JP2004361474A - Developing unit and image recording apparatus - Google Patents

Developing unit and image recording apparatus Download PDF

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Publication number
JP2004361474A
JP2004361474A JP2003156576A JP2003156576A JP2004361474A JP 2004361474 A JP2004361474 A JP 2004361474A JP 2003156576 A JP2003156576 A JP 2003156576A JP 2003156576 A JP2003156576 A JP 2003156576A JP 2004361474 A JP2004361474 A JP 2004361474A
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Japan
Prior art keywords
unit
drying unit
drying
developing
developing device
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JP2003156576A
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Japanese (ja)
Inventor
Tatsuhiro Ando
樹宏 安藤
Masato Doi
正人 土居
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Konica Minolta Medical and Graphic Inc
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Konica Minolta Medical and Graphic Inc
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Priority to JP2003156576A priority Critical patent/JP2004361474A/en
Publication of JP2004361474A publication Critical patent/JP2004361474A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a developing unit capable of suppressing a temperature rise of the exterior surface of the unit by heat emitted from a drying section and capable of shortening the waiting time until the drying section attains a set temperature and to provide an image recording apparatus. <P>SOLUTION: The developing unit includes a processing tank for developing photosensitive paper exposed according to image information while conveying the paper and a drying section in a unit case, and a space 41 comparted between the drying section 26 and an exterior part 21b of the unit case 21a is provided near the drying section, and an open-air passage 42 is provided between the drying section and the exterior part of the unit case so that the open air is introduced into the drying section or a part near the section. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、露光済み感光材料を現像処理する現像装置及びこの現像装置を備える画像記録装置に関するものである。
【0002】
【従来の技術】
露光済み感光紙を現像処理する現像装置が下記特許文献1のように公知である。かかる現像装置は現像処理、定着処理及び安定処理のための複数の処理槽及び乾燥部を備え、感光紙を複数の処理槽及び乾燥部へと順々に搬送することで現像処理する。従来の現像装置における乾燥部の近傍を図6に示す。ヒータを内部に含む乾燥部から熱を放出し、その熱でその下方を方向Fへと装置外部に向け搬送される感光紙Sを乾燥させる。
【0003】
ところが、乾燥部から放出される熱により外装表面Gが暖められるため、外装表面Gに触れると、熱いと感じることがあった。また、乾燥部は外気を取り込んで温調するので設定温度に到達するまで待ち時間がかかり、生産性の低下につながってしまう。
【0004】
下記特許文献2には、 熱に弱い表示パネルを乾燥部から発生する熱から隔離して表示パネルへの熱の影響を確実に抑制し、乾燥部での外気の加熱効率を向上する感光材料乾燥装置用案内構造が開示されているが、乾燥部と外装との熱伝導の関係を改善するものではない。
【0005】
【特許文献1】
特開平06−251209号公報
【0006】
【特許文献2】
特開平09−130639号公報
【0007】
【発明が解決しようとする課題】
本発明は、上記従来技術の問題に鑑み、乾燥部から放出される熱による外装表面の温度上昇を抑えることができ、また、乾燥部が設定温度に到達するまでの待ち時間を短縮できるようにした現像装置、及びこの現像装置を備える画像記録装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するために、本発明による現像装置は、画像情報に基づいて露光された感光材料を搬送しながら現像処理するための処理槽及び乾燥部を装置筐体内に備える現像装置であって、前記乾燥部と前記装置筐体の外装部との間に仕切られた空間を前記乾燥部近傍に設けたことを特徴とする。
【0009】
この現像装置によれば、乾燥部と外装部との間に仕切られた空間を設けることにより、外装部の表面に乾燥部から放出された熱が直接伝わらなくなるので、外装部の表面の温度上昇を抑えることができる。
【0010】
本発明による別の現像装置は、画像情報に基づいて露光された感光材料を搬送しながら現像処理するための処理槽及び乾燥部を装置筐体内に備える現像装置であって、前記乾燥部と前記装置筐体の外装部との間に、外気を前記乾燥部またはその近傍に導くように通路を設けたことを特徴とする。
【0011】
この現像装置によれば、乾燥部と外装部との間に外気を取り込む通路を設けることにより、乾燥部から放出された熱が外気で冷やされるので、外装部の表面の温度上昇を抑えることができるとともに、乾燥部から放出された熱で外気が暖められて乾燥部またはその近傍に達するので、乾燥部が設定温度に到達するまでの待ち時間を短縮できる。
【0012】
上記現像装置において前記乾燥部と前記外装部との間に仕切られた空間を前記乾燥部近傍に設け、前記仕切られた空間を構成する仕切部材の少なくとも一部が前記通路の少なくとも一部を構成することで、仕切られた空間と通路とをコンパクトに構成でき、通路自体も断熱効果を有するので、外装部の表面の温度上昇を更に抑えることができる。
【0013】
また、前記乾燥部と前記外装部との間に断熱材を設けることで、外装部の表面の温度上昇を効果的に抑えることができる。
【0014】
また、前記乾燥部内において前記乾燥部の熱源の上方に吸引ファン等の外気吸引機構を設けることが好ましい。これにより、乾燥部内で熱が上方に上がるのを防止し、外装部の表面の温度上昇を抑えることができる。また、暖められた外気を効率よく乾燥部に取り込むことができる。
【0015】
この場合、前記乾燥部内において前記熱源から前記外装部に向かう熱を妨げる方向に風を送るファンを設けることが好ましい。これにより、乾燥部で暖められた外気をファンにより外装部ではなく感光材料に向けて送ることができるので、乾燥部が設定温度に到達するまでの待ち時間を短縮でき、また、乾燥部の熱源である電熱ヒータ等のオン時間が減り、消費電力の削減に貢献できる。
【0016】
本発明による画像記録装置は、画像情報に基づいて感光材料に露光する露光装置と、上記現像装置と、を備えることを特徴とする。この画像記録装置によれば、現像装置において外装部の表面の温度上昇を抑えることができるとともに、乾燥部が設定温度に到達するまでの待ち時間を短縮できるので、画像記録の生産性を向上させることができ、また、乾燥部の熱源である電熱ヒータ等のオン時間が減り、消費電力の削減に貢献できる。
【0017】
【発明の実施の形態】
以下、本発明による実施の形態について図面を用いて説明する。図1は本実施の形態による現像装置を含む画像記録装置全体の外観を示す斜視図である。図2は図1の画像記録装置の内部を正面側から見た図である。図3は図1の現像装置の内部を正面側から見た図である。
【0018】
図1、図2に示すように、画像記録装置1は、銀塩カラー感光材料(以下、単に「感光材料」ともいう。)に露光し画像を形成する露光部11と、露光された感光材料を現像する現像部21と、を備え、例えば、印刷出力対象の絵柄、色調、文章、文字等の確認を行うためのカラープルーフ(校正用サンプル)を作成するカラープルーフ作成装置を構成できる。
【0019】
露光部11は、前面からメンテナンスできるように開閉可能な前面パネル5と、各種情報の表示とタッチパネルからなり装置全体の操作のために入力可能な表示部2と、内部にロール状の銀塩カラー感光材料である感光紙を収容したカートリッジ13を給紙カバー3,4の開放後に装填可能な装填部12,12’と、を備える。図1では装填部12,12’にカートリッジ13を装填する前、装填した後の状態を示している。
【0020】
現像部21は、メンテナンスのために開閉可能な上面パネル6と、前面には、現像処理液等の補充等のために開閉可能に設けられた補給パネル7と、を備える。
【0021】
図2に示すように、画像記録装置1の露光部11は、内部にロール状に巻かれたシート状の感光材料の感光紙を収納した専用のカートリッジ13を装填し収容する装填部12,12’と、装填部12,12’に装填されたカートリッジ13から感光紙を給送する給送部14と、給送部14から給送された感光紙を外周面に真空吸引し保持しながら主走査のために回転方向Rに回転する円筒体18と、円筒体18上の感光紙に対し画像情報に基づいてLED光等の光ビームを露光する光学ユニット16と、光学ユニット16を副走査のために副走査方向(図2の紙面垂直方向)に搬送する副走査部17と、画像記録後のドラム上の感光紙を剥離する剥離部材18aと、剥離された感光紙をガイドするガイド部15と、を備える。
