FR2451828A1 - ELECTROGRAPHIC PROCESS AND CORRESPONDING ELECTROGRAPHIC APPARATUS - Google Patents

ELECTROGRAPHIC PROCESS AND CORRESPONDING ELECTROGRAPHIC APPARATUS

Info

Publication number
FR2451828A1
FR2451828A1 FR8006334A FR8006334A FR2451828A1 FR 2451828 A1 FR2451828 A1 FR 2451828A1 FR 8006334 A FR8006334 A FR 8006334A FR 8006334 A FR8006334 A FR 8006334A FR 2451828 A1 FR2451828 A1 FR 2451828A1
Authority
FR
France
Prior art keywords
electrographic
support
powder ink
ink
finesse
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
Application number
FR8006334A
Other languages
French (fr)
Other versions
FR2451828B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of FR2451828A1 publication Critical patent/FR2451828A1/en
Application granted granted Critical
Publication of FR2451828B1 publication Critical patent/FR2451828B1/fr
Granted legal-status Critical Current

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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
    • G03G15/344—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array
    • G03G15/348—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array using a stylus or a multi-styli array
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2217/00—Details of electrographic processes using patterns other than charge patterns
    • G03G2217/0041—Process where the image-carrying member is always completely covered by a toner layer
    • G03G2217/0058—Process where the image-carrying member is always completely covered by a toner layer where the toner layer is being charged

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

L'INVENTION CONCERNE L'INDUSTRIE DE LA REPRODUCTION GRAPHIQUE. UNE ENCRE EN POUDRE EST ETALEE EN COUCHE REGULIERE SUR UN SUPPORT 3, PAR UN DISPOSITIF D'ALIMENTATION 10 MONTE EN AMONT D'ELECTRODES 1 DISPOSEES EN RANGEE, EN REGARD DU SUPPORT 3, ET SUIVANT UNE GENERATRICE DE CELUI-CI, POUR COMMANDER L'ENCRAGE DE L'IMAGE PAR POINTS SUCCESSIFS 22. POUR EVITER UNE ACCUMULATION EXCESSIVE DES PARTICULES D'ENCRE EN POUDRE SUR LA POINTE 2 DE CHAQUE ELECTRODE, OU AGIT UN DISPOSITIF D'ATTACTION (AIMANTS 9), UN DISPOSITIF ASSURE L'EVACUATION DE L'ENCRE EN POUDRE EN EXCES (AIMANT 15). APPLICATION AUX MACHINES ELECTROGRAPHIQUES, NOTAMMENT POUR AUGMENTER LEUR VITESSE DE DEBIT, ET AMELIORER LA FINESSE DES IMAGES OBTENUES.THE INVENTION CONCERNS THE GRAPHIC REPRODUCTION INDUSTRY. A POWDER INK IS SPREAD IN A REGULAR LAYER ON A SUPPORT 3, BY A POWER SUPPLY DEVICE 10 UPSTREAM OF ELECTRODES 1 ARRANGED IN A ROW, NEAR SUPPORT 3, AND FOLLOWING A GENERATOR OF THE SUPPORT 3, TO CONTROL THE '' INCHING THE IMAGE BY SUCCESSIVE POINTS 22. TO AVOID AN EXCESSIVE ACCUMULATION OF POWDERED INK PARTICLES ON POINT 2 OF EACH ELECTRODE, OR ACTS AN ATTACHING DEVICE (MAGNETS 9), A DEVICE ENSURES THE EVACUATION OF EXCESS POWDER INK (MAGNET 15). APPLICATION TO ELECTROGRAPHIC MACHINES, IN PARTICULAR FOR INCREASING THEIR FLOW SPEED, AND IMPROVING THE FINESSE OF THE IMAGES OBTAINED.

FR8006334A 1979-03-22 1980-03-21 ELECTROGRAPHIC PROCESS AND CORRESPONDING ELECTROGRAPHIC APPARATUS Granted FR2451828A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2285979A 1979-03-22 1979-03-22

Publications (2)

Publication Number Publication Date
FR2451828A1 true FR2451828A1 (en) 1980-10-17
FR2451828B1 FR2451828B1 (en) 1984-02-17

Family

ID=21811813

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006334A Granted FR2451828A1 (en) 1979-03-22 1980-03-21 ELECTROGRAPHIC PROCESS AND CORRESPONDING ELECTROGRAPHIC APPARATUS

Country Status (9)

Country Link
JP (1) JPS55127578A (en)
AU (1) AU531134B2 (en)
BR (1) BR8001723A (en)
CA (1) CA1142996A (en)
DE (1) DE3010981C3 (en)
FR (1) FR2451828A1 (en)
GB (1) GB2045170B (en)
IT (1) IT1143123B (en)
SE (1) SE444239B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502061A (en) * 1981-09-22 1985-02-26 Canon Kabushiki Kaisha Image forming apparatus
JPS5878783A (en) * 1981-11-06 1983-05-12 Fuji Xerox Co Ltd Recording method of image
US4460907A (en) * 1982-06-15 1984-07-17 Minnesota Mining And Manufacturing Company Electrographic imaging apparatus
US4464672A (en) * 1982-06-15 1984-08-07 Minnesota Mining And Manufacturing Company Electrographic recording apparatus
JPS59155861A (en) * 1983-02-25 1984-09-05 Matsushita Electric Ind Co Ltd Particle removing device
JPS6091369A (en) * 1983-10-26 1985-05-22 Canon Inc Image recording device
JPH02106766A (en) * 1988-10-17 1990-04-18 Hitachi Ltd Electrostatic recording head, image recorder, developer supplying device, display device, and manufacture of electrostatic recording head

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816840A (en) * 1973-04-20 1974-06-11 Minnesota Mining & Mfg Electrographic recording process and apparatus using conductive toner subject to a capacitive force
US3914771A (en) * 1973-11-14 1975-10-21 Minnesota Mining & Mfg Electrographic recording process and apparatus employing synchronized recording pulses
FR2358690A1 (en) * 1976-07-16 1978-02-10 Nippon Telegraph & Telephone ELECTROGRAPHIC RECORDING PROCESS AND DEVICE
US4123762A (en) * 1975-12-26 1978-10-31 Ricoh Company, Ltd. Improved electrostatic head with toner-repelling electrode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438706A (en) * 1966-10-07 1969-04-15 Canon Kk Electrophotographic device
GB1270825A (en) * 1968-05-27 1972-04-19 Rank Xerox Ltd Apparatus and method for removing marking particles from non-image areas
DE2052835A1 (en) * 1969-10-20 1971-05-06 Minnesota Mining & Mfg Device for applying a magnetizable powder to a base
US3659526A (en) * 1969-12-08 1972-05-02 Itt Magnetic and vacuum cleaning device for printer
US3879737A (en) * 1974-04-08 1975-04-22 Minnesota Mining & Mfg Integrated electrographic recording and developing stylus assembly
US3946402A (en) * 1974-05-28 1976-03-23 Minnesota Mining & Manufacturing Company Toner applicator for electrographic recording system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816840A (en) * 1973-04-20 1974-06-11 Minnesota Mining & Mfg Electrographic recording process and apparatus using conductive toner subject to a capacitive force
US3914771A (en) * 1973-11-14 1975-10-21 Minnesota Mining & Mfg Electrographic recording process and apparatus employing synchronized recording pulses
US4123762A (en) * 1975-12-26 1978-10-31 Ricoh Company, Ltd. Improved electrostatic head with toner-repelling electrode
FR2358690A1 (en) * 1976-07-16 1978-02-10 Nippon Telegraph & Telephone ELECTROGRAPHIC RECORDING PROCESS AND DEVICE

Also Published As

Publication number Publication date
GB2045170B (en) 1983-03-09
AU5673080A (en) 1980-09-25
SE8002128L (en) 1980-09-23
DE3010981C3 (en) 1995-03-23
GB2045170A (en) 1980-10-29
IT1143123B (en) 1986-10-22
JPH0145062B2 (en) 1989-10-02
IT8048233A0 (en) 1980-03-21
JPS55127578A (en) 1980-10-02
FR2451828B1 (en) 1984-02-17
SE444239B (en) 1986-03-24
BR8001723A (en) 1980-11-18
CA1142996A (en) 1983-03-15
AU531134B2 (en) 1983-08-11
DE3010981A1 (en) 1980-10-02
DE3010981C2 (en) 1989-06-29

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Legal Events

Date Code Title Description
ST Notification of lapse