JPH0167663U - - Google Patents
Info
- Publication number
- JPH0167663U JPH0167663U JP1987162427U JP16242787U JPH0167663U JP H0167663 U JPH0167663 U JP H0167663U JP 1987162427 U JP1987162427 U JP 1987162427U JP 16242787 U JP16242787 U JP 16242787U JP H0167663 U JPH0167663 U JP H0167663U
- Authority
- JP
- Japan
- Prior art keywords
- doctor blade
- toner concentration
- developer
- detection device
- concentration detection
- 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 9
- 238000003756 stirring Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000035699 permeability Effects 0.000 claims 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本案の一実施例を示す現像装置の側面
図、第２図は従来の現像装置の側面図である。
１……ホツパー、２……現像器、３……トナー
、４……現像剤、５……マグネツトローラ、６…
…ドクターブレード、７……トナー濃度検出装置
、７ａ……検出ヘツド、８……ガイド板、８ａ…
…切り欠き窓、９……搬送板、１０……撹拌ロー
ラ。
FIG. 1 is a side view of a developing device showing an embodiment of the present invention, and FIG. 2 is a side view of a conventional developing device. 1...Hopper, 2...Developer, 3...Toner, 4...Developer, 5...Magnetic roller, 6...
...Doctor blade, 7...Toner concentration detection device, 7a...Detection head, 8...Guide plate, 8a...
... Notch window, 9 ... Conveyance plate, 10 ... Stirring roller.
Claims (1)
搬送された現像剤を規制するドクターブレード、
該ドクターブレード上に設けられ現像剤の透磁率
に対応して変化するインダクタンスにより現像剤
中のトナー濃度を検出するトナー濃度検出装置、
該ドクターブレードにより規制され該トナー濃度
検出装置の検出ヘツド部を通過した現像剤を撹拌
部に搬送する搬送板より成る現像装置において、
該ドクターブレードにより規制された電像剤を該
ドクターブレードと垂直上方に流し、該ドクター
ブレード上部にある該トナー濃度検出装置の検出
ヘツド全面に一定圧力で接触させることができる
流通路を形成するガイド板と称す平板を該トナー
濃度検出装置の検出ヘツド前部に設けたことを特
徴とする現像装置。 a magnet roller; a doctor blade that regulates the developer conveyed by the magnet roller;
a toner concentration detection device that is provided on the doctor blade and detects the toner concentration in the developer using an inductance that changes in accordance with the magnetic permeability of the developer;
A developing device comprising a conveying plate that conveys the developer that has passed through the detection head portion of the toner concentration detection device and is regulated by the doctor blade to the stirring portion,
A guide that forms a flow path that allows the electrostatic toner regulated by the doctor blade to flow vertically above the doctor blade and to contact the entire surface of the detection head of the toner concentration detection device above the doctor blade at a constant pressure. A developing device characterized in that a flat plate called a plate is provided in front of a detection head of the toner concentration detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162427U JPH0167663U (en) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162427U JPH0167663U (en) | 1987-10-26 | 1987-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0167663U true JPH0167663U (en) | 1989-05-01 |
Family
ID=31446242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162427U Pending JPH0167663U (en) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0167663U (en) |
-
1987
- 1987-10-26 JP JP1987162427U patent/JPH0167663U/ja active Pending
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