【0022】
図2のように、現像部21は、露光後の感光紙の現像処理を行うために複数の処理槽として、上流側から順に、現像を行う現像槽23と、定着処理を行う定着槽24と、安定処理を行う第1安定槽25aと、第2安定槽25bと、第3安定槽25cと、第3安定槽25cから送られた感光紙の乾燥処理を行う乾燥部26と、を装置筐体21a内に備える。乾燥部26で乾燥された感光紙は搬送ローラ対26aにより出口27から外部の排出部28に排出される。
【0023】
現像部21について図2,図3を参照して更に説明する。図3のように、現像槽23は、入口30から送られてきた感光紙を現像するための現像液が満たされており、感光紙を現像液中で複数のローラ23aにより図の右、左、下、上の順に搬送しながら現像し、定着槽24へと送る。
【0024】
定着槽24は、現像槽23から送られてきた感光紙を定着処理するための定着液が満たされており、感光紙を定着液中で複数のローラ24aにより図の上下方向に搬送しながら定着処理を行い、第1安定槽25aへと送る。
【0025】
第1安定槽25aは、定着槽24から送られてきた感光紙を安定処理するための安定液が満たされており、感光紙を安定液中で複数のローラ25dにより図の上下方向に搬送しながら安定処理を行い、次の第2安定槽25bに送る。同様にして、第2安定槽25b及び第3安定槽25cは、感光紙を安定処理するための各安定液が満たされており、感光紙を各安定液中で複数のローラ25e、25fにより図の上下方向に搬送しながら安定処理を行い、乾燥部26へと送る。
【0026】
図3のように、現像部21は、現像液を貯蔵しポンプにより管31aを通して現像槽23に補充するためのタンク31と、定着液を貯蔵しポンプにより管32aを通して定着槽24に補充するためのタンク32と、安定液を貯蔵しポンプにより管33aを通して第3安定槽25cに補充するためのタンク33と、水を貯蔵し各ポンプにより管34aを通して現像槽23、定着槽24及び第3安定槽25cにそれぞれ補水するためのタンク34と、を下部に備える。
【0027】
現像部21には、各処理槽23,24,25a、25b、25c内のローラ23a,24a,25d,25e,25f及び乾燥部26内のローラ26aを回転駆動するための駆動モータが配置され、共通の回転軸及び歯車機構等を介して各ローラを回転駆動する。
【0028】
乾燥部26では、複数の搬送ローラ対26aで感光紙を排出部27へとガイド26dで案内しながら搬送する。ガイド26dの近傍に温度センサ46が配置され、乾燥部26のケース26b内には通電により発熱するヒータ48(図5)等が配置されている。
【0029】
図4により図3の乾燥部近傍の構造を説明する。図4は、図1〜図3の画像記録装置の現像部内の乾燥部近傍の内部を正面から見た図である。
【0030】
図4に示すように、装置筐体21a内の乾燥部26のケース26b近傍上方に、装置筐体21aで構成される外装部21bとケース26bとの間に仕切空間41を設けるとともに、外装部21bに開口した外気取入口43を有する外気通路42を仕切区間41に沿うようにして設けている。
【0031】
外気通路42は、ダクト部材42a,42b,42c,42dからダクト状に構成され、外気取入口43からの外気を図4の矢印方向Kに外気出口44から乾燥部26のケース26bの近傍へと導くようになっている。
【0032】
仕切区間41は、ダクト部材42a及びダクト部材42c等から構成されており、内部に、例えばガラス繊維のような低熱伝導率の断熱材41aが詰め込まれていおり、仕切空間41による断熱効果が増す。このように、ダクト部材41a、42cが仕切空間を構成する仕切部材の少なくとも一部を構成するので、仕切空間と通路とを大型化を避けてコンパクトに構成できる。
【0033】
また、ダクト部材42bの下方に乾燥部26が位置し、乾燥部26と仕切空間41との間に外気通路42が位置するので、外気通路42により断熱効果が更に増すとともに、外気が外気通路42内を通過することで乾燥部26からの熱で暖められる。
【0034】
図4の構成によれば、乾燥部26と外装部21bとの間に仕切られた仕切空間41を乾燥部26の近傍に設けることで、外装部21bの表面に乾燥部26から放出された熱が直接伝わらなくなるので、外装部21bの表面の温度上昇を抑えることができる。また、仕切空間41内に断熱材41aを設けることで外装部21bの表面の温度上昇を更に抑えることができる。
【0035】
また、乾燥部26と外装部21bとの間に外気を外気取入口43から取り込む外気通路42を設けることで乾燥部26から放出された熱が外気で冷やされるので、外装部21bの表面の温度上昇を更に抑えることができる。
【0036】
また、外気通路42内で乾燥部26から放出された熱で外気が暖められて、出口44から乾燥部26・ケース26b近傍に達するので、乾燥部26が設定温度に到達するまでの待ち時間を短縮できる。また、乾燥部26の熱源であるヒータのオン時間が減り、消費電力の削減に貢献できる。
【0037】
次に、図3,図4の乾燥部26の好ましい構成について図5を参照して説明する。図5は図3,図4の乾燥部26のケース26bを正面から内部を見た図である。
【0038】
図5に示すように、乾燥部26は、ケース26b内に、通電により発熱する熱源としてのヒータ48と、ヒータ48の上方に吸引ファン47と、ヒータ48からの熱をケース26bの下方で搬送中の感光材料Sに向けて送る乾燥ファン49とが設けられている。
【0039】
図5において、乾燥部26の上部に進入した外気が吸引ファン47によりケース26b内に矢印方向aから取り込まれ、その外気が吸引ファン47から矢印方向bへとヒータ48に送られる。ヒータ48で暖められた外気が乾燥ファン49へと矢印方向cから取り込まれ、乾燥ファン49に取り込まれた外気は矢印方向dへと乾燥ファン49の下方に送られ、図6の搬送中の感光紙Sを乾燥させる。
【0040】
なお、吸引ファン47はヒータ48からの放熱が乾燥部26の上部に伝わることを防ぐ作用を兼ね備えている。また、図4の外気通路42の外気出口44を図5の吸引ファンの近傍に配置することで、外気を効果的に取り込むように構成できる。
【0041】
以上の図5の構成によれば、吸引ファン47により乾燥部26内で熱が上方に上がるのを防止し、外装部21bの表面の温度上昇を抑えることができ、また、暖められた外気を効率よく乾燥部26に取り込むことができる。
【0042】
また、ヒータ48で温度上昇した外気が乾燥ファン49により搬送中の感光紙Sに効率的に送られるので、乾燥部26が設定温度に到達するまでの待ち時間を更に短縮でき、また、乾燥部26のヒータ48のオン時間が更に減り、消費電力の削減に貢献できる。
【0043】
以上のように本発明を実施の形態により説明したが、本発明はこれらに限定されるものではなく、本発明の技術的思想の範囲内で各種の変形が可能である。例えば、図1、図2では現像装置(現像部)21を画像記録装置1に付属したものとして説明したが、図3のような現像装置として独立した構成であってもよいことは勿論である。
【0044】
【発明の効果】
本発明の現像装置及び画像記録装置によれば、乾燥部から放出される熱による装置の外装表面の温度上昇を抑えることができ、また、乾燥部が設定温度に到達するまでの待ち時間を短縮できる。
【図面の簡単な説明】
【図1】本実施の形態による現像装置を含む画像記録装置全体の外観を示す斜視図である。
【図2】図1の画像記録装置の内部を正面側から見た図である。
【図3】図1の現像装置の内部を正面側から見た図である。
【図4】図1〜図3の画像記録装置の現像部内の乾燥部近傍の内部を正面から見た図である。
【図5】図3,図4の乾燥部26のケース26bを正面から内部を見た図である。
【図6】従来の現像装置における乾燥部の近傍を示す図である。
【符号の説明】
1・・・画像記録装置
11・・・露光部(露光装置)
21・・・現像部(現像装置)
21a・・装置筐体
21b・・・外装部
23・・・現像槽
24・・・定着槽
25a,25b,25c・・・第1安定槽、第2安定槽、第3安定槽
26・・・乾燥部
26b・・・乾燥部のケース
41・・・仕切空間
41a・・・断熱材
42・・・外気通路
42a〜42d・・・ダクト部材
47・・・吸引ファン
48・・・ヒータ
49・・・乾燥ファン
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a developing device for developing an exposed photosensitive material and an image recording apparatus including the developing device.
[0002]
[Prior art]
2. Description of the Related Art A developing device for developing an exposed photosensitive paper is known, as disclosed in Japanese Patent Application Laid-Open No. H11-163,837. Such a developing device includes a plurality of processing tanks and a drying unit for a developing process, a fixing process, and a stabilizing process, and performs a developing process by sequentially transporting the photosensitive paper to the plurality of processing tanks and the drying unit. FIG. 6 shows the vicinity of a drying unit in a conventional developing device. Heat is released from a drying unit including a heater inside, and the heat dries the photosensitive paper S conveyed downward in the direction F to the outside of the apparatus.
[0003]
However, since the exterior surface G is warmed by the heat released from the drying unit, the user may feel hot when touching the exterior surface G. In addition, since the drying unit takes in outside air to control the temperature, it takes a waiting time until the temperature reaches the set temperature, which leads to a decrease in productivity.
[0004]
Patent Document 2 below discloses a photosensitive material drying method that isolates a display panel that is vulnerable to heat from heat generated from a drying section, reliably suppresses the influence of heat on the display panel, and improves the heating efficiency of outside air in the drying section. Although a guide structure for an apparatus is disclosed, it does not improve the relation of heat conduction between the drying unit and the exterior.
[0005]
[Patent Document 1]
JP 06-251209 A
[Patent Document 2]
Japanese Patent Application Laid-Open No. 09-130639
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems of the related art, and can suppress an increase in the temperature of the exterior surface due to heat released from a drying unit, and can reduce a waiting time until the drying unit reaches a set temperature. It is an object to provide a developed developing device and an image recording apparatus provided with the developing device.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a developing device according to the present invention is a developing device including a processing tank and a drying unit for developing while transporting a photosensitive material exposed based on image information in an apparatus housing, A space partitioned between the drying section and an exterior part of the device housing is provided near the drying section.
[0009]
According to this developing device, by providing a partitioned space between the drying unit and the exterior unit, the heat released from the drying unit is not directly transmitted to the surface of the exterior unit, so that the temperature of the surface of the exterior unit increases. Can be suppressed.
[0010]
Another developing device according to the present invention is a developing device including a processing tank and a drying unit in a device housing for developing while transporting a photosensitive material exposed based on image information, wherein the drying unit and the drying unit A passage is provided between the exterior part of the apparatus housing and the outside part to guide the outside air to the drying part or its vicinity.
[0011]
According to this developing device, by providing a passage for taking in outside air between the drying unit and the exterior unit, the heat released from the drying unit is cooled by the outside air, so that the temperature rise on the surface of the exterior unit can be suppressed. In addition, since the outside air is warmed by the heat released from the drying unit and reaches the drying unit or its vicinity, the waiting time until the drying unit reaches the set temperature can be reduced.
[0012]
In the developing device, a space partitioned between the drying unit and the exterior unit is provided near the drying unit, and at least a part of a partition member that forms the partitioned space forms at least a part of the passage. By doing so, the partitioned space and the passage can be made compact, and the passage itself also has a heat insulating effect, so that a rise in the temperature of the surface of the exterior part can be further suppressed.
[0013]
Further, by providing a heat insulating material between the drying unit and the exterior unit, it is possible to effectively suppress a temperature rise on the surface of the exterior unit.
[0014]
Further, it is preferable to provide an outside air suction mechanism such as a suction fan in the drying section above the heat source of the drying section. Thus, it is possible to prevent the heat from rising upward in the drying unit, and to suppress the temperature rise on the surface of the exterior unit. Further, the warmed outside air can be efficiently taken into the drying section.
[0015]
In this case, it is preferable to provide a fan that sends air in a direction that hinders heat from the heat source toward the exterior unit in the drying unit. This allows the outside air warmed in the drying section to be sent by the fan toward the photosensitive material instead of the exterior section, so that the waiting time until the drying section reaches the set temperature can be reduced, and the heat source of the drying section can be reduced. , The on-time of the electric heater and the like can be reduced, which can contribute to a reduction in power consumption.
[0016]
An image recording apparatus according to the present invention includes: an exposure apparatus that exposes a photosensitive material based on image information; and the developing device. According to this image recording device, the temperature rise of the surface of the exterior part in the developing device can be suppressed, and the waiting time until the drying unit reaches the set temperature can be reduced, thereby improving the productivity of image recording. In addition, the on-time of the electric heater or the like, which is a heat source of the drying unit, is reduced, which can contribute to a reduction in power consumption.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the external appearance of the entire image recording apparatus including the developing device according to the present embodiment. FIG. 2 is a view of the inside of the image recording apparatus of FIG. 1 as viewed from the front side. FIG. 3 is a view of the inside of the developing device of FIG. 1 as viewed from the front side.
[0018]
As shown in FIGS. 1 and 2, the image recording apparatus 1 includes an exposure unit 11 that forms an image by exposing a silver halide color photosensitive material (hereinafter, also simply referred to as a “photosensitive material”), and an exposed photosensitive material. And a developing unit 21 for developing a color proof (proofing sample) for confirming a pattern, a color tone, a sentence, a character, and the like to be printed.
[0019]
The exposure unit 11 includes a front panel 5 that can be opened and closed so that maintenance can be performed from the front, a display unit 2 including a display of various information and a touch panel, which can be input for operation of the entire apparatus, and a roll-shaped silver halide color inside. Loading portions 12 and 12 ′ which can load a cartridge 13 containing photosensitive paper as a photosensitive material after opening the paper feed covers 3 and 4. FIG. 1 shows a state before and after the cartridge 13 is loaded into the loading units 12 and 12 ′.
[0020]
The developing unit 21 includes an upper panel 6 that can be opened and closed for maintenance, and a replenishment panel 7 that can be opened and closed for replenishing a developing solution and the like on the front surface.
[0021]
As shown in FIG. 2, the exposing section 11 of the image recording apparatus 1 includes loading sections 12 and 12 for loading and storing a dedicated cartridge 13 containing therein a sheet of photosensitive material of a photosensitive material wound in a roll. And a feeding section 14 for feeding photosensitive paper from the cartridge 13 loaded in the loading sections 12 and 12 ′, and the photosensitive paper fed from the feeding section 14 is mainly sucked and held on the outer peripheral surface by vacuum suction. A cylindrical body 18 that rotates in the rotation direction R for scanning, an optical unit 16 that exposes a photosensitive paper on the cylindrical body 18 to a light beam such as an LED light based on image information, For this purpose, a sub-scanning unit 17 that conveys in the sub-scanning direction (a direction perpendicular to the paper surface of FIG. 2), a peeling member 18a that peels the photosensitive paper on the drum after image recording, and a guide unit 15 that guides the peeled photosensitive paper And.
[0022]
As shown in FIG. 2, the developing unit 21 includes, as a plurality of processing tanks for performing a developing process of the exposed photosensitive paper, a developing tank 23 for performing development in order from an upstream side, and a fixing tank 24 for performing a fixing process. A first stabilizing tank 25a for performing stabilizing processing, a second stabilizing tank 25b, a third stabilizing tank 25c, and a drying unit 26 for performing drying processing of the photosensitive paper sent from the third stabilizing tank 25c. Provided in the body 21a. The photosensitive paper dried in the drying unit 26 is discharged from an outlet 27 to an external discharge unit 28 by a pair of conveying rollers 26a.
[0023]
The developing unit 21 will be further described with reference to FIGS. As shown in FIG. 3, the developing tank 23 is filled with a developing solution for developing the photosensitive paper sent from the inlet 30. The developing tank 23 is moved in the developing solution by a plurality of rollers 23a in the developing solution. , Developing, transporting in the order of lower, upper, and then to the fixing tank 24.
[0024]
The fixing tank 24 is filled with a fixing solution for fixing the photosensitive paper sent from the developing tank 23, and the photosensitive paper is fixed in the fixing solution while being transported in the fixing solution by a plurality of rollers 24a in the vertical direction in the figure. Processing is performed and sent to the first stabilization tank 25a.
[0025]
The first stabilizing tank 25a is filled with a stabilizing liquid for stabilizing the photosensitive paper sent from the fixing tank 24, and is transported in the stabilizing liquid by a plurality of rollers 25d in the vertical direction in the drawing. While performing the stabilization process, the sheet is sent to the next second stabilization tank 25b. Similarly, the second stabilizing tank 25b and the third stabilizing tank 25c are filled with the respective stabilizing liquids for stabilizing the photosensitive paper, and the photosensitive paper is separated by a plurality of rollers 25e and 25f in each stabilizing liquid. The stabilization process is performed while transporting the paper in the vertical direction, and the paper is sent to the drying unit 26.
[0026]
As shown in FIG. 3, the developing unit 21 stores a developing solution and a pump 31 for replenishing the developing tank 23 through a tube 31a by a pump, and a developing solution for storing the fixing solution and refilling the fixing tank 24 through a tube 32a by a pump. , A tank 33 for storing a stabilizing solution and refilling the third stabilizing tank 25c by a pump through a pipe 33a, and a developing tank 23, a fixing tank 24 and a third stabilizing tank for storing water through a pipe 34a by each pump. A tank 34 for refilling the tank 25c is provided at the bottom.
[0027]
A drive motor for rotating the rollers 23a, 24a, 25d, 25e, and 25f in the processing tanks 23, 24, 25a, 25b, and 25c and the roller 26a in the drying unit 26 is disposed in the developing unit 21. Each roller is rotationally driven via a common rotation shaft, a gear mechanism, and the like.
[0028]
In the drying section 26, the photosensitive paper is transported by a plurality of transport roller pairs 26a to the discharge section 27 while being guided by a guide 26d. A temperature sensor 46 is disposed in the vicinity of the guide 26d, and a heater 48 (FIG. 5) and the like, which generate heat when energized, are disposed in the case 26b of the drying unit 26.
[0029]
The structure near the drying unit in FIG. 3 will be described with reference to FIG. FIG. 4 is a front view of the inside of the developing section of the image recording apparatus of FIGS. 1 to 3 in the vicinity of the drying section.
[0030]
As shown in FIG. 4, a partition space 41 is provided between the case 26b and the exterior unit 21b formed of the device housing 21a above the drying unit 26 in the apparatus housing 21a near the case 26b. An outside air passage 42 having an outside air intake 43 opened to 21 b is provided along the partition section 41.
[0031]
The outside air passage 42 is formed in a duct shape from duct members 42a, 42b, 42c, and 42d, and the outside air from the outside air intake 43 is directed from the outside air outlet 44 to the vicinity of the case 26b of the drying unit 26 in the direction of arrow K in FIG. It is leading.
[0032]
The partition section 41 includes a duct member 42a, a duct member 42c, and the like. A heat insulating material 41a having a low thermal conductivity, such as glass fiber, is packed inside the partition section 41, and the heat insulating effect of the partition space 41 increases. As described above, since the duct members 41a and 42c form at least a part of the partition member that forms the partition space, the partition space and the passage can be made compact without increasing the size.
[0033]
Further, since the drying section 26 is located below the duct member 42b and the outside air passage 42 is located between the drying section 26 and the partition space 41, the heat insulation effect is further increased by the outside air passage 42, and the outside air is also removed from the outside air passage 42. By passing through the inside, it is heated by the heat from the drying unit 26.
[0034]
According to the configuration of FIG. 4, by providing the partition space 41 partitioned between the drying unit 26 and the exterior unit 21 b near the drying unit 26, the heat released from the drying unit 26 on the surface of the exterior unit 21 b is provided. Is not directly transmitted, so that the temperature rise of the surface of the exterior part 21b can be suppressed. Further, by providing the heat insulating material 41a in the partition space 41, the temperature rise on the surface of the exterior part 21b can be further suppressed.
[0035]
Further, by providing the outside air passage 42 for taking in outside air from the outside air intake 43 between the drying unit 26 and the exterior unit 21b, the heat released from the drying unit 26 is cooled by the outside air, so that the temperature of the surface of the exterior unit 21b is reduced. The rise can be further suppressed.
[0036]
In addition, since the outside air is heated by the heat released from the drying unit 26 in the outside air passage 42 and reaches the drying unit 26 and the vicinity of the case 26b from the outlet 44, the waiting time until the drying unit 26 reaches the set temperature is reduced. Can be shortened. In addition, the ON time of the heater, which is the heat source of the drying unit 26, is reduced, which can contribute to a reduction in power consumption.
[0037]
Next, a preferred configuration of the drying unit 26 in FIGS. 3 and 4 will be described with reference to FIG. FIG. 5 is a view of the case 26b of the drying unit 26 of FIGS.
[0038]
As shown in FIG. 5, the drying unit 26 includes a heater 48 serving as a heat source that generates heat when energized, a suction fan 47 above the heater 48, and heat transferred from the heater 48 below the case 26b. A drying fan 49 for feeding the photosensitive material S therein is provided.
[0039]
In FIG. 5, outside air that has entered the upper part of the drying unit 26 is taken into the case 26 b by the suction fan 47 from the arrow direction a, and the outside air is sent from the suction fan 47 to the heater 48 in the arrow direction b. The outside air warmed by the heater 48 is taken into the drying fan 49 in the direction of the arrow c, and the outside air taken in the drying fan 49 is sent below the drying fan 49 in the direction of the arrow d, and is exposed to light during conveyance in FIG. The paper S is dried.
[0040]
The suction fan 47 also has a function of preventing heat radiation from the heater 48 from being transmitted to the upper part of the drying unit 26. Further, by arranging the outside air outlet 44 of the outside air passage 42 in FIG. 4 near the suction fan in FIG. 5, it is possible to effectively take in outside air.
[0041]
According to the configuration in FIG. 5 described above, the suction fan 47 can prevent heat from rising upward in the drying unit 26, suppress a rise in the temperature of the surface of the exterior unit 21b, and reduce the warmed outside air. It can be efficiently taken into the drying unit 26.
[0042]
In addition, since the outside air whose temperature has been increased by the heater 48 is efficiently sent to the photosensitive paper S being conveyed by the drying fan 49, the waiting time until the drying unit 26 reaches the set temperature can be further reduced. The ON time of the heaters 26 is further reduced, which can contribute to a reduction in power consumption.
[0043]
As described above, the present invention has been described with the embodiments, but the present invention is not limited to these, and various modifications can be made within the technical idea of the present invention. For example, in FIGS. 1 and 2, the developing device (developing unit) 21 is described as being attached to the image recording device 1. However, it goes without saying that the developing device as shown in FIG. .
[0044]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the developing device and image recording device of this invention, the temperature rise of the exterior surface of an apparatus by the heat | fever emitted from a drying part can be suppressed, and the waiting time until the drying part reaches the set temperature is shortened. it can.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating an appearance of an entire image recording apparatus including a developing device according to an embodiment.
FIG. 2 is a view of the inside of the image recording apparatus of FIG. 1 as viewed from the front side.
3 is a view of the inside of the developing device of FIG. 1 as viewed from the front side.
FIG. 4 is a front view of the inside of a developing unit of the image recording apparatus of FIGS. 1 to 3 in the vicinity of a drying unit;
FIG. 5 is a view of a case 26b of the drying unit 26 of FIGS.
FIG. 6 is a view showing the vicinity of a drying unit in a conventional developing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Image recording apparatus 11 ... Exposure part (exposure apparatus)
21 ... Developing unit (developing device)
21a ... Device housing 21b ... Exterior part 23 ... Developing tank 24 ... Fixing tanks 25a, 25b, 25c ... First stabilizing tank, Second stabilizing tank, Third stabilizing tank 26 ... Drying section 26b Drying section case 41 Partition space 41a Heat insulating material 42 Outside air passages 42a to 42d Duct member 47 Suction fan 48 Heater 49・ Drying fan

Claims (7)

画像情報に基づいて露光された感光材料を搬送しながら現像処理するための処理槽及び乾燥部を装置筐体内に備える現像装置であって、
前記乾燥部と前記装置筐体の外装部との間に仕切られた空間を前記乾燥部近傍に設けたことを特徴とする現像装置。
A developing device including a processing tank and a drying unit for developing processing while transporting a photosensitive material exposed based on image information in an apparatus housing,
A developing device, wherein a space partitioned between the drying section and an exterior part of the apparatus housing is provided near the drying section.
画像情報に基づいて露光された感光材料を搬送しながら現像処理するための処理槽及び乾燥部を装置筐体内に備える現像装置であって、
前記乾燥部と前記装置筐体の外装部との間に、外気を前記乾燥部またはその近傍に導くように通路を設けたことを特徴とする現像装置。
A developing device including a processing tank and a drying unit for developing processing while transporting a photosensitive material exposed based on image information in an apparatus housing,
A developing device, wherein a passage is provided between the drying section and an exterior part of the apparatus housing so as to guide outside air to the drying section or its vicinity.
前記乾燥部と前記外装部との間に仕切られた空間を前記乾燥部近傍に設け、前記仕切られた空間を構成する仕切部材の少なくとも一部が前記通路の少なくとも一部を構成することを特徴とする請求項2に記載の現像装置。A space partitioned between the drying unit and the exterior unit is provided in the vicinity of the drying unit, and at least a part of a partition member constituting the partitioned space forms at least a part of the passage. The developing device according to claim 2, wherein 前記乾燥部と前記外装部との間に断熱材を設けたことを特徴とする請求項1,2または3に記載の現像装置。The developing device according to claim 1, wherein a heat insulating material is provided between the drying unit and the exterior unit. 前記乾燥部内において前記乾燥部の熱源の上方に外気吸引機構を設けたことを特徴とする請求項1乃至4のいずれか1項に記載の現像装置。The developing device according to any one of claims 1 to 4, wherein an outside air suction mechanism is provided in the drying unit above a heat source of the drying unit. 前記乾燥部内において前記熱源から前記外装部に向かう熱を妨げる方向に風を送るファンを設けたことを特徴とする請求項5に記載の現像装置。The developing device according to claim 5, further comprising a fan that blows air in a direction that hinders heat from the heat source toward the exterior unit in the drying unit. 画像情報に基づいて感光材料に露光する露光装置と、請求項1乃至6のいずれか1項に記載の現像装置と、を備えることを特徴とする画像記録装置。An image recording apparatus comprising: an exposure device that exposes a photosensitive material based on image information; and a developing device according to claim 1.
JP2003156576A 2003-06-02 2003-06-02 Developing unit and image recording apparatus Pending JP2004361474A (en)

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