GB1358448A - Toner dispenser - Google Patents
Toner dispenserInfo
- Publication number
- GB1358448A GB1358448A GB3869971A GB3869971A GB1358448A GB 1358448 A GB1358448 A GB 1358448A GB 3869971 A GB3869971 A GB 3869971A GB 3869971 A GB3869971 A GB 3869971A GB 1358448 A GB1358448 A GB 1358448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- capacitor
- aug
- photo
- cell
- 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
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
- G03G15/0805—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a brush
-
- 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
- G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
- G03G15/0889—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for agitation or stirring
-
- 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
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
1358448 Electro-photographic developing apparatus XEROX CORP 18 Aug 1971 [19 Aug 1970] 38699/71 Heading G2H Toner is dispensed from a hopper 32 by a metering roller 34. As shown, the replenished developer is fed by an auger 52 to an aluminium roller 16 which supplies a fur or magnetic brush 12. In Fig. 2, a photo-cell P1 measures the density of the developed image and charges a capacitor 72 accordingly. When the charge reaches a predetermined value a threshold device 80 energizes a relay 86 to rotate the roller 34. Each time the roller 34 rotates it closes a switch 74 to discharge capacitor 72. In Fig. 3 (not shown) photo-cell P1 is dispersed with and an electrostatic character printer sends a pulse to capacitor 72 each time a character is printed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6505270A | 1970-08-19 | 1970-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1358448A true GB1358448A (en) | 1974-07-03 |
Family
ID=22060032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3869971A Expired GB1358448A (en) | 1970-08-19 | 1971-08-18 | Toner dispenser |
Country Status (7)
Country | Link |
---|---|
US (1) | US3659556A (en) |
BE (1) | BE771423A (en) |
CA (1) | CA936681A (en) |
DE (1) | DE2141677A1 (en) |
FR (1) | FR2102375B1 (en) |
GB (1) | GB1358448A (en) |
NL (1) | NL7111221A (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3764208A (en) * | 1970-12-29 | 1973-10-09 | Canon Kk | Developing device for use in electrophotographic copying machines |
DE2226924A1 (en) * | 1972-06-02 | 1973-12-20 | Kalle Ag | METHOD AND DEVICE FOR MEASURING AND CONTROLLING THE TONER CONCENTRATION IN ELECTROPHOTOGRAPHIC REPRODUCTION MACHINES |
NL7210357A (en) * | 1971-08-06 | 1973-02-08 | ||
DE2410188B2 (en) * | 1974-03-04 | 1979-04-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Method and apparatus for developing electrostatic images |
US4108658A (en) * | 1974-03-11 | 1978-08-22 | Oce-Van Der Grinten N.V. | Process for developing electrostatic latent images |
JPS50155235A (en) * | 1974-06-04 | 1975-12-15 | ||
US3985098A (en) * | 1975-01-20 | 1976-10-12 | Itek Corporation | Toner dispensing apparatus |
US4075977A (en) * | 1977-01-12 | 1978-02-28 | Eastman Kodak Company | Mixing hopper for magnetic brush developing apparatus |
DE2752865A1 (en) * | 1977-11-26 | 1979-05-31 | Hauni Werke Koerber & Co Kg | DEVICE FOR APPLYING PAINT POWDER, PREFERABLY BRONZE POWDER, ON A RUNNING STRIP OF CIGARETTE PAPER |
US4260073A (en) * | 1978-08-23 | 1981-04-07 | International Business Machines Corporation | Virgin toner and used toner supply apparatus and method |
US4348100A (en) * | 1980-09-02 | 1982-09-07 | Xerox Corporation | Control for xerographic system |
CA1217045A (en) * | 1981-07-23 | 1987-01-27 | Raymond E. Poehlein | Particle dispensing system |
US4682874A (en) * | 1981-11-19 | 1987-07-28 | Xerox Corporation | Particle level indicator |
US4397546A (en) * | 1982-01-18 | 1983-08-09 | Xerox Corporation | Particle dispensing system |
JPS59188630A (en) * | 1983-04-12 | 1984-10-26 | Mita Ind Co Ltd | Electrostatic copying machine |
US4537495A (en) * | 1983-07-01 | 1985-08-27 | Zerox Corporation | Multispeed development system |
US4553033A (en) * | 1983-08-24 | 1985-11-12 | Xerox Corporation | Infrared reflectance densitometer |
US4711551A (en) * | 1985-09-13 | 1987-12-08 | Sanyo Electric Co., Ltd. | Developing apparatus |
US4926217A (en) * | 1986-08-11 | 1990-05-15 | Xerox Corporation | Particle transport |
US4847659A (en) * | 1987-05-21 | 1989-07-11 | Eastman Kodak Company | Apparatus for controlling toner replenishment in electrostatographic printer |
JPH04239661A (en) * | 1991-01-24 | 1992-08-27 | Brother Ind Ltd | Image forming device |
DE10107647A1 (en) * | 2001-02-19 | 2002-09-19 | Oce Printing Systems Gmbh | Device and method for replacing aged developer |
FR3120720B1 (en) | 2021-03-11 | 2023-02-10 | Psa Automobiles Sa | Motor vehicle displaying on a screen of said vehicle, graphic interfaces for driving assistance |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3103445A (en) * | 1963-09-10 | Method of developing an electrostatic | ||
US3273016A (en) * | 1964-04-23 | 1966-09-13 | Oxy Dry Sprayer Corp | Powder sprayers |
US3527651A (en) * | 1966-10-20 | 1970-09-08 | Addressograph Multigraph | Method of and apparatus for developing electrostatic images |
US3529546A (en) * | 1967-07-12 | 1970-09-22 | Ibm | Printing substance control |
US3409901A (en) * | 1967-07-12 | 1968-11-05 | Ibm | Automatic toner concentration control for use with crt input |
-
1970
- 1970-08-19 US US65052A patent/US3659556A/en not_active Expired - Lifetime
-
1971
- 1971-03-16 CA CA107846A patent/CA936681A/en not_active Expired
- 1971-08-13 NL NL7111221A patent/NL7111221A/xx unknown
- 1971-08-17 FR FR717130743A patent/FR2102375B1/fr not_active Expired
- 1971-08-17 BE BE771423A patent/BE771423A/en unknown
- 1971-08-18 GB GB3869971A patent/GB1358448A/en not_active Expired
- 1971-08-19 DE DE19712141677 patent/DE2141677A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3659556A (en) | 1972-05-02 |
FR2102375B1 (en) | 1973-08-10 |
FR2102375A1 (en) | 1972-04-07 |
NL7111221A (en) | 1972-02-22 |
CA936681A (en) | 1973-11-13 |
DE2141677A1 (en) | 1972-02-24 |
BE771423A (en) | 1972-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |