JPH0322991B2 - - Google Patents

Info

Publication number
JPH0322991B2
JPH0322991B2 JP58016333A JP1633383A JPH0322991B2 JP H0322991 B2 JPH0322991 B2 JP H0322991B2 JP 58016333 A JP58016333 A JP 58016333A JP 1633383 A JP1633383 A JP 1633383A JP H0322991 B2 JPH0322991 B2 JP H0322991B2
Authority
JP
Japan
Prior art keywords
photoconductor
toner
developer
voltage
magnitude
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
JP58016333A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58166367A (ja
Inventor
Guromuboon Ansonii
Uiriamu Uankuriibu Jooji
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS58166367A publication Critical patent/JPS58166367A/ja
Publication of JPH0322991B2 publication Critical patent/JPH0322991B2/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)
JP58016333A 1982-03-11 1983-02-04 電子写真再生機械中のトナ−濃度を維持する方法 Granted JPS58166367A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US357004 1982-03-11
US06/357,004 US4419010A (en) 1982-03-11 1982-03-11 Method for controlling the toner concentration in an electrostatic copier

Publications (2)

Publication Number Publication Date
JPS58166367A JPS58166367A (ja) 1983-10-01
JPH0322991B2 true JPH0322991B2 (OSRAM) 1991-03-28

Family

ID=23403898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58016333A Granted JPS58166367A (ja) 1982-03-11 1983-02-04 電子写真再生機械中のトナ−濃度を維持する方法

Country Status (2)

Country Link
US (1) US4419010A (OSRAM)
JP (1) JPS58166367A (OSRAM)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572661A (en) * 1982-08-30 1986-02-25 Monroe Systems For Business, Inc. Tester for a copier
JPH0640233B2 (ja) * 1984-04-13 1994-05-25 株式会社リコー 電子写真装置
US4712907A (en) * 1985-11-01 1987-12-15 Xerox Corporation Sequencing means for photocopying processes
JPS62283368A (ja) * 1986-05-30 1987-12-09 Konica Corp トナ−濃度制御装置
US4780744A (en) * 1987-02-18 1988-10-25 Eastman Kodak Company System for quality monitoring and control in an electrophotographic process
JPS63254476A (ja) * 1987-04-11 1988-10-21 Minolta Camera Co Ltd 電子写真複写機
JPH0339984A (ja) * 1990-06-01 1991-02-20 Konica Corp 静電記録装置
US5402214A (en) * 1994-02-23 1995-03-28 Xerox Corporation Toner concentration sensing system for an electrophotographic printer
US5581335A (en) * 1994-11-04 1996-12-03 Xerox Corporation Programmable toner concentration and temperature sensor interface method and apparatus
US5600409A (en) * 1996-02-20 1997-02-04 Xerox Corporation Optimal toner concentration sensing system for an electrophotographic printer
US8200106B2 (en) * 2009-06-11 2012-06-12 Canon Kabushiki Kaisha Image forming apparatus with image forming condition control feature based on difference in patch densities
US20120002985A1 (en) * 2010-06-30 2012-01-05 Toshiba Tec Kabushiki Kaisha Image Forming Apparatus and Method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178095A (en) * 1978-04-10 1979-12-11 International Business Machines Corporation Abnormally low reflectance photoconductor sensing system
US4312589A (en) * 1979-11-19 1982-01-26 International Business Machines Corporation Charge density control for an electrostatic copier
US4286866A (en) * 1980-02-01 1981-09-01 Pitney Bowes Inc. Bias voltage control for electrophotocopier magnetic brush
US4372672A (en) * 1980-12-22 1983-02-08 International Business Machines Corporation Self-triggering quality control sensor
JPS5860758A (ja) * 1981-10-07 1983-04-11 Ricoh Co Ltd 画像濃度制御方法

Also Published As

Publication number Publication date
US4419010A (en) 1983-12-06
JPS58166367A (ja) 1983-10-01

Similar Documents

Publication Publication Date Title
US4829336A (en) Toner concentration control method and apparatus
CA1159877A (en) Charge density control
JP2884526B2 (ja) 画像形成装置の画像制御方法
JPH02293766A (ja) ３レベルゼログラフィ用適応バイアス制御方法
JPH02127662A (ja) 画像濃度制御方法
JPH0322991B2 (OSRAM)
JP2738749B2 (ja) 画像形成装置
JPH04109278A (ja) 画像形成装置の転写前帯電装置
US5032870A (en) Electrophotographic apparatus
JPS59149377A (ja) 転写材の分離方式
JPS645291B2 (OSRAM)
JPS5912455A (ja) 電子複写機の画像濃度制御装置
JPS6348063B2 (OSRAM)
JP2854001B2 (ja) トナー濃度制御装置
JPH0683179A (ja) 電子写真装置
JP2514638B2 (ja) 画像形成装置の作像条件制御方法
US6034368A (en) AC corona current regulation
JP2801198B2 (ja) 画像濃度制御方法
US6311027B1 (en) Image-forming apparatus which forms images by using a developer
JPH04110970A (ja) 画像形成装置
JPS61167964A (ja) 複写機の自動画像濃度制御方法
JPS615263A (ja) 画像形成装置の濃度調整装置
JPS61232475A (ja) 複写機の自動画像濃度制御装置
JPH0697357B2 (ja) 画像形成装置
JPH02150864A (ja) 画像形成条件制御方法