JPH0135345B2 - - Google Patents
Info
- Publication number
- JPH0135345B2 JPH0135345B2 JP59132274A JP13227484A JPH0135345B2 JP H0135345 B2 JPH0135345 B2 JP H0135345B2 JP 59132274 A JP59132274 A JP 59132274A JP 13227484 A JP13227484 A JP 13227484A JP H0135345 B2 JPH0135345 B2 JP H0135345B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- specified size
- originals
- detection pattern
- toner
- 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
- 238000001514 detection method Methods 0.000 claims description 33
- 230000003287 optical effect Effects 0.000 claims description 8
- 108091008695 photoreceptors Proteins 0.000 description 18
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
-
- 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
- G03G15/5033—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 photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59132274A JPS6111765A (ja) | 1984-06-26 | 1984-06-26 | 静電記録装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59132274A JPS6111765A (ja) | 1984-06-26 | 1984-06-26 | 静電記録装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14465690A Division JPH0339984A (ja) | 1990-06-01 | 1990-06-01 | 静電記録装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6111765A JPS6111765A (ja) | 1986-01-20 |
JPH0135345B2 true JPH0135345B2 (da) | 1989-07-25 |
Family
ID=15077446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59132274A Granted JPS6111765A (ja) | 1984-06-26 | 1984-06-26 | 静電記録装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6111765A (da) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150703A (ja) * | 1983-02-17 | 1984-08-29 | 田之内 寅雄 | ベニヤレ−スに於ける原木の軸心不動機能を備えた外周駆動方法および装置 |
JPS59204502A (ja) * | 1983-05-06 | 1984-11-19 | 田之内 寅雄 | ベニヤレ−スに於ける原木の軸心不動機能を備えた外周駆動装置 |
JPH0339984A (ja) * | 1990-06-01 | 1991-02-20 | Konica Corp | 静電記録装置 |
US5822662A (en) * | 1997-04-09 | 1998-10-13 | Xerox Corporation | Background detection and compensation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5051740A (da) * | 1973-08-31 | 1975-05-08 | ||
JPS57104159A (en) * | 1980-12-22 | 1982-06-29 | Konishiroku Photo Ind Co Ltd | Toner density detecting method |
JPS5930565A (ja) * | 1982-08-13 | 1984-02-18 | Fuji Xerox Co Ltd | 電子複写機の画像濃度制御装置 |
-
1984
- 1984-06-26 JP JP59132274A patent/JPS6111765A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5051740A (da) * | 1973-08-31 | 1975-05-08 | ||
JPS57104159A (en) * | 1980-12-22 | 1982-06-29 | Konishiroku Photo Ind Co Ltd | Toner density detecting method |
JPS5930565A (ja) * | 1982-08-13 | 1984-02-18 | Fuji Xerox Co Ltd | 電子複写機の画像濃度制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS6111765A (ja) | 1986-01-20 |
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