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US3247825A - Wet diaphragm electrostatic printer - Google Patents

Wet diaphragm electrostatic printer Download PDF

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Publication number
US3247825A
US3247825A US275071A US27507163A US3247825A US 3247825 A US3247825 A US 3247825A US 275071 A US275071 A US 275071A US 27507163 A US27507163 A US 27507163A US 3247825 A US3247825 A US 3247825A
Authority
US
United States
Prior art keywords
belt
ink
electrostatic
insulator
latent image
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 - Lifetime
Application number
US275071A
Other languages
English (en)
Inventor
Reynold B Johnson
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to US275071A priority Critical patent/US3247825A/en
Priority to GB11581/64A priority patent/GB987847A/en
Priority to NL646403164A priority patent/NL144406B/xx
Priority to BE646496A priority patent/BE646496A/xx
Priority to DEJ25647A priority patent/DE1237901B/de
Priority to CH514564A priority patent/CH418134A/de
Priority to FR971654A priority patent/FR1392925A/fr
Application granted granted Critical
Publication of US3247825A publication Critical patent/US3247825A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/101—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material
    • G03G15/102—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material for differentially wetting the recording material
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • 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
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0088—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge removing liquid developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force

Definitions

  • This invention relates to electrostatic printers in general and more particularly to an electrostatic printer wherein electrostatically attractable ink is deposited on one side of a thin porous sheet member and an electro static pattern deposited on the other side thereof to selectively draw ink through the porous member for transfer purposes.
  • a latent electrostatic image is formed by conventional means on an insulator member.
  • the electrostatic image is then dusted with an electroscopic powder known as toner which is attracted to the latent electrostatic image to form a visible image of the charge pattern.
  • the thus toned image is then transferred to a paper or other similar output member.
  • the toner is then heat-fixed or solvent-fixed to the paper to provide the final image.
  • Liquid development type systems have proved satisfactory in most applications, but in certain applications such as where the electrostatic image is formed, not through use of conventional photoconductor techniques, but is formed, for instance, by the selective energization of electrostatic probes or pins disposed adjacent the insulator belt, as in the case of computer output printers, terminal or facsimile printers, airborne printers, etc., certain shortcomings have arisen.
  • one electrostatic printer in use today employs electrostatic probes which are disposed on one side of a paper web wihch is to be printed on and an ink source disposed on the other side of the paper web.
  • the probes are selectively energized and the electrostatic attraction provided thereby pulls ink from the ink supply onto the print medium to form images.
  • This system is quite limited in speed of operation due to the relatively slow response of the ink to the electrostatic charge.
  • An object of the present invention is to provide a novel electrostatic printer employing a liquid development technique.
  • Another object of the present invention is to provide a relatively high speed probe-type development electrostatic printer.
  • Another object of the present invention is to provide an electrostatic printer wherein liquid development techniques are used without resultant high background printouts.
  • FIG. 2 is an isometric view of the preferred embodiment of the herein described electrostatic printer.
  • FIG. 3 is a sectional View of the insulating belt utilized in the electrostatic printing system described herein.
  • input information forms an electrostatic image on the surface of an endless belt made of thin, insulating plastic material, such as Teflon.
  • the belt is perforated with many small, closely spaced holes.
  • An inking roller applys ink to the underside of the perforated plastic belt.
  • the latent electrostatic image is formed on the upper surface of the belt by means of a high DC. potential selectively applied across charging wires and the inking roller beneath the belt. Since the belt contains numerous small holes, the polarized molecules of ink on the underside are attracted by charges of opposite sign forming the latent image on the upper surface of the belt. Consequently, ink Will be pulled upward through the holes in accordance with the charge pattern of the latent electrostatic image.
  • sufiicient ink will have been pulled up through the holes so that full characters can be transferred to a paper web which is brought into pressure contact with the upper side of the belt.
  • FIG. 1 For a more detailed description, refer first to FIG. 1.
  • a thin porous belt 1 made of an insulator such as Teflon being moved in the direction of the arrow 2 by suitable means (not shown) past a latent image forming means 3 and a polarized ink applicator 4.
  • the insulator belt 1 then passes in rolling contact with a paper web or other similar print member 5 which is moved in the direction of the arrow 6.
  • the paper web 5 is pressed by means of roller '7 into rolling contact with the belt 1.
  • the insulator belt is porous, having formed therethrough numerous tiny holes 9. While for simplicity of drawing, the insulator belt of FIG. 3 is illustrated as having cylindrical openings or holes formed therethrough, commercially available materials suitable for use in the subject application are more spounge-like in makeup.
  • a latent image 10 is formed by means of the latent image forming means 3 on the upper surface of the insulator belt 1.
  • Any of several latent image forming means may be utilized.
  • a head having selectively energizable electrostatic probes may be utilized as the latent image forming means 3.
  • Another type of latent image forming means which may be utilized in the subject invention is the photoconductor type wherein the photoconductor is charged in darkness to a uniform potential. An image is then projected onto the charged photoconductor to form a latent electrostatic image. This latent electrostatic image may then be transferred to the belt 1.
  • Polarized ink is supplied by means of the polarized ink applicator 4 to the opposite or under surface of the belt 1.
  • the polarized ink may be applied to the underside.
  • the sequence of application of the latent image ill to the belt and the application of the ink to the opposite surface of the belt need not necessarily be in the order as depicted in FIG. 1. Instead, the ink may be applied to the under surface of the belt prior to or simultaneously with the application of the latent image to the upper surface of the belt 1.
  • ink is drawn through the small holes from the underside of the belt 1 by the latent image 10 on the upper surface of the belt such that by the time that the portion of the belt bearing the latent image reaches roller 7, an ink image 11 will have been formed on the upper surface of the belt 1 in the configuration of the electrostatic pattern 111.
  • the ink image 11 then passes in rolling contact with the paper web 5 thus transferring it to the paper .web.
  • any of several types of insulators may be utilized. It has been found, however, that the laws of capillarity may work against clean printing such that ink may seep through all of the holes of the porous sheet and print out as a heavy background when Wettable insulators are used. Thus, Teflon, which is relatively non-wettable, has been found to be a good insulator belt material.
  • any of several types of electrostatically attractable ink may be used.
  • the coloring material in the ink may be a colloidal suspension in which case only the coloring particles will be drawn through the sheet or the coloring material may comprise a dye which is dissolved in the liquid in which case the entire ink must be susceptible to electrostatic attraction.
  • FIG. 2 wherein is shown a preferred embodiment of the novel subject electrostatic printer.
  • numerous rollers are shown which are suspended in suitable bearing means and driven by suitable rotating means neither of which are shown, but which are obvious ly necessary.
  • the thin endless insulator belt 1 having a plurality of holes 9 passing therethrough is mounted on rollers 12, 8, 13, 14 and 15.
  • a latent image forming means 3 Disposed adjacent the upperside of endless belt 1 is a latent image forming means 3 which comprises a head member 16 having a plurality of electrostatic pins or probes 17 disposed in a line transverse to the movement of belt 1 as indicated by arrow 2.
  • the pins 17 of the latent image forming means 3 are in charging association with the insulating belt 1 such that when a DC. potential is selectively applied thereto, a latent image may be formed on the upper surface of the belt 1.
  • the latent image forming means 3 is connected along line 18 to an image formation control unit 19 which is connected along-line 20 to one side of a direct current voltage supply 21.
  • the other side of the direct current voltage supply is connected to line 22 which in turn is connected to lines 23 and 24.
  • Line 23 is connected to the conductor bar which is disposed in the lower portion of an ink chamber 26 while line 24 is connected to a corona discharge unit 27.
  • the image formation control unit 19 is a control unit for controlling the selective application of pulses to the pins 17 of the latent image forming means 3. Any of many well known types of image formation control units 19 can be utilized to perform this function.
  • the image formation control unit in turn accepts an input from a computer or other similar associated master control unit.
  • the conductor probe or bar 25 extends the length of the ink chamber 26 which in turn extends across the full Width of the insulator belt 1.
  • An ink roller 28 is mounted for rotation and held by the ends of the ink chamber 26.
  • An electrostatically attractable ink 29 is contained in the ink chamber 26.
  • Conductor bar 25 is in conductive association with the electrostatically attractable ink 29 contained in the ink chamber 26.
  • the roller 28 is held by the ends of ink chamber 26 such that it is in rolling contact with the lower surface of belt 1 and in contact with the ink 29 held in the ink chamber 26.
  • the corona discharge unit 27 is a conventional commercially available corona discharge unit which functions to uniformly charge the surface of insulator belt 1 adjacent thereto as the belt is driven past it.
  • Rollers 13, 14 and 15 define a belt path which passes down into cleaner chamber 30 which contains a liquid cleaning agent 31.
  • the belt is pinched between a cleaning blade or portion 32 and a pinch roller 33 which functions to clean any excess cleaning liquid from the belt 1 as it leaves the cleaning unit.
  • Roller 14 is mounted for rotation and held by the ends of the cleaner chamber 30.
  • a paper or print web 5 is brought in contact with the upper surface of the insulator belt 1 by means of roller 7.
  • a latent electrostatic image 10 is formed on the upper surface of belt 1 through selective energization of the electrostatic pins or probes 17 disposed in a line transverse to the movement of the belt 1.
  • Energization of the electrostatic pins or probes 17 of the head member 16 is under control of the image formation control unit which receives an input from a computer or other associated master con trol unit (not shown).
  • the latent image 10 then is moved past the polarized ink applicator 4 which contains ink 29 which is polarized by means of the conductor bar 25 which is connected to the opposite side of the direct current voltage supply 21.
  • electrostatically attractable ink of an opposite polarity is applied to the lower surface of insulator belt 1.
  • the ink is pulled through the holes 9 in the belt 1 by the latent image 10 to form an ink image 11.
  • the ink is not pulled through the holes 9.
  • the ink image 11 then passes in rolling contact with the paper or print web 5 and is thereby transferred to the paper print web.
  • the insulator belt 1 containing the remanents of the ink image 11 and the portions of ink 29 applied to the underside thereto which were not transferred to the paper print web 5 then passes down through the liquid cleaning agent 31 contained in the'cleaner chamber 30.
  • the ink remaining on the belt 1 is removed in the cleaner chamber 30. While only one cleaner chamber 30 and cleaning liquid 31 has been illustrated, it is obvious that any number of baths can be provided to assure adequate or thorough cleaning of the ink 29 from the insulator belt 1.
  • the belt then passes between the cleaning blade 32 and pinch roller 33 which remove the fluid 31 from the belt.
  • a fast drying cleaning agent 31 may be utilized such that the insulator belt 1 is completely dry by the time that it reaches the charging and inking station, it is obvious that additional drying means such as a heater, air movement mechanism or vacuum cleaner, may be provided.
  • the corona discharge unit 27 is not necessary for satisfactory operation of the system. It has been found, however, that if the upper portion of the insulator belt 1 is precharged to a polarity opposite to that applied by the pins 17 of the head member 16, that increased or higher resolution images will result.
  • an electrostatic printer in which the input information forms a latent image 10 on the upper surface of an endless belt 1 made of thin insulating plastic material such as Teflon.
  • the belt 1 is perforated with many small, closely spaced holes 9.
  • An inking roller 28 applies electrostatically attractable ink 29 to the under surface of the porous belt 1.
  • a latent electrostatic image 10 is formed on the upper surface of the belt 1 by means of a high DC. potential selectively applied across charging probes 17 and the inking roller 28 beneath the belt 1.
  • This charging station may 75 be replaced with an electrostatic image transfer station.
  • An electrostatic printer comprising: a thin, porous insulator belt of non-wettable material,
  • An electrostatic printer comprising:
  • An electrostatic printer comprising:
  • a latent image forming means disposed in operable association with a first surface of said insulator belt
  • a polarized ink applicator means disposed in operable association with the other surface of said insulator belt
  • An electrostatic printer for printing on a print mem-' dium comprising:
  • first and second roller members operable to cause said print member to be brought into contact with a first surface of said insulator belt
  • a latent image forming means comprising a plurality of selectively energizable electrostatic probes disposed in operable association with said first surface of said insulator belt, and
  • a polarized ink applicator means disposed in operable association with the other surface of said insulator belt.
  • An electrostatic printer for printing on an insulating I print medium having an electrostatic image thereon comprising:'
  • first and second roller-members operable to cause said electrostatic image to be brought into contact with a first surface of said insulator belt
  • a polarized ink applicator means disposed in operable association with the other surface of said insulator belt.
  • An electrostatic printer for printing on a print member comprising:
  • a latent image forming means including a plurality of selectively energizable electrostatic probes disposed adjacent a first side of said insulator belt,
  • an image formation control unit electrically connected to said latent image forming means for applying a direct current of a first polarity to said selectively energizable electrostatic probes
  • a polarized ink applicator disposed on the opposite side of said insulator belt comprising an ink roller in rolling contact with said opposite side of said insulator belt electrically connected to a direct current potential of opposite polarity
  • first and second rollers operable to cause said print member to be brought into contact with said first surface of said insulator belt
  • An electrostatic printer for printing on a print member comprising:
  • a latent image forming means including a plurality of selectively energizable electrostatic probes disposed adjacent a first side of said insulator belt,
  • an image formation control unit electrically connected to said latent image forming means for applying a direct current of a first polarity to said selectively energizable electrostatic probes
  • a polarized ink applicator disposed on the opposite side of said insulator belt comprising an ink roller in rolling contact with said opposite side of said insulator belt electrically connected to a direct current potential of opposite polarity
  • first and second rollers operable to cause said print 3,096,198 7/1963 Schaifert 118-637 X member to be brought into contact with said first 3,102,045 8/1963 Metcalfe et al. 117-37 surface of said insulator belt, cleaning means in operable association with said insu- References C1195 by the PP lator g; h b1 6 UNTTED STATES PATENTS a corona isc arge unit 1n opera e association wit said first side of said insulator belt, and ggg z means for moving said insulator belt in a direction 25589OO 7/1951 H p such that a given portion of said insulator belt 2558901 M1951 passes in sequence past said latent image forming 1o 2583375 1/1952 YT means and said polarized ink applicator means, be- 4/1953 555 tween said first and second rollers, through said 8/1956 8 cleaning means, and past said corona discharge unit.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Wet Developing In Electrophotography (AREA)
US275071A 1963-04-23 1963-04-23 Wet diaphragm electrostatic printer Expired - Lifetime US3247825A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US275071A US3247825A (en) 1963-04-23 1963-04-23 Wet diaphragm electrostatic printer
GB11581/64A GB987847A (en) 1963-04-23 1964-03-19 Electrostatic printers
NL646403164A NL144406B (nl) 1963-04-23 1964-03-25 Elektrostatische drukinrichting.
BE646496A BE646496A (xx) 1963-04-23 1964-04-13
DEJ25647A DE1237901B (de) 1963-04-23 1964-04-14 Verfahren und Vorrichtung zur Entwicklung von Ladungsbildern
CH514564A CH418134A (de) 1963-04-23 1964-04-21 Verfahren und Anordnung zur Entwicklung latenter elektrostatischer Ladungsbilder
FR971654A FR1392925A (fr) 1963-04-23 1964-04-21 Dispositif d'impression électrostatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US275071A US3247825A (en) 1963-04-23 1963-04-23 Wet diaphragm electrostatic printer

Publications (1)

Publication Number Publication Date
US3247825A true US3247825A (en) 1966-04-26

Family

ID=23050771

Family Applications (1)

Application Number Title Priority Date Filing Date
US275071A Expired - Lifetime US3247825A (en) 1963-04-23 1963-04-23 Wet diaphragm electrostatic printer

Country Status (7)

Country Link
US (1) US3247825A (xx)
BE (1) BE646496A (xx)
CH (1) CH418134A (xx)
DE (1) DE1237901B (xx)
FR (1) FR1392925A (xx)
GB (1) GB987847A (xx)
NL (1) NL144406B (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600834A (en) * 1969-06-27 1971-08-24 Teletype Corp Display apparatus
US3804062A (en) * 1969-11-27 1974-04-16 Fuji Photo Film Co Ltd Electrophotographic developing device
US4021586A (en) * 1970-10-08 1977-05-03 Canon Kabushiki Kaisha Method of and means for the development of electrostatic images
FR2374672A1 (fr) * 1976-12-17 1978-07-13 Xerox Corp Dispositif de production d'images electrographiques avec charge par un reseau d'aiguilles
US4246839A (en) * 1979-07-02 1981-01-27 Milliken Research Corporation Nonimpact printer
US4263601A (en) * 1977-10-01 1981-04-21 Canon Kabushiki Kaisha Image forming process
US4368669A (en) * 1981-01-02 1983-01-18 Milliken Research Corporation Method and apparatus for non-impact printing on barrier coated substrate
US4801953A (en) * 1987-06-02 1989-01-31 Xerox Corporation Perforated ink transports for acoustic ink printing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552850A (en) * 1968-02-01 1971-01-05 Xerox Corp Lubricated blade cleaning of imaging photoconductive members
JPS5031453B1 (xx) * 1970-07-29 1975-10-11
FR2126855A5 (xx) * 1971-02-12 1972-10-06 Res Dev Lab
US5340617A (en) * 1992-08-18 1994-08-23 International Business Machines Corporation Electrostatic patterning of multi-layer module lamina

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483462A (en) * 1945-05-03 1949-10-04 William C Huebner Process and apparatus for electronographic printing
US2520504A (en) * 1944-11-22 1950-08-29 William C Huebner Electric printing
US2558900A (en) * 1945-03-26 1951-07-03 William C Huebner Electrostatic printing method and apparatus
US2558901A (en) * 1945-04-27 1951-07-03 William C Huebner Electric printing system
US2583375A (en) * 1945-09-19 1952-01-22 William C Huebner Electric printing
US2633796A (en) * 1944-04-05 1953-04-07 Hoe & Co R Printing means using electric fields
US2758524A (en) * 1953-12-30 1956-08-14 Rca Corp Electrostatic photographic printing
US2758525A (en) * 1953-12-30 1956-08-14 Rca Corp Electrostatic photographic printing
US2777745A (en) * 1952-10-04 1957-01-15 Gen Dynamics Corp Electrostatic recording apparatus
US2832511A (en) * 1955-02-18 1958-04-29 Haloid Co Generator of an aerosol of powder particles
US2932548A (en) * 1956-09-21 1960-04-12 Addressograph Multigraph Apparatus for reproduction of images
US2932690A (en) * 1956-09-21 1960-04-12 Addressograph Multigraph Apparatus for image reproduction
US3045644A (en) * 1957-06-06 1962-07-24 Xerox Corp Two-color electrostatic printing apparatus
US3096198A (en) * 1958-12-22 1963-07-02 Ibm Method for developing latent field images with liquid inks
US3102045A (en) * 1957-06-28 1963-08-27 Metcalfe Kenneth Archibald Production of patterns on cloth or similar substances

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633796A (en) * 1944-04-05 1953-04-07 Hoe & Co R Printing means using electric fields
US2520504A (en) * 1944-11-22 1950-08-29 William C Huebner Electric printing
US2558900A (en) * 1945-03-26 1951-07-03 William C Huebner Electrostatic printing method and apparatus
US2558901A (en) * 1945-04-27 1951-07-03 William C Huebner Electric printing system
US2483462A (en) * 1945-05-03 1949-10-04 William C Huebner Process and apparatus for electronographic printing
US2583375A (en) * 1945-09-19 1952-01-22 William C Huebner Electric printing
US2777745A (en) * 1952-10-04 1957-01-15 Gen Dynamics Corp Electrostatic recording apparatus
US2758524A (en) * 1953-12-30 1956-08-14 Rca Corp Electrostatic photographic printing
US2758525A (en) * 1953-12-30 1956-08-14 Rca Corp Electrostatic photographic printing
US2832511A (en) * 1955-02-18 1958-04-29 Haloid Co Generator of an aerosol of powder particles
US2932548A (en) * 1956-09-21 1960-04-12 Addressograph Multigraph Apparatus for reproduction of images
US2932690A (en) * 1956-09-21 1960-04-12 Addressograph Multigraph Apparatus for image reproduction
US3045644A (en) * 1957-06-06 1962-07-24 Xerox Corp Two-color electrostatic printing apparatus
US3102045A (en) * 1957-06-28 1963-08-27 Metcalfe Kenneth Archibald Production of patterns on cloth or similar substances
US3096198A (en) * 1958-12-22 1963-07-02 Ibm Method for developing latent field images with liquid inks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600834A (en) * 1969-06-27 1971-08-24 Teletype Corp Display apparatus
US3804062A (en) * 1969-11-27 1974-04-16 Fuji Photo Film Co Ltd Electrophotographic developing device
US4021586A (en) * 1970-10-08 1977-05-03 Canon Kabushiki Kaisha Method of and means for the development of electrostatic images
FR2374672A1 (fr) * 1976-12-17 1978-07-13 Xerox Corp Dispositif de production d'images electrographiques avec charge par un reseau d'aiguilles
US4263601A (en) * 1977-10-01 1981-04-21 Canon Kabushiki Kaisha Image forming process
US4246839A (en) * 1979-07-02 1981-01-27 Milliken Research Corporation Nonimpact printer
US4368669A (en) * 1981-01-02 1983-01-18 Milliken Research Corporation Method and apparatus for non-impact printing on barrier coated substrate
US4801953A (en) * 1987-06-02 1989-01-31 Xerox Corporation Perforated ink transports for acoustic ink printing

Also Published As

Publication number Publication date
NL6403164A (xx) 1964-10-26
GB987847A (en) 1965-03-31
FR1392925A (fr) 1965-03-19
CH418134A (de) 1966-07-31
BE646496A (xx) 1964-07-31
NL144406B (nl) 1974-12-16
DE1237901B (de) 1967-03-30

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