CA1160278A - Toner concentration sensor - Google Patents

Toner concentration sensor

Info

Publication number
CA1160278A
CA1160278A CA000386768A CA386768A CA1160278A CA 1160278 A CA1160278 A CA 1160278A CA 000386768 A CA000386768 A CA 000386768A CA 386768 A CA386768 A CA 386768A CA 1160278 A CA1160278 A CA 1160278A
Authority
CA
Canada
Prior art keywords
lens
photoreceptor surface
light
beam splitter
led
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
CA000386768A
Other languages
English (en)
French (fr)
Inventor
Demetris E. Paraskevopoulos
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.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of CA1160278A publication Critical patent/CA1160278A/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
    • G03G15/50—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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
CA000386768A 1980-10-21 1981-09-28 Toner concentration sensor Expired CA1160278A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19899380A 1980-10-21 1980-10-21
US198,993 1980-10-21

Publications (1)

Publication Number Publication Date
CA1160278A true CA1160278A (en) 1984-01-10

Family

ID=22735766

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000386768A Expired CA1160278A (en) 1980-10-21 1981-09-28 Toner concentration sensor

Country Status (6)

Country Link
EP (1) EP0050528B1 (es)
JP (1) JPS5797429A (es)
BR (1) BR8106703A (es)
CA (1) CA1160278A (es)
DE (1) DE3173272D1 (es)
MX (1) MX149815A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7327034B2 (ja) * 2019-09-19 2023-08-16 オムロン株式会社 トナー濃度センサおよび画像形成装置
JP7283326B2 (ja) * 2019-09-19 2023-05-30 オムロン株式会社 トナー濃度センサおよび画像形成装置
CN112630375B (zh) * 2020-07-31 2022-03-29 南通贝得彩色印刷有限公司 一种彩色印刷装置的环保检测方法和装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765654A (en) * 1968-10-17 1973-10-16 Continental Can Co System for measuring and controlling mixture content
NL7210356A (es) * 1971-08-06 1973-02-08
FR2213490B1 (es) * 1972-11-16 1975-03-28 Cometa
US3926145A (en) * 1974-03-04 1975-12-16 Honeywell Inf Systems Toner concentration detector
US4026643A (en) * 1975-08-22 1977-05-31 Xerox Corporation Apparatus and method for measurement of the ratio of toner particle electrostatic charge to toner particle mass in electrostatographic devices

Also Published As

Publication number Publication date
BR8106703A (pt) 1982-07-06
EP0050528A2 (en) 1982-04-28
MX149815A (es) 1983-12-26
JPS5797429A (en) 1982-06-17
DE3173272D1 (en) 1986-01-30
EP0050528A3 (en) 1982-06-02
EP0050528B1 (en) 1985-12-18

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Legal Events

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