JPS59178654U - Toner concentration detection device - Google Patents
Toner concentration detection deviceInfo
- Publication number
- JPS59178654U JPS59178654U JP7334783U JP7334783U JPS59178654U JP S59178654 U JPS59178654 U JP S59178654U JP 7334783 U JP7334783 U JP 7334783U JP 7334783 U JP7334783 U JP 7334783U JP S59178654 U JPS59178654 U JP S59178654U
- Authority
- JP
- Japan
- Prior art keywords
- toner concentration
- detection device
- concentration detection
- receiving element
- light
- 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
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、トナー濃度検知装置を配置した一般的な磁気
ブラシ現像装置の線図、第２図は、従来のトナー濃度検
知装置を第１図に配置したときの第１図のｘ−ｘ断面図
、第３図は、従来のトナー濃度検知装置と本考案のトナ
ー濃度検知装置による出力電圧とトナー濃度の関係を示
す特性曲線図、第４図は、本考案のトナー濃度検知装置
を第１図に配置したときの第１図のｘ−ｘ断面図である
。
１：磁気ブラシ現像装置、４：磁気ブラシローラ、１３
、Ｉ３ａ、１３ｂ、トナー濃度検知装置、１４：発光素
子、１５：受光素子、１９：穂立ち部。Fig. 1 is a diagram of a general magnetic brush developing device in which a toner concentration detection device is arranged, and Fig. 2 is a diagram showing a conventional toner density detection device arranged as shown in Fig. 3 is a characteristic curve diagram showing the relationship between the output voltage and toner concentration of the conventional toner concentration detection device and the toner concentration detection device of the present invention. FIG. 4 is a characteristic curve diagram showing the relationship between the output voltage and toner concentration of the toner concentration detection device of the present invention. FIG. 2 is a sectional view taken along the line xx in FIG. 1 when arranged in FIG. 1; 1: Magnetic brush developing device, 4: Magnetic brush roller, 13
, I3a, 13b, toner concentration detection device, 14: light emitting element, 15: light receiving element, 19: spike portion.
Claims (1)
子からの光を照射し穂立ち部からの散乱光を受光素子に
入射させ受光素子の出力信号により上記現像剤のトナー
濃度を検知するトナー濃度検知装置において、 上記受光素子の軸線を上記磁気ブラシローラの円筒面に
ほぼ垂直に設けたことを特徴とするトナー濃度検知装置
。[Scope of Claim for Utility Model Registration] Light from a light emitting element is irradiated to the raised portion of the two-component developer on the magnetic brush roller, and the scattered light from the raised portion is incident on a light receiving element, and the output signal of the light receiving element is used to generate the above-mentioned product. A toner concentration detection device for detecting toner concentration of a developer, characterized in that the axis of the light receiving element is provided substantially perpendicular to the cylindrical surface of the magnetic brush roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7334783U JPS59178654U (en) | 1983-05-17 | 1983-05-17 | Toner concentration detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7334783U JPS59178654U (en) | 1983-05-17 | 1983-05-17 | Toner concentration detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178654U true JPS59178654U (en) | 1984-11-29 |
| JPH043315Y2 JPH043315Y2 (en) | 1992-02-03 |
Family
ID=30203472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7334783U Granted JPS59178654U (en) | 1983-05-17 | 1983-05-17 | Toner concentration detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178654U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52129527A (en) * | 1976-04-23 | 1977-10-31 | Canon Inc | Density adjustment for developing agent |
-
1983
- 1983-05-17 JP JP7334783U patent/JPS59178654U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52129527A (en) * | 1976-04-23 | 1977-10-31 | Canon Inc | Density adjustment for developing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043315Y2 (en) | 1992-02-03 |
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