FR2350631A1 - Machine a photocopier electrostatique a selection de grandissement - Google Patents
Machine a photocopier electrostatique a selection de grandissementInfo
- Publication number
- FR2350631A1 FR2350631A1 FR7712343A FR7712343A FR2350631A1 FR 2350631 A1 FR2350631 A1 FR 2350631A1 FR 7712343 A FR7712343 A FR 7712343A FR 7712343 A FR7712343 A FR 7712343A FR 2350631 A1 FR2350631 A1 FR 2350631A1
- Authority
- FR
- France
- Prior art keywords
- copying machine
- electrostatic copying
- enlargement selection
- enlargement
- selection
- 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.)
- Withdrawn
Links
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)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/684,407 US4118118A (en) | 1976-05-07 | 1976-05-07 | Electrostatic copier machine with selectable magnification ratios |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2350631A1 true FR2350631A1 (fr) | 1977-12-02 |
Family
ID=24747908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7712343A Withdrawn FR2350631A1 (fr) | 1976-05-07 | 1977-04-25 | Machine a photocopier electrostatique a selection de grandissement |
Country Status (5)
Country | Link |
---|---|
US (1) | US4118118A (fr) |
JP (1) | JPS52142522A (fr) |
DE (1) | DE2719310A1 (fr) |
FR (1) | FR2350631A1 (fr) |
GB (1) | GB1548355A (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1525218A (en) * | 1976-09-07 | 1978-09-20 | Ibm | Electrophotographic copying machine |
JPS592011B2 (ja) * | 1976-11-18 | 1984-01-17 | 株式会社ケイアイピ− | 静電再生装置における原稿台往復運動制御装置 |
JPS5452233U (fr) * | 1977-09-20 | 1979-04-11 | ||
JPS6026205B2 (ja) * | 1978-04-19 | 1985-06-22 | キヤノン株式会社 | 原稿固定複写装置 |
US5146276A (en) * | 1978-11-09 | 1992-09-08 | Spectrum Sciences B.V. | Rotatable focusing means and variable magnification electrophotocopier |
JPS55124168A (en) * | 1979-03-19 | 1980-09-25 | Ricoh Co Ltd | Scanning method in variable power type copying machine and its device |
US4426153A (en) | 1979-06-21 | 1984-01-17 | Ibm Corporation | Apparatus for the reduction of image intensity variations in a continuously variable reducing copier |
US4371255A (en) * | 1979-11-30 | 1983-02-01 | Ricoh Company, Ltd. | Electrophotographic copying method and apparatus of reciprocal original scanning type |
US4332461A (en) * | 1979-12-06 | 1982-06-01 | Ibm Corporation | Electrical drive for scanning optics in a continuously variable reduction copier |
JPS5738462A (en) * | 1980-08-20 | 1982-03-03 | Ricoh Co Ltd | Copying method of variable magnification and reciprocating exposure |
US4353643A (en) * | 1980-06-02 | 1982-10-12 | Xerox Corporation | Multimagnification mode optical system with rotating and translating lens |
US4373803A (en) * | 1980-09-24 | 1983-02-15 | Xerox Corporation | Precession scanning system for copier device |
US4285590A (en) * | 1980-10-15 | 1981-08-25 | Xerox Corporation | Precession scanning system for copier device |
US4338022A (en) * | 1980-12-22 | 1982-07-06 | Minnesota Mining And Manufacturing Company | Multiple magnification optical assembly |
JPS57198469A (en) * | 1981-06-01 | 1982-12-06 | Ricoh Co Ltd | Exposing method for photosensitive element |
JPS58182627A (ja) * | 1982-04-20 | 1983-10-25 | Mita Ind Co Ltd | 静電複写機 |
US4407581A (en) * | 1982-05-17 | 1983-10-04 | Xerox Corporation | Compact optical scanning system |
JPS58216238A (ja) * | 1982-06-10 | 1983-12-15 | Konishiroku Photo Ind Co Ltd | 可変倍率型複写機のレンズ台制御装置 |
JPS59181436U (ja) * | 1983-05-19 | 1984-12-04 | ミノルタ株式会社 | 複写機における倍率変更装置 |
JPS6011829A (ja) * | 1983-06-30 | 1985-01-22 | Matsushita Electric Ind Co Ltd | 複写倍率変換装置 |
US6624914B1 (en) | 2000-03-10 | 2003-09-23 | Hewlett-Packard Development Company, L.P. | Multiple resolution selectable lens scanning system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1522364A (fr) * | 1967-03-13 | 1968-04-26 | Tefal Sa | Perfectionnement aux accessoires pour ustensiles culinaires |
US3556655A (en) * | 1968-01-22 | 1971-01-19 | Addressograph Multigraph | Photoelectrostatic copying machine |
US3832057A (en) * | 1972-06-02 | 1974-08-27 | Xerox Corp | Scanning apparatus |
FR2255628A1 (fr) * | 1973-12-22 | 1975-07-18 | Minolta Camera Kk |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3476478A (en) * | 1967-01-03 | 1969-11-04 | Xerox Corp | Apparatus for changing the magnification of a photocopier without changing the conjugate length of the optical system |
US3542467A (en) * | 1968-04-15 | 1970-11-24 | Xerox Corp | Xerographic reproducing apparatus |
US3614222A (en) * | 1970-04-24 | 1971-10-19 | Olivetti & Co Spa | Optical drive system for reproducing machine |
US3829209A (en) * | 1971-06-11 | 1974-08-13 | Xerox Corp | Image registration in a multiple magnification photocopying system |
US3778147A (en) * | 1972-07-11 | 1973-12-11 | Xerox Corp | Electrostatic reproduction machine having selectable magnification ratios |
-
1976
- 1976-05-07 US US05/684,407 patent/US4118118A/en not_active Expired - Lifetime
-
1977
- 1977-04-21 GB GB16696/77A patent/GB1548355A/en not_active Expired
- 1977-04-25 FR FR7712343A patent/FR2350631A1/fr not_active Withdrawn
- 1977-04-29 DE DE19772719310 patent/DE2719310A1/de active Pending
- 1977-05-06 JP JP5133477A patent/JPS52142522A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1522364A (fr) * | 1967-03-13 | 1968-04-26 | Tefal Sa | Perfectionnement aux accessoires pour ustensiles culinaires |
US3556655A (en) * | 1968-01-22 | 1971-01-19 | Addressograph Multigraph | Photoelectrostatic copying machine |
US3832057A (en) * | 1972-06-02 | 1974-08-27 | Xerox Corp | Scanning apparatus |
FR2255628A1 (fr) * | 1973-12-22 | 1975-07-18 | Minolta Camera Kk |
Also Published As
Publication number | Publication date |
---|---|
GB1548355A (en) | 1979-07-11 |
DE2719310A1 (de) | 1977-11-17 |
US4118118A (en) | 1978-10-03 |
JPS52142522A (en) | 1977-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |