IT1145600B - Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabile - Google Patents
Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabileInfo
- Publication number
- IT1145600B IT1145600B IT68650/81A IT6865081A IT1145600B IT 1145600 B IT1145600 B IT 1145600B IT 68650/81 A IT68650/81 A IT 68650/81A IT 6865081 A IT6865081 A IT 6865081A IT 1145600 B IT1145600 B IT 1145600B
- Authority
- IT
- Italy
- Prior art keywords
- copiers
- scanning device
- reduction ratio
- variable magnification
- original scanning
- 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
- G03B27/52—Details
- G03B27/522—Projection optics
- G03B27/525—Projection optics for slit exposure
- G03B27/526—Projection optics for slit exposure in which the projection optics move
-
- 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)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68650/81A IT1145600B (it) | 1981-12-21 | 1981-12-21 | Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabile |
US06/449,388 US4494866A (en) | 1981-12-21 | 1982-12-13 | Apparatus for scanning an original for copiers having a variable reducing/enlargement ratio |
DE8282306805T DE3270322D1 (en) | 1981-12-21 | 1982-12-20 | Apparatus for scanning an original for copiers having a variable reducing/enlargement ratio |
EP82306805A EP0082713B1 (en) | 1981-12-21 | 1982-12-20 | Apparatus for scanning an original for copiers having a variable reducing/enlargement ratio |
JP57224788A JPS5910937A (ja) | 1981-12-21 | 1982-12-21 | 可変縮小/拡大比を有する複写機用原稿走査装置 |
JP3202496A JPH0740120B2 (ja) | 1981-12-21 | 1991-07-17 | 可変縮小/拡大比を有する複写機用原稿走査装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68650/81A IT1145600B (it) | 1981-12-21 | 1981-12-21 | Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabile |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8168650A0 IT8168650A0 (it) | 1981-12-21 |
IT1145600B true IT1145600B (it) | 1986-11-05 |
Family
ID=11310161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68650/81A IT1145600B (it) | 1981-12-21 | 1981-12-21 | Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabile |
Country Status (5)
Country | Link |
---|---|
US (1) | US4494866A (it) |
EP (1) | EP0082713B1 (it) |
JP (2) | JPS5910937A (it) |
DE (1) | DE3270322D1 (it) |
IT (1) | IT1145600B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4543643A (en) * | 1982-05-28 | 1985-09-24 | Minolta Camera | Copying magnification setting device for an electrophotographic copying apparatus |
JPS5933442A (ja) * | 1982-08-19 | 1984-02-23 | Toshiba Corp | 画像形成装置 |
JPH0767298B2 (ja) * | 1983-10-26 | 1995-07-19 | 株式会社東芝 | 像形成装置の原稿走査制御装置 |
US4585331A (en) * | 1984-08-20 | 1986-04-29 | Xerox Corporation | Optical scanning system utilizing linear drive motors |
US4710017A (en) * | 1985-06-27 | 1987-12-01 | Mita Industrial Co., Ltd. | Optical unit holding device for copying machines |
US4746957A (en) * | 1985-07-17 | 1988-05-24 | Sharp Kabushiki Kaisha | Variable magnification copy machine |
JPS62147164A (ja) * | 1985-12-20 | 1987-07-01 | Canon Inc | 走査装置 |
US4796059A (en) * | 1987-01-28 | 1989-01-03 | Konica Corporation | Image forming apparatus with magnification changing device |
JPH01107275A (ja) * | 1987-10-21 | 1989-04-25 | Sharp Corp | 変倍複写機 |
JPH01170928A (ja) * | 1987-12-25 | 1989-07-06 | Sharp Corp | 複写機の光学系移動装置 |
JPH0744864B2 (ja) * | 1989-05-22 | 1995-05-15 | シャープ株式会社 | Pll速度制御回路 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3614222A (en) * | 1970-04-24 | 1971-10-19 | Olivetti & Co Spa | Optical drive system for reproducing machine |
JPS5241860Y2 (it) * | 1973-02-27 | 1977-09-22 | ||
US4000943A (en) * | 1975-02-13 | 1977-01-04 | Xerox Corporation | Two speed, duel purpose document handling system |
CA1101049A (en) * | 1976-12-25 | 1981-05-12 | Masao Kono | Electrostatic copying machine |
JPS54133139A (en) * | 1978-04-05 | 1979-10-16 | Canon Inc | Copying machine |
US4218735A (en) * | 1978-10-05 | 1980-08-19 | Minnesota Mining And Manufacturng Company | Digital motor control system |
US4323919A (en) * | 1979-08-09 | 1982-04-06 | Canon Kabushiki Kaisha | Optical scanner for reading data recorded in plural colors |
EP0030686B1 (en) * | 1979-12-17 | 1984-08-08 | International Business Machines Corporation | Optical element adjustment apparatus and method |
JPS5687065A (en) * | 1979-12-17 | 1981-07-15 | Ricoh Co Ltd | Traveling device of optical system mirror |
DE3266787D1 (en) * | 1981-06-18 | 1985-11-14 | Toshiba Kk | Optical system drive device for image formation apparatus |
JPS5811966A (ja) * | 1981-07-15 | 1983-01-22 | Canon Inc | 原稿走査装置 |
JPS5885458A (ja) * | 1981-11-17 | 1983-05-21 | Fuji Xerox Co Ltd | 多段階変倍式複写装置 |
-
1981
- 1981-12-21 IT IT68650/81A patent/IT1145600B/it active
-
1982
- 1982-12-13 US US06/449,388 patent/US4494866A/en not_active Expired - Fee Related
- 1982-12-20 EP EP82306805A patent/EP0082713B1/en not_active Expired
- 1982-12-20 DE DE8282306805T patent/DE3270322D1/de not_active Expired
- 1982-12-21 JP JP57224788A patent/JPS5910937A/ja active Granted
-
1991
- 1991-07-17 JP JP3202496A patent/JPH0740120B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0082713A1 (en) | 1983-06-29 |
JPS5910937A (ja) | 1984-01-20 |
JPH055955A (ja) | 1993-01-14 |
JPH0740120B2 (ja) | 1995-05-01 |
JPH0531131B2 (it) | 1993-05-11 |
IT8168650A0 (it) | 1981-12-21 |
EP0082713B1 (en) | 1986-04-02 |
US4494866A (en) | 1985-01-22 |
DE3270322D1 (en) | 1986-05-07 |
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