JPS5667856A - Ground color detector of original in copying machine - Google Patents
Ground color detector of original in copying machineInfo
- Publication number
- JPS5667856A JPS5667856A JP14394979A JP14394979A JPS5667856A JP S5667856 A JPS5667856 A JP S5667856A JP 14394979 A JP14394979 A JP 14394979A JP 14394979 A JP14394979 A JP 14394979A JP S5667856 A JPS5667856 A JP S5667856A
- Authority
- JP
- Japan
- Prior art keywords
- original
- circuits
- colors
- bias voltage
- developing bias
- 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.)
- Granted
Links
Landscapes
- Control Of Exposure In Printing And Copying (AREA)
- Control Or Security For Electrophotography (AREA)
- Developing For Electrophotography (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14394979A JPS5667856A (en) | 1979-11-07 | 1979-11-07 | Ground color detector of original in copying machine |
DE3040366A DE3040366C2 (de) | 1979-10-29 | 1980-10-25 | Einrichtung zum Regeln der Belichtung oder Entwicklung in einem Kopiergerät beim Herstellen von Kopien mit weißem Untergrund von farbigen Vorlagen |
US06/200,977 US4372674A (en) | 1979-10-29 | 1980-10-27 | Copying machine having detectors for the background color and density of the original |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14394979A JPS5667856A (en) | 1979-11-07 | 1979-11-07 | Ground color detector of original in copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667856A true JPS5667856A (en) | 1981-06-08 |
JPH0236948B2 JPH0236948B2 (ko) | 1990-08-21 |
Family
ID=15350791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14394979A Granted JPS5667856A (en) | 1979-10-29 | 1979-11-07 | Ground color detector of original in copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667856A (ko) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118662A (ja) * | 1982-01-08 | 1983-07-14 | Ricoh Co Ltd | 画像制御装置 |
JPS59135482A (ja) * | 1983-01-22 | 1984-08-03 | Canon Inc | 画像形成装置 |
JPS6010267A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPS6010269A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPS6010268A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPS60112058A (ja) * | 1983-11-22 | 1985-06-18 | Matsushita Electric Ind Co Ltd | 電子写真複写機 |
-
1979
- 1979-11-07 JP JP14394979A patent/JPS5667856A/ja active Granted
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118662A (ja) * | 1982-01-08 | 1983-07-14 | Ricoh Co Ltd | 画像制御装置 |
JPH0418304B2 (ko) * | 1982-01-08 | 1992-03-27 | Ricoh Kk | |
JPS59135482A (ja) * | 1983-01-22 | 1984-08-03 | Canon Inc | 画像形成装置 |
JPS6010267A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPS6010269A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPS6010268A (ja) * | 1983-06-30 | 1985-01-19 | Canon Inc | 像形成装置 |
JPH0532748B2 (ko) * | 1983-06-30 | 1993-05-17 | Canon Kk | |
JPH0555867B2 (ko) * | 1983-06-30 | 1993-08-18 | Canon Kk | |
JPH0555868B2 (ko) * | 1983-06-30 | 1993-08-18 | Canon Kk | |
JPS60112058A (ja) * | 1983-11-22 | 1985-06-18 | Matsushita Electric Ind Co Ltd | 電子写真複写機 |
Also Published As
Publication number | Publication date |
---|---|
JPH0236948B2 (ko) | 1990-08-21 |
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