JPH045386B2 - - Google Patents
Info
- Publication number
- JPH045386B2 JPH045386B2 JP59182093A JP18209384A JPH045386B2 JP H045386 B2 JPH045386 B2 JP H045386B2 JP 59182093 A JP59182093 A JP 59182093A JP 18209384 A JP18209384 A JP 18209384A JP H045386 B2 JPH045386 B2 JP H045386B2
- Authority
- JP
- Japan
- Prior art keywords
- developer
- sensor
- magnet
- toner
- sleeve
- 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
- 230000005405 multipole Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 description 20
- 230000008859 change Effects 0.000 description 17
- 108091008695 photoreceptors Proteins 0.000 description 12
- 230000007423 decrease Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000009499 grossing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003756 stirring Methods 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
-
- 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)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18209384A JPS6157967A (ja) | 1984-08-29 | 1984-08-29 | 現像剤の濃度制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18209384A JPS6157967A (ja) | 1984-08-29 | 1984-08-29 | 現像剤の濃度制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6157967A JPS6157967A (ja) | 1986-03-25 |
JPH045386B2 true JPH045386B2 (de) | 1992-01-31 |
Family
ID=16112227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18209384A Granted JPS6157967A (ja) | 1984-08-29 | 1984-08-29 | 現像剤の濃度制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6157967A (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52123242A (en) * | 1976-04-09 | 1977-10-17 | Hitachi Ltd | Detector for toner mixing ratio of developing agent |
JPS53107850A (en) * | 1977-03-02 | 1978-09-20 | Hitachi Ltd | Toner concentration detector of developing powder |
JPS53125844A (en) * | 1977-04-11 | 1978-11-02 | Matsushita Electric Ind Co Ltd | Developing apparatus for electrostatic photography |
JPS56168671A (en) * | 1980-05-29 | 1981-12-24 | Hitachi Metals Ltd | Magnetic brush developing device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0142107Y2 (de) * | 1981-05-20 | 1989-12-11 |
-
1984
- 1984-08-29 JP JP18209384A patent/JPS6157967A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52123242A (en) * | 1976-04-09 | 1977-10-17 | Hitachi Ltd | Detector for toner mixing ratio of developing agent |
JPS53107850A (en) * | 1977-03-02 | 1978-09-20 | Hitachi Ltd | Toner concentration detector of developing powder |
JPS53125844A (en) * | 1977-04-11 | 1978-11-02 | Matsushita Electric Ind Co Ltd | Developing apparatus for electrostatic photography |
JPS56168671A (en) * | 1980-05-29 | 1981-12-24 | Hitachi Metals Ltd | Magnetic brush developing device |
Also Published As
Publication number | Publication date |
---|---|
JPS6157967A (ja) | 1986-03-25 |
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