BR7503345A - Aperfeicoamento em aparelho de reproducao eletrofotografica e dispositivo de controle de operacao para uso em dito aparelho - Google Patents
Aperfeicoamento em aparelho de reproducao eletrofotografica e dispositivo de controle de operacao para uso em dito aparelhoInfo
- Publication number
- BR7503345A BR7503345A BR4275/75A BR7504275A BR7503345A BR 7503345 A BR7503345 A BR 7503345A BR 4275/75 A BR4275/75 A BR 4275/75A BR 7504275 A BR7504275 A BR 7504275A BR 7503345 A BR7503345 A BR 7503345A
- Authority
- BR
- Brazil
- Prior art keywords
- appliance
- improvement
- control device
- operating control
- electrophotographic reproduction
- Prior art date
Links
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
- 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
- G03B27/52—Details
- G03B27/522—Projection optics
- G03B27/523—Projection optics for full time exposure
-
- 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)
- Optics & Photonics (AREA)
- Control Or Security For Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1974063340U JPS50151635U (pt) | 1974-05-31 | 1974-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7503345A true BR7503345A (pt) | 1976-05-25 |
Family
ID=13226397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR4275/75A BR7503345A (pt) | 1974-05-31 | 1975-05-27 | Aperfeicoamento em aparelho de reproducao eletrofotografica e dispositivo de controle de operacao para uso em dito aparelho |
Country Status (8)
Country | Link |
---|---|
US (1) | US4011012A (pt) |
JP (1) | JPS50151635U (pt) |
AU (1) | AU8109775A (pt) |
BE (1) | BE829473A (pt) |
BR (1) | BR7503345A (pt) |
DE (1) | DE2521751C3 (pt) |
FR (1) | FR2273301A1 (pt) |
NL (1) | NL7506463A (pt) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076417A (en) * | 1976-05-03 | 1978-02-28 | Xerox Corporation | Interlocking apparatus for an optical system and reproducing machine |
JPS52139429A (en) * | 1976-05-17 | 1977-11-21 | Canon Inc | Printer |
JPS53114432A (en) * | 1977-03-16 | 1978-10-05 | Minolta Camera Co Ltd | Zerographic copying machine with magnifying mechanism |
DE2857767C2 (pt) * | 1977-04-19 | 1988-09-29 | Canon K.K., Tokio/Tokyo, Jp | |
DE2839076C3 (de) * | 1977-09-09 | 1998-01-29 | Canon Kk | Kopiergerät |
US5008712B1 (en) * | 1980-10-17 | 1995-04-18 | Canon Kk | Variable magnification copying apparatus and automatic shutdown therefor |
JPS5868072A (ja) * | 1981-10-19 | 1983-04-22 | Canon Inc | 変倍機能を有する複写装置 |
JPS6022122A (ja) * | 1983-07-18 | 1985-02-04 | Casio Comput Co Ltd | 複写装置 |
JPS6211875A (ja) * | 1985-07-09 | 1987-01-20 | Minolta Camera Co Ltd | 電子写真複写機 |
US4866477A (en) * | 1988-06-10 | 1989-09-12 | Eastman Kodak Company | Automatic lens selection for desired optical reduction ratio in a microfilm camera |
US5065198A (en) * | 1988-08-31 | 1991-11-12 | Minolta Camera Kabushiki Kaisha | Copying apparatus having means for inhibiting manual setting of paper size and magnification when the automatic paper selective mode and automatic magnification selection mode are set |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3169441A (en) * | 1960-03-15 | 1965-02-16 | Edwards Photography | Photographic apparatus |
US3689149A (en) * | 1970-11-12 | 1972-09-05 | Drewry Photocolor Corp | Photographic printing apparatus having variable length print paper |
JPS5330278Y2 (pt) * | 1971-08-09 | 1978-07-28 |
-
1974
- 1974-05-31 JP JP1974063340U patent/JPS50151635U/ja active Pending
-
1975
- 1975-05-13 AU AU81097/75A patent/AU8109775A/en not_active Expired
- 1975-05-16 DE DE2521751A patent/DE2521751C3/de not_active Expired
- 1975-05-19 US US05/579,111 patent/US4011012A/en not_active Expired - Lifetime
- 1975-05-26 BE BE156695A patent/BE829473A/xx unknown
- 1975-05-26 FR FR7516317A patent/FR2273301A1/fr not_active Withdrawn
- 1975-05-27 BR BR4275/75A patent/BR7503345A/pt unknown
- 1975-05-30 NL NL7506463A patent/NL7506463A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2521751A1 (de) | 1975-12-11 |
BE829473A (fr) | 1975-09-15 |
DE2521751B2 (de) | 1979-06-13 |
JPS50151635U (pt) | 1975-12-17 |
NL7506463A (nl) | 1975-12-02 |
AU8109775A (en) | 1976-11-18 |
DE2521751C3 (de) | 1980-02-21 |
US4011012A (en) | 1977-03-08 |
FR2273301A1 (pt) | 1975-12-26 |
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