GB1292243A - Mixture composition monitor - Google Patents
Mixture composition monitorInfo
- Publication number
- GB1292243A GB1292243A GB30105/71A GB3010571A GB1292243A GB 1292243 A GB1292243 A GB 1292243A GB 30105/71 A GB30105/71 A GB 30105/71A GB 3010571 A GB3010571 A GB 3010571A GB 1292243 A GB1292243 A GB 1292243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- developer
- toner
- pivoted
- weight
- 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
- 239000000203 mixture Substances 0.000 title 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G1/00—Weighing apparatus involving the use of a counterweight or other counterbalancing mass
-
- 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
-
- 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)
- Control Or Security For Electrophotography (AREA)
Abstract
1292243 Weighing apparatus INTERNATIONAL BUSINESS MACHINES CORP 28 June 1971 [28 July 1970] 30105/71 Heading G1W [Also in Divisions G2-3] Electro-photographic developer comprising toner and carrier particles is fed through a tube 40 at such a rate that the tube is kept full of developer, and the weight of the tube of developer is used to monitor the rotation proportions of toner and carrier. As shown, tube 40 is pivoted at 63 by a system of wires Figs. 4 and 6 (not shown) and has a counterbalance arm bearing a counterweight 46. As toner is depleted the weight of the tube increases, the tube pivots downwards and a magnet 47 operates a toner replenishing switch 45. In Fig. 8 (not shown) the tube is pivoted on jewelled bearings. Arrangements are described for adjusting the biasing torque applied to the balancing system to select the density at which the developer must be held.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5880870A | 1970-07-28 | 1970-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1292243A true GB1292243A (en) | 1972-10-11 |
Family
ID=22019048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30105/71A Expired GB1292243A (en) | 1970-07-28 | 1971-06-28 | Mixture composition monitor |
Country Status (10)
Country | Link |
---|---|
US (1) | US3679099A (en) |
AU (1) | AU445534B2 (en) |
BE (1) | BE769322A (en) |
CA (1) | CA934807A (en) |
CH (1) | CH532272A (en) |
ES (1) | ES393662A1 (en) |
FR (1) | FR2098025A5 (en) |
GB (1) | GB1292243A (en) |
NL (1) | NL7109628A (en) |
SE (1) | SE356380B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4357901A (en) * | 1981-09-03 | 1982-11-09 | Bunnington Corporation | Method and system for magnetically sensing and controlling toner concentration and optical density of copies in electrostatic reproduction |
JP4181841B2 (en) * | 2002-10-02 | 2008-11-19 | キヤノン株式会社 | Image forming apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB729633A (en) * | 1950-03-28 | 1955-05-11 | Herman Lindars | Improvements in or relating to automatic feed apparatus |
US2852162A (en) * | 1952-12-10 | 1958-09-16 | Nauta Johannes Ewardus | Device for producing a vibrating movement to control the rate of material delivery |
US3137529A (en) * | 1961-10-31 | 1964-06-16 | Harper Inc Allen | Modulating feeder for transferring discrete materials from a primary conveyor to a secondary conveyor |
-
1970
- 1970-07-28 US US58808A patent/US3679099A/en not_active Expired - Lifetime
-
1971
- 1971-06-22 FR FR7123163A patent/FR2098025A5/fr not_active Expired
- 1971-06-22 CA CA116235A patent/CA934807A/en not_active Expired
- 1971-06-28 GB GB30105/71A patent/GB1292243A/en not_active Expired
- 1971-06-30 BE BE769322A patent/BE769322A/en unknown
- 1971-07-13 NL NL7109628A patent/NL7109628A/xx unknown
- 1971-07-13 AU AU31161/71A patent/AU445534B2/en not_active Expired
- 1971-07-16 CH CH1046671A patent/CH532272A/en not_active IP Right Cessation
- 1971-07-27 SE SE09639/71A patent/SE356380B/xx unknown
- 1971-07-27 ES ES393662A patent/ES393662A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2136835B2 (en) | 1976-03-18 |
AU3116171A (en) | 1973-01-18 |
SE356380B (en) | 1973-05-21 |
US3679099A (en) | 1972-07-25 |
BE769322A (en) | 1971-11-03 |
ES393662A1 (en) | 1973-08-16 |
FR2098025A5 (en) | 1972-03-03 |
AU445534B2 (en) | 1974-02-21 |
CH532272A (en) | 1972-12-31 |
CA934807A (en) | 1973-10-02 |
NL7109628A (en) | 1972-02-01 |
DE2136835A1 (en) | 1972-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |