GB1476677A – Toner dispensing system
– Google Patents
GB1476677A – Toner dispensing system
– Google Patents
Toner dispensing system
Info
Publication number
GB1476677A
GB1476677A
GB4996574A
GB4996574A
GB1476677A
GB 1476677 A
GB1476677 A
GB 1476677A
GB 4996574 A
GB4996574 A
GB 4996574A
GB 4996574 A
GB4996574 A
GB 4996574A
GB 1476677 A
GB1476677 A
GB 1476677A
Authority
GB
United Kingdom
Prior art keywords
sump
circuit
developing means
concentration control
toner concentration
Prior art date
1973-12-26
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
Application number
GB4996574A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date 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 date listed.)
1973-12-26
Filing date
1974-11-19
Publication date
1977-06-16
1974-11-19
Application filed by Xerox Corp
filed
Critical
Xerox Corp
1977-06-16
Publication of GB1476677A
publication
Critical
patent/GB1476677A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G03G15/0851—Detection or control means for the developer concentration the concentration being measured by electrical means
Abstract
1476677 Toner concentration control XEROX CORP 19 Nov 1974 [26 Dec 1973] 49965/74 Heading G2H A toner concentration control device comprises magnetic brush developing means 20 which collects developer from a sump 24, carries it past an electrically conductive trimmer bar 34 and in the process a circuit is completed, causing shorting, if insufficient toner particles, which are insulative, are present. A dispensing device is activated by the circuit when a given number of shorts is achieved in unit time. The time characteristics are adjustable using a variable resistor. Lifting unit 22 attracts particles from developing means 20 and returns them, via agitating baffles, to the sump 24.
GB4996574A
1973-12-26
1974-11-19
Toner dispensing system
Expired
GB1476677A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US428592A
US3893408A
(en)
1973-12-26
1973-12-26
Toner dispensing system
Publications (1)
Publication Number
Publication Date
GB1476677A
true
GB1476677A
(en)
1977-06-16
Family
ID=23699577
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4996574A
Expired
GB1476677A
(en)
1973-12-26
1974-11-19
Toner dispensing system
Country Status (4)
Country
Link
US
(1)
US3893408A
(en)
CA
(1)
CA1041593A
(en)
GB
(1)
GB1476677A
(en)
NL
(1)
NL7415076A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2144003A
(en)
*
1983-07-25
1985-02-20
Belco Pollution Control Corp
Power supply for electrostatic precipitator
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4200665A
(en)
*
1974-06-18
1980-04-29
Koichi Suzuki
Method for controlling the toner concentration of a developer used in a dry type developing system
US4112867A
(en)
*
1974-06-18
1978-09-12
Ricoh Company, Ltd.
Apparatus for controlling the toner concentration of a developer used in a dry type developing system
US3999119A
(en)
*
1975-03-26
1976-12-21
Xerox Corporation
Measuring toner concentration
US4076857A
(en)
*
1976-06-28
1978-02-28
Eastman Kodak Company
Process for developing electrographic images by causing electrical breakdown in the developer
JPS5349437A
(en)
*
1976-10-16
1978-05-04
Hitachi Ltd
Toner density detector
US4190018A
(en)
*
1979-02-02
1980-02-26
Pitney-Bowes, Inc.
Powder density control circuit for a photocopier
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
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3802381A
(en)
*
1968-07-30
1974-04-09
Continental Can Co
Apparatus for measuring concentration ratios of a mixture of materials
US3572551A
(en)
*
1969-03-27
1971-03-30
Rca Corp
Apparatus for monitoring and controlling the concentration of toner in a developer mix
BE757197A
(en)
*
1969-10-09
1971-03-16
Rca Corp
DEVICE FOR MONITORING AND ADJUSTING THE CONCENTRATION OF POWDER PARTICLES IN A MIXTURE OF POWDER AND MAGNETIC PARTICLES
NL7016420A
(en)
*
1969-11-11
1971-05-13
US3719165A
(en)
*
1971-09-03
1973-03-06
Eastman Kodak Co
Tuner concentration control apparatus
1973
1973-12-26
US
US428592A
patent/US3893408A/en
not_active
Expired – Lifetime
1974
1974-10-29
CA
CA212,580A
patent/CA1041593A/en
not_active
Expired
1974-11-19
NL
NL7415076A
patent/NL7415076A/en
unknown
1974-11-19
GB
GB4996574A
patent/GB1476677A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2144003A
(en)
*
1983-07-25
1985-02-20
Belco Pollution Control Corp
Power supply for electrostatic precipitator
Also Published As
Publication number
Publication date
US3893408A
(en)
1975-07-08
CA1041593A
(en)
1978-10-31
NL7415076A
(en)
1975-03-27
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ELECTRONIC DEVICE FOR ADJUSTING A DIRECT CURRENT.
Legal Events
Date
Code
Title
Description
1977-10-26
PS
Patent sealed [section 19, patents act 1949]
1980-06-11
746
Register noted ‘licences of right’ (sect. 46/1977)
1993-07-14
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19921119
