JPH0210539Y2 - - Google Patents
Info
- Publication number
- JPH0210539Y2 JPH0210539Y2 JP1982073864U JP7386482U JPH0210539Y2 JP H0210539 Y2 JPH0210539 Y2 JP H0210539Y2 JP 1982073864 U JP1982073864 U JP 1982073864U JP 7386482 U JP7386482 U JP 7386482U JP H0210539 Y2 JPH0210539 Y2 JP H0210539Y2
- Authority
- JP
- Japan
- Prior art keywords
- toner concentration
- core
- coil
- detection coil
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 66
- 239000000463 material Substances 0.000 claims description 33
- 238000005259 measurement Methods 0.000 claims description 8
- 230000035945 sensitivity Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Dry Development In Electrophotography (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7386482U JPS58178153U (ja) | 1982-05-20 | 1982-05-20 | トナ−濃度検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7386482U JPS58178153U (ja) | 1982-05-20 | 1982-05-20 | トナ−濃度検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58178153U JPS58178153U (ja) | 1983-11-29 |
| JPH0210539Y2 true JPH0210539Y2 (US07922777-20110412-C00004.png) | 1990-03-15 |
Family
ID=30083348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7386482U Granted JPS58178153U (ja) | 1982-05-20 | 1982-05-20 | トナ−濃度検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58178153U (US07922777-20110412-C00004.png) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414242A (en) * | 1977-07-04 | 1979-02-02 | Hitachi Ltd | Measuring method for toner concentration in developer |
-
1982
- 1982-05-20 JP JP7386482U patent/JPS58178153U/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414242A (en) * | 1977-07-04 | 1979-02-02 | Hitachi Ltd | Measuring method for toner concentration in developer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58178153U (ja) | 1983-11-29 |
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