JPS6318191B2 - - Google Patents
Info
- Publication number
- JPS6318191B2 JPS6318191B2 JP748980A JP748980A JPS6318191B2 JP S6318191 B2 JPS6318191 B2 JP S6318191B2 JP 748980 A JP748980 A JP 748980A JP 748980 A JP748980 A JP 748980A JP S6318191 B2 JPS6318191 B2 JP S6318191B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- heating roller
- transfer paper
- air
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- 239000002904 solvent Substances 0.000 description 14
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は、湿式電子複写機の定着乾燥装置、よ
り詳しくはシートに付着した溶剤を効率よく加熱
蒸発させる手段を備えた定着乾燥装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing/drying device for a wet-type electronic copying machine, and more particularly to a fixing/drying device provided with means for efficiently heating and evaporating a solvent attached to a sheet.
湿式電子複写機は、帯電、露光工程を経て感光
体上に形成した潜像を現像液によつて現像する方
式を採るものであるため、転写時にシートが吸収
する現像液の量は、A4サイズ１枚当り数10mg乃
至数100mgに達し、通常の加熱源を備えた定着乾
燥装置によつては十分に現像液を除去することが
できず、また、この装置内で生じた石油類からな
る溶剤蒸気が機外に漏洩して人体に悪影響を及ぼ
す問題を抱えている。 Wet-type electronic copying machines use a developer to develop the latent image formed on the photoreceptor through a charging and exposure process, so the amount of developer absorbed by the sheet during transfer is limited to A4 size paper. The amount of developing solution reaches several tens to hundreds of mg per sheet, and it is not possible to sufficiently remove the developer using a fixing and drying device equipped with a normal heat source. There is a problem with steam leaking outside the aircraft and having a negative impact on the human body.
このような問題を解消するために、溶剤蒸気収
集室で密閉した加熱板上にシートを面接触させつ
つ搬送加熱し、シートから発生する溶剤蒸気を空
気とともに吸引除去するようにした装置が特開昭
48−83838号公報に提案されている。しかしなが
ら、この装置では、シート裏面から加熱するた
め、溶剤を蒸発させるのに長時間を必要とし、十
分な乾燥を行うには加熱板を長くしなければなら
なくなつて定着乾燥装置が大型化するばかりでな
く、電力消費も多くなるといつた不都合を有す
る。 In order to solve this problem, a device has been patented that is designed to convey and heat the sheet while bringing it into surface contact with a sealed heating plate in a solvent vapor collection chamber, and to suction and remove the solvent vapor generated from the sheet along with the air. Akira
It is proposed in Publication No. 48-83838. However, since this device heats the sheet from the back side, it takes a long time to evaporate the solvent, and the heating plate must be made longer to achieve sufficient drying, making the fixing and drying device larger. Not only that, but it also has the disadvantage of increasing power consumption.
本発明は、上述した従来装置が抱える不都合を
解決すべく、シート上面から直接加熱して溶剤を
短時間に蒸発させるとともに、加熱空気をシート
の進行方向と直交する方向から当てて蒸発速度を
さらに高めることにより、効率的なシートの乾燥
が行える小型の装置を提供するもので、以下に本
発明の詳細を図面に基づいて説明する。 In order to solve the above-mentioned disadvantages of the conventional apparatus, the present invention evaporates the solvent in a short time by heating directly from the top surface of the sheet, and further increases the evaporation rate by applying heated air from a direction perpendicular to the direction in which the sheet travels. The present invention will be described in detail below with reference to the drawings.
