GB1024635A - Improvements in methods of and apparatus for electrostatic printing - Google Patents

Improvements in methods of and apparatus for electrostatic printing

Info

Publication number
GB1024635A
GB1024635A GB21242/63A GB2124263A GB1024635A GB 1024635 A GB1024635 A GB 1024635A GB 21242/63 A GB21242/63 A GB 21242/63A GB 2124263 A GB2124263 A GB 2124263A GB 1024635 A GB1024635 A GB 1024635A
Authority
GB
United Kingdom
Prior art keywords
electrodes
backing electrode
backing
electrode
printing
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
GB21242/63A
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 Ltd
Original Assignee
Rank Xerox Ltd
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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1024635A publication Critical patent/GB1024635A/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
    • 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0914—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with a one-component toner
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/14—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by electrographic printing, e.g. xerography; by magnetographic printing
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

1,024,635. Selective printing. RANK XEROX Ltd. May 28, 1963 [June 15, 1962], No. 21242/63. Heading B6F. [Also in Division G2] Electrostatic printing.-An electrostatic printer comprises a conductive character electrode 12 with raised portions 13, a backing electrode 11 upon which is deposited solid electroscopic material 18 and means whereby a potential is applied across the electrodes so that a pattern charge causes the electroscopic material 18 to form an image on an insulating record 16, 17. The material 18 may be uniformly precharged and the backing electrode biased with a voltage of opposite polarity to the potential to move the material 18 from the backing electrode 11 to the electrodes 12. A negative pulse in the order of 600-2000 volts may be applied to the backing electrode or alternatively a positive pulse applied to the character electrodes. Carriers rotating during printing.-The characters 13 may be in annular rows on a drum 27, Fig. 3 (not shown), and the backing electrodes comprise belts 30 driven to move at the same speed as the drum or in steps for each complete line of printing. A contact 35 applies the potential. Characters formed by an assembly of dots or lines.-As indicated in Fig. 5 (not shown) the characters may be formed by a 5 x 7 mosaic. Inking arrangements.-The electroscopic material 18, known as toners having an average particle size of 4-10 microns may be used. Alternatively conductive particles may be used taking advantage of induced electrostatic charge. A further technique using carrier beads considerably larger than the toner particles may be used. The beads pick up the toner particles and impart a charge to them and are cascaded over the electrostatic image by virtue of the stronger electric field in the gap between the backing electrode and the character electrodes. In the case of the backing electrode being formed by belts 30, Figs. 3, 4 (not shown), the beads are deposited thereon by an endless conveyer 42 having a series of buckets 43 dipping into material in a container 45.
GB21242/63A 1962-06-15 1963-05-28 Improvements in methods of and apparatus for electrostatic printing Expired GB1024635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US202900A US3234904A (en) 1962-06-15 1962-06-15 Device for tesiprinting

Publications (1)

Publication Number Publication Date
GB1024635A true GB1024635A (en) 1966-03-30

Family

ID=22751686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21242/63A Expired GB1024635A (en) 1962-06-15 1963-05-28 Improvements in methods of and apparatus for electrostatic printing

Country Status (3)

Country Link
US (1) US3234904A (en)
DE (1) DE1227484B (en)
GB (1) GB1024635A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380069A (en) * 1962-06-19 1968-04-23 Hitachi Ltd Line printer employing selectable electrode matrices arrayed on a rotating drum
US3389398A (en) * 1963-10-17 1968-06-18 Sperry Rand Corp High speed printing apparatus
US3427633A (en) * 1964-05-04 1969-02-11 Motorola Inc Page printing device with marking material bearing web between scanning styli and record medium
US3377598A (en) * 1964-05-04 1968-04-09 Motorola Inc Electrical printing with ink replenishable web moving between styli and record
US3331355A (en) * 1965-01-04 1967-07-18 Xerox Corp Xerographic developing apparatus
US3849126A (en) * 1967-04-18 1974-11-19 M Cantarano Non-electrostatic method for producing electrographic image
US3473074A (en) * 1967-08-31 1969-10-14 Honeywell Inc Ground electrode structure for electroprinting system
US3519461A (en) * 1969-09-02 1970-07-07 Burroughs Corp Electrostatic dipole printing
US3662711A (en) * 1970-03-19 1972-05-16 Xerox Corp Development apparatus
US3931627A (en) * 1971-06-09 1976-01-06 Marcus Cantarano Electrographic devices and apparatus for non-electrostatically producing images from an original provided with a conductivity pattern
US3890621A (en) * 1971-06-09 1975-06-17 Marcus Cantarano Electrographic devices for the non-electrostatic duplication of originals provided with a conductivity pattern formed from indicia and blank areas
CA1041842A (en) * 1973-02-15 1978-11-07 Xerox Corporation Xerographic developing apparatus
US4038916A (en) * 1975-11-10 1977-08-02 Burroughs Corporation Electrostatic imaging apparatus
US4705696A (en) * 1984-09-27 1987-11-10 Olin Hunt Specialty Products Inc. Method of making a lithographic printing plate, printing plates made by the method, and the use of such printing plates to make lithographic prints
NL8801526A (en) * 1988-06-15 1990-01-02 Gascoigne Melotte Bv TEAT CATCHER FOR A MILK MACHINE.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297691A (en) * 1939-04-04 1942-10-06 Chester F Carlson Electrophotography
US2520504A (en) * 1944-11-22 1950-08-29 William C Huebner Electric printing
US2829025A (en) * 1952-04-18 1958-04-01 John E Clemens High speed apparatus for recording intelligence
US2895847A (en) * 1953-12-21 1959-07-21 Battelle Development Corp Electric image development
DE1065363B (en) * 1954-04-01 1959-09-17 Franklin Wells Shoemaker, Princeton, N. J. (V. St. A.) Method and apparatus for making a nonwoven fabric
US2869461A (en) * 1956-02-27 1959-01-20 Eastman Kodak Co Electroprinting from a raised resist pattern
US2996400A (en) * 1956-08-30 1961-08-15 Eastman Kodak Co Positive and negative electroprinting
GB888438A (en) * 1956-11-20 1962-01-31 Otto Kurt Kolb Electrostatic recording of information
US2919967A (en) * 1957-06-06 1960-01-05 Haloid Xerox Inc High-speed electrostatic alphanumerical printer
DE1092490B (en) * 1959-02-27 1960-11-10 Ibm Deutschland Printing process with electrostatic ink transport and arrangement for carrying out the process
US3068481A (en) * 1960-07-01 1962-12-11 Xerox Corp Process and apparatus for tesiprinting

Also Published As

Publication number Publication date
US3234904A (en) 1966-02-15
DE1227484B (en) 1966-10-27

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