JP2010064252A - Image forming apparatus and foam application device - Google Patents

Image forming apparatus and foam application device Download PDF

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JP2010064252A
JP2010064252A JP2008229693A JP2008229693A JP2010064252A JP 2010064252 A JP2010064252 A JP 2010064252A JP 2008229693 A JP2008229693 A JP 2008229693A JP 2008229693 A JP2008229693 A JP 2008229693A JP 2010064252 A JP2010064252 A JP 2010064252A
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foam
application
liquid
bubbles
image forming
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JP5181945B2 (en
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Shinji Imoto
晋司 井本
Kazuyoshi Matsumoto
和悦 松本
Seiji Hoshino
誠治 星野
Naoaki Tsuda
直明 津田
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Ricoh Co Ltd
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Ricoh Co Ltd
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Priority to JP2008229693A priority Critical patent/JP5181945B2/en
Priority to PCT/JP2008/072581 priority patent/WO2009075339A1/en
Priority to CN2008801206485A priority patent/CN101896348B/en
Priority to EP08860317A priority patent/EP2231407B1/en
Priority to US12/744,537 priority patent/US8540337B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus which can stably apply a treatment liquid in a uniform thickness and can hold the quality of foams to be applied. <P>SOLUTION: The image forming apparatus includes a foam forming part 205 which forms the foam 210, a reservoir 211 which supplies the foam 210 formed by the foam forming part 205 to an application roller 212, a discharge channel 401 which collects surplus foams from the reservoir 211, and a heating means 501 which returns the surplus foams to liquid by heating the surplus foams discharged to the discharge channel 401. A discharge liquid which is the liquefied foam discharged through the discharge channel 401 is returned to a container 202 which stores the treatment liquid 201. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は画像形成装置及び泡塗布装置に関する。   The present invention relates to an image forming apparatus and a foam coating apparatus.

プリンタ、ファクシミリ、複写装置、プロッタ、これらの複合機等の画像形成装置として、例えばインク液滴を吐出する記録ヘッドを用いた液体吐出記録方式の画像形成装置としてインクジェット記録装置などが知られている。この液体吐出記録方式の画像形成装置は、記録ヘッドからインク滴を、搬送される用紙(紙に限定するものではなく、OHPなどを含み、インク滴、その他の液体などが付着可能なものの意味であり、被記録媒体あるいは記録媒体、記録紙、記録用紙などとも称される。)に対して吐出して、画像形成(記録、印字、印写、印刷も同義語で使用する。)を行なうものであり、記録ヘッドが主走査方向に移動しながら液滴を吐出して画像を形成するシリアル型画像形成装置と、記録ヘッドが移動しない状態で液滴を吐出して画像を形成するライン型ヘッドを用いるライン型画像形成装置がある。   As an image forming apparatus such as a printer, a facsimile machine, a copying apparatus, a plotter, and a complex machine of these, for example, an ink jet recording apparatus is known as an image forming apparatus of a liquid discharge recording method using a recording head for discharging ink droplets. . This liquid discharge recording type image forming apparatus means that ink droplets are transported from a recording head (not limited to paper, including OHP, and can be attached to ink droplets and other liquids). Yes, it is also ejected onto a recording medium or a recording medium, recording paper, recording paper, etc.) to form an image (recording, printing, printing, and printing are also used synonymously). And a serial type image forming apparatus that forms an image by ejecting liquid droplets while the recording head moves in the main scanning direction, and a line type head that forms images by ejecting liquid droplets without moving the recording head There are line type image forming apparatuses using

なお、本願において、液体吐出記録方式の「画像形成装置」は、紙、糸、繊維、布帛、皮革、金属、プラスチック、ガラス、木材、セラミックス等の媒体に液体を吐出して画像形成を行う装置を意味し、また、「画像形成」とは、文字や図形等の意味を持つ画像を媒体に対して付与することだけでなく、パターン等の意味を持たない画像を媒体に付与すること(単に液滴を媒体に着弾させること)をも意味する。また、「インク」とは、インクと称されるものに限るものではなく、吐出されるときに液体となるものであれば特に限定されるものではなく、例えば、DNA試料、レジスト、パターン材料なども含まれる。   In the present application, the “image forming apparatus” of the liquid discharge recording method is an apparatus that forms an image by discharging liquid onto a medium such as paper, thread, fiber, fabric, leather, metal, plastic, glass, wood, ceramics, or the like. In addition, “image formation” means not only giving an image having a meaning such as a character or a figure to a medium but also giving an image having no meaning such as a pattern to the medium (simply It also means that a droplet is landed on a medium). The “ink” is not limited to what is called ink, and is not particularly limited as long as it becomes a liquid when ejected. For example, a DNA sample, a resist, a pattern material, etc. Is also included.

このような液体吐出方式の画像形成装置においては、色材を含むインクを液滴化して画像形成を行うために、液滴で形成されるドットがひげ状に乱れるフェザリング、異なる色のインク滴が隣接して用紙に打たれた場合に、各色が相互に混ざり合って色境界が不鮮明になるカラーブリード等の不具合が生じることがあり、更に印字後の紙上の液滴が乾くまでに時間がかかるという問題がある。   In such a liquid ejection type image forming apparatus, in order to form an image by forming ink containing a coloring material into droplets, feathering in which dots formed by the droplets are disturbed, and ink droplets of different colors When the ink is struck on the paper adjacent to each other, it may cause problems such as color bleeding, which causes the colors to mix with each other and the color boundary to become unclear. There is a problem that it takes.

そこで、従来から特許文献1に記載されているようにインクと反応して滲み防止を促す前処理液を塗布ローラで塗布したり、特許文献2に記載されているように前処理液を液体吐出ヘッドからミスト状に吐出させて塗布したり、特許文献3に記載されているように印字前又は印字後にインクの定着性を向上させる処理液を塗布ローラなどで塗布したりすることが行われる。   Therefore, as described in Patent Document 1, a pretreatment liquid that reacts with ink to prevent bleeding is applied by an application roller as described in the prior art, or the pretreatment liquid is ejected as described in Patent Document 2. A mist is ejected from the head and applied, or, as described in Patent Document 3, a treatment liquid for improving the ink fixing property is applied by a coating roller or the like before or after printing.

特開2002−137378号公報JP 2002-137378 A 特開2005−138502号公報Japanese Patent Laying-Open No. 2005-138502 特開2003−205673号公報JP 2003-205673 A

しかしながら、上述した従来技術のように塗布ローラや液体吐出ヘッドで前処理液や後処理液を用紙に塗布するのでは、塗布ムラが発生するとともに、更に液体のために用紙上でインクと反応後の速乾性に問題があり、特に用紙がカールしたり、撓んだりし易くなることから、ジャム等が起こりやすいという課題がある。   However, when the pretreatment liquid or the posttreatment liquid is applied to the paper with the application roller or the liquid discharge head as in the above-described prior art, uneven application occurs, and further after the reaction with the ink on the paper due to the liquid. There is a problem with the quick-drying property of the paper, and in particular, the paper tends to curl or bend easily, so that there is a problem that jamming or the like easily occurs.

そこで、本出願人は、既に、処理液を泡状化して被記録媒体などの被塗布部材に塗布することを提案しているが、塗布されずに残った余剰泡をそのままにしておくと、余剰泡が乾燥し、処理液成分が固着し、泡塗布性能の低下(塗布ムラの発生)や駆動系の性能低下などの不具合が発生するという新たな課題が生じた。   Therefore, the present applicant has already proposed that the treatment liquid is foamed and applied to a member to be coated such as a recording medium, but if the excess foam remaining without being coated is left as it is, There was a new problem that the excess foam was dried, the treatment liquid components were fixed, and problems such as a decrease in foam application performance (occurrence of application unevenness) and a decrease in drive system performance occurred.

本発明は上記の課題に鑑みてなされたものであり、処理液を均一な厚みで安定して塗布できるようにするとともに、塗布する泡の品質を保てるようにすることを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to enable a treatment liquid to be stably applied with a uniform thickness and to maintain the quality of foam to be applied.

上記の課題を解決するため、本発明に係る画像形成装置は、
被記録媒体に画像を形成する画像形成手段と、
前記被記録媒体又は被記録媒体に塗布するための中間部材に対して液体及びゲルの少なくともいずれかの処理液を泡状にした泡を塗布する泡塗布手段と、を備え、
前記泡塗布手段は、
前記泡を塗布する塗布手段と、
塗布されずに残った余剰泡を回収する経路と、
前記経路内で前記余剰泡を加熱して前記余剰泡を液状に戻す加熱手段と、を有している
構成とした。
In order to solve the above problems, an image forming apparatus according to the present invention provides:
Image forming means for forming an image on a recording medium;
A foam application means for applying a foam in which at least one of a liquid and a gel treatment liquid is applied to the recording medium or an intermediate member for application to the recording medium;
The foam applying means is
Application means for applying the foam;
A path for collecting excess foam remaining without being applied;
And heating means for heating the surplus bubbles in the path to return the surplus bubbles to a liquid state.

ここで、前記加熱手段によって前記余剰泡を加熱する第1のモードと、前記加熱手段によって前記余剰泡を加熱しない第2のモードとを備えている構成とできる。   Here, it can be set as the structure provided with the 1st mode which heats the said surplus foam with the said heating means, and the 2nd mode which does not heat the said surplus foam with the said heating means.

また、前記経路は前記処理液から前記泡を生成する泡生成手段、泡生成手段に供給する前記処理液を収容した処理液収容部又は廃棄用収容部に接続されている構成とできる。   The path may be configured to be connected to a foam generating unit that generates the bubbles from the processing liquid, a processing liquid storage unit that stores the processing liquid supplied to the foam generating unit, or a disposal storage unit.

また、前記加熱手段は前記余剰泡が接触する複数の面を有している構成とできる。   Moreover, the said heating means can be set as the structure which has the some surface which the said surplus bubble contacts.

また、前記余剰泡は、前記塗布手段に供給されなかった泡である構成とできる。   Moreover, the said surplus foam can be set as the structure which is a foam which was not supplied to the said application | coating means.

本発明に係る泡塗布装置は、
被塗布部材に液体及びゲルの少なくともいずれかの処理液を泡状にした泡を塗布する泡塗布装置において、
前記泡を塗布する塗布手段と、
塗布されずに残った余剰泡を回収する経路と、
前記経路内で前記余剰泡を加熱して前記余剰泡を液状に戻す加熱手段と、を有している
ことを特徴とする泡塗布装置。
The foam coating apparatus according to the present invention is:
In a foam application apparatus for applying foam in which a treatment liquid of at least one of liquid and gel is applied to a member to be coated,
Application means for applying the foam;
A path for collecting excess foam remaining without being applied;
And a heating means for heating the surplus bubbles to return the surplus bubbles to a liquid state in the path.

なお、本発明における「泡」とは、液体又はゲルがその中に空気などの気体を含んで丸くなったものであり、気体を包む液体の表面張力により形作られ、ある時間立体的形状を保持できるものをいう。なお、このような形状保持性を有する泡としては、かさ密度0.05g/cm以下であり、泡径の分布範囲が10μm〜1mm、平均泡径が100μm以下であることが好ましく、また、泡は単体では丸く形成されるが、複数結合すると表面張力により個々の泡の形状は多面体形状をとる。また、「ゲル」とは、分散媒に分散しているコロイド溶液や高分子化合物が相互作用の為に独立した運動性を失い、粒子が互いにつながりあい、網状又は蜂の巣の様な構造をとるようになり、固化した半固体物質を意味する。 The “bubble” in the present invention is a liquid or gel that contains a gas such as air and is rounded, and is formed by the surface tension of the liquid that encloses the gas, and maintains a three-dimensional shape for a certain period of time. What you can do. As the foam having such shape-retaining properties, the bulk density is 0.05 g / cm 3 or less, the bubble diameter distribution range is preferably 10 μm to 1 mm, and the average bubble diameter is preferably 100 μm or less. Bubbles are formed in a round shape as a single substance, but when a plurality of bubbles are combined, the shape of each bubble takes a polyhedral shape due to surface tension. “Gel” means a colloidal solution or polymer compound dispersed in a dispersion medium loses its independent mobility due to the interaction, and the particles are connected to each other, forming a net-like or honeycomb-like structure. Means a solidified semi-solid substance.

本発明に係る画像形成装置及び本発明に泡塗布装置によれば、泡を塗布する塗布手段と、塗布されずに残った余剰泡を回収する経路と、経路内で余剰泡を加熱して余剰泡を液状に戻す加熱手段とを有している構成としたので、液体又はゲル若しくは液体及びゲルを均一な厚みで塗布できるとともに、余剰泡を回収、廃棄して、塗布する泡の品質を均一に保てるようになる。   According to the image forming apparatus according to the present invention and the foam application apparatus according to the present invention, the application means for applying the foam, the path for recovering the excess foam remaining without being applied, the excess foam by heating the excess foam in the path Because it has a heating means to return the foam to a liquid state, liquid or gel or liquid and gel can be applied with a uniform thickness, and excess foam is recovered and discarded, and the quality of the applied foam is uniform. You can keep it.

以下、本発明の実施の形態について添付図面を参照して説明する。まず、本発明に係る泡塗布装置を含む本発明に係る画像形成装置の一例について図1を参照して説明する。なお、図1は同画像形成装置の全体構成図である。
この画像形成装置は、被記録媒体である用紙100に液滴を吐出して画像を形成する画像形成手段としての記録ヘッドユニット101と、用紙100を搬送する搬送ベルト102と、用紙100を収容する給紙トレイ103と、記録ヘッドユニット101よりも用紙搬送方向上流側で被塗布部材である用紙100に泡状液体を塗布する本発明に係る泡塗布装置200とを備えている。
Embodiments of the present invention will be described below with reference to the accompanying drawings. First, an example of an image forming apparatus according to the present invention including a foam coating apparatus according to the present invention will be described with reference to FIG. FIG. 1 is an overall configuration diagram of the image forming apparatus.
The image forming apparatus accommodates a recording head unit 101 as an image forming unit that forms an image by ejecting liquid droplets onto a sheet 100 that is a recording medium, a conveyance belt 102 that conveys the sheet 100, and the sheet 100. A paper feed tray 103 and a foam application device 200 according to the present invention for applying a foam liquid to the paper 100 that is a member to be applied on the upstream side of the recording head unit 101 in the paper conveyance direction are provided.

記録ヘッドユニット101は、液滴を吐出する複数のノズルを用紙幅相当分の長さに配列したノズル列を有するライン型液体吐出ヘッドから構成され、それぞれイエロー(Y)、マゼンタ(M)、シアン(C)、ブラック(K)の各色のインク滴を記録ヘッド101y、101m、101c、101kを備えている。なお、シリアル型画像形成装置として記録ヘッドをキャリッジに搭載する構成ともできる。   The recording head unit 101 is composed of a line type liquid discharge head having a nozzle row in which a plurality of nozzles for discharging droplets are arranged in a length corresponding to the paper width. Yellow (Y), magenta (M), cyan The recording heads 101y, 101m, 101c, and 101k are provided with ink droplets of each color of (C) and black (K). Note that the recording head can be mounted on the carriage as a serial type image forming apparatus.

搬送ベルト102は、無端状ベルトであり、搬送ローラ121とテンションローラ122との間に掛け渡されて周回するように構成している。この搬送ベルト102に対する用紙100の保持は、例えば静電吸着、空気の吸引による吸着などを行う構成とすることやその他の公知の搬送手段を用いることができる。   The conveyor belt 102 is an endless belt, and is configured to circulate between the conveyor roller 121 and the tension roller 122. The paper 100 can be held on the transport belt 102 by, for example, a configuration that performs electrostatic suction, suction by air suction, or other known transport means.

給紙トレイ103に収容された用紙100はピックアップローラ131で1枚ずつ分離給紙されて搬送ローラ対132及び図示しない搬送ローラ対によって搬送路135を介して搬送ベルト102上に送り込まれて保持される。   The paper 100 stored in the paper feed tray 103 is separated and fed one by one by a pickup roller 131, and is sent and held on the conveyor belt 102 via the conveyance path 135 by the conveyance roller pair 132 and a conveyance roller pair (not shown). The

そして、搬送ベルト102で搬送される被塗布部材としての被記録媒体100に対して、泡塗布装置200で泡210が塗布され、用紙100に塗布された泡210は速乾して、ヘッドユニット101から各色の液滴が吐出されて画像が形成され、その後排紙トレイ104に排出される。   Then, the foam 210 is applied to the recording medium 100 as the application member to be conveyed by the conveyance belt 102 by the foam application device 200, and the foam 210 applied to the paper 100 is quickly dried, and the head unit 101. Then, droplets of each color are ejected to form an image, which is then discharged to the discharge tray 104.

一方、泡塗布装置200は、泡状態にすることが可能な液体又はゲル若しくは液体及びゲル(以下、これらを「処理液」又は「セット剤」と総称する。)201を収容した容器202と、この容器202から処理液201を圧送するポンプ203と、ポンプ203で供給路204を介して供給された処理液201から小径の塗布に適した状態の泡210を生成する泡生成手段としての泡生成部205と、泡生成部205から供給路206を介して泡210が供給されて導入口231から導入され、泡210を被記録媒体100(又は中間部材でもよい。)の幅方向に延展する貯留部(泡供給部)211と、この貯留部211の供給口232から泡210が供給され、泡210を周面に担持して、被記録媒体100に泡210を塗布する塗布手段としての塗布ローラ(塗布部材)212とを備えている。   On the other hand, the foam application apparatus 200 includes a container 202 containing a liquid or gel or liquid and gel (hereinafter collectively referred to as “treatment liquid” or “setting agent”) 201 that can be in a foam state. Bubble generation as a bubble generation means that generates a bubble 210 in a state suitable for small-diameter application from the pump 203 that pumps the processing liquid 201 from the container 202 and the processing liquid 201 supplied by the pump 203 through the supply path 204. The bubble 210 is supplied from the unit 205 and the bubble generation unit 205 via the supply path 206 and introduced from the introduction port 231, and the bubble 210 extends in the width direction of the recording medium 100 (or an intermediate member). Unit (bubble supply unit) 211 and a bubble 210 is supplied from a supply port 232 of the storage unit 211, and the foam 210 is applied to the recording medium 100 by supporting the bubble 210 on the peripheral surface. Coating roller as and an (application member) 212.

また、貯留部211は、供給口232での泡210の流体抵抗を可変することにより塗布ローラ212に対して供給する泡210の量(塗布ローラ212による塗布量)を調整可能で、かつ、塗布ローラ212への泡210の供給領域(塗布ローラ212による塗布領域)を開閉量で規制する塗布量/塗布領域調整手段233と、塗布ローラ212に供給されなかった余剰な泡210を排出する排出口234を備えている。   Further, the storage unit 211 can adjust the amount of the foam 210 supplied to the application roller 212 (the application amount by the application roller 212) by changing the fluid resistance of the foam 210 at the supply port 232, and the application Application amount / application region adjusting means 233 for restricting the supply region of the foam 210 to the roller 212 (application region by the application roller 212) by the opening / closing amount, and a discharge port for discharging the excess foam 210 not supplied to the application roller 212 234.

この排出口234には塗布されずに残った(ここでは、塗布手段である塗布ローラ212に供給されずに残った)余剰泡を回収する経路である、排出経路401が接続されている。この排出経路401の他端部側は、処理液201を収容する処理液収容部である容器202に接続されている(通じている。)。   A discharge path 401 is connected to the discharge port 234, which is a path for collecting surplus bubbles remaining without being applied (here, remaining without being supplied to the application roller 212 as an application means). The other end side of the discharge path 401 is connected to (is in communication with) a container 202 that is a processing liquid storage unit that stores the processing liquid 201.

そして、排出経路401には、排出口234の流体抵抗を調整することで排出口234から排出される余剰泡の量を制御する調整バルブ403と、この調整バルブ403の下流側で排出口234から容器202への余剰泡の排出を補助する排出ポンプ402と、排出ポンプ402の下流側で排出経路401内を排出される余剰泡を加熱して液状に戻す加熱装置501が配置されている。なお、排出ポンプ402は余剰泡を圧縮することで消泡する作用も有している。   In the discharge path 401, an adjustment valve 403 that controls the amount of excess foam discharged from the discharge port 234 by adjusting the fluid resistance of the discharge port 234, and the discharge port 234 on the downstream side of the adjustment valve 403. A discharge pump 402 that assists the discharge of excess bubbles into the container 202 and a heating device 501 that heats the excess bubbles discharged in the discharge path 401 downstream of the discharge pump 402 and returns them to a liquid state are arranged. Note that the discharge pump 402 also has an action of defoaming by compressing excess foam.

加熱装置501により泡を加熱することで泡の膜が乾燥し膜厚が薄くなるとともに泡の内部が熱膨張し、泡の内圧が高まるため、泡が大きくなり、更に泡の膜厚が薄くなり、その作用で消泡することができる。泡が消えた若しくは少なくなった排出液(これを「還元処理液」という。)を容器202に回収して、再度泡生成に用いる。   When the foam is heated by the heating device 501, the foam film is dried and the film thickness is thinned, and the inside of the foam is thermally expanded to increase the internal pressure of the foam, so that the foam is enlarged and the film thickness of the foam is further reduced. The foam can be removed by the action. The discharged liquid from which bubbles disappeared or decreased (this is referred to as “reducing treatment liquid”) is collected in the container 202 and used again for foam generation.

なお、ここでは、排出経路401は処理液201を収容する処理液収容部である容器202に接続しているが、図2に示すように、廃棄用収容部である廃棄タンク503に接続して還元処理液を回収廃棄することもできるし、また、図3に示すように、泡生成部205に接続して泡生成部205で再度泡生成に利用することもできる。   Here, although the discharge path 401 is connected to the container 202 which is a processing liquid storage unit for storing the processing liquid 201, it is connected to a disposal tank 503 which is a disposal storage unit as shown in FIG. The reduction treatment liquid can be recovered and discarded, or, as shown in FIG. 3, it can be connected to the bubble generation unit 205 and used again for bubble generation by the bubble generation unit 205.

また、塗布ローラ212に担持された泡210の膜厚(塗布膜厚)を規制する厚さ規制手段214と、塗布後に塗布ローラ212周面に残っている泡210を除去するクリーニング部材215とを備えている。   Further, a thickness regulating means 214 for regulating the film thickness (coating film thickness) of the foam 210 carried on the application roller 212, and a cleaning member 215 for removing the foam 210 remaining on the peripheral surface of the application roller 212 after application. I have.

ここで、泡状態になり得る処理液201は、用紙100の表面に塗布することで用紙100の表面を改質する改質材である。例えば、液体210は、予め用紙100(前述したように材質としての紙に限定されない。)にムラなく塗布しておくことで、インクの水分を速やかに用紙100に浸透させると共に色成分を増粘させ、更には乾燥も早めることによって滲み(フェザリング、ブリーディング等)や裏抜けを防止し、生産性(単位時間当たりの画像出力枚数)をあげることを可能にする定着剤(セット剤)である。   Here, the treatment liquid 201 that can be in a foam state is a modifying material that modifies the surface of the paper 100 by being applied to the surface of the paper 100. For example, the liquid 210 is preliminarily applied to the paper 100 (not limited to the paper as a material as described above) in advance, so that the moisture of the ink can quickly permeate the paper 100 and thicken the color component. Furthermore, it is a fixing agent (setting agent) that prevents bleeding (feathering, bleeding, etc.) and back-through by accelerating drying and increases productivity (number of images output per unit time). .

この処理液201は、組成的には、例えば界面活性剤(アニオン系、カチオン系、ノニオン系のいずれか、若しくはこれらを2種類以上混合させたもの)に対して、水分の浸透を促進するセルロース類(ヒドロキシプロピルセルロース等)とタルク微粉体の様な基剤を加えた溶液等を挙げることができる。更に微粒子を含有することもできる。   In terms of composition, this treatment liquid 201 is, for example, cellulose that promotes moisture permeation with respect to a surfactant (any one of anionic, cationic, nonionic, or a mixture of two or more thereof). And the like (hydroxypropylcellulose etc.) and a solution to which a base such as talc fine powder is added. Furthermore, fine particles can be contained.

また、泡210としては、前述したように、液体又はゲルがその中に空気などの気体を含んで丸くなったものであり、気体を包む液体の表面張力により形作られ、ある時間立体的形状を保持できるものであって、かさ密度0.05g/cm以下であり、泡径の分布範囲が10μm〜1mm、平均泡径が100μm以下であることが好ましく、また、泡は単体では丸く形成されるが、複数結合すると表面張力により個々の泡の形状は多面体形状をとるものである。 In addition, as described above, the bubble 210 is a liquid or gel that is rounded by containing a gas such as air, and is formed by the surface tension of the liquid that encloses the gas. It is preferable that the bulk density is 0.05 g / cm 3 or less, the bubble diameter distribution range is 10 μm to 1 mm, and the average bubble diameter is 100 μm or less. However, when a plurality of bubbles are combined, the shape of each bubble takes a polyhedral shape due to surface tension.

このように、用紙100の表面に泡210を塗布することによって、空気を大量に含むことで微量液塗布が可能となって、塗布の均一性を図れ、速乾性が向上し、滲み、裏写り、濃度ムラ等のない良質な画像を出力することができる。   In this way, by applying the foam 210 to the surface of the paper 100, it is possible to apply a small amount of liquid by containing a large amount of air, achieving uniform coating, improving quick drying, bleeding, and show-through. Therefore, it is possible to output a high-quality image without density unevenness.

つまり、処理液を泡状態にして塗布することで、液体やミスト状の処理液と比べて、次のような利点(効果)がある。
(1)泡は空気を大量に含む為、微量液塗布が可能である。
(2)泡は固体に近いため、塗布してから削りとる等で塗布膜厚を容易に調整することができ、又、塗布手段から紙への塗布時に塗布手段からの剥離性が良いため、均一塗布が可能である。
(3)泡は紙の繊維に水分が浸透しにくいため、紙にシワやカールが発生しにくい。
That is, by applying the treatment liquid in a foam state, there are the following advantages (effects) compared to the liquid or mist-like treatment liquid.
(1) Since foam contains a large amount of air, it is possible to apply a trace amount of liquid.
(2) Since the foam is close to solid, the coating film thickness can be easily adjusted by applying and scraping, etc., and since the peelability from the coating means is good at the time of coating from the coating means to the paper, Uniform application is possible.
(3) Since water does not easily penetrate into the fibers of the paper, wrinkles and curls are unlikely to occur on the paper.

このような泡塗布の長所は、処理液の種類に依存せず、同様な効果が得られる。なお、処理液は紙粉を抑える効果を持つことが好ましく、また、用紙の地肌色を変える効果があっても良い。   The advantages of such foam application do not depend on the type of treatment liquid, and the same effect can be obtained. The treatment liquid preferably has an effect of suppressing paper dust, and may have an effect of changing the background color of the paper.

ところが、被記録媒体又は被記録媒体に塗布するための中間部材などの被塗布部材に対し、幅方向へ泡を均一量塗布するためには、塗布前に該方向へ十分に延展させる必要がある。しかしながら、泡は固体に近いことから、容易には延展しないことから、被記録媒体や中間部材の幅方向に延展することが難しい。また、塗布手段へ泡の供給量の制御が難しいという課題や供給された泡のかさ密度、発砲密度、泡径を均一に保つことが難しいという課題がある。   However, in order to apply a uniform amount of foam in the width direction to a recording medium or a member to be coated such as an intermediate member for coating on the recording medium, it is necessary to sufficiently extend in that direction before coating. . However, since bubbles are close to solids, they do not easily extend, so it is difficult to extend in the width direction of the recording medium or intermediate member. In addition, there are problems that it is difficult to control the amount of foam supplied to the application means, and that it is difficult to keep the bulk density, foaming density, and bubble diameter of the supplied foam uniform.

そこで、本実施形態では、被塗布部材に泡を塗布する塗布手段に供給口から泡を供給する供給手段に、塗布手段に供給されなかった泡を排出する排出口を有し、塗布手段に供給される泡の量よりも過剰な量の泡が導入される構成とすることで、液体又はゲル若しくは液体及びゲルを均一な厚みで塗布できるとともに、供給量を容易に制御でき、更に塗布する泡の品質を均一に保てるようになり、画質を向上することができるようになる。   Therefore, in the present embodiment, the supply means for supplying bubbles from the supply port to the application means for applying bubbles to the member to be applied has a discharge port for discharging bubbles that have not been supplied to the application means, and is supplied to the application means. By adopting a configuration in which an excessive amount of foam is introduced than the amount of foam to be applied, the liquid or gel or liquid and gel can be applied with a uniform thickness, the supply amount can be easily controlled, and the applied foam The image quality can be kept uniform and the image quality can be improved.

先ず、泡塗布装置200における泡生成部205の一例について図4を参照して説明する。
この泡生成部205は、ポンプ203で容器202から供給される処理液201を収容する容器221と、容器231内に配置された円筒状の多孔部材222と、この多孔部材222内部に気体を供給する気体供給手段223とを備えている。気体供給手段223は例えばファンとダクトで空気を送り込む構成とできる。また、生成される泡210が容器221内で無秩序に広がらない様に多孔部材222を囲むとともに泡状態になる処理液201を充分に多孔部材222に供給するために、供給路206の一端部側が多孔部材222を囲む形状に形成され、この供給路206の入口部分(多孔部材222を配置する部分)に第1のスリット224、第2のスリット225が設けられている。
First, an example of the foam production | generation part 205 in the foam application apparatus 200 is demonstrated with reference to FIG.
The foam generation unit 205 supplies a gas to the inside of the porous member 222, a container 221 that stores the processing liquid 201 supplied from the container 202 by the pump 203, a cylindrical porous member 222 disposed in the container 231, and the like. Gas supply means 223 to be provided. The gas supply means 223 can be configured to send air by a fan and a duct, for example. In addition, in order to sufficiently supply the processing liquid 201 that surrounds the porous member 222 and is in a bubble state so that the generated foam 210 does not spread randomly in the container 221, the one end side of the supply path 206 is It is formed in a shape surrounding the porous member 222, and a first slit 224 and a second slit 225 are provided at the inlet portion of the supply path 206 (portion where the porous member 222 is disposed).

この泡生成部205においては、多孔部材222に気体が供給されることで処理液201から泡210が生成され、気体を供給して泡210を生成しているときには泡210が自身の堆積力で供給路206内を移動して(搬送されて)貯留部211に供給され、気体の供給を停止することで、泡210が堆積しなくなって搬送されなくなる。このように、特別な搬送手段を用いることなく泡自身の堆積力で生成された泡が搬送供給されるので、構成が簡単になる。   In the bubble generation unit 205, bubbles 210 are generated from the treatment liquid 201 by supplying gas to the porous member 222, and when the bubbles 210 are generated by supplying gas, the bubbles 210 have their own deposition force. By moving (supplied) in the supply path 206 and supplied to the storage unit 211 and stopping the supply of gas, the bubbles 210 are not accumulated and are not transferred. As described above, since the bubbles generated by the deposition force of the bubbles themselves are conveyed and supplied without using a special conveying means, the configuration is simplified.

次に、泡塗布装置200における貯留部211の第1例について図5を参照して説明する。なお、図5は同貯留部の模式的斜視説明図である。
この貯留部211は、泡貯留容器300に、前述したように泡生成部205から供給路206を介して泡210が供給される導入口231と、塗布ローラ212に泡210を供給する供給口232と、塗布ローラ212に供給されなかった余剰な泡210を排出する排出口234とを備え、供給口232には塗布量/塗布領域調整手段233を備えている。
Next, the 1st example of the storage part 211 in the foam application apparatus 200 is demonstrated with reference to FIG. FIG. 5 is a schematic perspective view of the storage section.
As described above, the storage unit 211 includes an introduction port 231 through which the foam 210 is supplied from the foam generation unit 205 via the supply path 206, and a supply port 232 through which the foam 210 is supplied to the application roller 212. And a discharge port 234 that discharges excess foam 210 that has not been supplied to the application roller 212, and the supply port 232 includes application amount / application region adjusting means 233.

この貯留部211においては、泡生成部206から導入口231を介して泡貯留容器300内に泡210が送り込まれ、供給口232から塗布ローラ212側へと押し出される。調整バルブ403を閉じておき、供給によって圧力をかけることにより、泡210は泡貯留容器300内で用紙幅方向に延展される。このとき、調整バブル403は泡貯留容器300内に泡210が行渡る圧力に設定されている。   In the storage unit 211, the foam 210 is fed into the foam storage container 300 from the foam generation unit 206 through the introduction port 231, and pushed out from the supply port 232 to the application roller 212 side. By closing the adjustment valve 403 and applying pressure by supply, the foam 210 is expanded in the paper width direction in the foam storage container 300. At this time, the adjustment bubble 403 is set to a pressure at which the bubbles 210 spread in the bubble storage container 300.

そして、所定のタイミングで調整バルブ403を開くことで、泡塗布ローラ212に対する供給量より多い泡210を泡貯留容器300内に導入(供給)しながら、余分な泡210を排出口234から排出経路401へ排出することで、所定の用紙幅方向に不足なく塗布されることになる。なお、調整バルブ403により流体抵抗を調節して塗布ローラ212に優先的に泡210が供給されるよう制御している。   Then, by opening the adjustment valve 403 at a predetermined timing, the foam 210 is introduced (supplied) into the foam reservoir 300 more than the amount supplied to the foam application roller 212, and the excess foam 210 is discharged from the discharge port 234. By discharging to 401, it is applied without any shortage in a predetermined paper width direction. The control valve 403 controls the fluid resistance so that the bubbles 210 are preferentially supplied to the application roller 212.

ここで、塗布量/塗布領域調整手段233としては、図6に示すように、上下に昇降することで供給口232を開閉する調整板233aを備える構成、或いは、図5及び図7に示すように、上下方向の調整板233aとともに、横方向(用紙の幅方向に相当する。)に移動することで供給口232を開閉する調整板233bを備える構成とできる。   Here, as shown in FIGS. 5 and 7, the application amount / application area adjusting means 233 includes an adjustment plate 233 a that opens and closes the supply port 232 by moving up and down as shown in FIG. 6. In addition, an adjustment plate 233b that opens and closes the supply port 232 by moving in the horizontal direction (corresponding to the width direction of the paper) can be provided along with the adjustment plate 233a in the vertical direction.

この場合、図6に示す調整板233aを備える構成では、供給口232の大きさを上下方向に可変させることで流体抵抗を可変させることができ、塗布ローラ212の周方向への塗布領域を調整することができ、これにより用紙100に対する搬送方向の塗布領域を制御することができる。また、図7に示す調整板233a、233bを備える構成では、開閉によって塗付ローラ212の周方向への塗付領域を調整することができるとともに、塗布ローラ212の軸方向への塗布領域を調整することができ、これにより用紙100に対する幅方向(搬送方向と直交する方向)の塗布領域も制御することができる。この図7に示す構成では、調整板233bは片方向に配置しているが、両側に配置することで用紙の幅方向の中央を基準とした中央基準の用紙搬送にも対応することができる。   In this case, in the configuration including the adjustment plate 233a shown in FIG. 6, the fluid resistance can be varied by varying the size of the supply port 232 in the vertical direction, and the coating region in the circumferential direction of the coating roller 212 is adjusted. This makes it possible to control the application area of the paper 100 in the transport direction. In the configuration including the adjustment plates 233a and 233b shown in FIG. 7, the application area in the circumferential direction of the application roller 212 can be adjusted by opening and closing, and the application area in the axial direction of the application roller 212 is adjusted. Accordingly, the application region in the width direction (direction orthogonal to the conveyance direction) with respect to the paper 100 can also be controlled. In the configuration shown in FIG. 7, the adjusting plate 233b is arranged in one direction. However, by arranging the adjusting plate 233b on both sides, it is possible to cope with the center reference sheet conveyance with the center in the sheet width direction as a reference.

また、厚さ規制部材214は、図8に示すように、塗布ローラ212との間の距離を制御することにより塗布膜厚を任意に調整でき、例えば、画像形成装置の操作表示部から所定の操作を行うことで、厚さ規制部材214が塗布ローラ212の周面に対して接線方向又は法線方向に図示しない駆動手段により移動して、調整できるようにしている。これにより、泡の塗布膜厚を任意の値に設定することができる。   Further, as shown in FIG. 8, the thickness regulating member 214 can arbitrarily adjust the coating film thickness by controlling the distance to the coating roller 212. For example, the thickness regulating member 214 can be controlled by a predetermined display from an operation display unit of the image forming apparatus. By performing the operation, the thickness regulating member 214 is moved and adjusted by a driving means (not shown) in a tangential direction or a normal direction with respect to the peripheral surface of the application roller 212. Thereby, the coating film thickness of foam can be set to an arbitrary value.

次に、貯留部の第2例について図9の模式的斜視説明図を参照して説明する。
この貯留部211は、円筒状の泡貯留容器300の軸方向一端側側面に導入口231を、他端側側面に排出口234をそれぞれ設け、泡貯留容器300内の軸方向に沿ってスクリュー状の移送撹拌部材701を配設し、移送撹拌部材701を回転することで泡210が供給口232に均一に高速で広がるようにしている。これにより、導入口231から排出口234側まで短時間で泡210を移送することができる。
Next, a second example of the reservoir will be described with reference to a schematic perspective explanatory view of FIG.
The storage portion 211 is provided with an inlet 231 on one side surface in the axial direction of the cylindrical foam storage container 300 and a discharge port 234 on the other side surface, and is screwed along the axial direction in the foam storage container 300. The transfer stirring member 701 is disposed, and the transfer stirring member 701 is rotated so that the bubbles 210 spread uniformly at a high speed to the supply port 232. Thereby, the bubble 210 can be transferred in a short time from the inlet 231 to the outlet 234 side.

また、導入口231は泡貯留容器300の上側に、排出口234は泡貯留容器300の下側にそれぞれ設けることで、泡210が消泡して均一性が失われた泡を効率よく回収することができる。つまり、消泡した泡は比重が重くなり、下にいく性質を利用する。排出口234は供給口232より下側に設けることが好ましく、泡貯留容器300の最下部に設けることがより好ましい。   Further, the introduction port 231 is provided on the upper side of the foam storage container 300, and the discharge port 234 is provided on the lower side of the foam storage container 300, whereby the foam 210 is defoamed and the foam lost in uniformity is efficiently recovered. be able to. In other words, the defoamed bubbles use the property that the specific gravity increases and goes down. The discharge port 234 is preferably provided below the supply port 232, and more preferably provided at the lowermost part of the foam storage container 300.

次に、貯留部の第3例について図10の模式的平面説明図を参照して説明する。
ここでは、貯留部211の泡貯留容器300内には導入口231から排出口234に向かって漸次狭くなる経路711を有し、この経路711の導入口231から排出口234に沿う方向(塗布ローラ212の軸方向)に供給口232が設けられている。このように構成することで、供給口232の幅方向全域に渡って泡210の供給圧が均一になり、また、経路711が狭くなっている分貯留部211内全体に泡210が充填されるまでに要する時間が短縮される。
Next, a third example of the reservoir will be described with reference to a schematic plan view of FIG.
Here, the bubble storage container 300 of the storage unit 211 has a path 711 that gradually narrows from the inlet 231 toward the outlet 234, and the direction along the outlet 234 from the inlet 231 of the path 711 (application roller) The supply port 232 is provided in the axial direction 212. With this configuration, the supply pressure of the bubbles 210 is uniform over the entire width direction of the supply port 232, and the bubbles 210 are filled in the entire storage portion 211 as the path 711 is narrowed. The time required until is reduced.

次に、貯留部の第4例について図11の模式的平面説明図を参照して説明する。
ここでは、泡貯留容器300の両端部に排出口234、234が配置され、これらの排出口234、234の間に導入口231が配置されている。これらの排出口234、導入口231、排出口234の並び方向(塗布ローラ212の軸方向)に沿って供給口232が設けられている。このように構成することで、導入口231から導入される泡210が両側に広がることになり、容器300内に泡210が広がる距離が短くなる分、より速く泡210を貯留部211に貯めることができる。また、供給口232と排出口234の距離が短くなるのでより泡210の供給圧(塗布ローラ212に供給する圧力)を均一に保つことができる。
Next, the 4th example of a storage part is demonstrated with reference to the typical plane explanatory view of FIG.
Here, the discharge ports 234 and 234 are disposed at both ends of the foam storage container 300, and the introduction port 231 is disposed between the discharge ports 234 and 234. A supply port 232 is provided along the direction in which the discharge port 234, the introduction port 231, and the discharge port 234 are arranged (the axial direction of the application roller 212). By configuring in this way, the foam 210 introduced from the inlet 231 spreads on both sides, and the distance that the foam 210 spreads in the container 300 is shortened, so that the foam 210 is stored in the storage unit 211 faster. Can do. Further, since the distance between the supply port 232 and the discharge port 234 is shortened, the supply pressure of the bubbles 210 (pressure supplied to the application roller 212) can be kept more uniform.

また、排出口234は用紙幅方向において塗布ローラ212よりも外側(供給口232より外側)に設けることが好ましい。このように構成することで、泡210の滞留がなくなり、消泡により均一性を失った泡が排出され易くなる。   The discharge port 234 is preferably provided outside the application roller 212 (outside the supply port 232) in the paper width direction. By comprising in this way, the stay of the bubble 210 is lose | eliminated and the bubble which lost the uniformity by defoaming becomes easy to be discharged | emitted.

次に、加熱手段501に第1例について図12ないし図14を参照して説明する。
加熱手段501は排出経路402に介装されており、前述したように排出経路402に排出された余剰泡を加熱することで消泡する(液状に戻す)。この加熱手段501は、熱伝導部505と、この熱伝導部505に熱を与える加熱部504で構成されている。
Next, a first example of the heating unit 501 will be described with reference to FIGS.
The heating means 501 is interposed in the discharge path 402 and defoams (returns to a liquid state) by heating the excess bubbles discharged to the discharge path 402 as described above. The heating unit 501 includes a heat conducting unit 505 and a heating unit 504 that applies heat to the heat conducting unit 505.

ここで、熱伝導部505は、泡に触れる面積を増やすため、排出方向に沿って多数の穴(通孔)505aを有した形状をしている。ただし、熱伝導部505の形状ないし構成は、これに限定されるものではなく、例えば図13に示すように、ヒートシンクで見られるような多数のフィン部505bを櫛歯形状のものや、図14に示すように、網状のフィルタでも同様な効果が得られる。すなわち、排出経路402を排出される余剰泡に多数の面で接するような形状とすることが好ましい。また、熱伝導部505は、熱伝導率と耐腐食性の優れたアルミニウムで構成しているが、これに限定されるものではなく、例えば銅合金やSUS等の金属若しくは熱伝導率の高い、プラスチックで形成することもできる。   Here, the heat conduction part 505 has a shape having a large number of holes (through holes) 505a along the discharge direction in order to increase the area in contact with the bubbles. However, the shape or configuration of the heat conducting portion 505 is not limited to this. For example, as shown in FIG. 13, a large number of fin portions 505b as seen in a heat sink are comb-shaped, or FIG. As shown in FIG. 5, the same effect can be obtained even with a mesh filter. That is, it is preferable that the discharge path 402 has a shape that comes into contact with the excess bubbles to be discharged on a large number of surfaces. In addition, the heat conduction portion 505 is made of aluminum having excellent heat conductivity and corrosion resistance, but is not limited to this, for example, a metal such as a copper alloy or SUS or a high heat conductivity, It can also be made of plastic.

加熱部504は、例えばセラミックヒータを熱伝導部505の周囲を覆うように配置して構成している。加熱方法、伝熱方法はこの限りではなく、伝熱方法は、伝導伝熱、対流伝熱、放射伝熱いずれでもよく、また、発熱方式はマイクロウェーブ加熱、電磁誘導加熱、放射加熱、抵抗加熱等いずれでもよい。   The heating unit 504 is configured by arranging, for example, a ceramic heater so as to cover the periphery of the heat conducting unit 505. The heating method and heat transfer method are not limited to this, and the heat transfer method may be any of conduction heat transfer, convection heat transfer, and radiant heat transfer, and the heating method is microwave heating, electromagnetic induction heating, radiant heating, resistance heating. Any of these may be used.

次に、泡生成部に還元処理液を回収する例(図3の例)について図15及び図16を参照して説明する。
加熱部501の上流には排出ポンプ402が配置されており、下流に向けて余剰泡を排出する。排出ポンプ402の下流で加熱手段501によって余剰泡を加熱することで液状に戻して泡を消泡させる。
Next, an example (example of FIG. 3) of collecting the reducing treatment liquid in the foam generation unit will be described with reference to FIGS. 15 and 16.
A discharge pump 402 is disposed upstream of the heating unit 501 and discharges excess bubbles toward the downstream. The surplus bubbles are heated by the heating means 501 downstream of the discharge pump 402 to return to a liquid state and eliminate the bubbles.

更に、加熱部501の下流側で排出経路401は2つに分岐され、各分岐経路506、508には弁507と弁505が配置されており、分岐経路506は弁505の下流側で円筒状の多孔部材222の内部につながり、分岐経路508の弁507の下流側は容器(泡生成容器)221の上側から処理液201の液面の上面もしくは液面中につながっている。また、容器221には内部を大気に通じる大気連通路510とこの大気連通路510を開閉する大気開放弁509が設けられ、容器221内を大気に開放することが可能の構成としている。   Further, the discharge path 401 is branched into two on the downstream side of the heating unit 501, and a valve 507 and a valve 505 are arranged on each of the branch paths 506 and 508. The branch path 506 is cylindrical on the downstream side of the valve 505. The downstream side of the valve 507 of the branch path 508 is connected from the upper side of the container (foam generating container) 221 to the upper surface or the liquid surface of the processing liquid 201. In addition, the container 221 is provided with an atmosphere communication path 510 that communicates with the atmosphere and an atmosphere release valve 509 that opens and closes the atmosphere communication path 510 so that the interior of the container 221 can be opened to the atmosphere.

次に、この泡生成部に還元処理液を回収する例における後述する泡制御部によって行われる制御する泡塗布中の動作について図17のフロー図を参照して説明する。
この泡塗布中動作では、泡生成容器221の大気開放弁209を閉じ、排出ポンプ402をON状態(作動状態)にし、弁507を閉じ、弁505を開き、加熱手段501をOFF状態にする。
Next, the operation during the foam application to be controlled performed by the foam controller described later in an example of collecting the reducing treatment liquid in the foam generator will be described with reference to the flowchart of FIG.
In this operation during foam application, the air release valve 209 of the foam generation container 221 is closed, the discharge pump 402 is turned on (operating state), the valve 507 is closed, the valve 505 is opened, and the heating means 501 is turned off.

つまり、泡塗布中は、泡生成部205で生成された泡210が貯留部211に送られ、塗布ローラ212に供給されて泡塗布が行われる。このとき、貯留部211から塗布ローラ212に供給されないで残っている余剰泡は排出ポンプ402により排出経路401を通って泡生成部205側に送られる。ここで、分岐経路508の弁507が閉じられ、分岐経路506の弁505が開かれているので、余剰泡は分岐経路506から円筒状の多孔部材222内部に送られて再び泡生成に供される。   That is, during foam application, the foam 210 generated by the foam generation unit 205 is sent to the storage unit 211 and supplied to the application roller 212 to perform foam application. At this time, surplus bubbles remaining without being supplied from the storage unit 211 to the application roller 212 are sent to the foam generation unit 205 side through the discharge path 401 by the discharge pump 402. Here, since the valve 507 of the branch path 508 is closed and the valve 505 of the branch path 506 is opened, surplus bubbles are sent from the branch path 506 to the inside of the cylindrical porous member 222 and again used for foam generation. The

そして、この泡塗布中は、余剰泡を再び泡化するため、消泡する必要がないことから、加熱手段501をOFFにする、つまり、加熱手段501によって余剰泡を液状にもどさないまま泡生成部205に回収する。また、容器221内の圧を保つため大気開放弁509は閉じられている。この泡塗布中動作が本発明における第1モードである。   During the foam application, the excess foam is re-foamed, so there is no need to defoam, so the heating means 501 is turned off, that is, the foam is generated without returning the excess foam to the liquid state by the heating means 501. Collected in the unit 205. Further, the air release valve 509 is closed to maintain the pressure in the container 221. This operation during foam application is the first mode in the present invention.

次に、泡塗布動作が終了して余剰泡を回収し清掃する場合の制御について図18に示すフロー図を参照して説明する。
この泡回収清掃動作では、泡生成容器221の大気開放弁209を開放し、ポンプ203を逆転駆動して泡生成容器221から処理液201を容器202側に逆送し、泡生成容器221の液面高さを所定の高さに下げた状態にした後、加熱手段501をON状態(加熱状態)にし、排出ポンプ402をON状態(作動状態)にし、弁505を閉じ、弁507を開く。
Next, control when the foam application operation ends and excess foam is collected and cleaned will be described with reference to the flowchart shown in FIG.
In this foam recovery cleaning operation, the air release valve 209 of the foam generation container 221 is opened, the pump 203 is driven in reverse to reversely feed the processing liquid 201 from the foam generation container 221 to the container 202 side, and the liquid in the foam generation container 221 After the surface height is lowered to a predetermined height, the heating means 501 is turned on (heated state), the discharge pump 402 is turned on (operated state), the valve 505 is closed, and the valve 507 is opened.

つまり、余剰泡を回収する場合は、大気開放弁509を開放して泡生成容器221内を略大気圧にした状態に保ち、容器221内の処理液201を容器202に移送し、泡生成容器221内の処理液201の液面を、図16に示すように、泡生成が行えない位置(高さ:第1のスリット224より下の位置)まで下げる。この状態で、排出ポンプ402が稼動されることにより。搬送経路206内が負圧になり、スリット224から気体が搬送経路206内に入り、泡経路内全体の泡を貯留部211に完全に押し出すことが可能となる。   That is, when recovering surplus foam, the air release valve 509 is opened to keep the foam generation container 221 at a substantially atmospheric pressure, the processing liquid 201 in the container 221 is transferred to the container 202, and the foam generation container As shown in FIG. 16, the liquid surface of the processing liquid 201 in 221 is lowered to a position (height: a position below the first slit 224) where bubbles cannot be generated. By operating the discharge pump 402 in this state. The inside of the conveyance path 206 becomes negative pressure, gas enters the conveyance path 206 from the slit 224, and the bubbles in the entire bubble path can be completely pushed out to the storage unit 211.

そこで、加熱手段501をON状態にして、排出ポンプ402を稼動させる。この作用により、貯留部211から排出経路401に余剰泡が排出され、加熱手段501によって加熱されることで泡は破裂し液体と気体に分離する。このとき、弁505が閉じられ、弁507が開放されているので、液状化した泡(還元処理液)は分岐経路508を通って泡生成容器221の上部から内部の処理液201の液面上に排出される。この泡回収清掃動作が本発明における第2モードである。   Therefore, the heating unit 501 is turned on and the discharge pump 402 is operated. By this action, surplus bubbles are discharged from the storage unit 211 to the discharge path 401 and heated by the heating unit 501 so that the bubbles burst and are separated into liquid and gas. At this time, since the valve 505 is closed and the valve 507 is opened, the liquefied foam (reduction treatment liquid) passes through the branch path 508 from the top of the foam generation container 221 to the liquid surface of the internal treatment liquid 201. To be discharged. This bubble recovery cleaning operation is the second mode in the present invention.

この場合、分岐経路508の出口からは液体(還元処理液)と気体の混合物が排出され、処理液中に戻すと気体が処理液201内を上昇するときに、再度泡化することがあるので、前述したように泡生成容器221の処理液201の液面を下げるとともに、処理液201の液面より上から排出するようにして、再度の泡化を防止している。   In this case, a mixture of liquid (reducing treatment liquid) and gas is discharged from the outlet of the branch path 508, and when returned to the treatment liquid, when the gas rises in the treatment liquid 201, it may be bubbled again. As described above, the liquid level of the processing liquid 201 in the foam generation container 221 is lowered and discharged from above the liquid level of the processing liquid 201 to prevent re-foaming.

次に、上記画像形成装置の制御部の概要について図19のブロック説明図を参照して説明する。
この制御部は、本画像形成装置のシステム制御を行うCPU801と、CPU801が実行するプログラムなどの情報を格納するROM802と、ワーキングエリアとして使用するRAM803と、オペレータが各種設定等を行うため操作表示部804と、紙サイズ検知やジャム検知等を行う各種センサ805と、各種モータ等806と、各種センサ805及び各種モータ等806への出力制御信号を行うI/O807と、画像読取り装置(スキャナ)808を制御する読取り制御部809と、プロッタ部(印字機構部)810を制御する印字制御部811と、電話回線とのI/F制御を行う網制御装置812の制御も含めて、各種ファクシミリ通信制御を行う通信制御部813と、泡塗布装置200の制御を行う泡塗布制御部814等を備えている。
Next, an outline of the control unit of the image forming apparatus will be described with reference to a block diagram of FIG.
The control unit includes a CPU 801 that performs system control of the image forming apparatus, a ROM 802 that stores information such as programs executed by the CPU 801, a RAM 803 that is used as a working area, and an operation display unit that allows an operator to perform various settings. 804, various sensors 805 for detecting paper size and jam, various motors 806, I / O 807 for outputting control signals to various sensors 805 and various motors 806, and image reading device (scanner) 808 Various facsimile communication controls, including a read control unit 809 for controlling the print, a print control unit 811 for controlling the plotter unit (printing mechanism unit) 810, and a network control unit 812 for performing I / F control with the telephone line. A communication control unit 813 for performing control, a foam application control unit 814 for controlling the foam application device 200, and the like. To have.

ここで、各種センサ805には、処理液201が容器202内にあるか否か検知する液体エンド検知手段を含み、また、各種モータ806には、ポンプ203、塗布ローラ212、供給量/供給領域調整手段233、厚み規制手段214、搬送ローラ121、給紙ローラ132及びピックアップローラ131などを回転させるモータを含む。   Here, the various sensors 805 include liquid end detection means for detecting whether or not the processing liquid 201 is in the container 202, and the various motors 806 include a pump 203, a coating roller 212, a supply amount / supply area. The motor includes a motor that rotates the adjusting unit 233, the thickness regulating unit 214, the conveying roller 121, the paper feeding roller 132, the pickup roller 131, and the like.

また、泡塗布制御部814は、泡塗布を制御するとともに、前述した図17及び図18で説明した泡塗布中動作の制御及び泡回収清掃動作の制御を行う。   In addition, the foam application control unit 814 controls the foam application, and controls the operations during the foam application and the foam recovery cleaning operation described above with reference to FIGS. 17 and 18.

ここで、この画像形成装置における印刷処理の一例について図20ないし図22に示すフロー図を参照して説明する。
図20を参照して、画像出力要求を受信したら、処理液(セット剤)塗布機能が有効に設定されているか否かを判別する。そして、処理液塗布機能が有効設定であるときには、泡生成部205の容器221内に所定量以上の処理液201が入っているか否かを判別する。このとき、泡生成部205の容器221内に所定量以上の処理液201が入っていなければ、ポンプ203を駆動して容器202から処理液201を泡生成部205の容器221内に補給した後、また、所定量以上の処理液201が入っていれば、そのまま、泡生成部205に対して気体を送り込んで泡210の生成を開始する。これにより、泡貯留部211に泡210が前述したように供給され、延展され、余剰の泡210は排出口234から排出経路401を経て排出される。
Here, an example of printing processing in the image forming apparatus will be described with reference to flowcharts shown in FIGS.
Referring to FIG. 20, when the image output request is received, it is determined whether or not the processing liquid (setting agent) application function is set to be effective. When the processing liquid application function is set to be effective, it is determined whether or not a predetermined amount or more of the processing liquid 201 is in the container 221 of the foam generation unit 205. At this time, after the predetermined amount or more of the processing liquid 201 is not contained in the container 221 of the foam generation unit 205, the pump 203 is driven to supply the processing liquid 201 from the container 202 into the container 221 of the foam generation unit 205. In addition, if a predetermined amount or more of the processing liquid 201 is contained, a gas is sent to the bubble generation unit 205 as it is, and generation of the bubbles 210 is started. As a result, the foam 210 is supplied to the foam storage unit 211 as described above and extended, and the excess foam 210 is discharged from the discharge port 234 via the discharge path 401.

その後、図21に示すように、塗布ローラ212、搬送ベルト102の駆動を開始し、所定のタイミングで塗布量/塗布領域調整手段233を開き、塗布ローラ212の表面に泡210の供給を開始する。これにより、塗布ローラ212の表面には泡210が担持されて厚み規制部材214によって所定の厚みに規制され、搬送ベルト102側に移送される。   Thereafter, as shown in FIG. 21, the application roller 212 and the conveyance belt 102 are started to be driven, the application amount / application area adjusting unit 233 is opened at a predetermined timing, and the supply of the bubbles 210 to the surface of the application roller 212 is started. . As a result, the foam 210 is carried on the surface of the application roller 212, is regulated to a predetermined thickness by the thickness regulating member 214, and is transferred to the conveying belt 102 side.

そこで、給紙部(給紙カセット103)からの被記録媒体(用紙)100の給紙を行って搬送ベルト102に被記録媒体100を送り込み、塗布ローラ212によって被記録媒体100上の泡210を塗布し、当該被記録媒体100の先端がヘッドユニット101による印字位置に到達したときから印字動作を開始する。一方、用紙100への印字領域分に相当する塗布ローラ212への泡210の供給が終了したときに、泡貯留部211の塗布量/塗布領域調整手段213を閉じて塗布ローラ212への泡210の供給を停止する。   Therefore, the recording medium (paper) 100 is fed from the paper feeding unit (paper feeding cassette 103), and the recording medium 100 is sent to the conveying belt 102. Bubbles 210 on the recording medium 100 are generated by the application roller 212. After the application, the printing operation is started when the leading end of the recording medium 100 reaches the printing position by the head unit 101. On the other hand, when the supply of the foam 210 to the application roller 212 corresponding to the printing area on the paper 100 is finished, the application amount / application area adjusting means 213 of the foam storage unit 211 is closed and the foam 210 to the application roller 212 is closed. Stop supplying.

そして、印字が終了した被記録媒体100を排紙した後、印字枚数分の印字が終了するまで上記給紙からの処理を繰り返し、印字枚数に達したときには、泡生成部205に対する気体の送り込みを停止して泡生成を停止する。その後、給紙ローラ131、搬送ローラ132の動作を停止し、所定時間経過後、つまり、塗布ローラ212のクリーニングが確実に終了する所定時間経過後に、搬送ベルト102、塗布ローラ212の駆動動作を停止する。   Then, after discharging the recording medium 100 for which printing has been completed, the above-described processing from the paper feed is repeated until printing for the number of printed sheets is completed. When the number of printed sheets is reached, gas is fed into the bubble generating unit 205. Stop to stop foam generation. Thereafter, the operation of the paper feeding roller 131 and the conveying roller 132 is stopped, and after a predetermined time has elapsed, that is, after the predetermined time has elapsed when the cleaning of the coating roller 212 is reliably completed, the driving operation of the conveying belt 102 and the coating roller 212 is stopped. To do.

一方、図20において、例えば特別な被記録媒体を使用することで処理液の泡210を塗布する必要がない場合などには処理液塗布機能が無効に設定されるので、処理液塗布機能が有効設定でなければ、図22に示す処理に移行して、塗布ローラ212、搬送ベルト102の駆動を行い、給紙部からの被記録媒体100の給紙を行って、被記録媒体100に対するヘッドユニット101による印字を行った後排紙を行い、更に印字枚数に達したときには、給紙ローラ131、搬送ローラ132の動作を停止し、所定時間経過後、搬送ベルト102、塗布ローラ212の動作を停止する。   On the other hand, in FIG. 20, for example, when it is not necessary to apply the processing liquid bubbles 210 by using a special recording medium, the processing liquid application function is set to be invalid. If it is not set, the process proceeds to the process shown in FIG. 22, the application roller 212 and the conveyor belt 102 are driven, the recording medium 100 is fed from the paper feeding unit, and the head unit for the recording medium 100 After the printing by 101, the paper is discharged, and when the number of prints is reached, the operation of the paper feed roller 131 and the transport roller 132 is stopped, and the operation of the transport belt 102 and the coating roller 212 is stopped after a predetermined time has elapsed. To do.

ここで、塗布ローラ212をも回転させるのは、塗布ローラ212と紙搬送ベルト102のギャップは最大で紙厚+泡状セット剤210の膜厚以下であるので、塗布ローラ212を駆動して被記録媒体100の搬送が阻害されないようにするためである。   Here, the application roller 212 is also rotated because the gap between the application roller 212 and the paper conveying belt 102 is at most equal to or less than the paper thickness + the film thickness of the foam-like set agent 210. This is to prevent the conveyance of the recording medium 100 from being hindered.

なお、上記実施形態では泡塗布装置が画像形成前の用紙に対して泡を塗布する構成で説明しているが、記録ヘッドユニットの下流側に泡塗布装置を配置し、画像形成が行われた用紙上に泡を塗布する構成とすることもできる。また、上記実施形態では、泡状態にすることが可能な液体から泡を生成して塗布する例で説明しているが、本発明を、泡状態にすることが可能なゲルから泡を生成して被塗布部材に塗布する装置、この装置を備える画像形成装置にも適用することができる。   In the above embodiment, the foam application device is described as applying foam to the paper before image formation. However, the foam application device is arranged on the downstream side of the recording head unit to perform image formation. It can also be set as the structure which apply | coats a bubble on a paper. Moreover, although the said embodiment demonstrated in the example which produces | generates and apply | coats foam from the liquid which can be made into a foam state, this invention produces | generates foam from the gel which can be made into a foam state. The present invention can also be applied to an apparatus for applying to a member to be applied and an image forming apparatus provided with this apparatus.

また、上記実施形態では塗布部材(塗布手段:塗布ローラ)に供給されなかった余剰泡を回収する例で説明しているが、例えば、塗布部材上に残った泡を掻き取り清掃する清掃部材を備え、この清掃部材で掻き取られた余剰泡を回収する経路を設け、この経路に加熱手段を配置する構成とすることもできる。   Moreover, although the said embodiment demonstrated in the example which collect | recovers the surplus foam which was not supplied to the application member (application | coating means: application | coating roller), for example, the cleaning member which scrapes off the foam remaining on the application member and cleans it. It is also possible to provide a path for collecting excess bubbles scraped off by the cleaning member, and to arrange the heating means in this path.

また、本発明に係る泡塗布装置は、例えば電子写真方式の画像形成装置にも適用することができる。例えば、紙等の媒体上のトナー等の樹脂を含有する微粒子を乱すことなく、かつ当該樹脂微粒子を付着した媒体に泡状定着液を塗布後は素早く樹脂微粒子の媒体への定着が行われ、更に媒体に残油感が発生しない程度の微量塗布が可能な樹脂微粒子の定着液を用いた、定着方法及び定着装置、並びに画像形成方法及び画像形成装置にも適用できる。   The foam coating apparatus according to the present invention can also be applied to, for example, an electrophotographic image forming apparatus. For example, without disturbing fine particles containing resin such as toner on a medium such as paper, and after applying a foamy fixing solution to the medium to which the fine resin particles are attached, the fine resin particles are quickly fixed to the medium, Furthermore, the present invention can also be applied to a fixing method and a fixing device, and an image forming method and an image forming apparatus that use a fixing solution of resin fine particles that can be applied in a minute amount that does not cause a residual oil feeling on the medium.

そこで、電子写真方式の画像形成装置に適用した場合の例について図23及び図24を参照して説明する。なお、図23及び図24はローラ塗布手段においてローラ塗布面と未定着樹脂微粒子が接する部分の拡大説明図であり、図23は塗布ローラと記録媒体との接触面での加圧が相対的に高い場合、図24は同加圧が相対的に低い場合である。また、塗布ローラ1011の回転方向及び被塗布部材としての記録媒体1010の移動方向はいずれも図中の矢印方向とする。   An example of application to an electrophotographic image forming apparatus will be described with reference to FIGS. 23 and 24 are enlarged explanatory views of a portion where the roller coating surface and the unfixed resin fine particles are in contact with each other in the roller coating unit, and FIG. 23 shows relative pressure applied on the contact surface between the coating roller and the recording medium. When the pressure is high, FIG. 24 shows the case where the pressure is relatively low. In addition, both the rotation direction of the application roller 1011 and the movement direction of the recording medium 1010 as the member to be applied are the arrow directions in the drawing.

まず、塗布ローラ1011と記録媒体1010との接触面での加圧が高い場合、図23(a)に示す例では、塗布ローラ1011の塗布面で泡状の定着液1012は気泡1013の単層構造となっており、かつ、図23と図24の気泡径は同じであるため、泡状の定着液1012の層厚は同図(b)より薄くすることができる。しかしながら、図23(a)に示すように、気泡1013が単層であることから、気泡自身が表面張力により塗布ローラ1011の塗布面に付着しやすく、記録媒体1010上の樹脂微粒子(未定着トナー)1015の層へ定着液1012が不均一にしか塗布されず、樹脂微粒子1015が気泡1013に吸着して塗布ローラ1011の塗布面にオフセットしてしまう。   First, when the pressure on the contact surface between the application roller 1011 and the recording medium 1010 is high, in the example shown in FIG. 23A, the foam-like fixer 1012 is a single layer of bubbles 1013 on the application surface of the application roller 1011. Since the structure is the same and the bubble diameters in FIGS. 23 and 24 are the same, the layer thickness of the foam-like fixing solution 1012 can be made thinner than that in FIG. However, as shown in FIG. 23A, since the bubble 1013 is a single layer, the bubble itself tends to adhere to the application surface of the application roller 1011 due to surface tension, and resin fine particles (unfixed toner) on the recording medium 1010 ) The fixer 1012 is applied to the layer 1015 only non-uniformly, and the resin fine particles 1015 are attracted to the bubbles 1013 and offset to the application surface of the application roller 1011.

一方、図23(b)に示すように、塗布ローラ1011の塗布面で泡状の定着液1012が複数層の気泡層構造である場合、凹凸を有する未定着トナー1015の面への気泡の埋め込みが可能となり、泡状の定着液1012は気泡1013の層間で分離しやすくなり、トナー層に均一に塗布可能となり、トナーオフセットを極めて生じにくくすることができる。   On the other hand, as shown in FIG. 23B, when the foam-like fixing liquid 1012 has a plurality of bubble layer structures on the application surface of the application roller 1011, the bubbles are embedded in the surface of the unfixed toner 1015 having irregularities. Therefore, the foam-like fixing liquid 1012 can be easily separated between the layers of the bubbles 1013 and can be uniformly applied to the toner layer, so that toner offset can be made extremely difficult to occur.

したがって、塗布ローラ1011と記録媒体1010との接触面での加圧が高い場合、塗布ローラ1011に未定着トナー1015がオフセットしないようにするためには、予め生成する気泡の平均的な大きさを測定しておき、気泡層が複数層となるように、塗布ローラ1011上の泡状の定着液層の膜厚を気泡層の複数層分の厚みになるように制御すれば、塗布ローラ1011上には必ず複数層の気泡層からなる泡状の定着液層が形成され、トナーオフセットの防止が可能となる。   Therefore, when the pressure on the contact surface between the application roller 1011 and the recording medium 1010 is high, in order to prevent the unfixed toner 1015 from being offset to the application roller 1011, the average size of the bubbles generated in advance is set. If the film thickness of the foam-like fixing liquid layer on the coating roller 1011 is controlled to be the thickness of the plurality of bubble layers so that the bubble layer becomes a plurality of layers, the measurement is performed on the coating roller 1011. In this case, a foam-like fixing liquid layer composed of a plurality of bubble layers is always formed, and toner offset can be prevented.

また、塗布ローラ1011と記録媒体1010との接触面での加圧が低い場合、図24(a)に示すように、塗布ローラ1011の塗布面で泡状の定着液1012は気泡1013の単層構造となっているため、凹凸を有する未定着トナー1015の面への気泡が付着しやすくなり、塗布ローラ1011の面から気泡層が剥離し、泡状の定着液1012は未定着トナー1015に塗布される。   Further, when the pressure on the contact surface between the application roller 1011 and the recording medium 1010 is low, the foam-like fixer 1012 on the application surface of the application roller 1011 is a single layer of bubbles 1013 as shown in FIG. Due to the structure, bubbles easily adhere to the surface of the unfixed toner 1015 having irregularities, the bubble layer is peeled off from the surface of the application roller 1011, and the foam-like fixing liquid 1012 is applied to the unfixed toner 1015. Is done.

一方、図24(b)に示すように、塗布ローラ1011の塗布面で泡状の定着液1012が複数層の気泡層構造である場合、気泡1013どうしの結合が強いため、気泡1013は塗布ローラ1011側に残りやすく、逆に未定着トナー1015が気泡1013に付着して、結果として塗布ローラ1011の面に未定着トナー1015がオフセットする。   On the other hand, as shown in FIG. 24B, when the foam-like fixer 1012 has a multi-layered bubble layer structure on the application surface of the application roller 1011, the bubbles 1013 are strongly coupled to each other, and therefore the bubbles 1013 The unfixed toner 1015 tends to remain on the 1011 side, and conversely, the unfixed toner 1015 adheres to the bubbles 1013. As a result, the unfixed toner 1015 is offset on the surface of the application roller 1011.

したがって、塗布ローラ1011と記録媒体1010との接触面での加圧が低い場合、予め気泡の平均的な大きさを測定しておき、塗布ローラ面で単層の気泡層構造の泡状の定着液となるように液層厚みを制御すれば、塗布ローラ上には単層の気泡層構造の液膜が形成され、高加圧力条件でトナーオフセットを防止できる。また、塗布ローラ1011に未定着トナー1015がオフセットしないようにするためには、塗布ローラ1011上の気泡層が厚すぎると塗布ローラ1011と記録媒体1010との接触部に気泡層の流動が生じ、トナー粒子がその流れに沿って移動してしまし、画像が流れる不具合が発生するので、流動性が生じない範囲に泡状の定着液層の膜厚を制御することが好ましい。   Accordingly, when the pressure on the contact surface between the coating roller 1011 and the recording medium 1010 is low, the average size of the bubbles is measured in advance, and the single-celled bubble layer structure is fixed on the surface of the coating roller. If the thickness of the liquid layer is controlled so as to be a liquid, a liquid film having a single-layer bubble layer structure is formed on the coating roller, and toner offset can be prevented under high pressure conditions. Further, in order to prevent the unfixed toner 1015 from being offset to the application roller 1011, if the bubble layer on the application roller 1011 is too thick, the bubble layer flows at the contact portion between the application roller 1011 and the recording medium 1010. Since the toner particles move along the flow and an image flows in a trouble, it is preferable to control the film thickness of the foam-like fixing liquid layer in a range where fluidity does not occur.

このように、泡状の定着液に含有される気泡の大きさ、加圧力に応じて、定着液層の膜厚を制御することで、塗布ローラのような接触塗布手段へのトナーオフセットや画像流れを防止し、極めて微小の塗布による定着を可能とすることができる。   In this way, by controlling the film thickness of the fixing liquid layer according to the size and pressure of the bubbles contained in the foam-like fixing liquid, the toner offset or image on the contact application means such as the application roller is controlled. It is possible to prevent the flow and to fix by extremely minute application.

すなわち、樹脂微粒子の少なくとも一部を溶解又は膨潤させて樹脂微粒子を軟化させる軟化剤を用い、接触塗布手段にて媒体上の当該樹脂微粒子に定着液を塗布することで当該樹脂微粒子を媒体に定着する方法であり、当該定着液を該媒体上の当該樹脂微粒子表面に付与するときに、当該微粒子に定着液が接する塗布で、当該定着液が気泡を含有した泡状形態となっており、更に当該泡状の定着液層の膜厚を加圧力に応じて制御することにより、塗布ローラのような接触塗布手段へのトナーオフセットや画像流れを防止し、極めて微小の塗布による定着を可能とすることができる。また、樹脂微粒子として、電子写真技術に用いるトナー微粒子に対する効果が高く、この樹脂微粒子の層厚に応じて泡状の定着液層の膜厚を制御することでオフセットや画像流れを防止できる。   That is, using a softening agent that softens the resin fine particles by dissolving or swelling at least a part of the resin fine particles, the fixing solution is applied to the resin fine particles on the medium by contact coating means, and the resin fine particles are fixed to the medium. When the fixing solution is applied to the surface of the resin fine particles on the medium, the fixing solution is in a foamed form containing bubbles by applying the fixing solution to the fine particles. By controlling the film thickness of the foam-like fixing liquid layer according to the applied pressure, toner offset to the contact application means such as an application roller and image flow can be prevented, and fixing by extremely minute application is possible. be able to. Further, the resin fine particles are highly effective for the toner fine particles used in the electrophotographic technology, and offset and image flow can be prevented by controlling the film thickness of the foam-like fixing liquid layer according to the layer thickness of the resin fine particles.

本発明に係る泡塗布装置を備える画像形成装置の一例を示す全体構成図である。It is a whole lineblock diagram showing an example of an image forming device provided with a foam application device concerning the present invention. 本発明に係る泡塗布装置を備える画像形成装置の他の例を示す全体構成図である。It is a whole block diagram which shows the other example of an image forming apparatus provided with the foam coating apparatus which concerns on this invention. 本発明に係る泡塗布装置を備える画像形成装置の更に他の例を示す全体構成図である。It is a whole block diagram which shows the further another example of an image forming apparatus provided with the foam coating device which concerns on this invention. 同泡塗布装置の泡生成部の一例を示す模式的説明図である。It is typical explanatory drawing which shows an example of the foam production | generation part of the same foam application apparatus. 同泡塗布装置の貯留部の第1例を示す模式的斜視説明図である。It is a typical perspective explanatory view showing the 1st example of the storage part of the foam application device. 同じく塗布量/塗布領域調整手段の一例を示す斜視説明図である。It is perspective explanatory drawing which similarly shows an example of an application quantity / application area | region adjustment means. 同じく塗布量/塗布領域調整手段の他の例の説明に供する斜視説明図である。FIG. 10 is a perspective explanatory view for explaining another example of the application amount / application area adjusting means. 同じく塗布膜厚の調整の説明に供する説明図である。It is explanatory drawing similarly used for description of adjustment of a coating film thickness. 同泡塗布装置の貯留部の第2例を示す模式的斜視説明図である。It is a typical perspective explanatory view showing the 2nd example of the storage part of the foam application device. 同泡塗布装置の貯留部の第3例を示す模式的斜視説明図である。It is a typical perspective explanatory view showing the 3rd example of the storage part of the foam application device. 同泡塗布装置の貯留部の第4例を示す模式的斜視説明図である。It is a typical perspective explanatory view showing the 4th example of the storage part of the foam application device. 加熱手段の一例を示す斜視説明図である。It is perspective explanatory drawing which shows an example of a heating means. 加熱手段の他の例を示す斜視説明図である。It is perspective explanatory drawing which shows the other example of a heating means. 加熱手段の更に他の例を示す斜視説明図である。It is perspective explanatory drawing which shows the further another example of a heating means. 図3の画像形成装置における泡生成部への余剰泡回収の例の説明に供する模式的説明図である。It is typical explanatory drawing with which it uses for description of the example of the excess bubble collection | recovery to the foam production | generation part in the image forming apparatus of FIG. 同じく泡回収清掃動作の説明に供する模式的説明図である。It is a typical explanatory view similarly used for explanation of foam recovery cleaning operation. 泡塗布中動作(第1モード)の制御の説明に供するフロー図である。It is a flowchart with which it uses for description of control of operation | movement (1st mode) during foam application. 泡回収清掃動作(第2モード)の制御の説明に供するフロー図である。It is a flowchart with which it uses for description of control of bubble collection | recovery cleaning operation (2nd mode). 同画像形成装置の制御部の概要を説明するブロック説明図である。FIG. 2 is a block explanatory diagram illustrating an overview of a control unit of the image forming apparatus. 同制御部による印刷処理の一例の説明に供するフロー図である。It is a flowchart with which it uses for description of an example of the printing process by the control part. 同じく図20に続く処理の説明に供するフロー図である。It is a flowchart with which it uses for description of the process which similarly follows FIG. 同じく図20に続く処理の説明に供するフロー図である。It is a flowchart with which it uses for description of the process which similarly follows FIG. 電子写真方式の画像形成装置に適用した場合の塗布ローラと記録媒体との接触面での加圧が相対的に高い状態でのローラ塗布面と未定着樹脂微粒子が接する部分の拡大説明図である。FIG. 4 is an enlarged explanatory view of a portion where a roller coating surface and unfixed resin fine particles are in contact with each other when the pressure applied on the contact surface between a coating roller and a recording medium is relatively high when applied to an electrophotographic image forming apparatus. . 同じく塗布ローラと記録媒体との接触面での加圧が相対的に低い状態でのローラ塗布面と未定着樹脂微粒子が接する部分の拡大説明図である。FIG. 6 is an enlarged explanatory view of a portion where the roller application surface and the unfixed resin fine particles are in contact with each other when the pressure on the contact surface between the application roller and the recording medium is relatively low.

符号の説明Explanation of symbols

100…被記録媒体(用紙)
101…記録ヘッドユニット
102…搬送ベルト
103…給紙トレイ
200…泡塗布装置
201…処理液(泡状態になる液体又はゲル若しくは液体及びゲル)
210…泡
205…泡生成部
206…搬送経路
211…貯留部
212…塗布ローラ
234…排出口
401…排出経路
402…排出ポンプ
501…加熱手段
100: Recording medium (paper)
DESCRIPTION OF SYMBOLS 101 ... Recording head unit 102 ... Conveyor belt 103 ... Paper feed tray 200 ... Foam coating apparatus 201 ... Processing liquid (liquid or gel which becomes a foam state, or liquid and gel)
DESCRIPTION OF SYMBOLS 210 ... Bubble 205 ... Bubble production | generation part 206 ... Conveyance path | route 211 ... Storage part 212 ... Coating roller 234 ... Discharge port 401 ... Discharge path 402 ... Discharge pump 501 ... Heating means

Claims (6)

被記録媒体に画像を形成する画像形成手段と、
前記被記録媒体又は被記録媒体に塗布するための中間部材に対して液体及びゲルの少なくともいずれかの処理液を泡状にした泡を塗布する泡塗布手段と、を備え、
前記泡塗布手段は、
前記泡を塗布する塗布手段と、
塗布されずに残った余剰泡を回収する経路と、
前記経路内で前記余剰泡を加熱して前記余剰泡を液状に戻す加熱手段と、を有している
ことを特徴とする画像形成装置。
Image forming means for forming an image on a recording medium;
A foam application means for applying a foam in which at least one of a liquid and a gel treatment liquid is applied to the recording medium or an intermediate member for application to the recording medium;
The foam applying means is
Application means for applying the foam;
A path for collecting excess foam remaining without being applied;
An image forming apparatus comprising: heating means for heating the surplus bubbles in the path to return the surplus bubbles to a liquid state.
前記加熱手段によって前記余剰泡を加熱する第1のモードと、前記加熱手段によって前記余剰泡を加熱しない第2のモードとを備えていることを特徴とする画像形成装置。   An image forming apparatus comprising: a first mode in which the surplus bubbles are heated by the heating unit; and a second mode in which the surplus bubbles are not heated by the heating unit. 前記経路は前記処理液から前記泡を生成する泡生成手段、前記泡生成手段に供給する前記処理液を収容した処理液収容部又は廃棄用収容部に接続されていることを特徴とする画像形成装置。   The path is connected to a bubble generating unit that generates the bubbles from the processing liquid, a processing liquid storage unit that stores the processing liquid supplied to the bubble generating unit, or a disposal storage unit. apparatus. 前記加熱手段は前記余剰泡が接触する複数の面を有していることを特徴とする画像形成装置。   The image forming apparatus, wherein the heating unit has a plurality of surfaces with which the surplus bubbles come into contact. 前記余剰泡は、前記塗布手段に供給されなかった泡であることを特徴とする画像形成装置。   The image forming apparatus according to claim 1, wherein the surplus bubbles are bubbles that have not been supplied to the coating unit. 被塗布部材に液体及びゲルの少なくともいずれかの処理液を泡状にした泡を塗布する泡塗布装置において、
前記泡を塗布する塗布手段と、
塗布されずに残った余剰泡を回収する経路と、
前記経路内で前記余剰泡を加熱して前記余剰泡を液状に戻す加熱手段と、を有している
ことを特徴とする泡塗布装置。
In a foam application apparatus for applying foam in which a treatment liquid of at least one of liquid and gel is applied to a member to be coated,
Application means for applying the foam;
A path for collecting excess foam remaining without being applied;
And a heating means for heating the surplus bubbles to return the surplus bubbles to a liquid state in the path.
JP2008229693A 2007-12-12 2008-09-08 Image forming device, foam coating device Expired - Fee Related JP5181945B2 (en)

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JP2008229693A JP5181945B2 (en) 2008-09-08 2008-09-08 Image forming device, foam coating device
PCT/JP2008/072581 WO2009075339A1 (en) 2007-12-12 2008-12-04 Image forming apparatus and foam application device
CN2008801206485A CN101896348B (en) 2007-12-12 2008-12-04 Image forming apparatus and foam application device
EP08860317A EP2231407B1 (en) 2007-12-12 2008-12-04 Image forming apparatus and foam application device
US12/744,537 US8540337B2 (en) 2007-12-12 2008-12-04 Image forming apparatus and foam application device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015157452A (en) * 2014-02-25 2015-09-03 セイコーエプソン株式会社 Liquid discharge device and pretreatment method of medium
JP2015223734A (en) * 2014-05-27 2015-12-14 キヤノン株式会社 Image formation method, image formation device, image recording method, image recording device, and method and device of producing three-dimensional object

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969179A (en) * 1982-10-13 1984-04-19 Toshin Kogyo Kk Applying method of foamed liquid
JPS62241572A (en) * 1986-04-11 1987-10-22 Nordson Kk Method for joining casting mold model made of assembly type foamed resin and device for coating its form type hot-melt adhesive
JPH07100415A (en) * 1993-10-05 1995-04-18 Taikisha Ltd Aqueous coating mist removing apparatus
JPH08327788A (en) * 1995-05-29 1996-12-13 Mitsubishi Heavy Ind Ltd Waste liquid evaporation device
JP2002517341A (en) * 1998-06-11 2002-06-18 レックスマーク・インターナショナル・インコーポレーテツド Coating mechanism for inkjet printer
JP2004330569A (en) * 2003-05-06 2004-11-25 Seiko Epson Corp Ink jet type printing machine and its pretreatment liquid application method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969179A (en) * 1982-10-13 1984-04-19 Toshin Kogyo Kk Applying method of foamed liquid
JPS62241572A (en) * 1986-04-11 1987-10-22 Nordson Kk Method for joining casting mold model made of assembly type foamed resin and device for coating its form type hot-melt adhesive
JPH07100415A (en) * 1993-10-05 1995-04-18 Taikisha Ltd Aqueous coating mist removing apparatus
JPH08327788A (en) * 1995-05-29 1996-12-13 Mitsubishi Heavy Ind Ltd Waste liquid evaporation device
JP2002517341A (en) * 1998-06-11 2002-06-18 レックスマーク・インターナショナル・インコーポレーテツド Coating mechanism for inkjet printer
JP2004330569A (en) * 2003-05-06 2004-11-25 Seiko Epson Corp Ink jet type printing machine and its pretreatment liquid application method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015157452A (en) * 2014-02-25 2015-09-03 セイコーエプソン株式会社 Liquid discharge device and pretreatment method of medium
JP2015223734A (en) * 2014-05-27 2015-12-14 キヤノン株式会社 Image formation method, image formation device, image recording method, image recording device, and method and device of producing three-dimensional object

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