JPS53110848A - Detector of residual amount of developer - Google Patents
Detector of residual amount of developerInfo
- Publication number
- JPS53110848A JPS53110848A JP2540777A JP2540777A JPS53110848A JP S53110848 A JPS53110848 A JP S53110848A JP 2540777 A JP2540777 A JP 2540777A JP 2540777 A JP2540777 A JP 2540777A JP S53110848 A JPS53110848 A JP S53110848A
- Authority
- JP
- Japan
- Prior art keywords
- residual amount
- developer
- detector
- electrophotography
- coil
- 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
Abstract
PURPOSE:To automatically and correctly detect residual amount by magnetically detecting the residual amount of a developer through the change in the frequency produced in a coil in a dry type developing device, etc. of electrophotography.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2540777A JPS6034750B2 (en) | 1977-03-10 | 1977-03-10 | Developer remaining amount detection device |
GB823878A GB1597753A (en) | 1977-03-10 | 1978-03-02 | Apparatus and methods of detecting a residual amount of magnetic developer in a nonmagnetic container |
US05/884,532 US4186341A (en) | 1977-03-10 | 1978-03-08 | Magnetic developing agent level detection apparatus using an oscillator whose frequency is controlled by the level |
DE19782810502 DE2810502C2 (en) | 1977-03-10 | 1978-03-10 | Device for determining the amount of a magnetic developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2540777A JPS6034750B2 (en) | 1977-03-10 | 1977-03-10 | Developer remaining amount detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53110848A true JPS53110848A (en) | 1978-09-27 |
JPS6034750B2 JPS6034750B2 (en) | 1985-08-10 |
Family
ID=12165050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2540777A Expired JPS6034750B2 (en) | 1977-03-10 | 1977-03-10 | Developer remaining amount detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034750B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55135874A (en) * | 1979-04-12 | 1980-10-23 | Ricoh Co Ltd | Remaining developer amount detector |
US4682895A (en) * | 1985-08-06 | 1987-07-28 | Texas A&M University | Fiber optic probe for quantification of colorimetric reactions |
US5397411A (en) * | 1990-05-22 | 1995-03-14 | Optex Biomedical, Inc. | Method for making optical probe |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH058780Y2 (en) * | 1985-04-15 | 1993-03-04 |
-
1977
- 1977-03-10 JP JP2540777A patent/JPS6034750B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55135874A (en) * | 1979-04-12 | 1980-10-23 | Ricoh Co Ltd | Remaining developer amount detector |
JPS6316743B2 (en) * | 1979-04-12 | 1988-04-11 | Ricoh Kk | |
US4682895A (en) * | 1985-08-06 | 1987-07-28 | Texas A&M University | Fiber optic probe for quantification of colorimetric reactions |
US5397411A (en) * | 1990-05-22 | 1995-03-14 | Optex Biomedical, Inc. | Method for making optical probe |
Also Published As
Publication number | Publication date |
---|---|
JPS6034750B2 (en) | 1985-08-10 |
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