DE2238972C3 - Vorrichtung zum Auswählen einer erwünschten Kopiervergrößerung in einem Kopiergerät - Google Patents
Vorrichtung zum Auswählen einer erwünschten Kopiervergrößerung in einem KopiergerätInfo
- Publication number
- DE2238972C3 DE2238972C3 DE2238972A DE2238972A DE2238972C3 DE 2238972 C3 DE2238972 C3 DE 2238972C3 DE 2238972 A DE2238972 A DE 2238972A DE 2238972 A DE2238972 A DE 2238972A DE 2238972 C3 DE2238972 C3 DE 2238972C3
- Authority
- DE
- Germany
- Prior art keywords
- switch
- relay
- closed
- magnification
- drive
- 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
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 21
- 238000004804 winding Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 101710150104 Sensory rhodopsin-1 Proteins 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/34—Means for automatic focusing therefor
- G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage
- G03B27/40—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage adapted for use with lenses of different focal length
-
- 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
- G03G15/041—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 variable magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971071071U JPS5330278Y2 (enrdf_load_stackoverflow) | 1971-08-09 | 1971-08-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2238972A1 DE2238972A1 (de) | 1973-02-22 |
| DE2238972B2 DE2238972B2 (de) | 1981-06-04 |
| DE2238972C3 true DE2238972C3 (de) | 1982-03-04 |
Family
ID=13449910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2238972A Expired DE2238972C3 (de) | 1971-08-09 | 1972-08-08 | Vorrichtung zum Auswählen einer erwünschten Kopiervergrößerung in einem Kopiergerät |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3779642A (enrdf_load_stackoverflow) |
| JP (1) | JPS5330278Y2 (enrdf_load_stackoverflow) |
| DE (1) | DE2238972C3 (enrdf_load_stackoverflow) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50151635U (enrdf_load_stackoverflow) * | 1974-05-31 | 1975-12-17 | ||
| NL168342C (nl) * | 1974-06-28 | 1982-03-16 | Oce Van Der Grinten Nv | Reproductie-inrichting |
| US4135794A (en) * | 1975-05-12 | 1979-01-23 | Addressograph-Multigraph Corporation | Photocomposition machine |
| US4046467A (en) * | 1975-05-14 | 1977-09-06 | Xerox Corporation | Zoom lens copier |
| US4110028A (en) * | 1975-08-04 | 1978-08-29 | Xerox Corporation | Drive system for multi-mode reproducing apparatus |
| JPS6018936B2 (ja) * | 1975-10-02 | 1985-05-13 | 松下電器産業株式会社 | 感湿素子 |
| US4053221A (en) * | 1975-10-14 | 1977-10-11 | Xerox Corporation | Multi-mode reproducing apparatus |
| JPS544983Y2 (enrdf_load_stackoverflow) * | 1975-11-21 | 1979-03-03 | ||
| JPS53114432A (en) * | 1977-03-16 | 1978-10-05 | Minolta Camera Co Ltd | Zerographic copying machine with magnifying mechanism |
| DE2839076C3 (de) * | 1977-09-09 | 1998-01-29 | Canon Kk | Kopiergerät |
| JPS554454U (enrdf_load_stackoverflow) * | 1978-06-23 | 1980-01-12 | ||
| US4215922A (en) * | 1978-11-01 | 1980-08-05 | Am International, Inc. | Method for projecting characters at a selected point size in a photocomposition machine |
| DK149352C (da) * | 1979-01-11 | 1986-11-03 | Eskofot As | Fremgangsmaade til indstilling af et forstoerrelsesapparat |
| JPS56144445A (en) * | 1980-04-11 | 1981-11-10 | Toshiba Corp | Copying machine |
| JPS6239394Y2 (enrdf_load_stackoverflow) * | 1981-03-19 | 1987-10-07 | ||
| JPS57181567A (en) * | 1981-04-30 | 1982-11-09 | Fuji Xerox Co Ltd | Copying machine of continuously variable magnification |
| US4676632A (en) * | 1984-11-08 | 1987-06-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Variable magnification copying optical system |
| US4866477A (en) * | 1988-06-10 | 1989-09-12 | Eastman Kodak Company | Automatic lens selection for desired optical reduction ratio in a microfilm camera |
| DE29602738U1 (de) * | 1996-02-22 | 1996-06-05 | Descours, Pierre Marie, 72074 Tübingen | Belichtungseinrichtung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119108B (de) * | 1960-03-30 | 1961-12-07 | Photo Copie G M B H | Mikrofilm-Durchlaufkamera zur photographischen Aufnahme von ebenen Vorlagen |
| CH406846A (de) * | 1963-03-13 | 1966-01-31 | Gretag Ag | Photographisches Kopiergerät für mindestens zwei verschiedene Negativ- und Positivformate |
| US3511565A (en) * | 1968-04-18 | 1970-05-12 | Drewry Photocolor Corp | Photo apparatus having rotary film transport |
| US3688672A (en) * | 1970-03-25 | 1972-09-05 | Compugraphic Corp | Keyboard operated phototypesetting display machine |
-
1971
- 1971-08-09 JP JP1971071071U patent/JPS5330278Y2/ja not_active Expired
-
1972
- 1972-07-17 US US00272709A patent/US3779642A/en not_active Expired - Lifetime
- 1972-08-08 DE DE2238972A patent/DE2238972C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2238972A1 (de) | 1973-02-22 |
| US3779642A (en) | 1973-12-18 |
| DE2238972B2 (de) | 1981-06-04 |
| JPS4828435U (enrdf_load_stackoverflow) | 1973-04-07 |
| JPS5330278Y2 (enrdf_load_stackoverflow) | 1978-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) |