ES474487A1 - Electrostatic Printing and Copying - Google Patents

Electrostatic Printing and Copying

Info

Publication number
ES474487A1
ES474487A1 ES474487A ES474487A ES474487A1 ES 474487 A1 ES474487 A1 ES 474487A1 ES 474487 A ES474487 A ES 474487A ES 474487 A ES474487 A ES 474487A ES 474487 A1 ES474487 A1 ES 474487A1
Authority
ES
Spain
Prior art keywords
image
transferred
roller
ion generator
dielectric
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.)
Expired
Application number
ES474487A
Other languages
Spanish (es)
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.)
Dennison Manufacturing Co
Original Assignee
Dennison 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
Priority claimed from US05/873,747 external-priority patent/US4195927A/en
Priority claimed from US05/925,667 external-priority patent/US4160257A/en
Application filed by Dennison Manufacturing Co filed Critical Dennison Manufacturing Co
Publication of ES474487A1 publication Critical patent/ES474487A1/en
Expired 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
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/18—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a charge pattern
    • 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
    • G03G15/32—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 charge pattern is formed dotwise, e.g. by a thermal head
    • G03G15/321—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 charge pattern is formed dotwise, e.g. by a thermal head by charge transfer onto the recording material in accordance with the image

Abstract

In a photocopying apparatus an electrostatic latent image is optically created on a precharged photoconductor 13 and transferred to a dielectric member 25 where it is developed with toner particles and the toner image is transferred to plain paper 35. A semiconductor substrate 15 is preferably included in the photoconductor member 11. In a printing apparatus, an electrostatic image is formed on an imaging roller by an ion generator comprising two electrodes separated by a solid dielectric, with a high frequency alternating potential used to create an air gap breakdown in a region at a junction of one of the electrodes and the solid dielectric. A direct current extraction potential applied to the junction electrode is used to extract ions from the discharge thus created. The ion generator and extractor may also be used in photocopier and other applications. The image bearing dielectric member 25 advantageously consists of impregnated anodized aluminium oxide, with high resistivity, and good hardness and smoothness to ensure essentially total transfer of the toned image to a receptor medium. This transfer may be effected with simultaneous image fixing by passing the receptor between the image roller and a backup roller under high pressure.
ES474487A 1977-10-25 1978-10-24 Electrostatic Printing and Copying Expired ES474487A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US84491377A 1977-10-25 1977-10-25
US05/873,747 US4195927A (en) 1978-01-30 1978-01-30 Double transfer electrophotography
US05/925,667 US4160257A (en) 1978-07-17 1978-07-17 Three electrode system in the generation of electrostatic images
US93972978A 1978-09-05 1978-09-05

Publications (1)

Publication Number Publication Date
ES474487A1 true ES474487A1 (en) 1979-11-01

Family

ID=27505897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474487A Expired ES474487A1 (en) 1977-10-25 1978-10-24 Electrostatic Printing and Copying

Country Status (14)

Country Link
JP (2) JPS5478134A (en)
AR (1) AR228339A1 (en)
AU (1) AU532523B2 (en)
BR (1) BR7807037A (en)
CA (1) CA1120992A (en)
CH (3) CH632856A5 (en)
DE (1) DE2846474A1 (en)
DK (1) DK473478A (en)
ES (1) ES474487A1 (en)
FR (1) FR2422987A1 (en)
GB (1) GB2007157B (en)
MX (1) MX147901A (en)
NL (1) NL7810638A (en)
SE (1) SE439698B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ198031A (en) * 1980-08-21 1988-11-29 Dennison Mfg Co Electrostatic printer: charged particles extracted from glow discharge
JPS60176443U (en) * 1984-04-28 1985-11-22 増田　閃一 electric field device
JPH0665496B2 (en) * 1984-11-07 1994-08-24 キヤノン株式会社 Electrostatic recording method and head
JPS63239471A (en) * 1988-02-22 1988-10-05 Minolta Camera Co Ltd Corona discharging device
US5239317A (en) * 1991-02-20 1993-08-24 Kabushiki Kaisha Toshiba Apparatus for generating ions in solid ion recording head with improved stability
JPH06135048A (en) * 1992-10-22 1994-05-17 Fuji Xerox Co Ltd Electrostatic recording head
JPH10151102A (en) * 1996-11-25 1998-06-09 Setsuo Tanaka Chopping-block washing container
DE19957644C2 (en) * 1999-11-30 2002-09-12 Axiva Gmbh Corona roller with improved impregnation
US11269284B2 (en) 2017-04-27 2022-03-08 Hewlett-Packard Development Company, L.P. Pattern discharge to photoconductor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051870B (en) * 1957-08-14 1959-03-05 Siemag Feinmech Werke Gmbh Method and device for the production of charge images on electrically non-conductive charge image carriers made of paper or similar material
US3701996A (en) * 1970-12-02 1972-10-31 United Aircraft Corp Transfer electrostatic printing system
DE2100393A1 (en) * 1971-01-07 1972-07-20 Philips Patentverwaltung Electrode arrangement for the transmission of information during electrostatic printing
BE795932A (en) * 1972-03-03 1973-06-18 Cellophane Sa IMPROVEMENT OF PHOTOELECTROSTATIC REPRODUCTION PROCESSES BY TRANSFER OF CHARGES
FR2254052B1 (en) * 1973-12-05 1978-03-03 Cellophane Sa

Also Published As

Publication number Publication date
JPH03206470A (en) 1991-09-09
BR7807037A (en) 1979-05-15
FR2422987B1 (en) 1984-03-30
CA1120992A (en) 1982-03-30
JPH0544036B2 (en) 1993-07-05
MX147901A (en) 1983-01-31
AR228339A1 (en) 1983-02-28
AU4102678A (en) 1980-05-01
CH636456A5 (en) 1983-05-31
FR2422987A1 (en) 1979-11-09
DE2846474C2 (en) 1990-08-09
DK473478A (en) 1979-04-26
CH632856A5 (en) 1982-10-29
JPH0262862B2 (en) 1990-12-26
CH636455A5 (en) 1983-05-31
NL7810638A (en) 1979-04-27
JPS5478134A (en) 1979-06-22
DE2846474A1 (en) 1979-04-26
SE439698B (en) 1985-06-24
AU532523B2 (en) 1983-10-06
GB2007157B (en) 1982-10-27
GB2007157A (en) 1979-05-16
SE7811082L (en) 1979-04-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981001