第１図乃至第３図は、本発明の一実施例をなす
装置をそれぞれ側面、上面、前面から画いたもの
であり、１は内部にヒータ１ａを持つ加熱ロー
ラ、２はこの加熱ローラ１に転写紙Ｐを密着させ
るための密着ベルト、３はこのベルト２を駆動す
るプーリ、４は搬送ローラ、５は一対のシールロ
ーラを示し、これらは転写紙Ｐの搬送経路に沿つ
て配設された定着乾燥装置の要部をなしている。
しかして、本発明の特徴をなす機構は、この定着
乾燥装置を被覆するハウジング６内に設けた加熱
空気の流路にあり、これをさらに詳細に説明する
と、このハウジング６の入口側通紙ガイド７の上
方には、シヤツタ８によつて開度が自由に調節で
きる空気取入口６ａが設けられ、ここから取入れ
た外気を加熱ローラ１の周面に沿つて導びくよう
構成されている。９は加熱ローラ１の排紙側とシ
ールローラ５間に橋架された通紙ガイド、１０は
溶剤蒸気を含んだ気体を吸引するために通紙ガイ
ド９上に配設された吸引室で、ハウジング６の天
板６ｂと両側壁６ｃ，６ｃとの間には間隙が形成
されて加熱空気の流路１１，１２をなしている。
なお図中符号１０ａは吸引室１０の底面に設けら
れた吸引口、１４は吸引室から図示しない溶剤蒸
気の凝縮部に到る管路内に設けられた吸引フア
ン、６ｄはハウジング６の両側壁６ｃに張設され
たシール材、１０ｅはシールローラ５とハウジン
グ６との間隙を埋めるシール材をそれぞれ示して
いる。 1 to 3 are side, top, and front views of a device constituting an embodiment of the present invention, respectively, with reference numeral 1 showing a heating roller having a heater 1a inside, and 2 showing the heating roller 1. A contact belt for bringing the transfer paper P into close contact; 3 is a pulley that drives this belt 2; 4 is a conveyance roller; and 5 is a pair of seal rollers, which are arranged along the conveyance path of the transfer paper P. It forms the main part of the fixing and drying device.
The feature of the present invention is the heated air flow path provided in the housing 6 that covers the fixing/drying device. An air intake port 6a whose opening degree can be freely adjusted by a shutter 8 is provided above the shutter 7, and is configured to guide outside air taken in from the air intake port 6a along the circumferential surface of the heating roller 1. Reference numeral 9 denotes a paper passing guide bridged between the paper discharge side of the heating roller 1 and the sealing roller 5, and 10 indicates a suction chamber disposed on the paper passing guide 9 to suck gas containing solvent vapor. A gap is formed between the top plate 6b of No. 6 and the side walls 6c, 6c, forming flow paths 11, 12 for heated air.
In the figure, reference numeral 10a is a suction port provided on the bottom of the suction chamber 10, 14 is a suction fan provided in a pipe leading from the suction chamber to a solvent vapor condensation section (not shown), and 6d is a side wall of the housing 6. The sealing material 6c is stretched, and the sealing material 10e fills the gap between the seal roller 5 and the housing 6.
上述した実施例において、転写工程を経た転写
紙Ｐは、背面から密着ベルト２に押圧されつつ、
現像液付着面を直接加熱ローラ１に接触させ、十
分な加熱作用を受けて通紙ガイド９上に排出され
る。他方、吸引フアン１４の吸引作用によつて負
圧状態となつているハウジング６内には、空気取
入口６ａより外気が侵入し、その外気は加熱ロー
ラ１に沿つて流れる間に加熱されてハウジング６
の天板６ｂと吸引室１０との間に形成された流路
１１内に入り込む。さらに、この空気は吸引作用
の影響を受けてハウジング６の両側壁６ｃと吸引
室１０との間に形成された流路１２に沿つて流れ
下り、通紙ガイド９上に達して転写紙Ｐの進行方
向と直交する方向から転写紙Ｐ上に吹き込む。こ
の結果、転写紙Ｐはさらに加熱され、また、転写
紙Ｐの移動方向と異なる方向からの吹き込みによ
つて、転写紙Ｐ上で蒸発しかかつている溶剤は強
制的に運び去られ、短い蒸発区間にもかかわら
ず、転写紙Ｐの乾燥作用は効果的に達成される。 In the embodiment described above, the transfer paper P that has undergone the transfer process is pressed against the contact belt 2 from the back side, while
The surface to which the developing solution is applied is brought into direct contact with the heating roller 1, and the sheet is discharged onto the sheet passing guide 9 after being sufficiently heated. On the other hand, outside air enters the housing 6, which is in a negative pressure state due to the suction action of the suction fan 14, through the air intake port 6a, and as it flows along the heating roller 1, it is heated and the housing is heated. 6
into the flow path 11 formed between the top plate 6b and the suction chamber 10. Furthermore, this air flows down along the flow path 12 formed between the both side walls 6c of the housing 6 and the suction chamber 10 under the influence of the suction action, reaches the paper passing guide 9, and the transfer paper P is Blow onto the transfer paper P from a direction perpendicular to the direction of travel. As a result, the transfer paper P is further heated, and the solvent that is about to evaporate on the transfer paper P is forcibly carried away by the blowing from a direction different from the moving direction of the transfer paper P, and the solvent that has almost evaporated on the transfer paper P is forcibly carried away, resulting in a short evaporation period. Nevertheless, the drying effect of the transfer paper P is effectively achieved.
