JPS49106349U - - Google Patents
Info
- Publication number
- JPS49106349U JPS49106349U JP1972148094U JP14809472U JPS49106349U JP S49106349 U JPS49106349 U JP S49106349U JP 1972148094 U JP1972148094 U JP 1972148094U JP 14809472 U JP14809472 U JP 14809472U JP S49106349 U JPS49106349 U JP S49106349U
- Authority
- JP
- Japan
- 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.)
- Granted
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
- G03G15/045—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 means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
- G03G15/047—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 means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0429—Changing or enhancing the image
- G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
- G03G2215/0434—Parameters defining the non-image area to be cleaned
- G03G2215/0436—Document properties at the scanning position, e.g. position and density
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0429—Changing or enhancing the image
- G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
- G03G2215/0434—Parameters defining the non-image area to be cleaned
- G03G2215/0446—Magnification degree
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0429—Changing or enhancing the image
- G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
- G03G2215/0448—Charge-erasing means for the non-image area
- G03G2215/0463—Exposure lamp used for scanning
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Holders For Sensitive Materials And Originals (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972148094U JPS5232198Y2 (US07923587-20110412-C00022.png) | 1972-12-27 | 1972-12-27 | |
US417719A US3892480A (en) | 1972-12-27 | 1973-11-21 | Exposure device for copying machine and the like |
GB5818173A GB1446748A (en) | 1972-12-27 | 1973-12-14 | Electrophotographic copying apparatus |
DE19732364324 DE2364324B2 (de) | 1972-12-27 | 1973-12-22 | Belichtungseinrichtung fuer ein elektrophotographisches kopiergeraet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972148094U JPS5232198Y2 (US07923587-20110412-C00022.png) | 1972-12-27 | 1972-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS49106349U true JPS49106349U (US07923587-20110412-C00022.png) | 1974-09-11 |
JPS5232198Y2 JPS5232198Y2 (US07923587-20110412-C00022.png) | 1977-07-22 |
Family
ID=15445093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1972148094U Expired JPS5232198Y2 (US07923587-20110412-C00022.png) | 1972-12-27 | 1972-12-27 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3892480A (US07923587-20110412-C00022.png) |
JP (1) | JPS5232198Y2 (US07923587-20110412-C00022.png) |
DE (1) | DE2364324B2 (US07923587-20110412-C00022.png) |
GB (1) | GB1446748A (US07923587-20110412-C00022.png) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046467A (en) * | 1975-05-14 | 1977-09-06 | Xerox Corporation | Zoom lens copier |
DE2757850C3 (de) * | 1977-12-23 | 1981-01-29 | Agfa-Gevaert Ag, 5090 Leverkusen | Transparente Auflageplatte für ein Original in einem optischen Kopiergerät |
JPS5494038A (en) * | 1978-01-07 | 1979-07-25 | Ricoh Co Ltd | Copier for zerography |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2927516A (en) * | 1955-12-21 | 1960-03-08 | Ibm | Record card controlled electro-graphic printer |
US3556655A (en) * | 1968-01-22 | 1971-01-19 | Addressograph Multigraph | Photoelectrostatic copying machine |
US3724940A (en) * | 1970-12-07 | 1973-04-03 | Ricoh Kk | Electrophotographic copying apparatus with means for erasing marginal images |
-
1972
- 1972-12-27 JP JP1972148094U patent/JPS5232198Y2/ja not_active Expired
-
1973
- 1973-11-21 US US417719A patent/US3892480A/en not_active Expired - Lifetime
- 1973-12-14 GB GB5818173A patent/GB1446748A/en not_active Expired
- 1973-12-22 DE DE19732364324 patent/DE2364324B2/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE2364324B2 (de) | 1976-11-18 |
DE2364324A1 (de) | 1974-07-18 |
GB1446748A (en) | 1976-08-18 |
JPS5232198Y2 (US07923587-20110412-C00022.png) | 1977-07-22 |
US3892480A (en) | 1975-07-01 |