JPS5740279A - Image stabilization method - Google Patents

Image stabilization method

Info

Publication number
JPS5740279A
JPS5740279A JP55115169A JP11516980A JPS5740279A JP S5740279 A JPS5740279 A JP S5740279A JP 55115169 A JP55115169 A JP 55115169A JP 11516980 A JP11516980 A JP 11516980A JP S5740279 A JPS5740279 A JP S5740279A
Authority
JP
Japan
Prior art keywords
density
developed
image
development
light
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.)
Granted
Application number
JP55115169A
Other languages
Japanese (ja)
Other versions
JPS645291B2 (en
Inventor
Hatsuo Tajima
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP55115169A priority Critical patent/JPS5740279A/en
Publication of JPS5740279A publication Critical patent/JPS5740279A/en
Publication of JPS645291B2 publication Critical patent/JPS645291B2/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
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To stably obtain an image having an adequate density at all times, by measuring the density of a developed image based on a standard exposure, and controlling the development AC bias voltage for giving a density reference value. CONSTITUTION:Latent images corresponding to light and dark parts are formed on a photoreceptor 1 by a standard exposure by use of a regular exposure light path 5, and brought to a developing treatment by a development means 6, and become a developed images. Reflected rays corresponding to the density of the developed image of said light and dark parts are detected by a detector 21 of a photocell, etc. consisting of CdS, etc., and a developed density measuring device 22 generates voltages according to the developed density. Subsequently, a developing bias power source 27 is controlled by deciding the development AC bias voltage for giving a reference density value by which the voltage according to the developed density is set in a prescribed range by a control device 24, etc. synchronizing with the photoreceptor 1 through a pulse generator 25, etc. Accordingly, an image having an adequate density is formed stably at all times without being influenced by time aging, etc.
JP55115169A 1980-08-21 1980-08-21 Image stabilization method Granted JPS5740279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115169A JPS5740279A (en) 1980-08-21 1980-08-21 Image stabilization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115169A JPS5740279A (en) 1980-08-21 1980-08-21 Image stabilization method

Publications (2)

Publication Number Publication Date
JPS5740279A true JPS5740279A (en) 1982-03-05
JPS645291B2 JPS645291B2 (en) 1989-01-30

Family

ID=14656044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115169A Granted JPS5740279A (en) 1980-08-21 1980-08-21 Image stabilization method

Country Status (1)

Country Link
JP (1) JPS5740279A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080871A (en) * 1983-10-08 1985-05-08 Canon Inc Device for controlling electrifying potential of electrophotographic device
JPS60131555A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPS60131576A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Image adjusting method
JPS60260067A (en) * 1984-06-06 1985-12-23 Canon Inc Controlling method of electrophotography
JPS60260066A (en) * 1984-06-06 1985-12-23 Canon Inc Controlling method of electrophotography
JPS61254961A (en) * 1985-05-07 1986-11-12 Canon Inc Color image forming device
JP2008166095A (en) * 2006-12-28 2008-07-17 Origin Electric Co Ltd Inter-board connector and electric circuit device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080871A (en) * 1983-10-08 1985-05-08 Canon Inc Device for controlling electrifying potential of electrophotographic device
JPS60131555A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPS60131576A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Image adjusting method
JPH0451027B2 (en) * 1983-12-20 1992-08-17 Konishiroku Photo Ind
JPS60260067A (en) * 1984-06-06 1985-12-23 Canon Inc Controlling method of electrophotography
JPS60260066A (en) * 1984-06-06 1985-12-23 Canon Inc Controlling method of electrophotography
JPS61254961A (en) * 1985-05-07 1986-11-12 Canon Inc Color image forming device
JP2008166095A (en) * 2006-12-28 2008-07-17 Origin Electric Co Ltd Inter-board connector and electric circuit device

Also Published As

Publication number Publication date
JPS645291B2 (en) 1989-01-30

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