JPH0418304B2 - - Google Patents

Info

Publication number
JPH0418304B2
JPH0418304B2 JP57001399A JP139982A JPH0418304B2 JP H0418304 B2 JPH0418304 B2 JP H0418304B2 JP 57001399 A JP57001399 A JP 57001399A JP 139982 A JP139982 A JP 139982A JP H0418304 B2 JPH0418304 B2 JP H0418304B2
Authority
JP
Japan
Prior art keywords
amount
original
reflected light
leading edge
predetermined value
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
JP57001399A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58118662A (ja
Inventor
Minoru Aoki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP57001399A priority Critical patent/JPS58118662A/ja
Publication of JPS58118662A publication Critical patent/JPS58118662A/ja
Publication of JPH0418304B2 publication Critical patent/JPH0418304B2/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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5025—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 original characteristics, e.g. contrast, density

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
JP57001399A 1982-01-08 1982-01-08 画像制御装置 Granted JPS58118662A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57001399A JPS58118662A (ja) 1982-01-08 1982-01-08 画像制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57001399A JPS58118662A (ja) 1982-01-08 1982-01-08 画像制御装置

Publications (2)

Publication Number Publication Date
JPS58118662A JPS58118662A (ja) 1983-07-14
JPH0418304B2 true JPH0418304B2 (ar) 1992-03-27

Family

ID=11500408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57001399A Granted JPS58118662A (ja) 1982-01-08 1982-01-08 画像制御装置

Country Status (1)

Country Link
JP (1) JPS58118662A (ar)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58209755A (ja) * 1982-05-31 1983-12-06 Canon Inc 画像形成方法
JPS6035752A (ja) * 1983-08-06 1985-02-23 Canon Inc 画像制御装置
JPS60112073A (ja) * 1983-11-22 1985-06-18 Matsushita Electric Ind Co Ltd 電子写真複写機
JPS60257457A (ja) * 1984-06-05 1985-12-19 Fuji Xerox Co Ltd 自動濃度調整の制御方法
JPS61201263A (ja) * 1985-03-04 1986-09-05 Fuji Xerox Co Ltd 乾式電子写真複写機における自動画像濃度制御装置
JPH0524923Y2 (ar) * 1985-07-22 1993-06-24
US5363174A (en) * 1993-12-20 1994-11-08 Xerox Corporation Method and apparatus for background control in an electrostatographic printing machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535635A (en) * 1976-07-05 1978-01-19 Canon Inc Process and device for controlling image density
JPS543546A (en) * 1977-06-10 1979-01-11 Canon Inc Exposure device
JPS5462833A (en) * 1977-10-28 1979-05-21 Canon Inc Controlling method of original exposure
JPS54153038A (en) * 1978-05-23 1979-12-01 Minolta Camera Co Ltd Automatic exposure control device of electrophoto graphic copier
JPS5667856A (en) * 1979-11-07 1981-06-08 Konishiroku Photo Ind Co Ltd Ground color detector of original in copying machine
JPS56101157A (en) * 1979-10-22 1981-08-13 Nashua Corp Automatic bias and match control unit for electrophotographic copier
JPS56110961A (en) * 1980-02-07 1981-09-02 Toshiba Corp Exposure device of electrophotographic copier
JPS56156841A (en) * 1980-05-09 1981-12-03 Toshiba Corp Electronic copying machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535635A (en) * 1976-07-05 1978-01-19 Canon Inc Process and device for controlling image density
JPS543546A (en) * 1977-06-10 1979-01-11 Canon Inc Exposure device
JPS5462833A (en) * 1977-10-28 1979-05-21 Canon Inc Controlling method of original exposure
JPS54153038A (en) * 1978-05-23 1979-12-01 Minolta Camera Co Ltd Automatic exposure control device of electrophoto graphic copier
JPS56101157A (en) * 1979-10-22 1981-08-13 Nashua Corp Automatic bias and match control unit for electrophotographic copier
JPS5667856A (en) * 1979-11-07 1981-06-08 Konishiroku Photo Ind Co Ltd Ground color detector of original in copying machine
JPS56110961A (en) * 1980-02-07 1981-09-02 Toshiba Corp Exposure device of electrophotographic copier
JPS56156841A (en) * 1980-05-09 1981-12-03 Toshiba Corp Electronic copying machine

Also Published As

Publication number Publication date
JPS58118662A (ja) 1983-07-14

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