DE2941665C2 - - Google Patents
Info
- Publication number
- DE2941665C2 DE2941665C2 DE2941665A DE2941665A DE2941665C2 DE 2941665 C2 DE2941665 C2 DE 2941665C2 DE 2941665 A DE2941665 A DE 2941665A DE 2941665 A DE2941665 A DE 2941665A DE 2941665 C2 DE2941665 C2 DE 2941665C2
- Authority
- DE
- Germany
- Prior art keywords
- potential
- voltage
- sensor
- signal
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 description 22
- 238000011161 development Methods 0.000 description 16
- 238000005259 measurement Methods 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 10
- 230000005669 field effect Effects 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 9
- 238000003384 imaging method Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000009499 grossing Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000036211 photosensitivity Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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
- G03G15/50—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
- G03G15/5037—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 the characteristics being an electrical parameter, e.g. voltage
-
- 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
-
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
- G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Or Security For Electrophotography (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12673578A JPS5553368A (en) | 1978-10-14 | 1978-10-14 | Method and apparatus for forming image |
| JP12674078A JPS5553346A (en) | 1978-10-14 | 1978-10-14 | Image former |
| JP12673778A JPS5553364A (en) | 1978-10-14 | 1978-10-14 | Electrostatic recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2941665A1 DE2941665A1 (de) | 1980-04-24 |
| DE2941665C2 true DE2941665C2 (US06653308-20031125-C00199.png) | 1991-03-07 |
Family
ID=27315386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792941665 Granted DE2941665A1 (de) | 1978-10-14 | 1979-10-15 | Bilderzeugungsverfahren und -vorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US4326795A (US06653308-20031125-C00199.png) |
| DE (1) | DE2941665A1 (US06653308-20031125-C00199.png) |
| GB (1) | GB2034249B (US06653308-20031125-C00199.png) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3038367C2 (de) * | 1979-10-13 | 1994-06-23 | Canon Kk | Elektrofotografisches Gerät |
| DE3128801A1 (de) * | 1980-07-22 | 1982-04-15 | Canon K.K., Tokyo | "bilderzeugungsgeraet" |
| US4534642A (en) * | 1981-12-25 | 1985-08-13 | Tokyo Shibaura Denki Kabushiki Kaisha | Electrophotographic copying apparatus for effecting a copying operation on the basis of a set copying characteristic |
| US4563081A (en) * | 1982-01-12 | 1986-01-07 | Canon Kabushiki Kaisha | Apparatus for controlling image forming condition |
| JPS59180570A (ja) * | 1983-03-30 | 1984-10-13 | Sharp Corp | 現像装置 |
| US4600294A (en) * | 1983-04-01 | 1986-07-15 | Canon Kabushiki Kaisha | Image forming apparatus with detector and control |
| US4748934A (en) * | 1984-06-14 | 1988-06-07 | Ricoh Company, Ltd. | Developing apparatus |
| JPS61277977A (ja) * | 1985-06-04 | 1986-12-08 | Canon Inc | 画像形成装置 |
| US4821065A (en) * | 1986-01-10 | 1989-04-11 | Canon Kabushiki Kaisha | Recording apparatus having controllable recording beam states |
| US4870460A (en) * | 1986-12-05 | 1989-09-26 | Ricoh Company, Ltd. | Method of controlling surface potential of photoconductive element |
| US4796064A (en) * | 1988-01-11 | 1989-01-03 | Xerox Corporation | Cycle-up control scheme |
| US4879577A (en) * | 1988-04-19 | 1989-11-07 | International Business Machines Corporation | Method and apparatus for controlling the electrostatic parameters of an electrophotographic reproduction device |
| US4963926A (en) * | 1988-05-12 | 1990-10-16 | Mita Industrial Co., Ltd. | Electrostatic image forming apparatus with charge controller |
| JP2733609B2 (ja) * | 1988-10-29 | 1998-03-30 | キヤノン株式会社 | 転写装置 |
| US5179397A (en) * | 1989-04-03 | 1993-01-12 | Canon Kabushiki Kaisha | Image forming apparatus with constant voltage and constant current control |
| JP2769574B2 (ja) * | 1989-08-02 | 1998-06-25 | 石原産業株式会社 | 電子写真画像形成方法 |
| US5204729A (en) * | 1990-01-23 | 1993-04-20 | Sharp Kabushiki Kaisha | Full color copying machine |
| US5122835A (en) * | 1991-05-06 | 1992-06-16 | Eastman Kodak Company | Compensating densitometer readings for drifts and dusting |
| US5523831A (en) * | 1994-03-17 | 1996-06-04 | Eastman Kodak Company | Accurate dynamic control of the potential on the photoconductor surface using an updatable look-up table |
| JP5130625B2 (ja) * | 2005-12-26 | 2013-01-30 | ブラザー工業株式会社 | 画像形成装置 |
| JP2008008923A (ja) * | 2006-06-27 | 2008-01-17 | Ricoh Co Ltd | 画像形成装置及びプロセスカートリッジ |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788739A (en) * | 1972-06-21 | 1974-01-29 | Xerox Corp | Image compensation method and apparatus for electrophotographic devices |
| US4050806A (en) * | 1974-05-10 | 1977-09-27 | Ricoh Co., Ltd. | Method and apparatus for electrically biasing developing electrode of electrophotographic device |
| JPS629900B2 (US06653308-20031125-C00199.png) * | 1974-08-12 | 1987-03-03 | Xerox Corp | |
| US3944354A (en) * | 1974-09-06 | 1976-03-16 | Eastman Kodak Company | Voltage measurement apparatus |
| US3998538A (en) * | 1975-02-24 | 1976-12-21 | Xerox Corporation | Electrometer apparatus for reproduction machines |
| US4023901A (en) * | 1975-10-06 | 1977-05-17 | Xerox Corporation | Reproduction machine service control |
| US4019102A (en) * | 1975-10-16 | 1977-04-19 | General Electric Company | Successive approximation feedback control system |
| JPS6040024B2 (ja) * | 1976-09-17 | 1985-09-09 | キヤノン株式会社 | 静電潜像安定化方法 |
| US4063154A (en) * | 1976-11-26 | 1977-12-13 | Xerox Corporation | D. C. electrometer |
| DE2857218C3 (de) * | 1977-02-23 | 1989-08-10 | Ricoh Co., Ltd., Tokio/Tokyo | Verfahren zum Konstanthalten optimaler Bedingungen bei der elektrografischen Vervielfältigung |
| US4206995A (en) * | 1977-08-30 | 1980-06-10 | Xerox Corporation | Reproduction machine with on board document handler diagnostics |
| JPS5486347A (en) * | 1977-12-21 | 1979-07-09 | Canon Inc | Development stabilizing system |
-
1979
- 1979-10-11 US US06/083,773 patent/US4326795A/en not_active Expired - Lifetime
- 1979-10-12 GB GB7935493A patent/GB2034249B/en not_active Expired
- 1979-10-15 DE DE19792941665 patent/DE2941665A1/de active Granted
-
1981
- 1981-12-09 US US06/329,018 patent/US4484811A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2034249A (en) | 1980-06-04 |
| GB2034249B (en) | 1983-07-27 |
| US4326795A (en) | 1982-04-27 |
| US4484811A (en) | 1984-11-27 |
| DE2941665A1 (de) | 1980-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |