FR2261558B1 - - Google Patents
Info
- Publication number
- FR2261558B1 FR2261558B1 FR7443565A FR7443565A FR2261558B1 FR 2261558 B1 FR2261558 B1 FR 2261558B1 FR 7443565 A FR7443565 A FR 7443565A FR 7443565 A FR7443565 A FR 7443565A FR 2261558 B1 FR2261558 B1 FR 2261558B1
- Authority
- FR
- France
- 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
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
- G03G2215/0439—Automatic detection of properties
-
- 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
-
- 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
- G03G2215/0468—Image area information changed (default is the charge image)
- G03G2215/047—Image corrections
- G03G2215/0473—Image corrections due to document imperfections, e.g. punchholes, books
-
- 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
- G03G2215/0468—Image area information changed (default is the charge image)
- G03G2215/048—Technical-purpose-oriented image area changes
- G03G2215/0482—Toner-free areas produced
- G03G2215/0485—Avoiding problems in standard processing steps, such as transfer and fixing
-
- 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
- G03G2215/0468—Image area information changed (default is the charge image)
- G03G2215/0492—Without changing the charge image
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00442533A US3834807A (en) | 1974-02-14 | 1974-02-14 | Copier with leading edge image control |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2261558A1 FR2261558A1 (sv) | 1975-09-12 |
FR2261558B1 true FR2261558B1 (sv) | 1978-12-22 |
Family
ID=23757173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7443565A Expired FR2261558B1 (sv) | 1974-02-14 | 1974-12-27 |
Country Status (13)
Country | Link |
---|---|
US (1) | US3834807A (sv) |
JP (1) | JPS5925219B2 (sv) |
BE (1) | BE824343A (sv) |
CA (1) | CA1035004A (sv) |
CH (1) | CH581852A5 (sv) |
DE (1) | DE2505833C2 (sv) |
DK (1) | DK142634B (sv) |
FR (1) | FR2261558B1 (sv) |
GB (1) | GB1447819A (sv) |
IL (1) | IL46565A (sv) |
IT (1) | IT1027651B (sv) |
NL (1) | NL7500896A (sv) |
SE (1) | SE391591B (sv) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50122263A (sv) * | 1974-02-19 | 1975-09-25 | ||
JPS5123724A (en) * | 1974-08-06 | 1976-02-25 | Ricoh Kk | Fukushakitoniokeru suritsutoshomeisochi |
JPS5173434A (en) * | 1974-12-23 | 1976-06-25 | Canon Kk | Rokosochi |
US3998541A (en) * | 1975-04-18 | 1976-12-21 | Eastman Kodak Company | Illumination arrangement providing for interframe flashdown |
NL7507493A (nl) * | 1975-06-24 | 1976-12-28 | Oce Van Der Grinten Nv | Kopieerinrichting. |
US4046471A (en) * | 1975-11-03 | 1977-09-06 | International Business Machines Corporation | Dual mode electrophotographic apparatus having dual function printing beam |
US4118119A (en) * | 1976-09-02 | 1978-10-03 | Xerox Corporation | Facetted edge fadeout reflector |
US4162845A (en) * | 1977-09-15 | 1979-07-31 | Xerox Corporation | Copier for greater than standard length documents |
US4178095A (en) * | 1978-04-10 | 1979-12-11 | International Business Machines Corporation | Abnormally low reflectance photoconductor sensing system |
US4183657A (en) * | 1978-04-10 | 1980-01-15 | International Business Machines Corporation | Dynamic reference for an image quality control system |
US4179213A (en) * | 1978-04-10 | 1979-12-18 | International Business Machines Corporation | Vector pinning in an electrophotographic machine |
US4255042A (en) * | 1979-03-26 | 1981-03-10 | International Business Machines Corporation | Light pipe for accurate erasure of photoconductor charge |
