JPH02126156U - - Google Patents
Info
- Publication number
- JPH02126156U JPH02126156U JP3468989U JP3468989U JPH02126156U JP H02126156 U JPH02126156 U JP H02126156U JP 3468989 U JP3468989 U JP 3468989U JP 3468989 U JP3468989 U JP 3468989U JP H02126156 U JPH02126156 U JP H02126156U
- Authority
- JP
- Japan
- Prior art keywords
- developing
- detection sensor
- potential
- roller
- wet
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 2
- 108091008695 photoreceptors Proteins 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Landscapes
- Developing For Electrophotography (AREA)
- Wet Developing In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
Description
第１図は本考案の一実施例における湿式現像装
置の概略を表わした側面説明図、第２図は本考案
の他の実施例における湿式現像装置の概略を表わ
した側面説明図、第３図は従来における湿式現像
装置の概略を表わした側面説明図である。
１１……感光体ドラム、１２……現像ローラー
、１５，２５……電位検出センサー、１６，２６
……電位干渉防止部材。
FIG. 1 is an explanatory side view schematically showing a wet type developing device in one embodiment of the present invention, FIG. 2 is an explanatory side view schematically showing a wet developing device in another embodiment of the present invention, and FIG. 1 is an explanatory side view schematically showing a conventional wet-type developing device. 11... Photosensitive drum, 12... Developing roller, 15, 25... Potential detection sensor, 16, 26
...Potential interference prevention member.
Claims (1)
域において湿式トナーを供給する現像ローラーと
、現像領域に搬入される前における感光体の表面
電位を検出する電位検出センサーと、上記電位検
出センサーからの検出信号に基づいて決定される
所定の現像バイアス電圧を前記現像ローラーに印
加するバイアス印加回路とを備えてなる湿式現像
装置において、 上記電位検出センサーには、前記現像ローラー
に印加される現像バイアス電圧による電位の干渉
を防止するように電位干渉防止部材が付設されて
いることを特徴とする湿式現像装置。 ２ 請求項の１に記載された湿式現像装置におい
て、 電位検出センサーは、現像ローラーを兼用する
ように導電性ローラーから形成されているととも
に、 電位干渉防止部材は、上記電位検出センサーと
しての導電性ローラーに湿式現像液を供給する現
像液供給部材と電位検出センサーとしての導電性
ローラーの表面上を清掃するクリーニング部材と
を兼ねるように絶縁性の樹脂フイルムから形成さ
れていることを特徴とする湿式現像装置。[Claims for Utility Model Registration] 1. A developing roller that supplies wet toner to an electrostatic latent image formed on a photoreceptor in a developing area, and detecting the surface potential of the photoreceptor before it is carried into the developing area. In a wet developing device comprising a potential detection sensor and a bias application circuit that applies a predetermined developing bias voltage determined based on a detection signal from the potential detection sensor to the developing roller, the potential detection sensor includes: . A wet type developing device, characterized in that a potential interference prevention member is attached to prevent potential interference caused by a developing bias voltage applied to the developing roller. 2. In the wet developing device according to claim 1, the potential detection sensor is formed of a conductive roller so as to double as a developing roller, and the potential interference prevention member is formed of a conductive roller as the potential detection sensor. A wet method characterized by being formed from an insulating resin film so as to serve both as a developer supply member for supplying a wet developer to the roller and as a cleaning member for cleaning the surface of a conductive roller serving as a potential detection sensor. Developing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3468989U JPH02126156U (en) | 1989-03-27 | 1989-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3468989U JPH02126156U (en) | 1989-03-27 | 1989-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02126156U true JPH02126156U (en) | 1990-10-17 |
Family
ID=31539383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3468989U Pending JPH02126156U (en) | 1989-03-27 | 1989-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02126156U (en) |
-
1989
- 1989-03-27 JP JP3468989U patent/JPH02126156U/ja active Pending
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