US3359566A - Motor action capillary - Google Patents

Motor action capillary Download PDF

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Publication number
US3359566A
US3359566A US569463A US56946366A US3359566A US 3359566 A US3359566 A US 3359566A US 569463 A US569463 A US 569463A US 56946366 A US56946366 A US 56946366A US 3359566 A US3359566 A US 3359566A
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US
United States
Prior art keywords
capillary
ink
sheet
electrodes
paper
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
US569463A
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English (en)
Inventor
Daniel J Donalies
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Priority to US569463A priority Critical patent/US3359566A/en
Priority to GB34734/67A priority patent/GB1196932A/en
Priority to DE19671537562 priority patent/DE1537562B2/de
Application granted granted Critical
Publication of US3359566A publication Critical patent/US3359566A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/034—Details of scanning heads ; Means for illuminating the original for picture information reproduction using ink, e.g. ink-jet heads
    • 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 the art of recording facsimile signals with droplets of ink on paper or record receiving material in response to electrical signals received from a remote source.
  • the copy to be reproduced is scanned in a manner which will create electrical signals indicative of dark and light areas on the original copy. For example, a spot of light is moved across the surface of the document to be scanned and light reflected from the surface of the document is used to activate a photocell or similar device.
  • the photocell When the light is reflected from a light colored spot on the paper, the photocell is actuated and when the light spot encounters a dark area on the paper, the photocell is not actuated thus electrical signals can be produced depending on whether or not the photocell has seen reflected light or in response to the amount of reflected light that the photocell has received.
  • the electrical signals are transmitted to a remote location where they are translated into light and dark spots on a piece of paper to produce a facsimile of the original document.
  • the present invention pertains to a device which is responsive to such signals to lay down a spot of ink on a sheet of material such as paper.
  • the present invention provides a novel method for controlling the flow of the liquid or ink through a capillary by utilizing the forces created when an electric current is passed through a conductor in a magnetic field.
  • an electrical current is made to flow through a conductive liquid material which is positioned perpendicular to a magnetic field.
  • the conductor which in this case is the recording ink, will experience a force which will act perpendicular to both the current flow and the flux of the magnetic field.
  • the force experienced is utilized to apply drops of ink to the surface of a paper or recording medium in response to the electrical current.
  • the electrical current applied to the conductive ink is related to the electrical pulses received, then the ink deposited will correspond to the incremental areas as scanned on the original document.
  • FIG. 1 is an isometric view of a recording device embodying the present invention.
  • FIG. 2 is a schematic cross-sectional view of an inking capillary used in the device shown in FIG. 1.;
  • marks are made on a sheet of copy paper in response to electrical signals received from a remote source.
  • an electric spark may be used to produce a mark from carbon paper onto the copy paper, or an electrolytic reaction on the copy paper may be used to produce discoloration, or selectively discharging an electrostatic charge on a photoconductive surface, and, as in the present invention, selectively depositing droplets of ink in accordance with electrical signals.
  • the invention disclosed herein pertains to inking type or recorder and basically consists of supplying conductive liquid ink through a capillary to the surface of a copy sheet.
  • the capillary is positioned in and perpendicular to a magnetic field and has an electric current passed through the ink perpendicular to the capillary. By pulsing the current passing through the ink, droplets are caused to be deposited on the surface of the paper or support material.
  • FIGURE 2 shows the walls 10 of a capillary tube 12 and the north and south poles of a magnet 14 positioned adjacent to the capillary 12.
  • the ink is intended to flow down through the capillary tube 12 into contact with the surface of the copy paper.
  • the capillary is sized so that the ink will not flow without some added force.
  • a pair of electrodes 16 and 18- extend through the walls 10 into contact with the ink inside the capillary.
  • an electric current is placed on the electrodes 16 and 18 through the ink and the capillary 12
  • the ink is caused to flow through the capillary depositing on the surface of the copy material.
  • a current carrying conductor in a transverse magnetic field has a force exerted upon it.
  • the magnitude of the force is dependent upon the strength of the field and the magnitude of the current.
  • the current carrying conductor are the electrodes 16 and 18 and the conductive ink in the capillary 12.
  • the conductive ink will form a closed circuit between the two electrodes 16 and 18.
  • the transversed magnetic field is produced by the electro-magnets 14 placed on each side of the capillary 12 and connected to a source of electrical current, not shown.
  • a signal source 20 is connected to the electrodes 16 and 18 by a pair of lead wires 22 and 24, respectively.
  • the electrical signal source 20 is only shown schematically since it does not constitute part of the invention herein and is well known in the art.
  • the electrical signals can originate from a remote source such as a facsimile scanning device or may be produced from a computer or a magnetic tape storage device.
  • FIG. 1 there is a rotatable drum 24 adapted to have a sheet of paper or record receiving material wrapped about its outer surface.
  • the drum 14 is journaled for rotation by a motor MOT-1 at a speed which is usually synchronized with the movement of an original document past a facsimile scanning station at a remote location;
  • the motor MOT-L also drives a lead screw 26 which advances a support block or nut 28 along the length of the drum 24.
  • the block 28 supports the capillary '12 adjacent to the drum 24.
  • an ink reservoir 30 containing a supply of electrically conductive ink32;siich"as, for. example; Chart Recording Ink sold by the Esterbrook Company or any ink that has adequate'electrical'conductivity.
  • both the 'direction of the current and the flux I3 0 throughthe capillary maybe reversed without changing the-direction of 'force exerted on the, ink. Ifthe current passihgfthrbhgh the electro-rnagnet is reversed periodically and the current passing through the ink is also reversed in synchronism Withthemagnetic field the force on the ink 'willbe in thesarne direction at all times.
  • each of the electrodes-in the capillary will alternatefbetween' bei'ng'ac'athode and an anode thus preventing theplating-out 'of metal. It may' be desirable to reversethe current in the electro magnet and the signal 'current at'the end of each line of scan or at the end of each-document thereby'reversing the cathode andthe anode and preventing any plating-out of the metal.
  • a recording apparatus of the type wherein information in the tor-n1 of electrical signals is recorded on receiving sheets-by thedeposition of drops of ink including a capillary tube positioned adjacent to a record receiving-sheet with anopen end closely spaced from the surface of the sheet,
  • Axrecording apparatus of the typewherein information in the form ofelectrical signals is recorded on record receiving sheets or the like'by'deposition of drops 'of ink including means to support a record receiving sheet;
  • a capillary tube capable of containing a conductive ink positioned adjacent to the support means and having anopen-end closely spaced tromthe surface of a record receiving member on the support means, means to supply electrically conductive ink to the capillary, means to create a magnet field perpendicular to the capillary tube, i 1 v I a .pair of electrodes positioned perpendicularto the capillary and extendinginto the capillaryinto contact with the'conductive ink therein, 1 1
  • the means to support a'record-receiving sheet includes ,a rotatable. drum adapted to hold a record receiving sheet and-the means toproduce scanning movement between, the capillary and'thetsu'pport means includes a dry means to rotate the rotatable; drum and a means to move the capillary tube longitudinallyalong' thesurfa-ce of the drum as'the drum is rotated? to thereby advance the capillary a given-distance forfleach, revolution of the drum.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
US569463A 1966-08-01 1966-08-01 Motor action capillary Expired - Lifetime US3359566A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US569463A US3359566A (en) 1966-08-01 1966-08-01 Motor action capillary
GB34734/67A GB1196932A (en) 1966-08-01 1967-07-28 Ink Droplet Recording
DE19671537562 DE1537562B2 (de) 1966-08-01 1967-08-01 Verfahren und vorrichtung zur erzeugung eines tintenstrahls zur aufzeichnung von informationen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569463A US3359566A (en) 1966-08-01 1966-08-01 Motor action capillary

Publications (1)

Publication Number Publication Date
US3359566A true US3359566A (en) 1967-12-19

Family

ID=24275553

Family Applications (1)

Application Number Title Priority Date Filing Date
US569463A Expired - Lifetime US3359566A (en) 1966-08-01 1966-08-01 Motor action capillary

Country Status (3)

Country Link
US (1) US3359566A (enrdf_load_stackoverflow)
DE (1) DE1537562B2 (enrdf_load_stackoverflow)
GB (1) GB1196932A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509816A (en) * 1967-12-22 1970-05-05 Itt Printing arrangement utilizing a continuously moving transfer band
US3750564A (en) * 1971-02-05 1973-08-07 Olympia Werke Ag Electrostatic capillary apparatus for producing an imprint
US3790703A (en) * 1970-06-17 1974-02-05 A Carley Method and apparatus for thermal viscosity modulating a fluid stream
US4023180A (en) * 1976-01-12 1977-05-10 Zenner Walter J Dot printer with electrically propelled ink

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1882043A (en) * 1928-10-20 1932-10-11 Telefunken Gmbh Signal recording
US3289211A (en) * 1964-05-15 1966-11-29 Xerox Corp Electrical recording pen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1882043A (en) * 1928-10-20 1932-10-11 Telefunken Gmbh Signal recording
US3289211A (en) * 1964-05-15 1966-11-29 Xerox Corp Electrical recording pen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509816A (en) * 1967-12-22 1970-05-05 Itt Printing arrangement utilizing a continuously moving transfer band
US3790703A (en) * 1970-06-17 1974-02-05 A Carley Method and apparatus for thermal viscosity modulating a fluid stream
US3750564A (en) * 1971-02-05 1973-08-07 Olympia Werke Ag Electrostatic capillary apparatus for producing an imprint
US4023180A (en) * 1976-01-12 1977-05-10 Zenner Walter J Dot printer with electrically propelled ink

Also Published As

Publication number Publication date
DE1537562B2 (de) 1972-09-21
GB1196932A (en) 1970-07-01
DE1537562A1 (de) 1969-08-28

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