IT1129426B - Dispositivo avvisatore dello stato di uno sviluppatore di immagini elettrostatiche - Google Patents
Dispositivo avvisatore dello stato di uno sviluppatore di immagini elettrostaticheInfo
- Publication number
- IT1129426B IT1129426B IT67390/80A IT6739080A IT1129426B IT 1129426 B IT1129426 B IT 1129426B IT 67390/80 A IT67390/80 A IT 67390/80A IT 6739080 A IT6739080 A IT 6739080A IT 1129426 B IT1129426 B IT 1129426B
- Authority
- IT
- Italy
- Prior art keywords
- warning device
- electrostatic image
- image developer
- state warning
- state
- Prior art date
Links
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S222/00—Dispensing
- Y10S222/01—Xerography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2870879A JPS55121459A (en) | 1979-03-14 | 1979-03-14 | Developer supervising device |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8067390A0 IT8067390A0 (it) | 1980-03-13 |
IT1129426B true IT1129426B (it) | 1986-06-04 |
Family
ID=12255947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67390/80A IT1129426B (it) | 1979-03-14 | 1980-03-13 | Dispositivo avvisatore dello stato di uno sviluppatore di immagini elettrostatiche |
Country Status (5)
Country | Link |
---|---|
US (1) | US4331184A (it) |
JP (1) | JPS55121459A (it) |
DE (1) | DE3009686C2 (it) |
DK (1) | DK159342C (it) |
IT (1) | IT1129426B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745573A (en) * | 1980-09-01 | 1982-03-15 | Hitachi Metals Ltd | Development device for magnetic toner |
DE3119029C2 (de) * | 1981-05-13 | 1983-02-10 | Siemens AG, 1000 Berlin und 8000 München | Vorrichtung zur Entwicklung von auf einem Ladungsbildträger angeordneten Ladungsbildern mit Hilfe eines aus Toner und Trägerteilchen bestehenden Entwicklergemisches |
US4397184A (en) * | 1981-10-09 | 1983-08-09 | International Business Machines Corporation | Method and apparatus for testing xerographic developer mix |
DE3308066C1 (de) * | 1983-03-08 | 1984-09-13 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Farbdosiervorrichtung fuer eine Farbkastenwalze |
JPS61230175A (ja) * | 1985-04-03 | 1986-10-14 | Minolta Camera Co Ltd | 静電潜像現像装置 |
US4860924A (en) * | 1986-02-14 | 1989-08-29 | Savin Corporation | Liquid developer charge director control |
WO1987005128A1 (en) * | 1986-02-14 | 1987-08-27 | Savin Corporation | Liquid developer charge director control |
JPH02297081A (ja) * | 1989-05-12 | 1990-12-07 | Mineruba:Kk | 磁気ヘッド |
JP2989214B2 (ja) * | 1990-04-16 | 1999-12-13 | シャープ株式会社 | 画像形成装置 |
US5162849A (en) * | 1990-11-23 | 1992-11-10 | Konica Corporation | Image forming apparatus having a developer deterioration detecting device |
JP6004799B2 (ja) * | 2012-07-10 | 2016-10-12 | キヤノン株式会社 | 現像剤収容容器及び画像形成装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4226525A (en) * | 1976-10-19 | 1980-10-07 | Ricoh Company, Ltd. | Electrostatic copying machine |
JPS5398840A (en) * | 1977-02-09 | 1978-08-29 | Ricoh Co Ltd | Detection of deterioration state of developing agnet |
JPS53126944A (en) * | 1977-04-13 | 1978-11-06 | Hitachi Ltd | Developing device using developing powder |
JPS609269B2 (ja) * | 1977-04-19 | 1985-03-08 | 株式会社リコー | 2成分系現像剤におけるトナ−濃度検知方法 |
DE2727402C2 (de) * | 1977-06-18 | 1979-04-19 | Hoechst Ag, 6000 Frankfurt | Vorrichtung zur Messung der Tonerkonzentration eines Entwicklergemisches |
US4230070A (en) * | 1977-08-24 | 1980-10-28 | Minolta Camera Kabushiki Kaisha | Device for automatically replenishing toner to dry-type developing apparatus for electrophotography |
-
1979
- 1979-03-14 JP JP2870879A patent/JPS55121459A/ja active Granted
-
1980
- 1980-03-06 US US06/127,634 patent/US4331184A/en not_active Expired - Lifetime
- 1980-03-13 IT IT67390/80A patent/IT1129426B/it active
- 1980-03-13 DE DE3009686A patent/DE3009686C2/de not_active Expired
- 1980-03-13 DK DK107880A patent/DK159342C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS55121459A (en) | 1980-09-18 |
DK107880A (da) | 1980-09-15 |
DK159342B (da) | 1990-10-01 |
DE3009686C2 (de) | 1982-10-21 |
US4331184A (en) | 1982-05-25 |
DK159342C (da) | 1991-03-04 |
IT8067390A0 (it) | 1980-03-13 |
JPS6329261B2 (it) | 1988-06-13 |
DE3009686A1 (de) | 1980-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950331 |