JPS5499632A - Image adjusting method of copying machines - Google Patents

Image adjusting method of copying machines

Info

Publication number
JPS5499632A
JPS5499632A JP632678A JP632678A JPS5499632A JP S5499632 A JPS5499632 A JP S5499632A JP 632678 A JP632678 A JP 632678A JP 632678 A JP632678 A JP 632678A JP S5499632 A JPS5499632 A JP S5499632A
Authority
JP
Japan
Prior art keywords
light
regulating member
copying
detected
exposure
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
JP632678A
Other languages
Japanese (ja)
Inventor
Koji Sakamoto
Nobuo Mochizuki
Yukio Tabata
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 JP632678A priority Critical patent/JPS5499632A/en
Publication of JPS5499632A publication Critical patent/JPS5499632A/en
Pending legal-status Critical Current

Links

Landscapes

  • Developing For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To achieve the improvement in quality by performing development bias voltage controlling concerning the latent images having been formed photoreceptor at the detecting of the ground density of the original and performing exposure controlling concerning with the subsequent latent images. CONSTITUTION:At the copying of the first sheet, the quantity of light obtainable in correspondence to the ground density of the original from said original is detected with a light quantity detector 8 and is transmitted to a voltage regulating member 11 by way of a control member 12. The voltage regulating member 11 applies a development bias voltage corresponding to the detected quantity of light to a developing part 4 perform bias voltage controlling of the latent images. At the copying of the second sheet, the detected quantity of light having been detected for copying the first sheet is transmitted to an exposure regulating member 9 via control member 12 and the exposure regulating member 9 regulates the optical path so that the exposure of the second and subsequent sheets becomes the detected quantity of light. On the other hand, the voltage regulating member 11 sets the development bias voltage adapted to the developing part 4 at a preset constant voltage, then the copying of the second and subsequent sheets forms superior images.
JP632678A 1978-01-24 1978-01-24 Image adjusting method of copying machines Pending JPS5499632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP632678A JPS5499632A (en) 1978-01-24 1978-01-24 Image adjusting method of copying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP632678A JPS5499632A (en) 1978-01-24 1978-01-24 Image adjusting method of copying machines

Publications (1)

Publication Number Publication Date
JPS5499632A true JPS5499632A (en) 1979-08-06

Family

ID=11635233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP632678A Pending JPS5499632A (en) 1978-01-24 1978-01-24 Image adjusting method of copying machines

Country Status (1)

Country Link
JP (1) JPS5499632A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181568A (en) * 1981-05-02 1982-11-09 Minolta Camera Co Ltd Electrophotographic copying machine
US4390266A (en) * 1980-02-07 1983-06-28 Tokyo Shibaura Denki Kabushiki Kaisha Exposure apparatus for electronic duplicator
JPS6010268A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPS6010267A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPS6010269A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPS6035751A (en) * 1983-08-06 1985-02-23 Canon Inc Image control device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390266A (en) * 1980-02-07 1983-06-28 Tokyo Shibaura Denki Kabushiki Kaisha Exposure apparatus for electronic duplicator
JPS57181568A (en) * 1981-05-02 1982-11-09 Minolta Camera Co Ltd Electrophotographic copying machine
JPH031664B2 (en) * 1981-05-02 1991-01-11 Minolta Camera Kk
JPS6010268A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPS6010267A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPS6010269A (en) * 1983-06-30 1985-01-19 Canon Inc Image processor
JPH0532748B2 (en) * 1983-06-30 1993-05-17 Canon Kk
JPH0555867B2 (en) * 1983-06-30 1993-08-18 Canon Kk
JPH0555868B2 (en) * 1983-06-30 1993-08-18 Canon Kk
JPS6035751A (en) * 1983-08-06 1985-02-23 Canon Inc Image control device
JPH0555872B2 (en) * 1983-08-06 1993-08-18 Canon Kk

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