JPS6015661A - Developing mechanism of electrophotographic device - Google Patents
Developing mechanism of electrophotographic deviceInfo
- Publication number
- JPS6015661A JPS6015661A JP12341783A JP12341783A JPS6015661A JP S6015661 A JPS6015661 A JP S6015661A JP 12341783 A JP12341783 A JP 12341783A JP 12341783 A JP12341783 A JP 12341783A JP S6015661 A JPS6015661 A JP S6015661A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- tank
- developing
- pipe
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/101—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
木兄咀は電子写真装置の現像機構に関し、ポンプを用い
ることなく液体現像剤を現像室に送給し得るように工夫
したものである。DETAILED DESCRIPTION OF THE INVENTION Regarding the developing mechanism of an electrophotographic device, Kinen Tsui devised a device that allows liquid developer to be delivered to the developing chamber without using a pump.
電子写真感光材料を長いロールフィルム状とし、所定の
部分にのみ帯電、露光、現像、乾燥、定着により画像を
記録し、この画像をリーダー尋を用いて投影する等して
利用する一方、未記録部分に新うたな記録を追加して行
くマイクロフィルム等として利用することが可能である
。The electrophotographic light-sensitive material is made into a long roll film, and an image is recorded only in a predetermined area by charging, exposing, developing, drying, and fixing, and this image is used by projecting it using a leader, etc., while unrecorded. It can be used as microfilm, etc., on which new song records can be added to sections.
ここで液状トナーを用いた従来技術に係る電子写真装置
を第１図を参照しつつ説明する。同図に示すように１こ
の種の現像ヘッドｌにはマスク２が備えられており、こ
のマスク２はｉ子写真感光材料３の一駒に対応する広さ
の開口部２ａを有するとともに、その開口端２ｂは電子
写真感光材料３に接している。この結果、感光材料３の
一駒分の感光ＷＪ３ ａは開口部２ａに臨んでおり、こ
の開口部２ａを介して液体現像剤４を感光面３ａに付与
することにより所定のＭ像を現像する。かかる現像に引
き続き感光面３８に付着した液体現像剤４の液切り（以
下スクイズと称す）を行なうのであるが、このスクイズ
も同様に前記開口部２ａを介して感光面３ａに、例えば
空気等の気体を付与することにより行なう。そこで、液
体現像剤４及び気体（本例の場合は空気）を開口部２ａ
まで搬送する必要があるが、この搬送は現像液タンク５
に貯留されている液体現像剤４を真空ポンプ６で吸い上
げるとともに、弁７の開放により空気中から空気な同様
に真空ポンプ６で吸い込むようになっている。そして、
現像後の余剰の液体現像剤４及びスクイズ後の空気は前
記現像液タンク５に向けて戻される。即ち、タンク５か
ら現像ヘッド１の内部に至り開口部２ａに連通する流路
８と、大気に開放されている端部から弁７を通り現像ヘ
ッド１の内部に至り、開口部２ａの上流で前記流路８に
合流する流路９とともに開口部２ａから現像ヘッド１の
外部に至り真空ポンプ６を通って現像液タンク５に戻る
流路１０が形成されている。Here, a conventional electrophotographic apparatus using liquid toner will be described with reference to FIG. As shown in the figure, a developing head 1 of this type is equipped with a mask 2, and this mask 2 has an opening 2a having a width corresponding to one frame of the photosensitive material 3. The open end 2b is in contact with the electrophotographic photosensitive material 3. As a result, the photosensitive WJ3a for one frame of the photosensitive material 3 faces the opening 2a, and by applying the liquid developer 4 to the photosensitive surface 3a through the opening 2a, a predetermined M image is developed. . Following this development, the liquid developer 4 adhering to the photosensitive surface 38 is removed (hereinafter referred to as "squeezing"), and this squeeze is also performed by injecting air, for example, onto the photosensitive surface 3a through the opening 2a. This is done by applying gas. Therefore, the liquid developer 4 and gas (air in this example) are introduced into the opening 2a.
It is necessary to transport the developer to the developer tank 5.
The liquid developer 4 stored in the tank is sucked up by the vacuum pump 6, and when the valve 7 is opened, air is sucked in from the air by the vacuum pump 6 as well. and,
Excess liquid developer 4 after development and air after squeezing are returned to the developer tank 5. That is, there is a flow path 8 that extends from the tank 5 to the inside of the developing head 1 and communicates with the opening 2a, and an end that is open to the atmosphere that passes through the valve 7 and reaches the inside of the developing head 1, upstream of the opening 2a. Along with a flow path 9 that merges with the flow path 8, a flow path 10 is formed that extends from the opening 2a to the outside of the developing head 1, passes through the vacuum pump 6, and returns to the developer tank 5.
かくて、この種の電子写真装置の現像ヘッドでは液体現
像剤４の付与による感光面３ａの現像、スクイズの後、
次工程の乾燥、定着工程へと進むのである。Thus, in the developing head of this type of electrophotographic apparatus, after development and squeezing of the photosensitive surface 3a by applying the liquid developer 4,
The next step is drying and fixing.
ところでかかる従来技術では、液体現像剤４を感光面３
ａに付与しているため、付与の程度により感光面３ａに
付着した液体現像剤４の一部が除去されることがあり、
感光面３ａに付着する液体現像剤４の量にムラができて
しまう。However, in this prior art, the liquid developer 4 is applied to the photosensitive surface 3.
Since the liquid developer 4 is applied to the photosensitive surface 3a, a part of the liquid developer 4 attached to the photosensitive surface 3a may be removed depending on the degree of application.
This results in unevenness in the amount of liquid developer 4 that adheres to the photosensitive surface 3a.
また、高価な真空ポンプ６を用いているため高価格であ
った。In addition, since an expensive vacuum pump 6 is used, the cost is high.
本発明は、上記従来技術に鑑み、ポンプを用いることな
く且つムラなく液体現像剤を電子写真感光材料の感光面
に付着させることのできる電子写真装置の現像機構を提
供することを目的とする。かかる目的を達成する本発明
の構成は、現像室が形成された現像ヘッドと、液体現像
剤が満たされるとともに現像ヘッドに対し液体現像剤の
液面が昇降動せしめられる機構を有する現像液タンクと
、現像室の下端と現像液タンクとを連通ずる連通管と、
を有することを特徴とする。SUMMARY OF THE INVENTION In view of the above-mentioned prior art, it is an object of the present invention to provide a developing mechanism for an electrophotographic apparatus that can evenly apply a liquid developer to the photosensitive surface of an electrophotographic light-sensitive material without using a pump. The configuration of the present invention that achieves this object includes a developing head in which a developing chamber is formed, and a developer tank that is filled with liquid developer and has a mechanism that moves the liquid developer level up and down with respect to the developing head. , a communication pipe that communicates the lower end of the developing chamber and the developer tank;
It is characterized by having the following.
以下本発明の実施例を図面に基づき詳細に説明する。Embodiments of the present invention will be described in detail below based on the drawings.
第２図は本発明の第１の実施例を示す。同図に示すよう
に、液体現像剤２０が満たされた現像液タンク２１は、
図示しない機構により昇降動されるようになっている。FIG. 2 shows a first embodiment of the invention. As shown in the figure, a developer tank 21 filled with liquid developer 20 is
It is moved up and down by a mechanism not shown.
現像ヘッド２２に形成された現像室２３の下端と、前記
現像液タンク２１の下端とは、可撓性を有する連通管２
４で連通されている。また、現像室２３の上端はパイプ
２５を介してオーバーフロータンク２６に連通しており
、このオーバーフロータンク２６は可撓性を有するパイ
プ２７を介して現像液タンク２１の上部空間に連通して
いる。更に現像ヘッド２２には、スクイズ用の空気を導
入するパイプ２８及び導入された空気を排出するパイプ
２９が連結されており、パイプ２９にはエアー抜け３０
が備えられている。そして現像ヘッド２２には、感光面
３１！Ｉが現像室２３に臨むように電子写真感光材料３
１がセットされている。The lower end of the developing chamber 23 formed in the developing head 22 and the lower end of the developer tank 21 are connected to a flexible communication pipe 2.
4 is connected. Further, the upper end of the developing chamber 23 communicates with an overflow tank 26 via a pipe 25, and this overflow tank 26 communicates with the upper space of the developer tank 21 via a flexible pipe 27. Furthermore, a pipe 28 for introducing squeeze air and a pipe 29 for discharging the introduced air are connected to the developing head 22, and the pipe 29 has an air vent 30.
is provided. The developing head 22 has a photosensitive surface 31! Place the electrophotographic photosensitive material 3 so that I faces the developing chamber 23.
1 is set.
かかる実施例により現像処理をするＫは、まず現像液タ
ンク２１を上昇させていく。そウスると、現像液タンク
２１内の液体現像剤２０が連通管２４を通って現像室２
３内に入り、感光面３１ａＫ接触する。現像液タンク２
１が上昇して行き、第１図に点線で示す如く、液体現像
剤２０の液面が現像室２３の上端位置より高くなると、
現像室２３内に入った余分な液体現像剤２０はパイプ２
５を通ってオーバーフロータンク２６内に流入する。現
像室２３内に液体現像剤２０が満たされて感光Ｗ３３１
ａの全面に液体現像剤２０が接触した後、現像液タン
ク２１を下降させる。そうすると、現像室２３内の液体
現像剤２０及びオーバーフロータンク２６内の液体現像
剤２ｏが現像液タンク２１内に戻ってくる。現像液タン
ク２１が下降し液体現像剤２０の液面がパイプ２９の下
端より下方に位置したところで現像液タンク２１の下降
を停止する。その後、パイプ２Ｂから空気を導入してス
クイズを行う。導入された空気は現像室２３゜パイプ２
９及びエアー抜け３ｏを通って排出される。K, who performs the development process according to this embodiment, first raises the developer tank 21. When this happens, the liquid developer 20 in the developer tank 21 passes through the communication pipe 24 and enters the developing chamber 2.
3 and comes into contact with the photosensitive surface 31aK. Developer tank 2
1 rises, and when the liquid level of the liquid developer 20 becomes higher than the upper end position of the developing chamber 23, as shown by the dotted line in FIG.
Excess liquid developer 20 that has entered the developing chamber 23 is removed from the pipe 2.
5 into the overflow tank 26. The developing chamber 23 is filled with the liquid developer 20 and exposed to light W331.
After the liquid developer 20 comes into contact with the entire surface of a, the developer tank 21 is lowered. Then, the liquid developer 20 in the developing chamber 23 and the liquid developer 2o in the overflow tank 26 return to the developer tank 21. When the developer tank 21 descends and the level of the liquid developer 20 is located below the lower end of the pipe 29, the developer tank 21 stops descending. After that, air is introduced from the pipe 2B to perform squeezing. The introduced air flows into the developing chamber 23° pipe 2.
9 and is discharged through the air vent 3o.
かかる本実施例では、現像室２３内に徐々に液体現像剤
２０が満たされるため、感光面３１ａに液体現像剤２０
が衝突することがなく、この結果感光面３１ａにムラな
く液体現像剤２ｏが付着する。In this embodiment, since the developing chamber 23 is gradually filled with the liquid developer 20, the liquid developer 20 is deposited on the photosensitive surface 31a.
As a result, the liquid developer 2o evenly adheres to the photosensitive surface 31a.
なお第２図に示す実施例では、現像液タンク２１を昇降
動させることにより液体現像剤２゜の液面を昇降動させ
たが、第３図に示す如く、現像液タンク２１に可撓性を
もたせて外部より押圧して液体現、像剤２０の液面を上
下させるようにしてもよく、更に第４図に示す如く、現
像液タンク２１内に物体５１を出入させることにより液
体現像剤２０の液面を上下させるようにしてもよい。In the embodiment shown in FIG. 2, the liquid level of the liquid developer 2° is raised and lowered by moving the developer tank 21 up and down, but as shown in FIG. The level of the liquid developer 20 may be raised or lowered by applying pressure from the outside.Furthermore, as shown in FIG. The liquid level of 20 may be raised or lowered.
第５図は本発明の第２の実施例を示す。同図において２
０は液体現像剤、２１は現像液タンク、２２は現像ヘッ
ド、２３は現像室、２４は連通管、２８．２９はパイプ
、３ｏはエアー抜けであり、これらは第２図に示す第１
の実施例と同様である。更に本実施例では図示しない機
構により昇降動せしめられる副現像液タンク２１ａが備
えられており、この中には現像するのに過不足のない量
の液体現像剤２０が入るようになっている。そして副現
像液タンク２１ａと現像液タンク２１とは、弁３２が介
設された可撓性を有するパイプ３３で連通されている。FIG. 5 shows a second embodiment of the invention. In the same figure, 2
0 is a liquid developer, 21 is a developer tank, 22 is a developing head, 23 is a developing chamber, 24 is a communication pipe, 28, 29 is a pipe, and 3o is an air vent.
This is similar to the embodiment. Further, in this embodiment, there is provided an auxiliary developer tank 21a which can be moved up and down by a mechanism not shown in the drawings, and is configured to hold the liquid developer 20 in just the right amount for development. The sub-developer tank 21a and the developer tank 21 are communicated with each other through a flexible pipe 33 in which a valve 32 is interposed.
また現像室２３と現像液タンク２１とはパイプ３４によ
り連通している。Further, the developing chamber 23 and the developer tank 21 are communicated through a pipe 34.
かかる本実施例では、まず現像液タンク２１と副現像液
タンク２１ａとを、図中実線で示すように、同レベルと
しておき、更に弁３２を開いて副現像液タンク２１ａ内
に液体現像剤２０を流入させる、副現像液タンク２１ａ
内の液体現像剤２０の量は、前述した如く、感光面３１
ａを現像するのに最適な量となっている。その抜弁３２
を閉じ、副現像液タンク２１ａを上昇させてこの中にあ
る液体現像剤２０を現像室２３内に流入させる（このと
きの状態を図中点線で示す）。現像室２３からオーバー
フローした液はパイプ３４を通って現像液タンク２１に
流入する。こうして液体現像剤２０が感光面３１ａの全
面に接触した後、副現像液タンク２１ａを下降させて現
像室２３内の液体現像剤２０を排出する。次にスクイズ
を行う。In this embodiment, the developer tank 21 and the sub-developer tank 21a are first kept at the same level as shown by the solid line in the figure, and then the valve 32 is opened to fill the sub-developer tank 21a with the liquid developer 20. The sub-developer tank 21a into which the
As described above, the amount of liquid developer 20 in the photosensitive surface 31 is
This is the optimum amount for developing a. That removal valve 32
is closed, and the sub-developer tank 21a is raised to cause the liquid developer 20 therein to flow into the developing chamber 23 (this state is shown by the dotted line in the figure). The liquid overflowing from the developing chamber 23 flows into the developer tank 21 through a pipe 34. After the liquid developer 20 comes into contact with the entire surface of the photosensitive surface 31a, the sub-developer tank 21a is lowered to discharge the liquid developer 20 in the developing chamber 23. Next, do the squeeze.
この実施例では現像するのに必要な量の液体現像剤２０
を副現像液タンク２１ａ内に入れて、この必要な量のみ
を用いて現像をしているので無駄がなく、また副現像液
タンク２１ａを昇降動させる労力も小さくてよい。なお
パイプ３３を細めにしておけば弁３２は必ずしも必要は
ない。つまり、パイプ３３か細ければ副現像液タンク２
１ａを上昇させた際には、パイプ３３はオリフィスと同
等な効果を生じ、副現像液タンク２１ａ内の液体現像剤
２０はほとんど連通管２４を通って現像室２３内に流入
するのである。In this embodiment, the amount of liquid developer 20 necessary for development is
Since the developer is placed in the sub-developer tank 21a and only the necessary amount is used for development, there is no waste, and the effort required to move the sub-developer tank 21a up and down is also small. Note that if the pipe 33 is made narrow, the valve 32 is not necessarily necessary. In other words, if the pipe 33 is thin, the sub-developer tank 2
When 1a is raised, the pipe 33 produces an effect similar to that of an orifice, and most of the liquid developer 20 in the sub-developer tank 21a flows into the developing chamber 23 through the communication pipe 24.
以上実施例とともに具体的に説明したように本発明によ
れば、ポンプを用いないためコストの低減が図れるとと
もに、液体現像剤が徐々に感光面に接触するため、この
感光面にムラなく液体現像剤を付着させることができ画
質が向上する。As specifically explained above in conjunction with the embodiments, according to the present invention, costs can be reduced because no pump is used, and since the liquid developer gradually comes into contact with the photosensitive surface, the liquid developer is applied evenly to the photosensitive surface. The image quality can be improved by attaching the agent.
第１図は従来技術を示す構成図、第２図は本発明の第１
の実施例を示す構成図、第３図及び第４図は現像液タン
ク２１の変形例を示す構成図、第５図は本発明の第２の
実施例を示す構成図である。
図 面 中
２０は液体現像剤、
２１は現像液タンク、
２１ａは副現像液タンク、
２２は現像ヘッド、
２３は現像室、
２４は連通管、
３１は電子写真感光材料、
３１ａは感光面である。
特許出願 人 富士写真フィルム株式会社代理人 弁理
士 光石士部（他１名）
手続補正書
昭和５８年９月２６１」
特許庁長官殿
１、 リｌイ′Ｉの表示
昭和５８年 特 許 願第１２３４１７５づ昭和 年
審 １′り第 ５じ
２発明の名称
を子写真装置の現像機構
ａｌｌｌｉ正をする者
“Ｉ＋（’ｌとの関係 特許出願人
神奈用県雨足柄市中沼２１０着地
（５２０）ｔｉ士写冥フィルム株式会社４、代理人
郵便番号１０７
同 所
６、補正の対象
明細書の「発明の詳細な説明」の欄
７、補正の内容
（υ 明細Ｖ第１頁第１３行目に記載した「液体現像剤
」の後に「（Ｐ、縁性液体中に微不着色荷電粒子（トナ
ー）が懸濁されたもの）」を挿入する。。
（２） 明細書第３真下から３行目に記載した「液体現
像剤４」の後に「中のトナー」を挿入する。
（３） 明細Ｖ第３頁末行に記載した「液体現像剤４」
、明細書第４頁４行目に記載した「液体現像剤」、明細
書第６真下から２行目に記載した「液体現像剤２０」及
び明１１１１１曹第９頁１５行目に記載した「液体現像
剤」を夫々「トナー」と補正する。Figure 1 is a configuration diagram showing the prior art, and Figure 2 is the first diagram of the present invention.
FIGS. 3 and 4 are block diagrams showing a modification of the developer tank 21, and FIG. 5 is a block diagram showing a second embodiment of the present invention. In the figure, 20 is a liquid developer, 21 is a developer tank, 21a is a sub-developer tank, 22 is a developing head, 23 is a developing chamber, 24 is a communicating tube, 31 is an electrophotographic photosensitive material, and 31a is a photosensitive surface. . Patent Applicant Fuji Photo Film Co., Ltd. Agent Patent Attorney Shibe Mitsuishi (and 1 other person) Procedural Amendment September 1981 261 Dear Commissioner of the Japan Patent Office 1, Lily'I Indication 1988 Patent Application No. 1234175 Showa year
Trial 1' Relation of the name of the 2nd invention to the person who corrects all the developing mechanisms of the child photographic device "I+('l") Patent applicant 210 Nakanuma, Amashigara City, Kanagawa Prefecture (520) ti Shishamei Film Co., Ltd. 4, agent postal code 107 Same office 6, “Detailed description of the invention” column 7 of the specification subject to amendment, content of the amendment (υ “Liquid After "developer", insert "(P, fine non-colored charged particles (toner) suspended in marginal liquid)". (2) Written in the third line from the bottom of the third specification. Insert "toner inside" after "liquid developer 4". (3) "Liquid developer 4" written on the last line of page 3 of Specification V
, "Liquid developer" described on page 4, line 4 of the specification, "Liquid developer 20" described on line 2 from the bottom of page 6 of the specification, and "Liquid developer 20" described on page 9, line 15 of Mei 11111 Ca. "liquid developer" is corrected as "toner" respectively.
Claims (1)
れるとともに前記現像ヘッドに対し液体現像剤の液面が
昇降動せしめられる機構を有する現像液タンクと、前記
現像室の下端と前記現像液タンクとを連通する連通管と
、を有することを特徴とする電子写真装置の現像機構。a developing head in which a developing chamber is formed; a developer tank that is filled with liquid developer and has a mechanism for raising and lowering the level of the liquid developer with respect to the developing head; a lower end of the developing chamber and the developing solution; A developing mechanism for an electrophotographic apparatus, comprising: a communication pipe communicating with a tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12341783A JPS6015661A (en) | 1983-07-08 | 1983-07-08 | Developing mechanism of electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12341783A JPS6015661A (en) | 1983-07-08 | 1983-07-08 | Developing mechanism of electrophotographic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6015661A true JPS6015661A (en) | 1985-01-26 |
Family
ID=14860037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12341783A Pending JPS6015661A (en) | 1983-07-08 | 1983-07-08 | Developing mechanism of electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2616927A1 (en) * | 1987-06-22 | 1988-12-23 | Regma | Device for developing a latent electrostatic image on a zone of a substrate by means of a developing liquid and method for its implementation |
-
1983
- 1983-07-08 JP JP12341783A patent/JPS6015661A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2616927A1 (en) * | 1987-06-22 | 1988-12-23 | Regma | Device for developing a latent electrostatic image on a zone of a substrate by means of a developing liquid and method for its implementation |
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