JPS61160459U - - Google Patents
Info
- Publication number
- JPS61160459U JPS61160459U JP4355885U JP4355885U JPS61160459U JP S61160459 U JPS61160459 U JP S61160459U JP 4355885 U JP4355885 U JP 4355885U JP 4355885 U JP4355885 U JP 4355885U JP S61160459 U JPS61160459 U JP S61160459U
- Authority
- JP
- Japan
- Prior art keywords
- doctor blade
- developer
- developing device
- toner concentration
- wall
- 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 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案に係る現像装置の実施例を示す
断面図、第２図は本考案の別の例を示す断面図で
ある。
４……現像ローラ、８……ドクターブレード、
９……ガイド板、１０……トナー濃度センサー、
１２……邪魔板。
FIG. 1 is a sectional view showing an embodiment of a developing device according to the present invention, and FIG. 2 is a sectional view showing another example of the present invention. 4...Developing roller, 8...Doctor blade,
9...Guide plate, 10...Toner concentration sensor,
12...Baffle board.
Claims (1)
る現像ローラと、上記磁気ブラシの穂高を規制す
るドクターブレードと、このドクターブレードに
よつて掻き取られた現像剤を撹拌ローラ上に案内
するガイド板とを有し、上記ドクターブレードに
よつて掻き取られた現像剤がドクターブレードの
壁面に沿つて順次上昇して上記ガイド板上に搬送
されるように構成された現像装置において、ドク
ターブレードの壁面外方には上記現像剤のトナー
濃度を検出するトナー濃度センサーを設け、かつ
ドクターブレードの壁面内方には現像剤の上昇流
を規制する邪魔板をトナー濃度検出部の上方に突
設したことを特徴とする現像装置。 A developing roller to which a magnetic brush is formed by adhering developer to its peripheral surface, a doctor blade that regulates the height of the magnetic brush, and a doctor blade that guides the developer scraped off by the doctor blade onto the stirring roller. In the developing device, the developing device has a guide plate and is configured such that the developer scraped off by the doctor blade sequentially ascends along the wall surface of the doctor blade and is conveyed onto the guide plate. A toner concentration sensor for detecting the toner concentration of the developer is provided on the outside of the wall, and a baffle plate that restricts the upward flow of the developer is provided on the inside of the wall of the doctor blade, protruding above the toner concentration detection section. A developing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4355885U JPS61160459U (en) | 1985-03-26 | 1985-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4355885U JPS61160459U (en) | 1985-03-26 | 1985-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61160459U true JPS61160459U (en) | 1986-10-04 |
Family
ID=30555339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4355885U Pending JPS61160459U (en) | 1985-03-26 | 1985-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61160459U (en) |
-
1985
- 1985-03-26 JP JP4355885U patent/JPS61160459U/ja active Pending
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