CA1105983A - Electrophotographic apparatus comprising improved imaging system - Google Patents
Electrophotographic apparatus comprising improved imaging systemInfo
- Publication number
- CA1105983A CA1105983A CA285,354A CA285354A CA1105983A CA 1105983 A CA1105983 A CA 1105983A CA 285354 A CA285354 A CA 285354A CA 1105983 A CA1105983 A CA 1105983A
- Authority
- CA
- Canada
- Prior art keywords
- triac
- document
- photoconductive member
- intensity
- control means
- 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
- 238000003384 imaging method Methods 0.000 title description 3
- 239000013307 optical fiber Substances 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 238000005286 illumination Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 19
- 238000010304 firing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51-100859 | 1976-08-24 | ||
| JP10085976A JPS5328428A (en) | 1976-08-24 | 1976-08-24 | Light control for electrophoto graphic copier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1105983A true CA1105983A (en) | 1981-07-28 |
Family
ID=14285028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA285,354A Expired CA1105983A (en) | 1976-08-24 | 1977-08-23 | Electrophotographic apparatus comprising improved imaging system |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4193679A (member.php) |
| JP (1) | JPS5328428A (member.php) |
| CA (1) | CA1105983A (member.php) |
| DE (1) | DE2738017A1 (member.php) |
| FR (1) | FR2363137A1 (member.php) |
| GB (1) | GB1584424A (member.php) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559545A (en) * | 1978-07-06 | 1980-01-23 | Canon Inc | Exposure control device |
| US4474453A (en) * | 1979-04-18 | 1984-10-02 | Ricoh Company, Ltd. | Electrostatic copying apparatus |
| US4316665A (en) * | 1979-12-06 | 1982-02-23 | Canon Kabushiki Kaisha | Projection device |
| JPS56156841A (en) * | 1980-05-09 | 1981-12-03 | Toshiba Corp | Electronic copying machine |
| DE3035550A1 (de) * | 1980-09-20 | 1982-04-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Belichtungseinheit |
| US4382672A (en) * | 1980-09-29 | 1983-05-10 | Xerox Corporation | Illumination arrangement for elimination of gray borders in copying device |
| US4345833A (en) * | 1981-02-23 | 1982-08-24 | American Optical Corporation | Lens array |
| US4462662A (en) * | 1981-06-15 | 1984-07-31 | Xerox Corporation | Imaging system utilizing a gradient index lens array compensated for non-uniform object illumination |
| JPS5979240A (ja) * | 1982-10-29 | 1984-05-08 | Hitachi Ltd | 複写機の露光制御装置 |
| JPS5971342U (ja) * | 1982-11-04 | 1984-05-15 | シャープ株式会社 | 光量調整装置 |
| US4494855A (en) * | 1984-03-07 | 1985-01-22 | Colwill Richard H | Synchronous copying and collating system |
| JPS61149972A (ja) * | 1984-12-25 | 1986-07-08 | Ricoh Co Ltd | カラ−複写方法 |
| JPS63259533A (ja) * | 1987-04-16 | 1988-10-26 | Fuji Photo Film Co Ltd | 画像記録装置 |
| US4801978A (en) * | 1987-12-30 | 1989-01-31 | Xerox Corporation | Image bar printer compensated for vibration-generated scan line errors |
| JP2524126Y2 (ja) * | 1991-05-17 | 1997-01-29 | セイコープレシジョン株式会社 | インスタント写真式複写装置 |
| US5303000A (en) * | 1991-06-07 | 1994-04-12 | Agfa-Gevaert Aktiengesellschaft | Method of and apparatus for ascertaining the characteristics of shorter and longer sections of photographic material |
| US5450157A (en) * | 1993-12-06 | 1995-09-12 | Xerox Corporation | Imaging system using a gradient index lens array with improved depth of focus |
| US7035575B2 (en) * | 2003-04-16 | 2006-04-25 | Ricoh Company, Ltd. | Developing device, image forming apparatus, and process cartridge |
| JP4393900B2 (ja) * | 2003-06-26 | 2010-01-06 | 株式会社リコー | 現像装置、画像形成装置、プロセスカートリッジ及び現像方法 |
| JP4672243B2 (ja) * | 2003-06-27 | 2011-04-20 | 株式会社リコー | 現像装置及び画像形成装置 |
| US7162187B2 (en) * | 2003-06-30 | 2007-01-09 | Ricoh Company, Ltd. | Image forming apparatus and image forming method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3423153A (en) * | 1966-01-14 | 1969-01-21 | American Photocopy Equip Co | Control of light level in photocopy machine |
| US3409354A (en) * | 1966-06-08 | 1968-11-05 | Eastman Kodak Co | Optical systems with axial mirrors |
| US3815992A (en) * | 1969-10-30 | 1974-06-11 | Minolta Camera Kk | Projection type duplicator |
| JPS511970B1 (member.php) * | 1969-12-12 | 1976-01-22 | ||
| US3742295A (en) * | 1970-03-30 | 1973-06-26 | Minolta Camera Kk | Lighting system in copying apparatus |
| US3764210A (en) * | 1970-11-03 | 1973-10-09 | Minolta Camera Kk | A lighting system for a halogen lamp in a duplicating machine |
| US3731611A (en) * | 1972-02-11 | 1973-05-08 | Copystatics Manuf Corp | Exposure control system for reproduction devices |
| JPS5068583U (member.php) * | 1973-10-22 | 1975-06-18 | ||
| JPS5744350Y2 (member.php) * | 1973-11-07 | 1982-09-30 |
-
1976
- 1976-08-24 JP JP10085976A patent/JPS5328428A/ja active Pending
-
1977
- 1977-08-19 GB GB34854/77A patent/GB1584424A/en not_active Expired
- 1977-08-23 US US05/827,055 patent/US4193679A/en not_active Expired - Lifetime
- 1977-08-23 DE DE19772738017 patent/DE2738017A1/de active Pending
- 1977-08-23 FR FR7725650A patent/FR2363137A1/fr active Granted
- 1977-08-23 CA CA285,354A patent/CA1105983A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2738017A1 (de) | 1978-03-02 |
| US4193679A (en) | 1980-03-18 |
| FR2363137A1 (fr) | 1978-03-24 |
| JPS5328428A (en) | 1978-03-16 |
| GB1584424A (en) | 1981-02-11 |
| FR2363137B1 (member.php) | 1982-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |