GB2002928B - Toner concentration monitoring - Google Patents

Toner concentration monitoring

Info

Publication number
GB2002928B
GB2002928B GB7831776A GB7831776A GB2002928B GB 2002928 B GB2002928 B GB 2002928B GB 7831776 A GB7831776 A GB 7831776A GB 7831776 A GB7831776 A GB 7831776A GB 2002928 B GB2002928 B GB 2002928B
Authority
GB
United Kingdom
Prior art keywords
toner concentration
concentration monitoring
monitoring
toner
concentration
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
Application number
GB7831776A
Other versions
GB2002928A (en
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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.)
Filing date
Publication date
Priority claimed from US05/820,270 external-priority patent/US4141645A/en
Priority claimed from US05/882,722 external-priority patent/US4155638A/en
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB2002928A publication Critical patent/GB2002928A/en
Application granted granted Critical
Publication of GB2002928B publication Critical patent/GB2002928B/en
Expired legal-status Critical Current

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
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
GB7831776A 1977-07-29 1978-07-31 Toner concentration monitoring Expired GB2002928B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/820,270 US4141645A (en) 1977-07-29 1977-07-29 Toner concentration monitor
US05/882,722 US4155638A (en) 1978-03-02 1978-03-02 Toner concentration monitor

Publications (2)

Publication Number Publication Date
GB2002928A GB2002928A (en) 1979-02-28
GB2002928B true GB2002928B (en) 1982-01-06

Family

ID=27124437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831776A Expired GB2002928B (en) 1977-07-29 1978-07-31 Toner concentration monitoring

Country Status (2)

Country Link
JP (1) JPS5426745A (en)
GB (1) GB2002928B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086594B1 (en) * 1982-02-16 1989-04-19 Xerox Corporation Apparatus for sensing electrostatically charged particles
GB2119969B (en) * 1982-03-18 1986-01-08 Konishiroku Photo Ind Toner supply controlling device in reproducing apparatus
GB2126753B (en) * 1982-09-07 1986-05-21 Marshall Fowler Load control relay
US4506973A (en) * 1983-06-20 1985-03-26 Eastman Kodak Company Toner concentration monitoring apparatus located behind a transparent photoconductor
DE3376890D1 (en) * 1983-11-01 1988-07-07 Agfa-Gevaert Naamloze Vennootschap
US6941084B2 (en) * 2003-06-26 2005-09-06 Xerox Corporation Compensating optical measurements of toner concentration for toner impaction

Also Published As

Publication number Publication date
GB2002928A (en) 1979-02-28
JPS5426745A (en) 1979-02-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee