JP2878093B2 - Photosensitive drum coating tank - Google Patents
Photosensitive drum coating tankInfo
- Publication number
- JP2878093B2 JP2878093B2 JP5298802A JP29880293A JP2878093B2 JP 2878093 B2 JP2878093 B2 JP 2878093B2 JP 5298802 A JP5298802 A JP 5298802A JP 29880293 A JP29880293 A JP 29880293A JP 2878093 B2 JP2878093 B2 JP 2878093B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- tank
- photosensitive drum
- concentration
- viscosity
- 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 - Fee Related
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は感光ドラム塗布タンクに
関し、特に電子写真方式を利用したプリンタ、複写機お
よびファクシミリ等における感光ドラム塗布タンクに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive drum coating tank, and more particularly to a photosensitive drum coating tank in a printer, a copying machine, a facsimile, etc., which uses an electrophotographic system.
【０００２】[0002]
【従来の技術】従来、この種の感光ドラム塗布タンク
は、例えば特開平４−１３６９４６号公報、特開平３−
１８１９４９号公報、特開平３−５３２５６号公報およ
び特開平２−１４０７５２号公報に示されるように、図
３に示すような構成になっている。すなわち、感光ドラ
ムを塗布することにより、塗布タンク１１からあふれた
塗布液１３は外槽タンク１２に集まり、循環ポンプ１４
および濾過フィルタ１５を経由して再び塗布タンク１１
に戻るよう、ステンレス配管１６にて液もれが生じない
ように組まれている。また、塗布タンク１１および外槽
タンク１２上には、感光ドラム塗布時の除風および溶剤
雰囲気保持のためのフード１７を有する。また、この上
には感光ドラム塗布時に開放する蓋１８を有している。
なお、特に塗布液１３の濃度および粘度を調整するため
の機能は有していない。2. Description of the Related Art Conventionally, this type of photosensitive drum coating tank is disclosed in, for example, JP-A-4-136946 and JP-A-3-13646.
As shown in JP-A-181949, JP-A-3-53256 and JP-A-2-140752, the configuration is as shown in FIG. That is, by applying the photosensitive drum, the application liquid 13 overflowing from the application tank 11 collects in the outer tank 12 and the circulation pump 14
And the coating tank 11 via the filtration filter 15 again.
The stainless steel pipe 16 is designed to prevent liquid leakage. Further, a hood 17 is provided on the coating tank 11 and the outer tank 12 for removing air and maintaining a solvent atmosphere when coating the photosensitive drum. In addition, a lid 18 is opened on the photosensitive drum when the photosensitive drum is applied.
In particular, it does not have a function for adjusting the concentration and the viscosity of the coating liquid 13.
【０００３】[0003]
【発明が解決しようとする課題】この従来の感光ドラム
塗布タンクは、塗布時にはタンクの上部が開放される構
造となっているため、塗布液からの溶剤の揮発による濃
度および粘度の上昇を抑えることが困難である。また、
塗布液にこの揮発した分の溶剤を補充する機能を有して
いないため、塗布液の濃度および粘度を一定に調整する
ことができず、感光ドラムの塗膜の膜厚が安定しない。Since the conventional photosensitive drum coating tank has a structure in which the upper part of the tank is opened at the time of coating, it is necessary to suppress an increase in concentration and viscosity due to evaporation of the solvent from the coating liquid. Is difficult. Also,
Since the coating liquid does not have a function of replenishing the solvent of the volatilized amount, the concentration and viscosity of the coating liquid cannot be adjusted to a constant value, and the thickness of the coating film on the photosensitive drum is not stable.
【０００４】[0004]
【課題を解決するための手段】本発明の感光ドラム塗布
タンクは、塗布液の濃度および粘度が一定に保たれるよ
うに、前記塗布液を貯蔵する塗布タンクの周囲に隣接
し、前記塗布タンクに感光ドラムを入れることにより前
記感光ドラムを塗布する際にあふれ出る前記塗布液を直
接蓄える外槽タンク内の前記塗布液に溶剤を補給する補
給手段を備え、補給手段は、前記外槽タンクと前記塗布
タンクを結ぶ配管の途中に設けられた濾過フィルタを通
過した位置に設置する濃度計および粘度計によって前記
塗布液の前記濃度および前記粘度を測定しつつ前記外槽
タンクに前記溶剤を補給する手段であることを特徴とす
る。SUMMARY OF THE INVENTION A photosensitive drum coating of the present invention.
The tank keeps the concentration and viscosity of the coating solution constant.
Thus, around the coating tank storing the coating liquid,adjacent
Then, by putting a photosensitive drum in the coating tank,
The coating liquid that overflows when applying the photosensitive drumstraight
ContactA supplement to supply the solvent to the coating solution in the outer tank
Equipped with feeding meansThe replenishing means is provided between the outer tank and the coating
Pass the filtration filter provided in the middle of the pipe connecting the tanks.
By a viscometer and a densitometer
The outer tank while measuring the concentration and the viscosity of the coating solution;
Means for replenishing the solvent to the tank.
To.
【０００５】また、本発明の感光ドラム塗布タンクは、
前記補給手段は、配管の途中に設置する濃度計および粘
度計によって前記塗布液の前記濃度および前記粘度を測
定しつつ前記外槽タンクに前記溶剤を補給する手段であ
ることを特徴とする。[0005] The photosensitive drum coating tank of the present invention comprises:
The replenishing means includes a concentration meter and a viscometer installed in the middle of the pipe.
Characterized in that the degree meter is a means for replenishing the solvent to the outer tub tank while measuring the concentration and the viscosity of the coating coating solution.
【０００６】[0006]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明の一実施例を示す正面図である。図１
を参照すると、コントローラ１によって制御されている
送液ポンプ２は、一定時間間隔で溶剤タンク３内の溶剤
４をテフロンチューブ５を介して外槽タンク１２内に送
液する。Next, the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention. FIG.
Referring to, the liquid sending pump 2 controlled by the controller 1 sends the solvent 4 in the solvent tank 3 into the outer tank 12 via the Teflon tube 5 at regular time intervals.
【０００７】次に、図１の塗布タンクの動作について説
明する。感光ドラム塗布開始後に電源を入れてコントロ
ーラ１を起動させることにより、あらかじめ設定してお
いた一定時間間隔でスイッチがオン・オフされ、圧縮空
気がエアーチューブ６を通じて送液ポンプ２へ伝わる。
送液される溶剤タンク３内の溶剤４は、テフロンチュー
ブ５を通って外槽タンク１２内に補給され、塗布液１３
と混合する。塗布液１３は循環ポンプ１４および濾過フ
ィルタ１５にステンレス配管１６を通じて循環し、塗布
タンク１１内へと吐出される。これらの一連の動作を連
続的に繰り返すことにより、塗布液１３の濃度および粘
度を均一に保つことが可能となる。Next, the operation of the coating tank shown in FIG. 1 will be described. By turning on the power after starting the application of the photosensitive drum and activating the controller 1, the switch is turned on / off at predetermined time intervals, and the compressed air is transmitted to the liquid sending pump 2 through the air tube 6.
The solvent 4 in the solvent tank 3 to be fed is supplied to the outer tank 12 through the Teflon tube 5 and the coating solution 13
Mix with. The coating liquid 13 circulates through a stainless steel pipe 16 to a circulation pump 14 and a filtration filter 15 and is discharged into the coating tank 11. By repeating these series of operations continuously, the concentration and viscosity of the coating liquid 13 can be kept uniform.
【０００８】図２は本発明の別の実施例を示す正面図で
ある。図２では、濾過フィルタ１５と塗布タンク１１と
をつなぐステンレス配管１６の間に塗布液１３の濃度お
よび粘度の測定器７を配し、コントローラ１とのインタ
ーフェースを設けている。塗布液１３の濃度および粘度
は、一定の時間内に塗布される感光ドラムの量や塗布の
タイミング等に影響を受けやすい。そのため、一定時間
間隔で溶剤４を補給することだけでは塗布液１３の濃度
および粘度が必ずしも一定となっているとはいえない。
本実施例では、測定器７にて読み取った塗布液１３の値
をインターフェースを介してコントローラ１に信号を伝
え、あらかじめ設定した濃度・粘度値に比べてその値が
どの位大きいか、小さいかを判断することによって、ス
イッチをオン・オフするタイミングを早めたり、遅らせ
たりする。これにより、送液ポンプ２による溶剤４の補
給ピッチを調節することで、塗布液１３の濃度および粘
度をより一定に保つことが可能となる。FIG. 2 is a front view showing another embodiment of the present invention. In FIG. 2, a measuring device 7 for measuring the concentration and viscosity of the coating liquid 13 is provided between a stainless steel pipe 16 connecting the filtration filter 15 and the coating tank 11, and an interface with the controller 1 is provided. The concentration and viscosity of the coating liquid 13 are easily affected by the amount of the photosensitive drum applied within a certain period of time, the timing of application, and the like. Therefore, simply replenishing the solvent 4 at regular time intervals does not necessarily mean that the concentration and the viscosity of the coating solution 13 are always constant.
In this embodiment, the value of the coating liquid 13 read by the measuring device 7 is transmitted to the controller 1 via the interface to determine how large or small the concentration / viscosity value is compared with a preset concentration / viscosity value. By making the determination, the timing of turning on / off the switch is advanced or delayed. Thus, by adjusting the supply pitch of the solvent 4 by the liquid sending pump 2, the concentration and the viscosity of the coating liquid 13 can be kept more constant.
【０００９】[0009]
【発明の効果】以上説明したように、本発明によれば、
塗布液の濃度および粘度が一定に保たれるように塗布液
に溶剤を補給することにより、塗布液の濃度および粘度
を一定に保ち、感光ドラムの塗膜を常に一定にすること
が可能となる。As described above, according to the present invention,
By supplying the solvent to the coating solution so that the concentration and the viscosity of the coating solution are kept constant, it is possible to keep the concentration and the viscosity of the coating solution constant and to keep the coating film of the photosensitive drum constant at all times. .
【図１】本発明の一実施例の構成を示す正面図である。FIG. 1 is a front view showing the configuration of an embodiment of the present invention.
【図２】本発明の別の実施例の構成を示す正面図であ
る。FIG. 2 is a front view showing the configuration of another embodiment of the present invention.
【図３】従来例の公正を示す正面図である。FIG. 3 is a front view showing fairness of a conventional example.
１ コントローラ ２ 送液ポンプ ３ 溶剤タンク ４ 溶剤 ５ テフロンチューブ ６ エアーチューブ ７ 濃度・粘度測定器 １１ 塗布タンク １２ 外槽タンク １３ 塗布液 １４ 循環ポンプ １５ 濾過フィルタ １６ ステンレス配管 １７ フード １８ 蓋 DESCRIPTION OF SYMBOLS 1 Controller 2 Feed pump 3 Solvent tank 4 Solvent 5 Teflon tube 6 Air tube 7 Concentration / viscosity measuring instrument 11 Coating tank 12 Outer tank 13 Coating liquid 14 Circulation pump 15 Filtration filter 16 Stainless steel pipe 17 Hood 18 Lid
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−90667（ＪＰ，Ａ) 特開 平２−131241（ＪＰ，Ａ) 特開 平２−173753（ＪＰ，Ａ) 特開 平２−207259（ＪＰ，Ａ) 特開 平４−114761（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) G03G 5/05 102 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-59-90667 (JP, A) JP-A-2-131241 (JP, A) JP-A-2-1733753 (JP, A) JP-A-2- 207259 (JP, A) JP-A-4-114761 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) G03G 5/05 102
Claims (1)
るように、前記塗布液を貯蔵する塗布タンクに隣接し、
前記塗布タンクに感光ドラムを入れることにより前記感
光ドラムを塗布する際にあふれ出る前記塗布液を直接蓄
える外槽タンク内の前記塗布液に溶剤を補給する補給手
段を備え、 前記補給手段は、前記外槽タンクと前記塗布タンクを結
ぶ配管の途中に設けられた濾過フィルタを通過した位置
に設置する濃度計および粘度計によって前記塗布液の前
記濃度および前記粘度を測定しつつ前記外槽タンクに前
記溶剤を補給する手段である ことを特徴とする感光ドラ
ム塗布タンク。An adjoining coating tank for storing said coating liquid so that the concentration and viscosity of said coating liquid are kept constant;
E Bei replenishment means for replenishing the solvent to the coating solution in the outer tank tank the coating liquid obtain directly蓄<br/> overflowing in applying the photosensitive drum by placing a photosensitive drum to said coating tank, The replenishing means connects the outer tank and the coating tank.
Through the filtration filter provided in the middle of the pipe
Before the coating liquid by a densitometer and viscometer
While measuring the concentration and the viscosity,
A photosensitive drum coating tank, which is a means for replenishing the solvent .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5298802A JP2878093B2 (en) | 1993-11-30 | 1993-11-30 | Photosensitive drum coating tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5298802A JP2878093B2 (en) | 1993-11-30 | 1993-11-30 | Photosensitive drum coating tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07152165A JPH07152165A (en) | 1995-06-16 |
| JP2878093B2 true JP2878093B2 (en) | 1999-04-05 |
Family
ID=17864415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5298802A Expired - Fee Related JP2878093B2 (en) | 1993-11-30 | 1993-11-30 | Photosensitive drum coating tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2878093B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990667A (en) * | 1982-11-16 | 1984-05-25 | Canon Inc | Coating method |
| JPH02131241A (en) * | 1988-11-11 | 1990-05-21 | Fuji Photo Film Co Ltd | Production of electrophotographic sensitive body |
| JPH02173753A (en) * | 1988-12-27 | 1990-07-05 | Sharp Corp | Dip coating device |
| JP2794746B2 (en) * | 1989-02-06 | 1998-09-10 | ミノルタ株式会社 | Dip coating apparatus and dip coating method for conductive substrate |
| JPH04114761A (en) * | 1990-09-05 | 1992-04-15 | Mita Ind Co Ltd | System for circulating coating liquid |
-
1993
- 1993-11-30 JP JP5298802A patent/JP2878093B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07152165A (en) | 1995-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |