FR2395532A1 - Procede et appareil de formation d'images pour reprographie - Google Patents
Procede et appareil de formation d'images pour reprographieInfo
- Publication number
- FR2395532A1 FR2395532A1 FR7808802A FR7808802A FR2395532A1 FR 2395532 A1 FR2395532 A1 FR 2395532A1 FR 7808802 A FR7808802 A FR 7808802A FR 7808802 A FR7808802 A FR 7808802A FR 2395532 A1 FR2395532 A1 FR 2395532A1
- Authority
- FR
- France
- Prior art keywords
- reprography
- allows
- images
- drum
- adjustment
- 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.)
- 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
- G03G15/05—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means
- G03G15/051—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means by modulating an ion flow through a photoconductive screen onto which a charge image has been formed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
L'invention concerne le réglage du fonctionnement des appareils de reprographie. Elle se rapporte à un appareil 43 de reprographie qui permet des copies multiples et comporte un tambour 46 formé par une grille photoconductrice portant une image latente primaire qui permet la formation de nombreuses images latentes secondaires sur un tambour 57 sans nouvelle exposition de l'original. Selon l'invention, le courant ionique traversant la grille 46 est détecté et permet le réglage des conditions de traitement et la formation d'une image visible ayant toujours la même densité optique. Application aux appareils de reprographie de forte puissance.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3383977A JPS53119037A (en) | 1977-03-26 | 1977-03-26 | Forming method of image |
JP3384177A JPS53119039A (en) | 1977-03-26 | 1977-03-26 | Forming method of image |
JP52033840A JPS6016624B2 (ja) | 1977-03-26 | 1977-03-26 | 画像形成方法 |
JP4824377A JPS53133036A (en) | 1977-04-26 | 1977-04-26 | Image forming method |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2395532A1 true FR2395532A1 (fr) | 1979-01-19 |
FR2395532B1 FR2395532B1 (fr) | 1986-11-21 |
Family
ID=27459849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7808802A Expired FR2395532B1 (fr) | 1977-03-26 | 1978-03-24 | Procede et appareil de formation d'images pour reprographie |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2812970A1 (fr) |
FR (1) | FR2395532B1 (fr) |
GB (2) | GB1603800A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2063158B (en) * | 1979-11-16 | 1983-08-10 | Gestetner Mfg Ltd | Copying method and apparatus |
JPS5773758A (en) * | 1980-10-24 | 1982-05-08 | Canon Inc | Protector for screen-shaped photoreceptor |
US4526850A (en) * | 1983-06-27 | 1985-07-02 | Photon Chroma, Inc. | Diode bias electrophotographic toning system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3680954A (en) * | 1965-04-30 | 1972-08-01 | Eastman Kodak Co | Electrography |
US3881921A (en) * | 1971-10-01 | 1975-05-06 | Eastman Kodak Co | Electrophotographic process employing image and control grid means |
FR2289944A1 (fr) * | 1974-10-23 | 1976-05-28 | Coulter Information Systems | Procede et dispositif de reproduction electrophotographique en copies multiples |
US3986871A (en) * | 1973-12-12 | 1976-10-19 | Addressograph-Multigraph Corporation | Charged particle modulator device and improved imaging methods for use thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788739A (en) * | 1972-06-21 | 1974-01-29 | Xerox Corp | Image compensation method and apparatus for electrophotographic devices |
US3864035A (en) * | 1973-09-14 | 1975-02-04 | Coulter Information Systems | Shutterless camera system |
JPS5441502B2 (fr) * | 1974-10-21 | 1979-12-08 | ||
JPS5160527A (en) * | 1974-11-22 | 1976-05-26 | Canon Kk | Gazokeiseiho oyobi sochi |
-
1978
- 1978-03-22 GB GB4028780A patent/GB1603800A/en not_active Expired
- 1978-03-22 GB GB1142578A patent/GB1603181A/en not_active Expired
- 1978-03-23 DE DE19782812970 patent/DE2812970A1/de active Granted
- 1978-03-24 FR FR7808802A patent/FR2395532B1/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3680954A (en) * | 1965-04-30 | 1972-08-01 | Eastman Kodak Co | Electrography |
US3881921A (en) * | 1971-10-01 | 1975-05-06 | Eastman Kodak Co | Electrophotographic process employing image and control grid means |
US3986871A (en) * | 1973-12-12 | 1976-10-19 | Addressograph-Multigraph Corporation | Charged particle modulator device and improved imaging methods for use thereof |
FR2289944A1 (fr) * | 1974-10-23 | 1976-05-28 | Coulter Information Systems | Procede et dispositif de reproduction electrophotographique en copies multiples |
Also Published As
Publication number | Publication date |
---|---|
DE2812970C2 (fr) | 1990-08-02 |
FR2395532B1 (fr) | 1986-11-21 |
GB1603181A (en) | 1981-11-18 |
GB1603800A (en) | 1981-11-25 |
DE2812970A1 (de) | 1978-10-05 |
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