JPS6161560U - - Google Patents
Info
- Publication number
- JPS6161560U JPS6161560U JP14549684U JP14549684U JPS6161560U JP S6161560 U JPS6161560 U JP S6161560U JP 14549684 U JP14549684 U JP 14549684U JP 14549684 U JP14549684 U JP 14549684U JP S6161560 U JPS6161560 U JP S6161560U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- sleeve
- toner
- toner concentration
- developing sleeve
- 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 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
図面は本考案の実施例を示し、第１図は現像部
付近の詳細断面図、第２図は静電写真複写機の概
略縦断面図である。第３図は従来構造の現像装置
の要部を示す断面図である。
１…感光体、１６…現像スリーブ、１８…二成
分系現像剤、１９…現像剤収容ケース、２０…永
久磁石、２１…ドクターブレード、２５…搬送翼
、２６…搬送ロータ、２７…トナー濃度検出セン
サー、ａ…磁性キヤリア、ｂ…トナー。
The drawings show an embodiment of the present invention, with FIG. 1 being a detailed sectional view of the vicinity of the developing section, and FIG. 2 being a schematic vertical sectional view of the electrostatic photocopying machine. FIG. 3 is a sectional view showing the main parts of a conventional developing device. DESCRIPTION OF SYMBOLS 1... Photoreceptor, 16... Developing sleeve, 18... Two-component developer, 19... Developer storage case, 20... Permanent magnet, 21... Doctor blade, 25... Conveying blade, 26... Conveying rotor, 27... Toner concentration detection Sensor, a...Magnetic carrier, b...Toner.
Claims (1)
リアとトナーとを混合した二成分系現像剤の収容
ケースの内部に設けると共に、前記現像スリーブ
の周面に形成される現像剤の穂の厚さを規制する
ドクターブレードを前記現像剤収容ケースに連設
し、かつ、現像剤の磁気特性の変化によつてトナ
ー濃度を検出してトナー補給装置を制御するトナ
ー濃度検出センサーを配置した磁気ブラシ現像装
置であつて、前記現像スリーブの周速よりも大で
且つ該スリーブとは逆方向に回転して現像剤を前
記ドクタースリーブ側に送り込む搬送ロータを、
前記現像剤収容ケースの内部に設けると共に、前
記ドクターブレードに対して搬送ロータの回転方
向下流側近くに前記トナー濃度検出センサーを配
置してあることを特徴とする磁気ブラシ現像装置
。 A developing sleeve with a built-in permanent magnet is provided inside a housing case for a two-component developer containing a magnetic carrier and toner, and the thickness of the developer spike formed on the circumferential surface of the developing sleeve is regulated. A magnetic brush developing device is provided with a doctor blade that is connected to the developer storage case, and a toner concentration detection sensor that detects toner concentration based on changes in the magnetic properties of the developer and controls a toner replenishment device. a conveying rotor that rotates at a peripheral speed higher than the circumferential speed of the developing sleeve and in a direction opposite to that of the sleeve and feeds the developer to the doctor sleeve side;
A magnetic brush developing device characterized in that the toner concentration detection sensor is provided inside the developer storage case and is arranged near the downstream side in the rotational direction of the conveyance rotor with respect to the doctor blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549684U JPS6161560U (en) | 1984-09-26 | 1984-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549684U JPS6161560U (en) | 1984-09-26 | 1984-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6161560U true JPS6161560U (en) | 1986-04-25 |
Family
ID=30703749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14549684U Pending JPS6161560U (en) | 1984-09-26 | 1984-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6161560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294270A (en) * | 1986-06-13 | 1987-12-21 | Canon Inc | Powdery material developing device |
-
1984
- 1984-09-26 JP JP14549684U patent/JPS6161560U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294270A (en) * | 1986-06-13 | 1987-12-21 | Canon Inc | Powdery material developing device |
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