GB2086077B - An automatic image quality adjusting device in a copying machine - Google Patents
An automatic image quality adjusting device in a copying machineInfo
- Publication number
- GB2086077B GB2086077B GB8126227A GB8126227A GB2086077B GB 2086077 B GB2086077 B GB 2086077B GB 8126227 A GB8126227 A GB 8126227A GB 8126227 A GB8126227 A GB 8126227A GB 2086077 B GB2086077 B GB 2086077B
- Authority
- GB
- United Kingdom
- Prior art keywords
- image quality
- adjusting device
- copying machine
- automatic image
- quality adjusting
- 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
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N21/5911—Densitometers of the scanning type
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/065—Arrangements for controlling the potential of the developing electrode
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Or Security For Electrophotography (AREA)
- Developing For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Image Signal Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55120623A JPS5745564A (en) | 1980-09-02 | 1980-09-02 | Automatic image quality adjuster in copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2086077A GB2086077A (en) | 1982-05-06 |
GB2086077B true GB2086077B (en) | 1985-07-03 |
Family
ID=14790805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8126227A Expired GB2086077B (en) | 1980-09-02 | 1981-08-27 | An automatic image quality adjusting device in a copying machine |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5745564A (de) |
DE (1) | DE3134782A1 (de) |
GB (1) | GB2086077B (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58189667A (ja) * | 1982-04-28 | 1983-11-05 | Canon Inc | 画像形成装置 |
JPS58200229A (ja) * | 1982-05-18 | 1983-11-21 | Copyer Co Ltd | ジアゾ複写機の制御装置 |
JPS58208739A (ja) * | 1982-05-31 | 1983-12-05 | Canon Inc | 画像形成装置 |
JPS5910966A (ja) * | 1982-07-12 | 1984-01-20 | Fujitsu Ltd | 現像装置 |
JPS5913232A (ja) * | 1982-07-15 | 1984-01-24 | Canon Inc | 複写装置 |
JPS5995549A (ja) * | 1982-11-25 | 1984-06-01 | Konishiroku Photo Ind Co Ltd | 複写機の画像制御方法および装置 |
JPS59133571A (ja) * | 1983-01-21 | 1984-07-31 | Canon Inc | 複写装置 |
JPS59198471A (ja) * | 1983-04-26 | 1984-11-10 | Canon Inc | 複写装置 |
JPS59228262A (ja) * | 1983-06-08 | 1984-12-21 | Minolta Camera Co Ltd | 複写機における画像濃度制御装置 |
JPS6019164A (ja) * | 1983-07-13 | 1985-01-31 | Canon Inc | 画像処理装置 |
JPS6035752A (ja) * | 1983-08-06 | 1985-02-23 | Canon Inc | 画像制御装置 |
JPS6053965A (ja) * | 1983-09-05 | 1985-03-28 | Canon Inc | 画像記録制御装置 |
JPS60112073A (ja) * | 1983-11-22 | 1985-06-18 | Matsushita Electric Ind Co Ltd | 電子写真複写機 |
JPS60173561A (ja) * | 1984-02-20 | 1985-09-06 | Konishiroku Photo Ind Co Ltd | 複写装置 |
DE3577362D1 (de) * | 1984-02-20 | 1990-05-31 | Konishiroku Photo Ind | Verfahren zur feststellung der bilddichte einer vorlage und deren kopierung. |
JPS60173564A (ja) * | 1984-02-20 | 1985-09-06 | Konishiroku Photo Ind Co Ltd | 複写装置 |
JPS60173562A (ja) * | 1984-02-20 | 1985-09-06 | Konishiroku Photo Ind Co Ltd | 複写装置 |
JPS60173563A (ja) * | 1984-02-20 | 1985-09-06 | Konishiroku Photo Ind Co Ltd | 複写装置 |
JPS60257458A (ja) * | 1984-06-05 | 1985-12-19 | Fuji Xerox Co Ltd | コピ−濃度表示装置 |
JPS6157960A (ja) * | 1984-08-29 | 1986-03-25 | Minolta Camera Co Ltd | 複写機の測光装置 |
JPS6161142A (ja) * | 1984-08-31 | 1986-03-28 | Sharp Corp | 露光調整装置 |
JPS6163864A (ja) * | 1984-09-04 | 1986-04-02 | Konishiroku Photo Ind Co Ltd | 自動画像濃度調整装置 |
JPS6180274A (ja) * | 1984-09-28 | 1986-04-23 | Mita Ind Co Ltd | 自動露光複写機の自動露光状態表示方法 |
JPS61103169A (ja) * | 1984-10-26 | 1986-05-21 | Canon Inc | 画像形成装置 |
JPS61126575A (ja) * | 1984-11-26 | 1986-06-14 | Mita Ind Co Ltd | 自動露光複写機の温度補正方法 |
US4731662A (en) * | 1985-03-21 | 1988-03-15 | Canon Kabushiki Kaisha | Image processing method for processing an image signal differently depending on the range of an image characteristic thereof relative to the range within which an output device can reproduce the image characteristic |
JPS6223070A (ja) * | 1985-07-24 | 1987-01-31 | Mita Ind Co Ltd | 半導体レ−ザ制御装置 |
JPS62139543A (ja) * | 1985-12-13 | 1987-06-23 | Minolta Camera Co Ltd | 複写機 |
JPS6329772A (ja) * | 1986-07-23 | 1988-02-08 | Canon Inc | 画像形成装置 |
JP2647398B2 (ja) * | 1987-12-09 | 1997-08-27 | キヤノン株式会社 | 画像信号処理装置 |
DE68910357T2 (de) * | 1988-03-29 | 1994-05-19 | Sharp Kk | Bildverarbeitungsgerät. |
US5136341A (en) * | 1988-05-31 | 1992-08-04 | Mita Industrial Co. Ltd. | Image forming apparatus having means for coordinating the input and discharge of copy paper |
JP2575843B2 (ja) * | 1988-10-13 | 1997-01-29 | 富士写真フイルム株式会社 | 画像入出力システム及び信号処理条件の自動設定方法 |
US5198859A (en) * | 1990-06-13 | 1993-03-30 | Konica Corporation | Document information detecting device for a copying machine |
JP3164744B2 (ja) * | 1994-12-21 | 2001-05-08 | 株式会社東芝 | 画像形成装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2406191C2 (de) * | 1974-02-08 | 1985-02-28 | Gretag AG, Regensdorf, Zürich | Verfahren zur Steuerung der Belichtung bei der Herstellung von fotografischen Kopien |
JPS5913011B2 (ja) * | 1974-06-21 | 1984-03-27 | 富士写真フイルム株式会社 | 写真焼付露光量制御方法 |
JPS5382354A (en) * | 1976-12-28 | 1978-07-20 | Ricoh Co Ltd | Optica device fdr electrophotographic copier |
US4153364A (en) * | 1977-01-28 | 1979-05-08 | Ricoh Company, Ltd. | Exposure and development control apparatus for electrostatic copying machine |
JPS5492742A (en) * | 1977-12-29 | 1979-07-23 | Ricoh Co Ltd | Control method for copier image quality |
-
1980
- 1980-09-02 JP JP55120623A patent/JPS5745564A/ja active Granted
-
1981
- 1981-08-27 GB GB8126227A patent/GB2086077B/en not_active Expired
- 1981-09-02 DE DE19813134782 patent/DE3134782A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0330143B2 (de) | 1991-04-26 |
JPS5745564A (en) | 1982-03-15 |
DE3134782C2 (de) | 1992-09-03 |
GB2086077A (en) | 1982-05-06 |
DE3134782A1 (de) | 1982-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930827 |