JPH0342676B2 - - Google Patents
Info
- Publication number
- JPH0342676B2 JPH0342676B2 JP59278497A JP27849784A JPH0342676B2 JP H0342676 B2 JPH0342676 B2 JP H0342676B2 JP 59278497 A JP59278497 A JP 59278497A JP 27849784 A JP27849784 A JP 27849784A JP H0342676 B2 JPH0342676 B2 JP H0342676B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- developer
- toner concentration
- toner
- mixing roller
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 78
- 238000001514 detection method Methods 0.000 claims description 65
- 239000002245 particle Substances 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 9
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920004943 Delrin® Polymers 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910001035 Soft ferrite Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011787 zinc oxide 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59278497A JPS61151579A (ja) | 1984-12-25 | 1984-12-25 | 現像装置 |
| US06/812,983 US4660505A (en) | 1984-12-25 | 1985-12-24 | Developing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59278497A JPS61151579A (ja) | 1984-12-25 | 1984-12-25 | 現像装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61151579A JPS61151579A (ja) | 1986-07-10 |
| JPH0342676B2 true JPH0342676B2 (en]) | 1991-06-27 |
Family
ID=17598137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59278497A Granted JPS61151579A (ja) | 1984-12-25 | 1984-12-25 | 現像装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4660505A (en]) |
| JP (1) | JPS61151579A (en]) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0792622B2 (ja) * | 1985-08-08 | 1995-10-09 | ミノルタ株式会社 | 静電潜像現像装置 |
| JPS6294356U (en]) * | 1985-12-03 | 1987-06-16 | ||
| JPS6294357U (en]) * | 1985-12-03 | 1987-06-16 | ||
| US5184181A (en) * | 1986-09-24 | 1993-02-02 | Mita Industrial Co., Ltd. | Cartridge discriminating system |
| JPH0656531B2 (ja) * | 1987-02-25 | 1994-07-27 | シャープ株式会社 | 電子写真プロセスにおける現像装置 |
| JPH0795207B2 (ja) * | 1988-03-31 | 1995-10-11 | 日立金属株式会社 | 現像装置 |
| US4875078A (en) * | 1988-09-08 | 1989-10-17 | Eastman Kodak Company | Dead time compensation for toner replenishment |
| JPH02107166U (en]) * | 1989-02-15 | 1990-08-27 | ||
| US5081498A (en) * | 1991-01-10 | 1992-01-14 | Xerox Corporation | Humidity compensation in electrophotographic printing by measuring the dielectric characteristics of the development mixture |
| JPH05127537A (ja) * | 1991-11-08 | 1993-05-25 | Fujitsu Ltd | 現像装置 |
| JPH0643757A (ja) * | 1992-07-24 | 1994-02-18 | Konica Corp | 画像記録装置 |
| US5239346A (en) * | 1992-07-27 | 1993-08-24 | Xerox Corporation | Agitator for toner supply system having cleaning attachment |
| US5729787A (en) * | 1996-07-23 | 1998-03-17 | Eastman Kodak Company | Toner concentration monitor and method |
| JP3410329B2 (ja) * | 1997-05-30 | 2003-05-26 | 京セラ株式会社 | 現像装置 |
| US6104892A (en) * | 1998-06-08 | 2000-08-15 | Canon Kabushiki Kaisha | Developing device and image forming apparatus |
| USD537533S1 (en) | 2005-09-28 | 2007-02-27 | Kiltie Corporation | Retaining wall block |
| US7409170B2 (en) * | 2006-03-23 | 2008-08-05 | Kabushiki Kaisha Toshiba | Developing apparatus, image forming apparatus and density detection method |
| JP2017191224A (ja) * | 2016-04-14 | 2017-10-19 | キヤノン株式会社 | 現像装置及び画像形成装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126944A (en) * | 1977-04-13 | 1978-11-06 | Hitachi Ltd | Developing device using developing powder |
| JPS5476165A (en) * | 1977-11-29 | 1979-06-18 | Ricoh Co Ltd | Developing device of copying machine |
| JPS5726878A (en) * | 1980-07-23 | 1982-02-13 | Mita Ind Co Ltd | Display device for remaining amount of two component type developer |
| JPS58145622A (ja) * | 1982-02-12 | 1983-08-30 | Tdk Corp | 磁性キヤリヤ粒子 |
| JPS58202456A (ja) * | 1982-04-07 | 1983-11-25 | Hitachi Metals Ltd | 電子写真用フエライトキヤリア− |
| JPS59164575A (ja) * | 1983-03-09 | 1984-09-17 | Toshiba Corp | トナ−濃度検出装置 |
-
1984
- 1984-12-25 JP JP59278497A patent/JPS61151579A/ja active Granted
-
1985
- 1985-12-24 US US06/812,983 patent/US4660505A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61151579A (ja) | 1986-07-10 |
| US4660505A (en) | 1987-04-28 |
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| Publication | Publication Date | Title |
|---|---|---|
| JPH0342676B2 (en]) | ||
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| JPH0446430B2 (en]) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |