JPS5233734A - Device for detecting and controlling density - Google Patents

Device for detecting and controlling density

Info

Publication number
JPS5233734A
JPS5233734A JP50109809A JP10980975A JPS5233734A JP S5233734 A JPS5233734 A JP S5233734A JP 50109809 A JP50109809 A JP 50109809A JP 10980975 A JP10980975 A JP 10980975A JP S5233734 A JPS5233734 A JP S5233734A
Authority
JP
Japan
Prior art keywords
density
detecting
controlling density
controlling
pattern
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
JP50109809A
Other languages
Japanese (ja)
Inventor
Susumu Sugiura
Hidejiro Kadowaki
Naoki Iwami
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 JP50109809A priority Critical patent/JPS5233734A/en
Publication of JPS5233734A publication Critical patent/JPS5233734A/en
Pending legal-status Critical Current

Links

Landscapes

  • Wet Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To detect a stable density and automatically control the density by detecting a standard density pattern and a real density pattern of a developer in succession oralternately and controlling the reduction of density.
JP50109809A 1975-09-10 1975-09-10 Device for detecting and controlling density Pending JPS5233734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50109809A JPS5233734A (en) 1975-09-10 1975-09-10 Device for detecting and controlling density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50109809A JPS5233734A (en) 1975-09-10 1975-09-10 Device for detecting and controlling density

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10908481A Division JPS5744167A (en) 1981-07-13 1981-07-13 Developing agent concentration detector

Publications (1)

Publication Number Publication Date
JPS5233734A true JPS5233734A (en) 1977-03-15

Family

ID=14519740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50109809A Pending JPS5233734A (en) 1975-09-10 1975-09-10 Device for detecting and controlling density

Country Status (1)

Country Link
JP (1) JPS5233734A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143643U (en) * 1977-04-18 1978-11-13
JPS546561A (en) * 1977-06-16 1979-01-18 Toshiba Corp Developer concentration controller
JPS5497044A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Toner concentration controller for zerographic copier
US4279498A (en) * 1978-12-28 1981-07-21 Ricoh Company, Ltd. Electrostatographic copying apparatus with automatic toner density control
JPS56104358A (en) * 1980-01-22 1981-08-20 Matsushita Electric Ind Co Ltd Electrophotographic copier
JPS56128656U (en) * 1980-03-03 1981-09-30
JPS56128964A (en) * 1980-12-12 1981-10-08 Konishiroku Photo Ind Co Ltd Copy-density control and paper jam detection device
JPS56128977A (en) * 1980-12-12 1981-10-08 Konishiroku Photo Ind Co Ltd Control method for copying density
US4572654A (en) * 1981-11-17 1986-02-25 Ricoh Company, Ltd. Image density control method for electrophotography
US5121163A (en) * 1989-07-31 1992-06-09 Canon Kabushiki Kaisha Transfer type image forming apparatus with toner content detection
JP2006220889A (en) * 2005-02-10 2006-08-24 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method
JP2006251130A (en) * 2005-03-09 2006-09-21 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method
JP2006251129A (en) * 2005-03-09 2006-09-21 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081582A (en) * 1973-11-21 1975-07-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081582A (en) * 1973-11-21 1975-07-02

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143643U (en) * 1977-04-18 1978-11-13
JPS56275Y2 (en) * 1977-04-18 1981-01-07
JPS546561A (en) * 1977-06-16 1979-01-18 Toshiba Corp Developer concentration controller
JPS563552B2 (en) * 1977-06-16 1981-01-26
JPS5497044A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Toner concentration controller for zerographic copier
JPS6253825B2 (en) * 1978-01-17 1987-11-12 Konishiroku Photo Ind
US4279498A (en) * 1978-12-28 1981-07-21 Ricoh Company, Ltd. Electrostatographic copying apparatus with automatic toner density control
JPS56104358A (en) * 1980-01-22 1981-08-20 Matsushita Electric Ind Co Ltd Electrophotographic copier
JPS6318747B2 (en) * 1980-01-22 1988-04-20 Matsushita Electric Ind Co Ltd
JPS56128656U (en) * 1980-03-03 1981-09-30
JPS6312353Y2 (en) * 1980-03-03 1988-04-08
JPS56128964A (en) * 1980-12-12 1981-10-08 Konishiroku Photo Ind Co Ltd Copy-density control and paper jam detection device
JPS56128977A (en) * 1980-12-12 1981-10-08 Konishiroku Photo Ind Co Ltd Control method for copying density
JPH0113101B2 (en) * 1980-12-12 1989-03-03 Konishiroku Photo Ind
US4572654A (en) * 1981-11-17 1986-02-25 Ricoh Company, Ltd. Image density control method for electrophotography
US5121163A (en) * 1989-07-31 1992-06-09 Canon Kabushiki Kaisha Transfer type image forming apparatus with toner content detection
JP2006220889A (en) * 2005-02-10 2006-08-24 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method
JP2006251130A (en) * 2005-03-09 2006-09-21 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method
JP2006251129A (en) * 2005-03-09 2006-09-21 Seiko Epson Corp Liquid toner concentration detecting device, image forming apparatus using the same and concentration control method
JP4702524B2 (en) * 2005-03-09 2011-06-15 セイコーエプソン株式会社 Liquid developing device and image forming apparatus

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