JPS5233734A - Device for detecting and controlling density - Google Patents
Device for detecting and controlling densityInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5081582A (en) * | 1973-11-21 | 1975-07-02 |
-
1975
- 1975-09-10 JP JP50109809A patent/JPS5233734A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5081582A (en) * | 1973-11-21 | 1975-07-02 |
Cited By (20)
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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