JPH058427B2 - - Google Patents
Info
- Publication number
- JPH058427B2 JPH058427B2 JP11687482A JP11687482A JPH058427B2 JP H058427 B2 JPH058427 B2 JP H058427B2 JP 11687482 A JP11687482 A JP 11687482A JP 11687482 A JP11687482 A JP 11687482A JP H058427 B2 JPH058427 B2 JP H058427B2
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- power supply
- supply voltage
- oscillation frequency
- toner concentration
- 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 - Lifetime
Links
- 230000010355 oscillation Effects 0.000 claims description 44
- 238000001514 detection method Methods 0.000 claims description 28
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 description 15
- 230000035945 sensitivity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11687482A JPS597977A (ja) | 1982-07-07 | 1982-07-07 | トナ−濃度制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11687482A JPS597977A (ja) | 1982-07-07 | 1982-07-07 | トナ−濃度制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS597977A JPS597977A (ja) | 1984-01-17 |
JPH058427B2 true JPH058427B2 (enrdf_load_stackoverflow) | 1993-02-02 |
Family
ID=14697765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11687482A Granted JPS597977A (ja) | 1982-07-07 | 1982-07-07 | トナ−濃度制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS597977A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63284581A (ja) * | 1987-05-15 | 1988-11-21 | Sharp Corp | トナ−濃度制御装置 |
JP2019117253A (ja) * | 2017-12-27 | 2019-07-18 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
-
1982
- 1982-07-07 JP JP11687482A patent/JPS597977A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS597977A (ja) | 1984-01-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4734737A (en) | Control of toner concentration in a developer | |
US4321886A (en) | Apparatus for controlling toner concentration | |
JPH06101052B2 (ja) | 硬貨識別装置 | |
JPH058427B2 (enrdf_load_stackoverflow) | ||
US4091339A (en) | Oscillator | |
US4059796A (en) | Second harmonic magnetic field detection circuit with means to rectify the sensed signal | |
JPH06289717A (ja) | 磁気的検知装置 | |
US7809296B2 (en) | Printing device toner control including rest recovery system, method and algorithm | |
JPS5816265A (ja) | 現像バイアス用電源 | |
US5310425A (en) | Toner concentration detector for a two-component developer | |
JPH01214755A (ja) | 画像形成装置のトナー濃度制御装置 | |
JPS5833271A (ja) | 電子写真装置におけるトナ−濃度自動調整装置 | |
JP2501429B2 (ja) | 磁気的検知装置 | |
JP3640321B2 (ja) | 磁気的検知装置 | |
JPH0322989B2 (enrdf_load_stackoverflow) | ||
JPS59164575A (ja) | トナ−濃度検出装置 | |
JP4174190B2 (ja) | 磁性体検知装置、これを用いた画像形成装置又はディジタル複写機、トナー濃度検知装置、導体検知装置 | |
JPH0810799Y2 (ja) | 変流形センサー | |
JPS6157972A (ja) | 現像剤の濃度制御装置 | |
JPH027422B2 (enrdf_load_stackoverflow) | ||
JPH05340923A (ja) | 磁気的検出装置 | |
JPH03248178A (ja) | トナー検知装置 | |
EP0292130A2 (en) | Toner concentration detection | |
JP2894754B2 (ja) | トナー濃度センサー | |
JP2001091607A (ja) | 磁気的検知装置及び電子写真現像装置 |