GB1571095A - Variable magnification photocopier - Google Patents
Variable magnification photocopier Download PDFInfo
- Publication number
- GB1571095A GB1571095A GB4904976A GB4904976A GB1571095A GB 1571095 A GB1571095 A GB 1571095A GB 4904976 A GB4904976 A GB 4904976A GB 4904976 A GB4904976 A GB 4904976A GB 1571095 A GB1571095 A GB 1571095A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnification
- relay
- microswitch
- scanning
- cam
- 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
- 230000003287 optical effect Effects 0.000 claims description 55
- 230000008859 change Effects 0.000 claims description 10
- 230000008901 benefit Effects 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 description 20
- 230000007246 mechanism Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000011521 glass Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000009467 reduction 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
- G03G15/041—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)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14373175A JPS5267321A (en) | 1975-12-01 | 1975-12-01 | Variable magnification optical instrument |
| JP3186076A JPS52115217A (en) | 1976-03-23 | 1976-03-23 | Operation of variable multiplication optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1571095A true GB1571095A (en) | 1980-07-09 |
Family
ID=26370378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4904976A Expired GB1571095A (en) | 1975-12-01 | 1976-11-24 | Variable magnification photocopier |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1105072A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2654250C2 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2334129A1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1571095A (cg-RX-API-DMAC7.html) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124398A (en) * | 1982-05-31 | 1984-02-15 | Canon Kk | Control of image forming conditions in variable magnification photocopying apparatus |
| GB2133566A (en) * | 1983-01-06 | 1984-07-25 | Canon Kk | Variable magnification projector having zoom lens |
| GB2213949A (en) * | 1988-01-14 | 1989-08-23 | Toshiba Kk | "Image forming apparatus with controlled magnification" |
| US5465131A (en) | 1986-05-12 | 1995-11-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US5475456A (en) | 1986-05-12 | 1995-12-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120578A (en) * | 1976-09-07 | 1978-10-17 | International Business Machines Corporation | Continuously variable reduction scanning optics drive |
| DE3317066A1 (de) * | 1982-05-11 | 1983-11-17 | Canon K.K., Tokyo | Vorlagenabtasteinrichtung |
| US4593999A (en) * | 1982-07-05 | 1986-06-10 | Canon Kabushiki Kaisha | Copying apparatus |
| JPS6014224A (ja) * | 1983-07-06 | 1985-01-24 | Toshiba Corp | 画像形成装置 |
| DE3546798C3 (de) * | 1984-08-30 | 1993-12-02 | Sharp Kk | Verfahren zur Steuerung der Bewegung der Abstasteinrichtung eines Kopiergerätes |
| JPS629373A (ja) * | 1985-07-05 | 1987-01-17 | Sharp Corp | 複写装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5241860Y2 (cg-RX-API-DMAC7.html) * | 1973-02-27 | 1977-09-22 |
-
1976
- 1976-11-24 GB GB4904976A patent/GB1571095A/en not_active Expired
- 1976-11-30 CA CA266,887A patent/CA1105072A/en not_active Expired
- 1976-11-30 FR FR7636086A patent/FR2334129A1/fr active Granted
- 1976-11-30 DE DE19762654250 patent/DE2654250C2/de not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124398A (en) * | 1982-05-31 | 1984-02-15 | Canon Kk | Control of image forming conditions in variable magnification photocopying apparatus |
| GB2133566A (en) * | 1983-01-06 | 1984-07-25 | Canon Kk | Variable magnification projector having zoom lens |
| US5598240A (en) | 1986-05-12 | 1997-01-28 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
| US5465131A (en) | 1986-05-12 | 1995-11-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US5475456A (en) | 1986-05-12 | 1995-12-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
| US5583596A (en) | 1986-05-12 | 1996-12-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US5673099A (en) | 1986-05-12 | 1997-09-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US5713051A (en) | 1986-05-12 | 1998-01-27 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US5740476A (en) | 1986-05-12 | 1998-04-14 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
| US5897227A (en) | 1986-05-12 | 1999-04-27 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
| US5966551A (en) | 1986-05-12 | 1999-10-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens shutter camera including zoom lens |
| US6094535A (en) | 1986-05-12 | 2000-07-25 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens drive system for lens shutter type of camera |
| GB2213949A (en) * | 1988-01-14 | 1989-08-23 | Toshiba Kk | "Image forming apparatus with controlled magnification" |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2334129A1 (fr) | 1977-07-01 |
| DE2654250C2 (de) | 1986-08-21 |
| FR2334129B1 (cg-RX-API-DMAC7.html) | 1982-09-24 |
| CA1105072A (en) | 1981-07-14 |
| DE2654250A1 (de) | 1977-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19961123 |