加熱ローラの径35mm、加熱温度150〜160℃、密
着ベルトの接触長さ７mm、蒸発区間40mmの40cpm
複合機を用い、これに現像液付着量90mgのA4サ
イズ転写紙を通して実験を行つたところ、次の結
果を得た。すなわち、転写紙と同一方向から加熱
空気を当てた場合、その残留溶剤量はもとの20〜
30％であつたのに対し、転写紙の移動方向と直角
な方向から加熱空気を吹き込んだ場合には、残留
溶剤量はもとの２％以下となり、捕集率は96％以
上に達した。なお、この際の加熱空気中の溶剤蒸
気濃度は2300〜2900ppmであつた。 Heating roller diameter 35mm, heating temperature 150 to 160℃, close contact belt contact length 7mm, evaporation zone 40mm, 40cpm
When we conducted an experiment using a multifunction device and passed A4 size transfer paper with a developer adhesion of 90mg through it, we obtained the following results. In other words, if heated air is applied from the same direction as the transfer paper, the amount of residual solvent will decrease from the original 20 to
In contrast, when heated air was blown in from a direction perpendicular to the direction of transfer paper movement, the amount of residual solvent decreased to less than 2% of the original amount, and the collection rate reached over 96%. . Note that the concentration of solvent vapor in the heated air at this time was 2300 to 2900 ppm.
第４図は本発明の他の実施例を示すものであつ
て、加熱空気を転写紙Ｐの両側から中央に向けて
吹き込ませるほかに、吸引室１０の中央部にも加
熱空気の流路１５を形成し、中央から左右に向か
う流れを作ることによつて、転写紙Ｐの全面に等
しく加熱空気を当てるようにしたものである。 FIG. 4 shows another embodiment of the present invention, in which heated air is blown from both sides of the transfer paper P toward the center, and a heated air flow path 15 is also provided in the center of the suction chamber 10. By forming a flow from the center to the left and right, heated air is applied equally to the entire surface of the transfer paper P.
なお、上述した各装置の空気流路に適宜の案内
フインを設けて、加熱空気の吹き出し方向を転写
紙移動方向と直角をなすよう強制的に誘導させれ
ば、溶剤蒸気の払拭作用はさらに効果的に行え
る。 Furthermore, if appropriate guide fins are provided in the air flow paths of each of the above-mentioned devices to forcibly guide the blowing direction of the heated air to be perpendicular to the transfer paper moving direction, the solvent vapor wiping effect will be even more effective. It can be done accurately.
以上述べたように本発明によれば、現像液の付
着した面を加熱ローラに直接接触させて短時間に
溶剤を蒸発させるとともに、このシート面をさら
に加熱気体によつて加熱しながら溶剤蒸気を吹き
払うようにしているから、シートの乾燥はきわめ
て効果的に行える。しかも、加熱気体の吹き込む
方向をシートの搬送方向とほぼ直角方向にし、シ
ート面上における加熱気体の相対的速度を倍加さ
せているから、蒸発区間を特に長くしなくとも溶
剤蒸気の払拭作用は確実に行われ、装置の小型化
と定着乾燥に要する電力の節減が可能となる。 As described above, according to the present invention, the surface to which the developer is adhered is brought into direct contact with the heating roller to evaporate the solvent in a short period of time, and the sheet surface is further heated with heated gas to evaporate the solvent vapor. By blowing it off, the sheet can be dried extremely effectively. Moreover, since the direction in which the heated gas is blown is almost perpendicular to the sheet conveyance direction and the relative velocity of the heated gas on the sheet surface is doubled, the solvent vapor wiping effect is ensured even without making the evaporation section particularly long. This makes it possible to downsize the device and reduce the power required for fixing and drying.
第１図は本発明の一実施例を示す装置の側面
図、第２図、第３図は同上装置の上面図と正面
図、第４図は本発明の他の実施例を示す装置の側
面図である。
１……加熱ローラ、２……密着ベルト、４……
搬送ローラ、５……シールローラ、６……ハウジ
ング、６ａ……空気取入口、１０……吸引室、１
１，１２，１５……流路、１４……吸引フアン。
FIG. 1 is a side view of the device showing one embodiment of the present invention, FIGS. 2 and 3 are top and front views of the same device, and FIG. 4 is a side view of the device showing another embodiment of the invention. It is a diagram. 1... Heating roller, 2... Close contact belt, 4...
Conveyance roller, 5...Seal roller, 6...Housing, 6a...Air intake port, 10...Suction chamber, 1
1, 12, 15...channel, 14...suction fan.
Claims (1)
熱ローラに接触させて定着、乾燥を行う装置にお
いて、該装置を被覆部材により被覆するととも
に、該被覆部材内に空気取入れ口と、該取入れ口
より導入した気体を上記加熱ローラに沿わせて加
熱する流路と、該加熱された気体を上記加熱ロー
ラの排紙側においてシートの搬送方向とほぼ直角
をなす方向にシート面上に吹き込ませる流路と、
該吹き込んだ気体を吸引排出する吸引部材を設け
たことを特徴とする湿式電子複写機における定着
乾燥装置。1. In a device that performs fixing and drying by bringing the developer-adhering surface of a sheet into contact with a heating roller using a contact belt, the device is covered with a covering member, and an air intake port is provided in the covering member, and an air is introduced through the intake port. a flow path for heating the heated gas along the heating roller; and a flow path for blowing the heated gas onto the sheet surface in a direction substantially perpendicular to the conveying direction of the sheet on the paper discharge side of the heating roller. ,
A fixing/drying device for a wet-type electronic copying machine, comprising a suction member for suctioning and discharging the blown gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP748980A JPS56104364A (en) | 1980-01-24 | 1980-01-24 | Fixing and drying device in wet type electrophotographic copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP748980A JPS56104364A (en) | 1980-01-24 | 1980-01-24 | Fixing and drying device in wet type electrophotographic copier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56104364A JPS56104364A (en) | 1981-08-20 |
| JPS6318191B2 true JPS6318191B2 (en) | 1988-04-18 |
Family
ID=11667170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP748980A Granted JPS56104364A (en) | 1980-01-24 | 1980-01-24 | Fixing and drying device in wet type electrophotographic copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56104364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553694U (en) * | 1991-12-20 | 1993-07-20 | 株式会社学習研究社 | Jump toy |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4639405A (en) * | 1985-09-30 | 1987-01-27 | Eastman Kodak Company | Method and apparatus for fixing toner images |
| WO1989012258A2 (en) * | 1988-06-06 | 1989-12-14 | Spectrum Sciences B.V. | Method for fusing developed image |
| US5262829A (en) * | 1988-06-06 | 1993-11-16 | Spectrum Sciences, B.V. | Composition of matter useful for fusing of developed images and method and apparatus using same |
| KR100343178B1 (en) * | 1998-12-28 | 2002-09-18 | 삼성전자 주식회사 | Combining apparatus of backplate for dry unit of wet electrographic printer |
| JP2006058646A (en) * | 2004-08-20 | 2006-03-02 | Canon Inc | Image forming device |
-
1980
- 1980-01-24 JP JP748980A patent/JPS56104364A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553694U (en) * | 1991-12-20 | 1993-07-20 | 株式会社学習研究社 | Jump toy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56104364A (en) | 1981-08-20 |
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