US4431301A (en) * | 1980-03-12 | 1984-02-14 | Tokyo Shibaura Denki Kabushiki Kaisha | Electrostatic copying apparatus with means for preventing contamination of reverse side of copying medium |
CA1173890A (en) * | 1980-08-28 | 1984-09-04 | John H. Dodge | Control of copier start-up operations |
US4463284A (en) * | 1981-07-28 | 1984-07-31 | Konishiroku Photo Industry Co., Ltd. | Method and apparatus for controlling luminous intensity of fluorescent lamp of reproducing apparatus |
JPS5823033A (ja) * | 1981-08-03 | 1983-02-10 | Fuji Xerox Co Ltd | 電子写真法 |
DE3334362A1 (de) * | 1982-09-25 | 1984-03-29 | Canon K.K., Tokyo | Bilderzeugungseinrichtung |
JPS5968728A (ja) * | 1982-10-12 | 1984-04-18 | Canon Inc | 原稿検出装置 |
DE3341774C3 (de) * | 1982-11-20 | 1994-09-01 | Canon Kk | Vorrichtung zur bereichsweisen Entladung eines photoleitfähigen Aufzeichnungsmaterials |
US4505575A (en) * | 1983-08-26 | 1985-03-19 | Xerox Corporation | Non-image erase system for reproduction machines |
US4655579A (en) * | 1984-08-30 | 1987-04-07 | Ricoh Company, Ltd. | Multicolored image forming apparatus |
US4725868A (en) * | 1985-06-17 | 1988-02-16 | Mita Industrial Co., Ltd. | Electrostatic copying machine |
JPS63274973A (ja) * | 1987-05-06 | 1988-11-11 | Ricoh Co Ltd | 複写機のイレ−サ点灯制御装置 |
JPS63194616U (sv) * | 1987-05-30 | 1988-12-14 | ||
JPH01198770A (ja) * | 1987-10-16 | 1989-08-10 | Ricoh Co Ltd | 複写機の制御装置 |
US4914483A (en) * | 1989-04-17 | 1990-04-03 | Eastman Kodak Company | Electrostatographic transfer with artifact suppression |
JP3162358B2 (ja) * | 1989-04-30 | 2001-04-25 | 株式会社リコー | デジタル複写機 |
JP3089133B2 (ja) * | 1993-05-18 | 2000-09-18 | 東北リコー株式会社 | 画像処理装置 |
US5802215A (en) * | 1996-12-17 | 1998-09-01 | Xerox Corporation | Quadrant-based density detection for lead edge lightening |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3135179A (en) * | 1959-04-02 | 1964-06-02 | Xerox Corp | Xerographic apparatus |
BE793559A (fr) * | 1971-12-30 | 1973-06-29 | Xerox Corp | Machine electrostatographique comportant un dispositif de pre-developpement d'exposition |
-
1974
- 1974-02-14 US US00442533A patent/US3834807A/en not_active Expired - Lifetime
- 1974-12-13 IT IT30511/74A patent/IT1027651B/it active
- 1974-12-27 FR FR7443565A patent/FR2261558B1/fr not_active Expired
- 1974-12-31 CA CA217,166A patent/CA1035004A/en not_active Expired
-
1975
- 1975-01-13 BE BE152342A patent/BE824343A/xx not_active IP Right Cessation
- 1975-01-14 JP JP50006010A patent/JPS5925219B2/ja not_active Expired
- 1975-01-27 NL NL7500896A patent/NL7500896A/xx not_active Application Discontinuation
- 1975-01-29 GB GB383875A patent/GB1447819A/en not_active Expired
- 1975-02-04 IL IL46565A patent/IL46565A/en unknown
- 1975-02-12 DK DK50575AA patent/DK142634B/da unknown
- 1975-02-12 DE DE2505833A patent/DE2505833C2/de not_active Expired
- 1975-02-13 CH CH176975A patent/CH581852A5/xx not_active IP Right Cessation
- 1975-07-16 SE SE7501420A patent/SE391591B/sv unknown
Also Published As
Publication number | Publication date |
---|---|
DE2505833C2 (de) | 1982-12-02 |
IT1027651B (it) | 1978-12-20 |
IL46565A (en) | 1977-12-30 |
IL46565A0 (en) | 1975-04-25 |
JPS5925219B2 (ja) | 1984-06-15 |
CA1035004A (en) | 1978-07-18 |
JPS50115832A (sv) | 1975-09-10 |
SE7501420L (sv) | 1975-08-15 |
SE391591B (sv) | 1977-02-21 |
BE824343A (fr) | 1975-05-02 |
CH581852A5 (sv) | 1976-11-15 |
DK142634C (sv) | 1981-08-03 |
NL7500896A (nl) | 1975-08-18 |
GB1447819A (en) | 1976-09-02 |
FR2261558A1 (sv) | 1975-09-12 |
DK50575A (sv) | 1975-10-13 |
DE2505833A1 (de) | 1975-08-28 |
US3834807A (en) | 1974-09-10 |
DK142634B (da) | 1980-12-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |