JPS56128977A - Control method for copying density - Google Patents

Control method for copying density

Info

Publication number
JPS56128977A
JPS56128977A JP17630280A JP17630280A JPS56128977A JP S56128977 A JPS56128977 A JP S56128977A JP 17630280 A JP17630280 A JP 17630280A JP 17630280 A JP17630280 A JP 17630280A JP S56128977 A JPS56128977 A JP S56128977A
Authority
JP
Japan
Prior art keywords
picture
toner density
area
control
constitution
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.)
Pending
Application number
JP17630280A
Other languages
Japanese (ja)
Inventor
Fumio Iwai
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP17630280A priority Critical patent/JPS56128977A/en
Publication of JPS56128977A publication Critical patent/JPS56128977A/en
Pending 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)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To exercies secure control over the density with miniature constitution by forming a standard image for controlling toner density in a prescribed region of a photoreceptor. CONSTITUTION:On photoreceptor drum 1, a latent image is formed by reference image exposure to an area outside of a picture area in the moving direction of drum 1 in the picture area and then developed to form toner density control picture 22. The reflected light that corresponds to the toner density of this picture 22 is detected by light emitting and photodetecting elements 20 and 21 to control the toner density. Then, the toner density is securely controlled with the miniature constitution with the control picture obtained by forming and developing the latent image under the same conditions with a copy picture provided in an area where the copy picture is to be formed, so that the copy picture of good quality can be formed.
JP17630280A 1980-12-12 1980-12-12 Control method for copying density Pending JPS56128977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17630280A JPS56128977A (en) 1980-12-12 1980-12-12 Control method for copying density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17630280A JPS56128977A (en) 1980-12-12 1980-12-12 Control method for copying density

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12915077A Division JPS5461938A (en) 1977-10-27 1977-10-27 Copy concentration controller/paper clogging detector

Publications (1)

Publication Number Publication Date
JPS56128977A true JPS56128977A (en) 1981-10-08

Family

ID=16011205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17630280A Pending JPS56128977A (en) 1980-12-12 1980-12-12 Control method for copying density

Country Status (1)

Country Link
JP (1) JPS56128977A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022642A (en) * 1973-06-28 1975-03-11
JPS5233734A (en) * 1975-09-10 1977-03-15 Canon Inc Device for detecting and controlling density

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022642A (en) * 1973-06-28 1975-03-11
JPS5233734A (en) * 1975-09-10 1977-03-15 Canon Inc Device for detecting and controlling density

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