JPS61162871U - - Google Patents
Info
- Publication number
- JPS61162871U JPS61162871U JP4568785U JP4568785U JPS61162871U JP S61162871 U JPS61162871 U JP S61162871U JP 4568785 U JP4568785 U JP 4568785U JP 4568785 U JP4568785 U JP 4568785U JP S61162871 U JPS61162871 U JP S61162871U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- developing device
- toner concentration
- inclined surface
- forming member
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例としての現像装置を
備えた印写装置の概略構成図、第２図は同上現像
装置の拡大断面図、第３図及び第４図は傾斜角θ
の設定に用いる各々異なる実験装置の概略説明図
をそれぞれ示している。
１…感光体ドラム、１２…フイン、１３…スク
リユー、１４…パドルホイール、１５…マグロー
ラ、１９…インダクタンスセンサー、１１４…傾
斜板部、１１５…傾斜面、Ｃ…トナー濃度検知位
置、Ｐ２…流入位置。
FIG. 1 is a schematic configuration diagram of a printing device equipped with a developing device as an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the same developing device, and FIGS. 3 and 4 show an inclination angle θ.
A schematic explanatory diagram of each different experimental apparatus used for the setup is shown. DESCRIPTION OF SYMBOLS 1... Photosensitive drum, 12... Fin, 13... Screw, 14... Paddle wheel, 15... Mag roller, 19... Inductance sensor, 114... Inclined plate part, 115... Inclined surface, C... Toner concentration detection position, P2... Inflow position .
Claims (1)
に搬送手段により現像ローラに供給し、上記現像
ローラにより磁気的に吸着した現像剤を静電潜像
担持体に接触させ、しかも、上記現像ローラより
離脱した現像剤をこの現像剤のトナー濃度検知位
置に対設された傾斜面形成部材に沿つて流下させ
て上記送り手段の現像剤流入位置に戻す現像装置
において、上記傾斜面形成部材上の傾斜面の水平
面に対する傾斜角を３０°以上に設定したことを
特徴とする現像装置。 ２ 傾斜面形成部材はトナー濃度センサーを取付
けたことを特徴とする実用新案登録請求の範囲第
１項記載の現像装置。 ３ トナー濃度センサーは現像剤中の磁性体量に
感応することを特徴とする実用新案登録請求の範
囲第２項記載の現像装置。 ４ トナー濃度センサーは現像剤中の色調に感応
することを特徴とする実用新案登録請求の範囲第
２項記載の現像装置。[Claims for Utility Model Registration] 1. Powdered developer is stirred by a stirring means and supplied to a developing roller by a conveying means, and the developer magnetically adsorbed by the developing roller is brought into contact with an electrostatic latent image carrier. Further, in the developing device, the developer separated from the developing roller is caused to flow down along a slope forming member disposed opposite to the toner concentration detection position of the developer and returned to the developer inflow position of the feeding means. A developing device characterized in that the angle of inclination of the inclined surface on the inclined surface forming member with respect to the horizontal plane is set to 30° or more. 2. The developing device according to claim 1, wherein the inclined surface forming member is provided with a toner concentration sensor. 3. The developing device according to claim 2, wherein the toner concentration sensor is sensitive to the amount of magnetic material in the developer. 4. The developing device according to claim 2, wherein the toner concentration sensor is sensitive to the color tone in the developer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985045687U JPH0633486Y2 (en) | 1985-03-28 | 1985-03-28 | Development device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985045687U JPH0633486Y2 (en) | 1985-03-28 | 1985-03-28 | Development device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61162871U true JPS61162871U (en) | 1986-10-08 |
| JPH0633486Y2 JPH0633486Y2 (en) | 1994-08-31 |
Family
ID=30559410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985045687U Expired - Lifetime JPH0633486Y2 (en) | 1985-03-28 | 1985-03-28 | Development device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633486Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420742A (en) * | 1977-07-15 | 1979-02-16 | Canon Inc | Concentration detecting method of developer |
| JPS54170134U (en) * | 1978-05-20 | 1979-12-01 |
-
1985
- 1985-03-28 JP JP1985045687U patent/JPH0633486Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420742A (en) * | 1977-07-15 | 1979-02-16 | Canon Inc | Concentration detecting method of developer |
| JPS54170134U (en) * | 1978-05-20 | 1979-12-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633486Y2 (en) | 1994-08-31 |
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