他方の面４２側より加圧され加熱
ロ−ラ１に押しつけら、加熱ロ−ラ１に当接したトナ−
画像１０ａが溶融し、このトナ−画像１０ａが転写紙４
の一方の面４１に熱定着する。これとともに転写紙４は
前方方向に押し出されるとともに、前記トナ−画像１０
ａに接触した後の加熱ロ−ラ１の回転面上に残存トナ−
１０ｂが付着する。The transfer paper 4 having the toner image 10a formed on one surface 41 in the previous step passes between the heating roller 1 and the pressure roller 2. During this passage, one surface 4 of the transfer paper 4
1 is a pressure roller 2 which is pressed from the other surface 42 side and is pressed against the heating roller 1 to contact the heating roller 1.
The image 10a is melted, and this toner image 10a is transferred onto the transfer paper 4
It is heat-fixed on the one surface 41. At the same time, the transfer paper 4 is pushed forward, and the toner image 10 is transferred.
The toner remaining on the rotating surface of the heating roller 1 after contact with a.
10b adheres.
【００２３】このトナ−１０ｂは、クリ−ニングロ−ラ
３に接触すると、クリ−ニングロ−ラ３の表面部材７の
転写性によって、クリ−ニングロ−ラ表面に付着捕集さ
れる。When this toner 10b comes into contact with the cleaning roller 3, it is adhered and collected on the surface of the cleaning roller 3 due to the transferability of the surface member 7 of the cleaning roller 3.
【００２４】この払拭捕集されたクリ−ニングロ−ラ表
面のトナ−１０ｃは、表面部材７の離型性により、この
表面部材７に当接するクリ−ニングブレ−ド９によって
容易に掻き落されクリ−ニングが行なわれる。また、表
面部材７は、耐摩耗性においても優れているので、クリ
−ニングロ−ラ３の表面を摩耗変形させることなくクリ
−ニングが行なわれる。The toner 10c on the surface of the cleaning roller that has been wiped and collected is easily scraped off by the cleaning blade 9 which is in contact with the surface member 7 due to the releasing property of the surface member 7. -The training is done. Moreover, since the surface member 7 is also excellent in wear resistance, cleaning is performed without causing the surface of the cleaning roller 3 to be worn and deformed.
【００２５】[0025]
【発明の効果】以上この発明によれば、クリ−ニングロ
−ラの表面を転写性、離型性、耐摩耗性に優れた部材で
被膜することにより、クリ−ニングロ−ラをクリ−ニン
グする際に、クリ−ニングロ−ラとクリ−ニングブレ−
ド間に発生する摩擦により生じるクリ−ニングロ−ラ表
面の摩耗変形を防止し、クリ−ニングロ−ラの寿命を長
くすることができる。As described above, according to the present invention, the cleaning roller is cleaned by coating the surface of the cleaning roller with a member having excellent transferability, releasability and abrasion resistance. At the time of cleaning roller and cleaning blade
It is possible to prevent wear and deformation of the surface of the cleaning roller caused by friction between the cleaning rollers, and to extend the life of the cleaning roller.
【図１】本発明による定着装置の一実施例を示す全体図
である。FIG. 1 is an overall view showing an embodiment of a fixing device according to the present invention.
【図２】本発明の実施例に使用するクリ−ニングロ−ラ
の断面図である。FIG. 2 is a cross-sectional view of a cleaning roller used in an embodiment of the present invention.
【図３】従来例の全体図である。FIG. 3 is an overall view of a conventional example.
１ 加熱ロ−ラ ２ 加圧ロ−ラ ３ クリ−ニングロ−ラ ４ 転写材 ５ ガイド板 ７ 表面部材 ８ 内面部材 ９ クリ−ニングブレ−ド １０ａ，１０ｂ，１０ｃ トナ− １１ ヒ−タ 1 Heating Roller 2 Pressurizing Roller 3 Cleaning Roller 4 Transfer Material 5 Guide Plate 7 Surface Member 8 Inner Surface Member 9 Cleaning Blade 10a, 10b, 10c Toner 11 Heater
Claims (1)
像に接触し、該トナ−画像を加熱する加熱ロ−ラと、該
転写紙の他方の面側より該転写紙を加圧して、該転写紙
を該加熱ロ−ラに押しつける加圧ロ−ラと、該加熱ロ−
ラの回転面に接触して該回転面の汚れを払拭捕集するク
リ−ニングロ−ラと、該クリ−ニングロ−ラの回転面に
当接し該回転面の汚れを払拭するクリ−ニングブレ−ド
とからなる定着装置において、前記クリ−ニングロ−ラ
は、該ロ−ラ表面が二硫化モリブデンと結合剤とトナ−
溶融剤からなる混合部材によって被膜されていることを
特徴とする定着装置。1. A heating roller for contacting a toner image formed on one surface of the transfer paper to heat the toner image, and pressing the transfer paper from the other surface side of the transfer paper. Pressure roller for pressing the transfer paper against the heating roller, and the heating roller.
Cleaning roller that wipes and collects dirt on the rotating surface by contacting the rotating surface of the cleaning roller, and a cleaning blade that contacts the rotating surface of the cleaning roller and wipes off the dirt on the rotating surface. In the fixing device, the cleaning roller has a molybdenum disulfide, a binder and a toner.
A fixing device coated with a mixing member made of a melting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13045993A JPH06342247A (en) | 1993-06-01 | 1993-06-01 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13045993A JPH06342247A (en) | 1993-06-01 | 1993-06-01 | Fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06342247A true JPH06342247A (en) | 1994-12-13 |
Family
ID=15034749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13045993A Pending JPH06342247A (en) | 1993-06-01 | 1993-06-01 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06342247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678153A (en) * | 1994-12-01 | 1997-10-14 | Ricoh Company, Ltd. | Fixing apparatus comprising a cleaning roller having a coated layer of polyimide and polytetrafluoroethylene |
-
1993
- 1993-06-01 JP JP13045993A patent/JPH06342247A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678153A (en) * | 1994-12-01 | 1997-10-14 | Ricoh Company, Ltd. | Fixing apparatus comprising a cleaning roller having a coated layer of polyimide and polytetrafluoroethylene |
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