JPH0440708B2 - - Google Patents

Info

Publication number
JPH0440708B2
JPH0440708B2 JP55067089A JP6708980A JPH0440708B2 JP H0440708 B2 JPH0440708 B2 JP H0440708B2 JP 55067089 A JP55067089 A JP 55067089A JP 6708980 A JP6708980 A JP 6708980A JP H0440708 B2 JPH0440708 B2 JP H0440708B2
Authority
JP
Japan
Prior art keywords
density
image
circuit
reference target
toner
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 - Lifetime
Application number
JP55067089A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56164353A (en
Inventor
Masaaki Tanaka
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP6708980A priority Critical patent/JPS56164353A/ja
Publication of JPS56164353A publication Critical patent/JPS56164353A/ja
Publication of JPH0440708B2 publication Critical patent/JPH0440708B2/ja
Granted 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)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
JP6708980A 1980-05-22 1980-05-22 Image density detector of electrophotographic copying machine Granted JPS56164353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6708980A JPS56164353A (en) 1980-05-22 1980-05-22 Image density detector of electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6708980A JPS56164353A (en) 1980-05-22 1980-05-22 Image density detector of electrophotographic copying machine

Publications (2)

Publication Number Publication Date
JPS56164353A JPS56164353A (en) 1981-12-17
JPH0440708B2 true JPH0440708B2 (xx) 1992-07-03

Family

ID=13334802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6708980A Granted JPS56164353A (en) 1980-05-22 1980-05-22 Image density detector of electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS56164353A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814845A (ja) * 1981-07-20 1983-01-27 Canon Inc 電位検出方法
JPS59136754A (ja) * 1983-01-26 1984-08-06 Canon Inc 画像形成装置
JPS60260067A (ja) * 1984-06-06 1985-12-23 Canon Inc 電子写真の制御方法
JP5712184B2 (ja) * 2012-10-19 2015-05-07 京セラドキュメントソリューションズ株式会社 画像形成装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183657A (en) * 1978-04-10 1980-01-15 International Business Machines Corporation Dynamic reference for an image quality control system
CA1128114A (en) * 1978-04-10 1982-07-20 Clement C. Wilson Test cycle quality control system for an electrophotographic machine

Also Published As

Publication number Publication date
JPS56164353A (en) 1981-12-17

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